Long Branch 71, located in Johnson, Nebraska, is a crucial earth dam designed for flood risk reduction by ASSOCIATE ENGINEERS INC. and the USDA-NRCS. Completed in 1980, this dam stands at a height of 32 feet and has a maximum storage capacity of 980 acre-feet. With a drainage area of 2.5 square miles, Long Branch 71 plays a vital role in protecting the surrounding area from potential flooding events.

Managed by the Nebraska Department of Natural Resources, Long Branch 71 has been deemed satisfactory in its condition assessment as of April 2019. The dam's structural height of 32 feet and hydraulic height of 31 feet contribute to its effectiveness in flood risk mitigation. With a surface area of 24 acres and a normal storage capacity of 98 acre-feet, this dam serves as a critical infrastructure in safeguarding the local community from potential water-related disasters.

As a significant component of the flood risk reduction system in the region, Long Branch 71 undergoes regular inspections every three years to ensure its structural integrity and functionality. With its strategic location along Long Branch, this earth dam stands as a testament to effective water resource management and climate resilience efforts in Nebraska.