US Bridges

US 301 NB over Lemon Swamp

Fair

Bamberg County, South Carolina · 2 1/2MI S of Bamberg · Structure no. 000000000006041

Built
1972
53 years old
Condition
Fair
inspected April 2024
Type
Slab
Concrete
Length
150 ft
6 main spans
Daily traffic
1,450
2023 count
Owner
State
State Highway Agency

About this bridge

US 301 NB over Lemon Swamp is a concrete slab carrying US 301 NB over Lemon Swamp in Bamberg County, South Carolina. It was built in 1972, so it is 53 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 1,450 vehicles a day, roughly 15% of them trucks, projected to reach 2,523 by 2043. The structure is 150 ft (45.7 m) long and 43 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesUS 301 NB
CrossesLemon Swamp
Location2 1/2MI S of Bamberg
RouteU.S. Route 301
CountyBamberg County
StateSouth Carolina
Coordinates33.27312, -81.06359
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.5 US tons
Inventory rating40.3 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length150 ft (45.7 m)
Longest span25 ft (7.6 m)
Deck width43 ft (13.1 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,450 (2023)
Projected traffic2,523 by 2043
Trucks15%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

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 US 301 NB over Lemon Swamp built?

It was built in 1972, making it 53 years old in 2025.

What condition is US 301 NB over Lemon 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 April 2024.

How much traffic does US 301 NB over Lemon Swamp carry?

About 1,450 vehicles per day (2023 count), of which roughly 15% are trucks.

How long is US 301 NB over Lemon Swamp?

The structure is 150 ft (45.7 m) long with a longest span of 25 ft (7.6 m) and a deck 43 ft wide.

Who owns US 301 NB over Lemon Swamp?

It is owned by the State Highway Agency.