US Bridges

I-95 NB over Sparrow Swamp

Fair

Florence County, South Carolina · 4.5MI SW of Timmonsville · Structure no. 000000000005042

Built
1967
58 years old
Condition
Fair
inspected March 2024
Type
Tee Beam
Concrete
Length
149 ft
5 main spans
Daily traffic
18,000
2023 count
Owner
State
State Highway Agency

About this bridge

I-95 NB over Sparrow Swamp is a concrete tee beam carrying I-95 NB over Sparrow Swamp in Florence County, South Carolina. It was built in 1967, so it is 58 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 18,000 vehicles a day, roughly 21% of them trucks, projected to reach 25,380 by 2043. The structure is 149 ft (45.4 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-95 NB
CrossesSparrow Swamp
Location4.5MI SW of Timmonsville
RouteInterstate 95
CountyFlorence County
StateSouth Carolina
Coordinates34.07597, -79.94336
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.2 US tons
Inventory rating44.6 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length149 ft (45.4 m)
Longest span30 ft (9.1 m)
Deck width43 ft (13.1 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,000 (2023)
Projected traffic25,380 by 2043
Trucks21%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was I-95 NB over Sparrow Swamp built?

It was built in 1967, making it 58 years old in 2025.

What condition is I-95 NB over Sparrow Swamp 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 March 2024.

How much traffic does I-95 NB over Sparrow Swamp carry?

About 18,000 vehicles per day (2023 count), of which roughly 21% are trucks.

How long is I-95 NB over Sparrow Swamp?

The structure is 149 ft (45.4 m) long with a longest span of 30 ft (9.1 m) and a deck 43 ft wide.

Who owns I-95 NB over Sparrow Swamp?

It is owned by the State Highway Agency.