Meramec Greenway: Meramec Bridge Feasibility Study

Project Overview

This project is studying the feasibility of a walking and biking bridge over the Meramec River linking Unger County Park and Greentree Park, which could create a vital connection between two sections of Meramec Greenway on either side of the river, from Valley Park/Simpson County Park/Greentree Park to Unger County Park/Fenton City Park/George Winter County Park.

A feasibility study is a comprehensive assessment of whether a bridge is practical and has the potential for success (based on technical, physical, financial, and environmental measures). The study investigates components like location, flooding impacts, tree removal impacts, connectivity, surrounding land use impacts, park and greenway usage, aesthetics, and more.

This feasibility study is building off of an initial flood study conducted between 2023 and 2024 during the Unger Park Trail realignment project. This was to determine if construction of a bridge over the Meramec River from Unger County Park to Greentree Park could meet a “No-Rise” requirement along this regulated floodway. A “No-Rise” certification confirms that a proposed project within a Federal Emergency Management Agency (FEMA) floodway will not increase the Base Flood Elevation (BFE) or the 100-year water surface elevation. The draft study from 2023/24 has determined that a bridge could be constructed and meet the “No-Rise” requirement.

The current feasibility study also ensures community input continues to be a priority (as it is in all greenway projects!), with public work sessions and open houses for community members and greenway users to attend, as well as meetings with city leaders. The feasibility study will culminate in a report with final recommendations from the project team on if and how this project could move forward. GRG and our project partners will assess this report and determine any next steps at that time.

Project Location

This project is exploring the potential for a pedestrian bridge connection over the Meramec River between the existing Meramec Greenway in Unger Park in Fenton and Greentree Park in Kirkwood.

Project Partners

Current Status

Map + Concept Renderings

Community Feedback: Shaping the Greenway

We hosted an open house in Fenton on May 26, 2026 to share information about the feasibility study and gather feedback from the public. If you missed the open house, you can watch the presentation, view the display boards, or review the presentation powerpoint document below. A public survey was open between May 26 and June 19; the results of this survey can be reviewed below.

Respondents overwhelmingly viewed the proposed bridge as an opportunity to improve regional trail connectivity by linking existing greenways, parks and communities. Many described the connection as long overdue and said it would encourage more walking, running and cycling by providing a safer alternative to traveling on busy roadways. Participants also highlighted the value of creating longer, continuous trail experiences between Fenton, Valley Park, Kirkwood and surrounding areas.

While support for the project was strong, respondents also encouraged Great Rivers Greenway to continue evaluating flooding, environmental impacts, wildlife, maintenance responsibilities and project costs. Several suggested studying alternative alignments or incorporating existing infrastructure where feasible.

When discussing amenities, respondents most frequently favored features that enhance the trail experience while preserving the area’s natural character. Places to take in the view, to rest and to stop and refuel received the strongest support. Additional suggestions included restrooms, drinking water, wider pathways, viewing areas and accessible connections for pedestrians and bicyclists. A smaller number of respondents preferred a simple design with minimal amenities beyond those needed to support trail users.

Participants also recommended continued outreach to a broad range of stakeholders, including local governments, parks departments, local businesses, environmental organizations, recreation/sports groups, trail users, transportation agencies and nearby residents. Several also identified opportunities for partnerships with local employers and community organizations.