US Bridges

S-23-316 over I-185

Good

Greenville County, South Carolina · South of Greenville · Structure no. 000000000009636

Built
2001
24 years old
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
175 ft
2 main spans
Daily traffic
1,950
2023 count
Owner
State
State Highway Agency

About this bridge

S-23-316 over I-185 is a prestressed concrete continuous stringer/multi-beam or girder carrying S-23-316 over I-185 in Greenville County, South Carolina. It was built in 2001, so it is 24 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 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 1,950 vehicles a day, roughly 3% of them trucks, projected to reach 2,984 by 2043. The structure is 175 ft (53.3 m) long and 39 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesS-23-316
CrossesI-185
LocationSouth of Greenville
RouteState Highway 316
Coordinates34.74854, -82.30414
Functional classUrban Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.7 US tons
Inventory rating25.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length175 ft (53.3 m)
Longest span88 ft (26.8 m)
Deck width39 ft (11.9 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,950 (2023)
Projected traffic2,984 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was S-23-316 over I-185 built?

It was built in 2001, making it 24 years old in 2025.

What condition is S-23-316 over I-185 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 July 2023.

How much traffic does S-23-316 over I-185 carry?

About 1,950 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is S-23-316 over I-185?

The structure is 175 ft (53.3 m) long with a longest span of 88 ft (26.8 m) and a deck 39 ft wide.

Who owns S-23-316 over I-185?

It is owned by the State Highway Agency.