US Bridges

S-4-104 over Big Generostee Creek

Good

Anderson County, South Carolina · 5.6MI SW Anderson · Structure no. 000000000009301

Built
1998
27 years old
Condition
Good
inspected January 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
157 ft
2 main spans
Daily traffic
950
2023 count
Owner
State
State Highway Agency

About this bridge

S-4-104 over Big Generostee Creek is a prestressed concrete stringer/multi-beam or girder carrying S-4-104 over Big Generostee Creek in Anderson County, South Carolina. It was built in 1998, so it is 27 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 950 vehicles a day, roughly 6% of them trucks, projected to reach 1,169 by 2043. The structure is 157 ft (47.9 m) long and 37 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesS-4-104
CrossesBig Generostee Creek
Location5.6MI SW Anderson
RouteState Highway 104
Coordinates34.45326, -82.73177
Functional classRural Major 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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 rating62.2 US tons
Inventory rating34.6 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2 (+1 approach)
Design loadHS 20
Structure length157 ft (47.9 m)
Longest span62 ft (18.9 m)
Deck width37 ft (11.2 m)
Roadway width35 ft (10.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic950 (2023)
Projected traffic1,169 by 2043
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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-4-104 over Big Generostee Creek built?

It was built in 1998, making it 27 years old in 2025.

What condition is S-4-104 over Big Generostee 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 January 2025.

How much traffic does S-4-104 over Big Generostee Creek carry?

About 950 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is S-4-104 over Big Generostee Creek?

The structure is 157 ft (47.9 m) long with a longest span of 62 ft (18.9 m) and a deck 37 ft wide.

Who owns S-4-104 over Big Generostee Creek?

It is owned by the State Highway Agency.