US Bridges

S-10-1846 over Oyster House Creek

Good

Charleston County, South Carolina · 3 MI S Ravenel · Structure no. 000000000006240

Built
2006
19 years old
Condition
Good
inspected August 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
90 ft
1 main span
Daily traffic
275
2023 count
Owner
State
State Highway Agency

About this bridge

S-10-1846 over Oyster House Creek is a prestressed concrete box beam or girders - multiple carrying S-10-1846 over Oyster House Creek in Charleston County, South Carolina. It was built in 2006, so it is 19 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 275 vehicles a day, roughly 5% of them trucks, projected to reach 352 by 2043. The structure is 90 ft (27.4 m) long and 36 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesS-10-1846
CrossesOyster House Creek
Location3 MI S Ravenel
RouteState Highway 1846
Coordinates32.72201, -80.23216
Functional classRural Local

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 protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating81.5 US tons
Inventory rating42.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1 (+1 approach)
Design loadHS 20
Structure length90 ft (27.4 m)
Longest span60 ft (18.3 m)
Deck width36 ft (11 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic275 (2023)
Projected traffic352 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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-10-1846 over Oyster House Creek built?

It was built in 2006, making it 19 years old in 2025.

What condition is S-10-1846 over Oyster House Creek 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 August 2023.

How much traffic does S-10-1846 over Oyster House Creek carry?

About 275 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is S-10-1846 over Oyster House Creek?

The structure is 90 ft (27.4 m) long with a longest span of 60 ft (18.3 m) and a deck 36 ft wide.

Who owns S-10-1846 over Oyster House Creek?

It is owned by the State Highway Agency.