Co Rd X 17 over Short Creek
Louisa County, Iowa · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Co Rd X 17 over Short Creek in Louisa County, Iowa, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 8 (very good condition) on the 0-9 scale.
- It was built in 2011, making it 14 years old at the 2025 inventory.
- It carries about 540 vehicles a day (traffic count year 2022).
- Its listed owner is the county highway agency.
- It is one of 48 of the 151 inventoried bridges in Louisa County rated good (31.8%); 22 (14.6%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its class is unchanged from 2024 (good), but component ratings moved: deck 9 to 8, superstructure 9 to 8, substructure 9 to 8.
- Its most recent inspection on record is dated May 2024, on a 48-month routine inspection cycle.
- A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.
View this bridge on a map → (41.31571, -91.41231)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 9 | 8 | Very good condition |
| Superstructure | 9 | 8 | Very good condition |
| Substructure | 9 | 8 | Very good condition |
Bridge details
| Structure | Continuous concrete slab |
| Length | about 101 ft |
| Location | 075051008 |
| NBI structure number | 000000000224691 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | May 2024 |
| Inspection interval (item 91) | 48 months |
| Scour (item 113) | 8: foundations stable, scour above the top of the footing |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Iowa department of transportation.
Busiest bridges in Louisa County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 61 over Millrace Creek | 1985 | 4,950 | Fair |
| US 61 over Overflow Iowa River | 1985 | 4,950 | Fair |
| US 61 over Overflow Iowa River | 1985 | 4,950 | Fair |
| US 61 over Overflow Iowa River | 1985 | 4,950 | Fair |
| US 61 over Muskrat Lake | 1985 | 4,950 | Fair |
| US 61 over Iowa River | 1980 | 4,950 | Fair |
All bridges nearby: Louisa County, IA bridge conditions · every bridge in Louisa County · Iowa bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.