US Bridges

S-21-24 over Jefferies Creek

Good

Florence County, South Carolina · 10 MI SE Florence · Structure no. 000000000003869

Built
2012
13 years old
Condition
Good
inspected April 2024
Type
Slab
Concrete Continuous
Length
320 ft
8 main spans
Daily traffic
1,200
2023 count
Owner
State
State Highway Agency

About this bridge

S-21-24 over Jefferies Creek is a concrete continuous slab carrying S-21-24 over Jefferies Creek in Florence County, South Carolina. It was built in 2012, so it is 13 years old, younger than the South Carolina average of 48 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,200 vehicles a day, roughly 31% of them trucks. The structure is 320 ft (97.5 m) long and 43 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesS-21-24
CrossesJefferies Creek
Location10 MI SE Florence
RouteState Highway 24
Coordinates34.12197, -79.57488
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.5 US tons
Inventory rating51 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans8
Design loadHL 93
Structure length320 ft (97.5 m)
Longest span40 ft (12.2 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,200 (2023)
Projected traffic—
Trucks31%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was S-21-24 over Jefferies Creek built?

It was built in 2012, making it 13 years old in 2025.

What condition is S-21-24 over Jefferies Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2024.

How much traffic does S-21-24 over Jefferies Creek carry?

About 1,200 vehicles per day (2023 count), of which roughly 31% are trucks.

How long is S-21-24 over Jefferies Creek?

The structure is 320 ft (97.5 m) long with a longest span of 40 ft (12.2 m) and a deck 43 ft wide.

Who owns S-21-24 over Jefferies Creek?

It is owned by the State Highway Agency.