FM over Devil Creek
Lee County, Iowa · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- FM over Devil Creek in Lee County, Iowa, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1955, making it 70 years old at the 2025 inventory.
- It carries about 80 vehicles a day (traffic count year 2022).
- Its listed owner is the county highway agency.
- It is one of 89 of the 214 inventoried bridges in Lee County rated fair (41.6%); 30 (14.0%) are rated poor.
- Its traffic status in the 2025 inventory is posted for load (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated January 2023, on a 24-month routine inspection cycle.
- It is coded scour critical (NBI item 113 = 3): scour critical: foundations unstable for the assessed or calculated scour.
- A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.
View this bridge on a map → (40.6176, -91.4264)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 5 | 5 | Fair condition |
| Superstructure | 6 | 6 | Satisfactory condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Continuous steel stringer or multi-beam girder |
| Length | about 153 ft |
| Location | 067051003 |
| NBI structure number | 000000000218370 |
| Condition class | Fair |
| Traffic status (item 41) | Posted for load |
| Last inspection (item 90) | January 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 3: scour critical: foundations unstable for the assessed or calculated scour |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Iowa department of transportation.
Busiest bridges in Lee 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 |
All bridges nearby: Lee County, IA bridge conditions · every bridge in Lee County · Iowa bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.