With support from multiple federal and state agency grant programs, the City of Flint, MI, is renewing more than 5 miles of aging roadway and water main along Atherton Road and Dupont Street and has replaced the Carmen Creek Bridge along Atherton. The $32.8 million investment includes complete road reconstruction and storm sewer replacement, along with 26,370 linear feet of water main rehabilitation. Major project funding has come via the Federal Highway Administration’s (FHWA) Transportation Investment Generating Economic Recovery (TIGER) program with additional federal funding from the Water Infrastructure Improvements for the Nation (WIIN) Act through the Michigan Department of Environment, Great Lakes, and Energy (EGLE). Wade Trim has provided design, contract administration, and construction engineering and inspection on the project. We have also assisted with funding administration, helping fulfill various stakeholder, reporting, and programming requirements for both funding sources.

The project limits encompass Dupont Street between Pasadena and Bishop Avenues, and between Welch Boulevard and University Avenue; and Atherton Road from Van Slyke Road to Dort Highway. Preliminary engineering services for the roadway, bridge, and water main design included traffic and environmental studies, survey, and geotechnical investigations. Both four-lane roadways were reconfigured to three lanes with a dedicated left-turn lane to streamline traffic, and new bike lanes were designed in certain areas to provide an added buffer between traffic and bicyclists. Traffic signal and crosswalk modernization, ADA-compliant sidewalk ramps, and street lighting were also included. The existing bridge was completely removed, replaced, and widened to incorporate sidewalks.

Our construction engineering team has worked within an aggressive schedule that began in September 2019 and is slated for completion in September 2021. We have helped the City reduce costs and maintain schedule by adapting to unforeseen soil conditions and modifying design upon request such as reducing the diameter of a water main segment.