Eureka
Eureka's 'Goldilocks Approach' to Flood Mitigation Nears Completion
Strategic floodwalls aim to protect Old Town and critical infrastructure without adverse effects on surrounding areas
Mark Klipsch

Mark Klipsch

May 27, 2026

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In Eureka, Missouri, a comprehensive flood mitigation project is approaching its final stages, employing a 'Goldilocks approach' to safeguard the community from both flash floods and significant river overflows.

 

Mayor Sean Flower described the strategy as a balanced method that redirects water without causing harm elsewhere, effectively protecting essential areas.

 

The initiative involves constructing two floodwalls in key locations.

 

The first, nearly complete, focuses on the city's wastewater treatment plant, elevating its berms to shield against flooding from Forby Creek.

 

The second aims to protect Old Town's business district from Flat Creek overflows, which are often linked to rising levels of the Meramec River.

 

Residents have already observed positive changes.

 

Janet Wecker Frisch, owner of Great Joy Studio and The Maker, expressed gratitude for the improvements made in her backyard, noting that previous flash floods had reached the back of her building.

 

She hopes the current work will prevent future incidents.

 

Historically, Eureka has faced severe flooding, notably in 2015 and 2017, when record floods inundated downtown, necessitating high sandbag walls to protect local businesses.

 

These events have left business owners anxious during heavy rains.

 

However, recent efforts, including cleaning Flat Creek, have led some locals to feel that water levels are becoming more manageable.

 

The floodwalls are designed to act like stoppers in a tub, preventing water from reaching the wastewater treatment plant and Old Town.

 

While they aren't intended to stop major flooding from the Meramec River, they provide protection from backflow in the creeks and subsequent overflows.

 

Mayor Flower emphasized that the city studied larger flood mitigation projects but found that these strategic protections offered the best value and effectiveness.

 

The project has remained close to schedule and budget, thanks in part to cooperation from multiple property owners.

 

Funding for the floodwalls comes from the Proposition E sales tax and a matching grant from the state.

 

As the project nears completion, the community remains hopeful that this 'Goldilocks approach' will provide the right balance of protection without unintended consequences.

 

With the floodwalls expected to be fully operational soon, residents and business owners alike look forward to a future with reduced flood risks.

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