US Bridges

Sc 9 over Walkers Mill Branch

Fair

Chester County, South Carolina · 4.8MI W of Chester · Structure no. 000000000000772

Built
1937
88 years old, rebuilt 1972
Condition
Fair
inspected September 2023
Type
Culvert
Concrete
Length
31 ft
3 main spans
Daily traffic
3,300
2023 count
Owner
State
State Highway Agency

About this bridge

Sc 9 over Walkers Mill Branch is a concrete culvert carrying Sc 9 over Walkers Mill Branch in Chester County, South Carolina. It was built in 1937 and reconstructed in 1972, so it is 88 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 6 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 3,300 vehicles a day, roughly 16% of them trucks, projected to reach 5,742 by 2043. The structure is 31 ft (9.6 m) long and 92 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesSc 9
CrossesWalkers Mill Branch
Location4.8MI W of Chester
RouteState Highway 9
CountyChester County
StateSouth Carolina
Coordinates34.71877, -81.28703
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51 US tons
Inventory rating39.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 20
Structure length31 ft (9.6 m)
Longest span10 ft (3 m)
Deck width92 ft (28 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,300 (2023)
Projected traffic5,742 by 2043
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes

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 Sc 9 over Walkers Mill Branch built?

It was built in 1937, making it 88 years old in 2025. It was reconstructed in 1972.

What condition is Sc 9 over Walkers Mill 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 2023.

How much traffic does Sc 9 over Walkers Mill Branch carry?

About 3,300 vehicles per day (2023 count), of which roughly 16% are trucks.

How long is Sc 9 over Walkers Mill Branch?

The structure is 31 ft (9.6 m) long with a longest span of 10 ft (3 m) and a deck 92 ft wide.

Who owns Sc 9 over Walkers Mill Branch?

It is owned by the State Highway Agency.