Flooding and drainage issues were challenging enough when you just had to contend with Mother Nature. Now water quality standards and public involvement have elevated the need for regulation-conscious solutions. At BLA we’re learning to mimic Mother Nature using sustainable approaches that keep everyone happy. Services include:
- Drainage System Modeling Including Control Systems & Detention Basins
- Design of Drainage Channels, Pipe Networks, Control Structures & Retention/Detention Facilities
- Survey, Mapping & GIS Development
- Water Quality Improvement & Conservation
- Stormwater Management
- Hydraulic Studies
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- Flood Studies
- Floodplain Study for Vanderburgh Industrial Park, Evansville, Indiana
Client: Evansville Industrial Foundation
The Vanderburgh Industrial Park was a cooperative venture between the Evansville Industrial Foundation and Vanderburgh County to respond to the local real estate market’s need for relatively large, fully-developed and ready-to-go industrial sites. The park is located in a flood-prone area so BLA prepared drainage, floodplain, and floodway studies in order to design the storm sewer system and to delineate the floodplain and floodway for the park. A floodway study was also prepared that included extensive hydraulic modeling of more than a mile of streams.
Storm Sewer Design- 62nd & Rucker Road Storm Sewer Drainage Report, Indianapolis, Indiana
Client: Indianapolis Department of Public Works
The intent of the project was to develop a plan and engineering design to eliminate flooding and stormwater quality impacts to Rucker Road and adjacent property owners. The project consisted of a fairly narrow drainage area through a residential neighborhood with a commercial development in the upper reaches of the drainage area. Besides eliminating flooding over Rucker Road and private residential properties, the city was interested in a sound engineering solution that included landscaping and bioengineering elements to allow the improvements to fit naturally into the neighborhood. Therefore, the Best Management Practice included landscaping designs that are not only attractive but provide flooding and stormwater quality controls.
- St. Joseph Avenue Storm Sewer Design, Evansville, Indiana
Client: Evansville Board of Public Works
 This storm sewer system was designed to alleviate sewer flooding during heavy rains in the neighborhood of St. Joseph Avenue and Maryland Street on the west side of the city. Initially, a hydraulic study for this section of the city was conducted that included Helfrich Golf Course in a 1.3-square-mile drainage area of hilly terrain and urban development. The report offered several alternatives to improve the storm sewer system. The city selected an alternative that called for running a trunk line 5,800 feet long starting on the west side of a municipal golf course running along several streets to an outfall at Pigeon Creek. The design called for steel reinforced concrete pipe with an inside diameter of 8 feet to run under Virginia Street starting at St. Joseph Avenue and running 3,000 feet. From that point, design involved an 8-foot steel pipe to be installed under the CSX railroad tracks using tunneling methods. Four 125-ton, 9-foot stroke hydraulic jacks were used to push the steel pipe horizontally under the railroad tracks. The steel pipe terminates at a 33-foot-long concrete outfall structure at the top of the bank of Pigeon Creek. The structure will dissipate and control storm sewer flow of approximately 134,600 gallons per minute.
This effort also included design of a series of drainage ponds adjacent to the golf course to help alleviate area flooding. BLA suggested using the excavated ground from the ponds to enhance the course and worked with the city’s Parks & Recreation Department to design a series of mounds and new tee-boxes to complement the attractive and functional new water hazards.
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