US Bridges

Sc 641 over Savannah Branch

Good

Colleton County, South Carolina · 1.0 MI S of Bambg/Coll LN · Structure no. 000000000001027

Built
1940
85 years old
Condition
Good
inspected January 2024
Type
Culvert
Concrete
Length
32 ft
3 main spans
Daily traffic
900
2023 count
Owner
State
State Highway Agency

About this bridge

Sc 641 over Savannah Branch is a concrete culvert carrying Sc 641 over Savannah Branch in Colleton County, South Carolina. It was built in 1940, so it is 85 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 900 vehicles a day, roughly 24% of them trucks, projected to reach 1,314 by 2043. The structure is 32 ft (9.7 m) long and 36 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesSc 641
CrossesSavannah Branch
Location1.0 MI S of Bambg/Coll LN
RouteState Highway 641
Coordinates33.03139, -81.05194
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41.8 US tons
Inventory rating25 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadUnknown
Structure length32 ft (9.7 m)
Longest span10 ft (3 m)
Deck width36 ft (11 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic900 (2023)
Projected traffic1,314 by 2043
Trucks24%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 Sc 641 over Savannah Branch built?

It was built in 1940, making it 85 years old in 2025.

What condition is Sc 641 over Savannah Branch 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 641 over Savannah Branch carry?

About 900 vehicles per day (2023 count), of which roughly 24% are trucks.

How long is Sc 641 over Savannah Branch?

The structure is 32 ft (9.7 m) long with a longest span of 10 ft (3 m) and a deck 36 ft wide.

Who owns Sc 641 over Savannah Branch?

It is owned by the State Highway Agency.