Hyrum Dam Spillway Replacement   5

Background
The Hyrum Dam Spillway Replacement Project is issued by the Bureau of Reclamation, which is responsible for managing water resources in the western United States. The mission of this project is to construct a new spillway and remove the existing one to enhance water management and safety. The goal is to ensure the structural integrity and operational efficiency of the dam, located approximately 9 miles southwest of Logan, Utah in Cache County.

Work Details
The scope of work includes:

- Removal and control of water;
- Construction of a new reinforced concrete spillway;
- Creation of a riprap outlet channel and inlet area;
- Installation of associated mechanical and electrical features;
- Development of drainage systems;
- Construction of foundation aggregate piers;
- Building a roadway bridge;
- Installation of a gate hoist structure and equipment;
- Installation of radial gates;
- Construction of an embankment dike;
- Creation of new inverted siphons for irrigation canals;
- Development of an administrative access road and drainage;
- Roadway realignment;
- Excavation and removal of the existing spillway structure.

Additional tasks include mobilization, preparatory work, removal and disposal of existing features, concrete forming, reinforcing, cast-in-place concrete work, precast concrete deck panels, electrical system installation, and various supplementary well installations.

Period of Performance
The contract will be performed from March 7, 2025 to January 26, 2029.

Place of Performance
The construction projects will take place approximately 9 miles southwest of Logan, Utah in Cache County.