Bridge Improvements (B498)

This contract concerns the replacement and improvement of a structurally deficient bridge (B498) on 143rd Street East over a tributary to Spring Branch in Sedgwick County, Kansas. The scope includes grading, surfacing, bridge construction (cast‑in‑place or precast concrete box), seeding, signing, pavement marking, traffic control, utility coordination, and environmental protection. The project is a small‑scale civil construction effort (~0.056 mi of roadway) with a low‑bid award of $484,595.50. • Core work: bridge demolition and construction of a multi‑barreled concrete box, plus related roadway and site work. • Materials: Grade 4.0 concrete, ASTM A615 Grade 60 reinforcing steel, epoxy‑coated reinforcement, granular backfill, and steel back‑wall protection. • Compliance: Must adhere to KDOT specifications, AASHTO LRFD loading, MUTCD traffic‑control standards, and seasonal environmental restrictions (no work in the wetted channel March 1‑May 31).