County profile · official public datasets

Noble County, OK

342 public highway bridges tracked in the FHWA National Bridge Inventory: 35.1% rated Good, 61.4% Fair, 3.5% Poor.

342
Public bridges
35.1%
Good condition
3.5%
Poor condition

The verdict

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

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

Top 29%
lowest Poor share in state
3.5%
Poor-condition share
342
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.

Noble County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Noble County ranks #22 of 77 Oklahoma counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 3.5%). Noble County, Oklahoma contains 342 public highway bridges. Roughly 35.1% are rated “Good,” 61.4% “Fair,” and 3.5% “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.

Total bridges

342

Public highway bridges in Noble County

Good condition

35.1%

120 of 342 rated 7-9

Fair condition

61.4%

210 of 342 rated 5-6

Poor condition

3.5%

12 of 342 rated 4 or below

In-state Poor-share rank

#22 of 77

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

Condition distribution

Share of 342 NBI-tracked bridges by lowest applicable component rating.

Good
35.1% (120)
Fair
61.4% (210)
Poor
3.5% (12)

Noble County's Poor-condition bridges carry 582 vehicle crossings a day

That is 0.1% of the county's reported daily bridge traffic on 3.5% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 49 crossings a day against 1,822 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 342 of 342 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

51.5% of Noble County's bridges have passed the 50-year mark

176 of the 342 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 35.1% 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 25.8% of the county's Poor-condition bridge traffic

E0480 over ELM CREEK, built 1954, carries 150 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 12-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 582 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

When Noble County's bridges were built

342 bridges with a recorded construction year, grouped by decade

bridges

What this shows Construction peaked in the 2010s, when 57 of the county's bridges still in the inventory were built, which is 16.7% of those with a recorded year. That cohort is now 5 to 14 years old in the 2024 inventory. Its average build year (1976) matches the Oklahoma average (1977).

Source FHWA National Bridge Inventory (year built) As of 2024 NBI release

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

The 5 Oklahoma counties nearest Noble County in number of bridges, with their condition splits. Its 3.5% Poor share is the 1st-lowest of these 6. Its average build year of 1976 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 Noble County and the 5 Oklahoma counties closest to it in inventory size
County Bridges Poor
Osage County 366 19.9%
Washita County 361 3.6%
Noble County (this page) 342 3.5%
Carter County 339 4.7%
Garvin County 330 10.9%
Cleveland County 316 5.1%

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

Similar inventory size

Nearest county inventories outside OK (342 bridges here).

Similar average build year

Nearest mean year-built outside OK (1976 here).

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

All 342 Good 120 Fair 210 Poor 12

Good-condition bridges (120)

S.H. 15

Good

Over: LEGEND CREEK

6.5E OF JCT. U.S. 77, Noble, OK

Built 2000 Load: 31.8 t ADT: 750

NS3360

Good

Over: LONG BRANCH CREEK

3MI.E 1.1MI.S US-177/US64, Noble, OK

Built 2008 Load: 31.8 t ADT: 223

N3180

Good

Over: RED ROCK CREEK

3W; .3S OF CERES, Noble, OK

Built 2013 Load: 31.8 t ADT: 40

CO. RD. N3190

Good

Over: CIMARRON TP UNDER

.5 MI E INSTA 35, Noble, OK

Built 1973 Load: 32.5 t ADT: 3,030

CO. RD. N3200

Good

Over: CIMARRON TP UNDER

1 MI W JCT US 77, Noble, OK

Built 1973 Load: 32.5 t ADT: 3,030

CO. RD. N3260

Good

Over: CIMARRON TP UNDER

.2 MI S SH 5, Noble, OK

Built 1973 Load: 32.5 t ADT: 3,030

S.H. 15

Good

Over: CREEK

8.1 MI E GARFIELD CO, Noble, OK

Built 1927 Load: 32.7 t ADT: 410

U.S. 177

Good

Over: CREEK

75 N OF JCT SH15 WEST, Noble, OK

Built 1936 Load: 32.7 t ADT: 4,600

U.S. 177

Good

Over: SPRING CREEK

1.5 MI N JCT US64, Noble, OK

Built 1937 Load: 32.7 t ADT: 3,200

CIMARRON TP

Good

Over: CREEK

T.P. NO 2.98, Noble, OK

Built 1973 Load: 32.7 t ADT: 4,700

U.S. 177

Good

Over: GREASY CREEK & LAKE

7.9 MI N JCT U.S. 62, Noble, OK

Built 1979 Load: 32.7 t ADT: 4,400

S.H. 15

Good

Over: BUNCH CREEK EAST OFLOW

3.1E OF GARFIELD C/L, Noble, OK

Built 2010 Load: 32.7 t ADT: 660

U.S. 64

Good

Over: ELM CREEK

3.3 E. JCT U.S. 77, Noble, OK

Built 2012 Load: 32.7 t ADT: 3,300

U.S. 64

Good

Over: ELM CREEK

3.8 MILES E. JCT U.S. 77, Noble, OK

Built 2012 Load: 32.7 t ADT: 3,300

U.S. 64

Good

Over: MULE CREEK

7.8 MI E JCT U.S. 77, Noble, OK

Built 2014 Load: 32.7 t ADT: 2,500

S.H. 15

Good

Over: DOE CREEK

8.4E OF GARFIELD C/L, Noble, OK

Built 2013 Load: 32.7 t ADT: 410

S.H. 86

Good

Over: COW CREEK

.25 E OF JCT U.S. 77, Noble, OK

Built 2017 Load: 33.6 t ADT: 500

E0360

Good

Over: BUNCH CREEK

2.6S 2.9E OF BILLINGS, Noble, OK

Built 2023 Load: 33.6 t ADT: 220

S.H. 15

Good

Over: CREEK

2.8E OF GARFIELD C/L, Noble, OK

Built 2010 Load: 34.5 t ADT: 660

S.H. 15

Good

Over: CREEK

0.7MI.E. JCT U.S.77, Noble, OK

Built 2008 Load: 34.5 t ADT: 400

N3370

Good

Over: BLACK BEAR CREEK

.8E .8N OF MORRISON, Noble, OK

Built 1996 Load: 35.4 t ADT: 83

N3280

Good

Over: RED ROCK CREEK

.4W 5.2S OF MARLAND, Noble, OK

Built 1997 Load: 35.4 t ADT: 50

N3140

Good

Over: BLACK BEAR CREEK

4.5W 3.4S JCT I-35/US64, Noble, OK

Built 2002 Load: 35.4 t ADT: 50

S.H. 108

Good

Over: LION CREEK

1.2 MI S OF JCT US 64, Noble, OK

Built 1962 Load: 36.2 t ADT: 1,300

E3120

Good

Over: WARREN CREEK

.7E .3N OF LUCIEN, Noble, OK

Built 2006 Load: 36.3 t ADT: 56

U.S. 64

Good

Over: COW CREEK

.7 E JCT. U.S. 77, Noble, OK

Built 2013 Load: 36.3 t ADT: 4,000

E0350

Good

Over: GRASSY CREEK

.1W 2S OF I-35/SH51 JCT, Noble, OK

Built 2017 Load: 36.3 t ADT: 50

U.S. 177

Good

Over: SALT FK ARK RVR OFLOW

8.8 MI N JCT SH15 W, Noble, OK

Built 1996 Load: 37.2 t ADT: 4,800

N3120

Good

Over: EAST WARREN CREEK

.7E .8N OF LUCIEN, Noble, OK

Built 2011 Load: 37.2 t ADT: 250

E0490

Good

Over: MULE CREEK

.1W 1S .1W OF SUMNER, Noble, OK

Built 1992 Load: 38.1 t ADT: 24

E0480

Good

Over: WILLOW CREEK

3.8W OF SUMMER, Noble, OK

Built 2003 Load: 38.1 t ADT: 50

U.S. 177

Good

Over: BLACK BEAR CREEK

2.3N JCT US64/US177, Noble, OK

Built 2010 Load: 38.1 t ADT: 3,300

E0380

Good

Over: RED ROCK CREEK

0.7W US77/SH15 SW CERES, Noble, OK

Built 2010 Load: 38.1 t ADT: 24

E0390

Good

Over: CREEK

2S 2.3E OF CERES, Noble, OK

Built 2008 Load: 38.1 t ADT: 24

U.S. 64 / U.S. 412

Good

Over: HACKBERRY CREEK

4.2 MI E GARFIELD CO, Noble, OK

Built 1969 Load: 38.3 t ADT: 5,100

CIMARRON TP

Good

Over: CREEK

2 MIS N MORRISON, Noble, OK

Built 1973 Load: 38.8 t ADT: 5,100

U.S. 177

Good

Over: BLACK BEAR CREEK S OFLO

2.1N JCT US64/US177, Noble, OK

Built 2010 Load: 39.0 t ADT: 3,300

U.S. 177

Good

Over: BLACK BEAR CREEK N OFLO

2.4N JCT US64/US177, Noble, OK

Built 2010 Load: 39.0 t ADT: 3,300

I-35 NB

Good

Over: U.S. 64 UNDER

JCT OF I-35 & U.S. 64, Noble, OK

Built 2013 Load: 39.0 t ADT: 8,150

I-35 SB

Good

Over: U.S. 64 UNDER

I-35 OVER U.S. 64, Noble, OK

Built 2013 Load: 39.0 t ADT: 8,150

E0510

Good

Over: LONG BRANCH CREEK

1S 3.1E OF US64 & US177, Noble, OK

Built 1989 Load: 39.9 t ADT: 150

N3110

Good

Over: RED ROCK CREEK

1.8S .9E OF BILLINGS, Noble, OK

Built 1993 Load: 39.9 t ADT: 50

E0350

Good

Over: BUNCH CREEK

1.8S 2.3E OF BILLINGS, Noble, OK

Built 2006 Load: 39.9 t ADT: 100

N3190

Good

Over: COW CREEK

1.5S .5E OF PERRY, Noble, OK

Built 2010 Load: 39.9 t ADT: 100

E0480

Good

Over: COW CREEK

7W OF SUMNER, Noble, OK

Built 2014 Load: 39.9 t ADT: 100

U.S. 77

Good

Over: BLACK BEAR CREEK

4.2 N JCT U.S. 64, Noble, OK

Built 2012 Load: 39.9 t ADT: 940

N3310

Good

Over: LONG BRANCH CREEK

4E .8N OF RED ROCK, Noble, OK

Built 2003 Load: 40.8 t ADT: 50

S.H. 15

Good

Over: CREEK

2.8E OF GARFIELD C/L, Noble, OK

Built 2010 Load: 40.8 t ADT: 660

E0370

Good

Over: MONKEY CREEK

7.5 W OF CERES, Noble, OK

Built 2023 Load: 40.8 t ADT: 24

E0490

Good

Over: CREEK

2.7E 2N .3E OF LUCIEN, Noble, OK

Built 2001 Load: 42.6 t ADT: 50

Read our methodology - how this data is sourced, computed, and verified.

Related

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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.