STORMWATER AND STREAMBANK STABILIZATION

KEI has performed dozens of the stormwater and streambank stabilization projects for park districts, cities, wastewater utilities throughout the Missouri/Illinois Region.

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SAPPINGTON CREEK RESTORATION
MEATH TO GRAVOIS
ST. LOUIS, MISSOURI

Kowelman Engineering, Inc., as sub consultant, performed surveying services for this Natural Channel Restoration Project along Sappington Creek, and its tributary, Musick Creek, (both creeks are tributaries of the Gravois Creek watershed).  Both Creeks, and most of their 1450± acre watershed, are in unincorporated portions of south St. Louis County.  The District’s preliminary design for this creek system includes a thorough evaluation of approximately 15,000 feet of channel and adjacent riparian area within this reach in order to develop pre-design documents for stabilizing this entire creek system.  Kowelman Engineering has supported this project by establishing primary control monuments for use on the planning, design and construction phases of the program; providing detailed topographic surveys of the bridge and culvert sections; surveying numerous creek channel cross-sections for hydraulic modeling purposes; and surveying the photo-identifiable points for use in preparing aerial topography over the entire watershed.

AIRPORT EXPANSION PROGRAM
STORMWATER TOPOGRAPHIC AND HYDRAULIC SURVEYS
LAMBERT ST. LOUIS INTERNATIONAL AIRPORT
ST. LOUIS, MISSOURI

Kowelman Engineering, Inc. was responsible for a detailed creek and bridge topographic and hydraulic surveys to assist in the design of the proposed stormwater improvements associated with the expansion program.  Kowelman Engineering, Inc. has performed the detailed topographic surveying for over 8500 feet of Coldwater Creek including the surveys of four large culverts and four major bridge hydraulic surveys at I-70, Natural Bridge Road and an Airport taxiway bridge, and 1200 feet of the enclosed culvert tunnels under the airfield.  In addition, Kowelman Engineering, Inc. has performed the surveying for over 2000 feet of Cowmire Creek.  Surveys of these creeks and structures have included cross-sections & detailed surveys of the structures, stream cross-sections, profiles and detailed topography for hydrologic and hydraulic analyses to assist in the design of improvements.

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JEFFERSON BARRACKS VA CEMETERY STORM WATER IMPROVEMENTS
VETERANS’ ADMINISTRATION

This project included the preparation of the improvement plans, cost estimates and technical specifications for 1000-feet of box culvert design to enclose a creek in the landscaped environment of the Jefferson Barracks National Cemetery. The project   included field surveys, the structural design of a double 7' x 10' box culvert and junction chambers; hydrologic evaluation of the entire drainage basin contributing to the creek; hydraulic design of the primary culvert and the various contributing side culverts and storm sewer systems. The project design was expedited to coordinate with an adjacent site improvements project and was completed 60 days ahead of schedule.