SB-US77 over I129
GoodDakota County, Nebraska · I129/US77 Interchg · Structure no. S129 00038
- Built
- 1977
- 48 years old, rebuilt 2021
- Condition
- Good
- inspected September 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 246 ft
- 2 main spans
- Daily traffic
- 1,575
- 2018 count
- Owner
- State
- State Highway Agency
About this bridge
SB-US77 over I129 is a steel continuous stringer/multi-beam or girder carrying SB-US77 over I129 in Dakota County, Nebraska. It was built in 1977 and reconstructed in 2021, so it is 48 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 1,575 vehicles a day, roughly 14% of them trucks, projected to reach 2,126 by 2038. The structure is 246 ft (75 m) long and 52 ft wide.
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. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SB-US77 over I129 built?
It was built in 1977, making it 48 years old in 2025. It was reconstructed in 2021.
What condition is SB-US77 over I129 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 September 2024.
How much traffic does SB-US77 over I129 carry?
About 1,575 vehicles per day (2018 count), of which roughly 14% are trucks.
How long is SB-US77 over I129?
The structure is 246 ft (75 m) long with a longest span of 122 ft (37.2 m) and a deck 52 ft wide.
Who owns SB-US77 over I129?
It is owned by the State Highway Agency.