US Bridges

C-39-644 over Trib of Little Crow Ck

GoodPosted for load

Pickens County, South Carolina · 4.6MI N of Six Mile · Structure no. 000000000009456

Built
1999
26 years old
Condition
Good
inspected March 2024
Type
Slab
Prestressed Concrete
Length
40 ft
1 main span
Daily traffic
25
2023 count
Owner
County
County Highway Agency

About this bridge

C-39-644 over Trib of Little Crow Ck is a prestressed concrete slab carrying C-39-644 over Trib of Little Crow Ck in Pickens County, South Carolina. It was built in 1999, so it is 26 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. Its operating status is: posted for load restriction.

It carries about 25 vehicles a day, projected to reach 35 by 2043. The structure is 40 ft (12.2 m) long and 28 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesC-39-644
CrossesTrib of Little Crow Ck
Location4.6MI N of Six Mile
RouteCounty Highway 644
Coordinates34.87294, -82.83374
Functional classRural Minor 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 inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating34 US tons
Inventory rating16.8 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 width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2023)
Projected traffic35 by 2043
Trucks0%
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

OwnerCounty Highway Agency
Maintained byCounty 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 C-39-644 over Trib of Little Crow Ck built?

It was built in 1999, making it 26 years old in 2025.

What condition is C-39-644 over Trib of Little Crow Ck 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 March 2024.

How much traffic does C-39-644 over Trib of Little Crow Ck carry?

About 25 vehicles per day (2023 count).

How long is C-39-644 over Trib of Little Crow Ck?

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-39-644 over Trib of Little Crow Ck?

It is owned by the County Highway Agency.