Total bridges
187
Public highway bridges in Park County
County profile · official public datasets
Park County, WY
187 public highway bridges tracked in the FHWA National Bridge Inventory: 37.4% rated Good, 58.3% Fair, 4.3% Poor.
- 187
- Public bridges
- 37.4%
- Good condition
- 4.3%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Park County posts a better-than-median Poor-condition share among rated counties in the state across mid-size county bridge inventory.
- Top 30%
- lowest Poor share in state
- 4.3%
- Poor-condition share
- 187
- public highway bridges
- 1979
- avg year built
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.
Park County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Park County ranks #7 of 23 Wyoming counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 4.3%). Park County, Wyoming contains 187 public highway bridges. Roughly 37.4% are rated “Good,” 58.3% “Fair,” and 4.3% “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.
Good condition
37.4%
70 of 187 rated 7-9
Fair condition
58.3%
109 of 187 rated 5-6
Poor condition
4.3%
8 of 187 rated 4 or below
In-state Poor-share rank
#7 of 23
Among Wyoming counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 187 NBI-tracked bridges by lowest applicable component rating.
Good 37.4% (70)
Fair 58.3% (109)
Poor 4.3% (8)
Park County's Poor-condition bridges carry 5,934 vehicle crossings a day
That is 2.2% of the county's reported daily bridge traffic on 4.3% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 742 crossings a day against 1,133 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 187 of 187 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
50.3% of Park County's bridges have passed the 50-year mark
94 of the 187 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 37.4% 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.
One structure carries 33.4% of the county's Poor-condition bridge traffic
NORTHEAST ENTRANCE over YELLOWSTONE RIVER, built 1961, carries 1,982 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 8-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 5,934 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When Park County's bridges were built
187 bridges with a recorded construction year, grouped by decade
- 1920s 2
1920–1929
2 bridges
- 1930s 9
1930–1939
9 bridges
- 1940s 3
1940–1949
3 bridges
- 1950s 9
1950–1959
9 bridges
- 1960s
1960–1969
42 bridges
- 1970s
1970–1979
36 bridges
- 1980s
1980–1989
23 bridges
- 1990s
1990–1999
23 bridges
- 2000s
2000–2009
19 bridges
- 2010s
2010–2019
17 bridges
- 2020s 4
2020–2029
4 bridges
What this shows Construction peaked in the 1960s, when 42 of the county's bridges still in the inventory were built, which is 22.5% of those with a recorded year. That cohort is now 55 to 64 years old in the 2024 inventory. Its average build year (1979) matches the Wyoming average (1976).
How Park County compares with Wyoming's closest counties by inventory size
The 5 Wyoming counties nearest Park County in number of bridges, with their condition splits. Its 4.3% Poor share is the 3rd-lowest of these 6. Its average build year of 1979 against a peer-group mean of 1975 is in line with the group.
Showing the 5 closest of 22 Wyoming counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Johnson County | 204 | 26.5% | 70.6% | 2.9% | 1970 |
| Sweetwater County | 191 | 28.8% | 62.8% | 8.4% | 1976 |
| Park County (this page) | 187 | 37.4% | 58.3% | 4.3% | 1979 |
| Fremont County | 177 | 47.5% | 46.3% | 6.2% | 1981 |
| Crook County | 176 | 30.7% | 67.6% | 1.7% | 1974 |
| Sheridan County | 170 | 23.5% | 71.8% | 4.7% | 1975 |
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 Park County's. Source: FHWA National Bridge Inventory, 2024 release.
Nationwide counties with similar inventory size or average build year
Two NBI-derived peer sets for Park County, both outside Wyoming so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside WY (187 bridges here).
- Lonoke County, AR · 187 bridges
- Huntington County, IN · 187 bridges
- Grundy County, MO · 187 bridges
- Henry County, TN · 187 bridges
Similar average build year
Nearest mean year-built outside WY (1979 here).
- Pima County, AZ · avg 1979 · 1,150 bridges
- Jefferson County, KY · avg 1979 · 662 bridges
- Spartanburg County, SC · avg 1979 · 638 bridges
- McPherson County, KS · avg 1979 · 586 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
Fair-condition bridges (109)
Pa Cnty Rd L7B
FairOver: Bitter Creek
3 Miles N.E. Of Powell, Park, WY
Built 1966 Load: 32.7 t ADT: 128
Pa Cnty Rd R1A
FairOver: Shoshone River
4 Mi. S.E. Of Garland, Park, WY
Built 1965 Load: 32.7 t ADT: 117
Pa Cnty Rd R2N
FairOver: Deaver Canal
3 Miles W. Of Deaver, Park, WY
Built 1960 Load: 32.7 t ADT: 128
Pa Cnty Rd 1XG
FairOver: Frannie Canal
1 Mile West Of Frannie, Park, WY
Built 1960 Load: 32.7 t ADT: 33
Pa Cnty Rd 5WT
FairOver: Greybull River
12 Miles Sw Of Meteetse, Park, WY
Built 1969 Load: 32.7 t ADT: 74
Pa Cnty Rd 3NG
FairOver: Greybull River
9 Mi. Ne Of Meetetse, Park, WY
Built 1964 Load: 32.7 t ADT: 128
Pa Cnty Rd 3LE
FairOver: Cottonwood Creek
23 Mi. S.E. Of Cody, Park, WY
Built 1967 Load: 32.7 t ADT: 106
Pa Cnty Rd L10C
FairOver: Frannie Canal
2.5 Mi. N.E. Of Ralston, Park, WY
Built 1975 Load: 32.7 t ADT: 128
Pa Cnty Rd L7B
FairOver: Frannie Canal
3.5 Miles N.W. Of Powell, Park, WY
Built 1968 Load: 32.7 t ADT: 128
Pa Cnty Rd L6
FairOver: Frannie Canal
4 Miles N.W. Of Powell, Park, WY
Built 1972 Load: 32.7 t ADT: 128
Pa Cnty Rd L5
FairOver: Frannie Canal
5 Miles N.N.W. Of Powell, Park, WY
Built 1972 Load: 32.7 t ADT: 128
US 14
FairOver: Sulphur Creek
Cody-Yellowstone Road, Park, WY
Built 1955 Load: 32.7 t ADT: 18,720
Pa Cnty Rd R11H
FairOver: Deer Creek
3 Miles W. Of Willwood, Park, WY
Built 1970 Load: 32.7 t ADT: 128
WYO 120
FairOver: Heart Mountain Canal
T53W R102N S24, Park, WY
Built 1989 Load: 32.7 t ADT: 2,047
WYO 120
FairOver: Cottonwood Creek
Cody-Montana State Line, Park, WY
Built 1989 Load: 32.7 t ADT: 1,324
WYO 120
FairOver: Dry Creek
Meeteetse-Cody, Park, WY
Built 1960 Load: 32.7 t ADT: 1,925
Pa Cnty Rd 6QS
FairOver: Cody Canal
9 Miles S.W. Of Cody, Park, WY
Built 1995 Load: 32.7 t ADT: 90
Pa Cnty Rd XUX
FairOver: Squaw Creek
50 Mi Nw Of Cody, Park, WY
Built 2000 Load: 32.7 t ADT: 42
US 14A
FairOver: Alkali Creek
Cody - Powell, Park, WY
Built 2005 Load: 32.7 t ADT: 5,827
US 14A
FairOver: Buck Creek
Cody - Powell, Park, WY
Built 2010 Load: 32.7 t ADT: 5,827
BEARTOOTH HIGHWAY
FairOver: CLARKS FORK YELLOWSTONE
13.4 MI. EAST OF NE ENTRA, Park, WY
Built 1965 Load: 33.6 t ADT: 1,775
BEARTOOTH HIGHWAY
FairOver: CRAZY CREEK
15.1 MI. EAST OF NE ENTRA, Park, WY
Built 1965 Load: 33.6 t ADT: 1,775
WYO 296
FairOver: Dead Indian Creek
Clarks Fork Road, Park, WY
Built 1989 Load: 33.6 t ADT: 393
US 14
FairOver: Shoshone River
Yellowstone Park - Cody, Park, WY
Built 1960 Load: 34.3 t ADT: 2,406
US 14
FairOver: Sage Creek
Cody - Jct WYO 310, Park, WY
Built 1975 Load: 34.5 t ADT: 1,369
WYO 120
FairOver: Clarks Fork River
Cody - Montana Line, Park, WY
Built 1959 Load: 34.5 t ADT: 1,573
WYO 120
FairOver: Clarks Fork River
Cody - Montana Line, Park, WY
Built 1959 Load: 34.5 t ADT: 1,573
Pa Cnty Rd 6QS
FairOver: S Fork Shoshone River
12 Mi. S.W. Of Cody, Park, WY
Built 1979 Load: 34.5 t ADT: 90
Pa Cnty Rd 4EU
FairOver: Greybull River
4 Miles S.W. Of Meeteetse, Park, WY
Built 1988 Load: 34.5 t ADT: 67
WYO 120
FairOver: Shoshone River
Cody-Montana State Line, Park, WY
Built 1991 Load: 34.5 t ADT: 3,654
US 14
FairOver: N Fork Shoshone River
Yellowstone Park - Cody, Park, WY
Built 1982 Load: 35.4 t ADT: 3,071
WYO 120
FairOver: Cottonwood Creek
Cody-Montana State Line, Park, WY
Built 1989 Load: 36.3 t ADT: 1,324
NORTHEAST ENTRANCE
FairOver: DRY CREEK
3.8 miles west of NE Entr, Park, WY
Built 1936 Load: 38.1 t ADT: 1,982
NORTHEAST ENTRANCE
FairOver: DRY CREEK
4.6 MI. WEST OF NE ENTRAN, Park, WY
Built 1936 Load: 38.1 t ADT: 1,982
WYO 296
FairOver: Crandall Creek
Jct US 212 - Jct WYO 120, Park, WY
Built 1972 Load: 38.1 t ADT: 832
US 14A
FairOver: BNSF Railway
Garland-Byron Road, Park, WY
Built 1985 Load: 38.1 t ADT: 1,887
Pa Cnty Rd R8
FairOver: Garland Canal
Truck Bypass/Garland Cana, Park, WY
Built 2009 Load: 39.0 t ADT: 2,159
US 14
FairOver: Beck Lake
Cody, Park, WY
Built 1970 Load: 39.2 t ADT: 7,497
Pa Cnty Rd L14B
FairOver: Willwood Canal
2 Miles S.W. Of Ralston, Park, WY
Built 1988 Load: 40.8 t ADT: 206
US 14
FairOver: Unnamed Draw
Yellowstone Park-Cody, Park, WY
Built 1996 Load: 40.8 t ADT: 2,487
US 14
FairOver: Gunbarrel Creek
36 Mi. West Of Cody, Park, WY
Built 2000 Load: 40.8 t ADT: 2,487
US 14
FairOver: Clearwater Creek
Yellowstone Park - Cody, Park, WY
Built 1998 Load: 40.8 t ADT: 3,071
WYO 291
FairOver: Cody Canal W Sulphur Crk
South Fork Road, Park, WY
Built 1995 Load: 40.8 t ADT: 3,334
Pa Cnty Rd L10D
FairOver: Heart Mountain Canal
7.5 Mi. W. Of Ralston, Park, WY
Built 1977 Load: 41.7 t ADT: 233
Pa Cnty Rd 6KV
FairOver: N Fork Shoshone River
15 Miles West Of Cody, Park, WY
Built 1990 Load: 43.5 t ADT: 266
WYO 120
FairOver: Big Sand Coulee
Cody - Montana St. Line, Park, WY
Built 2002 Load: 45.4 t ADT: 2,016
US 14A
FairOver: Garland Canal
Cody - Powell, Park, WY
Built 2005 Load: 45.9 t ADT: 5,827
US 14
FairOver: Newton Creek
34 Mi. West Of Cody, Park, WY
Built 2000 Load: 46.1 t ADT: 2,487
Pa Cnty Rd 8VE
FairOver: Clarks Fork River
5 Mi Ne Of Clark, Park, WY
Built 2006 Load: 46.3 t ADT: 108
US 14
FairOver: N Fork Shoshone River
Yellowstone Park-Cody, Park, WY
Built 1996 Load: 46.4 t ADT: 2,487
Read our methodology - how this data is sourced, computed, and verified.
Related
Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges
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.