US Bridges

C-4-855 over Wilsons CR

FairPosted for load

Anderson County, South Carolina · 13.3 MI SE Anderson · Structure no. 000000000002656

Built
1958
67 years old, rebuilt 2004
Condition
Fair
inspected November 2024
Type
Truss - Thru
Steel
Length
92 ft
1 main span
Daily traffic
125
2023 count
Owner
County
County Highway Agency

About this bridge

C-4-855 over Wilsons CR is a steel truss - thru carrying C-4-855 over Wilsons CR in Anderson County, South Carolina. It was built in 1958 and reconstructed in 2004, so it is 67 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. Its operating status is: posted for load restriction.

It carries about 125 vehicles a day, roughly 5% of them trucks, projected to reach 160 by 2043. The structure is 92 ft (28 m) long and 19 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesC-4-855
CrossesWilsons CR
Location13.3 MI SE Anderson
RouteCounty Highway 855
CountyAnderson County
StateSouth Carolina
Coordinates34.30462, -82.61926
Functional classRural Local

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating8.3 US tons
Inventory rating4.6 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadH 10
Structure length92 ft (28 m)
Longest span92 ft (28 m)
Deck width19 ft (5.8 m)
Roadway width18 ft (5.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic125 (2023)
Projected traffic160 by 2043
Trucks5%
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

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$434,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was C-4-855 over Wilsons CR built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 2004.

What condition is C-4-855 over Wilsons CR 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 November 2024.

How much traffic does C-4-855 over Wilsons CR carry?

About 125 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is C-4-855 over Wilsons CR?

The structure is 92 ft (28 m) long with a longest span of 92 ft (28 m) and a deck 19 ft wide.

Who owns C-4-855 over Wilsons CR?

It is owned by the County Highway Agency.