US Bridges

S-37-20 over Choestoea Creek

Good

Oconee County, South Carolina · 2.5 MI S. Westminster · Structure no. 000000000008289

Built
1989
36 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
165 ft
3 main spans
Daily traffic
450
2023 count
Owner
State
State Highway Agency

About this bridge

S-37-20 over Choestoea Creek is a prestressed concrete stringer/multi-beam or girder carrying S-37-20 over Choestoea Creek in Oconee County, South Carolina. It was built in 1989, so it is 36 years old, younger 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 450 vehicles a day, roughly 5% of them trucks, projected to reach 657 by 2043. The structure is 165 ft (50.3 m) long and 38 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesS-37-20
CrossesChoestoea Creek
Location2.5 MI S. Westminster
RouteState Highway 20
Coordinates34.62766, -83.10941
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating76.4 US tons
Inventory rating54.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length165 ft (50.3 m)
Longest span55 ft (16.8 m)
Deck width38 ft (11.5 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic450 (2023)
Projected traffic657 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

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 S-37-20 over Choestoea Creek built?

It was built in 1989, making it 36 years old in 2025.

What condition is S-37-20 over Choestoea Creek 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 March 2023.

How much traffic does S-37-20 over Choestoea Creek carry?

About 450 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is S-37-20 over Choestoea Creek?

The structure is 165 ft (50.3 m) long with a longest span of 55 ft (16.8 m) and a deck 38 ft wide.

Who owns S-37-20 over Choestoea Creek?

It is owned by the State Highway Agency.