Hawaii eProcurement Portal #B27000469

Drainage Improvements for Kaumualii Highway near Omao Stream Bridge, Kauai

The Hawaii Department of Transportation is seeking contractors for drainage improvements along Kaumualii Highway near the Omao Stream Bridge, Kauai. - Government Buyer: - Hawaii Department of Transportation, Highways Division, Kauai District - Scope of Work: - Demolition and removal of existing drainage structures, concrete apron, asphalt pavement, and chain link fencing - Installation of a new 42-inch reinforced concrete pipe (RCP) drain line (389 linear feet), including microtunneling/pipe jacking and open-trench methods - Construction of storm drain manholes, grated drop drain inlets (Type 1211216P), and standard concrete outlet structures - Grouted rubble paving, reinforced concrete apron, new asphalt concrete pavement (HMA Mix No. IV), and chain link fencing (4-feet and 6-feet, total 364 feet) - Erosion control matting (679 square yards), hydro-mulch seeding (2,253 square yards), imported planting soil, and temporary irrigation system - Clearing, grubbing, excavation (1,091 cubic yards for RCP), backfilling, grading, and grassing - Removal and filling of existing 24-inch RCP drain pipe with controlled low-strength material (CLSM) - Installation of aggregate base (76 cubic yards), aggregate subbase (32 cubic yards), and bed course material (377 cubic yards) - Installation and maintenance of Best Management Practices (BMP) for water pollution, dust, and erosion control - Traffic control, flagging, and additional police officers/devices as needed - Construction instrumentation and monitoring, protection of endangered species, and mobilization - Products/Materials: - No. 2 Coarse Aggregate (ASTM C33, No. 4 gradation), No. 3B Fine Gravel (ASTM C33, No. 67 gradation), non-woven filter fabric (Mirafi 180N or equivalent) - Controlled Low Strength Material (CLSM) for backfill - Pavement striping (white and double yellow, thermoplastic extrusion), pavement markers (Type C and D) - Services: - Geotechnical engineering exploration, laboratory testing, construction monitoring, and special inspection - Traffic control and flagging during construction - Unique/Notable Requirements: - Microtunneling/pipe jacking for drain line installation - Compliance with Hawaii General Excise Tax, Hawaii Compliance Express registration, and federal nondiscrimination regulations - Valid State of Hawaii General Engineering "A" license required - Protection of endangered species and environmental controls - OEMs/Vendors: - No specific OEMs or manufacturers are named; Mirafi (for filter fabric) is referenced as an equivalent standard - Estimated Contract Value: - $10,000,000 to $11,000,000 - Period of Performance: - 280 working days from the Start Work Date

Description

This solicitation is for the Kaumualii Highway Drainage Improvements project near Omao Stream Bridge on the Island of Kauai, Hawaii. The work includes demolition and removal of existing drainage structures, concrete apron, asphalt concrete pavement, and chain link fencing. It also involves filling an existing 24" RCP drain pipe crossing Kaumualii Highway with controlled low-strength material and abandoning it in place, installation of a 42" reinforced concrete pipe, drain manhole, grated drain inlets, concrete outlet structure, grouted rubble paving, reinforced concrete apron, asphalt concrete pavement, chain link fencing, erosion control matting, clearing, grubbing, excavation, backfilling, grading, and grassing. The estimated construction cost is between $10,000,000 and $11,000,000.

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