Richardson Highway over Tanana River Big Delta
FairSoutheast Fairbanks Census Area, Alaska · Mile Point 277.9 · Structure no. 0524
- Built
- 1966
- 59 years old
- Condition
- Fair
- inspected July 2024
- Type
- Truss - Thru
- Steel
- Length
- 783 ft
- 1 main span
- Daily traffic
- 1,990
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
Richardson Highway over Tanana River Big Delta is a steel truss - thru carrying Richardson Highway over Tanana River Big Delta in Southeast Fairbanks Census Area, Alaska. It was built in 1966, so it is 59 years old, older than the Alaska average of 35.9 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 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 1,990 vehicles a day, roughly 16% of them trucks, projected to reach 2,380 by 2039. The structure is 783 ft (238.8 m) long and 34 ft wide. If it were closed, the detour would be 123.7 mi (199 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Richardson Highway over Tanana River Big Delta built?
It was built in 1966, making it 59 years old in 2025.
What condition is Richardson Highway over Tanana River Big Delta 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 July 2024.
How much traffic does Richardson Highway over Tanana River Big Delta carry?
About 1,990 vehicles per day (2020 count), of which roughly 16% are trucks.
How long is Richardson Highway over Tanana River Big Delta?
The structure is 783 ft (238.8 m) long with a longest span of 399 ft (121.6 m) and a deck 34 ft wide.
Who owns Richardson Highway over Tanana River Big Delta?
It is owned by the State Highway Agency.