Total bridges
53
Public highway bridges in Meagher County
County profile · official public datasets
53 public highway bridges tracked in the FHWA National Bridge Inventory: 20.8% rated Good, 69.8% Fair, 9.4% Poor.
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Meagher County posts a higher-than-median Poor-condition share among rated counties in the state across rated county bridge inventory.
Poor is an FHWA condition category from the lowest applicable component rating (4 or below), not a live crossing-safety or closure decision. Rankings cover counties with at least five public highway bridges.
According to the Federal Highway Administration's 2024 National Bridge Inventory, Meagher County ranks #43 of 56 Montana counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 9.4%). Meagher County, Montana contains 53 public highway bridges. Roughly 20.8% are rated “Good,” 69.8% “Fair,” and 9.4% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.
Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.
Source: FHWA National Bridge Inventory. See methodology for full definitions.
Total bridges
53
Public highway bridges in Meagher County
Good condition
20.8%
11 of 53 rated 7-9
Fair condition
69.8%
37 of 53 rated 5-6
Poor condition
9.4%
5 of 53 rated 4 or below
In-state Poor-share rank
#43 of 56
Among Montana counties with 5+ bridges, lower share ranks better
Share of 53 NBI-tracked bridges by lowest applicable component rating.
That is 4.9% of the county's reported daily bridge traffic on 9.4% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 80 crossings a day against 79 for a Good-condition one. A Poor rating is a condition category, not a closure or a live safety judgement; it means the lowest applicable component rating is 4 or below.
Computed over the 53 of 53 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
25 of the 53 bridges with a recorded construction year were built in 1974 or earlier. Age alone is not a defect: a well-maintained older bridge can rate Good, and 20.8% of this county's inventory does. Even so, this older cohort is the population from which future Poor ratings are drawn, which is why the age profile below matters alongside the condition split above.
Cutoff derives from the 2024 release year minus a 50-year design life. Source: FHWA National Bridge Inventory, 2024 release.
CANYON RD over SMITH RIVER 002, built 1957, carries 100 vehicles a day, the most of any Poor-rated structure here. The county's Poor-condition exposure is concentrated rather than evenly spread, so the 5-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 400 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
53 bridges with a recorded construction year, grouped by decade
1930–1939
2 bridges
1940–1949
2 bridges
1950–1959
12 bridges
1960–1969
3 bridges
1970–1979
10 bridges
1980–1989
5 bridges
1990–1999
6 bridges
2000–2009
1 bridges
2010–2019
11 bridges
2020–2029
1 bridges
What this shows Construction peaked in the 1950s, when 12 of the county's bridges still in the inventory were built, which is 22.6% of those with a recorded year. That cohort is now 65 to 74 years old in the 2024 inventory. Its average build year (1980) matches the Montana average (1977).
The 5 Montana counties nearest Meagher County in number of bridges, with their condition splits. Its 9.4% Poor share is the 5th-lowest of these 6. Its average build year of 1980 against a peer-group mean of 1975 is 5 years newer.
Showing the 5 closest of 55 Montana counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Roosevelt County | 57 | 28.1% | 64.9% | 7% | 1984 |
| Meagher County (this page) | 53 | 20.8% | 69.8% | 9.4% | 1980 |
| Judith Basin County | 48 | 56.3% | 31.3% | 12.5% | 1979 |
| Hill County | 46 | 58.7% | 34.8% | 6.5% | 1983 |
| Prairie County | 46 | 13% | 80.4% | 6.5% | 1962 |
| McCone County | 44 | 11.4% | 79.5% | 9.1% | 1967 |
Each share is of that county's own total tracked bridges; peers are the counties with 5 or more bridges whose inventory size is closest to Meagher County's. Source: FHWA National Bridge Inventory, 2024 release.
Two NBI-derived peer sets for Meagher County, both outside Montana so the neighborhoods are not the same-state size table above.
Nearest county inventories outside MT (53 bridges here).
Nearest mean year-built outside MT (1980 here).
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
Over: SIXTEENMILE CREEK 044
18M SW RINGLING, Meagher, MT
Over: W FK COTTONWOOD CREEK
4.5 MI SW CNTY-COTNWD JCT, Meagher, MT
Over: MOOSE CREEK
2.3 MI.NE OF JCT 119/204, Meagher, MT
Over: MOOSE CREEK
3.5 MI NE OF 119/204 JCT, Meagher, MT
Over: MOOSE CREEK
4 MI NE OF 119/204 RD JCT, Meagher, MT
Over: MOOSE CREEK
1.3 MI NE RD 119/204 JCT, Meagher, MT
Over: SHEEP CREEK
JUMPING CREEK CAMPGROUND, Meagher, MT
Over: SHEEP CREEK
0.1 MI N US89/FDR6413 JCT, Meagher, MT
Over: MOOSE CREEK
6 MI NE OF RD 119/204 JCT, Meagher, MT
Over: COTTONWOOD CREEK
5M SW MARTINSDALE, Meagher, MT
Over: SHEEP CREEK
3.8 MI WEST US89/119 JCT, Meagher, MT
Over: SHEEP CREEK
17M SW NEIHART, Meagher, MT
Over: SIXTEENMILE CREEK 039
3M E RINGLING, Meagher, MT
Over: FOUR MILE CREEK
4.5 MI SE US12/FDR211 JCT, Meagher, MT
Over: FOUR MILE CREEK
6M NE WHITE SULPHUR SPR, Meagher, MT
Over: NORTH FORK SMITH RIVER
2M NE WHITE SULPHUR SPR, Meagher, MT
Over: NORTH FORK SMITH RIVER
WHITE SULPHUR SPRINGS, Meagher, MT
Over: SMITH RIVER
2M E FORT LOGAN, Meagher, MT
Over: FOUR MILE CREEK
5.8 MI SE US12/FDR211 JCT, Meagher, MT
Over: SMITH RIVER 001
4M NW WHITE SULPHUR SPR, Meagher, MT
Over: N FORK MUSSELSHELL R
11M NW TWO DOT, Meagher, MT
Over: S FK MUSSLESHELL OVF 040
MARTINSDALE, Meagher, MT
Over: MARTINSDALE RESERVOIR CA
SE MARTINSDALE, Meagher, MT
Over: ROCK CREEK 005
35M NW WHITE SULPHUR SPR, Meagher, MT
Over: SMITH RIVER 014
CAMP BAKER, Meagher, MT
Over: SHEEP CREEK 003
10M N FORT LOGAN, Meagher, MT
Over: S FORK SMITH RIVER 028
7M SW WHITE SULPHUR SPR, Meagher, MT
Over: SAWMILL CREEK
15M SW MARTINSDALE, Meagher, MT
Over: S FORK MUSSELSHELL RIVER
MARTINSDALE, Meagher, MT
Over: MOOSE CREEK
4.4 MI WEST US89/119 JCT, Meagher, MT
Over: FLAGSTAFF CREEK
2M E CHECKERBOARD, Meagher, MT
Over: SHEEP CREEK
0.1 MI SE US89/RD.836 JCT, Meagher, MT
Over: SOUTH FORK SMITH RIVER
8M S WHITE SULPHUR SPR, Meagher, MT
Over: COOPER CREEK
5M SE CHECKERBOARD, Meagher, MT
Over: COTTONWOOD CREEK 025
9M S MARTINSDALE, Meagher, MT
Over: MARTINSDALE SUPPLY CANAL
MARTINSDALE, Meagher, MT
Over: S FORK SMITH RIVER 021
3M SW WHITE SULPHUR SPR, Meagher, MT
Read our methodology - how this data is sourced, computed, and verified.
Every figure on PlainBridges 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. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.