Bridge Improvements (B547)

This contract concerns a bridge deck‑overlay rehabilitation on the 375th St West bridge (B547) over the South Fork of the Ninnescah River in Sedgwick County, Kansas. The County’s Board of Bids and Contracts awarded the project to Dondlinger & Sons Construction Co., Inc. for a lump‑sum price of $339,245.15, which is $72,226 below the engineer’s estimate of $411,471. The work involves removal of the existing delaminated overlay, asphalt patching, and placement of a new concrete overlay to extend the service life of the bridge, which carries heavy‑truck traffic on the “M&M Road” corridor. The project is anticipated to take roughly 30 working days once construction commences, with the county preferring an early start to avoid winter‑related deterioration. • Scope: Bridge deck‑overlay (remove old overlay, install new concrete overlay) on a 0.129‑mile bridge. • Procurement: Open competition (62 vendors invited), bid bond required (5 % of bid). • Award: Single‑vendor award to Dondlinger & Sons at $339,245.15; contract value is under the engineer’s estimate.