US Bridges

Ramp Off I-26 EB over I-26&RAMPSON US 17&US 52

Good

Charleston County, South Carolina · Charleston City Limits · Structure no. 000000000009826

Built
2005
20 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
4,038 ft
8 main spans
Daily traffic
13,000
2023 count
Owner
State
State Highway Agency

About this bridge

Ramp Off I-26 EB over I-26&RAMPSON US 17&US 52 is a steel continuous stringer/multi-beam or girder carrying Ramp Off I-26 EB over I-26&RAMPSON US 17&US 52 in Charleston County, South Carolina. It was built in 2005, so it is 20 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 13,000 vehicles a day, roughly 9% of them trucks, projected to reach 19,370 by 2043. The structure is 4,038 ft (1,230.8 m) long and 39 ft wide.

CarriesRamp Off I-26 EB
CrossesI-26&RAMPSON US 17&US 52
LocationCharleston City Limits
RouteU.S. Route 17
Coordinates32.80327, -79.94662
Functional classUrban Other Principal Arterial

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.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating21.1 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans8 (+20 approach)
Design loadHS 25 or greater
Structure length4,038 ft (1,230.8 m)
Longest span213 ft (64.9 m)
Deck width39 ft (11.8 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,000 (2023)
Projected traffic19,370 by 2043
Trucks9%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$9.2 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ramp Off I-26 EB over I-26&RAMPSON US 17&US 52 built?

It was built in 2005, making it 20 years old in 2025.

What condition is Ramp Off I-26 EB over I-26&RAMPSON US 17&US 52 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 March 2023.

How much traffic does Ramp Off I-26 EB over I-26&RAMPSON US 17&US 52 carry?

About 13,000 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is Ramp Off I-26 EB over I-26&RAMPSON US 17&US 52?

The structure is 4,038 ft (1,230.8 m) long with a longest span of 213 ft (64.9 m) and a deck 39 ft wide.

Who owns Ramp Off I-26 EB over I-26&RAMPSON US 17&US 52?

It is owned by the State Highway Agency.