Drilling - CA BR NCAO SHAS(1) UPPER VISTA HOUSE ROAD

Summary (Newest Update)

Background The contract is issued by the Bureau of Reclamation for a subsurface pavement investigation at the Shasta Dam Visitor Center, located in Shasta Lake, CA. The goal of this contract is to conduct a thorough investigation of the pavement structure to assess its condition and gather necessary soil samples for analysis. This acquisition is set-aside for small business concerns, with an emphasis on ensuring that contractors are registered and compliant with federal regulations. Work Details The contractor will perform a subsurface pavement investigation consisting of six shallow borings in the existing parking area. The tasks include: - Drilling six shallow borings to penetrate through the existing pavement and into underlying materials. - Collecting bulk subgrade soil samples weighing between 50-70 lbs from each location. - Measuring layer depths of the pavement structure. - Backfilling the boreholes with aggregate/gravel mix and compacting it in 1-foot lifts, finishing with either fast-setting concrete mix or cold mix asphalt patch material to match existing roadway conditions. - Ensuring that utility locates are performed using 811 USA (Underground Service Alerts for Northern California) prior to drilling. - Maintaining a temporary work zone around the drill rig for approximately 20 to 30 minutes per drilling location, without requiring lane closures due to sufficient space in the parking lot. Place of Performance The work will be performed at the Shasta Dam Visitor Center parking area, Shasta Lake, CA 96019.