I-77 NB over Trib to Gills Creek
GoodRichland County, South Carolina · 4 MI S Columbia · Structure no. 000000000007729
- Built
- 1983
- 42 years old
- Condition
- Good
- inspected December 2023
- Type
- Slab
- Concrete Continuous
- Length
- 480 ft
- 16 main spans
- Daily traffic
- 47,350
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I-77 NB over Trib to Gills Creek is a concrete continuous slab carrying I-77 NB over Trib to Gills Creek in Richland County, South Carolina. It was built in 1983, so it is 42 years old, younger than the South Carolina average of 48 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 47,350 vehicles a day, roughly 16% of them trucks, projected to reach 58,714 by 2043. The structure is 480 ft (146.3 m) long and 59 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 8 Very Good | No problems noted. |
| 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 I-77 NB over Trib to Gills Creek built?
It was built in 1983, making it 42 years old in 2025.
What condition is I-77 NB over Trib to Gills 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 December 2023.
How much traffic does I-77 NB over Trib to Gills Creek carry?
About 47,350 vehicles per day (2023 count), of which roughly 16% are trucks.
How long is I-77 NB over Trib to Gills Creek?
The structure is 480 ft (146.3 m) long with a longest span of 90 ft (27.4 m) and a deck 59 ft wide.
Who owns I-77 NB over Trib to Gills Creek?
It is owned by the State Highway Agency.