US Bridges

S-15-166 over Trib to Indian Creek

Good

Colleton County, South Carolina · 9.8 MI NW Waltb · Structure no. 000000000001816

Built
2008
17 years old
Condition
Good
inspected March 2025
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
40 ft
1 main span
Daily traffic
250
2023 count
Owner
State
State Highway Agency

About this bridge

S-15-166 over Trib to Indian Creek is a prestressed concrete box beam or girders - multiple carrying S-15-166 over Trib to Indian Creek in Colleton County, South Carolina. It was built in 2008, so it is 17 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 250 vehicles a day, roughly 7% of them trucks, projected to reach 365 by 2043. The structure is 40 ft (12.2 m) long and 36 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesS-15-166
CrossesTrib to Indian Creek
Location9.8 MI NW Waltb
RouteState Highway 166
Coordinates32.91479, -80.83323
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating84.7 US tons
Inventory rating49.6 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 25 or greater
Structure length40 ft (12.2 m)
Longest span40 ft (12.2 m)
Deck width36 ft (11 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2023)
Projected traffic365 by 2043
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was S-15-166 over Trib to Indian Creek built?

It was built in 2008, making it 17 years old in 2025.

What condition is S-15-166 over Trib to Indian 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 March 2025.

How much traffic does S-15-166 over Trib to Indian Creek carry?

About 250 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is S-15-166 over Trib to Indian Creek?

The structure is 40 ft (12.2 m) long with a longest span of 40 ft (12.2 m) and a deck 36 ft wide.

Who owns S-15-166 over Trib to Indian Creek?

It is owned by the State Highway Agency.