County profile · official public datasets

Kingfisher County, OK

297 public highway bridges tracked in the FHWA National Bridge Inventory: 23.9% rated Good, 69.4% Fair, 6.7% Poor.

297
Public bridges: 23.9%
Good condition: 6.7%
Poor condition

The verdict

According to the Federal Highway Administration's 2024 National Bridge Inventory.

Kingfisher County pairs a higher-than-median Poor-condition share among rated counties in the state with a newer average build year than the state inventory.

42nd
of 77 on Poor share: 6.7%
Poor-condition share: 297
public highway bridges: 1987
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.

Kingfisher County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Kingfisher County ranks #42 of 77 Oklahoma counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 6.7%). Kingfisher County, Oklahoma contains 297 public highway bridges. Roughly 23.9% are rated “Good,” 69.4% “Fair,” and 6.7% “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.

Total bridges

297

Public highway bridges in Kingfisher County

Good condition

23.9%

71 of 297 rated 7-9

Fair condition

69.4%

206 of 297 rated 5-6

Poor condition

6.7%

20 of 297 rated 4 or below

In-state Poor-share rank

#42 of 77

Among Oklahoma counties with 5+ bridges, lower share ranks better

Condition distribution

Share of 297 NBI-tracked bridges by lowest applicable component rating.

Good

23.9% (71)

Fair

69.4% (206)

Poor

6.7% (20)

Kingfisher County's Poor-condition bridges carry 7,557 vehicle crossings a day

That is 4.8% of the county's reported daily bridge traffic on 6.7% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 378 crossings a day against 1,161 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 297 of 297 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

28.6% of Kingfisher County's bridges have passed the 50-year mark

85 of the 297 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 23.9% 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 33.1% of the county's Poor-condition bridge traffic

U.S. 81 over UP R.R. UNDER, built 1964, carries 2,500 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 20-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 7,557 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

1910s

2
1920s

3
1930s

16
1940s

11
1950s

21
1960s

26
1970s

12
1980s

42
1990s

35
2000s

53
2010s

59
2020s

17

What this shows Construction peaked in the 2010s, when 59 of the county's bridges still in the inventory were built, which is 19.9% of those with a recorded year. That cohort is now 5 to 14 years old in the 2024 inventory. Its average build year is 1987, 10 years newer than the Oklahoma average of 1977.

How Kingfisher County compares with Oklahoma's closest counties by inventory size

The 5 Oklahoma counties nearest Kingfisher County in number of bridges, with their condition splits. Its 6.7% Poor share is the 3rd-lowest of these 6. Its average build year of 1987 against a peer-group mean of 1972 is 15 years newer.

Showing the 5 closest of 76 Oklahoma counties eligible for comparison.

Bridge inventory size and condition shares for Kingfisher County and the 5 Oklahoma counties closest to it in inventory size
County	Bridges	Good	Fair	Poor	Avg. built
Okmulgee County	310	33.2%	49.4%	17.4%	1971
Woods County	310	24.5%	71.6%	3.9%	1986
Seminole County	298	38.6%	49.7%	11.7%	1966
Kingfisher County (this page)	297	23.9%	69.4%	6.7%	1987
Jackson County	292	58.6%	39%	2.4%	1964
Bryan County	286	41.6%	48.6%	9.8%	1974

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 Kingfisher 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 Kingfisher County, both outside Oklahoma so the neighborhoods are not the same-state size table above.

Similar inventory size

Nearest county inventories outside OK (297 bridges here).

Crawford County, KS · 297 bridges
Monroe County, MI · 297 bridges
Sarasota County, FL · 298 bridges
Rutherford County, NC · 298 bridges

Similar average build year

Nearest mean year-built outside OK (1987 here).

St. Louis County, MO · avg 1987 · 912 bridges
Ellis County, TX · avg 1987 · 691 bridges
St. Louis County, MN · avg 1987 · 663 bridges
Palm Beach County, FL · avg 1987 · 610 bridges

Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.

All 297 Good 71 Fair 206 Poor 20

Fair-condition bridges (206)

Sort:

Kingfisher County Bridge Snapshot

Condition distribution

Kingfisher County's Poor-condition bridges carry 7,557 vehicle crossings a day

28.6% of Kingfisher County's bridges have passed the 50-year mark

One structure carries 33.1% of the county's Poor-condition bridge traffic

How Kingfisher County compares with Oklahoma's closest counties by inventory size

Nationwide counties with similar inventory size or average build year

Similar inventory size

Similar average build year

Fair-condition bridges (206)

S.H. 51

E0600

N2910

N2850

N2750

N2880

N2840

N2860

E0660

N2760

U.S. 81

N2840

S.H. 3 & S.H. 33

E0780

N2810

E0850

E0780

N2970

N2970

E0840

S.H. 51

N2770

E0630

S.H. 51

E0660

S.H. 51

N2950

E0600

E0860

U.S. 81

E0860

N2850

E0750

E0830

E0800

E0840

E0690

N2960

N2830

N2980

N2710

N2930

N2740

E0820

E0870

N2710

N2760

E0660

N2930

N2770

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