Total bridges
424
Public highway bridges in Caddo County
County profile · official public datasets
Caddo County, OK
424 public highway bridges tracked in the FHWA National Bridge Inventory: 24.1% rated Good, 63.4% Fair, 12.5% Poor.
- 424
- Public bridges
- 24.1%
- Good condition
- 12.5%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Caddo County posts a higher-than-median Poor-condition share among rated counties in the state across mid-size county bridge inventory.
- 65th
- of 77 on Poor share
- 12.5%
- Poor-condition share
- 424
- 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.
Caddo County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Caddo County ranks #65 of 77 Oklahoma counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 12.5%). Caddo County, Oklahoma contains 424 public highway bridges. Roughly 24.1% are rated “Good,” 63.4% “Fair,” and 12.5% “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
24.1%
102 of 424 rated 7-9
Fair condition
63.4%
269 of 424 rated 5-6
Poor condition
12.5%
53 of 424 rated 4 or below
In-state Poor-share rank
#65 of 77
Among Oklahoma counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 424 NBI-tracked bridges by lowest applicable component rating.
Good 24.1% (102)
Fair 63.4% (269)
Poor 12.5% (53)
Caddo County's Poor-condition bridges carry 8,717 vehicle crossings a day
That is 1.5% of the county's reported daily bridge traffic on 12.5% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 164 crossings a day against 2,314 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 424 of 424 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
39.9% of Caddo County's bridges have passed the 50-year mark
169 of the 424 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 24.1% 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 16.1% of the county's Poor-condition bridge traffic
U.S. 281 over CREEK, built 1933, carries 1,400 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 53-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 8,717 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When Caddo County's bridges were built
424 bridges with a recorded construction year, grouped by decade
- 1920s 4
1920–1929
4 bridges
- 1930s
1930–1939
45 bridges
- 1940s 40
1940–1949
40 bridges
- 1950s 35
1950–1959
35 bridges
- 1960s
1960–1969
41 bridges
- 1970s 6
1970–1979
6 bridges
- 1980s
1980–1989
50 bridges
- 1990s
1990–1999
52 bridges
- 2000s
2000–2009
102 bridges
- 2010s
2010–2019
45 bridges
- 2020s 4
2020–2029
4 bridges
What this shows Construction peaked in the 2000s, when 102 of the county's bridges still in the inventory were built, which is 24.1% of those with a recorded year. That cohort is now 15 to 24 years old in the 2024 inventory. Its average build year (1979) matches the Oklahoma average (1977).
How Caddo County compares with Oklahoma's closest counties by inventory size
The 5 Oklahoma counties nearest Caddo County in number of bridges, with their condition splits. Its 12.5% Poor share is the 5th-lowest of these 6. Its average build year of 1979 against a peer-group mean of 1977 is in line with the group.
Showing the 5 closest of 76 Oklahoma counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Lincoln County | 450 | 37.1% | 49.6% | 13.3% | 1974 |
| Grady County | 449 | 25.6% | 67.3% | 7.1% | 1980 |
| Caddo County (this page) | 424 | 24.1% | 63.4% | 12.5% | 1979 |
| Kay County | 419 | 30.3% | 63.7% | 6% | 1979 |
| Pittsburg County | 411 | 47.2% | 45% | 7.8% | 1971 |
| Pottawatomie County | 408 | 21.6% | 72.1% | 6.4% | 1982 |
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 Caddo 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 Caddo County, both outside Oklahoma so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside OK (424 bridges here).
- Maury County, TN · 424 bridges
- Fayette County, PA · 422 bridges
- Smith County, TX · 427 bridges
- Siskiyou County, CA · 421 bridges
Similar average build year
Nearest mean year-built outside OK (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.
Good-condition bridges (102)
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.