US Bridges

Sc 61/ASHLEYRIVRRD over Trib of Ashley River

Good

Dorchester County, South Carolina · 6 MI SW of Ladson · Structure no. 000000000010706

Built
1925
100 years old, rebuilt 1959
Condition
Good
inspected January 2024
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
12,200
2023 count
Owner
State
State Highway Agency

About this bridge

Sc 61/ASHLEYRIVRRD over Trib of Ashley River is a concrete culvert carrying Sc 61/ASHLEYRIVRRD over Trib of Ashley River in Dorchester County, South Carolina. It was built in 1925 and reconstructed in 1959, so it is 100 years old, older 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 12,200 vehicles a day, roughly 5% of them trucks, projected to reach 14,884 by 2043. The structure is 21 ft (6.4 m) long and 49 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesSc 61/ASHLEYRIVRRD
CrossesTrib of Ashley River
Location6 MI SW of Ladson
RouteState Highway 61
Coordinates32.8975, -80.13806
Functional classRural Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51 US tons
Inventory rating30.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width49 ft (14.9 m)
Roadway width37 ft (11.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,200 (2023)
Projected traffic14,884 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Sc 61/ASHLEYRIVRRD over Trib of Ashley River built?

It was built in 1925, making it 100 years old in 2025. It was reconstructed in 1959.

What condition is Sc 61/ASHLEYRIVRRD over Trib of Ashley River 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 January 2024.

How much traffic does Sc 61/ASHLEYRIVRRD over Trib of Ashley River carry?

About 12,200 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Sc 61/ASHLEYRIVRRD over Trib of Ashley River?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m) and a deck 49 ft wide.

Who owns Sc 61/ASHLEYRIVRRD over Trib of Ashley River?

It is owned by the State Highway Agency.