# Presentation: 136111

## Williamsport Regional AirportImprove Runway 9 and 27 Safety Areas

**By:   Richard L. Holes, PE**

## Williamsport Regional Airport - R/W 27 Project Summary

-  Project : Extend/Improve R/W 27 Safety 			Area
-  Airport Director: Thomas Hart
-  Contractor: Dobrinski Bros. Inc.
-  Final Construction Cost: $732,265.00
-  Total Contract Time: 90 Calendar Days
-  Date Completed: July 2007

## Williamsport Regional Airport - R/W 9 Project Summary

-  Project : Extend R/W 9 and Safety 			Area
-  Site Prep. Contractor: Dobrinski Bros., Inc.
-  Paving/Lighting Contractor: Glenn O. Hawbaker, Inc.
-  Approx. Construction Cost: $3,700,000.00
-  Total Contract Time: Est. 360 Calendar Days
-  Date Completed: November 2008 (Est.)

## Williamsport Regional Airport

**30**

**27**

**9**

**12**

**4,380’ x 100’**

**6,474’ x 150’**

## Williamsport Regional Airport

- Background
**Scheduled Service to Philadelphia on DASH-8 Aircraft**
**Significant Corporate Activity Since 9/11**
**Airport has 2 Runways**
-  **Runway 9-27 is the main, ILS runway (6,474’ x 150’)**
** ****Runway 12-30 is a general aviation runway (4,280’ x 150’)**

## Williamsport Regional Airport

- Runway Safety Area Determination
**Completed by FAA HAR-ADO in 9/2000**
**Runway 9 – It was determined that it was practible to improve the RSA to meet current standards**
**Runway 27 – It was determined that the RSA could be improved, but not to the point that it would meet current standards**

## Williamsport Regional Airport

- Runway Safety Area Standards
**RSA Determination based on ARC C-III**
** ****Required RSA is 500’ wide, extending 1,000’ beyond the runway end**
**2006 Master Plan Changed the ARC**
** ****Current Condition is B-III > 3⁄4-mile mins.**
** ****Required RSA is 300’ wide, extending 600’ beyond the runway end**
** ****Future Condition is B-III < 3⁄4-mile mins.**
** ****Required RSA is 400’ wide, extending 800’ beyond the runway end**

## Williamsport Regional Airport

- RSA Conditions Prior to Improvements
_**Runway 27**_
** ****Area that met standards was 200’ long x 400’ wide**
** ****Deviations included:**
** ****Non-frangible perimeter fence and grade (mound) located 200’ from threshold **
**Sedimentation pond located 225’ from threshold**
**Non-frangible MALSR towers located 600’ from threshold**
**Railroad tracks located 900’ from threshold**

## Williamsport Regional Airport

- RSA Conditions Prior to Improvements
_**Runway 27**_

**Fence and Mound**

**Sedimentation Pond**

**Railroad**

## Williamsport Regional Airport

- Runway 27 Safety Area Improvements
** ****Needed to Acquire Land from Adjacent Sand-Mining Operation**
** ****Subdivided 16.4 acres from Larger Parcel**
** ****Land was included in sand mining permit and was previously used as a sedimentation pond**
** ****PA DEP required land to be removed from sand mining permit and land reclamation permit**

## Williamsport Regional Airport

- Runway 27 Safety Area Improvements
** ****Completed Environmental Due Diligence Audit (EDDA)**
** ****No Hazards Found**
** ****Completed Drilling of Sedimentation Pond**
** ****Found over 30’ of Silt**
** ****Completed Permitting for Project**
** ****NPDES Permit was Required**
** ****Mining Permit Modifications were Required**
** ****Biggest Concern was Phragmites, an invasive plant species**

## Williamsport Regional Airport

**Runway 27 Safety Area Improvements**

## Williamsport Regional Airport

**Runway 27 Safety Area Improvements**

## Williamsport Regional Airport

- RSA Conditions After Improvements
_**Runway 27**_

## Williamsport Regional Airport

- RSA Conditions Prior to Improvements
_**Runway 9**_
** ****Area that met standards was 215’ long  x 400’ wide**
** ****Deviations included:**
** ****Loyalsock Creek Overflow Channel located 215’ from threshold**
** ****Non-frangible localizer antenna located 800’ from threshold**
** ****Mill Street located 1,100’ from threshold**

## Williamsport Regional Airport

- RSA Conditions Prior to Improvements
_**Runway 9**_

**Loyalsock Creek Overflow Channel**

**Localizer Antenna**

**Mill Street**

**Loyalsock Creek**

## Williamsport Regional Airport

- Runway 9 Safety Area Improvements
** ****Located in WB of Susquehanna River and Loyalsock Creek Floodways**
** ****Needed H & H Study and Chapter 105 Permit**
** ****Fill in Loyalsock Creek Overflow Channel**
** ****Flow capacity = 600 cfs**
** ****Needed 6 - 38” x 57” CM Pipe-Arch Culverts**
** ****Grade RSA to Meet FAA Standards**
** ****Needed 48,000 CY of Fill Material**
** ****Obtained 12,000 CY from Loyalsock Creek**

## Williamsport Regional Airport

- Runway 9 Safety Area Improvements
** ****Relocate Localizer Antenna**
** ****Mill Street and Loyalsock Creek in the way**
** ****Allow for Adding 350’ to Runway Length**
** ****Allow for Parallel TW Extension**
** ****Needed 136,000 Additional CY of Fill Material**

## Williamsport Regional Airport – R/W 9 End Existing Conditions

-  Non-frangible Localizer often damaged during flooding
-  Non-standard grading in safety area

## Williamsport Regional Airport – Borrow Site, Loyalsock Creek 

-  12,000 CY Borrow Material Excavated from Loyalsock Creek
-  Material used as drainage layer for runway and taxiway extensions

## Williamsport Regional Airport – Borrow Site, Loyalsock Creek

-  Removal of material from Loyalsock Creek began in November
-  All work was completed in approximately 3 weeks

## Williamsport Regional Airport – Fill Placement

## ANY QUESTIONS

- ?