US Bridges

S-46-74 over Mitchell Branch

Fair

York County, South Carolina · 2.1 MI SW Sharon · Structure no. 000000000002871

Built
1958
67 years old
Condition
Fair
inspected January 2025
Type
Slab
Concrete
Length
60 ft
4 main spans
Daily traffic
400
2023 count
Owner
State
State Highway Agency

About this bridge

S-46-74 over Mitchell Branch is a concrete slab carrying S-46-74 over Mitchell Branch in York County, South Carolina. It was built in 1958, so it is 67 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 400 vehicles a day, roughly 5% of them trucks, projected to reach 512 by 2025. The structure is 60 ft (18.3 m) long and 28 ft wide.

Location

Open in Google Maps
CarriesS-46-74
CrossesMitchell Branch
Location2.1 MI SW Sharon
RouteState Highway 74
CountyYork County
StateSouth Carolina
Coordinates34.92694, -81.36278
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 inspectionJanuary 2025
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating34.6 US tons
Inventory rating20.7 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 width28 ft (8.4 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (2023)
Projected traffic512 by 2025
Trucks5%
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was S-46-74 over Mitchell Branch built?

It was built in 1958, making it 67 years old in 2025.

What condition is S-46-74 over Mitchell 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 2025.

How much traffic does S-46-74 over Mitchell Branch carry?

About 400 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is S-46-74 over Mitchell Branch?

The structure is 60 ft (18.3 m) long with a longest span of 15 ft (4.6 m) and a deck 28 ft wide.

Who owns S-46-74 over Mitchell Branch?

It is owned by the State Highway Agency.