US Bridges

S-23-145 over Graze Creek

Fair

Greenville County, South Carolina · 4.2MI N Simpsonville · Structure no. 000000000008264

Built
1989
36 years old
Condition
Fair
inspected July 2023
Type
Slab
Prestressed Concrete
Length
90 ft
3 main spans
Daily traffic
10,300
2023 count
Owner
State
State Highway Agency

About this bridge

S-23-145 over Graze Creek is a prestressed concrete slab carrying S-23-145 over Graze Creek in Greenville 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 fair condition with a lowest component rating of 6 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 10,300 vehicles a day, roughly 3% of them trucks, projected to reach 15,759 by 2043. The structure is 90 ft (27.4 m) long and 38 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesS-23-145
CrossesGraze Creek
Location4.2MI N Simpsonville
RouteState Highway 145
CountyGreenville County
StateSouth Carolina
Coordinates34.78838, -82.21831
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating98.2 US tons
Inventory rating53.9 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length90 ft (27.4 m)
Longest span30 ft (9.1 m)
Deck width38 ft (11.7 m)
Roadway width34 ft (10.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,300 (2023)
Projected traffic15,759 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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-23-145 over Graze Creek built?

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

What condition is S-23-145 over Graze Creek 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 July 2023.

How much traffic does S-23-145 over Graze Creek carry?

About 10,300 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is S-23-145 over Graze Creek?

The structure is 90 ft (27.4 m) long with a longest span of 30 ft (9.1 m) and a deck 38 ft wide.

Who owns S-23-145 over Graze Creek?

It is owned by the State Highway Agency.