US Bridges

US 176 over Polk Spring Creek

Fair

Calhoun County, South Carolina · 5MI S of Cameron · Structure no. 000000000002481

Built
1957
68 years old
Condition
Fair
inspected July 2024
Type
Culvert
Concrete
Length
32 ft
3 main spans
Daily traffic
1,100
2023 count
Owner
State
State Highway Agency

About this bridge

US 176 over Polk Spring Creek is a concrete culvert carrying US 176 over Polk Spring Creek in Calhoun County, South Carolina. It was built in 1957, so it is 68 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 6 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 1,100 vehicles a day, roughly 23% of them trucks, projected to reach 1,606 by 2043. The structure is 32 ft (9.7 m) long and 35 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesUS 176
CrossesPolk Spring Creek
Location5MI S of Cameron
RouteU.S. Route 176
CountyCalhoun County
StateSouth Carolina
Coordinates33.5043, -80.66461
Functional classRural Major Collector

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.2 US tons
Inventory rating28.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length32 ft (9.7 m)
Longest span10 ft (3 m)
Deck width35 ft (10.7 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,100 (2023)
Projected traffic1,606 by 2043
Trucks23%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 US 176 over Polk Spring Creek built?

It was built in 1957, making it 68 years old in 2025.

What condition is US 176 over Polk Spring 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 July 2024.

How much traffic does US 176 over Polk Spring Creek carry?

About 1,100 vehicles per day (2023 count), of which roughly 23% are trucks.

How long is US 176 over Polk Spring Creek?

The structure is 32 ft (9.7 m) long with a longest span of 10 ft (3 m) and a deck 35 ft wide.

Who owns US 176 over Polk Spring Creek?

It is owned by the State Highway Agency.