![]() ![]() The district is comprised primarily of the State of Minnesota’s original land acquisition for the flood control project (about 22,800 acres) plus about 2,500 additional acres historically associated with the project. The boundary is shown by the hatched gray line on Map 2 of this report. The recommended boundary of the historic district encompasses about 25,000 acres and is about 61.5 miles long. Gemini Research recommends that all but the northwestern one mile of the project retains historic physical integrity and is eligible for the National Register as the Lac qui Parle Flood Control Project Historic District. It extended along the Minnesota River for about 62.5 miles, and also included a 6-mile diversion of the nearby Chippewa River. The flood control project was originally about 62.5 miles long. ![]() Paul, is a major tributary of the Upper Mississippi River. (See Map 1.) The Minnesota River, which extends 340 miles across the state from Browns Valley to St. This project is funded with 2019 Emergency Supplemental Funding.OVERVIEW OF THE LAC QUI PARLE PROJECT 4.1 OVERVIEW OF THE LAC QUI PARLE PROJECT Project Location and Historic District Boundaries The Lac qui Parle Flood Control Project is located on the upper Minnesota River in west central Minnesota between the towns of Odessa and Granite Falls. The dam is part of the Lac qui Parle Project authorized by the Flood Control Act of 1936 (Public Law 74‒738), Funding ![]() As a result of the fact that the spillway was constructed by the WPA and is eligible to be listed on the National Register of Historic Places, State Historic Preservation Office coordination is required. The second phase of the project will be to utilize an A-E firm to develop the plans and specifications and subsequently advertise the project for construction and award a project. Paul District developed a scope of work for an Architect and Engineering (A-E) firm to evaluate the options for the project and recommend alternatives. The result is that the grouted rip rap failed by water entering cracks along the road shoulder and eroding the road shoulder and supporting soils under the rip rap. While the spillway has experienced overtopping events in 1997, 2001, 2009, 2010, 20 the spring flood of 2019 was the longest duration event. The bituminous surface of County Hwy 33 makes up the top of the spillway. The dike and emergency spillway is a 2,500 foot earthen structure with a concrete I-wall on the upstream side to control seepage and hand-laid grouted rip rap on the downstream side to reduce scour. The original authorized purposes were water conservation and flood control, but it is currently operated to include recreation, fish and wildlife, as well as water supply. Operation of the project was transferred from the state of Minnesota to the U.S. Like the rest of the Lac qui Parle flood damage reduction project, the dam and spillway construction was performed by the Work Progress Administration (WPA). The damaged area of the spillway extends approximately 2,500 feet from the dam. The dike and emergency spillway is adjacent to and west of the dam between the dam and County Hwy 75. The dam is about 7 river miles upstream of Montevideo, Minnesota. The Lac qui Parle Dam is located on the upper Minnesota River 30 miles east of the South Dakota border. The overtop elevation of the spillway is 940.75 feet. The Lac qui Parle dike and emergency spillway is designed to retain the Lac qui Parle Reservoir during times of flood but is designed for over topping during extreme events. ![]()
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