US Bridges

C-37-634 over Chauga River

FairPosted for load

Oconee County, South Carolina · 6.0MI NW of Westminister · Structure no. 000000000001109

Built
1940
85 years old
Condition
Fair
inspected June 2023
Type
Truss - Thru
Steel
Length
153 ft
1 main span
Daily traffic
100
2023 count
Owner
County
County Highway Agency

About this bridge

C-37-634 over Chauga River is a steel truss - thru carrying C-37-634 over Chauga River in Oconee County, South Carolina. It was built in 1940, 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 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 100 vehicles a day, projected to reach 128 by 2043. The structure is 153 ft (46.6 m) long and 19 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesC-37-634
CrossesChauga River
Location6.0MI NW of Westminister
RouteCounty Highway 634
CountyOconee County
StateSouth Carolina
Coordinates34.71794, -83.17721
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2023
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
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating12.9 US tons
Inventory rating7.5 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length153 ft (46.6 m)
Longest span153 ft (46.6 m)
Deck width19 ft (5.7 m)
Roadway width18 ft (5.4 m)
Vertical clearance over deck15 ft (4.4 m)

Traffic and service

Average daily traffic100 (2023)
Projected traffic128 by 2043
Trucks0%
Lanes on structure2
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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$666,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was C-37-634 over Chauga River built?

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

What condition is C-37-634 over Chauga River 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 2023.

How much traffic does C-37-634 over Chauga River carry?

About 100 vehicles per day (2023 count).

How long is C-37-634 over Chauga River?

The structure is 153 ft (46.6 m) long with a longest span of 153 ft (46.6 m) and a deck 19 ft wide.

Who owns C-37-634 over Chauga River?

It is owned by the County Highway Agency.