LMRDP Tunnel Dewatering Pump Station –
    St. Louis, MO

    Metropolitan St. Louis Sewer District (MSD)

    EDSI, as a subconsultant, was involved in two phases of this project just north of MSD’s Lemay Wastewater Treatment Plant. The initial project involved designing the initial site grading, plus over 2,300 lineal foot of storm sewers ranging in size from 48” to 15”, and the demolition of remaining foundations and other features at the site of the former Defense Mapping facility. EDSI’s portion of the next phase of the project included the design of 1,205 lineal foot of 12’ storm sewers, and 21 storm structures, 509 lineal foot of 8” and 12” sanitary sewers and 6 sanitary sewer structures, in addition to design of final grading, site roadways and paving, potable and fire water mains, and natural gas main relocation.

    Route E – Joachim Creek Stabilization – Jefferson County, MO

    Missouri Department of Transportation (MoDOT)

    EDSI has been selected by MoDOT as the prime consultant for both the study and final design phases of an embankment stabilization project along Route E in DeSoto, Missouri. The existing embankment for Route E is being scoured for several hundred feet by flow in Joachim Creek. The study phase of the project, which has been completed, involved field survey of Joachim Creek and Route E, along with geotechnical investigation (performed by others) to determine the cause of the scour and enable development of viable solutions with budgetary cost estimates. Once review of the study was completed by MoDOT, final design was awarded to EDSI which will include additional survey over an extended length of Joachim Creek; hydraulic modeling; preparation of right-of-way and design plans, job special provisions, and cost estimates; and the preparation of easement documents. EDSI’s responsibilities include permit application assistance and coordination with local, state and federal agencies, and the staking of easements and right-of-way.

    Lemay Redundant Water Service – St. Louis, MO

    Metropolitan St. Louis Sewer District (MSD)

    EDSI is currently designing a pair of water service projects for MSD’s Lemay Wastewater Treatment Plant. One involves a 120 lineal foot extension of an existing 8” Missouri American Water Company main plus a 300 lineal foot 6” service that will provide a redundant supply to the plant. The second design involves 520 lineal foot of 8” fire water service that will create a looped fire protection system by connecting two existing dead-end fire service mains. EDSI is a subconsultant for this project.

    Central Fields Athletic Field and Support Facility Upgrades in Forest Park – St. Louis, MO

    City of St. Louis, Board of Public Service

    The Central Fields-Athletic Field and Support Facility Upgrades and Streetscape Improvements project included improvements along McKinley Drive (Wells to Union), Macklind Drive (Union to Wells), Union Drive (Theatre to McKinley), and Wells Drive (Macklind to Jefferson) located within Forest Park in St. Louis, Missouri. The fields were designed to better accommodate large yearly events. Proposed upgrades to comfort stations were completed as part of the project, along with improving pedestrian trail connections and access routes. Coordination with MSD regarding the drainage was a critical part of the project. As a subconsultant, EDSI completed roadway design tasks and led the drainage design which included a pair of bioretention basins. EDSI was also responsible for the topographic surveys and mapping.