Bridge Condition Trends in Montana

Between 2015 and 2025, bridge conditions in Montana have worsened. The share of bridges rated poor went from 5.8% to 7.4% — a change of 1.6 percentage points.

Condition Summary

YearTotalGoodFairPoorPoor %
20155,2431,9892,9513035.8%
20205,2711,6123,2823777.2%
20255,2351,6823,1653887.4%

Most Improved Counties in Montana

CountyPoor % (2015)Poor % (2025)Change
Powder River9.5%0.0%-9.5 pp
Stillwater8.0%1.1%-6.9 pp
Golden Valley5.9%0.0%-5.9 pp
Mineral14.8%11.1%-3.6 pp
Toole3.0%0.0%-3.0 pp
Prairie13.3%10.9%-2.5 pp
Flathead6.5%4.4%-2.1 pp
Silver Bow4.8%2.9%-2.0 pp
Deer Lodge6.3%4.5%-1.9 pp
Petroleum16.7%15.4%-1.3 pp

Counties Where Conditions Worsened

CountyPoor % (2015)Poor % (2025)Change
Phillips9.2%21.8%+12.6 pp
Daniels0.0%12.1%+12.1 pp
Meagher2.2%13.2%+11.0 pp
Wheatland3.8%14.8%+11.0 pp
Blaine0.0%9.8%+9.8 pp
McCone0.0%9.3%+9.3 pp
Garfield0.0%7.7%+7.7 pp
Lincoln8.0%15.2%+7.1 pp
Park3.6%10.3%+6.7 pp
Broadwater4.2%10.8%+6.6 pp

View all Montana bridges · National trends