Document:

EX-10.4

 Exhibit 10.4 
  

			
	

	  	 Second Rider to General Agreement of Indemnity

with respect to NASDI/ Yankee Transferred Bonds

 DATE OF GIA: September 7, 2011 

DATE OF RIDER: April 23, 2014 
 THIS SECOND RIDER TO
THE GENERAL AGREEMENT OF INDEMNITY WITH RESPECT TO NASDI/ YANKEE TRANSFERRED BONDS (“RIDER”), shall be attached to and incorporated into the General Agreement of Indemnity (“GIA”), dated as of the date set forth above which has
been executed by GREAT LAKES DREDGE & DOCK CORPORATION (“GLDD”), GREAT LAKES DREDGE & DOCK COMPANY, LLC, LYDON DREDGING & CONSTRUCTION COMPANY, LTD., FIFTY-THREE DREDGING CORPORATION, DAWSON MARINE SERVICES
COMPANY, GREAT LAKES DREDGE & DOCK ENVIRONMENTAL, INC. (f/k/a Great Lakes Caribbean Dredging, Inc.), NASDI, LLC, NASDI HOLDINGS CORPORATION, YANKEE ENVIRONMENTAL SERVICES, LLC. and GREAT LAKES DREDGE & DOCK (BAHAMAS) LTD., as
Contractors and Indemnitors (“Indemnitors”), on behalf of ZURICH AMERICAN INSURANCE COMPANY and its Subsidiaries and Affiliates in any jurisdiction, including, but not limited to FIDELITY AND DEPOSIT COMPANY OF MARYLAND, COLONIAL AMERICAN
CASUALTY AND SURETY COMPANY, and AMERICAN GUARANTEE AND LIABILITY INSURANCE COMPANY, their successors and assigns (“Surety”) (individually and collectively “Surety”). 

Indemnitors have requested that Surety (i) consent to the sale of NASDI, LLC (“NASDI”) and Yankee Environmental Services, LLC
(“Yankee”), (ii) release and discharge NASDI and Yankee from the GLDD Bonding Agreements and their respective duties, obligations and liabilities thereunder, (iii) release and terminate all of its security interests in and liens
on the property and assets of NASDI and Yankee granted under the GLDD Bonding Agreements and (iv) agree that Indemnitors’ liability under the GLDD Bonding Agreements be released or transferred with respect to the Transferred Bonds (as
defined below); and 
 Surety is willing to (i) consent to the sale of NASDI and Yankee, (ii) release and discharge NASDI and Yankee from the GLDD
Bonding Agreements and their respective duties, obligations and liabilities thereunder, (iii) release and terminate all of its security interests in and liens on the property and assets of NASDI and Yankee granted under the GLDD Bonding
Agreements and (iv) consent to the limited release of Indemnitors’ liability for the Transferred Bonds under the GLDD Bonding Agreements in exchange for and on the condition (a) of the transfer of GLDD’s obligations with respect
to the Transferred Bonds from the GLDD Bonding Agreements to the separate GLDD Guarantee for Transferred Bonds (as defined below) in accordance with this Rider and (b) that, as of the closing of the Permitted Sale (as defined below),
Dore & Associates Contracting, Inc. (“Dore”), the Purchaser (as defined below), NASDI, Yankee and the other subsidiaries and affiliates of Dore party thereto as “Indemnitors” execute a new General Indemnity Agreement
with respect to the Transferred Bonds, together with other underwriting conditions and security required by Surety and set forth herein. 
 As an inducement
to Surety to issue or refrain from cancelling Transferred Bonds, to release and discharge NASDI and Yankee from the GLDD Bonding Agreements and their respective duties, obligations and liabilities thereunder, to release and terminate all of its
security interests in and liens on the property and assets of NASDI and Yankee granted under the GLDD Bonding Agreements, to release the liability of Indemnitors for the Transferred Bonds under the GLDD Bonding Agreements and to accept the GLDD
Guarantee for Transferred Bonds in lieu of Indemnitors’ indemnity for the Transferred Bonds, Indemnitors represent and agree for themselves, their heirs, executors, administrators, successors and assigns, jointly and severally, as follows: 

1. SCOPE: Except as otherwise stated in the Release of NASDI and Yankee in Section 4 below, this Rider applies only to the transferred bonds set
forth on Exhibit A, List of Transferred Bonds, which is attached to this Rider and incorporated by reference, including all renewals, extensions, modifications, replacements or substitutions thereof (collectively, the “Transferred Bonds”
and each individually a “Transferred Bond”). This Rider does not cover any other bond which Surety may issue for GLDD or others which is not a Transferred Bond (the “Non-Transferred Bonds”), and with respect to those
Non-Transferred Bonds, the GLDD Bonding Agreements remain in full force and effect, subject to the Release of NASDI and Yankee set forth in Section 4 below. 

2. PERMITTED SALE: Pursuant to the Ownership Interest Purchase Agreement dated as of April 23, 2014 (the “Purchase Agreement”) by
and among North American Leasing, Inc. a Michigan corporation (the “Purchaser”), NASDI Holdings Corporation, (“NASDI Holdings”), GLDD, Yankee and NASDI, the Purchaser will purchase from NASDI Holdings, and NASDI
Holdings will sell, convey, assign, transfer and deliver to the Purchaser, all of the ownership interests of NASDI and Yankee, as provided in the Purchase Agreement (the “Permitted Sale”). The Surety consents to such Permitted Sale
and acknowledges and agrees that the consummation of the Permitted Sale shall not constitute an “Event of Default” under the GLDD Bonding Agreements. 

 3. In connection with the Permitted Sale, Surety requests that Indemnitors execute and deliver to Surety this
Rider and the other documents required below, simultaneously with the closing of the Permitted Sale. 
 4. RELEASE OF NASDI AND YANKEE FROM THE GLDD
BONDING AGREEMENTS: Effective as of the closing of the Permitted Sale, Surety (i) releases and discharges NASDI and Yankee from the GLDD Bonding Agreements, and from all obligations and Loss under the GLDD Bonding Agreements, and
(ii) releases and terminates all of its security interests in and liens on the property and assets of NASDI and Yankee granted under the GLDD Bonding Agreements, in each case, on the condition that (a) NASDI and Yankee execute the Dore
Agreement to transfer their obligations under the GLDD Bonding Agreements to the Dore Agreement with respect to the Transferred Bonds; (b) GLDD execute the GLDD Guarantee for Transferred Bonds to transfer GLDD’s obligations under the GLDD
Bonding Agreements with respect to the Transferred Bonds to the GLDD Guarantee for Transferred Bonds; and (c) the Administrative Agent’s execution of its Release and Termination with respect to the Permitted Sale. The release and discharge
of NASDI and Yankee set forth in this Section 4, once the Dore Agreement is executed, applies to all Bonds issued under the GIA and is not limited to the Transferred Bonds; provided, however, nothing in this Section 4 is
intended to or does release and discharge NASDI and Yankee from their obligations with respect to the Transferred Bonds in accordance with the Dore Agreement and such obligations shall be novated with NASDI’s and Yankee’s execution of the
Dore Agreement. 
 5. RELEASE OF GLDD AND ALL OTHER INDEMNITORS WITH RESPECT TO THE TRANSFERRED BONDS: Effective as of the closing of the Permitted
Sale, Surety (i) releases GLDD and the other Indemnitors from the GLDD Bonding Agreements, and from all obligations and Loss under the GLDD Bonding Agreements, with respect to the Transferred Bonds, and (ii) agrees that the Transferred
Bonds shall not constitute “Bonds” under and for all purposes of the GLDD Bonding Agreements, in each case, on the condition that (a) GLDD execute the GLDD Guarantee for Transferred Bonds to transfer GLDD’s obligations under the
GLDD Bonding Agreements to the GLDD Guarantee for Transferred Bonds and that (b) NASDI and Yankee execute the Dore Agreement to transfer NASDI and Yankee’s obligations under the GLDD Bonding Agreements to the Dore Agreement with respect to
the Transferred Bonds. 
 6. GOVERNING LAW: This Rider shall be governed by and interpreted under the laws of the State of New York, without regard to
principles of conflicts of laws. 
 7. EXECUTION AND CHANGES: This Rider may be executed in any number of counterparts with separate signature pages,
all of which taken together shall constitute the Rider, and any of the parties hereto may execute this Rider by signing any such counterpart. This Rider shall be effective and immediately binding as to each Indemnitor when Indemnitor executes this
Agreement and complies with the conditions indicated in Sections 4 and 5 above, regardless of whether any other party has executed this Rider or fails to execute this Rider. This Rider shall only be changed or modified in writing. 

8. DEFINITIONS: 
 Claim means any notice, claim,
demand, defense, counterclaim, setoff, lawsuit or proceeding or circumstance which may constitute, lead to or result in Loss, liability, or asserted liability in connection with any Transferred Bond. 

Dore Agreement means the General Indemnity Agreement executed by Dore and others, dated April 23, 2014 a copy of which is attached to this Rider
as Exhibit B and is incorporated herein by reference. 
 GLDD Bonding Agreements means the GIA as subsequently modified, amended, supplemented or
replaced, including but not limited to the Rider dated June 4, 2012, and all underlying and related agreements and modifications of agreements, including the Equipment Utilization Agreement dated June 4, 2012 and the Lender-Surety
Agreement dated June 4, 2012. 
 GLDD Guarantee for Transferred Bonds means the Guarantee and Indemnity Agreement provided with respect to the
Transferred Bonds, dated April 23, 2014, which is executed concurrently with this Rider, a copy of which is attached to this Rider as Exhibit C and is incorporated herein by reference. 

Loss means, with respect to any Transferred Bond, all premiums due to Surety and any and all liability, loss, Claims, damages, court costs and
expenses, attorneys’ fees (including those of Surety), consultant fees, and all other costs and expenses, including but not limited to any additional or extra-contractual damages arising from Surety’s Settlement of any Claim. Pre-judgment
and post-judgment interest shall accrue from the date of any payment made by Surety with respect to any of the foregoing at the maximum default rate permitted by law. 

  
 2 

 Settlement means to adjust, pay, perform, decline to perform, compromise, settle, deny, litigate or
otherwise resolve any Claim and/or any claim, counterclaim, defense or setoff held by or made against any Indemnitor or other entity and/or to take any action to protect any rights of Surety or to preserve or protect Surety’s interests, or to
avoid or lessen any alleged liability. 
 Signed and sealed this 23rd day of April, 2014. 

SIGNATURE PAGE(S) TO FOLLOW 

(The remainder of this page is intentionally left blank) 

  
 3 

 SIGNATURE INSTRUCTIONS 

1. All signatures should be notarized and dated.  

2. If the signer is a Corporation, an officer on the operational side (i.e. President, CEO, COO) and an officer on the finance side (i.e. Secretary, CFO,
Treasurer) should sign and the Corporation should attach its seal. 
 3. If one signer is signing in two different capacities (i.e. President and Secretary),
then list both titles in the signature block and notary acknowledgement. 
 4. If the signer is an individual (personal) Indemnitor, each Indemnitor should
sign and date their signature and provide all of the required information. Each signature should be witnessed and notarized. 
 By signing below, each
Indemnitor affirms to Surety that they have read this Rider carefully and understand their obligations as an Indemnitor. Each signer executing this Rider on behalf of such Indemnitor represents and warrants solely in their capacity as an officer of
such Indemnitor and not individually that he or she holds the office or position shown and that he or she is duly authorized by Indemnitor to execute this Rider on behalf of Indemnitor and to bind Indemnitor to all of the terms and conditions of
this Rider.  
  

					
	 	 	 	 	INDEMNITOR
		 		 	GREAT LAKES DREDGE & DOCK CORPORATION
			
	ATTEST OR WITNESS:	 		 	
			
	/s/ Ellen Parker Burke	 		 	/s/ Richard Roman
	Ellen Parker Burke, Assistant Treasurer	 		 	Richard Roman, Treasurer
			
		 		 	INDEMNITOR
		 		 	GREAT LAKES DREDGE & DOCK COMPANY, LLC
			
	ATTEST OR WITNESS:	 		 	
			
	/s/ Ellen Parker Burke	 		 	/s/ Richard Roman
	 Ellen Parker Burke, Secretary and
 Assistant
Treasurer
	 		 	Richard Roman, Treasurer
			
		 		 	INDEMNITOR
		 		 	LYDON DREDGING & CONSTRUCTION COMPANY, LTD.
			
	ATTEST OR WITNESS:	 		 	
			
	/s/ Ellen Parker Burke	 		 	/s/ Katherine M. Hayes
	 Ellen Parker Burke, Secretary and
 Assistant
Treasurer
	 		 	Katherine M. Hayes, Treasurer

 (signatures continued next page) 

  
 4 

					
		 		 	INDEMNITOR
		 		 	FIFTY-THREE DREDGING CORPORATION
			
	ATTEST OR WITNESS:	 		 	
			
	/s/ Katherine M. Hayes	 		 	/s/ Paul E. Dinquel
	Katherine M. Hayes, Treasurer	 		 	Paul E. Dinquel, Vice President
			
		 		 	INDEMNITOR
		 		 	DAWSON MARINE SERVICES COMPANY
			
	ATTEST OR WITNESS:	 		 	
			
	/s/ Cheryle A. Stone	 		 	/s/ Catherine M. Hoffman
	Cheryle A. Stone, Secretary	 		 	Catherine M. Hoffman, President
			
		 		 	INDEMNITOR
		 		 	GREAT LAKES DREDGE & DOCK ENVIRONMENTAL, INC. (f/k/a Great Lakes Caribbean Dredging, Inc.)
			
	ATTEST OR WITNESS:	 		 	
			
	/s/ Ellen Parker Burke	 		 	/s/ Katherine M. Hayes
	Ellen Parker Burke, Secretary	 		 	Katherine M. Hayes, Treasurer
			
		 		 	INDEMNITOR
		 		 	NASDI, LLC
			
	ATTEST OR WITNESS:	 		 	
			
	/s/ Ellen Parker Burke	 		 	/s/ Katherine M. Hayes
	Ellen Parker Burke, Assistant Secretary	 		 	Katherine M. Hayes, Treasurer

 (signatures continued next page) 

  
 5 

					
		 		 	INDEMNITOR
		 		 	NASDI HOLDINGS CORPORATION
			
	ATTEST OR WITNESS:	 		 	
			
	/s/ Ellen Parker Burke	 		 	/s/ Katherine M. Hayes
	 Ellen Parker Burke, Secretary and
 Assistant
Treasurer
	 		 	Katherine M. Hayes, Treasurer
			
		 		 	INDEMNITOR
		 		 	YANKEE ENVIRONMENTAL SERVICES, LLC
			
	ATTEST OR WITNESS:	 		 	
			
	/s/ Ellen Parker Burke	 		 	/s/ Katherine M. Hayes
	 Ellen Parker Burke, Assistant
 Treasurer and
Assistant Secretary
	 		 	Katherine M. Hayes, Treasurer
			
		 		 	INDEMNITOR
		 		 	GREAT LAKES DREDGE & DOCK (BAHAMAS) LTD.
			
	ATTEST OR WITNESS:	 		 	
			
	/s/ Ellen Parker Burke	 		 	/s/ Katherine M. Hayes
	Ellen Parker Burke, Secretary	 		 	Katherine M. Hayes, Treasurer
			
	Accepted and agreed:	 		 	
			
		 		 	 SURETY
 ZURICH AMERICAN INSURANCE
COMPANY
 FIDELITY AND DEPOSIT COMPANY OF MARYLAND COLONIAL AMERICAN CASUALTY AND SURETY COMPANY, and

AMERICAN GUARANTEE AND LIABILITY INSURANCE COMPANY

			
		 		 	/s/ David L. McVicker
		 		 	Name and Title David L. McVicker Vice President

 (end of signatures) 

  
 6 

 EXHIBIT A 

LIST OF TRANSFERRED BONDS 
  

																									
	 Bond
Number
	 	 Issuing Carrier
	 	 Obligee
	 	 Type of Bond
	 	 Description
	 	Bond
Amount	 	 	Effective
Date	 	 	Expiration
Date	 	 	 Renewal Method
	 	 Completion Year

										
	09046739	 	Fidelity and Deposit Company of Maryland	 	Massachusetts Department of Environmental Protection	 	License & Permit	 	Hazardous Waste Transporters License	 	$	10,000.00	  	 	 	9/2/2011	  	 	 	9/1/2014	  	 	Dore to substitute its surety on renewal	 	GLDD until renewal, Dore renew
										
	09061807	 	Fidelity and Deposit Company of Maryland	 	Contractors State License Board	 	All Contractor’s License-Perf-Payt-Municipality	 	Contractor’s License Bond	 	$	12,500.00	  	 	 	10/15/2011	  	 	 	10/14/2014	  	 	Dore to substitute its surety on renewal	 	GLDD until renewal, Dore renew
										
	09061808	 	Fidelity and Deposit Company of Maryland	 	Boston Water and Sewer Commission	 	All Contractor’s License-Perf-Payt-Municipality	 	 sewer/drain/
 catch basin license bond
	 	$	20,000.00	  	 	 	10/20/2011	  	 	 	10/19/2014	  	 	Dore to substitute its surety on renewal	 	GLDD until renewal, Dore renew
										
	09061806	 	Fidelity and Deposit Company of Maryland	 	City of Cambridge	 	All Other License and Permit—Do Not Select Eff 1-1-05	 	Blanket Bond-Sidewalk	 	$	5,000.00	  	 	 	10/27/2011	  	 	 	10/26/2014	  	 	Dore to substitute its surety on renewal	 	GLDD until renewal, Dore renew
										
	09061846	 	Fidelity and Deposit Company of Maryland	 	City Of Boston	 	All Other License and Permit—Do Not Select Eff 1-1-05	 	Permit Bond to Demolish Buildings	 	$	500,000.00	  	 	 	11/19/2011	  	 	 	11/18/2014	  	 	Dore to substitute its surety on renewal	 	GLDD until renewal, Dore renew
										
	09061847	 	Fidelity and Deposit Company of Maryland	 	Contractor’s State License Board	 	All Contractors License-Perf-Payt-State—Standard	 	Bond for Qualifying Individual	 	$	12,500.00	  	 	 	11/25/2011	  	 	 	11/24/2014	  	 	Dore to substitute its surety on renewal	 	GLDD until renewal, Dore renew
										
	09062977	 	Fidelity and Deposit Company of Maryland	 	Town of Belmont	 	All Other License and Permit—Do Not Select Eff 1-1-05	 	Street Opening	 	$	5,000.00	  	 	 	3/1/2012	  	 	 	3/1/2015	  	 	Dore to substitute its surety on renewal	 	GLDD until renewal, Dore renew
										
	09078655	 	Fidelity and Deposit Company of Maryland	 	State of Florida Department of Business and Professional Regulation	 	License & Permit	 	Florida Contractor’s License Bond	 	$	100,000.00	  	 	 	4/10/2012	  	 	 	4/9/2014	  	 	Dore to substitute its surety on renewal	 	GLDD until renewal, Dore renew
										
	09078653	 	Fidelity and Deposit Company of Maryland	 	Francis M. Roache, Registrar of Deeds for County of Suffolk	 	Lien and Payment Bonds—Given at or near Commencement of Project—Private	 	The EDGE Apartments, 60-66 Brainerd Road, Allston, MA	 	$	208,900.00	  	 	 	4/20/2012	  	 	 	4/19/2014	  	 	Dore to substitute its surety on renewal	 	2014

  
 7 

																									
	 Bond
Number
	 	 Issuing Carrier
	 	 Obligee
	 	 Type of Bond
	 	 Description
	 	Bond
Amount	 	 	Effective
Date	 	 	Expiration
Date	 	 	 Renewal Method
	 	 Completion Year

										
	09078684	 	Fidelity and Deposit Company of Maryland	 	Local 282 Trust Funds	 	Miscellaneous	 	NY Local #282 Fringe Benefit Bond	 	$	20,000.00	  	 	 	6/7/2012	  	 	 	6/6/2014	  	 	New Bond Required	 	GLDD until renewal, Dore renew
										
	09078689	 	Fidelity and Deposit Company of Maryland	 	William P. O’Donnell, Registrar of Deeds for County of Norfolk	 	License & Permit	 	The EDGE Apartments, 60-66 Brainerd Road, Allston, MA	 	$	208,900.00	  	 	 	6/14/2012	  	 	 	6/13/2014	  	 	Dore to substitute its surety on renewal	 	GLDD until renewal, Dore renew
										
	09080008	 	Fidelity and Deposit Company of Maryland	 	Mason Tenders’ D.C. Welfare Fund, Pension Fund, Annuity fund	 	Union Bonds—Covers Payment of Fringe Benefits Only	 	Union Wage & Welfare	 	$	50,000.00	  	 	 	6/20/2012	  	 	 	6/19/2014	  	 	Dore to substitute its surety on renewal	 	GLDD until renewal, Dore renew
										
	09078683	 	Fidelity and Deposit Company of Maryland	 	Boston Water and Sew Commission	 	All Contractor’s License-Perf-Payt-Municipality	 	Contracting- Compliance	 	$	20,000.00	  	 	 	7/12/2012	  	 	 	7/11/2014	  	 	Dore to substitute its surety on renewal	 	GLDD until renewal, Dore renew
										
	09080012	 	Fidelity and Deposit Company of Maryland	 	Suffolk Construction Co. Inc.	 	Miscellaneous Contracts	 	120 Kingston	 	$	275,000.00	  	 	 	7/12/2012	  	 	 	7/11/2013	  	 	Unknown	 	2014
										
	09080014	 	Fidelity and Deposit Company of Maryland	 	City of Boston	 	License & Permit	 	MA City of Boston Bond for use of Streets	 	$	5,000.00	  	 	 	7/16/2012	  	 	 	7/15/2014	  	 	Dore to substitute its surety on renewal	 	GLDD until renewal, Dore renew
										
	09080015	 	Fidelity and Deposit Company of Maryland	 	Town of Watertown	 	All Other License and Permit—Do Not Select Eff 1-1-05	 	Sidewalk Occupancy	 	$	10,000.00	  	 	 	7/17/2012	  	 	 	7/17/2014	  	 	New Bond Required	 	GLDD until renewal, Dore renew
										
	09078664	 	Fidelity and Deposit Company of Maryland	 	Massachusetts Turnpike Authority, Fast Lane Service Center	 	Miscellaneous	 	Financial Guarantee-The Fast Lane Service Center	 	$	68,000.00	  	 	 	7/25/2012	  	 	 	7/24/2014	  	 	Dore to substitute its surety on renewal with Verification Certificate	 	GLDD until renewal, Dore renew
										
	09061845	 	Fidelity and Deposit Company of Maryland	 	City of New York	 	License & Permit	 	Street/Sidewalk obstruction, all Locations	 	$	50,000.00	  	 	 	12/9/2012	  	 	 	12/8/2014	  	 	Continuation Certificate	 	GLDD until renewal, Dore renew

  
 8 

																									
	 Bond
Number
	 	 Issuing Carrier
	 	 Obligee
	 	 Type of Bond
	 	 Description
	 	Bond
Amount	 	 	Effective
Date	 	 	Expiration
Date	 	 	 Renewal Method
	 	 Completion Year

										
	09110811	 	Fidelity and Deposit Company of Maryland	 	City of Columbus, Department of Building and Zoning Services	 	License & Permit	 	OH City of Columbus Contractor License—Registration Bond	 	$	25,000.00	  	 	 	1/9/2013	  	 	 	1/8/2015	  	 	Dore to substitute its surety on renewal	 	GLDD until renewal, Dore renew
										
	09110844	 	Fidelity and Deposit Company of Maryland	 	Town of Andover	 	Contract	 	#024/03—13/185 West Middle School Crawlspace Asbestos Abatement Andover, MA	 	$	184,976.00	  	 	 	4/2/2013	  	 	 	3/31/2014	  	 	Term Bond	 	2014
										
	09104755	 	Fidelity and Deposit Company of Maryland	 	Environmental Chemical Corporation	 	Contract	 	Portsmouth Naval Shipyard, Building 92 Repair, Kittery, ME	 	$	568,491.00	  	 	 	4/30/2013	  	 	 	4/29/2014	  	 	Term Bond	 	2014
										
	09104760	 	Fidelity and Deposit Company of Maryland	 	Florida Construction Industry License Board	 	License & Permit	 	State of FL—Business license for William S. Steckel	 	$	100,000.00	  	 	 	5/16/2013	  	 	 	5/15/2014	  	 	Dore to substitute its surety on renewal	 	GLDD until renewal, Dore renew
										
	09104769	 	Fidelity and Deposit Company of Maryland	 	University of Massachusetts-Lowell	 	Contract	 	CL13-HT-0041—Asbestos Remediation Services	 	$	669,640.00	  	 	 	5/20/2013	  	 	 	5/19/2014	  	 	Term Bond	 	2014
										
	09104773	 	Fidelity and Deposit Company of Maryland	 	Operating Engineers Local 825 Benefit Funds	 	Miscellaneous	 	Union Wage & Welfare	 	$	25,000.00	  	 	 	5/22/2013	  	 	 	5/21/2014	  	 	Continuation Certificate	 	GLDD until renewal, Dore renew
										
	09104785	 	Fidelity and Deposit Company of Maryland	 	City of Quincy	 	Miscellaneous Contracts	 	#13-270; Demolition of Old Quincy High School	 	$	687,000.00	  	 	 	6/14/2013	  	 	 	6/13/2014	  	 	Term Bond	 	2014
										
	09104813	 	Fidelity and Deposit Company of Maryland	 	City of Perth Amboy	 	All Other License and Permit—Do Not Select Eff 1-1-05	 	FD Dore to substitute its surety on renewal License or Permit Bond Demolition Permits	 	$	75,000.00	  	 	 	7/29/2013	  	 	 	7/28/2014	  	 	Dore to substitute its surety on renewal	 	GLDD until renewal, Dore renew

  
 9 

																									
	 Bond
Number
	 	 Issuing Carrier
	 	 Obligee
	 	 Type of Bond
	 	 Description
	 	Bond Amount	 	 	Effective
Date	 	 	Expiration
Date	 	 	 Renewal Method
	 	 Completion Year

										
	09104819	 	Fidelity and Deposit Company of Maryland	 	Skanska Koch Inc. Kiewit Infrastructure Co. (JV) DBA Skanska Kiewit JV. (S/K) JV	 	Contract	 	Bayonne Bridge—Replacement of Main Span Roadway & Approach Structures Contract Number: AKB-264.039 Job No. 012100	 	$	20,359,375.00	  	 	 	8/6/2013	  	 	 	8/5/2014	  	 	Term Bond	 	2015
										
	09104841	 	Fidelity and Deposit Company of Maryland	 	Halmar/A Servidone—B Anthony JV	 	Miscellaneous Contracts	 	SC-S1301.11.019 Contract D262091 Patroon Island Bridge I-90/I-787 Interchange Bridges C66-17, Interstate Route 504 Albany and Rensselaer County	 	$	766,487.00	  	 	 	8/22/2013	  	 	 	8/21/2014	  	 	Term Bond	 	2014
										
	09104854	 	Fidelity and Deposit Company of Maryland	 	City of Meriden	 	Contract	 	Demolition of 33,51, 53 South Colony Street Meriden, CT	 	$	565,000.00	  	 	 	9/12/2013	  	 	 	9/11/2014	  	 	Term Bond	 	2014
										
	09104864	 	Fidelity and Deposit Company of Maryland	 	Barletta Heavy/O&G, JV	 	Class A Contract	 	Fall River—Somerset: Route 79-I195, Interchange Reconstruction, over Route 138 (Davol Street) and Structural Repairs and Painting of the Braga Bridge	 	$	5,650,000.00	  	 	 	9/16/2013	  	 	 	9/15/2014	  	 	Continuation Certificate	 	2014
										
	09104876	 	Fidelity and Deposit Company of Maryland	 	Consigli Construction Co., Inc.	 	Class A Contract	 	MIT Bldg E-52, Cambridge, MA SC-1027-005	 	$	1,550,000.00	  	 	 	9/30/2013	  	 	 	9/29/2014	  	 	Continuation Certificate	 	2014

  
 10 

																									
	 Bond
Number
	 	 Issuing Carrier
	 	 Obligee
	 	 Type of Bond
	 	 Description
	 	Bond
Amount	 	 	Effective
Date	 	 	Expiration
Date	 	 	 Renewal Method
	 	 Completion Year

										
	09104890	 	Fidelity and Deposit Company of Maryland	 	Contractors State License Board	 	All Contractor’s License-Perf-Payt-Municipality	 	Contractor’s License Bond	 	$	12,500.00	  	 	 	10/3/2013	  	 	 	10/2/2014	  	 	Dore to substitute its surety on renewal	 	2014
										
	09104893	 	Fidelity and Deposit Company of Maryland	 	State of California	 	License & Permit	 	CA LLC Employee—Worker License Bond 13B-20 Rev 8-11	 	$	100,000.00	  	 	 	10/3/2013	  	 	 	10/2/2014	  	 	Dore to substitute its surety on renewal	 	GLDD until renewal, Dore renew
										
	09104889	 	Fidelity and Deposit Company of Maryland	 	Contractor’s State License Board	 	All Contractors License-Perf-Payt-State—Standard	 	Bond for Qualifying Individual	 	$	12,500.00	  	 	 	10/3/2013	  	 	 	10/2/2014	  	 	Dore to substitute its surety on renewal	 	GLDD until renewal, Dore renew
										
	09104882	 	Fidelity and Deposit Company of Maryland	 	O & G Industries, Inc.	 	Contract	 	#210-301 Orville H Platt High School, Meriden, CT	 	$	3,321,200.00	  	 	 	10/4/2013	  	 	 	10/3/2014	  	 	Term Bond	 	2014
										
	09104883	 	Fidelity and Deposit Company of Maryland	 	Dimeo Construction Company, Inc.	 	Contract	 	#4-4979 FM Global—Northwoods, Johnston, RI	 	$	4,684,631.00	  	 	 	10/4/2013	  	 	 	10/3/2014	  	 	Term Bond	 	2014
										
	09125428	 	Fidelity and Deposit Company of Maryland	 	State of Iowa, Division of Labor	 	License & Permit	 	IA Out-of-State Contractor Bond	 	$	25,000.00	  	 	 	12/12/2013	  	 	 	12/11/2014	  	 	Continuation Certificate	 	GLDD until renewal, Dore renew
										
	09125444	 	Fidelity and Deposit Company of Maryland	 	Tully Construction Co., Inc	 	Class A Contract	 	LGA -124.208; La Guardia Airport Abatement & Demolition of Hangars 2 & 4	 	$	4,500,000.00	  	 	 	1/29/2014	  	 	 	1/28/2015	  	 	Continuation Certificate	 	2014
										
	09125458	 	Fidelity and Deposit Company of Maryland	 	AQE, Inc.	 	Discharge Mechanic’s Lien Bond-DO NOT USE-Try 246 247 276 or 277	 	Williams College—Stetson Hall Renovation & Addition, 55 Sawyer Drive/26 Hopkins Hall Drive, Williamstown, MA—Asbestos Abatement	 	$	78,445.26	  	 	 	2/24/2014	  	 	 	2/24/2015	  	 	Dore to substitute its surety on renewal	 	2014

  
 11 

																									
	 Bond
Number
	 	 Issuing Carrier
	 	 Obligee
	 	 Type of Bond
	 	 Description
	 	Bond Amount	 	 	Effective
Date	 	 	Expiration
Date	 	 	 Renewal Method
	 	 Completion Year

										
	09125459	 	Fidelity and Deposit Company of Maryland	 	AQE, Inc.	 	Discharge Mechanic’s Lien Bond-DO NOT USE-Try 246 247 276 or 277	 	Williams College—Stetson Hall Renovation & Addition, 55 Sawyer Drive/26 Hopkins Hall Drive, Williamstown, MA—Selective Demolition	 	$	91,782.60	  	 	 	2/24/2014	  	 	 	2/24/2015	  	 	Dore to substitute its surety on renewal	 	2014
										
	09092447	 	Fidelity and Deposit Company of Maryland	 	City of Cambridge, Department of Public Works	 	All Other License and Permit—Do Not Select Eff 1-1-05	 	130 Bishop Allen Drive	 	$	5,000.00	  	 	 	12/3/2012	  	 	 	12/2/2014	  	 	Dore to substitute its surety on renewal	 	GLDD until renewal, Dore renew
										
	Total	 		 		 		 		 	$	45,637,827.86	  	 				 				 		 	

  
 12 

 EXHIBIT B 

Dore Indemnity Agreement (unexecuted version) 
  

					
	

 	  	General Indemnity Agreement	  	

 THIS GENERAL INDEMNITY AGREEMENT (“Agreement”), dated this 23rd day of April, 2014 by: 

Dore & Associates Contracting, Inc., 900 S. Harry Truman Parkway, Bay City, MI 48706, a Michigan Corporation 

North American Leasing, Inc., 900 S. Harry Truman Parkway, Bay City, MI 48706, a Michigan Corporation 

River Front, LLC, [Address], 900 S. Harry Truman Parkway, Bay City, MI 48706, a Michigan LLC 

NASDI, LLC, 1365 Main Street, Waltham, MA 02451, a Delaware LLC 

Yankee Environmental Services, LLC, 29 Esquire Road, Billerica, MA 01862, a Delaware LLC 

All new Indemnitors added to this Agreement by rider 
 (each an
“Indemnitor” and all of the above individually and collectively “Indemnitors”) in favor of ZURICH AMERICAN INSURANCE COMPANY and its subsidiaries, affiliates and associated companies in any jurisdiction, including but not limited
to FIDELITY AND DEPOSIT COMPANY OF MARYLAND, COLONIAL AMERICAN CASUALTY AND SURETY COMPANY, AMERICAN GUARANTEE AND LIABILITY INSURANCE COMPANY and ZURICH INSURANCE GROUP LTD, their respective successors and assigns (individually and collectively
“Surety”) with respect to any bond, undertaking, and/or obligation of suretyship or guarantee executed, provided or procured (herein “issued”) by Surety (whether as surety, co-surety, reinsurer or otherwise) in the name of or on
behalf of any Indemnitor, any Related Entity, any other entity on request in accordance with this Agreement, or any combination thereof, whether issued prior to or after the execution of this Agreement, and all renewals, extensions, modifications
and substitutions of bonds (collectively “Bonds” and each individually a “Bond”). This Agreement shall be liberally construed so as to fully protect, exonerate, indemnify and hold Surety harmless from all liability and Loss. 

As an inducement to Surety to issue or refrain from cancelling Bonds, Indemnitors represent and agree for themselves, their heirs, executors, administrators,
successors and assigns, jointly and severally, as follows: 
 1. PREMIUMS: Indemnitors shall promptly pay all premiums and charges of Surety for
Bonds, at the current rate charged by Surety, until Surety has been provided satisfactory evidence, in its sole discretion, that it has been fully released and/or discharged from liability under such Bonds. 

2. INDEMNITY: Indemnitors shall exonerate, indemnify, and hold Surety harmless from any and all liability and Loss, sustained or incurred, arising from
or related to: (a) any Bond, (b) any Claim, (c) any Indemnitor failing to timely and completely perform or comply with this Agreement, (d) Surety enforcing this Agreement or (e) any act of Surety to protect or procure any of
Surety’s rights, protect or preserve any of Surety’s interests, or to avoid, or lessen Surety’s liability or alleged liability. The liability of Indemnitors to Surety under this Agreement includes all Claims made on Surety, all
payments made, Loss incurred, and all actions taken by Surety under the Good Faith belief that Surety is, would be or was liable for the amounts paid or the actions taken, or that it was necessary or expedient to make such payments or take such
actions, whether or not such liability, necessity or expediency existed. Indemnitors shall promptly, upon demand, make payment to Surety as soon as liability or Loss exists, whether or not Surety has made any payment. An itemized statement of Loss,
sworn to by any officer of Surety, or the voucher or other evidence of any payment, shall be prima facie evidence of the fact, amount and extent of the liability of Indemnitors for such Loss. Indemnitors shall promptly, upon demand, procure
the full and complete discharge of Surety from all Bonds and all liability in connection with such Bonds. If Indemnitors are unable to obtain discharge of any or all such Bonds within the time demanded, Indemnitors shall promptly deposit with Surety
an amount of money that Surety determines is sufficient to collateralize or pay any outstanding bonded obligations. Concurrently with the execution of this Agreement, NASDI, LLC (“NASDI”) and Yankee Environmental Services, LLC (Yankee) are
executing a Rider to General Agreement of Indemnity by which Surety is releasing NASDI and Yankee from that certain Agreement of Indemnity, dated September 7, 2011 and executed by Great Lakes Dredge & Dock Corporation and other
entities as Contractors and Indemnitors thereunder (the “GLDD Indemnity”), and transferring the indemnity obligations for NASDI and Yankee with respect to certain Transferred Bonds (as defined in this provision) from the GLDD Indemnity to
this Agreement. “Transferred Bonds” means the Bonds and bonded obligations identified on the attached EXHIBIT A, which Exhibit is incorporated into this Agreement by reference. This Agreement is not intended to, and shall not, alter any of
the terms and/or conditions of the Transferred Bonds. 
 3. SURETY’S RIGHT TO PERFORM, SETTLE AND/OR MODIFY: Surety shall have the absolute and
unconditional right and is authorized but not required to: (a) adjust, pay, perform, decline to perform, compromise, settle, deny, litigate or otherwise resolve any Claim and/or any claim, counterclaim, defense or setoff held by or made against
any Indemnitor, Principal or other entity and/or to take any action to protect any rights of Surety or to preserve or protect Surety’s interests, or to avoid or lessen any alleged liability (hereinafter “Settlement”); and
(b) modify, consent to or decline to consent to 

  
 13 

 
modification of any Bond and/or Bonded Contract, and/or to take, consent to or decline to consent to any assignment (hereinafter “Modification”). Any Settlement and/or Modification by
Surety shall be final, binding and conclusive upon Indemnitors. Indemnitors shall remain bound under this Agreement for all Loss even though any such Settlement or Modification by Surety does or might substantially increase the liability of
Indemnitors. 
 4. PLACE IN FUNDS: Indemnitors agree to promptly deposit with Surety, on demand, an amount of money that Surety determines is
sufficient to fund any liability or Loss. Such funds may be used by Surety to pay Loss or may be held by Surety as collateral against potential future Loss. Any remaining funds held by Surety after payment of all sums due to Surety under this
Agreement shall be returned upon the complete release and/or discharge of Surety’s liability under all Bonds. 
 5. PLEDGE AND ASSIGNMENT OF
COLLATERAL: Indemnitors pledge, assign, transfer and set over to Surety the Collateral, as collateral to secure the obligations in this Agreement, whether incurred before or after the execution of this Agreement, including a license to use the
Collateral, without cost, to perform or discharge Surety’s obligations under any Bond or Bonded Contract. This pledge and assignment becomes effective on the date of this Agreement, or the earliest date allowable by law. 

6. TRUST FUNDS: All sums due, to become due, or received by any Indemnitor or Principal for or on account of any Bonded Contract are trust funds in
which Surety has an interest as a beneficiary of the trust whether in the possession of such Indemnitor or Principal or another. Such trust funds shall be held in trust for the benefit and payment of all obligations or Loss for which Surety may be
liable under any Bond. Surety has the right, but not the obligation, to require that trust funds be placed in a dedicated trust fund account. This Agreement and declaration constitute notice of such trust. 

7. UNIFORM COMMERCIAL CODE: This Agreement constitutes a security agreement to Surety in accordance with the Uniform Commercial Code or similar statute
in any jurisdiction. Surety may file a photocopy or other reproduction of this Agreement as a financing statement or otherwise take any action or file any statement or documents to perfect the rights and interests granted in the Collateral or trust
funds at any time. 
 8. TAKEOVER: If an Event of Default occurs, Surety shall have the right, in its sole discretion, and is authorized to take
possession of any part or all of the work, materials and equipment under any Bonded Contract and any other materials or equipment which Surety deems necessary or proper to perform such Bonded Contract, and to perform or arrange for the performance
of such Bonded Contract. 
 9. ADVANCES AND FINANCING: Surety is authorized to guarantee loans, to advance or lend money to any entity which Surety
may see fit for the purpose of facilitating performance of obligations under any Bond or Bonded Contract. Indemnitors shall indemnify Surety for all such loans or advances and all Loss incurred by Surety relating to such loans and advances. Any
failure to use the loans or advances, in whole or in part, for performance of obligations under such Bonds or Bonded Contracts shall not be a defense to Indemnitors’ duty to indemnify Surety for such loans or advances. Surety has no obligation
to provide financing or other support to any Principal or Indemnitor. 
 10. BONDS FOR OTHER ENTITIES: Indemnitors’ obligations under this
Agreement shall also apply to any Bond Surety issues for or on behalf of any Related Entity. “Related Entity” means: (a) any present or future, directly or indirectly owned subsidiary or affiliate of any Indemnitor; (b) any legal
entity in which any Indemnitor has or acquires an ownership interest; and (c) any joint ventures, consortiums, teaming arrangements or any other business collaboration or economic enterprise (“Joint Venture”) in which any Indemnitor
is or was a member at the time the Bond was issued. Indemnitors’ obligations under this Agreement shall also apply to any Bond Surety issues for or on behalf of any entity other than a Related Entity, on the written request of any Indemnitor.

 11. FINANCIAL STATEMENTS, BOOKS AND RECORDS: Indemnitors shall promptly provide Surety with any and all information and documentation concerning
the business or financial situation of any Indemnitor or any subsidiary, affiliate or Related Entity of any Indemnitor, as requested by Surety. Indemnitors shall furnish on demand, and Surety shall have the right to access, examine and copy the
books, records and accounts of Indemnitors and of any entity under the control of any Indemnitor, at no cost to Surety. Indemnitors authorize any entity in which funds of any Indemnitor may be deposited to furnish to Surety a statement of the amount
of such deposits as of the date requested. Indemnitors authorize any and all lenders, obligees, subcontractors, suppliers, accountants, other insurers, and other persons or entities to furnish to Surety any information requested by Surety, including
but not limited to the performance of obligations under any Bond or Bonded Contract and payments related to any such Bond or Bonded Contract. 
 12.
ISSUANCE OF BONDS: Surety does not guarantee the issuance or compliance of any Bond or any obligee’s acceptance of any Bond issued. Surety has an absolute right to decline to issue or continue or renew any Bond and to cancel any Bond. If
Surety issues a bid or proposal Bond or a written commitment to issue any Bond (each a “Bond Commitment”), Surety has an absolute right to decline to issue any Bond that may be required in connection with any award made under the proposal
for which the Bond Commitment was given. 

  
 14 

 13. WAIVER OF NOTICE: Indemnitors waive notice of the issuance or cancellation of any Bond, any Settlement
or Modification, and any act, fact or information concerning or affecting the rights and liabilities of Surety or the rights or liabilities of Indemnitors under the Bonds or this Agreement, notwithstanding any notice of any kind to which Principal
and/or Indemnitors might otherwise have been or be entitled, and notwithstanding any defenses they might have been or be entitled to assert. 
 14. OTHER
SURETIES AS BENEFICIARIES: If Surety procures the execution of any Bond by other sureties, or executes any Bond with co-sureties, or reinsures any portion of any Bond with reinsuring sureties, then all the terms and conditions of this Agreement
shall inure to the benefit of such other sureties, co-sureties and/or reinsuring sureties, including the right to bring an action for enforcement of this Agreement. Surety may furnish copies of any and all underwriting and Claim documentation to
reinsurers and co-sureties, including statements, agreements, financial statements, and any information which Surety now has or may obtain in the future concerning (a) Principals and/or Indemnitors, (b) Related Entities of Principals
and/or Indemnitors, and (c) other entities for which any Bond is requested pursuant to paragraph 10. 
 15. SURETY’S ADDITIONAL RIGHTS: This
Agreement is in addition to and not in lieu of all other agreements of indemnity and any and all rights, powers, and remedies that Surety may have or acquire against Indemnitors or any other person or entity, whether by agreement, law or otherwise.
Indemnitors acknowledge and agree that other indemnity, collateral, property and/or security may be required by Surety with respect to Bonds issued under this Agreement. Indemnitors shall remain bound under the terms of this Agreement even though
Surety may from time to time (before or after the date of this Agreement): (a) accept, modify or release other agreements of indemnity with respect to any Bond; (b) accept, modify the indemnity of, or release any Indemnitor or any other
person or entity; or (c) accept, release or subordinate any rights to collateral, real property, personal property or security. Indemnitors’ obligations to Surety shall not be waived or reduced by any claim, setoff, defense, or other right
or cause of action which Indemnitors and/or Surety may hold against any person or entity or which may be asserted by any Principal, Indemnitor or any other person or entity arising from or related to any Bonded Contract, any Bond, this Agreement,
other agreements, by law or otherwise. Surety is subrogated to all rights, Claims, funds and receivables related to any Bonded Contract. Surety has the right to offset Loss on any Bonded Contract against proceeds, funds, real property or personal
property under any other Bonded Contract or otherwise available to Surety under this Agreement. Surety’s forbearance or failure to act to enforce any right shall not waive or diminish any of its rights, which rights may be enforced at any time
in Surety’s sole discretion. 
 16. SURETY’S RIGHT TO SPECIFIC PERFORMANCE: Indemnitors acknowledge that the failure of Indemnitors,
collectively or individually, to perform or comply with any provision of this Agreement shall cause irreparable harm to Surety for which Surety has no adequate remedy at law. Indemnitors agree that Surety shall be entitled to injunctive relief
and/or specific performance, and Indemnitors waive any claims or defenses to the contrary. 
 17. POWER OF ATTORNEY: Indemnitors irrevocably nominate,
constitute, appoint and designate Surety, and any persons designated by Surety, as their attorney-in-fact, with the right, but not the obligation, to exercise all of the rights of Indemnitors pledged, assigned, transferred and set over to Surety in
this Agreement, including, in the name of Indemnitors to make, execute, and deliver any and all assignments or documents deemed necessary and proper by Surety in order to exercise its rights, powers and remedies under this Agreement. Indemnitors
ratify and confirm all acts taken by Surety and its designees as such attorney-in-fact and agree to protect and hold harmless Surety and its designees for all such acts. 

18. JOINT AND SEVERAL LIABILITY: Indemnitors are jointly and severally liable to Surety under this Agreement. Surety may enforce this Agreement against
any Indemnitor without joining any other Indemnitor, person or entity. 
 19. CONTRIBUTION: Indemnitors waive and subordinate all rights of indemnity,
subrogation and contribution against each other and/or any Principal until all obligations to Surety under this Agreement, at law or in equity, have been satisfied in full. 

20. NOTICE TO SURETY: Indemnitors shall notify Surety as soon as any Indemnitor becomes aware of the happening of any Event of Default. This notice, and
any other notice to Surety, shall be addressed as follows: Zurich Surety, Red Brook Corporate Center, 600 Red Brook Blvd., 4th Floor, Owings Mills, Maryland 21117, Attention: Vice President, Contract Surety. 

  
 15 

 21. LAWSUITS AND JURISDICTION: Separate lawsuits may be brought under this Agreement as causes of action
accrue, and the bringing of any lawsuit or the recovery of any judgment on any cause of action shall not prejudice or bar the bringing of other lawsuits, on the same or other causes of action, whether arising before or after any other lawsuit or
cause of action. In any legal proceeding brought by or against Surety that in any way relates to this Agreement, each Indemnitor irrevocably and unconditionally submits to the jurisdiction, at Surety’s sole option, of the Federal, state and
local courts in which (a) any Indemnitor resides or has property, (b) any bonded obligation arises or is performed, in whole or in part, or (c) any action may be brought against Surety. Indemnitors submit to the jurisdiction of such
courts and waive and agree not to assert that they are not subject to the jurisdiction of any such court or that the jurisdiction and/or venue is in an inconvenient forum or otherwise improper. 

22. GOVERNING LAW FOR BONDED CONTRACTS OUTSIDE THE UNITED STATES: Indemnitors agree that as to any legal action or proceeding related to any Bond issued
in connection with any Bonded Contract to be performed outside the United States and its territories, this Agreement shall be governed by and interpreted under the laws of the State of New York, without regard to principles of conflicts of laws.

 23. EXECUTION AND CHANGES: This Agreement may be executed in counterparts, all of which taken together shall constitute the Agreement. This
Agreement shall be effective and immediately binding as to each Indemnitor when that Indemnitor executes this Agreement, regardless of whether any other party has executed the Agreement or fails to execute this Agreement. This Agreement shall only
be changed or modified in writing. 
 24. SEVERABILITY: If any provision of this Agreement is found to be void or unenforceable as to an Indemnitor,
the remainder of this Agreement shall nevertheless remain enforceable as to that Indemnitor; and the entire Agreement shall remain enforceable as to all other Indemnitors. 

25. TERMINATION: Indemnitors’ obligations and Surety’s rights and remedies under this Agreement are continuing. Indemnitors acknowledge that
their obligations under this Agreement remain for Bonds executed for entities that may be sold, dissolved, or otherwise disposed of in the future. This Agreement remains in effect until terminated and released by Surety. Any Indemnitor may terminate
their participation in this Agreement with respect to future Bonds by sending written notice of termination to Surety at the address in Paragraph 20. Such termination shall be effective twenty (20) days from Surety’s receipt of the notice
(“Effective Date”) and shall be effective only as to the Indemnitor providing such written notice. The notice of termination shall not terminate, modify, bar or discharge such notifying Indemnitor’s obligations to Surety under this
Agreement for: (a) Bonds issued prior to the Effective Date; (b) Bonds issued after the Effective Date where such Bonds are issued with respect to a Bond Commitment issued prior to the Effective Date; and (c) any Collateral or
interest provided under this Agreement. The execution of any subsequent agreements of indemnity in favor of Surety by any Indemnitor shall not be construed as a novation, and this Agreement may only be terminated as provided herein. 

26. JURY WAIVER: Indemnitors hereby knowingly and voluntarily waive and covenant that they will not assert any right to trial by jury in respect to any
legal proceeding arising out of this Agreement. 
 27. REPRESENTATIONS AND WARRANTIES: Indemnitors each represent and warrant the following:
(a) Each Indemnitor has a substantial, material, and/or beneficial interest in one or more Indemnitors or Principals obtaining Bonds or in Surety refraining from canceling any such Bond; (b) Each Indemnitor has the full power and authority
to execute and deliver this Agreement and to perform all obligations in this Agreement; (c) All information provided to Surety by each Indemnitor prior to and after the execution of this Agreement is true, accurate and complete as of the time
provided; and (d) Each right, power and remedy given to Surety, under any provision of this Agreement or otherwise, forms a material part of Surety’s consideration for Bonds. 

28. WAIVER OF EXEMPTIONS: Indemnitors waive all rights to claim any of their property, including their respective homesteads, as exempt from any levy,
execution, sale or other legal process by Surety, unless such waiver is prohibited by law. 
 29. TRANSFERRED BONDS: By way of clarification,
Indemnitors hereby assume liability for and performance of the Transferred Bonds. The obligations of Indemnitors to Surety under this Agreement include those arising from or relating to the Transferred Bonds and any breach or default asserted under
said Bonds or the underlying contracts, and/or the enforcement of this Agreement. Indemnitors acknowledge that the Surety may require or retain or release other or additional agreements, indemnity and/or security with respect to the Transferred
Bonds, and Surety may exercise its rights and remedies with respect to this Agreement or any other agreement, indemnity or security, at any time and in any order in Surety’s full and absolute discretion. 

 

	30.	DEFINITIONS: 

 Bonded Contract means any contract or other obligation referred to in any Bond or
secured by any Bond. 

  
 16 

 Change in Control means any Principal or Indemnitor, without Surety’s prior written consent:
(a) assigning or selling any Bonded Contract; (b) undergoing a change in the beneficial ownership, directly or indirectly, of thirty percent (30%) or more of its voting stock (measured by voting power rather than number of shares) in
one or more transactions, or any change in stock that results in a change of majority ownership; or (c) ceasing or threatening to cease to carry on business, or having any resolution passed or order made for its winding-up, liquidation or
dissolution. 
 Claim or Claims means any notice, claim, demand, defense, counterclaim, setoff, lawsuit or proceeding or circumstance which
may constitute, lead to or result in Loss, liability, or asserted liability in connection with any Bond, any Bonded Contract, or this Agreement. 

Collateral means all right, title and interest of one or more Indemnitors in the following, whenever acquired or arising: (a) all Bonded
Contracts; (b) all goods (including equipment, machinery, tools and materials), which are now, or may hereafter be, about or upon the site or sites of any and all of the contractual work referred to in the Bonds, or elsewhere, including
materials purchased for or chargeable to any and all contracts referred to in the Transferred Bonds, materials which may be in the process of construction, in storage elsewhere, or in transportation to any and all of said sites, and equipment which
may be necessary or proper to perform any contractual work referred to in the Bonds, general intangibles, and inventory, to the extent not subject to a prior perfected security interest; (c) all subcontracts and purchase orders arising under
any Bonded Contract, and all surety bonds supporting such subcontracts and purchase orders; (d) all sums which are or may become payable in connection with any Bonded Contract and all other contracts in which any Indemnitor has an interest;
(e) all intellectual property (including proprietary software) necessary or required to perform any Bonded Contract; (f) any facilities or plants necessary or required to perform any Bonded Contract; and (g) any real or personal
property, the improvement of which is secured by any Bond. 
 Event of Default means any one or more of the following: (a) failure to timely
perform or comply with any Bonded Contract or failure to timely pay invoices, bills or other indebtedness or to discharge liabilities under any Bonded Contract or Bond; (b) Breach of any Bond or declaration of default under any Bonded Contract
(whether admitted or contested); (c) Surety setting any reserve against Loss or incurring Loss; (d) breach of or failure to timely comply with this Agreement; (e) any Principal or Indemnitor becoming the subject of any bankruptcy,
insolvency, receivership, creditor assignment or trusteeship (whether voluntary or involuntary and whether insolvent or not); (f) any occurrence which deprives or impairs any Principal, Indemnitor and/or Surety of the use of any Collateral;
(g) any individual Indemnitor becoming legally incompetent, imprisoned, convicted of a felony, or disappearing and being unable to be located; (h) a Change in Control; (i) any default, however described, which occurs under any
document relating to the financial indebtedness of any Principal or Indemnitor, as a result of which that financial indebtedness is or becomes capable of being rendered prematurely due and payable; or (j) any representation by any Principal or
Indemnitor to Surety which was materially false or misleading when made. 
 Good Faith means, with respect to any act, exercise of discretion or
omission by Surety, an absence of dishonesty, evil intent and actual malice toward Principal and Indemnitors. 
 Loss means all premiums due to
Surety and any and all liability, loss, Claims, damages, court costs and expenses, attorneys’ fees (including those of Surety), consultant fees, and all other costs and expenses, including but not limited to any additional or extra-contractual
damages arising from Surety’s Settlement of any Claim. Pre-judgment and post-judgment interest shall accrue from the date of any payment made by Surety with respect to any of the foregoing at the maximum default rate permitted by law. 

Principal means any person or entity whose obligation is guaranteed by a Bond. 

SIGNATURE PAGE(S) TO FOLLOW 

(The remainder of this page is intentionally left blank) 

  
 17 

 SIGNATURE INSTRUCTIONS 

1. All signatures should be notarized and dated. 

2. If the signer is a Corporation, an officer on the operational side (i.e. President, CEO, COO) and an officer on the finance side (i.e.
Secretary, CFO, Treasurer) should sign and the Corporation should attach its seal. 
 3. If one signer is signing in two different capacities
(i.e. President and Secretary), then list both titles in the signature block and notary acknowledgement. 
 4. If the signer is an individual
(personal) Indemnitor, each Indemnitor should sign and date their signature and provide all of the required information. Each signature should be witnessed and notarized. 

By signing below, each Indemnitor affirms to Surety that they have read this General Indemnity Agreement carefully and understand their
obligations as an Indemnitor. If the Indemnitor is a business entity, each signer executing this Agreement on behalf of such Indemnitor represents and warrants that he, she or it holds the office or position shown and that he, she or it is duly
authorized by Indemnitor to execute this Agreement on behalf of Indemnitor and to bind Indemnitor to all of the terms and conditions of this Agreement. 
  

													
	 INDEMNITOR:
	 	(2 signature format)	 		 		 	
	 Dore & Associates Contracting, Inc.

900 S. Harry Truman Parkway, Bay City, MI 48706
	 		 		 		 	(SEAL)
						
	 By:
	 	  
	 		 		 		 	
		 	[Name of Signer #1]	 		 		 		 	
		 	As [Title] of Dore & Associates Contracting, Inc.	 		 		 		 	
							
		 		 		 		 		 		 	LAST 4 DIGITS OF TIN:
							
		 	Date:	 	_______________________, 20        	 		 		 		 	
						
	 By:
	 	  
	 		 		 		 	________________
		 	[Name of Signer #2]	 		 		 		 	
		 	As [Title] of Dore & Associates Contracting, Inc.	 		 		 		 	
							
		 	Date:	 	_______________________, 20        	 		 		 		 	

  

							
	 NOTARIAL ACKNOWLEDGEMENT

 
 STATE OF:
                                         
                                COUNTY
OF:                                        
                                

	
	 The following instrument was acknowledged before me this
             day of                         ,
20            by:
  

[name of signer#1]
                                         
            as [title of signer#1]
                                         
               
 of [name of entity]
                                         
                   , (“Entity”), on behalf of the Entity. He/She is personally known to me or has produced [form of identification]
                                         
                        as identification.
  

and by
  

[name of signer #2]
                                         
                as [title of signer #2]
                                         
            of the Entity on behalf of the Entity. He/She is personally known to me or has produced [form of identification]
                                         
        as identification.

				
		  	My commission expires:	 	Notary Seal:	  	
				
	 _____________________
	  	                                     
           ,	 		  	
	 Notary Public Signature
	  	20            	 		  	
			
	 Printed Name
                                    
	 		  	

 (The remainder of this page is intentionally left blank) 

  
 18 

													
	 INDEMNITOR:
	 	(2 signature format)	 		 		 	
	 North American Leasing, Inc.

[Address]
	 		 		 		 	(SEAL)
						
	 By:
	 	  
	 		 		 		 	
		 	[Name of Signer #1]	 		 		 		 	
		 	As [Title] of North American Leasing, Inc.	 		 		 		 	
							
		 		 		 		 		 		 	LAST 4 DIGITS OF TIN:
							
		 	Date:	 	_______________________, 20        	 		 		 		 	
						
	 By:
	 	  
	 		 		 		 	________________
		 	[Name of Signer #2]	 		 		 		 	
		 	As [Title] of North American Leasing, Inc.	 		 		 		 	
							
		 	Date:	 	_______________________, 20        	 		 		 		 	

  

							
	 NOTARIAL ACKNOWLEDGEMENT

 
 STATE OF:
                                         
                                COUNTY
OF:                                        
                                

	
	 The following instrument was acknowledged before me this
             day of                         ,
20            by:
  

[name of signer#1]
                                         
            as [title of signer#1]
                                         
               
 of [name of entity]
                                         
                   , (“Entity”), on behalf of the Entity. He/She is personally known to me or has produced [form of identification]
                                         
                        as identification.
  

and by
  

[name of signer #2]
                                         
                as [title of signer #2]
                                         
            of the Entity on behalf of the Entity. He/She is personally known to me or has produced [form of identification]
                                         
        as identification.
  

		  	My commission expires:	 	Notary Seal:	  	
				
	 _______________________
	  	                                     
           ,	 		  	
	 Notary Public Signature
	  	20            	 		  	
			
	 Printed Name
                                    
	 		  	

 (The remainder of this page is intentionally left blank) 

  
 19 

													
	
INDEMNITOR:                      
                                      (2 
signature format)
	 		 		 		 	
	 River Front, LLC

[Address]
	 		 		 		 	(SEAL)
					
	 By:
	 	  
	 		 		 	
		 	[Name of Signer #1]	 		 		 		 	
		 	As [Title] of North American Leasing, Inc.	 		 		 		 	
							
		 		 		 		 		 		 	LAST 4 DIGITS OF TIN:
						
		 	Date:	 	_______________________, 20         	 		 		 	
					
	 By:
	 	  
	 		 		 	 
		 	[Name of Signer #2]	 		 		 		 	
		 	As [Title] of North American Leasing, Inc.	 		 		 		 	
							
		 	Date:	 	_______________________, 20        	 		 		 		 	

  

							
	 NOTARIAL ACKNOWLEDGEMENT

 
 STATE OF:
                                         
                                COUNTY
OF:                                        
                                

	
	 The following instrument was acknowledged before me this
             day of                         ,
20             by:
  

[name of signer#1]
                                         
            as [title of signer#1]
                                         
               
 of [name of entity]
                                         
                   , (“Entity”), on behalf of the Entity. He/She is personally known to me or has produced [form of identification]
                                         
                        as identification.
  

and by
  

[name of signer #2]
                                         
                as [title of signer #2]
                                         
            of the Entity on behalf of the Entity. He/She is personally known to me or has produced [form of identification]
                                         
        as identification.

				
		  	My commission expires:	 	Notary Seal:                	  	
				
		  	  
	 	,	  	
	 Notary Public Signature
	  	20            	 		  	
				
	 Printed Name
                            
	  		 		  	

 (The remainder of this page is intentionally left blank) 

  
 20 

													
	
INDEMNITOR:                      
                                      (2 
signature format)
	 		 		 		 	
	 NASDI, LLC

[Address]
	 		 		 		 	(SEAL)
					
	 By:
	 	  
	 		 		 	
		 	[Name of Signer #1]	 		 		 		 	
		 	As [Title] of North American Leasing, Inc.	 		 		 		 	
		 		 		 		 		 		 	LAST 4 DIGITS OF TIN:
							
		 	Date:	 	_______________________, 20        	 		 		 		 	
					
	 By:
	 	  
	 		 		 	 
		 	[Name of Signer #2]	 		 		 		 	
		 	As [Title] of North American Leasing, Inc.	 		 		 		 	
							
		 	Date:	 	_______________________, 20        	 		 		 		 	

  

							
	 NOTARIAL ACKNOWLEDGEMENT

 
 STATE OF:
                                         
                                COUNTY
OF:                                        
                                

	
	 The following instrument was acknowledged before me this
             day of                         ,
20             by:
  

[name of signer#1]
                                         
            as [title of signer#1]
                                         
               
 of [name of entity]
                                         
                   , (“Entity”), on behalf of the Entity. He/She is personally known to me or has produced [form of identification]
                                         
                       as identification.
  

and by
  

[name of signer #2]
                                         
                as [title of signer #2]
                                         
            of the Entity on behalf of the Entity. He/She is personally known to me or has produced [form of identification]
                                         
        as identification.

				
		  	My commission expires:	 	Notary Seal:                	  	
				
		  	  
	 	,	  	
	 Notary Public Signature
	  	20            	 		  	
				
	 Printed Name
                            
	  		 		  	

 (The remainder of this page is intentionally left blank) 

  
 21 

													
	
INDEMNITOR:                      
                                      (2 
signature format)
	 		 		 		 	
	 Yankee Environmental Services, LLC

[Address]
	 		 		 		 	(SEAL)
					
	 By:
	 	  
	 		 		 	
		 	[Name of Signer #1]	 		 		 		 	
		 	As [Title] of North American Leasing, Inc.	 		 		 		 	
		 		 		 		 		 		 	LAST 4 DIGITS OF TIN:
							
		 	Date:	 	_______________________, 20        	 		 		 		 	
					
	 By:
	 	  
	 		 		 	 
		 	[Name of Signer #2]	 		 		 		 	
		 	As [Title] of North American Leasing, Inc.	 		 		 		 	
							
		 	Date:	 	_______________________, 20        	 		 		 		 	

  

							
	 NOTARIAL ACKNOWLEDGEMENT

 
 STATE OF:
                                         
                                COUNTY
OF:                                        
                                

	
	 The following instrument was acknowledged before me this
             day of                         ,
20             by:
  

[name of signer#1]
                                         
            as [title of signer#1]
                                         
               
 of [name of entity]
                                         
                   , (“Entity”), on behalf of the Entity. He/She is personally known to me or has produced [form of identification]
                                         
                        as identification.
  

and by
  

[name of signer #2]
                                         
                as [title of signer #2]
                                         
            of the Entity on behalf of the Entity. He/She is personally known to me or has produced [form of identification]
                                         
        as identification.

				
		  	My commission expires:	 	Notary Seal:                	  	
				
		  	  
	 	,	  	
	 Notary Public Signature
	  	20            	 		  	
				
	 Printed Name
                            
	  		 		  	

  
 22 

 EXHIBIT C 

GLDD Guarantee for Transferred Bonds (unexecuted version) 

 

			
	

	    	 Guarantee and Indemnity Agreement

With respect to NASDI/ Yankee Transferred Bonds

 THIS GUARANTEE AND INDEMNITY AGREEMENT WITH RESPECT TO NASDI/ YANKEE TRANSFERRED BONDS (“Agreement”), dated this
            day of             , 2014 by Great Lakes Dredge and Dock Corporation, a Delaware corporation, as
Guarantor (“Guarantor” or “GLDD”) in favor of ZURICH AMERICAN INSURANCE COMPANY and its subsidiaries, affiliates and associated companies in any jurisdiction, including but not limited to FIDELITY AND DEPOSIT COMPANY OF
MARYLAND, COLONIAL AMERICAN CASUALTY AND SURETY COMPANY, AMERICAN GUARANTEE AND LIABILITY INSURANCE COMPANY and ZURICH INSURANCE GROUP LTD, their respective successors and assigns (individually and collectively “Surety”) with respect to
the transferred bonds set forth on Exhibit A, List of Transferred Bonds, which is attached to this Agreement and incorporated by reference, including all renewals, extensions, modifications, replacements or substitutions thereof (collectively, the
“Transferred Bonds” and each individually a “Transferred Bond”). This Agreement shall be liberally construed so as to fully guarantee, and exonerate, indemnify and hold Surety harmless from, all liability and Loss with respect to
the Transferred Bonds. 
 Guarantor has requested that Surety consent to Guarantor’s sale of NASDI, LLC (“NASDI”) and Yankee Environmental
Services, LLC (“Yankee”), and that GLDD Indemnitors’ (as defined below) liability under the current GLDD Agreement (as defined below) be released or transferred with respect to the Transferred Bonds; and 

Surety is willing to consent to the sale of NASDI and Yankee, and to consent to the transfer of GLDD Indemnitors’ obligations with respect to the
Transferred Bonds from the current GLDD Agreement to this Agreement in accordance with the terms of this Agreement, on the condition that Guarantor enter into this Agreement and the GLDD Transferring Release to transfer GLDD Indemnitors’
liability for the Transferred Bonds from the GLDD Agreement to this Agreement. 
 As an inducement to Surety to issue or refrain from cancelling Transferred
Bonds, to accept the GLDD Transferring Release, and to accept this Agreement in lieu of the GLDD Agreement with respect to GLDD Indemnitors’ obligations for the Transferred Bonds, Guarantor represents and agrees for itself, its heirs,
executors, administrators, successors and assigns, jointly and severally, as follows: 
 1. TERM OF GUARANTEE AND INDEMNITY: This Agreement remains in
force until Surety has been provided satisfactory evidence, in its sole discretion, that Surety has been fully released and/or discharged from liability under all Transferred Bonds and has been paid in full for all Loss arising from or related to
the Transferred Bonds. Guarantor hereby guarantees all liability for and performance of Transferred Bonds under the terms of this Agreement and the GLDD Transferring Release. The obligations of Guarantor to Surety under this Agreement include those
arising from or relating to the Transferred Bonds and any breach or default asserted under said Transferred Bonds or the underlying Bonded Contracts, and/or the enforcement of this Agreement or the Dore Agreement. Guarantor acknowledges that Surety
may require or retain or release other or additional agreements, indemnity and/or security with respect to the Transferred Bonds, including but not limited to the Dore Agreement, and Surety may exercise its rights and remedies with respect to this
Agreement, the Dore Agreement, or any other agreement, indemnity or security, at any time and in any order in Surety’s full and absolute discretion. 

2. GUARANTEE AND INDEMNITY: Guarantor hereby guarantees the full payment and performance of, and shall exonerate, indemnify, and hold Surety harmless
from, any and all liability and Loss, sustained or incurred, arising from or related to the following: (a) any Transferred Bond, (b) any Claim, (c) Guarantor failing to timely and completely perform or comply with this Agreement, or
any of the parties to the Dore Agreement failing to timely and completely perform or comply with the Dore Agreement with respect to any Transferred Bond, (d) Surety enforcing this Agreement or the Dore Agreement with respect to any Transferred
Bond or (e) any act of Surety to protect or procure any of Surety’s rights, protect or preserve any of Surety’s interests, or to avoid, or lessen Surety’s liability or alleged liability, all with respect to any Transferred Bond.
The liability of Guarantor to Surety under this Agreement includes all Claims made on Surety, all payments made, Loss incurred, and all actions taken by Surety with respect to any Transferred Bond under the Good Faith belief that Surety is, would be
or was liable for the amounts paid or the actions taken, or that it was necessary or expedient to make such payments or take such actions, whether or not such liability, necessity or expediency existed. Guarantor shall promptly, upon demand, make
payment to Surety as soon as liability or Loss exists, whether or not Surety has made any payment. An itemized statement of Loss, sworn to by any officer of Surety, or the voucher or other evidence of any payment, shall be prima facie
evidence of the fact, amount and extent of the liability of Guarantor for such Loss. This Guarantee and Indemnity includes all Loss arising from or related to the Transferred Bonds, including all Loss which may arise under the Dore Agreement with
respect to the Transferred Bonds. 

  
 23 

 3. SURETY’S RIGHT TO PERFORM, SETTLE AND/OR MODIFY: Surety shall have the absolute and unconditional
right and is authorized but not required to: (a) adjust, pay, perform, decline to perform, compromise, settle, deny, litigate or otherwise resolve any Claim and/or any claim, counterclaim, defense or setoff held by or made against Guarantor,
any of the parties to the Dore Agreement, any Principal or other entity and/or to take any action to protect any rights of Surety or to preserve or protect Surety’s interests, or to avoid or lessen any alleged liability (hereinafter
“Settlement”); and (b) modify, consent to or decline to consent to modification of any Transferred Bond and/or Bonded Contract, and/or to take, consent to or decline to consent to any assignment (hereinafter “Modification”).
Any Settlement and/or Modification by Surety shall be final, binding and conclusive upon Guarantor. Guarantor shall remain bound under this Agreement for all Loss even though any such Settlement or Modification by Surety does or might substantially
increase the liability of Guarantor. 
 4. PLACE SURETY IN FUNDS: Should an Event of Default occur, or upon determination by Surety, in its sole and
absolute discretion, that potential liability exists under any Transferred Bond (regardless of whether liability has been established or whether Surety, Guarantor may have defenses to all or any portion of any claim asserted under any Transferred
Bond), Guarantor shall, upon demand, deposit with Surety cash or other collateral acceptable to Surety in an amount determined by Surety, in its sole discretion, to be sufficient to discharge any claim made against or potential liability of Surety
on any Transferred Bond or under this Agreement. Surety shall not be required to post a reserve prior to or as a condition of Guarantor’s obligation to deposit collateral. This sum may be used by Surety to pay such claim or be held by Surety as
collateral against any loss on any Transferred Bonds or under this Agreement. Any remaining sums deposited with Surety after payment of any and all sums due to Surety under this Agreement or otherwise shall be returned to Guarantor upon the complete
release and/or discharge of Surety’s obligations and liability under all Transferred Bonds. The Surety’s demand for collateral shall be sufficient if sent by registered or certified mail, by facsimile transmission, or by personal service
to Guarantor at the addresses stated herein, or at the address last known to the Surety, regardless of whether actually received. Guarantor acknowledges that the failure of Guarantor to deposit collateral with the Surety, immediately upon demand,
shall cause irreparable harm to the Surety for which the Surety has no adequate remedy at law. Guarantor agrees that the Surety shall be entitled to injunctive relief for specific performance of the obligation to deposit with the Surety the sum
demanded as collateral and waive any claims or defenses to the contrary. 
 5. UNIFORM COMMERCIAL CODE: This Agreement shall constitute a Security
Agreement to the Surety and also a Financing Statement, both in accordance with the provisions of the Uniform Commercial Code of every jurisdiction wherein such Code is in effect, and may be so used by the Surety, without in any way abrogating,
restricting or limiting the rights of the Surety under this Agreement or under law or in equity. 
 6. DISCHARGE: Guarantor shall promptly, upon
demand, procure the full and complete discharge of Surety from all Transferred Bonds and all liability in connection with such Transferred Bonds. If Guarantor is unable to obtain discharge of any or all such Transferred Bonds within the time
demanded, Guarantor shall promptly deposit with Surety an amount of money that Surety determines is sufficient to satisfy any liability or Loss with respect to any Transferred Bonds. 

7. SURETY’S RIGHT TO SPECIFIC PERFORMANCE: Guarantor acknowledges that the failure of Guarantor to perform or comply with any provision of this
Agreement shall cause irreparable harm to Surety for which Surety has no adequate remedy at law. Guarantor agrees that Surety shall be entitled to injunctive relief and/or specific performance, and Guarantor waives any claims or defenses to the
contrary. 
 8. WAIVER OF NOTICE: Guarantor waives notice of the issuance, cancellation, renewal, replacement or substitution of any Transferred Bond,
any Settlement or Modification, and any act, fact or information concerning or affecting the rights and liabilities of Surety or the rights or liabilities of Guarantor under the Transferred Bonds or this Agreement, notwithstanding any notice of any
kind to which Principal or Guarantor or others might otherwise have been or be entitled, and notwithstanding any defenses they might have been or be entitled to assert. 

9. OTHER SURETIES AS BENEFICIARIES: If Surety procures the execution of any Transferred Bond by other sureties, or executes any Transferred Bond with
co-sureties, or reinsures any portion of any Transferred Bond with reinsuring sureties, then all the terms and conditions of this Agreement shall inure to the benefit of such other sureties, co-sureties and/or reinsuring sureties, including the
right to bring an action for enforcement of this Agreement. 
 10. SURETY’S ADDITIONAL RIGHTS: This Agreement is in addition to and not in lieu
of the GLDD Agreement (subject to the terms of the GLDD Transferring Release), the Dore Agreement and all other agreements of indemnity and any and all rights, powers, and remedies that Surety may have or acquire against Guarantor or any other
person or entity, including but not limited to the parties to the Dore Agreement, whether by agreement, law or otherwise. Surety’s forbearance or failure to act to enforce any right shall not waive or diminish any of its rights, which rights
may be enforced at any time in Surety’s sole discretion. Guarantor waives and subordinates all rights of indemnity, subrogation and contribution against any party to the Dore Agreement and/or any Principal until all obligations to Surety under
this Agreement, at law or in equity, have been satisfied in full. Surety may enforce this Agreement against Guarantor in its sole discretion at any time and in whatever manner Surety sees fit, without joining any other person or entity, whether that
person or entity is a party to the Dore Agreement or otherwise. 

  
 24 

 11. LAWSUITS AND JURISDICTION: Separate lawsuits may be brought under this Agreement as causes of action
accrue, and the bringing of any lawsuit or the recovery of any judgment on any cause of action shall not prejudice or bar the bringing of other lawsuits, on the same or other causes of action, whether arising before or after any other lawsuit or
cause of action. In any legal proceeding brought by or against Surety that in any way relates to this Agreement, Guarantor irrevocably and unconditionally submits to the jurisdiction, at Surety’s sole option, of the Federal, state and local
courts in which (a) Guarantor resides or has property, (b) any bonded obligation arises or is performed, in whole or in part, or (c) any action may be brought against Surety. Guarantor submits to the jurisdiction of such courts and
waive and agree not to assert that it is not subject to the jurisdiction of any such court or that the jurisdiction and/or venue is in an inconvenient forum or otherwise improper. 

12. GOVERNING LAW: This Agreement shall be governed by and interpreted under the laws of the State of New York, without regard to principles of
conflicts of laws. 
 13. EXECUTION AND CHANGES: This Agreement shall be effective and immediately binding as to Guarantor when Guarantor executes
this Agreement, regardless of whether any other party has executed this Agreement or the Dore Agreement or fails to execute this Agreement or the Dore Agreement. This Agreement shall only be changed or modified in writing. 

14. JURY WAIVER: Guarantor hereby knowingly and voluntarily waives and covenants that it will not assert any right to trial by jury in respect to any
legal proceeding arising out of this Agreement. 
 15. REPRESENTATIONS AND WARRANTIES: Guarantor represents and warrants the following:
(a) Guarantor has a substantial, material, and/or beneficial interest in one or more Principals obtaining or maintaining the Transferred Bonds or in Surety refraining from canceling, renewing, extending, modifying, replacing or substituting any
such Transferred Bond; (b) Guarantor has the full power and authority to execute and deliver this Agreement and to perform all obligations in this Agreement; (c) All information provided to Surety by Guarantor prior to and after the
execution of this Agreement is true, accurate and complete in all material respects as of the time provided; and (d) Each right, power and remedy given to Surety, under any provision of this Agreement or otherwise, forms a material part of
Surety’s consideration for Transferred Bonds. 
 16. LIMIT OF INDEMNITY AND GUARANTEE: Guarantor’s liability under this Agreement is limited to
the sum of TWENTY-FIVE MILLION AND NO/100 DOLLARS ($25,000,000). 
  

	17.	DEFINITIONS: 

 Bonded Contract means any contract or other obligation referred to in any
Transferred Bond or secured by any Transferred Bond. 
 Change in Control has the meaning provided in the GLDD Agreement. 

Claim or Claims means any notice, claim, demand, defense, counterclaim, setoff, lawsuit or proceeding or circumstance which may constitute, lead
to or result in Loss, liability, or asserted liability in connection with any Transferred Bond, any Bonded Contract, this Agreement or the Dore Agreement (except to the extent not related to any Transferred Bond). 

Dore Agreement means the General Indemnity Agreement executed by Dore & Associates Contracting, Inc. (“Dore”) and others, dated
April 18, 2014. For clarity, this Agreement covers only the obligations of Dore and others with respect to the Transferred Bonds and the bonded obligations underlying such Transferred Bonds, and does not cover any other bond which Surety may
issue for Dore or others which is not related to the Transferred Bonds. 
 Event of Default means any one or more of the following: (a) any
abandonment, forfeiture, termination, default or breach of any Bonded Contract or any breach of any Transferred Bond; (b) receipt by Surety of any Claims under any Transferred Bond or declaration of default under any Transferred Bond;
(c) breach of or failure to timely comply with this Agreement, or the Dore Agreement with respect to any Transferred Bond; (d) Guarantor becoming the subject of any bankruptcy, insolvency, receivership, creditor assignment or trusteeship
(whether voluntary or involuntary and whether insolvent or not); (e) a Change in Control; (f) any default, however described, which occurs under any document relating to the financial indebtedness of Guarantor, as a result of which that
financial indebtedness is or becomes capable of being rendered prematurely due and payable; or (g) any representation by Guarantor to Surety which was materially false or misleading when made. 

  
 25 

 GLDD Agreement means the General Agreement of Indemnity executed by GLDD and the other GLDD Indemnitors,
dated September 7, 2011, as subsequently modified, amended, supplemented or replaced, including but not limited to the Rider dated June 4, 2012, and all underlying and related agreements and modifications of agreements, including the
Equipment Utilization Agreement dated June 4, 2012 and the Lender-Surety Agreement dated June 4, 2012. For clarity, this Agreement covers only the obligations of Guarantor and the other GLDD Indemnitors with respect to the Transferred
Bonds and the Bonded Contracts and obligations underlying such Transferred Bonds, and does not cover any other bond which Surety may issue for Guarantor or any other GLDD Indemnitor which is not a Transferred Bond (the “Non-Transferred
Bonds”), and with respect to those Non-Transferred Bonds, the GLDD Agreement remains in full force and effect. 
 GLDD Indemnitors means
Guarantor and the other “Indemnitors” and “Contractors” party to the GLDD Agreement. 
 GLDD Transferring Release means the Second
Rider to General Agreement of Indemnity with respect to NASDI/Yankee Transferred Bonds dated as of April 18, 2014 among Surety, Guarantor and the other GLDD Indemnitors, which is executed concurrently with this Agreement and which applies to
the GLDD Agreement. 
 Good Faith means, with respect to any act, exercise of discretion or omission by Surety, an absence of bad faith, willful
misconduct, dishonesty, evil intent and actual malice toward Guarantor. 
 Loss means, with respect to any Transferred Bond, all premiums due to
Surety and any and all liability, loss, Claims, damages, court costs and expenses, attorneys’ fees (including those of Surety), consultant fees, and all other costs and expenses, including but not limited to any additional or extra-contractual
damages arising from Surety’s Settlement of any Claim. Pre-judgment and post-judgment interest shall accrue from the date of any payment made by Surety with respect to any of the foregoing at the maximum default rate permitted by law. 

Principal means any person or entity whose obligation is guaranteed by a Transferred Bond. 

SIGNATURE PAGE(S) TO FOLLOW 

(The remainder of this page is intentionally left blank) 

  
 26 

 SIGNATURE INSTRUCTIONS 

1. All signatures should be notarized and dated. 

2. If the signer is a Corporation, an officer on the operational side (i.e. President, CEO, COO) and an officer on the finance side (i.e. Secretary, CFO,
Treasurer) should sign and the Corporation should attach its seal. 
 3. If one signer is signing in two different capacities (i.e. President and Secretary),
then list both titles in the signature block and notary acknowledgement. 
 4. If the signer is an individual (personal) Indemnitor, each Indemnitor should
sign and date their signature and provide all of the required information. Each signature should be witnessed and notarized. 
 By signing below,
Guarantor affirms to Surety that it has read this Guarantee and Indemnity Agreement carefully and understands its obligations as a Guarantor. Each signer executing this Agreement on behalf of Guarantor represents and warrants solely in their
capacity as an officer of Guarantor and not individually that he or she holds the office or position shown and that he or she is duly authorized by Guarantor to execute this Agreement on behalf of Guarantor and to bind Guarantor to all of the terms
and conditions of this Agreement. 
 GUARANTOR: 

Great Lakes Dredge & Dock Corporation 
 2122 York Road,
Oak Brook, IL 60523 
  

			
		
	By:	 	  

	Name:	 	Katherine M. Hayes
	Title:	 	Vice President, Corporate Controller and Assistant Secretary
		
	By:	 	  

	Name:	 	Richard Roman
	Title:	 	Treasurer

  

							
	 NOTARIAL ACKNOWLEDGEMENT

 
 STATE
OF:                                        
                                     COUNTY
OF:                                        
                                    

	
	 The following instrument was acknowledged before me this
             day of             , 2014 by:
  

Katherine M. Hayes as Vice President, Corporate Controller and Assistant Secretary of Great Lakes Dredge & Dock Corporation, (“Entity”), on
behalf of the Entity. She is personally known to me or has produced [form of identification]
                                         
           as identification.
  

and by
  

Richard Roman as Treasurer of the Entity on behalf of the Entity. He is personally known to me or has produced [form of identification]
                                         
                                    as identification.

		  	My commission expires:	 		  	Notary Seal:                                   
 
				
	 	  	      
	 	,	  	
	 Notary Public Signature
  

Printed Name
                                         
       
	  	20        	 		  	

 (The remainder of this page is intentionally left blank) 

  
 27EX-10.1

 Exhibit 10.1 
  

 
 AMENDMENT NO. 1 

to 
 CONTRACT OF
EMPLOYMENT 
 between 

(1) FOSTER WHEELER MANAGEMENT LIMITED 

and 
 (2) STEPHEN
ROSTRON                                        
      

 THIS DEED is made on March 3, 2014 

BETWEEN 
  

	(1)	FOSTER WHEELER MANAGEMENT LIMITED incorporated and registered in England and Wales with company number 05344191 whose registered office is at Shinfield Park, Shinfield, Reading, Berkshire RG2 9FW (the
“Company”); and 

  

	(2)	STEPHEN ROSTRON of 358 Lichfield Road, Four Oaks, Birmingham, West Midlands, B74 4BH (“you”) 

BACKGROUND 
  

	(A)	The Company entered into a Contract of Employment with you which was prepared on 24 April 2013 and effective on and from 27 August 2013 (the “Contract”). 

 

	(B)	It has been agreed between the Company and you that the terms of the Contract should be amended as set out in clause 3. 

  

	(C)	You and the Company have agreed that the amendment in clause 3 shall have effect on and from 27 August 2013. 

THIS DEED PROVIDES THAT 
  

	1.0	DEFINITIONS 

  

	 	1.1	Terms that are not specifically defined in this Deed shall have the definition provided in the Contract. 

  

	 	1.2	The headings in this Deed are inserted for convenience only and shall not affect its construction. 

  

	2.	CONSIDERATION 

 For good and valuable consideration the receipt and sufficiency of which
are hereby acknowledged, and in further consideration of the mutual promises, covenants and undertakings contained in the Contract, the parties agree that the Contract is amended effective on and from 27 August 2013 as set out in clause 3
below. 
  

	3.	AMENDMENT TO SIGN-ON EQUITY TERMS 

 The paragraph in section 3.1 of the Contract which
reads as follows: 
 “Furthermore, if your employment is terminated by the Company without notice before the relevant vesting dates
listed above, the outstanding Replacement RSUs will vest in full on your Termination Date (as defined below).” 
 is hereby deleted in
its entirety and replaced with the following paragraph: 

  
 Page 2 of 3

 “Furthermore, if before the relevant vesting dates listed above, your employment is
terminated (i) without Cause by the Company or (ii) due to your Resignation for Good Reason or (iii) due to your Resignation for Good Reason During a Change in Control Period, ((i), (ii) and (iii) in this paragraph shall
have the same meaning as set out in the Foster Wheeler AG Senior Executive Severance Plan (as amended from time to time)), the outstanding Replacement RSUs will vest in full upon the termination of your employment.” 

 

	3.	CHANGES TO THE CONTRACT 

 Other than as expressly set forth in this Deed, the Contract
remains unchanged. 
  

	4.	COUNTERPARTS 

 This Deed may be executed in any number of counterparts, each of which,
when executed and delivered, shall be an original, and all the counterparts together shall constitute one and the same instrument. 
 EXECUTED by the
parties as a DEED 
  

							
	 EXECUTED as a DEED by

FOSTER WHEELER
 MANAGEMENT LIMITED

acting by KENT MASTERS,
 a director, in the presence of:
	  	 )
 )

)
 )

)
	  	  
 /s/ J. Kent Masters

				
		 	Witness Signature:	  		  	/s/ Geraldine Pamphlett
				
		 	Name:	  		  	Geraldine Pamphlett
				
		 	Address:	  		  	 2 Northcote
 Andover Road

Oakley, Hampshire RG23 7HD

			
	 SIGNED as a DEED by

STEPHEN ROSTRON in the
 presence of:
	  	 )
 )

)
	  	  
 /s/ Stephen Rostron

				
		 	Witness Signature:	  		  	/s/ Geraldine Pamphlett
				
		 	Name:	  		  	Geraldine Pamphlett
				
		 	Address:	  		  	 2 Northcote
 Andover Road

Oakley, Hampshire RG23 7HD

  
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