US Bridges

S-20-88 over Winnsboro Branch

Good

Fairfield County, South Carolina · Town of Winnsboro · Structure no. 000000000001704

Built
1950
75 years old, rebuilt 1970
Condition
Good
inspected May 2023
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
2,500
2023 count
Owner
State
State Highway Agency

About this bridge

S-20-88 over Winnsboro Branch is a concrete culvert carrying S-20-88 over Winnsboro Branch in Fairfield County, South Carolina. It was built in 1950 and reconstructed in 1970, so it is 75 years old, older than the South Carolina average of 48 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,500 vehicles a day, roughly 3% of them trucks, projected to reach 3,200 by 2043. The structure is 21 ft (6.3 m) long and 74 ft wide.

CarriesS-20-88
CrossesWinnsboro Branch
LocationTown of Winnsboro
RouteState Highway 88
Coordinates34.37455, -81.09443
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating46.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 15
Structure length21 ft (6.3 m)
Longest span10 ft (3 m)
Deck width74 ft (22.6 m)
Roadway width46 ft (14 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,500 (2023)
Projected traffic3,200 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was S-20-88 over Winnsboro Branch built?

It was built in 1950, making it 75 years old in 2025. It was reconstructed in 1970.

What condition is S-20-88 over Winnsboro Branch in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2023.

How much traffic does S-20-88 over Winnsboro Branch carry?

About 2,500 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is S-20-88 over Winnsboro Branch?

The structure is 21 ft (6.3 m) long with a longest span of 10 ft (3 m) and a deck 74 ft wide.

Who owns S-20-88 over Winnsboro Branch?

It is owned by the State Highway Agency.