Bridges
| Bridges in the National Bridge Inventory | 5,253 |
|---|---|
| Good condition | 1,706 (32.5%) |
| Fair condition | 3,116 (59.3%) |
| Poor condition | 431 (8.2%) |
| Total deck area | 22,671,778 sq ft |
| Deck area in poor condition | 1,515,127 sq ft (6.7%) |
Montana ranks 14 of 51 (states plus DC) for the share of bridges in poor condition, where 1 is the highest share. Nationally, 6.6% of bridges are rated poor.
With a poor share close to the national rate, expect a steady mix of replacement, rehabilitation and preservation work. Fair-rated bridges (3,116 here) are the ones most likely to slip to poor without timely work, which is why many DOTs fund preservation and inspection contracts alongside replacements.
ASCE report card
The ASCE Montana Section gave the state an overall grade of C- in its 2024 report card. Read the full report.
| Category | Grade |
|---|---|
| Aviation | C |
| Bridges | C- |
| Dams | C- |
| Drinking Water | C |
| Energy | C- |
| Hazardous Waste | C- |
| Public Parks | C- |
| Rail | C+ |
| Roads | C- |
| Schools | D |
| Solid Waste | C |
| Stormwater | D |
| Wastewater | C- |
Low-graded categories are where owners should expect agencies and utilities to push capital programs, and where grant applications tend to cluster.
More on Montana for firm owners
- Montana DOT prequalification and procurement
- Montana PE licensure and PDH rules
- Montana civil engineer salaries
- Accredited programs in Montana
- Federal funding programs
Sources: Federal Highway Administration, National Bridge Inventory, 2026 Bridge Condition by Highway System (fhwa.dot.gov); ASCE Infrastructure Report Card state reports (infrastructurereportcard.org), produced by ASCE state sections in the year shown.
