Bridge conditions in Scott County, Iowa
291 inventoried bridges · 29 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
Scott County has 29 bridges rated poor out of 291 inventoried, a 10.0% share that puts it well above the national rate of about 7%.
- 29 of the 291 bridges in Scott County, Iowa, are rated in poor condition (10.0%) in the 2025 National Bridge Inventory, as of .
- 104 bridges (35.7%) are rated good and 158 (54.3%) fair.
- The median Scott County bridge was built in 1981.
- The busiest poor-rated bridge is US 67 over Miss Rvr RR & Ia 461 (built 1940), carrying about 26,500 vehicles a day.
Good 35.7% · Fair 54.3% · Poor 10.0% of 291 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 67 over Miss Rvr RR & Ia 461 | 1940 | 26,500 | Poor |
| Eastern Ave over Duck Creek | 1900 | 15,300 | Poor |
| Eastern Ave over Goose Creek | 1978 | 10,200 | Poor |
| Eastern Ave over Goose Creek | 1978 | 6,376 | Poor |
| 18TH St over Duck Creek | 1962 | 4,210 | Poor |
| S Clark St over Blackhawk Creek | 1950 | 4,004 | Poor |
| Co Rd Y-68 over Wapsi River Overflow | 1922 | 2,310 | Poor |
| Wells Ferry Rd over Spencer Creek | 1972 | 1,700 | Poor |
| 60TH Ave over Mud Creek | 1940 | 1,280 | Poor |
| Big Rock Rd over Creek | 1923 | 1,060 | Poor |
| FM over Walnut Creek | 1949 | 1,060 | Poor |
| Wells Ferry Rd over Creek | 1964 | 1,010 | Poor |
| 240TH Ave over Creek | 1962 | 870 | Poor |
| 115TH Ave over Wapsipinicon River | 1965 | 750 | Poor |
| E 13TH St over over I.c.e. RR | 1900 | 358 | Poor |
| 296TH St over Creek | 1974 | 200 | Poor |
| 305TH St over Stream | 1976 | 143 | Poor |
| 130TH Ave over Creek | 1972 | 122 | Poor |
| W 46TH St over Cardinal Creek | 1900 | 120 | Poor |
| Utah Ave over Duck Creek | 1900 | 120 | Poor |
| Wisconsin Ave over Duck Creek | 1960 | 120 | Poor |
| 85TH Ave over Creek | 1974 | 102 | Poor |
| 10TH Ave over Creek | 1951 | 90 | Poor |
| 35TH Ave over Creek | 1965 | 51 | Poor |
| 40TH Ave over Creek | 1972 | 50 | Poor |
| 265TH St over Creek | 1996 | 35 | Poor |
| 240TH St over Creek | 1965 | 31 | Poor |
| 140TH Ave over Creek | 1967 | 26 | Poor |
| 35TH Ave over Creek | 1965 | 25 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-80 over Mississippi River & RR | 1967 | 38,100 | Fair |
| I 74 WB over Mississippi River | 2020 | 37,650 | Good |
| WB US 6 over Goose Creek | 2011 | 35,400 | Good |
| I-80 over Drainage Ditch | 1963 | 34,600 | Fair |
| I-80 over Stream | 1963 | 34,600 | Fair |
| I-80 over Drainage Ditch | 1963 | 31,600 | Fair |
| I-80 over Crow Creek | 1963 | 31,400 | Fair |
| US 61 over Crow Creek | 1981 | 29,300 | Good |
| I-74 (WB) over Duck Creek and Bike Path | 1971 | 28,450 | Fair |
| I-74 (EB) over Duck Creek and Bike Path | 1971 | 28,450 | Fair |
Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.
All of Iowa: Iowa 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.