US Bridges

S-9-24 over Bates Mill Creek

Poor

Calhoun County, South Carolina · 4 MI N ST Mathews · Structure no. 000000000000388

Built
1930
95 years old
Condition
Poor
inspected January 2025
Type
Culvert
Concrete
Length
32 ft
3 main spans
Daily traffic
800
2023 count
Owner
State
State Highway Agency

About this bridge

S-9-24 over Bates Mill Creek is a concrete culvert carrying S-9-24 over Bates Mill Creek in Calhoun County, South Carolina. It was built in 1930, so it is 95 years old, older than the South Carolina average of 48 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 800 vehicles a day, roughly 7% of them trucks, projected to reach 1,168 by 2043. The structure is 32 ft (9.7 m) long and 32 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesS-9-24
CrossesBates Mill Creek
Location4 MI N ST Mathews
RouteState Highway 24
Coordinates33.72253, -80.78002
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJanuary 2025
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45.7 US tons
Inventory rating35.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 15
Structure length32 ft (9.7 m)
Longest span10 ft (3 m)
Deck width32 ft (9.7 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic800 (2023)
Projected traffic1,168 by 2043
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 km)
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$69,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was S-9-24 over Bates Mill Creek built?

It was built in 1930, making it 95 years old in 2025.

What condition is S-9-24 over Bates Mill Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in January 2025.

How much traffic does S-9-24 over Bates Mill Creek carry?

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

How long is S-9-24 over Bates Mill Creek?

The structure is 32 ft (9.7 m) long with a longest span of 10 ft (3 m) and a deck 32 ft wide.

Who owns S-9-24 over Bates Mill Creek?

It is owned by the State Highway Agency.