Irr:summer Bay Rd over Summer Bay Creek
Aleutians West Census Area, Alaska · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Irr:summer Bay Rd over Summer Bay Creek in Aleutians West Census Area, Alaska, 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 2014, making it 11 years old at the 2025 inventory.
- It carries about 400 vehicles a day (traffic count year 2020).
- Its listed owner is a city or municipal highway agency.
- It is one of 6 of the 8 inventoried bridges in Aleutians West Census Area rated good (75.0%); 0 (0.0%) are rated poor.
- 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 → (53.89671, -166.45913)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 8 | Very good condition |
| Superstructure | 9 | Excellent condition |
| Substructure | 8 | Very good condition |
Bridge details
| Structure | Steel stringer or multi-beam girder |
| Length | about 69 ft |
| Location | Mile Point 0.1 |
| NBI structure number | 1686 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Alaska department of transportation.
Busiest bridges in Aleutians West Census Area
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Irr:airport Beach over South Channel Unalaska | 2008 | 3,450 | Good |
| IRR:5TH Street over Iliuliuk River | 1983 | 2,750 | Fair |
| Irr:steward Road over Unalaska Creek | 2006 | 2,333 | Good |
| Captains Bay Road over Pyramid Creek | 2001 | 976 | Fair |
| Irr:kelty Field Rd over Kelty Field | 1999 | 30 | Good |
| Irr:dock Street over Atka Dock Creek | 1997 | 20 | Good |
All bridges nearby: Aleutians West Census Area, AK bridge conditions · every bridge in Aleutians West Census Area · Alaska bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.