US Bridges

S-21-1134 over Black Creek

Good

Florence County, South Carolina · 3.5 MI North of Florence · Structure no. 000000000009174

Built
1997
28 years old
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
180 ft
2 main spans
Daily traffic
1,250
2023 count
Owner
State
State Highway Agency

About this bridge

S-21-1134 over Black Creek is a steel continuous stringer/multi-beam or girder carrying S-21-1134 over Black Creek in Florence County, South Carolina. It was built in 1997, so it is 28 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 1,250 vehicles a day, roughly 5% of them trucks, projected to reach 1,600 by 2043. The structure is 180 ft (54.9 m) long and 37 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesS-21-1134
CrossesBlack Creek
Location3.5 MI North of Florence
RouteState Highway 1134
Coordinates34.25068, -79.75229
Functional classUrban Local

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 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 rating65.4 US tons
Inventory rating50.4 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+1 approach)
Design loadHS 25 or greater
Structure length180 ft (54.9 m)
Longest span75 ft (22.9 m)
Deck width37 ft (11.2 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,250 (2023)
Projected traffic1,600 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-21-1134 over Black Creek built?

It was built in 1997, making it 28 years old in 2025.

What condition is S-21-1134 over Black 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 April 2023.

How much traffic does S-21-1134 over Black Creek carry?

About 1,250 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is S-21-1134 over Black Creek?

The structure is 180 ft (54.9 m) long with a longest span of 75 ft (22.9 m) and a deck 37 ft wide.

Who owns S-21-1134 over Black Creek?

It is owned by the State Highway Agency.