US Bridges

US 176 WB over Rocky Creek

Fair

Union County, South Carolina · 5.7 MI N.W. of Union · Structure no. 000000000008111

Built
1987
38 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
240 ft
1 main span
Daily traffic
4,600
2023 count
Owner
State
State Highway Agency

About this bridge

US 176 WB over Rocky Creek is a steel stringer/multi-beam or girder carrying US 176 WB over Rocky Creek in Union County, South Carolina. It was built in 1987, so it is 38 years old, younger 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 4,600 vehicles a day, roughly 10% of them trucks, projected to reach 7,314 by 2043. The structure is 240 ft (73.2 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS 176 WB
CrossesRocky Creek
Location5.7 MI N.W. of Union
RouteU.S. Route 176
CountyUnion County
StateSouth Carolina
Coordinates34.79318, -81.66287
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70 US tons
Inventory rating53.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+6 approach)
Design loadHS 20
Structure length240 ft (73.2 m)
Longest span60 ft (18.3 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,600 (2023)
Projected traffic7,314 by 2043
Trucks10%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 176 WB over Rocky Creek built?

It was built in 1987, making it 38 years old in 2025.

What condition is US 176 WB over Rocky 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 September 2024.

How much traffic does US 176 WB over Rocky Creek carry?

About 4,600 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is US 176 WB over Rocky Creek?

The structure is 240 ft (73.2 m) long with a longest span of 60 ft (18.3 m) and a deck 43 ft wide.

Who owns US 176 WB over Rocky Creek?

It is owned by the State Highway Agency.