US Bridges

S-17-45 over Little Pee Dee Swamp

Fair

Dillon County, South Carolina · 2MI N Floydale · Structure no. 000000000006472

Built
1974
51 years old, rebuilt 2002
Condition
Fair
inspected February 2024
Type
Slab
Concrete
Length
60 ft
4 main spans
Daily traffic
1,100
2023 count
Owner
State
State Highway Agency

About this bridge

S-17-45 over Little Pee Dee Swamp is a concrete slab carrying S-17-45 over Little Pee Dee Swamp in Dillon County, South Carolina. It was built in 1974 and reconstructed in 2002, so it is 51 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 1,100 vehicles a day, roughly 10% of them trucks, projected to reach 1,408 by 2043. The structure is 60 ft (18.3 m) long and 33 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesS-17-45
CrossesLittle Pee Dee Swamp
Location2MI N Floydale
RouteState Highway 45
Coordinates34.33137, -79.32611
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.8 US tons
Inventory rating28.5 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans4
Design loadH 15
Structure length60 ft (18.3 m)
Longest span15 ft (4.6 m)
Deck width33 ft (10.1 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,100 (2023)
Projected traffic1,408 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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-17-45 over Little Pee Dee Swamp built?

It was built in 1974, making it 51 years old in 2025. It was reconstructed in 2002.

What condition is S-17-45 over Little Pee Dee Swamp 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 February 2024.

How much traffic does S-17-45 over Little Pee Dee Swamp carry?

About 1,100 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is S-17-45 over Little Pee Dee Swamp?

The structure is 60 ft (18.3 m) long with a longest span of 15 ft (4.6 m) and a deck 33 ft wide.

Who owns S-17-45 over Little Pee Dee Swamp?

It is owned by the State Highway Agency.