US Bridges

Sc 49 over Tyger River

FairPosted for load

Union County, South Carolina · 8.1 MI SW of Union · Structure no. 000000000000579

Built
1931
94 years old, rebuilt 1972
Condition
Fair
inspected April 2023
Type
Truss - Thru
Concrete
Length
524 ft
9 main spans
Daily traffic
3,200
2023 count
Owner
State
State Highway Agency

About this bridge

Sc 49 over Tyger River is a concrete truss - thru carrying Sc 49 over Tyger River in Union County, South Carolina. It was built in 1931 and reconstructed in 1972, so it is 94 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. Its operating status is: posted for load restriction.

It carries about 3,200 vehicles a day, roughly 11% of them trucks, projected to reach 5,088 by 2043. The structure is 524 ft (159.7 m) long and 48 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesSc 49
CrossesTyger River
Location8.1 MI SW of Union
RouteState Highway 49
CountyUnion County
StateSouth Carolina
Coordinates34.66599, -81.73926
Functional classRural Minor 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating9.3 US tons
Inventory rating5.7 US tons

Structure

Structure typeTruss - Thru
MaterialConcrete
DeckConcrete, cast-in-place
Main spans9
Design loadHS 20
Structure length524 ft (159.7 m)
Longest span76 ft (23.2 m)
Deck width48 ft (14.5 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,200 (2023)
Projected traffic5,088 by 2043
Trucks11%
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 statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2.7 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Sc 49 over Tyger River built?

It was built in 1931, making it 94 years old in 2025. It was reconstructed in 1972.

What condition is Sc 49 over Tyger River 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 April 2023.

How much traffic does Sc 49 over Tyger River carry?

About 3,200 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is Sc 49 over Tyger River?

The structure is 524 ft (159.7 m) long with a longest span of 76 ft (23.2 m) and a deck 48 ft wide.

Who owns Sc 49 over Tyger River?

It is owned by the State Highway Agency.