US Bridges

Sc 403 over I-95

Fair

Florence County, South Carolina · 3MI S of Timmonsville · Structure no. 000000000005286

Built
1968
57 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
270 ft
5 main spans
Daily traffic
2,300
2023 count
Owner
State
State Highway Agency

About this bridge

Sc 403 over I-95 is a prestressed concrete stringer/multi-beam or girder carrying Sc 403 over I-95 in Florence 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 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 2,300 vehicles a day, roughly 14% of them trucks. The structure is 270 ft (82.3 m) long and 34 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesSc 403
CrossesI-95
Location3MI S of Timmonsville
RouteState Highway 403
Coordinates34.06848, -79.95101
Functional classRural Major Collector

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 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 alignment8: Equal to present desirable criteria
Operating rating73.5 US tons
Inventory rating41.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length270 ft (82.3 m)
Longest span65 ft (19.8 m)
Deck width34 ft (10.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,300 (2023)
Projected traffic—
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed98.8 mi (159 km)
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 Sc 403 over I-95 built?

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

What condition is Sc 403 over I-95 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 Sc 403 over I-95 carry?

About 2,300 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is Sc 403 over I-95?

The structure is 270 ft (82.3 m) long with a longest span of 65 ft (19.8 m) and a deck 34 ft wide.

Who owns Sc 403 over I-95?

It is owned by the State Highway Agency.