US Bridges

Sc 9 over Deep Creek

Fair

Chesterfield County, South Carolina · 2.1 MI E of Mt Crothan · Structure no. 000000000002154

Built
1955
70 years old
Condition
Fair
inspected November 2023
Type
Tee Beam
Concrete
Length
90 ft
3 main spans
Daily traffic
7,800
2023 count
Owner
State
State Highway Agency

About this bridge

Sc 9 over Deep Creek is a concrete tee beam carrying Sc 9 over Deep Creek in Chesterfield County, South Carolina. It was built in 1955, so it is 70 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 7,800 vehicles a day, roughly 14% of them trucks, projected to reach 13,572 by 2043. The structure is 90 ft (27.4 m) long and 33 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesSc 9
CrossesDeep Creek
Location2.1 MI E of Mt Crothan
RouteState Highway 9
CountyChesterfield County
StateSouth Carolina
Coordinates34.75206, -80.19541
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36.8 US tons
Inventory rating28.5 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 15
Structure length90 ft (27.4 m)
Longest span30 ft (9.1 m)
Deck width33 ft (10.2 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,800 (2023)
Projected traffic13,572 by 2043
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$356,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Sc 9 over Deep Creek built?

It was built in 1955, making it 70 years old in 2025.

What condition is Sc 9 over Deep 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 November 2023.

How much traffic does Sc 9 over Deep Creek carry?

About 7,800 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is Sc 9 over Deep Creek?

The structure is 90 ft (27.4 m) long with a longest span of 30 ft (9.1 m) and a deck 33 ft wide.

Who owns Sc 9 over Deep Creek?

It is owned by the State Highway Agency.