US Bridges

S-40-52 over I-20

Fair

Richland County, South Carolina · 3MI S Pontiac · Structure no. 000000000004655

Built
1965
60 years old, rebuilt 1987
Condition
Fair
inspected February 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
339 ft
6 main spans
Daily traffic
9,500
2023 count
Owner
State
State Highway Agency

About this bridge

S-40-52 over I-20 is a prestressed concrete stringer/multi-beam or girder carrying S-40-52 over I-20 in Richland County, South Carolina. It was built in 1965 and reconstructed in 1987, so it is 60 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 9,500 vehicles a day, roughly 4% of them trucks, projected to reach 14,915 by 2043. The structure is 339 ft (103.3 m) long and 79 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesS-40-52
CrossesI-20
Location3MI S Pontiac
RouteState Highway 52
CountyRichland County
StateSouth Carolina
Coordinates34.09483, -80.85599
Functional classUrban Other Principal Arterial

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.
Last inspectionFebruary 2025
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 geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.9 US tons
Inventory rating49.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans6
Design loadH 15
Structure length339 ft (103.3 m)
Longest span61 ft (18.6 m)
Deck width79 ft (24 m)
Roadway width66 ft (20.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,500 (2023)
Projected traffic14,915 by 2043
Trucks4%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was S-40-52 over I-20 built?

It was built in 1965, making it 60 years old in 2025. It was reconstructed in 1987.

What condition is S-40-52 over I-20 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 February 2025.

How much traffic does S-40-52 over I-20 carry?

About 9,500 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is S-40-52 over I-20?

The structure is 339 ft (103.3 m) long with a longest span of 61 ft (18.6 m) and a deck 79 ft wide.

Who owns S-40-52 over I-20?

It is owned by the State Highway Agency.