US Bridges

US 378 over Beaver Dam Creek

Fair

Lexington County, South Carolina · 7 MI W of Lexington · Structure no. 000000000009523

Built
2000
25 years old
Condition
Fair
inspected October 2023
Type
Slab
Concrete Continuous
Length
330 ft
6 main spans
Daily traffic
16,800
2023 count
Owner
State
State Highway Agency

About this bridge

US 378 over Beaver Dam Creek is a concrete continuous slab carrying US 378 over Beaver Dam Creek in Lexington County, South Carolina. It was built in 2000, so it is 25 years old, younger 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 16,800 vehicles a day, roughly 6% of them trucks, projected to reach 26,880 by 2043. The structure is 330 ft (100.6 m) long and 86 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesUS 378
CrossesBeaver Dam Creek
Location7 MI W of Lexington
RouteU.S. Route 378
CountyLexington County
StateSouth Carolina
Coordinates34.01083, -81.36
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.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
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 geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.9 US tons
Inventory rating40.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 25 or greater
Structure length330 ft (100.6 m)
Longest span55 ft (16.8 m)
Deck width86 ft (26.2 m)
Roadway width83 ft (25.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,800 (2023)
Projected traffic26,880 by 2043
Trucks6%
Lanes on structure4
Traffic directionTwo-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 378 over Beaver Dam Creek built?

It was built in 2000, making it 25 years old in 2025.

What condition is US 378 over Beaver Dam Creek 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 October 2023.

How much traffic does US 378 over Beaver Dam Creek carry?

About 16,800 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is US 378 over Beaver Dam Creek?

The structure is 330 ft (100.6 m) long with a longest span of 55 ft (16.8 m) and a deck 86 ft wide.

Who owns US 378 over Beaver Dam Creek?

It is owned by the State Highway Agency.