US Bridges

C-30-620 over Little Durbin Creek

FairPosted for load

Laurens County, South Carolina · 16.6MI NW of Laurens · Structure no. 000000000009237

Built
1997
28 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
49 ft
3 main spans
Daily traffic
200
2023 count
Owner
County
County Highway Agency

About this bridge

C-30-620 over Little Durbin Creek is a wood or timber stringer/multi-beam or girder carrying C-30-620 over Little Durbin Creek in Laurens County, South Carolina. It was built in 1997, so it is 28 years old, younger 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 200 vehicles a day, roughly 5% of them trucks, projected to reach 256 by 2043. The structure is 49 ft (14.9 m) long and 20 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesC-30-620
CrossesLittle Durbin Creek
Location16.6MI NW of Laurens
RouteCounty Highway 620
Coordinates34.72028, -82.12868
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 protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating6.1 US tons
Inventory rating4.6 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadUnknown
Structure length49 ft (14.9 m)
Longest span18 ft (5.5 m)
Deck width20 ft (6.2 m)
Roadway width19 ft (5.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2023)
Projected traffic256 by 2043
Trucks5%
Lanes on structure2
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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$290,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was C-30-620 over Little Durbin Creek built?

It was built in 1997, making it 28 years old in 2025.

What condition is C-30-620 over Little Durbin 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 April 2024.

How much traffic does C-30-620 over Little Durbin Creek carry?

About 200 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is C-30-620 over Little Durbin Creek?

The structure is 49 ft (14.9 m) long with a longest span of 18 ft (5.5 m) and a deck 20 ft wide.

Who owns C-30-620 over Little Durbin Creek?

It is owned by the County Highway Agency.