Total Bridges
5,122
Public highway bridges in Montana
State profile · Near median Poor share
Montana bridge safety
Condition ratings, load ratings, and Poor-condition data for every public highway bridge in Montana, based on the FHWA National Bridge Inventory.
- 5,122
- Public bridges
- 28.3%
- Good condition
- 6.7%
- Poor condition
Data updated May 2026
Good Condition
28.3%
1,447 bridges rated 7-9
-21.7pp vs 50% benchmark
Poor Condition
6.7%
343 bridges whose lowest applicable component is rated 0-4
-0.3pp vs national avg 7.0%
Montana vs national bridge condition
Montana - Good condition share 28.3%
National avg
Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).
Montana - Poor-condition share 22.3%
National avg
Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.
Condition Distribution
Counties (56)
Beaverhead 217 Big Horn 136 Blaine 101 Broadwater 31 Carbon 77 Carter 39 Cascade 185 Chouteau 42 Custer 71 Daniels 32 Dawson 109 Deer Lodge 68 Fallon 35 Fergus 155 Flathead 195 Gallatin 207 Garfield 26 Glacier 68 Golden Valley 17 Granite 73 Hill 44 Jefferson 128 Judith Basin 48 Lake 111 Lewis and Clark 196 Liberty 11 Lincoln 190 Madison 84 McCone 44 Meagher 52 Mineral 152 Missoula 205 Musselshell 25 Park 124 Petroleum 26 Phillips 100 Pondera 96 Powder River 23 Powell 112 Prairie 46 Ravalli 149 Richland 96 Roosevelt 57 Rosebud 114 Sanders 116 Sheridan 66 Silver Bow 66 Stillwater 90 Sweet Grass 89 Teton 81 Toole 35 Treasure 26 Valley 103 Wheatland 26 Wibaux 24 Yellowstone 283
Montana vs nearby ranks
Adjacent states by Poor-condition share (lower share = better)
States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below Montana on the same metric.
NC
North Carolina
6.16% top marginal rate
HI
Hawaii
6.47% top marginal rate
MT
Montana
6.70% top marginal rate
NY
New York
6.90% top marginal rate
KY
Kentucky
7.06% top marginal rate
Bridges Needing Most Attention in Montana
Six lowest-condition bridges in Montana, ranked by the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.
HWY 91 N
PoorOver: BIG HOLE RIVER 041
22M N DILLON, Beaverhead, MT
Built 1940 Load: 2.7 t ADT: 155
SLEEPY HOLLOW LN
PoorOver: PRICKLY PEAR CREEK
3 M S MONTANA CITY, Jefferson, MT
Built 2010 Load: 2.7 t ADT: 100
CARBINE RD
PoorOver: PABLO CANAL 026
4M W PABLO, Lake, MT
Built 1986 Load: 2.7 t ADT: 100
BOY SCOUT RD
PoorOver: CLEARWATER RIVER 082
2M NW SEELEY LAKE, Missoula, MT
Built 1938 Load: 2.7 t ADT: 100
ASHLEY LAKE RD
PoorOver: PABLO FEEDER CANAL 045
5M NE ST IGNATIUS, Lake, MT
Built 1965 Load: 3.0 t ADT: 100
SHEEP CR RD
PoorOver: SHEEP CREEK 097
12M S CASCADE, Cascade, MT
Built 1950 Load: 3.6 t ADT: 68
All Bridges in Montana
ROAD 106
FairOver: KRUG CREEK 074
10M E GLENDIVE, Dawson, MT
Built 1951 Load: 32.7 t ADT: 100
COUNTY ROAD 317
FairOver: USBR MAIN CANAL 073
4M NE INTAKE, Dawson, MT
Built 2001 Load: 32.7 t ADT: 4
COUNTY ROAD 500
FairOver: S FORK LISK CREEK 070
4M N RICHEY, Dawson, MT
Built 1984 Load: 32.7 t ADT: 63
PINE STREET
FairOver: DRY CREEK 076
WEST GLENDIVE-PINE ST, Dawson, MT
Built 1981 Load: 32.7 t ADT: 622
S PEARSON AVENUE
FairOver: CAINS COULEE 095
GLENDIVE-S PEARSON AVE, Dawson, MT
Built 1965 Load: 32.7 t ADT: 100
S SARGENT AVENUE
FairOver: CAINS COULEE 096
GLENDIVE-S SARGENT AVE, Dawson, MT
Built 1965 Load: 32.7 t ADT: 1,019
TAYLOR AVENUE
FairOver: CAINS COULEE 097
GLENDIVE-S TAYLOR AVE, Dawson, MT
Built 1965 Load: 32.7 t ADT: 1,553
NORTH CABLE RD
FairOver: WARM SPRINGS CREEK 021
NW ANACONDA, Deer Lodge, MT
Built 1983 Load: 32.7 t ADT: 668
W RIVER RD
FairOver: CLARK FORK RIVER 014
6M N WARM SPRINGS, Deer Lodge, MT
Built 1981 Load: 32.7 t ADT: 100
S 7-MAIN ST N
FairOver: SANDSTONE CREEK
NORTH EDGE BAKER, Fallon, MT
Built 1941 Load: 32.7 t ADT: 2,196
DY TRAIL
FairOver: DOG CREEK 110
E WINIFRED, Fergus, MT
Built 1962 Load: 32.7 t ADT: 167
TOGNETTI RD
FairOver: ROSS FORK 038
5M NW MOORE, Fergus, MT
Built 1995 Load: 32.7 t ADT: 100
CRABTREE RD
FairOver: DRY WOLF CREEK 092
5M SE DENTON, Fergus, MT
Built 1962 Load: 32.7 t ADT: 100
PINE STREET
FairOver: BIG SPRING CREEK 058
LEWISTOWN-PINE ST, Fergus, MT
Built 1962 Load: 32.7 t ADT: 100
S 238-E FORK RD
FairOver: E FORK BIG SPRING CREEK
8M SE LEWISTOWN, Fergus, MT
Built 1958 Load: 32.7 t ADT: 216
SW ASH ST
FairOver: BIG SPRING CREEK
LEWISTOWN-SW ASH ST, Fergus, MT
Built 1962 Load: 32.7 t ADT: 1,386
INSIDE NORTH FORK
FairOver: QUARTZ CREEK
0.2 Mi. N. of Jct. Hwy. 2, Flathead, MT
Built 1965 Load: 32.7 t ADT: 75
INSIDE NORTH FORK
FairOver: FORD CREEK
2 Mi. N of Jct. Hwy. 2 &, Flathead, MT
Built 1965 Load: 32.7 t ADT: 50
GOING-TO-THE-SUN R
FairOver: MCDONALD CREEK
17.6 miles northeast of U, Flathead, MT
Built 1926 Load: 32.7 t ADT: 1,230
MEADOW LAKE BLVD
FairOver: RR 120
COLUMBIA FALLS, Flathead, MT
Built 1988 Load: 32.7 t ADT: 2,754
SUNNYSIDE DR
FairOver: ASHLEY CREEK 100
1M SW KALISPELL, Flathead, MT
Built 1988 Load: 32.7 t ADT: 100
SMITH LAKE RD
FairOver: ASHLEY CREEK 007
10M W KALISPELL, Flathead, MT
Built 1988 Load: 32.7 t ADT: 100
CHURCH DR
FairOver: STILLWATER RIVER 089
5M NW KALISPELL, Flathead, MT
Built 1978 Load: 32.7 t ADT: 100
GOOD CREEK RD
FairOver: STILLWATER RIVER 176
1M S OLNEY, Flathead, MT
Built 1981 Load: 32.7 t ADT: 182
COUNTY ROAD 882
FairOver: GOOD CREEK 079
7M SW OLNEY, Flathead, MT
Built 1988 Load: 32.7 t ADT: 100
STAR MEADOW RD
FairOver: LOGAN CREEK 175
19M SW OLNEY, Flathead, MT
Built 1981 Load: 32.7 t ADT: 198
MARTIN CAMP RD
FairOver: STILLWATER RIVER 081
5M SE OLNEY, Flathead, MT
Built 1991 Load: 32.7 t ADT: 100
W EVERGREEN DR
FairOver: WHITEFISH RIVER 165
KALISPELL-W EVERGREEN DR, Flathead, MT
Built 1983 Load: 32.7 t ADT: 3,593
IRR - US 2
FairOver: MOCCASIN CREEK
6M E WEST GLACIER, Flathead, MT
Built 1972 Load: 32.7 t ADT: 2,372
E RESERVE DR
FairOver: SPRING CREEK
2M NE KALISPELL, Flathead, MT
Built 1988 Load: 32.7 t ADT: 4,736
WHITEFISH STAGE RD
FairOver: STILLWATER RIVER
KALISPELL, Flathead, MT
Built 1975 Load: 32.7 t ADT: 7,113
I 90
FairOver: DARLINGTON DITCH
1.9M E THREE FORKS, Gallatin, MT
Built 1963 Load: 32.7 t ADT: 9,524
I 90
FairOver: DARLINGTON DITCH
1.9M E THREE FORKS, Gallatin, MT
Built 1963 Load: 32.7 t ADT: 9,524
I 90
FairOver: RR
BOZEMAN, Gallatin, MT
Built 1971 Load: 32.7 t ADT: 10,307
SIXTEEN MILE ROAD
FairOver: SIXTEEN MILE CREEK 070
MAUDLOW, Gallatin, MT
Built 1974 Load: 32.7 t ADT: 100
W CAMERON BR RD
FairOver: GALLATIN RIVER 048
1M SW BELGRADE, Gallatin, MT
Built 2007 Load: 32.7 t ADT: 100
COTTONWOOD RD
FairOver: S COTTONWOOD CREEK 123
3.5M SE GALLATIN GATEWAY, Gallatin, MT
Built 2014 Load: 32.7 t ADT: 100
COTTONWOOD ROAD
FairOver: S COTTONWOOD CREEK 124
3.6M SE GALLATIN GATEWAY, Gallatin, MT
Built 2014 Load: 32.7 t ADT: 100
CHAPMAN RD
FairOver: HYALITE CREEK 049
5M SW BOZEMAN, Gallatin, MT
Built 2014 Load: 32.7 t ADT: 100
JOHNSON ROAD
FairOver: HYALITE CREEK 125
6M SW BOZEMAN, Gallatin, MT
Built 2014 Load: 32.7 t ADT: 100
E GRIFFIN DR
FairOver: E GALLATIN RIVER 090
1M N BOZEMAN, Gallatin, MT
Built 1989 Load: 32.7 t ADT: 7,331
E TAMARACK STREET
FairOver: BOZEMAN CREEK 115
BOZEMAN-E TAMARACK ST, Gallatin, MT
Built 1982 Load: 32.7 t ADT: 100
US 287
FairOver: MADISON RIVER
3M N WEST YELLOWSTONE, Gallatin, MT
Built 1968 Load: 32.7 t ADT: 3,903
US 191 FH 42
FairOver: GRAYLING CREEK
14M N WEST YELLOWSTONE, Gallatin, MT
Built 1962 Load: 32.7 t ADT: 2,481
US 191 FH 42
FairOver: GRAYLING CREEK
15M N WEST YELLOWSTONE, Gallatin, MT
Built 1962 Load: 32.7 t ADT: 2,481
US 191 FH 42
FairOver: GALLATIN RIVER
14M S GALLATIN GATEWAY, Gallatin, MT
Built 1950 Load: 32.7 t ADT: 8,666
TRIDENT RD
FairOver: GALLATIN RIVER
1M SW TRIDENT, Gallatin, MT
Built 1975 Load: 32.7 t ADT: 487
DRY CREEK RD
FairOver: EAST GALLATIN RIVER
3M N BELGRADE, Gallatin, MT
Built 1957 Load: 32.7 t ADT: 2,093
S 200
FairOver: SAGEHEN CREEK
3M E MOSBY, Garfield, MT
Built 1973 Load: 32.7 t ADT: 532
S 200
FairOver: BIG DRY CREEK
13M E JORDAN, Garfield, MT
Built 2013 Load: 32.7 t ADT: 469
Showing 2,451-2,500 of 5,122 bridges
Related
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges.
Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the FHWA National Bridge Inventory (NBI). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.
Understanding Bridge Conditions
How FHWA rates bridge condition on a 0-9 scale.
Check Your Daily Bridges
How to look up bridge condition data for bridges on your route.
Read our methodology — how this data is sourced, computed, and verified.
Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.