Aircraft Pavement Construction and Repair
McChord, Fairchild and Malmstrom Air Force Bases
Washington Engineering personnel designed these projects as Delivery Orders on Indefinite Delivery A-E Services contracts for the Seattle District Corps of Engineers.
Add/Alter Aircraft Parking Apron - Design of a 21,000 square yard concrete apron extension, with associated utilities relocations and installation of taxiway lighting and general area security lighting. Pavement designed with a 10-inch depth to support A10 aircraft.
Design features included:
- Concrete pavement design, including jointing
- Apron striping for parking and taxiing
- Apron lighting
- Facility relocation for apron extension
- Asphalt access roadway
- Electrical utilities
- Hazardous waste building
- Waterline
Hazardous Cargo Loading Pad "L" Extension - 5,000 square foot apron extension to provide adequate space for munitions loading for the A-10 aircraft.
Design features included:
- Concrete pavement design, inlcuding jointing
- Rehabilitate and repair joints in existing concrete apron
Runway Repairs - This Delivery Order performed an inspection of the 150 foot wide by 11,000 foot long primary runway and shoulders at McChord AFB. In the performance of this work, close coordination was required with Operations personnel during the inspection phase as the runway was maintained in an active condition. Based on the inspection work, construction documents were prepared to repair both the asphaltic concrete (AC) and portland cement concrete (PCC) portions of the runway.
Repairs to the AC portion of the runway included:
- Sealing/resealing all cracks
- Grinding/replacement of deteriorated pavement along construction joints & Shoulder repair
- Restriping any damaged pavement markings
Repairs to the PCC portion included:
- Resealing joints and repair of joint spalling
- Scaling/Resealing of random working cracks
- Removal and replacement of damaged slabs & Restriping
Add/Alter Taxiways at McChord AFB - Design of a 1500 foot long aircraft tow road, widening of an existing 50 foot wide substandard taxiway to 75 feet with paved shoulders, joint sealing of a hazardous cargo pad and design of a 25' by 200' addition to a hazardous cargo pad.
Hot Refueling Point - This project constructs three concrete hardstands with underground valve pits, 1000 feet of taxiways with semi-flush lighting fixtures, 40,000 gallons of underground jet fuel tankage, a 500 square foot operations building and associated site and utilities improvements to support helicopter refueling operations at Fort Lewis.
Major Components: 40,000 gallon JP4 storage capacity. 350 gpm pumping capability to six fuel pits at three concrete pads. Pads are connected to existing taxiway by a system of paved hoverlanes.
Fuel system is provided with fail-safe grounding device which prevents the energizing of the fuel pumps until positive ground has been established at the aircraft.
The facility is also provide with an oil/water diversion system, housed in a containment basin, which will prevent spilled fuel from entering the garrison's storm drainage.
Key Project Features:
- Flexible pavements
- Rigid pavements
- Design/construction support
