Fairbanks Landing Sec 1 - Construction of Water, Force Main, Sanitary, Paving, Drainage, Detention Facilities, and Traffic Signal Modifications

West Harris County Municipal Utility District No. 21 is soliciting construction services for Fairbanks Landing Section 1, a utility infrastructure project serving a commercial development east of Taub Road and Fairbanks North Houston in Harris County, Texas, with proposals due September 18, 2026.

The scope encompasses water, force main, sanitary sewer, paving, drainage, detention facilities, and traffic signal modifications to serve the development. The underlying site is approximately 68 acres with two warehouse buildings (footprints of 125,623 and 678,875 square feet), three detention ponds with maximum depths of 10 feet and 3(H):1(V) sideslopes, and associated rigid concrete and flexible asphalt pavement sections. The geotechnical conditions consist of fill soils 13 to 53 feet deep overlying native lean clay, fat clay, and silty/clayey sand. Site preparation requires a minimum 36-inch-thick select fill building pad; foundation systems must extend through fill soils to minimum depths of 50 feet below existing grade to bear within native clay. Pavement design ranges from 5.0 to 10.0 inches of reinforced concrete or 2.0 to 2.5 inches of asphaltic concrete over 8.0 to 10.0 inches of base material, depending on traffic classification (DI-1 through DI-5). Construction must include ground improvement for grade-supported slabs, chemical treatment of subgrade soils with lime or lime-flyash mixtures, effective drainage maintenance, and full-time construction observation by experienced technicians. A geotechnical report (Terracon Project No. 92255244, dated November 5, 2025) is attached and provides detailed subsurface characterization, bearing-pressure values, and design recommendations.

No contract value, incumbent, evaluation criteria, or additional timeline dates are specified in the available source material.