Total bridges
244
Public highway bridges in Osborne County
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.
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
- 1900s 1
1900–1909
1 bridges
- 1910s 5
1910–1919
5 bridges
- 1920s 10
1920–1929
10 bridges
- 1930s 21
1930–1939
21 bridges
- 1940s 17
1940–1949
17 bridges
- 1950s
1950–1959
37 bridges
- 1960s
1960–1969
57 bridges
- 1970s 19
1970–1979
19 bridges
- 1980s
1980–1989
25 bridges
- 1990s 17
1990–1999
17 bridges
- 2000s 18
2000–2009
18 bridges
- 2010s 10
2010–2019
10 bridges
- 2020s 7
2020–2029
7 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.
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.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Jackson County | 246 | 36.2% | 56.9% | 6.9% | 1982 |
| Norton County | 244 | 53.7% | 44.3% | 2% | 1980 |
| Osborne County (this page) | 244 | 52.5% | 40.2% | 7.4% | 1967 |
| Wabaunsee County | 242 | 36.8% | 52.9% | 10.3% | 1963 |
| Barber County | 241 | 44.8% | 53.9% | 1.2% | 1974 |
| Leavenworth County | 241 | 61% | 36.1% | 2.9% | 1981 |
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).
- Spencer County, IN · 244 bridges
- Allegan County, MI · 244 bridges
- Seward County, NE · 244 bridges
- Alamance County, NC · 244 bridges
Similar average build year
Nearest mean year-built outside KS (1967 here).
- Los Angeles County, CA · avg 1967 · 3,547 bridges
- Allegheny County, PA · avg 1967 · 1,294 bridges
- Sonoma County, CA · avg 1967 · 609 bridges
- Merced County, CA · avg 1967 · 528 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
All bridges (244)
S 220th AVE_RS1573
FairOver: TRIBUTARY TO EAGLE CREEK
0.3N 6.5E OF NATOMA, Osborne, KS
Built 1935 Load: 2.3 t ADT: 50
S. 90th AVE.
FairOver: TRIB. SOUTH FORK SOLOMON
0.1S 2.0E OF OSBORNE, Osborne, KS
Built 1964 Load: 3.7 t ADT: 50
W. 190th DR.
FairOver: TWIN CREEK
10.0S 0.5E OF OSBORNE, Osborne, KS
Built 1965 Load: 4.2 t ADT: 40
W. 70th DR.
FairOver: SOUTH FORK SOLOMON RIVER
0.1W OF ALTON, Osborne, KS
Built 1920 Load: 5.0 t ADT: 10
S. 50th AVE.
FairOver: CENTER TWIN CREEK
5.0S 6.0E OF OSBORNE, Osborne, KS
Built 1920 Load: 5.4 t ADT: 15
S. 120th AVE.
FairOver: TWIN CREEK
0.5N 5.0E OF COVERT, Osborne, KS
Built 1945 Load: 6.4 t ADT: 50
110th Road
FairOver: KILL CREEK
3.2S 0.2W OF BLOOMINGTON, Osborne, KS
Built 1915 Load: 6.5 t ADT: 5
W. 20th DR.
FairOver: LAWRENCE CREEK
6.0N 2.2W OF BLOOMINGTON, Osborne, KS
Built 1920 Load: 8.2 t ADT: 5
W. 160th DR.
FairOver: TWIN CREEK
7.0S 3.2E OF OSBORNE, Osborne, KS
Built 1967 Load: 9.0 t ADT: 20
Bloomington CmtyRd
FairOver: Osborne Canal
6.6 mi. NW of Osborne KS, Osborne, KS
Built 1960 Load: 9.1 t ADT: 5
W. 200th DR.
FairOver: TWIN CREEK
11.0S 1.4W OF OSBORNE, Osborne, KS
Built 1968 Load: 9.2 t ADT: 50
S. 80th AVE.
FairOver: TWIN CREEK
7.9S 3.0E OF OSBORNE, Osborne, KS
Built 1910 Load: 9.8 t ADT: 20
S 285th AVE_RS 632
FairOver: OSBORNE CANAL
0.2N 3.5W OF ALTON, Osborne, KS
Built 1955 Load: 10.3 t ADT: 15
S. 140th AVE.
FairOver: WOLF CREEK
20.5S 3.0W OF OSBORNE, Osborne, KS
Built 1977 Load: 10.4 t ADT: 15
W. 65th DR.
FairOver: TRIB SOUTH FORK SOLOMON
0.7E OF ALTON, Osborne, KS
Built 1930 Load: 10.8 t ADT: 100
W. 190th DR.
FairOver: TRIBUTARY TO TWIN CREEK
1.0N 8.0E OF COVERT, Osborne, KS
Built 1950 Load: 11.2 t ADT: 30
W. 130th DR.
FairOver: EAST TWIN CREEK
4.0S 7.7E OF OSBORNE, Osborne, KS
Built 2002 Load: 12.7 t ADT: 20
W. 130th DR.
FairOver: EAST TWIN CREEK
4.0S 7.1E OF OSBORNE, Osborne, KS
Built 1953 Load: 12.8 t ADT: 20
S. 20th AVE.
FairOver: SOUTH FORK SOLOMON RIVER
0.3S 9.0E OF OSBORNE, Osborne, KS
Built 1999 Load: 13.0 t ADT: 15
260th Ave (RS 515)
FairOver: TRIB. TO MEDICINE CREEK
13.0N 2.5E OF NATOMA, Osborne, KS
Built 1979 Load: 13.1 t ADT: 50
W 100th DR_RS 864
FairOver: KILL CREEK
2.2S 0.2E OF BLOOMINGTON, Osborne, KS
Built 1954 Load: 13.2 t ADT: 90
W 100th DR_RS 864
FairOver: COVERT CREEK
1.0S 1.0W OF OSBORNE, Osborne, KS
Built 1954 Load: 13.2 t ADT: 225
S. 300th AVE.
FairOver: TRIB TO PARADISE CREEK
0.8S 1.2W OF NATOMA, Osborne, KS
Built 1964 Load: 13.2 t ADT: 40
W. 65th DR.
FairOver: TRIB SOUTH FORK SOLOMON
0.3N 1.2W OF ALTON, Osborne, KS
Built 1930 Load: 13.2 t ADT: 10
W. 20th DR.
FairOver: TRIB NORTH FORK SOLOMON
2.0N 1.1W OF DOWNS, Osborne, KS
Built 1990 Load: 13.4 t ADT: 15
W. 20th DR.
FairOver: TRIB NORTH FORK SOLOMON
2.0N 2.1W OF DOWNS, Osborne, KS
Built 1968 Load: 13.5 t ADT: 20
W. 110th DR.
FairOver: TRIB. S.FORK SOLOMON RVR
2S 9.5E OF OSBORNE, Osborne, KS
Built 1998 Load: 13.9 t ADT: 20
MAIN ST. (RS 515)
FairOver: PARADISE CREEK
IN NATOMA, Osborne, KS
Built 1955 Load: 14.9 t ADT: 95
S. 265th AVE
FairOver: OSBORNE CANAL
1.5W OF ALTON, Osborne, KS
Built 1950 Load: 15.3 t ADT: 20
US281 HWY
FairOver: NORTH FORK SOLOMON RIVER
3.12MI N NJCT U24, Osborne, KS
Built 1947 Load: 15.4 t ADT: 1,170
S 20th AVE_RS 866
FairOver: CARR CREEK
11.2S 9.0E OF OSBORNE, Osborne, KS
Built 1968 Load: 15.9 t ADT: 115
W 150th DR_RS 153
FairOver: COVERT CREEK
6.0S 1.4W OF OSBORNE, Osborne, KS
Built 1957 Load: 16.1 t ADT: 90
K18 HWY
FairOver: PARADISE CREEK DRAINAGE
1.03MI E ROOKS CO LINE, Osborne, KS
Built 1969 Load: 16.3 t ADT: 305
US24 HWY
FairOver: KYLE RAILROAD
1.44MI E JT K181, Osborne, KS
Built 1968 Load: 16.3 t ADT: 1,850
S. 60th AVE.
FairOver: TRIB NORTH FORK SOLOMON
0.4S 3.0W OF DOWNS, Osborne, KS
Built 1966 Load: 16.5 t ADT: 35
W. 80th DR.
FairOver: MEDICINE CREEK
1.0S 5.7E OF ALTON, Osborne, KS
Built 1930 Load: 17.2 t ADT: 10
W. 105th DR.
FairOver: TWIN CREEK
0.4W OF CORINTH, Osborne, KS
Built 1972 Load: 17.2 t ADT: 45
W 1st DR_RS 867
FairOver: TWELVE MILE CREEK
4.0N 3.7W OF DOWNS, Osborne, KS
Built 1963 Load: 17.6 t ADT: 100
S. 20th AVE.
FairOver: TRIB. NORTH FORK SOLOMON
0.6N 1.0E OF DOWNS, Osborne, KS
Built 1968 Load: 17.8 t ADT: 15
US24 HWY
FairOver: S F SOLOMON R DRAIN
12.18 MI E ROOKS CO LINE, Osborne, KS
Built 1962 Load: 18.1 t ADT: 970
US24 HWY
FairOver: S F SOLOMON R DRAIN
03.98 MI W SJCT U281, Osborne, KS
Built 1962 Load: 18.1 t ADT: 970
W 140th DR_RS 864
FairOver: MEDICINE CREEK
7.0S 1.0W OF ALTON, Osborne, KS
Built 1965 Load: 18.2 t ADT: 50
S 245th AVE_RS 515
FairOver: CROOKED CREEK
1.5N OF ALTON, Osborne, KS
Built 1964 Load: 18.5 t ADT: 130
W. 130th DR.
FairOver: TRIBUTARY TO TWIN CREEK
4.0S 4.2E OF OSBORNE, Osborne, KS
Built 2002 Load: 18.7 t ADT: 10
S. 190th AVE.
FairOver: KILL CREEK
7.2N 1.7W OF COVERT, Osborne, KS
Built 1936 Load: 19.0 t ADT: 10
W 90th DR (RS 517)
FairOver: TRIB SOUTH FORK SOLOMON
5.0E OF OSBORNE, Osborne, KS
Built 1958 Load: 19.1 t ADT: 425
S 170th AVE_RS 865
FairOver: COVERT CREEK
0.2S OF COVERT, Osborne, KS
Built 1967 Load: 19.2 t ADT: 35
S. 120th AVE.
FairOver: COON CREEK
18.0S 1.0W OF OSBORNE, Osborne, KS
Built 1951 Load: 19.3 t ADT: 25
S. 70th AVE.
FairOver: TRIB. TO FOURMILE CREEK
17.5S 4.0E OF OSBORNE, Osborne, KS
Built 1949 Load: 19.6 t ADT: 5
S. 130th AVE.
FairOver: TRIB TO COVERT CREEK
4.1S 2.0W OF OSBORNE, Osborne, KS
Built 1969 Load: 19.8 t ADT: 60
Read our methodology - how this data is sourced, computed, and verified.
Related
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.