US Bridges

S-43-78 over Pudding Swamp N 0.1

Good

Sumter County, South Carolina · 10 MI SE of Mayesville · Structure no. 000000000009093

Built
1996
29 years old
Condition
Good
inspected June 2023
Type
Slab
Concrete Continuous
Length
90 ft
3 main spans
Daily traffic
150
2023 count
Owner
State
State Highway Agency

About this bridge

S-43-78 over Pudding Swamp N 0.1 is a concrete continuous slab carrying S-43-78 over Pudding Swamp N 0.1 in Sumter County, South Carolina. It was built in 1996, so it is 29 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 150 vehicles a day, roughly 7% of them trucks, projected to reach 209 by 2043. The structure is 90 ft (27.4 m) long and 37 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesS-43-78
CrossesPudding Swamp N 0.1
Location10 MI SE of Mayesville
RouteState Highway 78
Coordinates33.92248, -80.04496
Functional classRural Minor Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.9 US tons
Inventory rating40.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length90 ft (27.4 m)
Longest span30 ft (9.1 m)
Deck width37 ft (11.2 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2023)
Projected traffic209 by 2043
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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-43-78 over Pudding Swamp N 0.1 built?

It was built in 1996, making it 29 years old in 2025.

What condition is S-43-78 over Pudding Swamp N 0.1 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 June 2023.

How much traffic does S-43-78 over Pudding Swamp N 0.1 carry?

About 150 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is S-43-78 over Pudding Swamp N 0.1?

The structure is 90 ft (27.4 m) long with a longest span of 30 ft (9.1 m) and a deck 37 ft wide.

Who owns S-43-78 over Pudding Swamp N 0.1?

It is owned by the State Highway Agency.