Water Resources Projects

Streambank Stabilization: Evaluated streambanks for erosion that compromised the capacity of the downstream water supply (Lake Perry Reservoir) and eroded farm fields.  Over 40 sites have been assessed, surveyed, designed, permitted and successfully constructed.  Over 15 miles of streambank and over 150 acres of riparian habitat have been restored.

Digital Flood Insurance Rate Map and Flood Insurance Study: Gredell Engineering staff successfully completed a Digital Flood Insurance Rate Map (DFIRM) and Flood Insurance Study (FIS) report for Butler County, Kansas, the largest county in Kansas.  Hydrologic analyses were completed for approximately 1,065 square miles of flooding sources with greater than one square mile of drainage area.  Peak flood discharges were calculated for the one-percent annual chance storm events for all streams with drainage area greater than one square mile.  Hydraulic analyses were performed with modeling that includes the one-percent annual chance storm events, based on peak discharges computed in the hydrologic analyses.  Cross section and field data were used to perform the hydraulic analyses.

Lake Shoreline Stabilization: Gredell Engineering staff successfully prepared engineering design, plans, and specifications for the stabilization of an approximately 900-foot section of shoreline on the edge of Thomas Hill Reservoir that was being undercut by wave action.  The design also included a jetty to protect a marina cove.  Prepared base mapping for the project, identified the geometry of the slope failure zone and subsurface conditions critical to design and construction, and prepared construction documents for bidding purposes in order to complete the stabilization work with limited construction oversight.

Road Failure from Streambank Erosion: Gredell Engineering staff successfully prepared engineering design, plans, and specifications for the streambank stabilization of the Lincoln Street slope failure in Jefferson City, Missouri. Secured a U.S. Army Corps of Engineers (USACE) Nationwide 404 Permit (NWP) and prepared construction documents for bidding purposes in order to complete the stabilization work with limited construction oversight.  Performed a site reconnaissance, located utilities, arranged for the preparation of a project base map, performed a stream assessment, and conducted a subsurface investigation consisting of three geotechnical borings at the site of the roadway embankment failure.  Services also included evaluating streambank stabilization alternatives; evaluating the geometry and soil parameters of the slope failure surface; assessing the location of groundwater and evaluating its potential impact on geotechnical related design and construction; and evaluating the suitability of on-site materials for use as controlled fill.

References Available Upon Request

News

  • Gredell Engineering Corecipient of the 25th Annual Carl V. Anderson Conservation Engineering Project Award

    Natalie Little presents the Carl V. Anderson Engineering Project Award to the Missouri Department of Read More

  • Boyd Joins Gredell Engineering

    Elke Boyd, P.E., recently joined the staff of GREDELL Engineering Resources, Inc. as a Senior Civil Read More

  • Troesser Earns Professional Engineer License

    GREDELL Engineering Resources, Inc. is proud to announce that Zachary Troesser is now licensed as a Read More

  • Koestner & Roberts Attend Transportation Engineers Association of Missouri 2017 Conference

    Gidget Koestner, P.E., and Rickie Roberts, P.E., of GREDELL Engineering Resources, Inc. (Gredell Read More

  • Rackers & Roberts Attend EUCI Coal Combustion Residuals Conference

    Andrew Rackers, P.E., and Rickie Roberts, P.E., of GREDELL Engineering Resources, Inc. (Gredell Read More

  • Doll Earns Onsite Soil Evaluator Certification

    GREDELL Engineering Resources, Inc. is proud to announce that Travis Doll, R.G., R.E.H.S., Read More

  • Walden Joins Gredell Engineering

    Connie Walden, Ph.D., E.I., recently joined the staff of GREDELL Engineering Resources, Inc. Read More

  • Gredell Engineering Project Reported in Design Cost Data Magazine

    The January/February 2018 edition of Design Cost Data magazine featured William Woods Read More

  • MWCC Rule Changes & Highlights from 40 Years of RCRA

    John Browning, PE, of GREDELL Engineering Resources, Inc. recently attended the Missouri Waste Read More

  • Solid Waste Management Program Open Forum

    Mike Carlson, R.G., Rick Roberts, P.E., Ken Ewers, R.G., and Andrew Rackers, P.E., of GREDELL Read More

  • Kansas City Metro Office Relocation

    “Relocating our branch office in the Kansas City metropolitan area is an opportunity to Read More

  • Dawson & Carlson Named Corporate VPs

    GREDELL Engineering Resources, Inc. (Gredell Engineering) today announced the promotion of Bruce Read More

  • Roberts Earns Lifetime Achievement Award

    Rickie L. Roberts, P.E., GREDELL Engineering Resources, Inc., received the Lifetime Achievement Read More

  • Staff Attend the Jefferson City 125th Annual Chamber Gala

    GREDELL Engineering Resources, Inc. staff attended the Jefferson City 125th Annual Chamber Gala and Read More

  • Ewers Elected to Serve as Secretary to the MWCC Board of Directors

    Kenneth A. Ewers, R.G., of GREDELL Engineering Resources, Inc., Jefferson City, MO, recently Read More

  • Doll Voted as Vice-Chairman by the Cole County OWTS Board of Review

    Travis Doll, R.G., R.E.H.S., GREDELL Engineering Resources, Inc. was elected to the position of Read More

  • Rood Joins Gredell Engineering

    Brent Rood recently joined the staff of GREDELL Engineering Resources, Inc. (Gredell Engineering) as Read More

  • Cossairt Joins Gredell Engineering

    James “Mick” Cossairt, R.G., recently joined the staff of GREDELL Engineering Resources, Read More

  • Gredell Engineering Assists MLPA with G-49 Stormwater Discharge Permit Evaluation

    GREDELL Engineering Resources, Inc. (Gredell Engineering) was recently engaged by the Missouri Read More

  • Christopher Pagel Joins GREDELL Engineering Resources, Inc.

    Christopher Pagel recently joined the staff of GREDELL Engineering Resources, Inc. (Gredell Read More

  • Roberts, Doll & Rackers Present at MWCC Environmental Conference

    Rickie Roberts, PE, Travis Doll, RG, REHS, and Andrew Rackers, PE of GREDELL Engineering Resources, Read More