US Bridges

I-20 EB over Wateree River

Fair

Kershaw County, South Carolina · 2MI SW of Camden · Structure no. 000000000005779

Built
1970
55 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,500 ft
12 main spans
Daily traffic
22,100
2023 count
Owner
State
State Highway Agency

About this bridge

I-20 EB over Wateree River is a steel continuous stringer/multi-beam or girder carrying I-20 EB over Wateree River in Kershaw County, South Carolina. It was built in 1970, so it is 55 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 22,100 vehicles a day, roughly 16% of them trucks, projected to reach 35,360 by 2043. The structure is 1,500 ft (457.2 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-20 EB
CrossesWateree River
Location2MI SW of Camden
RouteInterstate 20
CountyKershaw County
StateSouth Carolina
Coordinates34.21738, -80.62964
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating26.8 US tons
Inventory rating20.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans12 (+10 approach)
Design loadHS 20 + Mod
Structure length1,500 ft (457.2 m)
Longest span140 ft (42.7 m)
Deck width43 ft (13.1 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,100 (2023)
Projected traffic35,360 by 2043
Trucks16%
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-20 EB over Wateree River built?

It was built in 1970, making it 55 years old in 2025.

What condition is I-20 EB over Wateree River 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 May 2023.

How much traffic does I-20 EB over Wateree River carry?

About 22,100 vehicles per day (2023 count), of which roughly 16% are trucks.

How long is I-20 EB over Wateree River?

The structure is 1,500 ft (457.2 m) long with a longest span of 140 ft (42.7 m) and a deck 43 ft wide.

Who owns I-20 EB over Wateree River?

It is owned by the State Highway Agency.