Bridge conditions in Linn County, Missouri
313 inventoried bridges · 56 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
Linn County has 56 bridges rated poor out of 313 inventoried, a 17.9% share that puts it well above the national rate of about 7%.
- 56 of the 313 bridges in Linn County, Missouri, are rated in poor condition (17.9%) in the 2025 National Bridge Inventory, as of .
- 119 bridges (38.0%) are rated good and 138 (44.1%) fair.
- The median Linn County bridge was built in 1990.
- The busiest poor-rated bridge is US 36 E over Sights Br (built 1924), carrying about 8,773 vehicles a day.
Good 38.0% · Fair 44.1% · Poor 17.9% of 313 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 Sights Br | 1924 | 8,773 | Poor |
| US 36 W over Muddy CR | 1964 | 6,227 | Poor |
| US 36 W over Big Turkey CR | 1961 | 5,215 | Poor |
| US 36 W over Big Turkey CR Ovrf | 1961 | 5,215 | Poor |
| Rt U S over Long Br | 1955 | 298 | Poor |
| Rt C E over Long Br | 1930 | 289 | Poor |
| Mo 11 S over Badger CR | 1934 | 258 | Poor |
| Mo 139 S over Parson CR | 1933 | 203 | Poor |
| Laclede Ave over Elk CR | 1996 | 200 | Poor |
| Pratt St over Pratt CR | 1960 | 100 | Poor |
| Rt B E over Parsons CR | 1966 | 97 | Poor |
| Rt O E over Yellow CR | 1961 | 68 | Poor |
| Morton Rd over Br E of Yellow CR | 1992 | 50 | Poor |
| Aloe Rd over Parson CR | 1996 | 50 | Poor |
| Grover Rd over Turkey CR | 1950 | 40 | Poor |
| Jasmine Rd over Br of E Yellow CR | 1945 | 35 | Poor |
| Kayak Rd over Br of Yellow CR | 1999 | 35 | Poor |
| Morton Rd over Van Dorsen CR | 1930 | 35 | Poor |
| Kite Rd over E Yellow CR | 1997 | 30 | Poor |
| Kite Rd over Winnegan CR | 1930 | 30 | Poor |
| Grant Rd over Lit Turkey CR | 1990 | 30 | Poor |
| Idaho Rd over Wyellow CR | 1910 | 30 | Poor |
| Daisy Rd over Creek | 1994 | 25 | Poor |
| Field Dr over Unnamed Str | 1991 | 25 | Poor |
| Fair Dr over Lowes Br | 1994 | 25 | Poor |
| June Dr over Branch of Yellow C | 1988 | 25 | Poor |
| Jodine Rd over W Yellow CR | 1930 | 25 | Poor |
| Ginger Rd over Turkey CR | 1995 | 25 | Poor |
| Lotus Rd over Br of Sights Br | 1985 | 25 | Poor |
| Mesa Rd over Sights Br | 1940 | 25 | Poor |
| Doe Rd over Linn Br | 1940 | 20 | Poor |
| Argo Rd over Branch | 1950 | 20 | Poor |
| Ivan Rd over Bear CR | 1988 | 20 | Poor |
| Marsh Dr over Br of Yellow CR | 1992 | 20 | Poor |
| Hacker Rd over Long Br | 1990 | 20 | Poor |
| Ithaca Rd over Unnamed Str | 1930 | 20 | Poor |
| Jaffa Rd over Bear CR | 1994 | 20 | Poor |
| Jaffa Rd over Bear CR | 1994 | 20 | Poor |
| London Rd over Yellow CR | 1904 | 20 | Poor |
| Brook Rd over Br of Parsons CR | 1955 | 15 | Poor |
| Ladue Rd over E Yellow CR | 1993 | 15 | Poor |
| Aloe Rd over Br of Coon CR | 1989 | 15 | Poor |
| Kemper Dr over Br of E Yellow CR | 1940 | 15 | Poor |
| Mill Dr over Sights Br | 1935 | 15 | Poor |
| Hyde Rd over Long Br | 1996 | 15 | Poor |
| Gage Rd over Long Br | 1940 | 10 | Poor |
| Jewel Dr over Unnamed Br | 1930 | 10 | Poor |
| Malta Dr over Long Br | 1981 | 10 | Poor |
| Indy Rd over Br of Yellow CR | 1994 | 10 | Poor |
| Fern Dr over Lowes Br | 1950 | 5 | Poor |
| Gem Rd over Lowes Br | 1950 | 5 | Poor |
| Haven Rd over Long Br | 1998 | 5 | Poor |
| Folk Rd over Muddy CR | 1930 | 5 | Poor |
| Bartok Rd over Lewis CR | 1940 | 5 | Poor |
| Java Rd over Bear CR | 1940 | 5 | Poor |
| County Rd 536 over Elk CR | 1920 | 5 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 36 E over S Br of Muddy CR | 1961 | 13,161 | Fair |
| US 36 E over Lit Turkey CR | 1961 | 12,912 | Fair |
| US 36 E over Elk CR | 1955 | 11,581 | Fair |
| US 36 E over Van Dorsen CR | 1924 | 9,524 | Fair |
| US 36 E over Mussel Fk | 1951 | 9,524 | Fair |
| US 36 E over E Yellow CR | 1955 | 9,427 | Fair |
| US 36 E over Sights Br | 1924 | 8,773 | Poor |
| US 36 W over Lit Parsons CR | 1967 | 6,529 | Fair |
| US 36 W over Big Parsons CR | 1967 | 6,409 | Fair |
| US 36 E over Big Parsons CR | 1974 | 6,389 | 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.