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OUR PROJECT EXPERIENCE

SPRINGFIELD METRO SANITARY DISTRICT

The Springfield Metro Sanitary District (SMSD) received notification from the Illinois Environmental Protection Agency (IEPA) in June of 2005 that there would be a notice of Pending Restrictive Status to their plant at Spring Creek (a facility on restricted status cannot increase loading, which would prevent all commercial and residential growth within District boundaries). The plant was operating in excess of its organic design capacity. A Facilities Plan Report was developed and became the roadmap to guide future development needs, including an upgrading of the Spring Creek Plant. A new facility was proposed for construction adjacent to the existing plant which would increase treatment capacity by 32 million gallons per day (MGD) on average, and provide an additional 80 MGD at peak flow.

The project resulted in impacts to the floodway of Spring Creek, a small adjacent wetland, and an ephemeral tributary to Spring Creek. Prairie Engineers staff, while with a former employer, provided the environmental surveys, permitting support, mitigation design assistance, and construction observation over the first four phases of construction on the new facility. Mitigation included creation of a 4-acre wetland complex containing two permanent pools, stabilization of several hundred feet of Spring Creek (on an unstable outside bend), installation of several hundred feet articulated concrete mat as part of a bioswale, relocation of approximately one thousand linear feet of the unnamed tributary, and removal of approximately thirty acres of agricultural properties from production and converting them to forest.

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Allen Road Drainage Design

Springfield Metro Sanitary District: Sugar Creek

Camp Lincoln Parking Lot

Dekalb Taylor Airport Drainage Study

The Grove/Kickapoo Creek

Gregory Drive Reconstruction Survey

Pulaski Street

Indian Creek Covered Bridge

City of Lincoln Roadway Condition Index

Ameren Vegetation Management Survey

Galesburg ADA Improvement Survey

Boundary Surveys at Airports

US Route 20 4(f) Report

Dubuque Mitigation Monitoring

USACE Levee Inspections

St. John's Hospital Parking Lot Permitting

Lincoln Engineering Program Management

Northeast Missouri Regional Airport Permit

City of Lincoln GIS Sewer Inventory

Stout Field

Missouri River Hydrogeomorphic Study

Alexander Lumber ALTA

Peoria City/County Landfill Surveys

Sterling Riverfront

Fifth Street Road Reconstruction

Rural Fifth Street Road Right-of-way Appraisals

Lincoln TIF District

Lincoln Park District Parking Lot

Palestine Streetscape

USACE Levee Surveys

Muscatatuck Urban Training Center

Lincoln Downtown Revitalization

Southern Illinois Airport Stormwater Detention Design

Chicago to Quad Cities at Grade Rail Crossing Surveys

Quincy Bridge Replacement

City of Waggoneer Grant Administration Project

Parkwood Prairies

Lincoln Capital Improvement Plan

Macon County Conservation District Master Plan Update

Litchfield Streetscape

Springfield Metro Sanitary District

Adams Electric Cooperative

Iowa Interstate Tree Density Survey

Abraham Lincoln Memorial Hospital Water and Sewer Main Extention

Savannah Riverport Railroad Yard Surveys

Traffic Noise and Vibration Technical Experience

Lincoln Distribution Center of Illinois - American Water Company

Aviation Boundary Surveys

Camp Butler National Cemetery

Lincoln Station Boundary Survey

Cardinal Hill Road

Central Illinois Ag Survey

Illinois American Water High Speed Rail Crossing