Specifications For The Reconstruction Of The Sunset Lake Dam (NJ 34-1) Embankment Countermeasures

Cumberland County, New Jersey is soliciting sealed bids for reconstruction of the Sunset Lake Dam (NJ 34-1) embankment countermeasures, with bids due August 12, 2026 at 2:30 p.m. prevailing time at the Cumberland County Administration Building in Bridgeton. The project is subject to New Jersey prevailing wage requirements and public works contractor registration.

The scope encompasses embankment grouting, excavation, fill placement, slope protection using gabion baskets, discharge structure concrete repairs, dewatering, site clearing, soil erosion and sediment control, and traffic control. Work includes confirming the stratigraphic profile during boring and grout-pipe placement; sealing gaps between concrete culvert structures and sheeting at crest and toe elevations, including a known void beneath the moment slab on the culvert's western side; installing gap stops; injecting suitable grout materials to fill voids and soil void space surrounding the existing culvert; observing grout penetration through two observation ports in the culvert bottom and grouting the culvert bottom if needed; and injecting grout at the toe from culvert bottom elevation to the tip of existing toe sheeting and through the culvert discharge to fill voids. The contractor must furnish all labor, materials (including grouting materials), operations, and equipment to supply, transport, store, mix, and pump grout; maintain complete grouting records documenting volumes, pressures, time, and refusal conditions for each injection for daily Engineer review; and monitor work to prevent damage to existing structures.

The bid includes 13 line items with unit prices. Bidders must submit bid security equal to 10 percent of the bid amount (not to exceed $20,000), performance bond, labor and material payment bond, maintenance bond, and certificates of insurance naming Cumberland County as additional insured. Subcontractors performing specialized compaction grouting in embankment dams must demonstrate a minimum of five years of experience. Additional required submissions include equipment certifications, vendor information sheets, three public-agency references, corporate disclosure statements, and monthly project workforce reports. Certified payroll forms and affirmative action compliance are mandatory. Insurance coverage must remain in force for two years following project completion.