Total bridges
272
Public highway bridges in Blaine County
County profile · official public datasets
Blaine County, OK
272 public highway bridges tracked in the FHWA National Bridge Inventory: 66.9% rated Good, 26.1% Fair, 7% Poor.
- 272
- Public bridges
- 66.9%
- Good condition
- 7%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Blaine County posts a higher-than-median Poor-condition share among rated counties in the state across mid-size county bridge inventory.
- 44th
- of 77 on Poor share
- 7%
- Poor-condition share
- 272
- public highway bridges
- 1976
- 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.
Blaine County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Blaine County ranks #44 of 77 Oklahoma counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 7%). Blaine County, Oklahoma contains 272 public highway bridges. Roughly 66.9% are rated “Good,” 26.1% “Fair,” and 7% “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
66.9%
182 of 272 rated 7-9
Fair condition
26.1%
71 of 272 rated 5-6
Poor condition
7%
19 of 272 rated 4 or below
In-state Poor-share rank
#44 of 77
Among Oklahoma counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 272 NBI-tracked bridges by lowest applicable component rating.
Good 66.9% (182)
Fair 26.1% (71)
Poor 7% (19)
Blaine County's Poor-condition bridges carry 1,100 vehicle crossings a day
That is 0.8% of the county's reported daily bridge traffic on 7% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 58 crossings a day against 647 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 272 of 272 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
48.2% of Blaine County's bridges have passed the 50-year mark
131 of the 272 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 66.9% 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 9.1% of the county's Poor-condition bridge traffic
E0660 over N. CANADIAN RIVER, built 1915, 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 19-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 1,100 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When Blaine County's bridges were built
272 bridges with a recorded construction year, grouped by decade
- 1910s 2
1910–1919
2 bridges
- 1930s
1930–1939
42 bridges
- 1940s 14
1940–1949
14 bridges
- 1950s
1950–1959
25 bridges
- 1960s
1960–1969
24 bridges
- 1970s
1970–1979
25 bridges
- 1980s
1980–1989
39 bridges
- 1990s
1990–1999
33 bridges
- 2000s
2000–2009
35 bridges
- 2010s
2010–2019
26 bridges
- 2020s 7
2020–2029
7 bridges
What this shows Construction peaked in the 1930s, when 42 of the county's bridges still in the inventory were built, which is 15.4% of those with a recorded year. That cohort is now 85 to 94 years old in the 2024 inventory. Its average build year (1976) matches the Oklahoma average (1977).
How Blaine County compares with Oklahoma's closest counties by inventory size
The 5 Oklahoma counties nearest Blaine County in number of bridges, with their condition splits. Its 7% Poor share is the 2nd-lowest of these 6. Its average build year of 1976 against a peer-group mean of 1976 is in line with the group.
Showing the 5 closest of 76 Oklahoma counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Rogers County | 272 | 44.9% | 46% | 9.2% | 1978 |
| Blaine County (this page) | 272 | 66.9% | 26.1% | 7% | 1976 |
| Ottawa County | 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 Blaine 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 Blaine County, both outside Oklahoma so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside OK (272 bridges here).
- Rock Island County, IL · 272 bridges
- Berrien County, MI · 272 bridges
- Bolivar County, MS · 272 bridges
- Morton County, ND · 272 bridges
Similar average build year
Nearest mean year-built outside OK (1976 here).
- Marion County, IN · avg 1976 · 958 bridges
- Mohave County, AZ · avg 1976 · 641 bridges
- Prince George's County, MD · avg 1976 · 576 bridges
- New Castle County, DE · avg 1976 · 527 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
Good-condition bridges (182)
N2620
GoodOver: CREEK
3.5S 1W OKEENE, Blaine, OK
Built 2004 Load: 29.0 t ADT: 50
S.H. 8
GoodOver: CREEK
7.8 MI S S.H. 51 OKEENE, Blaine, OK
Built 1953 Load: 29.4 t ADT: 1,300
IRR E0920
GoodOver: CREEK
3.5S 7.4W OF GREENFIEL, Blaine, OK
Built 1972 Load: 29.9 t ADT: 30
0634C
GoodOver: LUMPMOUTH CREEK
3.5 S 0.9 W OF GEARY, Blaine, OK
Built 1988 Load: 29.9 t ADT: 40
N2600
GoodOver: CREEK
2.5 W & .5 S OF GEARY, Blaine, OK
Built 1996 Load: 29.9 t ADT: 50
S.H. 3
GoodOver: CREEK
7.3 E. U.S. 270 WATONGA, Blaine, OK
Built 1937 Load: 31.0 t ADT: 2,000
E0860
GoodOver: CHICKEN CREEK
5.S 3.7W OF WATONGA, Blaine, OK
Built 1950 Load: 31.8 t ADT: 30
E0680
GoodOver: CREEK
2.S 2.8W OF CANTON, Blaine, OK
Built 1997 Load: 31.8 t ADT: 75
N2470
GoodOver: CREEK
12.5N OF GRANFIELD, Blaine, OK
Built 2004 Load: 31.8 t ADT: 24
N2580
GoodOver: SPRING CREEK
5W 2.8S S.H. 58 & S.H. 8, Blaine, OK
Built 2010 Load: 31.8 t ADT: 30
E0680
GoodOver: SALT CREEK
6 S & 1.8 E OF OKEENE, Blaine, OK
Built 2023 Load: 31.8 t ADT: 100
FAS 0619
GoodOver: CREEK
.5 N OF SH 51, Blaine, OK
Built 1933 Load: 32.7 t ADT: 200
E0620
GoodOver: CREEK
6.7 W OF OKEENE, Blaine, OK
Built 1939 Load: 32.7 t ADT: 50
FAS 0603
GoodOver: CREEK
4 S .2 E OF HITCHCOCK, Blaine, OK
Built 1947 Load: 32.7 t ADT: 30
IRR E0910
GoodOver: HORSE CREEK
2.5S 1.E OF GREENFIELD, Blaine, OK
Built 1948 Load: 32.7 t ADT: 50
FAS 0619
GoodOver: CREEK
2.9 N OF SH 51, Blaine, OK
Built 1958 Load: 32.7 t ADT: 200
FAS 0619
GoodOver: CREEK
2.1 N OF SH 51, Blaine, OK
Built 1958 Load: 32.7 t ADT: 200
FAS 0619
GoodOver: CREEK
.8 N OF SH 51, Blaine, OK
Built 1958 Load: 32.7 t ADT: 200
FAS 0613
GoodOver: OTTER CREEK
6.8 SE OF HITCHCOCK, Blaine, OK
Built 1958 Load: 32.7 t ADT: 200
FAS 0613
GoodOver: WILLOW CREEK
3.5 E .5 S HITCHCOCK, Blaine, OK
Built 1958 Load: 32.7 t ADT: 200
FAS 0613
GoodOver: COOPER CREEK
3.5E 1.6S OF HITCHCOCK, Blaine, OK
Built 1958 Load: 32.7 t ADT: 200
FAS 0629
GoodOver: CREEK
1.5W .5S OF GEARY, Blaine, OK
Built 1960 Load: 32.7 t ADT: 100
FAS 0629
GoodOver: CREEK
.5S 1.5W OF GEARY, Blaine, OK
Built 1960 Load: 32.7 t ADT: 100
FAS 0607
GoodOver: CREEK
1.7 E OF SOUTHARD, Blaine, OK
Built 1960 Load: 32.7 t ADT: 200
FAS 0607
GoodOver: CREEK
1.9 E OF SOUTHARD, Blaine, OK
Built 1960 Load: 32.7 t ADT: 200
FAS 0607
GoodOver: HORSE CREEK
1.1 E OF SOUTHARD, Blaine, OK
Built 1961 Load: 32.7 t ADT: 200
S.H. 51 ALT.
GoodOver: CREEK
5.4 MI N JCT S.H. 51, Blaine, OK
Built 1967 Load: 32.7 t ADT: 620
S.H. 51 ALT.
GoodOver: CREEK
5.9 MI N JCT S.H. 51, Blaine, OK
Built 1967 Load: 32.7 t ADT: 620
FAS 0618
GoodOver: CREEK
1.5 W OF GEARY, Blaine, OK
Built 1969 Load: 32.7 t ADT: 100
FAS 0601
GoodOver: CREEK
.75 W OF HOMESTEAD, Blaine, OK
Built 1973 Load: 32.7 t ADT: 200
FAS 0613
GoodOver: CREEK
7MI E 4.6MI N WATONGA, Blaine, OK
Built 1974 Load: 32.7 t ADT: 200
FAS 0613
GoodOver: CREEK
7MI E 1.7MI N WATONGA, Blaine, OK
Built 1974 Load: 32.7 t ADT: 200
FAS 0613
GoodOver: CREEK
7 MI E 1 MI N WATONGA, Blaine, OK
Built 1974 Load: 32.7 t ADT: 200
FAS 0618
GoodOver: CREEK
7.7 SW OF WATONGA, Blaine, OK
Built 1982 Load: 32.7 t ADT: 24
0618C
GoodOver: NINE MILE CREEK
8. S .8 W OF CANTON, Blaine, OK
Built 1983 Load: 32.7 t ADT: 50
FAS 0624
GoodOver: CHICKEN CREEK
4.0 S 2.5 W WATONGA, Blaine, OK
Built 1983 Load: 32.7 t ADT: 50
0618C
GoodOver: CREEK
8. S 1.7 W OF CANTON, Blaine, OK
Built 1983 Load: 32.7 t ADT: 50
E0920
GoodOver: HORSE CREEK
3.3S OF GREENFIELD, Blaine, OK
Built 1985 Load: 32.7 t ADT: 50
N2670
GoodOver: KINGFISHER CREEK
9.5 E .9 N OF WATONGA, Blaine, OK
Built 1986 Load: 32.7 t ADT: 50
0608C
GoodOver: SALT CREEK
4 S;4.3 E OF OKEENE, Blaine, OK
Built 1991 Load: 32.7 t ADT: 100
FAS 0612
GoodOver: CREEK
9.5 W 5.0 N WATONGA, Blaine, OK
Built 1992 Load: 32.7 t ADT: 100
N2620
GoodOver: SPRING CREEK
1.1S 1.W OF OKEENE, Blaine, OK
Built 1994 Load: 32.7 t ADT: 100
N2680
GoodOver: SALT CREEK
3.6S 5.E OF OKEENE, Blaine, OK
Built 1992 Load: 32.7 t ADT: 100
N2600
GoodOver: SPRING CREEK
3.W 2.9S OF OKEENE, Blaine, OK
Built 2000 Load: 32.7 t ADT: 150
S.H. 51 A
GoodOver: CREEK
1.5 MI S JCT S.H. 51, Blaine, OK
Built 1999 Load: 32.7 t ADT: 840
IRR E0920
GoodOver: SQUAW CREEK
3.5S 8.W OF GREENFIELD, Blaine, OK
Built 1998 Load: 32.7 t ADT: 30
U.S. 270
GoodOver: CREEK
4.1MI S JCT S.H. 33, Blaine, OK
Built 1998 Load: 32.7 t ADT: 5,000
E0680
GoodOver: CREEK
2S OF CANTON, Blaine, OK
Built 2001 Load: 32.7 t ADT: 100
N2660
GoodOver: CEDAR CREEK
4S 5.9E OF HITCHCOCK, Blaine, OK
Built 2001 Load: 32.7 t ADT: 100
U.S. 270 /U.S. 281
GoodOver: CREEK
12.8 MI S/E JCT S.H. 33, Blaine, OK
Built 2002 Load: 32.7 t ADT: 2,400
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.