Total bridges
305
Public highway bridges in Coffey County
County profile · official public datasets
Coffey County, KS
305 public highway bridges tracked in the FHWA National Bridge Inventory: 75.4% rated Good, 23.3% Fair, 1.3% Poor.
- 305
- Public bridges
- 75.4%
- Good condition
- 1.3%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Coffey County pairs a top-quartile lowest Poor-condition share among rated counties in the state with a newer average build year than the state inventory.
- Top 20%
- lowest Poor share in state
- 1.3%
- Poor-condition share
- 305
- public highway bridges
- 1984
- 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.
Coffey County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Coffey County ranks #21 of 104 Kansas counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 1.3%). Coffey County, Kansas contains 305 public highway bridges. Roughly 75.4% are rated “Good,” 23.3% “Fair,” and 1.3% “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.
Good condition
75.4%
230 of 305 rated 7-9
Fair condition
23.3%
71 of 305 rated 5-6
Poor condition
1.3%
4 of 305 rated 4 or below
In-state Poor-share rank
#21 of 104
Among Kansas counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 305 NBI-tracked bridges by lowest applicable component rating.
Good 75.4% (230)
Fair 23.3% (71)
Poor 1.3% (4)
Coffey County's Poor-condition bridges carry 75 vehicle crossings a day
That is 0% of the county's reported daily bridge traffic on 1.3% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 19 crossings a day against 553 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 305 of 305 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
27.9% of Coffey County's bridges have passed the 50-year mark
85 of the 305 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 75.4% 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 40% of the county's Poor-condition bridge traffic
LYNX RD. 2 over FROG CREEK, built 1974, carries 30 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 4-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 75 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When Coffey County's bridges were built
305 bridges with a recorded construction year, grouped by decade
- 1920s 4
1920–1929
4 bridges
- 1930s 12
1930–1939
12 bridges
- 1940s 6
1940–1949
6 bridges
- 1950s 11
1950–1959
11 bridges
- 1960s 23
1960–1969
23 bridges
- 1970s
1970–1979
40 bridges
- 1980s
1980–1989
56 bridges
- 1990s
1990–1999
89 bridges
- 2000s
2000–2009
53 bridges
- 2010s 9
2010–2019
9 bridges
- 2020s 2
2020–2029
2 bridges
What this shows Construction peaked in the 1990s, when 89 of the county's bridges still in the inventory were built, which is 29.2% of those with a recorded year. That cohort is now 25 to 34 years old in the 2024 inventory. Its average build year is 1984, 12 years newer than the Kansas average of 1972.
How Coffey County compares with Kansas's closest counties by inventory size
The 5 Kansas counties nearest Coffey County in number of bridges, with their condition splits. Its 1.3% Poor share is the 1st-lowest of these 6. Its average build year of 1984 against a peer-group mean of 1970 is 14 years newer.
Showing the 5 closest of 103 Kansas counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Cloud County | 314 | 52.5% | 40.8% | 6.7% | 1961 |
| Jewell County | 307 | 57.3% | 35.5% | 7.2% | 1972 |
| Coffey County (this page) | 305 | 75.4% | 23.3% | 1.3% | 1984 |
| Osage County | 304 | 57.9% | 35.9% | 6.3% | 1972 |
| Pottawatomie County | 303 | 48.2% | 44.6% | 7.3% | 1975 |
| Crawford County | 297 | 52.9% | 39.7% | 7.4% | 1969 |
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 Coffey 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 Coffey County, both outside Kansas so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside KS (305 bridges here).
- Ashtabula County, OH · 305 bridges
- La Paz County, AZ · 306 bridges
- Adair County, IA · 306 bridges
- Greene County, PA · 306 bridges
Similar average build year
Nearest mean year-built outside KS (1984 here).
- Hennepin County, MN · avg 1984 · 936 bridges
- Duval County, FL · avg 1984 · 831 bridges
- El Paso County, CO · avg 1984 · 686 bridges
- Bell County, TX · avg 1984 · 660 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
Fair-condition bridges (71)
16TH. RD. #71
FairOver: TRIB. TO LONG CREEK
5.1E OF NEW STRAWN, Coffey, KS
Built 1978 Load: 32.7 t ADT: 1,700
OLD HWY. 50 031
FairOver: TRIB. TO ROCK CREEK
1.2N 3.1E OF WAVERLY, Coffey, KS
Built 1954 Load: 32.7 t ADT: 240
11TH. RD. 100
FairOver: ROCK CREEK
2.3W OF BURLINGTON, Coffey, KS
Built 1935 Load: 32.7 t ADT: 50
25TH. RD. 21
FairOver: TRIB. TO FROG CREEK
1.0S 3.8E OF LEBO, Coffey, KS
Built 1965 Load: 32.7 t ADT: 20
13TH. RD. 241
FairOver: TRIB. TO NEOSHO RIVER
1.4N 0.2W OF BURLINGTON, Coffey, KS
Built 1971 Load: 32.7 t ADT: 80
PLANTER RD. 314
FairOver: TRIB. TO LONG CREEK
3.5W 1.7S OF WAVERLY, Coffey, KS
Built 1994 Load: 32.7 t ADT: 20
UNDERWOOD RD. 14
FairOver: TRIB. TO ROCK CREEK
1.0E 0.7S OF WAVERLY, Coffey, KS
Built 1930 Load: 32.7 t ADT: 15
WAYSIDE RD. 259
FairOver: TRIB. TO ROCK CREEK
2.2N 3.0E OF WAVERLY, Coffey, KS
Built 1920 Load: 32.7 t ADT: 20
XERIC RD. 12
FairOver: TRIB. TO KENOMA CREEK
4.0E 0.7S OF WAVERLY, Coffey, KS
Built 1953 Load: 32.7 t ADT: 15
6TH. STREET
FairOver: ROCK CREEK
IN BURLINGTON, Coffey, KS
Built 1960 Load: 32.7 t ADT: 300
5TH. STREET
FairOver: TRIB. TO ROCK CREEK
East of Christie St., Coffey, KS
Built 1965 Load: 32.7 t ADT: 50
US75 HWY
FairOver: NEOSHO RIVER DRAINAGE
1.14 MI N NEOSHO ST, Coffey, KS
Built 1935 Load: 33.6 t ADT: 6,170
CONTOUR RD. 187
FairOver: TRIB. TO DINNER CREEK
2.0W 2.0S OF GRIDLEY, Coffey, KS
Built 1986 Load: 35.4 t ADT: 25
15TH. RD. 79
FairOver: LONG CREEK
4.5E 3.0N OF BURLINGTON, Coffey, KS
Built 1980 Load: 35.5 t ADT: 50
1ST. RD. 161
FairOver: TRIB. TO LOSS CREEK
3.0S 2.9E OF LEROY, Coffey, KS
Built 1988 Load: 36.2 t ADT: 15
17TH. RD. 64
FairOver: SCHOOL CREEK
2.2E OF SHARPE, Coffey, KS
Built 1979 Load: 39.7 t ADT: 45
OLD HWY. 50 028
FairOver: TRIB. TO N. LONG CREEK
0.5N 4.9W OF WAVERLY, Coffey, KS
Built 2004 Load: 44.1 t ADT: 580
KENNEBEC STREET
FairOver: ROCK CREEK
IN BURLINGTON, Coffey, KS
Built 1950 Load: 46.4 t ADT: 200
12TH LN. C9701
FairOver: TRIB TO NEOSHO RIVER
1.0N 1.25E OF BURLINGTON, Coffey, KS
Built 1997 Load: 52.1 t ADT: 10
KENNEBEC STREET
FairOver: ROCK CREEK
IN BURLINGTON, Coffey, KS
Built 1950 Load: 52.5 t ADT: 200
21ST. RD. 63
FairOver: TRIB. WEST HICKORY CK.
4.5N 2.1W OF NEW STRAWN, Coffey, KS
Built 1986 Load: 61.2 t ADT: 50
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.