US Bridges

S-10-98 over Wando River

Good

Charleston County, South Carolina · 16.3 MI E Chas · Structure no. 000000000005236

Built
2011
14 years old
Condition
Good
inspected July 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
150 ft
3 main spans
Daily traffic
350
2023 count
Owner
State
State Highway Agency

About this bridge

S-10-98 over Wando River is a prestressed concrete box beam or girders - multiple carrying S-10-98 over Wando River in Charleston County, South Carolina. It was built in 2011, so it is 14 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 350 vehicles a day, roughly 5% of them trucks, projected to reach 448 by 2043. The structure is 150 ft (45.7 m) long and 36 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesS-10-98
CrossesWando River
Location16.3 MI E Chas
RouteState Highway 98
Coordinates32.94531, -79.72565
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 protection8 Very GoodNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.4 US tons
Inventory rating37.5 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHL 93
Structure length150 ft (45.7 m)
Longest span50 ft (15.2 m)
Deck width36 ft (11 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic350 (2023)
Projected traffic448 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was S-10-98 over Wando River built?

It was built in 2011, making it 14 years old in 2025.

What condition is S-10-98 over Wando River 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 July 2023.

How much traffic does S-10-98 over Wando River carry?

About 350 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is S-10-98 over Wando River?

The structure is 150 ft (45.7 m) long with a longest span of 50 ft (15.2 m) and a deck 36 ft wide.

Who owns S-10-98 over Wando River?

It is owned by the State Highway Agency.