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The Town of Wrightsville Beach is seeking proposals and estimates for cleaning and color video inspection and recording of approximately 10,000 feet of gravity sewer line. The area of cleaning/color video recording includes all of North Harbor Island and portions of South Harbor Island. A detailed GIS map will be provided to the successful bidder.
General. The most common pipe material is VCP and the majority of the pipe in the 8” range. The greater part of the cleaning is on side streets. During cleaning, materials/debris shall not be allowed to by-pass and flow downstream of the segment being cleaned. The contractor will be responsible for any and all necessary traffic control/devices. Hours of operation are 7:00 am – 5:00 pm, Monday through Saturday, unless otherwise specified.
Disposal of Material. Disposal of material collected from the sewer lines will be at the Cape Fear Public Utility Authority; either Northside WWTP or Southside WWTP complex. The contractor must coordinate activity with the Authority. The Town will be responsible for disposal costs.
Inspection Reports. A comprehensive written report (pdf and hard copy) of the inspection is required. This report must identify line segment direction of travel (upstream/downstream), the location of defect(s) (in feet from start of video), a defect score (1-5, 1 being minimal and 5 being severe) and an estimate of infiltration. In addition to the written report, a complete color video report must be provided on a DVD or flash drive showing each segment of the sewer main cleaned. The videos recorded must be well lit; this will require auxiliary lighting for the camera unit. During video recording, the upstream flow, and any pump station flows, must be stopped in order that infiltration may be determined – any flow stopping must be coordinated with the Town. Software used in making the report must be WinCan compatible.
SSOs and Spills. The contractor shall be responsible for any sanitary sewer overflows (SSOs), or spills that occur as a result of his actions. The sewer line cleaning project interacts with one pump station; LS 4 (Live Oak Dr.). Since video of the lines may require the flow through the affected sections to be suspended by plugging the upstream lines, flow may be by-passed into specific manholes, care must be taken in order to prevent backing up sewer into houses or causing a sewer spill. Care should be used to avoid over-pressurizing the lines during cleaning and resulting in water being forced out of water traps in dwellings and residences. The contractor may coordinate for use of the Town fire hydrants for water; Town-provided backflow protection is required.
Proposals/Bids. Proposals/bids will be evaluated on the basis of combined clean and video pricing. All bids/proposals pricing should be per foot of sewer line and should show the price per foot to clean and the price per foot to video. Also included in the proposal should be any costs for mobilization/demobilization. Additional cleaning may be provided at the agreed upon rate. Proposals should be provided no later than 10/31/2017 at 12:00 pm. The work should be completed prior to 01/30/2018. The Town shall not be responsible for lost or damaged equipment and reserves the right to reject any and all bids. The successful bidder must provide copies of Workmen’s Compensation Insurance and Liability Insurance ($1,000,000) with the Town named as an additional insured. Please send all bids to: Attn: Bill Squires, Director of Public Works, Town of Wrightsville Beach, 200 Parmele Blvd, Wrightsville Beach, NC 28480.