Projects

Gravois Greenway – Grants Trail to RDP – St. Louis City and County, MO

Great Rivers Greenway District

This project included a 2+ mile extension of a multi-use trail which connects Gravois Greenway Grant’s Trail from the Mysun trailhead at Orlando’s to the River Des Peres Greenway.  Reitz & Jens provided all civil, geotechnical, and water resources engineering services during planning, design, and construction, acted as regulatory liaison for all civil engineering aspects of the project, and provided civil and geotechnical quality control services during construction. The project was awarded ASCE’s 2022 Engineering Excellence Award.

The project required evaluation of alternative alignments through fully developed areas of St. Louis City and County including residential, commercial, industrial, and institutional land uses, as well as private, local, and state highways, active railroads, major public utilities, and Gravois Creek and the River des Peres.  Community Relations aspects included helping to organize GRG’s Community Advisory Committee process, multiple public meetings as well as outreach to individual stakeholders.  The project was built in three (3) phases meeting different contract and specification formats including Phase 2 which received Federal Aid with GRG as the Local Public Agency (LPA).  The project included two bridges, a tunnel, a boardwalk, over 45,000 square feet of retaining walls up to 15 feet high, water quality improvements, and geotechnical mitigations.  Over half of the alignment was in the MoDOT right-of-way and required additional coordination for utility relocations, approvals, and licensing.   

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