US Bridges

Ramp on US 17 NB over US 52 Bus/Morrison DR

Good

Charleston County, South Carolina · Charleston City Limit · Structure no. 000000000009833

Built
2005
20 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
563 ft
4 main spans
Daily traffic
6,400
2017 count
Owner
State
State Highway Agency

About this bridge

Ramp on US 17 NB over US 52 Bus/Morrison DR is a prestressed concrete continuous stringer/multi-beam or girder carrying Ramp on US 17 NB over US 52 Bus/Morrison DR 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 6,400 vehicles a day, projected to reach 9,536 by 2037. The structure is 563 ft (171.5 m) long and 31 ft wide.

CarriesRamp on US 17 NB
CrossesUS 52 Bus/Morrison DR
LocationCharleston City Limit
RouteU.S. Route 17
Coordinates32.80404, -79.94078
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 inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.2 US tons
Inventory rating39.2 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 25 or greater
Structure length563 ft (171.5 m)
Longest span143 ft (43.6 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,400 (2017)
Projected traffic9,536 by 2037
Trucks0%
Lanes on structure1
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ramp on US 17 NB over US 52 Bus/Morrison DR built?

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

What condition is Ramp on US 17 NB over US 52 Bus/Morrison DR 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 May 2023.

How much traffic does Ramp on US 17 NB over US 52 Bus/Morrison DR carry?

About 6,400 vehicles per day (2017 count).

How long is Ramp on US 17 NB over US 52 Bus/Morrison DR?

The structure is 563 ft (171.5 m) long with a longest span of 143 ft (43.6 m) and a deck 31 ft wide.

Who owns Ramp on US 17 NB over US 52 Bus/Morrison DR?

It is owned by the State Highway Agency.