US Bridges

I-20 WB over S.C.L. RR

Fair

Lee County, South Carolina · 1MI S of Bishopville · Structure no. 000000000006146

Built
1972
53 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
215 ft
3 main spans
Daily traffic
14,750
2023 count
Owner
State
State Highway Agency

About this bridge

I-20 WB over S.C.L. RR is a steel stringer/multi-beam or girder carrying I-20 WB over S.C.L. RR in Lee County, South Carolina. It was built in 1972, so it is 53 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 14,750 vehicles a day, roughly 16% of them trucks, projected to reach 23,600 by 2024. The structure is 215 ft (65.5 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-20 WB
CrossesS.C.L. RR
Location1MI S of Bishopville
RouteInterstate 20
CountyLee County
StateSouth Carolina
Coordinates34.19111, -80.25694
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
Deck7 GoodSome minor problems.
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.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.2 US tons
Inventory rating48.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length215 ft (65.5 m)
Longest span80 ft (24.4 m)
Deck width43 ft (13 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,750 (2023)
Projected traffic23,600 by 2024
Trucks16%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-20 WB over S.C.L. RR built?

It was built in 1972, making it 53 years old in 2025.

What condition is I-20 WB over S.C.L. 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 August 2024.

How much traffic does I-20 WB over S.C.L. RR carry?

About 14,750 vehicles per day (2023 count), of which roughly 16% are trucks.

How long is I-20 WB over S.C.L. RR?

The structure is 215 ft (65.5 m) long with a longest span of 80 ft (24.4 m) and a deck 43 ft wide.

Who owns I-20 WB over S.C.L. RR?

It is owned by the State Highway Agency.