Cowlitz County Public Utility District 1 Civicplus #492

Westside Highway Slide Repair Project – Construction Materials and Services Solicitation

Cowlitz County Department of Public Works is seeking bids for the Westside Highway Slide Repair Project, focused on stabilizing a landslide area in Cowlitz County, WA. - Government Buyer: - Cowlitz County Department of Public Works - Products and Construction Materials Requested: - Gravity block retaining wall (2,700 sq ft) - Underdrain pipe, 6-inch diameter, Type 1 (260 linear feet) - Quarry spalls (2,350 tons) - Crushed surfacing base course (520 tons) - Hot mix asphalt (HMA Class 3/8 Inch PG 58H-22, 25 tons) - Construction geotextile for separation (1,400 sq yds) - Gravel backfill for walls (400 cubic yards) - Miscellaneous construction (force account, $15,000) - Mobilization, temporary traffic control, clearing and grubbing, roadway excavation (1,565 cubic yards), unsuitable foundation excavation (25 cubic yards), trimming and cleanup - Services Requested: - Site preparation, excavation, embankment, and disposal - Traffic control during construction - Trimming, cleanup, and mobilization - Unique or Notable Requirements: - Compliance with Washington State prevailing wage laws - Construction must be completed within 30 working days, preferably during the dry season (mid-July to late September) - Detailed geotechnical engineering recommendations for slope stabilization - Liquidated damages for delays beyond completion date - No specific OEMs or named vendors are identified in the solicitation.

Description

This solicitation is for the repair of a slide on Westside Highway. The work includes excavation, installation of a retaining wall, underdrain, quarry spalls, crushed surfacing base course, hot mix asphalt, furnishing traffic control, and other associated tasks. The project is managed by Cowlitz County Department of Public Works in Washington. Bidders must submit sealed bids by September 14, 2026, at 1:30 pm to be considered.

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