Bridge conditions in DeKalb County, Missouri
238 inventoried bridges · 16 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
The federal inventory lists 238 bridges in DeKalb County: 78 rated good, 144 fair, and 16 poor.
- 16 of the 238 bridges in DeKalb County, Missouri, are rated in poor condition (6.7%) in the 2025 National Bridge Inventory, as of .
- 78 bridges (32.8%) are rated good and 144 (60.5%) fair.
- The median DeKalb County bridge was built in 1995.
- The busiest poor-rated bridge is SE Frost Rd over Wheeler CR (built 1995), carrying about 50 vehicles a day.
Good 32.8% · Fair 60.5% · Poor 6.7% of 238 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 |
|---|---|---|---|
| SE Frost Rd over Wheeler CR | 1995 | 50 | Poor |
| Water Street over Br of Lost CR | 1933 | 50 | Poor |
| NW Polk Rd over Trib Third Fk Plat | 1983 | 35 | Poor |
| NW Glenwood Rd over 3RD Fk of Platte R | 1989 | 35 | Poor |
| SE Gridley Rd over Br of Wheeler CR | 1930 | 35 | Poor |
| NE Heimbaugh Rd over Irvins Br | 2002 | 25 | Poor |
| NW Gospel Rd over Crooked CR | 1930 | 20 | Poor |
| SW Ketchem Rd over Third Fk Platte Rv | 1990 | 20 | Poor |
| NW Waldo Rd over Trib to Third Fk | 2001 | 15 | Poor |
| SW Orchard Rd over Br of Lit Third Fk | 2004 | 15 | Poor |
| NW Lakesite Rd over Trib of Lost CR | 1998 | 10 | Poor |
| NE Pleasant Rd over Muddy CR | 2009 | 10 | Poor |
| NW Gospel Rd over Br of Third Fk Pla | 1920 | 5 | Poor |
| NE Santa Rosa Rd over Muddy CR | 1930 | 5 | Poor |
| SE Adams Rd over Br of Lazy Creek | 1930 | 5 | Poor |
| NW Crabill Rd over Lit Third Fk | 1920 | 5 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Is 35 S over Brushy CR | 1964 | 19,244 | Fair |
| US 36 E over Freeman Br | 1962 | 11,148 | Fair |
| US 36 E over Jordon CR | 1962 | 11,148 | Fair |
| US 69 S over US 36 | 1990 | 9,126 | Fair |
| US 36 W over Is 35 | 1963 | 7,793 | Good |
| US 36 E over Is 35 | 1963 | 6,359 | Good |
| US 36 W over Grindstone CR | 1966 | 6,007 | Fair |
| US 36 E over Grindstone CR | 1991 | 5,613 | Fair |
| US 36 W over Maple Grove CR | 1982 | 5,352 | Fair |
| US 36 W over E Fk Castile CR | 1982 | 5,352 | 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.