US Bridges

S-12-190 over Conrad Creek

Fair

Chester County, South Carolina · 7.9MI N Chester · Structure no. 000000000006965

Built
1977
48 years old
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
180 ft
6 main spans
Daily traffic
950
2023 count
Owner
State
State Highway Agency

About this bridge

S-12-190 over Conrad Creek is a prestressed concrete stringer/multi-beam or girder carrying S-12-190 over Conrad Creek in Chester County, South Carolina. It was built in 1977, so it is 48 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 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 950 vehicles a day, roughly 8% of them trucks, projected to reach 1,387 by 2043. The structure is 180 ft (54.9 m) long and 33 ft wide.

Location

Open in Google Maps
CarriesS-12-190
CrossesConrad Creek
Location7.9MI N Chester
RouteState Highway 190
CountyChester County
StateSouth Carolina
Coordinates34.81339, -81.18216
Functional classRural Major 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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.7 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans6
Design loadH 15
Structure length180 ft (54.9 m)
Longest span30 ft (9.1 m)
Deck width33 ft (10.2 m)
Roadway width32 ft (9.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic950 (2023)
Projected traffic1,387 by 2043
Trucks8%
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 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-12-190 over Conrad Creek built?

It was built in 1977, making it 48 years old in 2025.

What condition is S-12-190 over Conrad 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 December 2024.

How much traffic does S-12-190 over Conrad Creek carry?

About 950 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is S-12-190 over Conrad Creek?

The structure is 180 ft (54.9 m) long with a longest span of 30 ft (9.1 m) and a deck 33 ft wide.

Who owns S-12-190 over Conrad Creek?

It is owned by the State Highway Agency.