2/6/07 Update on Levee
Indianapolis North Flood Damage Reduction Project, DPW Project No. LD-11-084
The project is located in metropolitan Indianapolis, IN along the northern reaches of the White River within Marion County.
The levee will be constructed in three sections ?– South Warfleigh, Warfleigh and Monon-Broad Ripple Sections. The project segments are hydraulically linked, necessitating construction of all phases in order to successfully protect and remove approximately 2400 properties from the 100-year floodplain. In addition, the project includes installation of an in-river flood warning system and environmental mitigation at Lake Sullivan.
The Warfleigh Section (Phase IIIA) completed in 2004 consisted of the construction of a 7600-foot floodwall/levee on the existing Warfleigh levee. This section of the project covered rehabilitation of the existing Warfleigh between Kessler Boulevard West Drive and North College Avenue. The completed work included excavating a 20-foot wide construction surface on the existing levee, construction of approximately 7070 linear feet of floodwall, 530 linear feet of earthen levee, approximately 7600 linear feet of toe drain, and seeding and landscaping. The existing Warfleigh Pumping Station, located along this section of the levee, underwent a substantial rehabilitation as part of this phase of the Indianapolis North project.
The South Warfleigh Section (Phase IIIB) will involve construction of approximately 4100 linear feet of floodwall from the Riviera Club to Kessler Boulevard. The final alignment of the floodwall is presently under evaluation. The South Warfleigh Section will also include construction of approximately 3000 linear feet of a ?½-foot to 1 ?½-foot high decorative wall adjacent to the towpath of the Indianapolis Water Company Canal. This short wall is necessary to provide the designed flood project protection for the project. Final design of this segment of the project is nearing completion.
The Monon-Broad Ripple Section (Phase IIIC), currently under construction, extends from North College Avenue to high ground just upstream of the intake of the Indianapolis Water Canal. The Broad Ripple portion of this section extends approximately 1500 feet from College Avenue, along the south side of 67th Street, to the existing Monon East Levee. The Monon portion of this segment extends approximately 3200 linear feet across the existing levee and ties into the roadway embankment of Westfield Boulevard. From the southeast side of Westfield Boulevard, the project parallels both Westfield Boulevard and the White River to high ground near the intake structure of the Indianapolis Water Canal. A key component of the project is modification of the Indianapolis Water Canal intake gate structure. The modifications will integrate the intake structure into the flood works, thereby safeguarding a major drinking water supply system for the City. The construction contract award certification was completed in September 2006.
Costs
The project will cost approximately $19.0 million. The non-Federal sponsor, the City of Indianapolis, Indiana, will pay 25 percent of project costs or $4,750,000 with a Federal contribution of 75 percent or $14,250,000.
Sponsor
Consolidated City of Indianapolis and Marion County, Indiana
Contractors
Phase IIIC - Bowen Engineering Corporation, Fishers, Indiana
Phase IIIB - To be determined