Ia 3 over Maquoketa River
Fayette County, Iowa · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Ia 3 over Maquoketa River in Fayette 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 1959, making it 66 years old at the 2025 inventory.
- It carries about 2,090 vehicles a day (traffic count year 2022).
- Its listed owner is the state highway agency.
- It is one of 140 of the 362 inventoried bridges in Fayette County rated fair (38.7%); 97 (26.8%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated May 2023, on a 24-month routine inspection cycle.
- 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 → (42.6876, -91.61219)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 5 | 5 | Fair condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Prestressed concrete stringer or multi-beam girder |
| Length | about 141 ft |
| Location | 1.7 Mi. E of Jct. 187 |
| NBI structure number | 000000000024550 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | May 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Iowa department of transportation.
Busiest bridges in Fayette County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Ia 150 over Otter Creek | 1979 | 5,400 | Fair |
| Ia 3 & 150 over Otter Creek | 1986 | 3,930 | Fair |
| Ia 150 over Unnamed Creek | 1928 | 3,290 | Fair |
| Ia 150 over Stream | 1969 | 3,290 | Good |
| US 18 over Glover Creek | 1976 | 3,110 | Good |
| US 18 over Stream | 1963 | 3,050 | Fair |
All bridges nearby: Fayette County, IA bridge conditions · every bridge in Fayette County · Iowa bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.