US Bridges

S-376/ALLIGATOR RD over Alligator Creek

Fair

Berkeley County, South Carolina · 9.5 MI SE Moncks Corner · Structure no. 000000000003823

Built
1962
63 years old
Condition
Fair
inspected November 2024
Type
Slab
Concrete
Length
45 ft
3 main spans
Daily traffic
150
2023 count
Owner
State
State Highway Agency

About this bridge

S-376/ALLIGATOR RD over Alligator Creek is a concrete slab carrying S-376/ALLIGATOR RD over Alligator Creek in Berkeley County, South Carolina. It was built in 1962, so it is 63 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 5 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 150 vehicles a day, roughly 21% of them trucks, projected to reach 209 by 2043. The structure is 45 ft (13.7 m) long and 28 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesS-376/ALLIGATOR RD
CrossesAlligator Creek
Location9.5 MI SE Moncks Corner
RouteState Highway 376
CountyBerkeley County
StateSouth Carolina
Coordinates33.14531, -79.85795
Functional classRural Minor Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.2 US tons
Inventory rating28.2 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadH 15
Structure length45 ft (13.7 m)
Longest span15 ft (4.6 m)
Deck width28 ft (8.4 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2023)
Projected traffic209 by 2043
Trucks21%
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-376/ALLIGATOR RD over Alligator Creek built?

It was built in 1962, making it 63 years old in 2025.

What condition is S-376/ALLIGATOR RD over Alligator 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 November 2024.

How much traffic does S-376/ALLIGATOR RD over Alligator Creek carry?

About 150 vehicles per day (2023 count), of which roughly 21% are trucks.

How long is S-376/ALLIGATOR RD over Alligator Creek?

The structure is 45 ft (13.7 m) long with a longest span of 15 ft (4.6 m) and a deck 28 ft wide.

Who owns S-376/ALLIGATOR RD over Alligator Creek?

It is owned by the State Highway Agency.