Civil Engineering

Site Development Having over 60 years of regulatory expertise in site development, Gredell Engineering is highly qualified to provide code review of subdivision and site development plans with a thorough understanding and proper interpretation of a wide variety of regulations. Site development experience includes subdivision developments and commercial facilities. Stormwater Management Stormwater management encompasses services from collection and treatment to Missouri Department of Natural Resources’ (MDNR) permits and required reporting. Gredell Engineering staff have designed stormwater diversions, conveyances, holding ponds, detention ponds and culvert structures. Wastewater Collection & Treatment The Missouri Department of Natural Resources’ (MDNR) requires consideration of no-discharge treatment when permitting new, expanded or upgrades systems. Our wastewater experience is highlighted by upgrades to wastewater collection systems, biosolids evaluation and ultraviolet (UV) disinfection system for municipal treatment facilities, and design and permitting of small commercial and single-family no-discharge treatment systems. Water Supply & Distribution Our staff have the technical expertise to design your water supply and distribution network. Whether it's a connection to a public water supply (PWS) or to a drilled water well, Gredell Engineering can provide the necessary services to connect to a PWS and perform the hydraulic design and analysis, layout, well design, well site survey, and casing depth request. Transportation The staff at Gredell Engineering have successfully completed bridge designs and municipal roadway projects for subdivision development as well as rehabilitation and reconstruction of collector streets, minor arterials, major arterials and sidewalks involving Americans with Disabilities Act (ADA) compliance. Our engineering expertise, skills and construction experience allow us to quickly identify and understand the interaction of the various factors affecting performance, and to typically provide multiple service level alternatives. Construction Services A well-planned project helps the design and construction team develop practical and efficient services. Gredell Engineering’s experience provides relevant guidance and construction management. Gredell Engineering’s experience includes construction documents; cost analyses for budget development; construction contract administration; construction bidding, plans and specifications; bid evaluation and qualification of contractors; surveying; construction quality assurance and oversight representation; ordinance and code consultation; and site and plan reviews.


  • 2020 MWEA/AWWA Joint Annual Meeting Cancelled

    Unfortunately, due to the increasing COVID-19 infection rate, employer travel restriction, and Read More

  • Pendergrass Joins Gredell Engineering

    Gary Pendergrass, P.E., R.G., recently joined the staff of Gredell Engineering as a Senior Project Read More

  • Gredell Engineering Continues Internship Program During COVID-19

    Chandler Olmsted recently joined the staff of Gredell Engineering as an engineering intern. Chandler Read More

  • Elke Boyd to Present on Water Upgrades at the 2020 MWWC Joint Annual Meeting

    Elke B. Boyd, P.E., BCEE, Senior Civil Engineer with GREDELL Engineering Resources, Inc., will be Read More

  • Elke Boyd Presented on Wastewater Irrigation at MRWA Northeast Training Day

    Elke B. Boyd, P.E., BCEE, Senior Civil Engineer with GREDELL Engineering Resources, Inc., presented Read More

  • Abra Spisso Joins Gredell Engineering

    Abra Spisso, recently joined the staff of GREDELL Engineering Resources, Inc. (Gredell Engineering) Read More

  • City of Lanagan Obtains Grant Funding for Water System Upgrades

    “Access to clean, safe drinking water and reliable, modern wastewater treatment is a necessity Read More

  • Staff Attend MWCC Conference

    GREDELL Engineering Resources, Inc. staff recently attended the 2019 Missouri Waste Control Read More