Oregon Buys #S-C01010-00018309

Progressive design-build services for the Sandy River force-main crossing

Clackamas County Water Environment Services is seeking a progressive design-build team to replace and protect the Sandy River sanitary force main crossing. - Government buyer: Clackamas County, through Water Environment Services (WES), including Clackamas County Service District No. 1; County Procurement is identified as the procurement office. - Procurement: One progressive design-build services requirement for planning, design, permitting, and construction of a permanent force-main river crossing. The current solicitation does not specify a product quantity or part number. - Project scope: Design an approximately 8-inch pipeline of unspecified length to carry raw sewage from the Sandy River Lane Pump Station beneath the Sandy River. Evaluate the alignment and trenchless crossing method, address the existing exposed crossing, and determine whether pump-station connection modifications or relocation are needed. - Phases: Phase 1 includes studies, a basis-of-design report, design and specifications to 60%, cost estimating, permitting strategy, easement assistance, and development and negotiation of a Guaranteed Maximum Price (GMP). Phase 2 is conditional on the owner's acceptance of a GMP and covers final design, permits, construction, startup, testing, commissioning, correction work, and warranty. - Notable technical considerations: Prior planning documents recommend evaluating approximately 800- or 900-foot horizontal directional drilling (HDD) alignments and conducting two additional sonic borings, one on each side of the river. Pump-station relocation and site protection are options for further evaluation, not specified final requirements. - Related materials shown in an attached temporary-protection drawing: 125 CY of boulders, 130 CY of cobble, and 98 FT of temporary bulk-bag cofferdam; plastic sheeting and sandbags are also specified without quantities. These quantities relate to temporary protection drawings, not stated purchases under the current design-build solicitation. - Named organization/vendor: Century West Engineering prepared a preliminary geotechnical memorandum. No product OEMs or manufacturers are named in the materials. - Performance targets: Phase 1 deliverables are targeted for 2027; conditional Phase 2 construction is targeted for substantial completion in late 2027 and final completion around the end of 2027 or early 2028. Exact start date and overall duration are not stated.

Description

Clackamas County is seeking proposals for progressive design-build services for the Sandy River Force Main River Crossing Project. The work includes design and construction of a pipeline carrying raw sewage from the Sandy River Lane Pump Station across the Sandy River. The project is planned in two phases: Phase 1 includes preliminary design up to 60% completion and preparation of a Guaranteed Maximum Price proposal; Phase 2 includes completion of design, construction, startup, testing, commissioning, and related post-construction tasks if the GMP proposal is accepted. Proposals are due December 3, 2026, at 2:00 PM local time.

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