Name of the Project
Isabella Lake dam modification.

Location
Sacramento, California, in the US.

Client
US Army Corps of Engineers Sacramento District.

Project Description
The project aims to address issues identified with the main and auxiliary dams to reduce the likelihood of dam failure.

Construction at the main dam will include:
• excavation of a new emergency spillway;
• modifications to the existing service spillway; raising the main dam by about 5 m;
• modifications to California State Route 155 at the main dam’s right abutment; and
• modifications at several recreation facilities north of the auxiliary dam.

Potential Job Creation
Not stated.

Value
The contract is valued at $204-million.

Duration
Construction is expected to start this year and to be completed by 2022.

Latest Developments
The Flatiron/Dragados/Sukut Joint Venture (JV) of Benicia has been awarded the contract to build modifications to the Isabella Lake dam.

Key Contracts and Suppliers
Flatiron/Dragados/Sukut JV of Benicia (Isabella Lake dam modification).

On Budget and on Time?
Not stated.

Contact Details for Project Information
US Army Corps of Engineers Sacramento District, Tyler Stalker, tel +1 916 557 5107 or email tyler.m.stalker@usace.army.mil.