Total bridges
271
Public highway bridges in Ottawa County
County profile · official public datasets
Ottawa County, OK
271 public highway bridges tracked in the FHWA National Bridge Inventory: 39.1% rated Good, 39.1% Fair, 21.8% Poor.
- 271
- Public bridges
- 39.1%
- Good condition
- 21.8%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Ottawa 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.
- 77th
- of 77 on Poor share
- 21.8%
- Poor-condition share
- 271
- public highway bridges
- 1971
- 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.
Ottawa County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Ottawa County ranks #77 of 77 Oklahoma counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 21.8%). Ottawa County, Oklahoma contains 271 public highway bridges. Roughly 39.1% are rated “Good,” 39.1% “Fair,” and 21.8% “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
39.1%
106 of 271 rated 7-9
Fair condition
39.1%
106 of 271 rated 5-6
Poor condition
21.8%
59 of 271 rated 4 or below
In-state Poor-share rank
#77 of 77
Among Oklahoma counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 271 NBI-tracked bridges by lowest applicable component rating.
Good 39.1% (106)
Fair 39.1% (106)
Poor 21.8% (59)
Ottawa County's Poor-condition bridges carry 12,724 vehicle crossings a day
That is 1.6% of the county's reported daily bridge traffic on 21.8% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 216 crossings a day against 4,475 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 271 of 271 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
59% of Ottawa County's bridges have passed the 50-year mark
160 of the 271 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 39.1% 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 29.9% of the county's Poor-condition bridge traffic
S.H. 10 over CREEK, built 1944, carries 3,800 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 59-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 12,724 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When Ottawa County's bridges were built
271 bridges with a recorded construction year, grouped by decade
- 1910s 5
1910–1919
5 bridges
- 1920s 1
1920–1929
1 bridges
- 1930s
1930–1939
59 bridges
- 1940s
1940–1949
40 bridges
- 1950s
1950–1959
42 bridges
- 1960s 7
1960–1969
7 bridges
- 1970s 7
1970–1979
7 bridges
- 1980s 12
1980–1989
12 bridges
- 1990s 16
1990–1999
16 bridges
- 2000s
2000–2009
25 bridges
- 2010s
2010–2019
47 bridges
- 2020s 10
2020–2029
10 bridges
What this shows Construction peaked in the 1930s, when 59 of the county's bridges still in the inventory were built, which is 21.8% of those with a recorded year. That cohort is now 85 to 94 years old in the 2024 inventory. Its average build year is 1971, 6 years older than the Oklahoma average of 1977.
How Ottawa County compares with Oklahoma's closest counties by inventory size
The 5 Oklahoma counties nearest Ottawa County in number of bridges, with their condition splits. Its 21.8% Poor share is the 6th-lowest of these 6. Its average build year of 1971 against a peer-group mean of 1977 is 6 years older.
Showing the 5 closest of 76 Oklahoma counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Blaine County | 272 | 66.9% | 26.1% | 7% | 1976 |
| Rogers County | 272 | 44.9% | 46% | 9.2% | 1978 |
| Ottawa County (this page) | 271 | 39.1% | 39.1% | 21.8% | 1971 |
| Major County | 266 | 19.2% | 72.6% | 8.3% | 1987 |
| McCurtain County | 265 | 54.3% | 34% | 11.7% | 1970 |
| Sequoyah County | 263 | 37.3% | 58.2% | 4.6% | 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 Ottawa 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 Ottawa County, both outside Oklahoma so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside OK (271 bridges here).
- Morgan County, AL · 271 bridges
- Yolo County, CA · 271 bridges
- Yazoo County, MS · 271 bridges
- Hall County, NE · 271 bridges
Similar average build year
Nearest mean year-built outside OK (1971 here).
- Wayne County, MI · avg 1971 · 1,026 bridges
- Baltimore County, MD · avg 1971 · 783 bridges
- Washington County, PA · avg 1971 · 655 bridges
- Linn County, OR · avg 1971 · 566 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
All bridges (271)
IRR N4592
FairOver: CREEK
2. W. & 0.8N. OF FAIRLAND, Ottawa, OK
Built 1990 Load: 0.0 t ADT: 100
E0020
FairOver: SQUAW CREEK
9.4 W OF US 69, Ottawa, OK
Built 1935 Load: 0.0 t ADT: 100
IRR E0140
FairOver: CREEK
1.N 2.E OF NARCISSA, Ottawa, OK
Built 1939 Load: 2.9 t ADT: 100
N4560
FairOver: CREEK
4.0MI.N.&1.4W FAIRLAND, Ottawa, OK
Built 1939 Load: 5.9 t ADT: 100
IRR N4520
FairOver: CREEK
1.0 E. & 1.4 S. OF AFTON, Ottawa, OK
Built 1935 Load: 10.7 t ADT: 125
N4520
FairOver: CREEK
3.0NE 1.8 E OF AFRON, Ottawa, OK
Built 1939 Load: 10.8 t ADT: 100
IRR E0020
FairOver: CREEK
6.2W OF US 69, Ottawa, OK
Built 1950 Load: 11.2 t ADT: 100
E0188
FairOver: CREEK
2.5S & 2.5E OF WYANDOTTEE, Ottawa, OK
Built 1940 Load: 12.1 t ADT: 100
IRR N4460
FairOver: ELM CREEK
2.E 1.4N OF MIAMI, Ottawa, OK
Built 1941 Load: 12.2 t ADT: 100
IRR N4580
FairOver: LINK CREEK
.6E OF FAIRLAND, Ottawa, OK
Built 1940 Load: 14.1 t ADT: 100
IRR N4470
FairOver: SQUAW CREEK
N4490E0020008, Ottawa, OK
Built 1940 Load: 15.9 t ADT: 100
IRR 5848C
FairOver: CREEK
.3 N. & .7 W. OF AFTON, Ottawa, OK
Built 1940 Load: 16.6 t ADT: 100
IRR 5818C
FairOver: CREEK
2.4 N. 1.0 E. OF FAIRLAND, Ottawa, OK
Built 1945 Load: 17.6 t ADT: 50
IRR N4660
FairOver: CREEK
E0166N4670000, Ottawa, OK
Built 1938 Load: 18.1 t ADT: 100
IRR N4580
FairOver: LYTLE CREEK
1E OF PITCHER, Ottawa, OK
Built 1939 Load: 18.1 t ADT: 100
5834C
FairOver: CREEK
5.0W&.25S OF N. MIAMI, Ottawa, OK
Built 1940 Load: 18.5 t ADT: 100
IRR E0170
FairOver: CREEK
E0170N4550008, Ottawa, OK
Built 1939 Load: 18.6 t ADT: 100
IRR E0180
FairOver: CREEK
0.4 N. 1.0 W. FAIRLAND, Ottawa, OK
Built 1939 Load: 19.6 t ADT: 100
IRR E0170
FairOver: CREEK
E0170N4550005, Ottawa, OK
Built 1939 Load: 19.6 t ADT: 40
S.H. 10 C
FairOver: CREEK
4.3 MI E SH10, Ottawa, OK
Built 1940 Load: 19.6 t ADT: 4,200
S.H. 10 C
FairOver: CREEK
1.5 MI E SH10, Ottawa, OK
Built 1940 Load: 19.6 t ADT: 4,200
S.H. 10
FairOver: CREEK
5.4 MI N DELAWARE CO, Ottawa, OK
Built 1944 Load: 19.6 t ADT: 3,800
IRR E0060
FairOver: BRANCH CREEK
1.N 2E OF PEORIA, Ottawa, OK
Built 1938 Load: 19.6 t ADT: 100
5804C
FairOver: TAR CREEK
.8W OF 69 HWY ON A ST, Ottawa, OK
Built 1974 Load: 19.6 t ADT: 100
N4551
FairOver: CREEK
28TH & E ST., Ottawa, OK
Built 1985 Load: 19.6 t ADT: 200
N4500
FairOver: NORTH SIDE CREEK
MONROE STREET, Ottawa, OK
Built 2008 Load: 19.6 t ADT: 50
N4580
FairOver: CREEK
.5S.E. & S.E. OF FAIRLAN, Ottawa, OK
Built 1938 Load: 20.1 t ADT: 100
IRR E0060
FairOver: CREEK
2.3W 0.5N OF MIAMI, Ottawa, OK
Built 1938 Load: 20.1 t ADT: 100
IRR E0060
FairOver: WARREN BRANCH
1.0E &1.0N OF PEORIA, Ottawa, OK
Built 1938 Load: 20.4 t ADT: 100
IRR E0166
FairOver: CREEK
E0166N4660001, Ottawa, OK
Built 1938 Load: 20.6 t ADT: 100
IRR N4640
FairOver: FLINT CREEK
.5N OF HWY 10, Ottawa, OK
Built 1938 Load: 21.1 t ADT: 100
IRR E0050
FairOver: CREEK
2.5 W. OF COMMERCE, Ottawa, OK
Built 1939 Load: 21.2 t ADT: 100
IRR E0160
FairOver: CREEK
2.4 N. 1.7 W. OF FAIRLAND, Ottawa, OK
Built 1936 Load: 21.5 t ADT: 50
IRR E0050
FairOver: WARREN BRANCH
2.N 1.E OF PEORIA, Ottawa, OK
Built 1940 Load: 21.7 t ADT: 100
IRR N4550
FairOver: CREEK
N4550E0130007, Ottawa, OK
Built 1938 Load: 22.2 t ADT: 100
S.H. 10
FairOver: CREEK
0.1 MI S US60, Ottawa, OK
Built 1944 Load: 22.4 t ADT: 3,800
IRR N4520
FairOver: HORSE CREEK
2.4 N. & 1.0 E. OF AFTON, Ottawa, OK
Built 1939 Load: 23.0 t ADT: 50
U.S. 59
FairOver: CREEK
2.4 MI NW DELAWARE CO, Ottawa, OK
Built 1944 Load: 23.1 t ADT: 3,400
IRR N4608
FairOver: CREEK
1N .8E OF OTTAWA, Ottawa, OK
Built 1939 Load: 23.3 t ADT: 200
U.S. 60
FairOver: CREEK
3.0 MI E US 69, Ottawa, OK
Built 1956 Load: 24.9 t ADT: 3,700
IRR 5806C (N4620)
FairOver: CREEK
2.5E 1N OF QUAPAW, Ottawa, OK
Built 1970 Load: 25.5 t ADT: 200
S.H. 10
FairOver: CREEK
2.9 MI N DELAWARE CO, Ottawa, OK
Built 1947 Load: 26.2 t ADT: 3,800
5838C
FairOver: CREEK
2.5E & 4.5S OF FAIRFIELD, Ottawa, OK
Built 1938 Load: 26.7 t ADT: 500
U.S. 60
FairOver: CREEK
1.3 MI E SH10, Ottawa, OK
Built 1948 Load: 27.0 t ADT: 6,400
U.S. 60
FairOver: SPRING RIVER
11.3 MI E US 69, Ottawa, OK
Built 1940 Load: 27.2 t ADT: 5,000
U.S. 60
FairOver: NEOSHO RIVER
11.1 MI E US 69, Ottawa, OK
Built 1940 Load: 27.2 t ADT: 5,000
CO. RD. E0180
FairOver: WILL ROGERS TP I-44 UND
64.25 MI NE OF TP GATE, Ottawa, OK
Built 1957 Load: 27.5 t ADT: 5,000
CO. RD. E0170
FairOver: WILL ROGERS TP I-44 UND
65.31 MI NE OF TP GATE, Ottawa, OK
Built 1957 Load: 27.5 t ADT: 5,000
IRR 5812C
FairOver: CREEK
0.1 E. OF PEORIA, Ottawa, OK
Built 1930 Load: 27.9 t ADT: 100
CO. RD. E0220
FairOver: WILL ROGERS TP I-44 UND
57.26 MI.NE OF TP.GATE, Ottawa, OK
Built 1957 Load: 27.9 t ADT: 5,000
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.