US Bridges

S-17-42 over Br of Buck Swamp

Good

Dillon County, South Carolina · 5MI SW Lake View · Structure no. 000000000003253

Built
2012
13 years old
Condition
Good
inspected February 2024
Type
Slab
Prestressed Concrete
Length
70 ft
1 main span
Daily traffic
325
2023 count
Owner
State
State Highway Agency

About this bridge

S-17-42 over Br of Buck Swamp is a prestressed concrete slab carrying S-17-42 over Br of Buck Swamp in Dillon 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 325 vehicles a day, roughly 5% of them trucks, projected to reach 416 by 2043. The structure is 70 ft (21.3 m) long and 36 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesS-17-42
CrossesBr of Buck Swamp
Location5MI SW Lake View
RouteState Highway 42
Coordinates34.26248, -79.22769
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.8 US tons
Inventory rating54.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length70 ft (21.3 m)
Longest span70 ft (21.3 m)
Deck width36 ft (11 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic325 (2023)
Projected traffic416 by 2043
Trucks5%
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-17-42 over Br of Buck Swamp built?

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

What condition is S-17-42 over Br of Buck 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-17-42 over Br of Buck Swamp carry?

About 325 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is S-17-42 over Br of Buck Swamp?

The structure is 70 ft (21.3 m) long with a longest span of 70 ft (21.3 m) and a deck 36 ft wide.

Who owns S-17-42 over Br of Buck Swamp?

It is owned by the State Highway Agency.