US Bridges

S-30-64 over Walnut Creek

Good

Laurens County, South Carolina · 10.7 MI SW Laurens · Structure no. 000000000008272

Built
1989
36 years old
Condition
Good
inspected April 2023
Type
Slab
Prestressed Concrete
Length
90 ft
3 main spans
Daily traffic
175
2023 count
Owner
State
State Highway Agency

About this bridge

S-30-64 over Walnut Creek is a prestressed concrete slab carrying S-30-64 over Walnut Creek in Laurens County, South Carolina. It was built in 1989, so it is 36 years old, younger than the South Carolina average of 48 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 175 vehicles a day, roughly 6% of them trucks, projected to reach 256 by 2043. The structure is 90 ft (27.4 m) long and 39 ft wide.

Location

Open in Google Maps
CarriesS-30-64
CrossesWalnut Creek
Location10.7 MI SW Laurens
RouteState Highway 64
CountyLaurens County
StateSouth Carolina
Coordinates34.39218, -82.14881
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating97.1 US tons
Inventory rating53.2 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length90 ft (27.4 m)
Longest span30 ft (9.1 m)
Deck width39 ft (11.9 m)
Roadway width34 ft (10.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic175 (2023)
Projected traffic256 by 2043
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was S-30-64 over Walnut Creek built?

It was built in 1989, making it 36 years old in 2025.

What condition is S-30-64 over Walnut Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2023.

How much traffic does S-30-64 over Walnut Creek carry?

About 175 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is S-30-64 over Walnut Creek?

The structure is 90 ft (27.4 m) long with a longest span of 30 ft (9.1 m) and a deck 39 ft wide.

Who owns S-30-64 over Walnut Creek?

It is owned by the State Highway Agency.