US Bridges

S-2-33 over Gregg Canal

Fair

Aiken County, South Carolina · At Granitville · Structure no. 000000000006211

Built
1973
52 years old
Condition
Fair
inspected January 2025
Type
Slab
Concrete
Length
60 ft
4 main spans
Daily traffic
11,900
2023 count
Owner
State
State Highway Agency

About this bridge

S-2-33 over Gregg Canal is a concrete slab carrying S-2-33 over Gregg Canal in Aiken County, South Carolina. It was built in 1973, so it is 52 years old, older 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 11,900 vehicles a day, roughly 5% of them trucks, projected to reach 15,589 by 2043. The structure is 60 ft (18.3 m) long and 33 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesS-2-33
CrossesGregg Canal
LocationAt Granitville
RouteState Highway 33
CountyAiken County
StateSouth Carolina
Coordinates33.5694, -81.80713
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating36 US tons
Inventory rating21.4 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 10
Structure length60 ft (18.3 m)
Longest span15 ft (4.6 m)
Deck width33 ft (10.1 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,900 (2023)
Projected traffic15,589 by 2043
Trucks5%
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$486,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was S-2-33 over Gregg Canal built?

It was built in 1973, making it 52 years old in 2025.

What condition is S-2-33 over Gregg Canal 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 January 2025.

How much traffic does S-2-33 over Gregg Canal carry?

About 11,900 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is S-2-33 over Gregg Canal?

The structure is 60 ft (18.3 m) long with a longest span of 15 ft (4.6 m) and a deck 33 ft wide.

Who owns S-2-33 over Gregg Canal?

It is owned by the State Highway Agency.