July 24, 2023

1200 New Jersey Ave., SE 

Washington, D.C. 20590 

In Reply Refer To: 

HSST-1/B-372 

Nina Ertel 

Pennsylvania Department of Transportation 

400 North St., 7th Floor 

Harrisburg, Pennsylvania 17120 

USA 

Dear Ms. Ertel: 

We received your correspondence of November 10, 2021 requesting issuance of a 

reimbursement eligibility letter under the Federal-aid highway program for the roadside safety 

system, device, design, product, or hardware (collectively “device”) described below. This letter 

is assigned Federal Highway Administration (FHWA) control number B-372. 

ELIGIBILITY LETTERS

The FHWA issues Federal-aid reimbursement eligibility letters for new roadside safety devices 

that are crash tested in accordance with the industry standard of the American Association of 

State Highway and Transportation Officials (AASHTO) Manual for Assessing Safety Hardware 

(MASH). 

FHWA, the Department of Transportation, and the United States (government) do not regulate 

roadside safety devices, crash test facilities, or the manufacturing industry. Issuance of 

eligibility letters is discretionary and provided only as a service to the states. FHWA may, at its 

discretion, decline to issue, revise, or rescind an eligibility letter. Eligibility letters are only 

issued by the FHWA headquarters Office of Safety. 

Eligibility letters are issued only as notice to the states that a device is eligible for reimbursement 

under the Federal-aid highway program. They do not establish approval or certification for any 

other purpose. Issuance of an eligibility letter is not a prerequisite or requirement for state 

transportation agencies seeking to use Federal-aid funds for roadside safety devices. State 

agencies may use a device for which an eligibility letter has not been issued and seek Federal-aid 

reimbursement. 

FEDERAL-AID REIMBURSEMENT

The request for issuance of this letter certified the device was crash tested in accordance with the 

industry standard of AASHTO’s MASH. This eligibility letter is based on that certification and 

the material offered in support of its issuance. The device described below is eligible for 

reimbursement under the Federal-aid highway program. 

1 
 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Name of system: PennDOT 50-inch Tall Precast F-shape Concrete Barrier Keyed in 4-

inches of Asphalt 

Type of system: Longitudinal Barrier 

Test Level: Test Level 4 

Testing conducted by: Texas A&M Transportation Institute 

Date of request: November 10, 2021 

Information about the device, including material such as the eligibility request, crash test reports, 

drawings, or images are included in one or more attachment(s) to this letter. 

In accordance with FHWA's Memo "Federal-aid Reimbursement Eligibility Process for Safety 

Hardware Devices" dated November 12, 2015, FHWA will make note of any reported damage to 

a test vehicle's fuel tank, oil pan, or other feature that might serve as a surrogate of the fuel tank. 

AASHTO's MASH states "Although not a specific factor in assessing test results, integrity of a 

test vehicle's fuel tank is a potential concern. It is preferable that the fuel tank remains intact and 

not be punctured. Damage or rupture of the fuel tank, oil pan, or other feature that might serve as 

a surrogate of the fuel tank should be reported". A test report included in the submittal 

documents states that there was damage to the right fuel tank in Test 4-12. 

Eligibility letter B-372 is inapplicable to devices, optional equipment, alternate materials, or 

other features that were not crash tested in accordance with AASHTO’s MASH. 

This letter is issued only for the subject device as crash tested under AASHTO’s MASH. Later 

modification(s) of the device are not eligible for Federal-aid reimbursement under this letter. 

Notice of later modification(s) should be given to transportation agencies, facility owners, and 

operators (collectively “agencies”). 

Agencies should be provided appropriate information about the device’s design, installation, 

maintenance, materials, and mechanical properties. 

Issuance of this letter is discretionary, and it may be revised or rescinded at FHWA’s discretion. 

This letter is not a determination of compliance with the Manual on Uniform Traffic Control 

Devices for Streets and Highways (MUTCD) or ownership of any intellectual property rights. 

This eligibility letter is not a determination by the government that a crash involving the subject 

device will result in any particular outcome. It is limited to only the device’s eligibility for 

Federal-aid reimbursement. 

INTELLECTUAL PROPERTY 

Issuance of this eligibility letter does not convey property rights of any sort nor any exclusive 

privilege. This letter is not authorization or consent by the government for the use, manufacture, 

or sale of any patented or proprietary system, device, design, product, or hardware for which the 

requester is not the patent owner. Eligibility letters are not an expression of any view, position, 

or determination by the government as to the validity, scope, or ownership of any intellectual 

property rights to a specific device. These letters do not grant, impute, suggest, or otherwise 

2 
 

 

 

establish any ownership, distribution, or licensing rights to the requester. The government 

expresses no opinion about the intellectual property rights relating to any device for which this or 

any other eligibility letter is issued. 

PUBLIC DISCLOSURE 

To prevent any misunderstanding, and as discussed above, this eligibility letter is assigned 

FHWA control number B-372. It should only be reproduced in full with its attachment(s). This 

letter and the material offered by the requester supporting its issuance is public information. All 

eligibility letters and supporting material are subject to public disclosure under the Freedom of 

Information Act (FOIA). Eligibility letters are available to the public at 

https://safety.fhwa.dot.gov/roadway_dept/countermeasures/reduce_crash_severity/. 

If you have any questions please contact Aimee Zhang at Aimee.Zhang@dot.gov. 

Sincerely, 

Robert Ritter 

Director, Office of Safety Technologies 

Office of Safety 

Enclosures 

3 
 Version 10.0 (05/16) 

Page 1 of 6 

Request for Federal Aid Reimbursement Eligibility

of Highway Safety Hardware 

Submitter

 Date of Request: November 10, 2021 New Resubmission 

Name: Nina Ertel, P.E. | {{March 6, 2023 Rev #2 to Orig'l Request }} 

Company: Pennsylvania Department of Transportation 

Address: 400 North St., 7th Floor, Harrisburg, Pennsylvania 17120 

Country: USA

 To: Michael S. Griffith, Director 

FHWA, Office of Safety Technologies 

I request the following devices be considered eligible for reimbursement under the Federal-aid 

highway program. 

Device & Testing Criterion - Enter from right to left starting with Test Level ! - ! - ! 

System Type Submission Type Device Name / Variant Testing Criterion Test 

Level 

'B': Rigid/Semi-Rigid Barriers 

(Roadside, Median, Bridge 

Railings) 

Physical Crash Testing 

Engineering Analysis 

PennDOT 50-inch Tall 

Precast F-shape 

Concrete Barrier Keyed 

in 4-inches of Asphalt 

AASHTO MASH TL4 

By submitting this request for review and evaluation by the Federal Highway Administration, I certify 

that the product(s) was (were) tested in conformity with the AASHTO Manual for Assessing Safety 

Hardware and that the evaluation results meet the appropriate evaluation criteria in the MASH. 

Individual or Organization responsible for the product: 

Contact Name: Nina Ertel, P.E. Same as Submitter 

Company Name: Pennsylvania Department of Transportation Same as Submitter 

Address: 400 North St., 7th Floor, Harrisburg, Pennsylvania 17120 Same as Submitter 

Country: USA Same as Submitter 

Enter below all disclosures of financial interests as required by the FHWA `Federal-Aid Reimbursement 

Eligibility Process for Safety Hardware Devices' document. 

Texas A&M Transportation Institute (TTI) was contracted by Gannett Fleming, Inc. to perform full-scale crash 

testing of the PennDOT 50-inch Tall Precast F-shape Concrete Barrier Keyed in Asphalt. There are no shared 

financial interests in the PennDOT 50-inch Tall Precast F-shape Concrete Barrier Keyed in Asphalt by TTI, or 

between PennDOT and TTI, or between Gannett Fleming, Inc. and TTI other than the costs involved in the actual 

crash tests and reports for this submission to FHWA. 

TTI 611851 -1-2-3 &-4 
 Version 10.0 (05/16) 

Page 2 of 6 

PRODUCT DESCRIPTION 

New Hardware or Modification to 

Significant Modification Existing Hardware 

The test installation was comprised of 8 precast, steel reinforced concrete barrier segments keyed in 4-inches 

of asphalt. Each barrier segment was 12 ft long, and adjacent barrier segments were connected to each other 

with drop-in pins through loops that were cast into the barriers. There was an approximately 2 inch space 

between the barriers, for a total length of approximately 97 ft-2 inches. Each barrier was 54 inches tall, 5 inches 

wide at top, and 24 inches wide at bottom. A 4-inch thick layer of asphalt, 9 ft wide, was placed on the traffic 

and field sides of the barriers, resulting in a 50-inch height from grade to the top of the barriers. 

CRASH TESTING 

By signature below, the Engineer affiliated with the testing laboratory, agrees in support of this submission that 

all of the critical and relevant crash tests for this device listed above were conducted to meet the MASH test 

criteria. The Engineer has determined that no other crash tests are necessary to determine the device meets 

the MASH criteria. 

Engineer Name: D. Lance Bullard, Jr. P.E. 

D. Lance Bullard, Jr. Digitally signed by D. Lance Bullard, Jr. Engineer Signature: Date: 2021.11.18 08:53:03 -06'00' 

Address: 1254 Avenue A, Bldg. 7091, Bryan, Texas 77807 Same as Submitter 

Country: USA Same as Submitter

 A brief description of each crash test and its result: 
 Version 10.0 (05/16) 

Page 3 of 6 

Required Test 

Number 

Narrative 

Description 

Evaluation 

Results 

4-10 (1100C) 

===This 4-10 Test in 4-inches of Asphalt=== 

Test 4-10 involves an 1100C vehicle 

impacting the test article at a target impact 

speed of 62 mi/h and target angle of 25°. 

The target CIP for the right corner of the 

front bumper was 3.6 ft upstream of the 

centerline of the joint between segs 4 and 5. 

The results of the re-test conducted on 

November 13, 2020, are found in TTI Test 

Report No. 611851-4. The test vehicle was 

traveling at a speed of 61.7 mi/h as it 

contacted the PennDOT 50-inch Tall Precast 

F-shape Concrete Barrier Keyed in 4 inches 

of Asphalt 3.5 ft upstream of the centerline 

of the joint between barriers 4 and 5 and at 

an impact angle of 25.2°. After loss of 

contact with the barrier, the vehicle came to 

rest 194 ft downstream of the impact point 

and 23 ft toward the field side. 

PennDOT 50-inch Tall Precast F-shape 

Concrete Barrier Keyed in 4 inches of 

Asphalt contained and redirected the 1100C 

vehicle. The vehicle did not penetrate, 

underride, or override the installation. The 

vehicle exited within the exit box criteria 

defined in MASH. 

Maximum dynamic deflection of the barrier 

during the test was 1.6 inches at the top of 

the barrier. No permanent deformation was 

observed. Working width was 24.0 inches. 

No detached elements, fragments, or other 

debris were present to penetrate, or to 

show potential for penetrating, the 

occupant compartment, or to present 

undue hazard for others in the area. 

The 1100C vehicle remained upright during 

and after the collision event. Maximum roll 

and pitch angles were 7° and 10°, 

respectively. 

Longitudinal OIV was 20.3 ft/s and lateral 

OIV was 30.2 ft/s. Maximum longitudinal 

occupant ridedown acceleration was 3.1 g, 

and maximum lateral occupant ridedown 

acceleration was 7.8 g. Occupant risk 

factors were within the allowable limits 

specified in MASH. 

Maximum exterior crush to the vehicle was 

9.0 inches in the side plane at the right front 

corner at bumper height. Maximum 

occupant compartment deformation was 

2.5 inches in the right front kick panel 

laterally across the front of the inside of the 

vehicle. 

The PennDOT 50-inch Tall Precast F-shape 

Concrete Barrier Keyed in 4-inches of 

Asphalt performed acceptably for MASH 

Test 4-10. 

PASS 
 Version 10.0 (05/16) 

Page 4 of 6 

Required Test 

Number 

Narrative 

Description 

Evaluation 

Results 

4-11 (2270P) 

===This 4-11 Test in 2-inches of Asphalt=== 

Test 4-11 involves a 2270P vehicle 

impacting the test article at a target impact 

speed of 62 mi/h and target angle of 25°. 

The target CIP for the right corner of the 

front bumper was 4.3 ft upstream of the 

centerline of the jnt between seg 9 and 10. 

The results of the test conducted on July 17, 

2019, are found in TTI Test Report No. 

611851-2. The test vehicle was traveling at 

a speed of 63.4 mi/h as it contacted the 

PennDOT 50-inch Tall Precast F-shape 

Concrete Barrier Keyed in 2 inches of 

Asphalt 4.2 ft upstream of the centerline of 

the joint between segments 9 and 10 and at 

an impact angle of 24.5°. After loss of 

contact with the barrier, the vehicle came to 

rest 187 ft downstream of the impact point 

and 7 ft toward the field side. 

The PennDOT 50-inch Tall Precast F-shape 

Concrete Barrier Keyed in 2 inches of 

Asphalt contained and redirected the 2270P 

vehicle. The vehicle did not penetrate, 

underride, or override the installation. The 

vehicle exited within the exit box criteria 

defined in MASH. 

Maximum dynamic deflection during the 

test was 13.2 inches at the top of the barrier. 

Maximum permanent deformation was 4.0 

inches. Working width was 26.75 inches. 

Although some gouging of the concrete 

occurred on the barrier face, no detached 

elements, fragments, or other debris were 

present to penetrate, or to show potential 

for penetrating, the occupant 

compartment, or to present undue hazard 

for others in the area. 

The 2270P vehicle remained upright during 

and after the collision event. Maximum roll 

angle was 13° and max pitch was 16°. 

Longitudinal OIV was 19.4 ft/s and lateral 

OIV was 23.3 ft/s. Maximum longitudinal 

occupant ridedown acceleration was 6.4 g 

and maximum lateral occupant ridedown 

acceleration was 6.2 g. Occupant risk 

factors were within the preferred limits 

specified in MASH. 

Maximum exterior crush to the vehicle was 

16.0 inches in the side plane at the right 

front corner at bumper height. Maximum 

occupant compartment deformation was 

3.0 inch in the right side firewall area. 

The PennDOT 50-inch Tall Precast F-shape 

Concrete Barrier Keyed in 2-inches of 

Asphalt performed acceptably for MASH 

Test 4-11. 

PASS 
 Version 10.0 (05/16) 

Page 5 of 6 

4-12 (10000S) 

===This 4-12 Test in 2-inches of Asphalt=== 

Test 4-12 involves a 10000S vehicle 

impacting the test article at a target impact 

speed of 56 mi/h and target angle of 15°. 

The target CIP for the right corner of the 

front bumper was 5.0 ft upstream of 

centerline of the joint between segs 4 and 5. 

The results of the test conducted on July 15, 

2019, are found in TTI Test Report No. 

611851-3. The test vehicle was traveling at 

a speed of 56.6 mi/h as it contacted the 

PennDOT 50-inch Tall Precast F-shape 

Concrete Barrier Keyed in 2 inches of 

Asphalt 4.4 ft upstream of the centerline of 

the joint between segments 4 and 5 and at 

an impact angle of 14.8°. After loss of 

contact with the barrier, the vehicle came to 

rest 280 ft downstream of the impact point 

and 2 ft toward the traffic side. 

The PennDOT 50-inch Tall Precast F-shape 

Concrete Barrier Keyed in 2 inches of 

Asphalt contained and redirected the 

10000S vehicle. The vehicle did not 

penetrate, underride, or override the 

installation. The vehicle exited within the 

exit box criteria defined in MASH. 

Maximum dynamic deflection during the 

test was 21.8 inches at the top of the barrier. 

Maximum permanent deformation was 6.75 

inches. Working width was 69.3 inches. 

No detached elements, fragments, or other 

debris were present to penetrate or to show 

potential for penetrating the occupant 

compartment, or to present undue hazard 

for others in the area. 

The 10000S vehicle remained upright 

during and after the collision event. 

Maximum roll and pitch angles were 36° 

and 10°, respectively. 

Longitudinal OIV was 5.6 ft/s, and lateral OIV 

was 13.1 ft/s. Maximum longitudinal 

occupant ridedown acceleration was 4.7 g, 

and maximum lateral occupant ridedown 

acceleration was 12.6 g. 

Maximum exterior crush to the vehicle was 

14.0 inches in the side plane at the right 

front corner at bumper height. Maximum 

occupant compartment deformation was 

4.0 inches in the right side firewall/floor pan 

area. 

The PennDOT 50-inch Tall Precast F-shape 

Concrete Barrier Keyed in 2-inches of 

Asphalt performed acceptably for MASH 

Test 4-12. 

PASS 

4-20 (1100C) Test 4-20 for transition is not applicable for 

this median barrier system Non-Relevant Test, not conducted 
 Version 10.0 (05/16) 

Page 6 of 6 

4-21 (2270P) Test 4-21 for transition is not applicable for 

this median barrier system Non-Relevant Test, not conducted 

4-22 (10000S) Test 4-22 for transition is not applicable for 

this median barrier system Non-Relevant Test, not conducted 

Full Scale Crash Testing was done in compliance with MASH by the following accredited crash test 

laboratory (cite the laboratory’s accreditation status as noted in the crash test reports.): 

Laboratory Name: Texas AM Transportation Institute 

Laboratory Signature: Digitally signed by Darrell L. Kuhn 

'Date: 2023.03.06 10:40:14 -06'00 

Address: 1254 Avenue A, Bldg. 7091, Bryan, Texas 77807 Same as Submitter 

Country: USA Same as Submitter 

Accreditation Certificate 

Number and Dates of current 

Accreditation period : 

ISO 17025-2017 Laboratory 

A2LA Certificate Number: 2821.01 

Valid To: April 30, 2023 

Submitter Signature*: 

Submit Form 

ATTACHMENTS 

Attach to this form: 

1) Additional disclosures of related financial interest as indicated above. 

2) A copy of the full test report, video, and a Test Data Summary Sheet for each test conducted in 

support of this request. 

3) A drawing or drawings of the device(s) that conform to the Task Force-13 Drawing Specifications 

[Hardware Guide Drawing Standards]. For proprietary products, a single isometric line drawing is 

usually acceptable to illustrate the product, with detailed specifications, intended use, and contact 

information provided on the reverse. Additional drawings (not in TF-13 format) showing details that 

are relevant to understanding the dimensions and performance of the device should also be submitted 

to facilitate our review. 

FHWA Official Business Only: 

Eligibility Letter 

Number Date Key Words
0.000 s 0.200 s 0.400 s 0.700 s 

General Information 

Test Agency........................ 

Test Standard Test No........ 

TTI Test No. ....................... 

Test Date............................ 

Test Article 

Type ................................... 

Name.................................. 

Installation Length............... 

Material or Key Elements .... 

Soil Type and Condition ...... 

Test Vehicle 

Type/Designation................ 

Make and Model ................. 

Curb.................................... 

Test Inertial......................... 

Dummy ............................... 

Gross Static ........................ 

Texas A&M Transportation Institute (TTI) 

MASH Test 4-12 

611851-3 

2019-07-15 

Longitudinal Barrier – Concrete Barrier 

50-inch tall precast F-shape concrete 

barrier 

206 ft-8 inches 

17 precast reinforced F-shape concrete 

barriers 12 ft long, 52 inches tall, 5 inches 

wide at top, and 24 inches wide at bottom 

connected with drop-in pins through loops 

Keyed in with 2 inches of asphalt 

10000S 

2011 International 4300 single-unit truck 

14,170 lb 

22,240 lb 

No dummy 

22,240 lb 

Impact Conditions

Speed............................... 

Angle................................ 

Location/Orientation ......... 

Impact Severity.................. 

Exit Conditions 

Speed............................... 

Angle................................ 

Occupant Risk Values

Longitudinal OIV............... 

Lateral OIV ....................... 

Longitudinal Ridedown ..... 

Lateral Ridedown ............. 

THIV................................. 

PHD ................................. 

ASI ................................... 

Max. 0.050-s Average 

Longitudinal................... 

Lateral........................... 

Vertical.......................... 

56.6 mi/h 

14.8° 

4.4 ft upstream of 

joint 4-5 

155 kip-ft 

Not obtainable 

Not obtainable 

5.6 ft/s 

13.1 ft/s 

4.7 g 

12.6 g 

15.5 km/h 

12.6 g 

0.52 

-1.5 g 

-4.5 g 

-2.6 g 

Post-Impact Trajectory

Stopping Distance..................... 

Vehicle Stability

Maximum Yaw Angle ................ 

Maximum Pitch Angle ............... 

Maximum Roll Angle ................. 

Vehicle Snagging...................... 

Vehicle Pocketing ..................... 

Test Article Deflections 

Dynamic..........at Top .............. 

Permanent.......at Bottom ......... 

Working Width .......................... 

Height of Working Width ........... 

Vehicle Damage

VDS .......................................... 

CDC.......................................... 

Max. Exterior Deformation......... 

OCDI ........................................ 

Max. Occupant Compartment 

Deformation........................... 

280 ft downstream 

2 ft twd traffic lanes 

22° 

10° 

36° 

No 

No 

21.8 inches 

6.75 inches 

69.3 inches 

120.4 inches 

NA 

01RFQ4 

14.0 inches 

NA 

4.0 inches in the right 

firewall/floor pan 

Figure 5.6. Summary of Results for MASH Test 4-12 on 50-inch Tall Precast F-Shape Concrete Barrier. 
0.000 s 0.200 s 0.400 s 0.700 s 

General Information Impact Conditions Post-Impact Trajectory 

Test Agency....................... Texas A&M Transportation Institute (TTI) Speed.................................63.4 mi/h Stopping Distance..................... 187 ft downstream 

Test Standard Test No. ...... MASH Test 4-11 Angle ..................................24.5° 7 ft twd field side 

TTI Test No. ...................... 611851-2 Location/Orientation............4.2 ft upstream Vehicle Stability 

Test Date ........................... 2019-07-17 of joint 9 and 10 Maximum Yaw Angle ................ 27° 

Test Article Impact Severity ....................116 kip-ft Maximum Pitch Angle ............... 16° 

Type................................... Longitudinal Barrier – Concrete Barrier Exit Conditions Maximum Roll Angle................. 13° 

Name ................................. 50-inch tall precast F-shape concrete barrier Speed.................................50.4 mi/h Vehicle Snagging...................... No 

Installation Length.............. 206 ft-8 inches Trajectory/Heading Angle....4.1° / 1.9° Vehicle Pocketing ..................... No 

17 precast reinforced F-shape concrete barriers Occupant Risk Values Test Article Deflections 

Material or Key Elements ... 12 ft long, 52 inches tall, 5 inches wide at top, and Longitudinal OIV .................19.4 ft/s Dynamic......at Top .................. 13.2 inches 

24 inches wide at bottom connected with drop-in Lateral OIV .........................23.3 ft/s Permanent...at Bottom ............. 4.0 inches 

pins through loops Longitudinal Ridedown........6.4 g Working Width .......................... 26.75 inches 

Keyed in with 2 inches of asphalt Lateral Ridedown................6.2 g Height of Working Width ........... 50.0 inches 

Soil Type and Condition ..... THIV ...................................34.9 km/h Vehicle Damage 

Test Vehicle PHD....................................6.8 g VDS.......................................... 01RFQ5 

Type/Designation ............... 2270P ASI .....................................1.79 CDC.......................................... 01FREW4 

Make and Model ................ 2013 RAM 1500 pickup Max. 0.050-s Average Max. Exterior Deformation ........ 16.0 inches 

Curb................................... 4976 lb Longitudinal .....................-9.9 g OCDI ........................................ RF0010000 

Test Inertial ........................ 5010 lb Lateral .............................-13.2 g Max. Occupant Compartment 

Dummy .............................. 165 lb Vertical ............................-4.0 g Deformation........................... 3.0 inches in the 

Gross Static ....................... 5175 lb right side firewall 

Figure 6.6. Summary of Results for MASH Test 4-11 on 50-inch Tall Precast F-Shape Concrete Barrier. 
0.000 s 0.200 s 0.400 s 0.700 s 

General Information 

Test Agency........................ 

Test Standard Test No........ 

TTI Test No. ....................... 

Test Date............................ 

Test Article 

Type ................................... 

Name 

Installation Length............ 

Material or Key Elements .... 

Soil Type and Condition ...... 

Test Vehicle 

Type/Designation................ 

Make and Model ................. 

Curb.................................... 

Test Inertial......................... 

Dummy ............................... 

Gross Static ........................ 

Texas A&M Transportation Institute (TTI) 

MASH Test 4-10 

611851-1 

2019-07-19 

Longitudinal Barrier – Concrete Barrier 

50-inch tall precast F-shape concrete 

barrier 

206 ft-8 inches 

17 precast reinforced F-shape concrete 

barriers 12 ft long, 52 inches tall, 5 inches 

wide at top, and 24 inches wide at bottom 

connected with drop-in pins through loops 

Keyed in with 2 inches of asphalt 

1100C 

2009 Kia Rio 

2529 lb 

2418 lb 

165 lb 

2583 lb 

Impact Conditions

Speed ................................ 

Angle ................................. 

Location/Orientation........... 

Impact Severity.................... 

Exit Conditions 

Speed ................................ 

Trajectory/Heading Angle... 

Occupant Risk Values

Longitudinal OIV ................ 

Lateral OIV......................... 

Longitudinal Ridedown....... 

Lateral Ridedown ............... 

THIV .................................. 

PHD................................... 

ASI..................................... 

Max. 0.050-s Average 

Longitudinal .................... 

Lateral ............................ 

Vertical............................ 

62.4 mi/h 

25.6° 

3.9 ft upstream of 

Joint 13 and 14 

59 kip-ft 

53.9 mi/h 

7.2° / 6.8° 

18.7 ft/s 

31.2ft/s 

5.7 g 

13.0 g 

39.7 km/h 

13.0 g 

2.34 

-9.7 g 

-17.6 g 

4.9 g 

Post-Impact Trajectory

Stopping Distance..................... 

Vehicle Stability

Maximum Yaw Angle ................ 

Maximum Pitch Angle ............... 

Maximum Roll Angle ................. 

Vehicle Snagging...................... 

Vehicle Pocketing ..................... 

Test Article Deflections 

Dynamic......... at Top .............. 

Permanent.......at Bottom ......... 

Working Width .......................... 

Height of Working Width ........... 

Vehicle Damage

VDS .......................................... 

CDC.......................................... 

Max. Exterior Deformation......... 

OCDI ........................................ 

Max. Occupant Compartment 

Deformation........................... 

195 ft downstream 

43 ft twd traffic lanes 

124° 

29° 

649° 

No 

No 

2.9 inches 

0.125 inch 

24.0 inches 

Ground level 

01R&T5 

01FRAW5 

9.0 inches 

AS0010000 

2.0 inches in the right 

front passenger roof 

Figure 7.6. Summary of Results for MASH Test 4-10 on 50-inch Tall Precast F-Shape Concrete Barrier. 
 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.000 s 0.100 s 0.200 s 0.400 s 

General Information 

Test Agency....................... 

Test Standard Test No....... 

TTI Test No. ...................... 

Test Date........................... 

Test Article 

Type .................................. 

Name................................. 

Installation Length.............. 

Material or Key Elements ... 

Soil Type and Condition ..... 

Test Vehicle 

Type/Designation............... 

Make and Model ................ 

Curb................................... 

Test Inertial........................ 

Dummy .............................. 

Gross Static ....................... 

Texas A&M Transportation Institute (TTI) 

MASH Test 4-10 

611851-4 

2020-11-13 

Longitudinal Barrier—Concrete Barrier 

50-inch tall precast F-shape concrete 

barrier keyed in 4 inches of asphalt 

97 ft-2 inches 

Concrete, steel rebar and pins, and 

asphalt. 

Keyed in with 4 inches of asphalt 

1100C 

2014 Nissan Versa 

2415 lb 

2429 lb 

165 lb 

2594 lb 

Impact Conditions

Speed ................................ 

Angle ................................. 

Location/Orientation........... 

Impact Severity.................... 

Exit Conditions 

Speed ................................ 

Trajectory/Heading Angle... 

Occupant Risk Values

Longitudinal OIV ................ 

Lateral OIV......................... 

Longitudinal Ridedown....... 

Lateral Ridedown ............... 

THIV .................................. 

ASI..................................... 

Max. 0.050-s Average 

Longitudinal .................... 

Lateral............................. 

Vertical............................ 

61.7 mi/h 

25.2° 

3.5 ft upstream 

joint 4 – 5 

56 kip-ft 

50.7 mi/h 

3.8°/3.7° 

20.3 ft/s 

30.2 ft/s 

3.1 g 

7.8 g 

10.8 m/s 

2.4 

−11.4 g 

−18.7 g 

−7.5 g 

Post-Impact Trajectory

Stopping Distance..................... 

Vehicle Stability

Maximum Roll Angle ................. 

Maximum Pitch Angle ............... 

Maximum Yaw Angle ................ 

Vehicle Snagging...................... 

Vehicle Pocketing ..................... 

Test Article Deflections 

Dynamic.................................... 

Permanent ................................ 

Working Width........................... 

Height of Working Width ........... 

Vehicle Damage

VDS .......................................... 

CDC.......................................... 

Max. Exterior Deformation......... 

OCDI......................................... 

Max. Occupant Compartment 

Deformation........................... 

194 ft downstream 

23 ft twd field side 

7° 

10° 

75° 

No 

No 

1.6 inches 

None observed 

24.0 inches 

50.0 inches 

01RFQ6 

01FREW4 

9.0 inches 

RF0000000 

2.5 inches in the 

right front kick panel 

Figure 8.6. Summary of Results for MASH Test 4-10 on 50-inch Tall Precast F-Shape Concrete Barrier Keyed in 4 inches of 

Asphalt. 
A.1 DETAILS OF 50-INCH TALL PRECAST F-SHAPE CONCRETE BARRIER KEYED IN 2 INCHES OF ASPHALT

A.1 DETAILS OF 50-INCH TALL PRECAST F-SHAPE CONCRETE BARRIER KEYED IN 2 INCHES OF ASPHALT 


A.2 DETAILS OF 50-INCH TALL PRECAST F-SHAPE CONCRETE BARRIER KEYED IN 4 INCHES OF ASPHALT

A.

2 DE

TAIL

S OF 50-INCH TALL PRECAST F-SHAPE CONCRETE BARRIER 

K

EYED IN 4 INCH

ES OF ASPHALT