US Bridges

Sc 49 over Allison Creek

Fair

York County, South Carolina · 8.3 MI N E York · Structure no. 000000000003137

Built
1959
66 years old
Condition
Fair
inspected May 2024
Type
Tee Beam
Concrete
Length
240 ft
8 main spans
Daily traffic
6,400
2023 count
Owner
State
State Highway Agency

About this bridge

Sc 49 over Allison Creek is a concrete tee beam carrying Sc 49 over Allison Creek in York County, South Carolina. It was built in 1959, so it is 66 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 6,400 vehicles a day, roughly 6% of them trucks, projected to reach 8,512 by 2043. The structure is 240 ft (73.2 m) long and 31 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSc 49
CrossesAllison Creek
Location8.3 MI N E York
RouteState Highway 49
CountyYork County
StateSouth Carolina
Coordinates35.06028, -81.12278
Functional classUrban 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.
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 protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating28.9 US tons
Inventory rating17.2 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans8
Design loadHS 15
Structure length240 ft (73.2 m)
Longest span30 ft (9.1 m)
Deck width31 ft (9.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,400 (2023)
Projected traffic8,512 by 2043
Trucks6%
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 statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.4 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Sc 49 over Allison Creek built?

It was built in 1959, making it 66 years old in 2025.

What condition is Sc 49 over Allison Creek 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 May 2024.

How much traffic does Sc 49 over Allison Creek carry?

About 6,400 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is Sc 49 over Allison Creek?

The structure is 240 ft (73.2 m) long with a longest span of 30 ft (9.1 m) and a deck 31 ft wide.

Who owns Sc 49 over Allison Creek?

It is owned by the State Highway Agency.