US Bridges

I-95 NB over US 521-301 Con/Scl RR

Fair

Clarendon County, South Carolina · 3MI N of Manning · Structure no. 000000000005252

Built
1968
57 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
348 ft
6 main spans
Daily traffic
18,100
2023 count
Owner
State
State Highway Agency

About this bridge

I-95 NB over US 521-301 Con/Scl RR is a prestressed concrete stringer/multi-beam or girder carrying I-95 NB over US 521-301 Con/Scl RR in Clarendon County, South Carolina. It was built in 1968, so it is 57 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 18,100 vehicles a day, roughly 22% of them trucks, projected to reach 31,675 by 2043. The structure is 348 ft (106.1 m) long and 49 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesI-95 NB
CrossesUS 521-301 Con/Scl RR
Location3MI N of Manning
RouteInterstate 95
CountyClarendon County
StateSouth Carolina
Coordinates33.73985, -80.2084
Functional classRural 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating75.7 US tons
Inventory rating50 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length348 ft (106.1 m)
Longest span66 ft (20.1 m)
Deck width49 ft (14.9 m)
Roadway width45 ft (13.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,100 (2023)
Projected traffic31,675 by 2043
Trucks22%
Lanes on structure3
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway and railroad
Detour if closed98.8 mi (159 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-95 NB over US 521-301 Con/Scl RR built?

It was built in 1968, making it 57 years old in 2025.

What condition is I-95 NB over US 521-301 Con/Scl RR 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 October 2023.

How much traffic does I-95 NB over US 521-301 Con/Scl RR carry?

About 18,100 vehicles per day (2023 count), of which roughly 22% are trucks.

How long is I-95 NB over US 521-301 Con/Scl RR?

The structure is 348 ft (106.1 m) long with a longest span of 66 ft (20.1 m) and a deck 49 ft wide.

Who owns I-95 NB over US 521-301 Con/Scl RR?

It is owned by the State Highway Agency.