US Bridges

S-1100 over Hembree Creek

Good

Anderson County, South Carolina · Anderson City Limits · Structure no. 000000000009831

Built
1988
37 years old
Condition
Good
inspected February 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
180 ft
2 main spans
Daily traffic
10,500
2023 count
Owner
State
State Highway Agency

About this bridge

S-1100 over Hembree Creek is a prestressed concrete stringer/multi-beam or girder carrying S-1100 over Hembree Creek in Anderson County, South Carolina. It was built in 1988, so it is 37 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 10,500 vehicles a day, roughly 2% of them trucks, projected to reach 12,915 by 2043. The structure is 180 ft (54.9 m) long and 48 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesS-1100
CrossesHembree Creek
LocationAnderson City Limits
RouteState Highway 1100
Coordinates34.5483, -82.68159
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2025
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.1 US tons
Inventory rating47.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20
Structure length180 ft (54.9 m)
Longest span60 ft (18.3 m)
Deck width48 ft (14.5 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,500 (2023)
Projected traffic12,915 by 2043
Trucks2%
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was S-1100 over Hembree Creek built?

It was built in 1988, making it 37 years old in 2025.

What condition is S-1100 over Hembree 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 February 2025.

How much traffic does S-1100 over Hembree Creek carry?

About 10,500 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is S-1100 over Hembree Creek?

The structure is 180 ft (54.9 m) long with a longest span of 60 ft (18.3 m) and a deck 48 ft wide.

Who owns S-1100 over Hembree Creek?

It is owned by the State Highway Agency.