Bridge conditions in Buchanan County, Missouri
246 inventoried bridges · 19 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
Buchanan County tracks close to typical: 19 of its 246 inventoried bridges (7.7%) are rated poor, against a national rate of about 7%.
- 19 of the 246 bridges in Buchanan County, Missouri, are rated in poor condition (7.7%) in the 2025 National Bridge Inventory, as of .
- 78 bridges (31.7%) are rated good and 149 (60.6%) fair.
- The median Buchanan County bridge was built in 1983.
- The busiest poor-rated bridge is US 36 E over Lp 29 (built 1961), carrying about 20,009 vehicles a day.
Good 31.7% · Fair 60.6% · Poor 7.7% of 246 bridges
Bridges rated poor
Every bridge in the county with a poor rating, busiest first. Poor means a major component is rated 4 or lower on FHWA's 0-9 scale; it is a repair flag, not a closure notice.
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 36 E over Lp 29 | 1961 | 20,009 | Poor |
| US 36 E over Is 229 Cst 6TH St Is | 1951 | 16,400 | Poor |
| Rt Ac S over US 36 | 1973 | 10,927 | Poor |
| Is 229 S over Cst Mcarthur Dr Cst Mon | 1976 | 10,163 | Poor |
| Is 229 N over Is 229 Cst 4TH St Cs | 1976 | 8,403 | Poor |
| Gene Field Rd E over Is 29 | 1962 | 7,186 | Poor |
| Is 229 S over US 59 Cst Atchison St | 1979 | 2,956 | Poor |
| Rt Dd E over E Fk of Bee CR | 1970 | 1,716 | Poor |
| Rp Charles St to I over BNSF RR | 1979 | 1,587 | Poor |
| Rt Mm S over Rock CR | 1948 | 420 | Poor |
| Rt Dd E over Jenkins CR | 1971 | 91 | Poor |
| SE Ajax Rd over Whitehead CR | 1991 | 35 | Poor |
| SW Bluff Rd over Br of Horseshoe Lk | 1916 | 35 | Poor |
| SW 66TH Rd over Sugar CR | 1910 | 35 | Poor |
| NE 110TH Rd over Br of Muddy CR | 2005 | 35 | Poor |
| SW Henmen Rd over Br of Gay Br | 1989 | 25 | Poor |
| Hurlingen Rd over Muddy CR | 1990 | 20 | Poor |
| SW 60TH Rd over Br of Gay Br | 1982 | 15 | Poor |
| SW 26TH Rd over Br of Contrary CR | 1990 | 15 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Is 29 S over Bee CR Br | 1958 | 35,463 | Fair |
| 6TH St-us 59 over BNSF RR | 1983 | 23,450 | Fair |
| Is 29 S over US 36 | 1958 | 21,784 | Fair |
| Is 29 N over US 36 | 1958 | 20,343 | Fair |
| Is 29 N over Cst Easton Rd Abandoned | 1958 | 20,343 | Fair |
| US 36 E over US 169 | 1961 | 20,169 | Fair |
| Is 29 S over Cst Easton Rd Abandoned | 1958 | 20,153 | Fair |
| Is 29 S over US 169 | 1958 | 20,153 | Fair |
| US 36 E over Lp 29 | 1961 | 20,009 | Poor |
| Is 29 N over US 169 | 1958 | 19,666 | Fair |
Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.
All of Missouri: Missouri bridge conditions by county · every download on the data page.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.