US Bridges

S-29-64 over Unnamed

Good

Lancaster County, South Carolina · 11.5 MI N Van Wyck · Structure no. 000000000008886

Built
1995
30 years old
Condition
Good
inspected June 2023
Type
Slab
Concrete Continuous
Length
74 ft
1 main span
Daily traffic
7,100
2023 count
Owner
State
State Highway Agency

About this bridge

S-29-64 over Unnamed is a concrete continuous slab carrying S-29-64 over Unnamed in Lancaster County, South Carolina. It was built in 1995, so it is 30 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 7,100 vehicles a day, roughly 3% of them trucks, projected to reach 9,443 by 2043. The structure is 74 ft (22.6 m) long and 37 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesS-29-64
CrossesUnnamed
Location11.5 MI N Van Wyck
RouteState Highway 64
Coordinates35.02587, -80.87055
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40 US tons
Inventory rating23.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckWood or timber
Main spans1 (+2 approach)
Design loadHS 25 or greater
Structure length74 ft (22.6 m)
Longest span30 ft (9.1 m)
Deck width37 ft (11.2 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,100 (2023)
Projected traffic9,443 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was S-29-64 over Unnamed built?

It was built in 1995, making it 30 years old in 2025.

What condition is S-29-64 over Unnamed 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 June 2023.

How much traffic does S-29-64 over Unnamed carry?

About 7,100 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is S-29-64 over Unnamed?

The structure is 74 ft (22.6 m) long with a longest span of 30 ft (9.1 m) and a deck 37 ft wide.

Who owns S-29-64 over Unnamed?

It is owned by the State Highway Agency.