County profile · official public datasets

Pottawatomie County, KS

303 public highway bridges tracked in the FHWA National Bridge Inventory: 48.2% rated Good, 44.6% Fair, 7.3% Poor.

303
Public bridges
48.2%
Good condition
7.3%
Poor condition

The verdict

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

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

77th
of 104 on Poor share
7.3%
Poor-condition share
303
public highway bridges
1975
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 #77 of 104 Kansas counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 7.3%). Pottawatomie County, Kansas contains 303 public highway bridges. Roughly 48.2% are rated “Good,” 44.6% “Fair,” and 7.3% “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

303

Public highway bridges in Pottawatomie County

Good condition

48.2%

146 of 303 rated 7-9

Fair condition

44.6%

135 of 303 rated 5-6

Poor condition

7.3%

22 of 303 rated 4 or below

In-state Poor-share rank

#77 of 104

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

Condition distribution

Share of 303 NBI-tracked bridges by lowest applicable component rating.

Good
48.2% (146)
Fair
44.6% (135)
Poor
7.3% (22)

Pottawatomie County's Poor-condition bridges carry 2,380 vehicle crossings a day

That is 1.6% of the county's reported daily bridge traffic on 7.3% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 108 crossings a day against 690 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 303 of 303 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

45.5% of Pottawatomie County's bridges have passed the 50-year mark

138 of the 303 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 48.2% 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 34.7% of the county's Poor-condition bridge traffic

ONAGA ROAD over VERMILLION RIVER, built 1968, carries 825 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 22-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 2,380 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

303 bridges with a recorded construction year, grouped by decade

bridges

What this shows Construction peaked in the 1970s, when 61 of the county's bridges still in the inventory were built, which is 20.1% of those with a recorded year. That cohort is now 45 to 54 years old in the 2024 inventory. Its average build year (1975) matches the Kansas average (1972).

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

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

The 5 Kansas counties nearest Pottawatomie County in number of bridges, with their condition splits. Its 7.3% Poor share is the 5th-lowest of these 6. Its average build year of 1975 against a peer-group mean of 1972 is in line with the group.

Showing the 5 closest of 103 Kansas counties eligible for comparison.

Bridge inventory size and condition shares for Pottawatomie County and the 5 Kansas counties closest to it in inventory size
County Bridges Poor
Jewell County 307 7.2%
Coffey County 305 1.3%
Osage County 304 6.3%
Pottawatomie County (this page) 303 7.3%
Crawford County 297 7.4%
Ottawa County 295 4.7%

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 Kansas so the neighborhoods are not the same-state size table above.

Similar inventory size

Nearest county inventories outside KS (303 bridges here).

Similar average build year

Nearest mean year-built outside KS (1975 here).

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

All 303 Good 146 Fair 135 Poor 22

All bridges (303)

FLUSH ROAD

Fair

Over: PLEASANT RUN CREEK

0.5S OF FLUSH, Pottawatomie, KS

Built 1980 Load: 29.6 t ADT: 2,850

HAVENSVILLE ROAD

Fair

Over: SPRING CREEK

1.5W OF HAVENSVILLE, Pottawatomie, KS

Built 1981 Load: 29.6 t ADT: 355

SPRING CREEK ROAD

Fair

Over: TRIB. TO BLUFF CREEK

8.0N 3.0W OF FOSTORIA, Pottawatomie, KS

Built 1940 Load: 29.7 t ADT: 50

DYER RD.

Fair

Over: BIG BLUE RIVER

2.0N OF MANHATTAN, Pottawatomie, KS

Built 1974 Load: 29.8 t ADT: 1,210

ONAGA ROAD

Fair

Over: INDIAN CREEK

8.0N 2.0W OF BELVUE, Pottawatomie, KS

Built 1984 Load: 30.4 t ADT: 825

DAY ROAD

Fair

Over: TRIB. VERMILLION RIVER

5.0S 1.0E OF ONAGA, Pottawatomie, KS

Built 1870 Load: 31.0 t ADT: 80

CHRISTIAN ROAD

Fair

Over: TRIB. TO BRUSH CREEK

2.0S 1.0E OF WESTMORELAND, Pottawatomie, KS

Built 1930 Load: 32.4 t ADT: 10

DARLING ROAD

Fair

Over: DOYLE CREEK

1.0W OF ST. MARYS, Pottawatomie, KS

Built 1970 Load: 32.4 t ADT: 10

BURKLAND RAVINE RD

Fair

Over: TRIB. TO TUTTLE RESV.

1.0N 4.0W OF OLSBURG, Pottawatomie, KS

Built 1930 Load: 32.7 t ADT: 50

SHANNON CREEK RD.

Fair

Over: TRIB. TO TUTTLE RESV.

6.8N 1.0E OF OLSBURG, Pottawatomie, KS

Built 1940 Load: 32.7 t ADT: 20

PINE STREET

Fair

Over: TRIB. TO KANSAS RIVER

INTER. OF 9TH. & PINE, Pottawatomie, KS

Built 1964 Load: 32.7 t ADT: 400

FLUSH ROAD

Fair

Over: HOPKINS CREEK

1.5S OF FLUSH, Pottawatomie, KS

Built 1979 Load: 33.2 t ADT: 2,850

ROLLING PRAIRIE RD

Fair

Over: TRIB. TO JIM CREEK

3.0S 3.0W OF ONAGA, Pottawatomie, KS

Built 1940 Load: 33.3 t ADT: 10

WHITE EAGLE ROAD

Fair

Over: TRIB. TO ADAMS CREEK

1.0N 4.0E OF WESTMORELAND, Pottawatomie, KS

Built 2017 Load: 33.8 t ADT: 10

K16 HWY

Fair

Over: MILL CREEK

0.72 MI W K259, Pottawatomie, KS

Built 1965 Load: 34.4 t ADT: 730

FREMONT ROAD

Fair

Over: TRIB. TO MILL CREEK

2.0E OF WHEATON, Pottawatomie, KS

Built 1940 Load: 35.1 t ADT: 10

MCINTYER CREEK RD.

Fair

Over: MCINTIRE CREEK

4.2S 2.5E OF OLDSBURG, Pottawatomie, KS

Built 1989 Load: 35.4 t ADT: 50

FOX ROAD

Fair

Over: TRIB. TO INDIAN CREEK

2.0N 6.0E OF WESTMORELAND, Pottawatomie, KS

Built 1940 Load: 35.5 t ADT: 10

WELSH ROAD

Fair

Over: TRIB TO LOST CREEK

3.5N 0.4E OF BELVUE, Pottawatomie, KS

Built 2012 Load: 35.7 t ADT: 10

US24 HWY

Fair

Over: RILEY CREEK

3.49 M E BROADWAY(BELVUE), Pottawatomie, KS

Built 1928 Load: 35.8 t ADT: 3,890

BRODERICK ROAD

Fair

Over: BRUSH CREEK

4.0E 2.6S OF WESTMORELAND, Pottawatomie, KS

Built 1989 Load: 36.0 t ADT: 10

ROLLING PRAIRIE RD

Fair

Over: TRIB. TO MILL CREEK

2.8W 0.3S OF ONAGA, Pottawatomie, KS

Built 1989 Load: 36.0 t ADT: 50

K16 HWY

Fair

Over: UNION PACIFIC RAILROAD

0.43 MI E K259, Pottawatomie, KS

Built 1965 Load: 36.3 t ADT: 930

WHEATON ROAD

Fair

Over: ADAMS CREEK

1.4S 5.0E OF WESTMORELAND, Pottawatomie, KS

Built 1988 Load: 36.9 t ADT: 570

K63 HWY

Fair

Over: BARTLETT CREEK

8.28 MI. N US24, Pottawatomie, KS

Built 1972 Load: 39.0 t ADT: 725

WELSH ROAD

Fair

Over: TRIB TO LOST CREEK

3.5N 0.5E OF BELVUE, Pottawatomie, KS

Built 2012 Load: 39.6 t ADT: 10

GROVE LANE

Fair

Over: EAST FORK ADAMS CREEK

2.0S 6.0E OF WESTMORELAND, Pottawatomie, KS

Built 1997 Load: 41.4 t ADT: 10

GREEN VALLEY ROAD

Fair

Over: TRIB. TO BIG BLUE RIVER

1.0N 5.0W OF ST. GEORGE, Pottawatomie, KS

Built 1984 Load: 41.8 t ADT: 6,314

OREGON TRAIL ROAD

Fair

Over: DOYLE CREEK

0.5N 1.0W OF ST. MARYS, Pottawatomie, KS

Built 1996 Load: 42.3 t ADT: 50

ONAGA ROAD

Fair

Over: JIM CREEK

6.0S 1.0W OF ONAGA, Pottawatomie, KS

Built 1987 Load: 43.9 t ADT: 155

DUTCH CREEK ROAD

Fair

Over: MUD CREEK

2.5N 1.0W OF DULUTH, Pottawatomie, KS

Built 1930 Load: 45.3 t ADT: 80

CAMP CREEK ROAD

Fair

Over: POMEROY CREEK

8.0N 2.0W OF BELVUE, Pottawatomie, KS

Built 1999 Load: 47.8 t ADT: 10

K-99 HWY

Fair

Over: ROCK CREEK

2.82 MI N US24, Pottawatomie, KS

Built 1990 Load: 52.2 t ADT: 2,000

LOST TRAIL ROAD

Fair

Over: TRIB. TO LOST CREEK

2.5N 0.5E OF BELVUE, Pottawatomie, KS

Built 1940 Load: 59.8 t ADT: 10

EXCELSOR ROAD

Fair

Over: JIM CREEK

2.5S 3.0E OF WHEATON, Pottawatomie, KS

Built 2004 Load: 76.1 t ADT: 10

CARNAHAN ROAD

Good

Over: MCINTIRE CREEK

7.0S 1.5E OF OLSBURG, Pottawatomie, KS

Built 1966 Load: 10.1 t ADT: 310

CAMP CREEK ROAD

Good

Over: TRIB. VERMILLION RIVER

7.0N 1.0W OF BELVUE, Pottawatomie, KS

Built 1990 Load: 11.0 t ADT: 10

CEDAR CREEK ROAD

Good

Over: TRIB. TO CEDAR CREEK

2.0S 6.0W OF FLUSH, Pottawatomie, KS

Built 1993 Load: 12.2 t ADT: 10

BOOTH CREEK ROAD

Good

Over: BOOTH CREEK

4.5S 0.5W OF OLDSBURG, Pottawatomie, KS

Built 1973 Load: 13.6 t ADT: 50

ONAGA ROAD

Good

Over: HISE CREEK

S. EDGE OF ONAGA, Pottawatomie, KS

Built 1985 Load: 13.8 t ADT: 1,105

DRY CREEK ROAD

Good

Over: DRY CREEK

2.0S 2.3W OF OLSBURG, Pottawatomie, KS

Built 1970 Load: 14.5 t ADT: 10

JENKINS ROAD

Good

Over: ROCK CREEK

1.0S 2.0E OF FLUSH, Pottawatomie, KS

Built 1979 Load: 14.5 t ADT: 50

GALILEE ROAD

Good

Over: TRIB. TO FOURMILE CREEK

5.0N 2.5W OF FOSTORIA, Pottawatomie, KS

Built 1966 Load: 16.0 t ADT: 43

ONAGA ROAD

Good

Over: MILL CREEK

0.5S 0.5W OF ONAGA, Pottawatomie, KS

Built 1959 Load: 17.2 t ADT: 340

OREGON TRAIL ROAD

Good

Over: LOST CREEK

1.5N OF BELVUE, Pottawatomie, KS

Built 1973 Load: 18.0 t ADT: 10

HESS RD

Good

Over: DRAINAGE

3.3 MI WEST OF ST MARYS, Pottawatomie, KS

Built 1999 Load: 18.1 t ADT: 50

CARNAHAN ROAD

Good

Over: CARNAHAN CREEK

6.0S OF OLSBURG, Pottawatomie, KS

Built 1966 Load: 18.8 t ADT: 310

EUREKA ROAD

Good

Over: TRIB. TO COAL CREEK

10.0W 4.0N OF EMMETT, Pottawatomie, KS

Built 1984 Load: 18.9 t ADT: 50

CROSS CREEK ROAD

Good

Over: CROSS CREEK

3.0N OF EMMETT, Pottawatomie, KS

Built 1976 Load: 18.9 t ADT: 10

BRUSH CREEK ROAD

Good

Over: ROCK CREEK

1.5N 1.0E OF FLUSH, Pottawatomie, KS

Built 1976 Load: 19.1 t ADT: 80

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.