STORMWATER Services

  • Hydrologic Design
  • Hydraulic Modeling (XP-SWMM, HEC-RAS, HEC-HMS, HEC-GEORAS)
  • Master Planning
  • Storm Sewer System Design
  • Water Quality Modeling and Design
  • Sediment Transport
  • Floodplain Analysis
  • Permitting (404, 401, Floodplain)
  • Bridge/Culvert Hydraulics

» stormwater Projects

Cole Creek Flood Reduction – Elm TO Runnymede

M3 Engineering performed an alternatives analysis and design to alleviate flooding of residential and...

Essex Creek Stormwater Study and Streambank Stabilization

After complaints of flooding along Essex Creek, a tributary to Midland Creek in Maryland Heights, MO,...

Stagecoach Drive Streambank Stabilization

M3 Engineering designed biostabilization streambank restoration for 1,100 feet of failing stream in...

Streambank Stabilization Contract B

Metropolitan St. Louis Sewer District contracted M3 Engineering Group to perform geomorphic assessments,...

Regional Stormwater Detention Facilities

Under the Consent Decree, MSD is required to spend $230M in the combined sewer area. To prevent surface...

Hall Street Storm Sewers

Stormwater flooding has been a problem along Hall Street since the 1950s, when the development of the...

Stormwater Master Plan Pilot Study. Village of Hardwood Heights

The I-270 North Design Build Project will improve safety and reliability along the interstate from...

Stormwater Planning GSA​​

M3 Engineering was part of the team that provided planning and design services to solve various stormwater...

St. Ann Environment Assessment

The City of St. Ann, MO identified the need to improve the transportation facilities in a corridor area...