US Bridges

Johnson ST over Vardell Creek

Fair

Charleston County, South Carolina · Charleston · Structure no. 000000000006843

Built
1976
49 years old, rebuilt 2008
Condition
Fair
inspected August 2023
Type
Slab
Concrete
Length
90 ft
6 main spans
Daily traffic
75
2023 count
Owner
State
Other State Agency

About this bridge

Johnson ST over Vardell Creek is a concrete slab carrying Johnson ST over Vardell Creek in Charleston County, South Carolina. It was built in 1976 and reconstructed in 2008, so it is 49 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 75 vehicles a day, projected to reach 96 by 2043. The structure is 90 ft (27.4 m) long and 39 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesJohnson ST
CrossesVardell Creek
LocationCharleston
RouteCounty Highway 2
CountyCharleston County
StateSouth Carolina
Coordinates32.80158, -79.93362
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
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 inspectionAugust 2023
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 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 rating52.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans6
Design loadHL 93
Structure length90 ft (27.4 m)
Longest span15 ft (4.6 m)
Deck width39 ft (12 m)
Roadway width36 ft (11.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2023)
Projected traffic96 by 2043
Trucks0%
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

OwnerOther State Agency
Maintained byOther State 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 Johnson ST over Vardell Creek built?

It was built in 1976, making it 49 years old in 2025. It was reconstructed in 2008.

What condition is Johnson ST over Vardell 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 August 2023.

How much traffic does Johnson ST over Vardell Creek carry?

About 75 vehicles per day (2023 count).

How long is Johnson ST over Vardell Creek?

The structure is 90 ft (27.4 m) long with a longest span of 15 ft (4.6 m) and a deck 39 ft wide.

Who owns Johnson ST over Vardell Creek?

It is owned by the Other State Agency.