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Our Work 

Interstate Engineering offers a diverse selection of services. Highly experienced professionals provide our services with varied experiences. Combined with strong client-relationships, proven processes, and tools developed through years of project execution, our projects are comprehensive and meet the clients’ needs.

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Jamestown Airport
Jamestown Airport

This project included three sections, all with the goal of overall improvement at the Jamestown Regional Airport in Jamestown, North Dakota.

Mercer County Highway Department
Mercer County Highway Department

Interstate Engineering has proudly provided engineering, surveying, and planning services to the Mercer County Highway Department for over three decades.

Fergus Falls Library Expansion
Fergus Falls Library Expansion

The City of Fergus Falls recently completed a $9.4 million expansion of the public library.

Sidney Circle Water System Improvements
Sidney Circle Water System Improvements

Dry-Redwater Regional Water Authority (DRWA) has been expanding its presence in Richland County since the completion of their first project south of Sidney in September 2014.

GIS
GIS

Interstate Engineering is no stranger to Geographical Information Systems (GIS).

Rugby Water Treatment Plant Improvements
Rugby Water Treatment Plant Improvements

Finding funding sources is a constant challenge small communities face.

North Prairie Water District Improvements
North Prairie Water District Improvements

Finding funding sources is a constant challenge small communities face.

Glendive Sidewalk, Curb, & Gutter Improvements
Glendive Sidewalk, Curb, & Gutter Improvements

Finding funding sources is a constant challenge small communities face.

Pioneer Road
Pioneer Road

Finding funding sources is a constant challenge small communities face.

A Living Water Model
A Living Water Model

Finding funding sources is a constant challenge small communities face.

Crestwood Bear Den II Gas Plant
Crestwood Bear Den II Gas Plant

Finding funding sources is a constant challenge small communities face.

When the Chips Are Down
When the Chips Are Down

Finding funding sources is a constant challenge small communities face.

Master Lift Station Repairs
Master Lift Station Repairs

Finding funding sources is a constant challenge small communities face.

Lewistown Aquatics Complex
Lewistown Aquatics Complex

Sometimes communities are built around pools. Sometimes a community builds a pool. That’s what Lewistown did. 

Mitchell, Water Tower, & Jaycee Pool
Mitchell, Water Tower, & Jaycee Pool

Sometimes communities are built around pools. Sometimes a community builds a pool. That’s what Lewistown did. 

Fort Peck Tribes Comprehensive Economic Development Strategy
Fort Peck Tribes Comprehensive Economic Development Strategy

Fort Peck Tribes Comprehensive Economic Development Strategy 2021-2026

Old Poplar Airport Master Plan
Old Poplar Airport Master Plan

Old Poplar Airport Master Plan

Fort Peck Tribal Transit Plan
Fort Peck Tribal Transit Plan

A tribal transit plan, helping drive Fort Peck Tribes forward.

City of Sheridan Letter of Recommendation
City of Sheridan Letter of Recommendation

The Interstate Engineering GIS Team has worked extensively for the City of Sheridan.

County Water District of Billings Heights GIS Letter of Recommendation
County Water District of Billings Heights GIS Letter of Recommendation

The Interstate Engineering GIS Team has worked extensively for the City of Sheridan.