US Bridges

S-14-50 over Tarkin Branch

Fair

Clarendon County, South Carolina · 11MI SE Manning · Structure no. 000000000004728

Built
1966
59 years old
Condition
Fair
inspected September 2024
Type
Slab
Concrete
Length
30 ft
2 main spans
Daily traffic
75
2023 count
Owner
State
State Highway Agency

About this bridge

S-14-50 over Tarkin Branch is a concrete slab carrying S-14-50 over Tarkin Branch in Clarendon County, South Carolina. It was built in 1966, so it is 59 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 5 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 75 vehicles a day, roughly 15% of them trucks, projected to reach 104 by 2043. The structure is 30 ft (9.1 m) long and 28 ft wide.

CarriesS-14-50
CrossesTarkin Branch
Location11MI SE Manning
RouteState Highway 50
Coordinates33.56543, -80.07729
Functional classRural Minor 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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.5 US tons
Inventory rating53.9 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans2
Design loadH 10
Structure length30 ft (9.1 m)
Longest span15 ft (4.6 m)
Deck width28 ft (8.4 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2023)
Projected traffic104 by 2043
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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-14-50 over Tarkin Branch built?

It was built in 1966, making it 59 years old in 2025.

What condition is S-14-50 over Tarkin 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 September 2024.

How much traffic does S-14-50 over Tarkin Branch carry?

About 75 vehicles per day (2023 count), of which roughly 15% are trucks.

How long is S-14-50 over Tarkin Branch?

The structure is 30 ft (9.1 m) long with a longest span of 15 ft (4.6 m) and a deck 28 ft wide.

Who owns S-14-50 over Tarkin Branch?

It is owned by the State Highway Agency.