US Bridges

C-37-76 over Trib to Seneca Crk

FairPosted for load

Oconee County, South Carolina · 2.0 MI NE Seneca · Structure no. 000000000003940

Built
1962
63 years old
Condition
Fair
inspected October 2023
Type
Slab
Concrete
Length
45 ft
3 main spans
Daily traffic
75
2023 count
Owner
County
County Highway Agency

About this bridge

C-37-76 over Trib to Seneca Crk is a concrete slab carrying C-37-76 over Trib to Seneca Crk in Oconee County, South Carolina. It was built in 1962, so it is 63 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 75 vehicles a day, projected to reach 96 by 2043. The structure is 45 ft (13.7 m) long and 28 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesC-37-76
CrossesTrib to Seneca Crk
Location2.0 MI NE Seneca
RouteCounty Highway 76
CountyOconee County
StateSouth Carolina
Coordinates34.70066, -82.92286
Functional classUrban 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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating31.7 US tons
Inventory rating19 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadH 10
Structure length45 ft (13.7 m)
Longest span15 ft (4.6 m)
Deck width28 ft (8.4 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2023)
Projected traffic96 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was C-37-76 over Trib to Seneca Crk built?

It was built in 1962, making it 63 years old in 2025.

What condition is C-37-76 over Trib to Seneca Crk 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 October 2023.

How much traffic does C-37-76 over Trib to Seneca Crk carry?

About 75 vehicles per day (2023 count).

How long is C-37-76 over Trib to Seneca Crk?

The structure is 45 ft (13.7 m) long with a longest span of 15 ft (4.6 m) and a deck 28 ft wide.

Who owns C-37-76 over Trib to Seneca Crk?

It is owned by the County Highway Agency.