Total bridges
366
Public highway bridges in Osage County
County profile · official public datasets
Osage County, OK
366 public highway bridges tracked in the FHWA National Bridge Inventory: 38.3% rated Good, 41.8% Fair, 19.9% Poor.
- 366
- Public bridges
- 38.3%
- Good condition
- 19.9%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Osage County pairs a higher-than-median Poor-condition share among rated counties in the state with an older average build year than the state inventory.
- 74th
- of 77 on Poor share
- 19.9%
- Poor-condition share
- 366
- public highway bridges
- 1966
- 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.
Osage County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Osage County ranks #74 of 77 Oklahoma counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 19.9%). Osage County, Oklahoma contains 366 public highway bridges. Roughly 38.3% are rated “Good,” 41.8% “Fair,” and 19.9% “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
38.3%
140 of 366 rated 7-9
Fair condition
41.8%
153 of 366 rated 5-6
Poor condition
19.9%
73 of 366 rated 4 or below
In-state Poor-share rank
#74 of 77
Among Oklahoma counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 366 NBI-tracked bridges by lowest applicable component rating.
Good 38.3% (140)
Fair 41.8% (153)
Poor 19.9% (73)
Osage County's Poor-condition bridges carry 9,732 vehicle crossings a day
That is 3.1% of the county's reported daily bridge traffic on 19.9% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 133 crossings a day against 1,201 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 366 of 366 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
60.4% of Osage County's bridges have passed the 50-year mark
221 of the 366 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 38.3% 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 11.8% of the county's Poor-condition bridge traffic
N3744 (OLD S.H. 99 over SOLDIER CREEK, built 1940, carries 1,150 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 73-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 9,732 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When Osage County's bridges were built
366 bridges with a recorded construction year, grouped by decade
- 1910s 4
1910–1919
4 bridges
- 1920s 14
1920–1929
14 bridges
- 1930s
1930–1939
84 bridges
- 1940s
1940–1949
48 bridges
- 1950s 21
1950–1959
21 bridges
- 1960s 33
1960–1969
33 bridges
- 1970s 30
1970–1979
30 bridges
- 1980s 32
1980–1989
32 bridges
- 1990s 23
1990–1999
23 bridges
- 2000s
2000–2009
36 bridges
- 2010s 32
2010–2019
32 bridges
- 2020s 9
2020–2029
9 bridges
What this shows Construction peaked in the 1930s, when 84 of the county's bridges still in the inventory were built, which is 23% of those with a recorded year. That cohort is now 85 to 94 years old in the 2024 inventory. Its average build year is 1966, 11 years older than the Oklahoma average of 1977.
How Osage County compares with Oklahoma's closest counties by inventory size
The 5 Oklahoma counties nearest Osage County in number of bridges, with their condition splits. Its 19.9% Poor share is the 6th-lowest of these 6. Its average build year of 1966 against a peer-group mean of 1983 is 17 years older.
Showing the 5 closest of 76 Oklahoma counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Alfalfa County | 387 | 27.4% | 66.1% | 6.5% | 1988 |
| Custer County | 384 | 73.2% | 25.5% | 1.3% | 1982 |
| Payne County | 384 | 24% | 65.6% | 10.4% | 1982 |
| Stephens County | 382 | 29.1% | 68.1% | 2.9% | 1985 |
| Osage County (this page) | 366 | 38.3% | 41.8% | 19.9% | 1966 |
| Washita County | 361 | 70.1% | 26.3% | 3.6% | 1976 |
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 Osage 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 Osage County, both outside Oklahoma so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside OK (366 bridges here).
- Lorain County, OH · 366 bridges
- Allen County, OH · 367 bridges
- Clackamas County, OR · 367 bridges
- Centre County, PA · 367 bridges
Similar average build year
Nearest mean year-built outside OK (1966 here).
- Butler County, KS · avg 1966 · 591 bridges
- Grafton County, NH · avg 1966 · 544 bridges
- Queens County, NY · avg 1966 · 514 bridges
- Lehigh County, PA · avg 1966 · 381 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
Good-condition bridges (140)
IRR N3880
GoodOver: SAND CREEK
1.4S 4.3W OF US60/SH123, Osage, OK
Built 2012 Load: 43.2 t ADT: 50
IRR FAS 5749
GoodOver: DELAWARE CREEK
4.8 MI E SH 97, Osage, OK
Built 1982 Load: 43.4 t ADT: 425
IRR FAS 5747
GoodOver: MCCORMICK CREEK
4.4 MI N SH 11, Osage, OK
Built 1989 Load: 43.4 t ADT: 105
FAS 5745
GoodOver: W BRANCH SALT CREEK
5.5 MI E KAY C/L, Osage, OK
Built 1994 Load: 43.4 t ADT: 100
D0010
GoodOver: BUCK CREEK
5.5W SH99; .6S KANSAS SL, Osage, OK
Built 2001 Load: 43.4 t ADT: 75
N3705
GoodOver: HOMINY CREEK
4N OF HOMINY, Osage, OK
Built 1991 Load: 43.9 t ADT: 100
S.H. 99
GoodOver: ROCK CREEK
6 N OF U.S. 60, Osage, OK
Built 2015 Load: 44.5 t ADT: 550
S.H. 99
GoodOver: CANEY RIVER
7.5 N OF S.H. 10 JCT, Osage, OK
Built 2021 Load: 44.6 t ADT: 550
E0310
GoodOver: CLEAR CREEK
5W SH18; 4N SH20, Osage, OK
Built 2004 Load: 44.7 t ADT: 1,635
N3849
GoodOver: SAND CREEK
3.6 MI N OKESA, Osage, OK
Built 2010 Load: 45.4 t ADT: 100
N3768 (5752C)
GoodOver: CREEK
5.2W HWY99 .6S OF ELGIN, Osage, OK
Built 2023 Load: 45.4 t ADT: 100
D3421
GoodOver: LITTLE DRUM CREEK
17S & W OF PONCA CITY, Osage, OK
Built 2021 Load: 46.3 t ADT: 380
U.S. 60
GoodOver: DRY HOLLOW CREEK
5.1E OF JCT. S.H. 99, Osage, OK
Built 2015 Load: 46.6 t ADT: 2,500
S.H. 18
GoodOver: SALT CREEK
2 N OF PAWNEE C/L, Osage, OK
Built 2021 Load: 47.0 t ADT: 1,800
U.S. 60
GoodOver: CREEK
5.3 MI. E. JCT. SH18, Osage, OK
Built 1964 Load: 47.6 t ADT: 2,000
D0440
GoodOver: CREEK
1S 9W OF HOMINY, Osage, OK
Built 2005 Load: 48.5 t ADT: 75
S.H. 99
GoodOver: POND CREEK
5.1 N OF S.H. 10 JCT, Osage, OK
Built 2021 Load: 49.3 t ADT: 550
S.H. 99
GoodOver: PENN CREEK
.3N OF JCT SH20, Osage, OK
Built 2023 Load: 49.3 t ADT: 4,300
S.H. 99
GoodOver: HOMINY CREEK
4.2MI.N.JCT.SH-20, Osage, OK
Built 2002 Load: 50.0 t ADT: 2,400
E0280
GoodOver: MARCHESONI CREEK
16S & W OF PONCA CITY, Osage, OK
Built 2019 Load: 52.6 t ADT: 380
D0451
GoodOver: BUCK CREEK
8 MILES SE OF HOMINY, Osage, OK
Built 1978 Load: 54.2 t ADT: 24
N3888 (N 66TH AVE)
GoodOver: DELAWARE CREEK TRIB.
3NW of DN TN AIRPRK, Osage, OK
Built 2018 Load: 54.6 t ADT: 400
E0450
GoodOver: QUAPAW CREEK
3.5SW OF SKIATOOK, Osage, OK
Built 2014 Load: 57.0 t ADT: 100
IRR FAS 5757
GoodOver: CLEM CREEK
4.5 MI W OF AVANT, Osage, OK
Built 1985 Load: 59.5 t ADT: 80
S.H. 99
GoodOver: BIRCH CREEK
2.7 N JCT S.H. 10, Osage, OK
Built 2021 Load: 59.9 t ADT: 550
D0243
GoodOver: CREEK
1SW OF JCT HWY99 & HWY60, Osage, OK
Built 1940 Load: 67.5 t ADT: 1,280
U.S. 60
GoodOver: CREEK
17.2 MI. E. JCT. SH18, Osage, OK
Built 1958 Load: 68.4 t ADT: 2,100
D0360
GoodOver: TUCKER CREEK
0.3 MI. S.W. OF AVANT, Osage, OK
Built 1996 Load: 68.4 t ADT: 200
IRR N3925 (OSAGE)
GoodOver: FLAT ROCK CREEK
.5N OF 36TH STREET N., Osage, OK
Built 2013 Load: 71.3 t ADT: 960
5798C
GoodOver: WALNUT CREEK
2 MI. N.W. OF PRUE, Osage, OK
Built 1962 Load: 77.7 t ADT: 864
N3550
GoodOver: GRAYHORSE CREEK TRIB.
.25N OF HWY 20, Osage, OK
Built 2009 Load: 86.5 t ADT: 250
U.S. 60
GoodOver: CREEK
10.2 MI E KAY C/L, Osage, OK
Built 1972 Load: 88.2 t ADT: 2,600
S.H. 99
GoodOver: SCANLON CREEK
0.6 MI. N.PAWNEE CL, Osage, OK
Built 1962 Load: 90.7 t ADT: 4,000
D0330
GoodOver: BIRCH CREEK
4 W OF BARNSDALL, Osage, OK
Built 2013 Load: 98.9 t ADT: 215
S.H. 99
GoodOver: ELM CREEK
3.0 MI. N. JCT. US60, Osage, OK
Built 1933 Load: 99.9 t ADT: 500
FAS 5757
GoodOver: CREEK
1.0 MI S OF BARNSDALL, Osage, OK
Built 1960 Load: 99.9 t ADT: 288
U.S. 60
GoodOver: LITTLE CHARLEY CREEK
7.2 MI. E. KAY CL, Osage, OK
Built 1973 Load: 99.9 t ADT: 3,000
FAS5754
GoodOver: W GRAY HORSE CREEK
4E OF 18 @ GRAYHORSE RES, Osage, OK
Built 2000 Load: 99.9 t ADT: 268
S.H. 11
GoodOver: RED EAGLE BRANCH CREEK
9.2 E JCT 99, Osage, OK
Built 2012 Load: 99.9 t ADT: 1,800
E0330
GoodOver: DOG THRESHER CREEK TRIB.
3SE OF BARNSDALL, Osage, OK
Built 2014 Load: 99.9 t ADT: 100
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.