US Bridges

S-16-41 over Seed Branch

Fair

Darlington County, South Carolina · 4MI NW Darlington · Structure no. 000000000006650

Built
1975
50 years old, rebuilt 1999
Condition
Fair
inspected January 2024
Type
Slab
Concrete
Length
60 ft
4 main spans
Daily traffic
1,700
2023 count
Owner
State
State Highway Agency

About this bridge

S-16-41 over Seed Branch is a concrete slab carrying S-16-41 over Seed Branch in Darlington County, South Carolina. It was built in 1975 and reconstructed in 1999, so it is 50 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 1,700 vehicles a day, roughly 13% of them trucks, projected to reach 2,482 by 2043. The structure is 60 ft (18.3 m) long and 34 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesS-16-41
CrossesSeed Branch
Location4MI NW Darlington
RouteState Highway 41
CountyDarlington County
StateSouth Carolina
Coordinates34.41306, -79.94083
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43.2 US tons
Inventory rating25.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans4
Design loadH 15
Structure length60 ft (18.3 m)
Longest span15 ft (4.6 m)
Deck width34 ft (10.5 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,700 (2023)
Projected traffic2,482 by 2043
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 S-16-41 over Seed Branch built?

It was built in 1975, making it 50 years old in 2025. It was reconstructed in 1999.

What condition is S-16-41 over Seed Branch 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 January 2024.

How much traffic does S-16-41 over Seed Branch carry?

About 1,700 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is S-16-41 over Seed Branch?

The structure is 60 ft (18.3 m) long with a longest span of 15 ft (4.6 m) and a deck 34 ft wide.

Who owns S-16-41 over Seed Branch?

It is owned by the State Highway Agency.