US Bridges

S-17-45 over Little Pee Dee Swamp

Good

Dillon County, South Carolina · 3 MI N Floydale · Structure no. 000000000010292

Built
2019
6 years old
Condition
Good
inspected February 2024
Type
Slab
Prestressed Concrete
Length
138 ft
1 main span
Daily traffic
1,100
2023 count
Owner
State
State Highway Agency

About this bridge

S-17-45 over Little Pee Dee Swamp is a prestressed concrete slab carrying S-17-45 over Little Pee Dee Swamp in Dillon County, South Carolina. It was built in 2019, so it is 6 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,100 vehicles a day, roughly 10% of them trucks, projected to reach 1,408 by 2043. The structure is 138 ft (42.1 m) long and 39 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesS-17-45
CrossesLittle Pee Dee Swamp
Location3 MI N Floydale
RouteState Highway 45
Coordinates34.33278, -79.32444
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation9: Superior to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.8 US tons
Inventory rating47.5 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1 (+2 approach)
Design loadHS 20
Structure length138 ft (42.1 m)
Longest span50 ft (15.2 m)
Deck width39 ft (11.9 m)
Roadway width36 ft (11 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
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 2019, making it 6 years old in 2025.

What condition is S-17-45 over Little Pee Dee Swamp 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 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 138 ft (42.1 m) long with a longest span of 50 ft (15.2 m) and a deck 39 ft wide.

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

It is owned by the State Highway Agency.