US Bridges

Salem Road over Cobbs Pond

GoodPosted for load

Richland County, South Carolina · Range 12F · Structure no. DAPTRAJAC0N0531

Built
2008
17 years old
Condition
Good
inspected May 2021
Type
Slab
Concrete
Length
40 ft
1 main span
Daily traffic
80
2019 count
Owner
Federal
Army

About this bridge

Salem Road over Cobbs Pond is a concrete slab carrying Salem Road over Cobbs Pond in Richland 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 7 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 80 vehicles a day, roughly 15% of them trucks, projected to reach 240 by 2043. The structure is 40 ft (12.2 m) long and 24 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesSalem Road
CrossesCobbs Pond
LocationRange 12F
CountyRichland County
StateSouth Carolina
Coordinates34.07531, -80.82106
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2021
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating107.1 US tons
Inventory rating84.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length40 ft (12.2 m)
Longest span40 ft (12.2 m)
Deck width24 ft (7.4 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic80 (2019)
Projected traffic240 by 2043
Trucks15%
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

OwnerArmy
Maintained byArmy
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$2,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Salem Road over Cobbs Pond built?

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

What condition is Salem Road over Cobbs Pond 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 May 2021.

How much traffic does Salem Road over Cobbs Pond carry?

About 80 vehicles per day (2019 count), of which roughly 15% are trucks.

How long is Salem Road over Cobbs Pond?

The structure is 40 ft (12.2 m) long with a longest span of 40 ft (12.2 m) and a deck 24 ft wide.

Who owns Salem Road over Cobbs Pond?

It is owned by the Army.