Bridge conditions in Lee County, Iowa
214 inventoried bridges · 30 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
About one in 7 bridges in Lee County is rated in poor condition: 30 of 214 on the federal inventory, one of the higher shares in Iowa.
- 30 of the 214 bridges in Lee County, Iowa, are rated in poor condition (14.0%) in the 2025 National Bridge Inventory, as of .
- 95 bridges (44.4%) are rated good and 89 (41.6%) fair.
- The median Lee County bridge was built in 1985.
- The busiest poor-rated bridge is Ave L over Dry Creek (built 1915), carrying about 10,953 vehicles a day.
Good 44.4% · Fair 41.6% · Poor 14.0% of 214 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.
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Ave L over Dry Creek | 1915 | 10,953 | Poor |
| US 136 over Mississippi River RR Rd | 1985 | 10,500 | Fair |
| Ave H over French Creek | 1983 | 10,382 | Fair |
| Ia 27 over Stream | 1947 | 7,200 | Fair |
| Ia 27 over Sugar Creek | 2001 | 7,200 | Fair |
| Ia 2 over US 61 | 2011 | 6,200 | Fair |
| US 61 & 136 over Des Moines Rvr RR & Rd | 1994 | 5,100 | Fair |
| US 218 SB over West Br Sugar Creek | 2003 | 4,650 | Good |
| US 218 SB over Sugar Creek | 2003 | 4,650 | Good |
| NB US 61 over Lost Creek | 1966 | 4,550 | Fair |
Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.
Every bridge in Lee County → - all 214, busiest first, each with its own condition record.
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.