Phase I Sanitary Sewer Repair and Replacement and Lift Station Rehabilitation, Langley AFB, VA
|OTIE performed a $3M construction project to achieve compliance with CWA rules that require reduction of clear water infiltration and inflow (I/I) on the Air Combat Command’s busiest AFB. Tasks included excavation and replacement and, in some cases, in-place rehabilitation of pipe for a gravity sanitary sewer system, replacement of service manholes, and rehabilitation of four historically significant lift stations. OTIE replaced and rehabilitated a total of 15,000 feet of sanitary sewer—replaced 5,000 feet and rehabilitated 10,000 feet.
OTIE initiated the work beginning with an 80% design (by others) and prepared and submitted for approval plans, certificates, permit applications, submittals, and related project documents.
OTIE performed all site preparation, including pre-construction sewer video inspection and cleaning prior to rehabilitation, dye testing to determine active laterals, rerouting sewage flows, all surveying and construction staking, and sewer excavation.
We rehabilitated over 100 manholes using epoxy liner. During the lift station rehabilitation construction, OTIE demolished and constructed new piping and concrete floodwall, new yard piping and lift chain, new ventilation equipment and windows, extensive piping modifications, roofing replacement, door replacement, and window replacement.
|Client Name: USACE Omaha
Location: Langley AFB, VA
Contract Value: $3M