US Bridges

I-526 Ramp over Ramp on I-526 EB

Fair

Charleston County, South Carolina · Near Mt Pleasant · Structure no. 000000000007428

Built
1981
44 years old
Condition
Fair
inspected July 2024
Type
Slab
Concrete Continuous
Length
264 ft
8 main spans
Daily traffic
5,400
2023 count
Owner
State
State Highway Agency

About this bridge

I-526 Ramp over Ramp on I-526 EB is a concrete continuous slab carrying I-526 Ramp over Ramp on I-526 EB in Charleston County, South Carolina. It was built in 1981, so it is 44 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 5,400 vehicles a day, roughly 9% of them trucks, projected to reach 12,366 by 2043. The structure is 264 ft (80.5 m) long and 35 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-526 Ramp
CrossesRamp on I-526 EB
LocationNear Mt Pleasant
RouteInterstate 526
CountyCharleston County
StateSouth Carolina
Coordinates32.83788, -79.85983
Functional classUrban Principal Arterial - Interstate

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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.3 US tons
Inventory rating45.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans8
Design loadHS 20
Structure length264 ft (80.5 m)
Longest span35 ft (10.7 m)
Deck width35 ft (10.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,400 (2023)
Projected traffic12,366 by 2043
Trucks9%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 I-526 Ramp over Ramp on I-526 EB built?

It was built in 1981, making it 44 years old in 2025.

What condition is I-526 Ramp over Ramp on I-526 EB 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 July 2024.

How much traffic does I-526 Ramp over Ramp on I-526 EB carry?

About 5,400 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is I-526 Ramp over Ramp on I-526 EB?

The structure is 264 ft (80.5 m) long with a longest span of 35 ft (10.7 m) and a deck 35 ft wide.

Who owns I-526 Ramp over Ramp on I-526 EB?

It is owned by the State Highway Agency.