US Bridges

Ramp on US 17 NB over US 17 & Access Road

Fair

Charleston County, South Carolina · In Charleston · Structure no. 000000000003827

Built
1962
63 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
256 ft
4 main spans
Daily traffic
11,908
2014 count
Owner
State
State Highway Agency

About this bridge

Ramp on US 17 NB over US 17 & Access Road is a steel stringer/multi-beam or girder carrying Ramp on US 17 NB over US 17 & Access Road in Charleston County, South Carolina. It was built in 1962, so it is 63 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 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 11,908 vehicles a day, projected to reach 19,291 by 2034. The structure is 256 ft (77.9 m) long and 35 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesRamp on US 17 NB
CrossesUS 17 & Access Road
LocationIn Charleston
RouteU.S. Route 5028
CountyCharleston County
StateSouth Carolina
Coordinates32.7806, -79.96752
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating71.4 US tons
Inventory rating55 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length256 ft (77.9 m)
Longest span80 ft (24.4 m)
Deck width35 ft (10.7 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,908 (2014)
Projected traffic19,291 by 2034
Trucks0%
Lanes on structure1
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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$885,000 (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ramp on US 17 NB over US 17 & Access Road built?

It was built in 1962, making it 63 years old in 2025.

What condition is Ramp on US 17 NB over US 17 & Access Road 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 June 2024.

How much traffic does Ramp on US 17 NB over US 17 & Access Road carry?

About 11,908 vehicles per day (2014 count).

How long is Ramp on US 17 NB over US 17 & Access Road?

The structure is 256 ft (77.9 m) long with a longest span of 80 ft (24.4 m) and a deck 35 ft wide.

Who owns Ramp on US 17 NB over US 17 & Access Road?

It is owned by the State Highway Agency.