US Bridges

S-46-1255 over Br Manchester CR

Fair

York County, South Carolina · City of Rock Hill · Structure no. 000000000006827

Built
1975
50 years old
Condition
Fair
inspected May 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-46-1255 over Br Manchester CR is a concrete slab carrying S-46-1255 over Br Manchester CR in York County, South Carolina. It was built in 1975, 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 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 1,700 vehicles a day, roughly 5% of them trucks, projected to reach 2,176 by 2043. The structure is 60 ft (18.3 m) long and 38 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesS-46-1255
CrossesBr Manchester CR
LocationCity of Rock Hill
RouteState Highway 1255
CountyYork County
StateSouth Carolina
Coordinates34.93417, -81.00722
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating31.4 US tons
Inventory rating18.5 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans4
Design loadH 10
Structure length60 ft (18.3 m)
Longest span15 ft (4.6 m)
Deck width38 ft (11.7 m)
Roadway width37 ft (11.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,700 (2023)
Projected traffic2,176 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-46-1255 over Br Manchester CR built?

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

What condition is S-46-1255 over Br Manchester CR 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 S-46-1255 over Br Manchester CR carry?

About 1,700 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is S-46-1255 over Br Manchester CR?

The structure is 60 ft (18.3 m) long with a longest span of 15 ft (4.6 m) and a deck 38 ft wide.

Who owns S-46-1255 over Br Manchester CR?

It is owned by the State Highway Agency.