US Bridges

S-17-51 over Unnamed Stream

Good

Dillon County, South Carolina · Latta · Structure no. 000000000010968

Built
2019
6 years old
Condition
Good
inspected August 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
70 ft
1 main span
Daily traffic
1,250
2024 count
Owner
State
State Highway Agency

About this bridge

S-17-51 over Unnamed Stream is a prestressed concrete box beam or girders - multiple carrying S-17-51 over Unnamed Stream in Dillon County, South Carolina. It was built in 2019, so it is 6 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 1,250 vehicles a day, roughly 4% of them trucks, projected to reach 1,825 by 2044. The structure is 70 ft (21.3 m) long and 39 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesS-17-51
CrossesUnnamed Stream
LocationLatta
RouteState Highway 51
Coordinates34.33486, -79.42052
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 protection8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating70.8 US tons
Inventory rating53.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length70 ft (21.3 m)
Longest span70 ft (21.3 m)
Deck width39 ft (11.9 m)
Roadway width36 ft (11.1 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic1,250 (2024)
Projected traffic1,825 by 2044
Trucks4%
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

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-17-51 over Unnamed Stream built?

It was built in 2019, making it 6 years old in 2025.

What condition is S-17-51 over Unnamed Stream 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 August 2024.

How much traffic does S-17-51 over Unnamed Stream carry?

About 1,250 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is S-17-51 over Unnamed Stream?

The structure is 70 ft (21.3 m) long with a longest span of 70 ft (21.3 m) and a deck 39 ft wide.

Who owns S-17-51 over Unnamed Stream?

It is owned by the State Highway Agency.