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Distribution Integrity Management Program (DIMP)

Montana-Dakota Utilities Co. routinely evaluates and prioritizes risks to validate the integrity of the distribution gas pipelines so they continue to be operated in a safe and responsible manner without interruptions.

In order to keep up with state and federal laws, MDU has identified sections of pipe for replacement based on physical and operation & maintenance components.

These type of replacement projects are not new, since 2020 MDU has successfully replaced sections of main and services in the following cities.

Main (LF.) Services (EA)
2020 North Dakota    
Dickinson 49074 517
South Dakota    
Trojan and Lead 5047 10
Wyoming    
Worland 36646 26
Montana    
Glendive 38531 553
2021 North Dakota    
Dickinson 60091 776
South Dakota    
Trojan and Lead 35722 18
Wyoming    
Worland 45443 27
Montana    
Glendive 49300 481
2022 North Dakota    
Dickinson 68914 1040
South Dakota    
Lead & Central City 9483 34
Wyoming    
Sheridan 8375 118
Montana    
Glendive 14068 44
Miles City 33081 555
2023 North Dakota    
Dickinson 58700 1061
South Dakota    
Lead & Central City 2500 20
Rapid City     11000 193
Wyoming    
Sheridan 14500 273
Montana    
Miles City 38500 552