Langley Air Force Base (AFB) covers approximately 3,000 acres
including 600 acres of wetlands just north of Virginia Beach,
Virginia. The base has a rich military history dating back to 1916 and has remained a
critical part of the United States military infrastructure. Rehabilitation on the base was necessary due to the stress on
its physical infrastructure, especially its aging water system.
There is a great deal of space for mission activity and the water
system that supports that activity but maintaining operations
while addressing critical upgrades is essential. Typically, aging
pipes would be dug up and replaced in kind. However, current
environmental concerns as well as disruption of base activity
would not allow this approach. To minimize environmental
impact and operational disruption, Fusible PVC® pipe, installed by horizontal directional drilling was used to rehabilitate the line.