US Bridges

US 1 over South Edisto River

Good

Aiken County, South Carolina · 12 MI N of Aiken · Structure no. 000000000010189

Built
2020
5 years old
Condition
Good
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
290 ft
4 main spans
Daily traffic
3,900
2023 count
Owner
State
State Highway Agency

About this bridge

US 1 over South Edisto River is a prestressed concrete stringer/multi-beam or girder carrying US 1 over South Edisto River in Aiken County, South Carolina. It was built in 2020, so it is 5 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 3,900 vehicles a day, roughly 12% of them trucks, projected to reach 6,201 by 2043. The structure is 290 ft (88.4 m) long and 47 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesUS 1
CrossesSouth Edisto River
Location12 MI N of Aiken
RouteU.S. Route 1
Coordinates33.72733, -81.65551
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating47.5 US tons
Inventory rating36.8 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHL 93
Structure length290 ft (88.4 m)
Longest span82 ft (25 m)
Deck width47 ft (14.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,900 (2023)
Projected traffic6,201 by 2043
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 US 1 over South Edisto River built?

It was built in 2020, making it 5 years old in 2025.

What condition is US 1 over South Edisto 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 February 2024.

How much traffic does US 1 over South Edisto River carry?

About 3,900 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is US 1 over South Edisto River?

The structure is 290 ft (88.4 m) long with a longest span of 82 ft (25 m) and a deck 47 ft wide.

Who owns US 1 over South Edisto River?

It is owned by the State Highway Agency.