US Bridges

S-10-2418 over Unnamed Strteam

Fair

Charleston County, South Carolina · N. Charleston/Off Fain ST · Structure no. 000000000008625

Built
1993
32 years old
Condition
Fair
inspected August 2023
Type
Slab
Concrete
Length
45 ft
3 main spans
Daily traffic
375
2023 count
Owner
State
State Highway Agency

About this bridge

S-10-2418 over Unnamed Strteam is a concrete slab carrying S-10-2418 over Unnamed Strteam in Charleston County, South Carolina. It was built in 1993, so it is 32 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 375 vehicles a day, roughly 5% of them trucks, projected to reach 480 by 2043. The structure is 45 ft (13.7 m) long and 38 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesS-10-2418
CrossesUnnamed Strteam
LocationN. Charleston/Off Fain ST
RouteState Highway 2418
Coordinates32.90842, -80.03034
Functional classUrban Local

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 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 geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.6 US tons
Inventory rating41.4 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length45 ft (13.7 m)
Longest span15 ft (4.6 m)
Deck width38 ft (11.7 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic375 (2023)
Projected traffic480 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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-10-2418 over Unnamed Strteam built?

It was built in 1993, making it 32 years old in 2025.

What condition is S-10-2418 over Unnamed Strteam 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 August 2023.

How much traffic does S-10-2418 over Unnamed Strteam carry?

About 375 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is S-10-2418 over Unnamed Strteam?

The structure is 45 ft (13.7 m) long with a longest span of 15 ft (4.6 m) and a deck 38 ft wide.

Who owns S-10-2418 over Unnamed Strteam?

It is owned by the State Highway Agency.