US Bridges

Sc 642 over Eagle Creek

Fair

Dorchester County, South Carolina · 5MI SE Sumrvl · Structure no. 000000000002330

Built
1956
69 years old, rebuilt 1987
Condition
Fair
inspected May 2024
Type
Culvert
Concrete
Length
38 ft
3 main spans
Daily traffic
40,300
2023 count
Owner
State
State Highway Agency

About this bridge

Sc 642 over Eagle Creek is a concrete culvert carrying Sc 642 over Eagle Creek in Dorchester County, South Carolina. It was built in 1956 and reconstructed in 1987, so it is 69 years old, older 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.

It carries about 40,300 vehicles a day, roughly 4% of them trucks, projected to reach 57,629 by 2043. The structure is 38 ft (11.7 m) long and 110 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesSc 642
CrossesEagle Creek
Location5MI SE Sumrvl
RouteState Highway 642
Coordinates32.95066, -80.15927
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.5 US tons
Inventory rating51 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 15
Structure length38 ft (11.7 m)
Longest span12 ft (3.7 m)
Deck width110 ft (33.5 m)
Roadway width65 ft (19.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40,300 (2023)
Projected traffic57,629 by 2043
Trucks4%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemYes

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 Sc 642 over Eagle Creek built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 1987.

What condition is Sc 642 over Eagle 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 May 2024.

How much traffic does Sc 642 over Eagle Creek carry?

About 40,300 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Sc 642 over Eagle Creek?

The structure is 38 ft (11.7 m) long with a longest span of 12 ft (3.7 m) and a deck 110 ft wide.

Who owns Sc 642 over Eagle Creek?

It is owned by the State Highway Agency.