US Bridges

S-30-34 over I-26

Fair

Laurens County, South Carolina · 3.5 MI NE Clinton · Structure no. 000000000003017

Built
1959
66 years old, rebuilt 2015
Condition
Fair
inspected May 2023
Type
Tee Beam
Concrete
Length
222 ft
4 main spans
Daily traffic
175
2023 count
Owner
State
State Highway Agency

About this bridge

S-30-34 over I-26 is a concrete tee beam carrying S-30-34 over I-26 in Laurens County, South Carolina. It was built in 1959 and reconstructed in 2015, so it is 66 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 175 vehicles a day, roughly 19% of them trucks, projected to reach 243 by 2043. The structure is 222 ft (67.8 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesS-30-34
CrossesI-26
Location3.5 MI NE Clinton
RouteState Highway 34
Coordinates34.4796, -81.82117
Functional classRural Minor 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating42.1 US tons
Inventory rating24.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 25 or greater
Structure length222 ft (67.8 m)
Longest span58 ft (17.7 m)
Deck width30 ft (9.2 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic175 (2023)
Projected traffic243 by 2043
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
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 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 S-30-34 over I-26 built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 2015.

What condition is S-30-34 over I-26 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 May 2023.

How much traffic does S-30-34 over I-26 carry?

About 175 vehicles per day (2023 count), of which roughly 19% are trucks.

How long is S-30-34 over I-26?

The structure is 222 ft (67.8 m) long with a longest span of 58 ft (17.7 m) and a deck 30 ft wide.

Who owns S-30-34 over I-26?

It is owned by the State Highway Agency.