US Bridges

US 178 over N. Fork 12 Mi.Creek

Fair

Pickens County, South Carolina · 3MI N of Pickens · Structure no. 000000000001120

Built
1940
85 years old, rebuilt 1957
Condition
Fair
inspected May 2024
Type
Tee Beam
Concrete
Length
66 ft
3 main spans
Daily traffic
5,900
2023 count
Owner
State
State Highway Agency

About this bridge

US 178 over N. Fork 12 Mi.Creek is a concrete tee beam carrying US 178 over N. Fork 12 Mi.Creek in Pickens County, South Carolina. It was built in 1940 and reconstructed in 1957, so it is 85 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 5,900 vehicles a day, roughly 6% of them trucks, projected to reach 9,381 by 2043. The structure is 66 ft (20.1 m) long and 40 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesUS 178
CrossesN. Fork 12 Mi.Creek
Location3MI N of Pickens
RouteU.S. Route 178
CountyPickens County
StateSouth Carolina
Coordinates34.9209, -82.71935
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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating20.4 US tons
Inventory rating12.1 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length66 ft (20.1 m)
Longest span22 ft (6.7 m)
Deck width40 ft (12.3 m)
Roadway width36 ft (11.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,900 (2023)
Projected traffic9,381 by 2043
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed6.2 mi (10 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$147,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 178 over N. Fork 12 Mi.Creek built?

It was built in 1940, making it 85 years old in 2025. It was reconstructed in 1957.

What condition is US 178 over N. Fork 12 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 May 2024.

How much traffic does US 178 over N. Fork 12 Mi.Creek carry?

About 5,900 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is US 178 over N. Fork 12 Mi.Creek?

The structure is 66 ft (20.1 m) long with a longest span of 22 ft (6.7 m) and a deck 40 ft wide.

Who owns US 178 over N. Fork 12 Mi.Creek?

It is owned by the State Highway Agency.