County profile · official public datasets

Tulsa County, OK

1,135 public highway bridges tracked in the FHWA National Bridge Inventory: 47.1% rated Good, 47.1% Fair, 5.7% Poor.

1,135
Public bridges: 47.1%
Good condition: 5.7%
Poor condition

The verdict

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

Tulsa County posts a better-than-median Poor-condition share among rated counties in the state across large county bridge inventory.

Top 42%
lowest Poor share in state: 5.7%
Poor-condition share: 1,135
public highway bridges: 1980
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.

Tulsa County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Tulsa County ranks #32 of 77 Oklahoma counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 5.7%). Tulsa County, Oklahoma contains 1,135 public highway bridges. Roughly 47.1% are rated “Good,” 47.1% “Fair,” and 5.7% “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

1,135

Public highway bridges in Tulsa County

Good condition

47.1%

535 of 1,135 rated 7-9

Fair condition

47.1%

535 of 1,135 rated 5-6

Poor condition

5.7%

65 of 1,135 rated 4 or below

In-state Poor-share rank

#32 of 77

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

Condition distribution

Share of 1,135 NBI-tracked bridges by lowest applicable component rating.

Good

47.1% (535)

Fair

47.1% (535)

Poor

5.7% (65)

Tulsa County's Poor-condition bridges carry 208,962 vehicle crossings a day

That is 1.2% of the county's reported daily bridge traffic on 5.7% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 3,215 crossings a day against 16,981 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 1,135 of 1,135 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

42.8% of Tulsa County's bridges have passed the 50-year mark

486 of the 1,135 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 47.1% 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 16.3% of the county's Poor-condition bridge traffic

U.S. 75 over CREEK, built 1978, carries 34,000 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 65-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 208,962 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

1900s

1
1910s

3
1920s

11
1930s

42
1940s

67
1950s

58
1960s

154
1970s

254
1980s

130
1990s

127
2000s

138
2010s

95
2020s

55

What this shows Construction peaked in the 1970s, when 254 of the county's bridges still in the inventory were built, which is 22.4% of those with a recorded year. That cohort is now 45 to 54 years old in the 2024 inventory. Its average build year (1980) matches the Oklahoma average (1977).

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

The 5 Oklahoma counties nearest Tulsa County in number of bridges, with their condition splits. Its 5.7% Poor share is the 3rd-lowest of these 6. Its average build year of 1980 against a peer-group mean of 1977 is in line with the group.

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

Bridge inventory size and condition shares for Tulsa County and the 5 Oklahoma counties closest to it in inventory size
County	Bridges	Good	Fair	Poor	Avg. built
Oklahoma County	1,216	38.2%	55.8%	6%	1982
Tulsa County (this page)	1,135	47.1%	47.1%	5.7%	1980
Comanche County	593	32.4%	58.9%	8.8%	1976
Garfield County	504	27%	61.3%	11.7%	1970
Canadian County	493	49.5%	47.1%	3.4%	1986
Kiowa County	477	65.4%	31.7%	2.9%	1973

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

Similar inventory size

Nearest county inventories outside OK (1,135 bridges here).

Clark County, NV · 1,141 bridges
Collin County, TX · 1,127 bridges
Pima County, AZ · 1,150 bridges
Riverside County, CA · 1,117 bridges

Similar average build year

Nearest mean year-built outside OK (1980 here).

Miami-Dade County, FL · avg 1980 · 1,057 bridges
Pulaski County, AR · avg 1980 · 721 bridges
McLennan County, TX · avg 1980 · 714 bridges
Hinds County, MS · avg 1980 · 663 bridges

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

All 1,135 Good 535 Fair 535 Poor 65

All bridges (1,135)

Sort:

Tulsa County Bridge Snapshot

Condition distribution

Tulsa County's Poor-condition bridges carry 208,962 vehicle crossings a day

42.8% of Tulsa County's bridges have passed the 50-year mark

One structure carries 16.3% of the county's Poor-condition bridge traffic

How Tulsa 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

All bridges (1,135)

I-44 WB

N4020 (GARNETT)

N3964 S. RIVERSIDE

W. 111TH STREET

S.H11 EB TO I244EB

S.H. 266

S.H. 11 WB

U.S. 75 SB

S.H. 20

U.S. 64 SD (41 ST)

GILCREASE EXPY

GILCREASE EXPY SB

U.S. 75 SB

MAIN ST.

S.H. 51

S.H. 51

I-44 WB

I-44 EB

CREEK TP

I-44 E.B.

U.S. 64 /US75/SH51

U.S. 75 RAMP N-E

CREEK TP

N4030(129TH E AVE)

S. 161ST E. AVE.

E0605

S. 145TH E. AVE.

FAU 8441 (GARNETT

S. 129TH E. AVE.

I-44 W.B.

N3970(HARVARD)

S.H. 20

S.H. 11

LYNN LN.

CREEK TP RAMP

N3975 (PITT.)

U.S. 75 SB

U.S. 75 NB

U.S. 75 NB

7210C(86TH. ST.

7202C

I-244 RAMP EB

U.S. 64

CREEK TP

N4015

I-444 RAMP

U.S. 75

CREEK TP

CREEK TP

CREEK TP

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