County profile · official public datasets

Pottawatomie County, OK

408 public highway bridges tracked in the FHWA National Bridge Inventory: 21.6% rated Good, 72.1% Fair, 6.4% Poor.

408
Public bridges
21.6%
Good condition
6.4%
Poor condition

The verdict

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

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

Top 49%
lowest Poor share in state
6.4%
Poor-condition share
408
public highway bridges
1982
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.

Pottawatomie County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Pottawatomie County ranks #38 of 77 Oklahoma counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 6.4%). Pottawatomie County, Oklahoma contains 408 public highway bridges. Roughly 21.6% are rated “Good,” 72.1% “Fair,” and 6.4% “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

408

Public highway bridges in Pottawatomie County

Good condition

21.6%

88 of 408 rated 7-9

Fair condition

72.1%

294 of 408 rated 5-6

Poor condition

6.4%

26 of 408 rated 4 or below

In-state Poor-share rank

#38 of 77

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

Condition distribution

Share of 408 NBI-tracked bridges by lowest applicable component rating.

Good
21.6% (88)
Fair
72.1% (294)
Poor
6.4% (26)

Pottawatomie County's Poor-condition bridges carry 52,155 vehicle crossings a day

That is 4.7% of the county's reported daily bridge traffic on 6.4% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 2,006 crossings a day against 4,429 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 408 of 408 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

36.3% of Pottawatomie County's bridges have passed the 50-year mark

148 of the 408 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 21.6% 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 32.1% of the county's Poor-condition bridge traffic

I-40 over U.S. 177 UNDER, built 1961, carries 16,750 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 26-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 52,155 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

When Pottawatomie County's bridges were built

408 bridges with a recorded construction year, grouped by decade

bridges

What this shows Construction peaked in the 2000s, when 109 of the county's bridges still in the inventory were built, which is 26.7% of those with a recorded year. That cohort is now 15 to 24 years old in the 2024 inventory. Its average build year is 1982, 5 years newer than the Oklahoma average of 1977.

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

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

The 5 Oklahoma counties nearest Pottawatomie County in number of bridges, with their condition splits. Its 6.4% Poor share is the 2nd-lowest of these 6. Its average build year of 1982 against a peer-group mean of 1974 is 8 years newer.

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

Bridge inventory size and condition shares for Pottawatomie County and the 5 Oklahoma counties closest to it in inventory size
County Bridges Poor
Caddo County 424 12.5%
Kay County 419 6%
Pittsburg County 411 7.8%
Pottawatomie County (this page) 408 6.4%
Muskogee County 398 10.1%
Creek County 395 20.8%

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

Similar inventory size

Nearest county inventories outside OK (408 bridges here).

Similar average build year

Nearest mean year-built outside OK (1982 here).

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

All 408 Good 88 Fair 294 Poor 26

Good-condition bridges (88)

CO. RD.

Good

Over: I-40 UNDER

4 MI E OK C/L, Pottawatomie, OK

Built 1961 Load: 13.6 t ADT: 250

CO. RD.

Good

Over: I-40 UNDER

4 MI E OK C/L, Pottawatomie, OK

Built 1961 Load: 13.6 t ADT: 500

OKLAHOMA ST.

Good

Over: CREEK

N OF DUNBAR (BENTLEY), Pottawatomie, OK

Built 1986 Load: 19.1 t ADT: 75

E1180

Good

Over: CREEK

2.6 E 2. S SHAWNEE, Pottawatomie, OK

Built 1993 Load: 19.1 t ADT: 1,300

S.H. 9

Good

Over: CREEK

1 MI W JCT 177, Pottawatomie, OK

Built 1937 Load: 19.6 t ADT: 5,800

CO. RD.

Good

Over: I-40 UNDER

2 MI E OK C/L, Pottawatomie, OK

Built 1960 Load: 20.4 t ADT: 300

S.H. 99 SB

Good

Over: SHAN CREEK

0.5 MI N SEMINOLE CO, Pottawatomie, OK

Built 1990 Load: 22.4 t ADT: 2,850

CO. RD.

Good

Over: I-40 UNDER

10.1 MI E OK C/L, Pottawatomie, OK

Built 1962 Load: 23.6 t ADT: 275

U.S. 270 RAMP

Good

Over: U.S. 270 / U.S. 177 UND

US 270RAMP; @ US 270/177, Pottawatomie, OK

Built 1962 Load: 24.0 t ADT: 6,200

S.H. 18

Good

Over: ROCK CREEK

5.2 MI N JCT SH 3E, Pottawatomie, OK

Built 1936 Load: 24.6 t ADT: 8,000

U.S. 270 & OLD 18

Good

Over: CREEK

7.0 MI S JCT SH 3, Pottawatomie, OK

Built 1961 Load: 24.6 t ADT: 12,000

6372C

Good

Over: SALT CREEK

2.4 S OF ANDERSON, Pottawatomie, OK

Built 2003 Load: 25.4 t ADT: 200

S.H. 270

Good

Over: CREEK

2.9 MI S-E JCT OF 102 S, Pottawatomie, OK

Built 1952 Load: 26.1 t ADT: 3,500

U.S. 270

Good

Over: U.P. R.R. & ST. UNDER

2.4MI. S. JCT. S.H. 3, Pottawatomie, OK

Built 2008 Load: 27.2 t ADT: 15,100

U.S. 270

Good

Over: CREEK

1.6 MI E JCT US 177, Pottawatomie, OK

Built 1946 Load: 27.5 t ADT: 6,200

E1120

Good

Over: NORTH DEER CREEK

1.4 W OF DALE, Pottawatomie, OK

Built 1988 Load: 29.9 t ADT: 100

6348C

Good

Over: LITTLE RIVER

.8 S & 3 W OF HARJO, Pottawatomie, OK

Built 2000 Load: 29.9 t ADT: 480

U.S. 270

Good

Over: OLD S.H. 18(G.COOPER UND

7.1 MI S JCT SH 3, Pottawatomie, OK

Built 1997 Load: 30.1 t ADT: 6,100

U.S. 270

Good

Over: BENEDICT ST. UNDER

2.7SE OF JCT SH 3, Pottawatomie, OK

Built 2004 Load: 30.4 t ADT: 15,000

I-40

Good

Over: S.H. 9A UNDER

6 MI E JCT SH 18, Pottawatomie, OK

Built 1963 Load: 30.5 t ADT: 9,450

6336C

Good

Over: BRUNO CREEK

3.9N&1.7E OF SACRED HEART, Pottawatomie, OK

Built 2002 Load: 30.8 t ADT: 100

IRR 6314C

Good

Over: CREEK

1N & .2E OF BETHEL ACRES, Pottawatomie, OK

Built 2009 Load: 30.8 t ADT: 2,000

N3430

Good

Over: LITTLE RIVER

3.2 N & 1.7 E OF CHISNEY, Pottawatomie, OK

Built 2008 Load: 30.8 t ADT: 100

IRR E1340

Good

Over: SALT CREEK TRIB.

.7 W OF PEARSON, Pottawatomie, OK

Built 2013 Load: 30.8 t ADT: 24

S.H. 59B

Good

Over: CREEK

2.7 MI E SH 102, Pottawatomie, OK

Built 1988 Load: 31.7 t ADT: 800

S.H. 59B

Good

Over: CREEK

4.3 MI E SH 102, Pottawatomie, OK

Built 1988 Load: 31.7 t ADT: 870

N3350

Good

Over: CREEK

1.5 S & 2 W OF HAZEL DELL, Pottawatomie, OK

Built 2002 Load: 31.8 t ADT: 50

E1390

Good

Over: CREEK

.8N 1.9E OF ASHER, Pottawatomie, OK

Built 2015 Load: 31.8 t ADT: 50

S.H. 102

Good

Over: CREEK

0.2 MI N OF SH 270, Pottawatomie, OK

Built 1995 Load: 32.4 t ADT: 4,100

U.S. 270

Good

Over: OFLOW

4.4 MI S JCT SH 3, Pottawatomie, OK

Built 1961 Load: 32.7 t ADT: 11,700

I-40 EB

Good

Over: CO. RD. UNDER

2 MI E JCT SH 18, Pottawatomie, OK

Built 1963 Load: 32.7 t ADT: 9,450

S.H. 59B

Good

Over: CREEK

3.6 MI E SH 102, Pottawatomie, OK

Built 1988 Load: 32.7 t ADT: 870

E1350

Good

Over: SALT CREEK

1.2N & 1.3W OF TROUSDALE, Pottawatomie, OK

Built 1990 Load: 32.7 t ADT: 50

S.H. 102

Good

Over: NORTH DEER CREEK

1.3 MI N OF I-40, Pottawatomie, OK

Built 2002 Load: 32.7 t ADT: 3,200

6340C

Good

Over: HULIN CREEK

.2 N & 2.8 E OF WANETTE, Pottawatomie, OK

Built 2004 Load: 32.7 t ADT: 165

I-40

Good

Over: DEER CREEK

5.3E OF OK C/L, Pottawatomie, OK

Built 2007 Load: 32.7 t ADT: 34,400

S.H. 18

Good

Over: CREEK

4 N. JCT. S.H. 3E, Pottawatomie, OK

Built 2007 Load: 32.7 t ADT: 8,600

U.S. 270 NB

Good

Over: S.H. 9 UNDER

8.0 MI S JCT SH 3, Pottawatomie, OK

Built 1964 Load: 33.6 t ADT: 5,050

IRR N3360

Good

Over: DANCE CREEK

2.2 S OF BETHEL ACRES, Pottawatomie, OK

Built 2013 Load: 33.6 t ADT: 150

E1380

Good

Over: MUD CREEK

.9N&1.9E OF SACRED HEART, Pottawatomie, OK

Built 1995 Load: 34.5 t ADT: 100

I-40

Good

Over: S.H. 18 UNDER

JCT SH 18, Pottawatomie, OK

Built 1997 Load: 34.5 t ADT: 11,000

I-40

Good

Over: S.H. 18 UNDER

JCT SH 18, Pottawatomie, OK

Built 1997 Load: 34.5 t ADT: 10,850

N3440

Good

Over: ROCK CREEK

.8 N & 2 W OF JOHNSTON, Pottawatomie, OK

Built 2004 Load: 34.5 t ADT: 50

I-40

Good

Over: CREEK

11.7 MI E OKLA. C/L, Pottawatomie, OK

Built 1962 Load: 36.2 t ADT: 13,150

6318C

Good

Over: CREEK

2.5N & 1.7W OF EARLSBORO, Pottawatomie, OK

Built 1998 Load: 36.3 t ADT: 610

UNION ST.

Good

Over: CREEK

.6 M SOUTH I-40, Pottawatomie, OK

Built 2001 Load: 36.3 t ADT: 150

U.S. 177

Good

Over: SALT CREEK

8.0 MI N C/L, Pottawatomie, OK

Built 1970 Load: 36.6 t ADT: 4,900

S.H. 102

Good

Over: NORTH CANADIAN RIVER

0.7 N OF JCT U.S. 270, Pottawatomie, OK

Built 2015 Load: 36.7 t ADT: 4,100

E1110

Good

Over: OVER SHAN CREEK

2S & .1E OF CENTER VIEW, Pottawatomie, OK

Built 2007 Load: 37.2 t ADT: 100

6368C

Good

Over: POPSHEGO CREEK

.5N 2.9E OF ST LOUIS, Pottawatomie, OK

Built 2010 Load: 37.2 t ADT: 300

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.