US 30 over Deer Crossing
FairBannock County, Idaho · 4.7 E. Lava Hot Springs · Structure no. 000000000013730
- Built
- 1976
- 49 years old
- Condition
- Fair
- inspected October 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 76 ft
- 1 main span
- Daily traffic
- 4,300
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 30 over Deer Crossing is a prestressed concrete stringer/multi-beam or girder carrying US 30 over Deer Crossing in Bannock County, Idaho. It was built in 1976, so it is 49 years old, older than the Idaho average of 45.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 4,300 vehicles a day, roughly 20% of them trucks, projected to reach 6,450 by 2042. The structure is 76 ft (23.2 m) long and 66 ft wide. If it were closed, the detour would be 11.8 mi (19 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 30 over Deer Crossing built?
It was built in 1976, making it 49 years old in 2025.
What condition is US 30 over Deer Crossing in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2024.
How much traffic does US 30 over Deer Crossing carry?
About 4,300 vehicles per day (2023 count), of which roughly 20% are trucks.
How long is US 30 over Deer Crossing?
The structure is 76 ft (23.2 m) long with a longest span of 75 ft (22.9 m) and a deck 66 ft wide.
Who owns US 30 over Deer Crossing?
It is owned by the State Highway Agency.