US Bridges

C-39-1548 over Trib Eighteenmile Creek

Good

Pickens County, South Carolina · 2.8 MI SW of Easley · Structure no. 000000000010247

Built
2008
17 years old
Condition
Good
inspected April 2024
Type
Slab
Prestressed Concrete
Length
40 ft
1 main span
Daily traffic
200
2023 count
Owner
County
County Highway Agency

About this bridge

C-39-1548 over Trib Eighteenmile Creek is a prestressed concrete slab carrying C-39-1548 over Trib Eighteenmile Creek in Pickens County, South Carolina. It was built in 2008, so it is 17 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 200 vehicles a day, roughly 5% of them trucks, projected to reach 256 by 2043. The structure is 40 ft (12.2 m) long and 28 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesC-39-1548
CrossesTrib Eighteenmile Creek
Location2.8 MI SW of Easley
RouteCounty Highway 1548
Coordinates34.80693, -82.64175
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.3 US tons
Inventory rating23.6 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length40 ft (12.2 m)
Longest span40 ft (12.2 m)
Deck width28 ft (8.4 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2023)
Projected traffic256 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$101,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was C-39-1548 over Trib Eighteenmile Creek built?

It was built in 2008, making it 17 years old in 2025.

What condition is C-39-1548 over Trib Eighteenmile 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 2024.

How much traffic does C-39-1548 over Trib Eighteenmile Creek carry?

About 200 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is C-39-1548 over Trib Eighteenmile Creek?

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-39-1548 over Trib Eighteenmile Creek?

It is owned by the County Highway Agency.