US Bridges

S-40-1795 over I-20

Fair

Richland County, South Carolina · 4MI SW Pontiac · Structure no. 000000000004660

Built
1965
60 years old
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
236 ft
4 main spans
Daily traffic
4,200
2023 count
Owner
State
State Highway Agency

About this bridge

S-40-1795 over I-20 is a prestressed concrete stringer/multi-beam or girder carrying S-40-1795 over I-20 in Richland County, South Carolina. It was built in 1965, 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 4,200 vehicles a day, roughly 5% of them trucks, projected to reach 5,376 by 2043. The structure is 236 ft (71.9 m) long and 30 ft wide.

Location

Open in Google Maps
CarriesS-40-1795
CrossesI-20
Location4MI SW Pontiac
RouteState Highway 1795
CountyRichland County
StateSouth Carolina
Coordinates34.08391, -80.88232
Functional classUrban Local

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
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 geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.2 US tons
Inventory rating31.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 15
Structure length236 ft (71.9 m)
Longest span60 ft (18.3 m)
Deck width30 ft (9.1 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,200 (2023)
Projected traffic5,376 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$653,000 (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was S-40-1795 over I-20 built?

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

What condition is S-40-1795 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 2023.

How much traffic does S-40-1795 over I-20 carry?

About 4,200 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is S-40-1795 over I-20?

The structure is 236 ft (71.9 m) long with a longest span of 60 ft (18.3 m) and a deck 30 ft wide.

Who owns S-40-1795 over I-20?

It is owned by the State Highway Agency.