US Bridges

Sc 9 over Thompson Creek

Fair

Chesterfield County, South Carolina · Chesterfield City Limits · Structure no. 000000000000597

Built
1932
93 years old, rebuilt 1975
Condition
Fair
inspected November 2023
Type
Tee Beam
Concrete
Length
500 ft
20 main spans
Daily traffic
9,900
2023 count
Owner
State
State Highway Agency

About this bridge

Sc 9 over Thompson Creek is a concrete tee beam carrying Sc 9 over Thompson Creek in Chesterfield County, South Carolina. It was built in 1932 and reconstructed in 1975, so it is 93 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 9,900 vehicles a day, roughly 10% of them trucks, projected to reach 17,226 by 2043. The structure is 500 ft (152.4 m) long and 76 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesSc 9
CrossesThompson Creek
LocationChesterfield City Limits
RouteState Highway 9
CountyChesterfield County
StateSouth Carolina
Coordinates34.72875, -80.06344
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
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 protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans20
Design loadH 15
Structure length500 ft (152.4 m)
Longest span25 ft (7.6 m)
Deck width76 ft (23.2 m)
Roadway width65 ft (19.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,900 (2023)
Projected traffic17,226 by 2043
Trucks10%
Lanes on structure5
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 statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$266,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Sc 9 over Thompson Creek built?

It was built in 1932, making it 93 years old in 2025. It was reconstructed in 1975.

What condition is Sc 9 over Thompson 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 Thompson Creek carry?

About 9,900 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Sc 9 over Thompson Creek?

The structure is 500 ft (152.4 m) long with a longest span of 25 ft (7.6 m) and a deck 76 ft wide.

Who owns Sc 9 over Thompson Creek?

It is owned by the State Highway Agency.