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

Good-condition bridges (128)

W 250th DR_RS 1538

Good

Over: EAST FORK WOLF CREEK

16.0S 4.4E OF OSBORNE, Osborne, KS

Built 1959 Load: 21.3 t ADT: 45

W 220th DR_RS 516

Good

Over: TRIB TO EAGLE CREEK

4.2N 1.0E OF NATOMA, Osborne, KS

Built 1966 Load: 21.8 t ADT: 80

S 200TH AVE_RS 516

Good

Over: TRIB TO COVERT CREEK

1.0S 3.0W OF COVERT, Osborne, KS

Built 1972 Load: 21.8 t ADT: 45

S 210th AVE_RS 863

Good

Over: TRIB SOUTH FORK SOLOMON

2.2N 3.8E OF ALTON, Osborne, KS

Built 1962 Load: 21.8 t ADT: 70

W. 20th DR.

Good

Over: TWELVE MILE CREEK

2.0N 2.9W OF DOWNS, Osborne, KS

Built 1977 Load: 21.8 t ADT: 10

US24 HWY

Good

Over: S F SOLOMON R DRAIN

7.30 MI E ROOKS CO LINE, Osborne, KS

Built 1930 Load: 21.8 t ADT: 770

US24 HWY

Good

Over: S F SOLOMON R DRAIN

0.62MI W SJCT U281, Osborne, KS

Built 1931 Load: 21.8 t ADT: 1,420

SIDEROAD RIGHT

Good

Over: U24 DRAINAGE

4.04MI E NJCT U281 SDRD S, Osborne, KS

Built 1928 Load: 21.8 t ADT: 17

W 200TH DR_RS 516

Good

Over: TRIB TO COVERT CREEK

0.2S 0.7W OF COVERT, Osborne, KS

Built 1972 Load: 22.7 t ADT: 40

CO 691 AVE_RS 832

Good

Over: TRIBUTARY TO OAK CREEK

3.0N 2.0E OF DOWNS, Osborne, KS

Built 1970 Load: 22.7 t ADT: 90

W 10th DR (RS 863)

Good

Over: TRIB TO LAWRENCE CREEK

6.0N 6.0E OF ALTON, Osborne, KS

Built 1962 Load: 22.7 t ADT: 70

S 50th_RS 867

Good

Over: TRIB NORTH FORK SOLOMON

1.5N 2.0W OF DOWNS, Osborne, KS

Built 1970 Load: 22.7 t ADT: 190

S 190th AVE_RS 869

Good

Over: TRIB TO LAWRENCE CREEK

0.5S 8.0W OF PORTIS, Osborne, KS

Built 1965 Load: 22.7 t ADT: 60

W 260th DR_RS 1538

Good

Over: COON CREEK

17.0S 0.6W OF OSBORNE, Osborne, KS

Built 1964 Load: 22.7 t ADT: 60

S. 290th AVE.

Good

Over: TRIB TO PARADISE CREEK

0.5N 0.4W OF NATOMA, Osborne, KS

Built 1968 Load: 22.7 t ADT: 25

S. 135th AVE.

Good

Over: JAY CREEK

5.7N 2.5E OF BLOOMINGTON, Osborne, KS

Built 1986 Load: 22.7 t ADT: 10

US24 HWY

Good

Over: S F SOLOMON R DRAIN

12.74 MI E ROOKS CO LINE, Osborne, KS

Built 1931 Load: 22.7 t ADT: 970

S. 70th AVE.

Good

Over: SOUTH FORK SOLOMON RIVER

0.6S 4.0E OF OSBORNE, Osborne, KS

Built 1996 Load: 23.0 t ADT: 35

W. 215th DR.

Good

Over: COVERT CREEK

1.5S 1.0W OF COVERT, Osborne, KS

Built 1995 Load: 23.3 t ADT: 20

W 150th DR_RS 153

Good

Over: TRIB TO COVERT CREEK

6.0S 1.2W OF OSBORNE, Osborne, KS

Built 1957 Load: 24.5 t ADT: 90

US24 HWY

Good

Over: S F SOLOMON R DRAIN

0.86 MI W SJCT US281, Osborne, KS

Built 1931 Load: 24.5 t ADT: 1,420

S. 270th AVE.

Good

Over: CROOKED CREEK

4.2N 2.2W OF ALTON, Osborne, KS

Built 1988 Load: 24.6 t ADT: 10

S. 160th AVE.

Good

Over: COVERT CREEK

0.9N 1.3E OF COVERT, Osborne, KS

Built 2005 Load: 24.6 t ADT: 15

S 20th AVE_RS 866

Good

Over: TRIB EAST FORK WOLF CR

13.2S 9.0E OF OSBORNE, Osborne, KS

Built 1953 Load: 24.7 t ADT: 100

W 260th DR_RS 1538

Good

Over: WOLF CREEK

6.0S 2.0E OF COVERT, Osborne, KS

Built 1960 Load: 25.4 t ADT: 70

US24 HWY

Good

Over: N F SOLOMON R DRAIN

1.72MI E NJCT U281, Osborne, KS

Built 1949 Load: 25.4 t ADT: 1,340

S. 220th AVE.

Good

Over: KILL CREEK

5.8N 4.7W OF COVERT, Osborne, KS

Built 2011 Load: 26.7 t ADT: 15

W. 130th DR.

Good

Over: TWIN CREEK

4.0S 4.4E OF OSBORNE, Osborne, KS

Built 1988 Load: 27.2 t ADT: 40

US 281 HWY

Good

Over: SOUTH FORK SOLOMON RIVER

1.72 MI S SJCT U24, Osborne, KS

Built 2004 Load: 27.2 t ADT: 895

S. 160th AVE.

Good

Over: COVERT CREEK

1.5N 1.3E OF COVERT, Osborne, KS

Built 2004 Load: 28.6 t ADT: 15

S. 40th AVE.

Good

Over: EAST FORK WOLF CREEK

20.9S 7.0E OF OSBORNE, Osborne, KS

Built 1994 Load: 28.8 t ADT: 10

S. 150th AVE.

Good

Over: WOLF CREEK

18.8S 4.0W OF OSBORNE, Osborne, KS

Built 1983 Load: 29.5 t ADT: 20

W. 280th DR.

Good

Over: PARADISE CREEK

2.0S 2.8E OF NATOMA, Osborne, KS

Built 2005 Load: 29.7 t ADT: 15

S. 160th AVE.

Good

Over: COVERT CREEK

1.3N 1.3E OF COVERT, Osborne, KS

Built 2017 Load: 30.0 t ADT: 15

S. 40th AVE.

Good

Over: E. FORK WOLF CREEK

20.7S 7.0E OF OSBORNE, Osborne, KS

Built 2020 Load: 31.3 t ADT: 20

US24 HWY

Good

Over: N F SOLOMON R DRAIN

2.27MI E NJCT U281, Osborne, KS

Built 1949 Load: 31.8 t ADT: 1,340

K181 HWY

Good

Over: N F SOLOMON R DRAIN

3.64MI N US24, Osborne, KS

Built 1950 Load: 31.8 t ADT: 745

S. 200th AVE.

Good

Over: KILL CREEK

6.9N 2.7W OF COVERT., Osborne, KS

Built 1976 Load: 32.1 t ADT: 30

S. 40th AVE.

Good

Over: TWIN CREEK

1.7S 7.0E OF OSBORNE, Osborne, KS

Built 1991 Load: 32.6 t ADT: 20

S. 115th AVE.

Good

Over: DRAINAGE DITCH

0.2N OF OSBORNE, Osborne, KS

Built 1979 Load: 32.7 t ADT: 50

US24 HWY

Good

Over: S F SOLOMON R DRAIN

8.63 MI E ROOKS CO LINE, Osborne, KS

Built 1962 Load: 32.7 t ADT: 770

OLD US 24 ALIN

Good

Over: SOLOMON RIVER DR

11.15MI E ROOKS CO LINE, Osborne, KS

Built 1931 Load: 33.6 t

W. 290 DR.

Good

Over: EAGLE CREEK

3.0S 5.8E OF NATOMA, Osborne, KS

Built 2023 Load: 34.3 t ADT: 20

S 70th AVE_RS 1538

Good

Over: TRIB EAST FORK WOLF CR

16.8S 4.0E OF OSBORNE, Osborne, KS

Built 1987 Load: 34.8 t ADT: 45

W. 250th DR.

Good

Over: TRIB TO EAGLE CREEK

1.0N 7.3E OF NATOMA, Osborne, KS

Built 1989 Load: 34.8 t ADT: 30

S. 1st AVE.

Good

Over: TRIBUTARY TO CARR CREEK

7.5S 11.0E OF OSBORNE, Osborne, KS

Built 2007 Load: 35.0 t ADT: 20

US24 HWY

Good

Over: S F SOLOMON R DRAIN

0.50 MI E ROOKS CO LINE, Osborne, KS

Built 1967 Load: 35.4 t ADT: 540

W 260th DR_RS 1538

Good

Over: FOUR MILE CREEK

17.0S 2.9E OF OSBORNE, Osborne, KS

Built 1987 Load: 36.1 t ADT: 70

S. 270th AVE.

Good

Over: PARADISE CREEK

1.1S 2.0E OF NATOMA, Osborne, KS

Built 1989 Load: 36.5 t ADT: 30

W. 120th DR.

Good

Over: INDIAN CREEK

3.0S 4.1E OF OSBORNE, Osborne, KS

Built 1997 Load: 37.2 t ADT: 5

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.