Flanagan Lake Flood Control Reservoir and Recreation Area

Flanagan Lake Flood Control Reservoir and Recreation Area

Flanagan Lake Flood Control Reservoir and Recreation Area

To alleviate flooding concerns that have loomed large over Nebraska’s largest metro area, the Papio-Missouri River Natural Resources District partnered with HDR to design a $44 million, one-of-a-kind park and dam in Omaha’s northwest suburbs. Named for Father Edward Flanagan, the area will hold true to his notion of providing family-centered entertainment. 

The nearly 1,500-foot-long dam will create a 220-acre lake, capable of holding 1.3 billion gallons of flood water. The dam structure will not only provide safety during heavy rains and storms, but spurred development in the area.

Combatting poor subsurface conditions and slope stability concerns at the dam and roadway embankments, the team built each structure in multiple phases, allowing successive compression and settlement to occur prior to reaching their final heights.

The project did more than transform the space aesthetically — it created a new, sustainable ecosystem. The 475 acres of green space and nearly 100 acres of wetlands offer a home for migratory birds and fish. Seeded with native plants and grasses while incorporating an upstream water quality basin and reusing materials throughout construction allowed the team to save money and minimize environmental effects.

Although the city and P-MRNRD held an official ribbon cutting in June 2018, it didn’t take an official event or a ribbon cutting to get people out to the Omaha area’s newest lake. Kayakers and boaters floated and fished behind the ribbon cutting, already enjoying the lake.

Flanagan Lake Flood Control Reservoir and Recreation Area
Client
Papio-Missouri River Natural Resources District
Location

Omaha, NE
United States

Size
1,500-foot-long dam; 220-acre lake

Awards

Honor Award (2019)
Engineering Excellence Awards
American Council of Engineering Companies of Nebraska