County profile · official public datasets

Osborne County, KS

244 public highway bridges tracked in the FHWA National Bridge Inventory: 52.5% rated Good, 40.2% Fair, 7.4% Poor.

244
Public bridges
52.5%
Good condition
7.4%
Poor condition

The verdict

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

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

78th
of 104 on Poor share
7.4%
Poor-condition share
244
public highway bridges
1967
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.

Osborne County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Osborne County ranks #78 of 104 Kansas counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 7.4%). Osborne County, Kansas contains 244 public highway bridges. Roughly 52.5% are rated “Good,” 40.2% “Fair,” and 7.4% “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

244

Public highway bridges in Osborne County

Good condition

52.5%

128 of 244 rated 7-9

Fair condition

40.2%

98 of 244 rated 5-6

Poor condition

7.4%

18 of 244 rated 4 or below

In-state Poor-share rank

#78 of 104

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

Condition distribution

Share of 244 NBI-tracked bridges by lowest applicable component rating.

Good
52.5% (128)
Fair
40.2% (98)
Poor
7.4% (18)

Osborne County's Poor-condition bridges carry 1,395 vehicle crossings a day

That is 3.2% of the county's reported daily bridge traffic on 7.5% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 78 crossings a day against 224 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 241 of 244 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

65.2% of Osborne County's bridges have passed the 50-year mark

159 of the 244 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 52.5% 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 47% of the county's Poor-condition bridge traffic

US24 HWY over S F SOLOMON R DRAIN, built 1957, carries 655 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 18-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 1,395 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

When Osborne County's bridges were built

244 bridges with a recorded construction year, grouped by decade

bridges

What this shows Construction peaked in the 1960s, when 57 of the county's bridges still in the inventory were built, which is 23.4% of those with a recorded year. That cohort is now 55 to 64 years old in the 2024 inventory. Its average build year is 1967, 5 years older than the Kansas average of 1972.

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

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

The 5 Kansas counties nearest Osborne County in number of bridges, with their condition splits. Its 7.4% Poor share is the 5th-lowest of these 6. Its average build year of 1967 against a peer-group mean of 1976 is 9 years older.

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

Bridge inventory size and condition shares for Osborne County and the 5 Kansas counties closest to it in inventory size
County Bridges Poor
Jackson County 246 6.9%
Norton County 244 2%
Osborne County (this page) 244 7.4%
Wabaunsee County 242 10.3%
Barber County 241 1.2%
Leavenworth County 241 2.9%

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

Similar inventory size

Nearest county inventories outside KS (244 bridges here).

Similar average build year

Nearest mean year-built outside KS (1967 here).

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

All 244 Good 128 Fair 98 Poor 18

All bridges (244)

S. 170th RD.

Good

Over: EAST KILL CREEK

3.9S 6.0W OF OSBORNE, Osborne, KS

Built 2021 Load: 38.6 t ADT: 25

W. 280th DR.

Good

Over: EAST FORK WOLF CREEK

19.0S 6.6E OF OSBORNE, Osborne, KS

Built 2015 Load: 40.2 t ADT: 25

W. 160th DR.

Good

Over: INDIAN CREEK

7.0S 1.4E OF OSBORNE, Osborne, KS

Built 2007 Load: 42.6 t ADT: 25

W. 180th DR.

Good

Over: TRIBUTARY TO TWIN CREEK

9.0S 1.8E OF OSBORNE, Osborne, KS

Built 2020 Load: 42.8 t ADT: 15

S. 90th AVE.

Good

Over: SOUTH FORK SOLOMON RIVER

0.8S 2.0E OF OSBORNE, Osborne, KS

Built 2018 Load: 43.7 t ADT: 30

W. 70th DR.

Good

Over: SOUTH FORK SOLOMON RIVER

2.5E OF ALTON, Osborne, KS

Built 2016 Load: 44.1 t ADT: 30

S 160th AVE.

Good

Over: SOUTH FORK SOLOMON RIVER

0.8S OF BLOOMINGTON, Osborne, KS

Built 2008 Load: 45.3 t ADT: 55

K181 HWY

Good

Over: N FORK SOLOMON RIVER

1.14MI S US 24, Osborne, KS

Built 2015 Load: 46.0 t ADT: 540

S. 210th AVE.

Good

Over: SOUTH FORK SOLOMON RIVER

0.5S 4.0E OF ALTON, Osborne, KS

Built 2010 Load: 46.3 t ADT: 20

S. 290th AVE.

Good

Over: SOUTH FORK SOLOMON RIVER

1.3S 4.3W OF ALTON, Osborne, KS

Built 2000 Load: 46.4 t ADT: 10

W. 20th DR.

Good

Over: NORTH FORK SOLOMON RIVER

2.0N 5.3W OF DOWNS, Osborne, KS

Built 1999 Load: 46.4 t ADT: 20

W. 195th RD.

Good

Over: COVERT CREEK

1.1E OF COVERT, Osborne, KS

Built 2007 Load: 46.5 t ADT: 5

W. 170th DR.

Good

Over: TWIN CREEK

8.0S 2.8E OF OSBORNE, Osborne, KS

Built 2022 Load: 46.6 t ADT: 25

2nd STREET

Good

Over: DRAINAGE TO PARADISE CRK

WEST EDGE OF NATOMA, Osborne, KS

Built 1953 Load: 46.7 t ADT: 50

S. 80th AVE.

Good

Over: NORTH FORK SOLOMON RIVER

1.2N 5.0W OF DOWNS, Osborne, KS

Built 2009 Load: 47.0 t ADT: 15

K-181 HWY

Good

Over: TWIN CREEK

5.99MI S US24, Osborne, KS

Built 2023 Load: 48.6 t ADT: 415

W. 290th DR.

Good

Over: WOLF CREEK

9.5S 3.9E OF COVERT, Osborne, KS

Built 2003 Load: 49.5 t ADT: 25

S. 190th AVE.

Good

Over: SOUTH FORK SOLOMON RIVER

0.3S 5.2E OF ALTON, Osborne, KS

Built 2012 Load: 50.8 t ADT: 25

US24 HWY

Good

Over: N F SOLOMON R DRAIN

6.40MI E NJCT U281, Osborne, KS

Built 1949 Load: 51.7 t ADT: 1,340

S. 70th AVE.

Good

Over: TRIB. TO FOURMILE CREEK

18.5S 4.0E OF OSBORNE, Osborne, KS

Built 2000 Load: 54.3 t ADT: 30

S. 10th AVE.

Good

Over: CARR CREEK DRAINAGE

7.1S 10.0E of OSBORNE, Osborne, KS

Built 2013 Load: 55.2 t ADT: 50

W. 20th DR.

Good

Over: JAY CREEK

6.0N 3.1E OF BLOOMINGTON, Osborne, KS

Built 1986 Load: 57.4 t ADT: 20

S. 120th AVE.

Good

Over: DRAINAGE DITCH

0.1N OF OSBORNE, Osborne, KS

Built 2023 Load: 61.9 t ADT: 50

S. 55th AVE.

Good

Over: TWIN CREEK

1.8S 5.5E OF OSBORNE, Osborne, KS

Built 2000 Load: 71.4 t ADT: 10

US-24 HWY

Good

Over: N FORK SOLOMON RIVER

5.08 MI E NJCT U281, Osborne, KS

Built 2003 Load: 75.3 t ADT: 1,340

W. 30th DR.

Good

Over: TWELVE MILE CREEK

1.0N 3.1W OF DOWNS, Osborne, KS

Built 1989 Load: 91.6 t ADT: 35

S. 180th AVE.

Poor

Over: TRIB. TO COVERT CREEK

1.0S 0.7W OF COVERT, Osborne, KS

Built 1920 Load: 5.4 t ADT: 10

230th Ave

Poor

Over: MEDICINE CREEK

3.0S 7.0W OF BLOOMINGTON, Osborne, KS

Built 1912 Load: 5.5 t ADT: 10

W. 270th DR.

Poor

Over: WOLF CREEK

7.0S 2.3E OF COVERT, Osborne, KS

Built 1936 Load: 6.1 t ADT: 10

70th Road

Poor

Over: Trib. to S. FORK SOLOMON

3.4E OF ALTON, Osborne, KS

Built 1920 Load: 9.2 t ADT: 5

W. 270th DR.

Poor

Over: TRIB EAST FORK WOLF CR

18.0S 6.8E OF OSBORNE, Osborne, KS

Built 1922 Load: 10.5 t ADT: 15

S. 10th AVE.

Poor

Over: TRIBUTARY TO CARR CREEK

6.5S 10.0E OF OSBORNE, Osborne, KS

Built 1938 Load: 11.8 t ADT: 25

S. 270th AVE.

Poor

Over: PARADISE CREEK

1.3S 2.0E OF NATOMA, Osborne, KS

Built 1914 Load: 12.9 t ADT: 20

S. 190th AVE.

Poor

Over: COVERT CREEK

2.0S 1.8W OF COVERT, Osborne, KS

Built 1920 Load: 13.0 t ADT: 5

S. 270th AVE.

Poor

Over: MEDICINE CREEK

6.2S 16.0W OF OSBORNE, Osborne, KS

Built 1940 Load: 13.7 t ADT: 15

S. 55th AVE.

Poor

Over: SOUTH FORK SOLOMON RIVER

1.0S 5.5E OF OSBORNE, Osborne, KS

Built 1929 Load: 15.6 t ADT: 20

S. 170th AVE.

Poor

Over: KILL CREEK

4.3S 0.6W OF BLOOMINGTON, Osborne, KS

Built 1936 Load: 16.3 t ADT: 10

W. 195th DR.

Poor

Over: TWIN CREEK

10.7S 2.8E OF OSBORNE, Osborne, KS

Built 1930 Load: 16.5 t ADT: 5

W. 275th DR.

Poor

Over: EAGLE CREEK

1.5S 5.3E OF NATOMA, Osborne, KS

Built 1914 Load: 17.1 t ADT: 15

S. 50th AVE.

Poor

Over: EAST FORK WOLF CREEK

17.9S 6.0E OF OSBORNE, Osborne, KS

Built 1938 Load: 17.1 t ADT: 20

W. 280th DR.

Poor

Over: COON CREEK

19.0S 0.6W OF OSBORNE, Osborne, KS

Built 1941 Load: 18.2 t ADT: 15

US281 HWY

Poor

Over: COON CREEK DRAINAGE

2.22MI N RUSSELL CO LINE, Osborne, KS

Built 1948 Load: 19.1 t ADT: 510

S. 290th AVE.

Poor

Over: EAGLE CREEK

4.0N OF NATOMA, Osborne, KS

Built 1936 Load: 32.7 t ADT: 30

US24 HWY

Poor

Over: S F SOLOMON R DRAIN

3.85 MI E ROOKS CO LINE, Osborne, KS

Built 1957 Load: 89.8 t ADT: 655

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.