US Bridges

US 123 over Trib to 18 Mi.Creek

Fair

Pickens County, South Carolina · 2.5MI E of Central · Structure no. 000000000003446

Built
1960
65 years old
Condition
Fair
inspected June 2024
Type
Culvert
Concrete
Length
34 ft
3 main spans
Daily traffic
19,500
2023 count
Owner
State
State Highway Agency

About this bridge

US 123 over Trib to 18 Mi.Creek is a concrete culvert carrying US 123 over Trib to 18 Mi.Creek in Pickens County, South Carolina. It was built in 1960, so it is 65 years old, older than the South Carolina average of 48 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 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 19,500 vehicles a day, roughly 6% of them trucks. The structure is 34 ft (10.4 m) long and 150 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 123
CrossesTrib to 18 Mi.Creek
Location2.5MI E of Central
RouteU.S. Route 123
Coordinates34.72271, -82.73795
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40 US tons
Inventory rating23.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length34 ft (10.4 m)
Longest span10 ft (3 m)
Deck width150 ft (45.7 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,500 (2023)
Projected traffic—
Trucks6%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$36,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 123 over Trib to 18 Mi.Creek built?

It was built in 1960, making it 65 years old in 2025.

What condition is US 123 over Trib to 18 Mi.Creek 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 June 2024.

How much traffic does US 123 over Trib to 18 Mi.Creek carry?

About 19,500 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is US 123 over Trib to 18 Mi.Creek?

The structure is 34 ft (10.4 m) long with a longest span of 10 ft (3 m) and a deck 150 ft wide.

Who owns US 123 over Trib to 18 Mi.Creek?

It is owned by the State Highway Agency.