Total bridges
191
Public highway bridges in Atchison County
County profile · official public datasets
Atchison County, MO
191 public highway bridges tracked in the FHWA National Bridge Inventory: 58.1% rated Good, 32.5% Fair, 9.4% Poor.
- 191
- Public bridges
- 58.1%
- Good condition
- 9.4%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Atchison County pairs a higher-than-median Poor-condition share among rated counties in the state with a newer average build year than the state inventory.
- 63rd
- of 115 on Poor share
- 9.4%
- Poor-condition share
- 191
- public highway bridges
- 1985
- 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.
Atchison County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Atchison County ranks #63 of 115 Missouri counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 9.4%). Atchison County, Missouri contains 191 public highway bridges. Roughly 58.1% are rated “Good,” 32.5% “Fair,” and 9.4% “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
58.1%
111 of 191 rated 7-9
Fair condition
32.5%
62 of 191 rated 5-6
Poor condition
9.4%
18 of 191 rated 4 or below
In-state Poor-share rank
#63 of 115
Among Missouri counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 191 NBI-tracked bridges by lowest applicable component rating.
Good 58.1% (111)
Fair 32.5% (62)
Poor 9.4% (18)
Atchison County's Poor-condition bridges carry 10,512 vehicle crossings a day
That is 4.9% of the county's reported daily bridge traffic on 9.4% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 584 crossings a day against 367 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 191 of 191 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
35.1% of Atchison County's bridges have passed the 50-year mark
67 of the 191 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 58.1% 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 27.5% of the county's Poor-condition bridge traffic
US 136 E over ROCK CR, built 1970, carries 2,887 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 10,512 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When Atchison County's bridges were built
191 bridges with a recorded construction year, grouped by decade
- 1910s 1
1910–1919
1 bridges
- 1920s 8
1920–1929
8 bridges
- 1930s 11
1930–1939
11 bridges
- 1940s 1
1940–1949
1 bridges
- 1950s 6
1950–1959
6 bridges
- 1960s 17
1960–1969
17 bridges
- 1970s
1970–1979
24 bridges
- 1980s 11
1980–1989
11 bridges
- 1990s
1990–1999
40 bridges
- 2000s
2000–2009
45 bridges
- 2010s
2010–2019
24 bridges
- 2020s 3
2020–2029
3 bridges
What this shows Construction peaked in the 2000s, when 45 of the county's bridges still in the inventory were built, which is 23.6% of those with a recorded year. That cohort is now 15 to 24 years old in the 2024 inventory. Its average build year is 1985, 6 years newer than the Missouri average of 1979.
How Atchison County compares with Missouri's closest counties by inventory size
The 5 Missouri counties nearest Atchison County in number of bridges, with their condition splits. Its 9.4% Poor share is the 5th-lowest of these 6. Its average build year of 1985 against a peer-group mean of 1982 is in line with the group.
Showing the 5 closest of 114 Missouri counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Cooper County | 193 | 49.7% | 46.1% | 4.1% | 1985 |
| Atchison County (this page) | 191 | 58.1% | 32.5% | 9.4% | 1985 |
| Howell County | 189 | 34.4% | 63.5% | 2.1% | 1966 |
| Lincoln County | 189 | 40.2% | 56.1% | 3.7% | 1987 |
| Webster County | 189 | 45.5% | 46% | 8.5% | 1981 |
| Grundy County | 187 | 54% | 34.8% | 11.2% | 1992 |
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 Atchison 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 Atchison County, both outside Missouri so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside MO (191 bridges here).
- Jay County, IN · 191 bridges
- Ripley County, IN · 191 bridges
- Pawnee County, NE · 191 bridges
- Webster County, NE · 191 bridges
Similar average build year
Nearest mean year-built outside MO (1985 here).
- Hillsborough County, FL · avg 1985 · 840 bridges
- Lancaster County, NE · avg 1985 · 661 bridges
- Nueces County, TX · avg 1985 · 528 bridges
- Grayson County, TX · avg 1985 · 513 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
Fair-condition bridges (62)
DAYTON AVE
FairOver: HIGH CR
S 24 T 66 N R 42 W, Atchison, MO
Built 1930 Load: 10.8 t ADT: 15
RT N S
FairOver: LIT TARKIO CR
S 26 T 65 N R 39 W, Atchison, MO
Built 1962 Load: 11.7 t ADT: 180
280 ST E
FairOver: E ROADWAY DTCH
S 34 T 64 N R 41 W, Atchison, MO
Built 1936 Load: 14.4 t ADT: 62
310 ST
FairOver: E FK LIT TARKIO CR
S 9 T 63 N R 39 W, Atchison, MO
Built 1985 Load: 16.2 t ADT: 25
150 ST
FairOver: ROCK CR
S 20 T 66 N R 40 W, Atchison, MO
Built 1994 Load: 18.0 t ADT: 35
RT A E
FairOver: IS 29
S 1 T 65 N R 41 W, Atchison, MO
Built 1971 Load: 18.9 t ADT: 600
300 ST
FairOver: MINNESOTA VALLEY C
S 4 T 63 N R 38 W, Atchison, MO
Built 2001 Load: 18.9 t ADT: 10
RT EE S
FairOver: HICKORY BR
S 30 T 64 N R 38 W, Atchison, MO
Built 1962 Load: 18.9 t ADT: 54
RT Z E
FairOver: IS 29
S 2 T 63 N R 41 W, Atchison, MO
Built 1973 Load: 19.8 t ADT: 60
RT E E
FairOver: OLD CHNL NISHNABOT
S 13 T 64 N R 41 W, Atchison, MO
Built 1983 Load: 19.8 t ADT: 222
K AVE
FairOver: W HIGH CR
S 36 T 67 N R 41 W, Atchison, MO
Built 1988 Load: 20.7 t ADT: 10
MO 111 S
FairOver: ROCK CR
S 16 T 64 N R 41 W, Atchison, MO
Built 1973 Load: 21.6 t ADT: 226
US 59 S
FairOver: UNNAMED CR
S 36 T 66 N R 40 W, Atchison, MO
Built 1926 Load: 21.6 t ADT: 1,003
X AVE
FairOver: BR LIT TARKIO CR
S 24 T 65 N R 39 W, Atchison, MO
Built 2007 Load: 21.6 t ADT: 35
290 ST
FairOver: TRIB E FK LIT TARK
S 31 T 64 N R 38 W, Atchison, MO
Built 2007 Load: 21.6 t ADT: 5
FIREFLY AVE
FairOver: HIGH CR
S 20 T 66 N R 41 W, Atchison, MO
Built 1930 Load: 22.5 t ADT: 20
X AVE
FairOver: LIT TARKIO CR
S 12 T 65 N R 38 W, Atchison, MO
Built 1990 Load: 22.5 t ADT: 10
T AVE
FairOver: TRIB LIT TARKIO CR
S 8 T 64 N R 39 W, Atchison, MO
Built 1996 Load: 22.5 t ADT: 5
300 ST
FairOver: TARKIO RVR
S 4 T 63 N R 40 W, Atchison, MO
Built 1987 Load: 22.5 t ADT: 70
110 ST
FairOver: W HIGH CR
S 36 T 67 N R 41 W, Atchison, MO
Built 1997 Load: 23.4 t ADT: 10
RED STAR RD E
FairOver: IS 29
S 19 T 65 N R 41 W, Atchison, MO
Built 1969 Load: 23.4 t ADT: 62
160 ST
FairOver: DEADMANS HOLLOW
S 27 T 66 N R 39 W, Atchison, MO
Built 1997 Load: 24.3 t ADT: 30
RT MM S
FairOver: WOLF CR
S 31 T 64 N R 39 W, Atchison, MO
Built 1957 Load: 24.3 t ADT: 100
US 136 E
FairOver: DRAIN DTCH #3
S 36 T 65 N R 42 W, Atchison, MO
Built 1965 Load: 25.2 t ADT: 2,276
RT C E
FairOver: W TARKIO CR
S 13 T 66 N R 40 W, Atchison, MO
Built 1974 Load: 26.1 t ADT: 432
US 275 S
FairOver: MCELROY BR
S 16 T 66 N R 41 W, Atchison, MO
Built 1973 Load: 27.0 t ADT: 224
US 136 E
FairOver: BR OF LIT TARKIO C
S 18 T 65 N R 38 W, Atchison, MO
Built 1931 Load: 27.0 t ADT: 696
RT TT E
FairOver: LONG BR
S 6 T 64 N R 39 W, Atchison, MO
Built 1960 Load: 27.0 t ADT: 102
COUNTY RD 315
FairOver: BR OF SQUAW CR
S 31 T 66 N R 38 W, Atchison, MO
Built 2000 Load: 28.8 t ADT: 20
US 275 S
FairOver: MAPES BR
S 12 T 66 N R 42 W, Atchison, MO
Built 1929 Load: 29.7 t ADT: 294
Y AVE
FairOver: LIT TARKIO CR
S 12 T 65 N R 38 W, Atchison, MO
Built 1990 Load: 30.6 t ADT: 10
IS 29 S
FairOver: HIGH CR
S 24 T 66 N R 42 W, Atchison, MO
Built 1971 Load: 31.5 t ADT: 8,146
IS 29 N
FairOver: HIGH CR
S 24 T 66 N R 42 W, Atchison, MO
Built 1971 Load: 31.5 t ADT: 7,569
180 ST
FairOver: E FK LIT TARKIO CR
S 4 T 65 N R 38 W, Atchison, MO
Built 2009 Load: 31.5 t ADT: 20
MO 46 E
FairOver: LIT TARKIO DRAIN D
S 24 T 64 N R 39 W, Atchison, MO
Built 2011 Load: 31.5 t ADT: 338
MO 46 E
FairOver: BANKS CR
S 21 T 64 N R 39 W, Atchison, MO
Built 1966 Load: 32.4 t ADT: 751
160 ST
FairOver: W TARKIO CR
S 25 T 66 N R 40 W, Atchison, MO
Built 1991 Load: 32.4 t ADT: 20
IS 29 S
FairOver: MILL CR
S 2 T 63 N R 41 W, Atchison, MO
Built 1973 Load: 32.4 t ADT: 8,286
IS 29 N
FairOver: MILL CR
S 2 T 63 N R 41 W, Atchison, MO
Built 1973 Load: 32.4 t ADT: 9,366
300 ST
FairOver: E FK LIT TARKIO CR
S 2 T 63 N R 39 W, Atchison, MO
Built 1990 Load: 32.4 t ADT: 35
RT M S
FairOver: TARKIO CR
S 32 T 67 N R 38 W, Atchison, MO
Built 1938 Load: 32.4 t ADT: 100
RT EE S
FairOver: E FK TARKIO CR
S 1 T 63 N R 38 W, Atchison, MO
Built 1962 Load: 32.4 t ADT: 54
280 ST
FairOver: LIT TARKIO CR
S 30 T 64 N R 39 W, Atchison, MO
Built 1991 Load: 33.3 t ADT: 30
RT C E
FairOver: TARKIO RVR
S 18 T 66 N R 38 W, Atchison, MO
Built 2011 Load: 34.2 t ADT: 328
US 59 N
FairOver: TARKIO RVR
S 3 T 64 N R 40 W, Atchison, MO
Built 2012 Load: 34.2 t ADT: 1,789
IS 29 S
FairOver: ROCK CR
S 16 T 64 N R 41 W, Atchison, MO
Built 1973 Load: 36.0 t ADT: 8,286
MO 46 E
FairOver: E FK HICKORY CR
S 19 T 64 N R 38 W, Atchison, MO
Built 2011 Load: 38.7 t ADT: 513
RT B E
FairOver: ROCK CR
S 8 T 66 N R 40 W, Atchison, MO
Built 2011 Load: 40.5 t ADT: 117
US 275 S
FairOver: KINGS BR
S 35 T 67 N R 42 W, Atchison, MO
Built 1951 Load: 41.4 t ADT: 294
MO 111 S
FairOver: BR OF ROCK CR
S 27 T 65 N R 41 W, Atchison, MO
Built 1970 Load: 43.2 t ADT: 729
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.