US Bridges

S-16-35 over Fountain Branch

Fair

Darlington County, South Carolina · 6MI NE Darlington · Structure no. 000000000005926

Built
1971
54 years old
Condition
Fair
inspected January 2024
Type
Slab
Concrete
Length
30 ft
2 main spans
Daily traffic
1,900
2023 count
Owner
State
State Highway Agency

About this bridge

S-16-35 over Fountain Branch is a concrete slab carrying S-16-35 over Fountain Branch in Darlington County, South Carolina. It was built in 1971, so it is 54 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 1,900 vehicles a day, roughly 5% of them trucks, projected to reach 2,432 by 2043. The structure is 30 ft (9.1 m) long and 34 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesS-16-35
CrossesFountain Branch
Location6MI NE Darlington
RouteState Highway 35
Coordinates34.35583, -79.76028
Functional classRural Local

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
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 rating44.3 US tons
Inventory rating26.5 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans2
Design loadH 15
Structure length30 ft (9.1 m)
Longest span15 ft (4.6 m)
Deck width34 ft (10.3 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,900 (2023)
Projected traffic2,432 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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-16-35 over Fountain Branch built?

It was built in 1971, making it 54 years old in 2025.

What condition is S-16-35 over Fountain 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-16-35 over Fountain Branch carry?

About 1,900 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is S-16-35 over Fountain Branch?

The structure is 30 ft (9.1 m) long with a longest span of 15 ft (4.6 m) and a deck 34 ft wide.

Who owns S-16-35 over Fountain Branch?

It is owned by the State Highway Agency.