Irr/Fas 3920 over South Blackbird Creek
GoodThurston County, Nebraska · JCT US77/S-87B 6E · Structure no. C008713210
- Built
- 1964
- 61 years old
- Condition
- Good
- inspected November 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 151 ft
- 3 main spans
- Daily traffic
- 40
- 2011 count
- Owner
- County
- County Highway Agency
About this bridge
Irr/Fas 3920 over South Blackbird Creek is a steel continuous stringer/multi-beam or girder carrying Irr/Fas 3920 over South Blackbird Creek in Thurston County, Nebraska. It was built in 1964, so it is 61 years old, older than the Nebraska average of 47.1 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 40 vehicles a day, projected to reach 40 by 2042. The structure is 151 ft (46 m) long and 24 ft wide. If it were closed, the detour would be 49.7 mi (80 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Irr/Fas 3920 over South Blackbird Creek built?
It was built in 1964, making it 61 years old in 2025.
What condition is Irr/Fas 3920 over South Blackbird Creek in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2024.
How much traffic does Irr/Fas 3920 over South Blackbird Creek carry?
About 40 vehicles per day (2011 count).
How long is Irr/Fas 3920 over South Blackbird Creek?
The structure is 151 ft (46 m) long with a longest span of 60 ft (18.3 m) and a deck 24 ft wide.
Who owns Irr/Fas 3920 over South Blackbird Creek?
It is owned by the County Highway Agency.