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DNRC Headquarters
1539 Eleventh Ave. Helena, MT 59601
Phone: (406) 444-2074 | Fax: (406) 444-2684
Questions? Email us

Dam Safety

Tongue River Dam

The Dam Safety Program regulates the construction, operation and maintenance of Montana's dams to protect life and property from damages due to failure. The dam safety program also provides training and outreach to dam owners and engineers and assists with emergency preparedness activities.

Is Your Dam Above Homes, Highways, or Other Structures?

News and Announcements

In 2016, the Montana Dam Safety Program assembled a group of experts to evaluate our methodology for determining the inflow design flood for dam spillway analysis in MT.  This report summarizes the groups finding and recommendations.

Before moving forward with an update from the recommendations of the ESWG, we would like to provide the engineering community involved in dams in MT the opportunity to comment.

We respectfully request your feedback by Friday, March 3rd, 2017.  Please send your comments directly to with the subject line ESWG Report Comments.

Click on the picture below to download a copy of the summary report.

For Dam

Dam Owners

Technical References

Permitting Your
Existing Dam
Permitting Exisitng Dams

Proposing to
Build a New Dam
Building a New Dam

Planning for a
Dam Emergency
Planning for a Dam Emergency

Proposing to Repair
an Existing Dam
Repair an Existing Dam

Rules and

Rules and Regulations

Image and
Video Gallery

Filing a Dam
Safety Complaint


Cool Tools
Cool Tools 

Archive (Past Issues)

*NEW* Vol. 4 Issue 2 Dam, You're Getting Old! - Understanding and Managing the Risks of Aging Dams, Retrofitting Old Dams to Address New Hydrologic Inadequacies, Internal Erosion: Issues Just Below the Surface

Contact Dam Safety

Dam Safety
DNRC Water Resources
1424 9th Avenue
PO Box 201601
Helena, MT 59620-1601

Bureau Chief
(406) 444-6816

Michele Lemieux, PE
Dam Safety Program Manager / Civil Engineer
(406) 444-6613

EAP Coordinator /
Dam Safety Outreach
(406) 444-9362

Chadrick Hill 
Civil Engineering Specialist
(406) 444-1358

Administrative Support
(406) 444-0862

Engineering Specialists
Regional Office Map 

Helena Regional Office
(406) 444-9724

Havre Regional Office
(406) 265-5516

Sam Johnson, EI
Billings Regional Office
(406) 247-4423

Larry Schock, CFM
Missoula Regional Office
(406) 542-5885

Marc Pitman, PE CFM
Kalispell  Regional Engineering Specialist
(406) 752-2713

Sterling Sundheim, CFM
Lewistown Regional Office
(406) 538-7459