US Bridges

C-4-9797 over Trib to Brushy CR

FairPosted for load

Anderson County, South Carolina · 18.2 MI NE of Anderson · Structure no. 000000000004702

Built
1966
59 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
40 ft
1 main span
Daily traffic
125
2023 count
Owner
County
County Highway Agency

About this bridge

C-4-9797 over Trib to Brushy CR is a steel stringer/multi-beam or girder carrying C-4-9797 over Trib to Brushy CR in Anderson County, South Carolina. It was built in 1966, so it is 59 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 125 vehicles a day, roughly 5% of them trucks, projected to reach 160 by 2043. The structure is 40 ft (12.2 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesC-4-9797
CrossesTrib to Brushy CR
Location18.2 MI NE of Anderson
RouteCounty Highway 9797
Coordinates34.7599, -82.54041
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.3 US tons
Inventory rating22.8 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 10
Structure length40 ft (12.2 m)
Longest span40 ft (12.2 m)
Deck width28 ft (8.5 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic125 (2023)
Projected traffic160 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

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$75,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was C-4-9797 over Trib to Brushy CR built?

It was built in 1966, making it 59 years old in 2025.

What condition is C-4-9797 over Trib to Brushy CR 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 November 2024.

How much traffic does C-4-9797 over Trib to Brushy CR carry?

About 125 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is C-4-9797 over Trib to Brushy CR?

The structure is 40 ft (12.2 m) long with a longest span of 40 ft (12.2 m) and a deck 28 ft wide.

Who owns C-4-9797 over Trib to Brushy CR?

It is owned by the County Highway Agency.