Water flowing over the new Crow Dam spillway

Programs

Safety of Dams Program

SOD oversees the Reservation’s 15 high-hazard dams with regular instrumentation data collection, inspections and performance evaluations.

The program

Inspections, evaluations and betterment

SOD oversees the Reservation’s 15 high-hazard dams with regular instrumentation data collection, inspections and performance evaluations to identify and implement maintenance activities as well as address necessary improvements leading to rehabilitation and betterment projects associated with the CSKT Water Compact.

In addition, SOD oversees the Bureau of Indian Affairs (BIA) National Monitoring Center (NMC) provides early detection and notification of unsafe conditions at 141 BIA High-Hazard dams. Early detection is conducted by monitoring individual dam Early Warning System (EWS) data that are transmitted to the BIA NMC located in Ronan, Montana. Data from EWS’s are then checked against predetermined criteria to determine if dam conditions pose a serious threat to residents downstream of the dams. If predetermined criteria are exceeded, notification either by computers or NMC personnel is made to proper authorities that can initiate actions described in the appropriate Emergency Action Plan (EAP).

Crow Dam spillway walls under construction beside the reservoir

15

Reservation high-hazard dams overseen by SOD

141

BIA high-hazard dams monitored by the National Monitoring Center

Contact

Safety of Dams staff

Our Work

Contractors List

Prospective contractors that bid on CSKT SOD/Roads Program construction projects will automatically be added to our Contractors List. All contractors are encouraged to call our office to check their status with us or to be added and/or removed from the list.

Note: Contractors that are currently registered with the Indian Preference Office are already on the list.

Dam safety projects

Rehabilitation and betterment

The completed Crow Dam spillway crest

Crow Dam Spillway

A new chute, flip bucket and piano key weir spillway crest replaced the badly deteriorated structures.

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Kicking Horse Reservoir and the Mission Mountains

Kicking Horse Dam Safety Upgrades

Kicking Horse Dam and outlet works was constructed in 1930 along with two dikes; the safety upgrades will modify and/or replace the aging infrastructure to current industry standards.

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Construction at Lower Crow Dam

Lower Crow Dam Safety Upgrade

Upgrades to the spillway, outlet works, and embankment stability during a probable maximum flood, all to address issues of the aging infrastructure (built in 1922).

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Resources

Safety of Dams documents

All documents & procurement

Bidding on SOD or Roads work?

Current and recently closed solicitations are listed on Documents & Procurement.