US Bridges

Sc 555 over Roberts Branch

Good

Richland County, South Carolina · 5 MI SE of Blythewood · Structure no. 000000000010073

Built
2012
13 years old
Condition
Good
inspected November 2023
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
13,900
2023 count
Owner
State
State Highway Agency

About this bridge

Sc 555 over Roberts Branch is a concrete culvert carrying Sc 555 over Roberts Branch in Richland County, South Carolina. It was built in 2012, so it is 13 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.

It carries about 13,900 vehicles a day, roughly 4% of them trucks, projected to reach 22,379 by 2043. The structure is 21 ft (6.4 m) long and 96 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesSc 555
CrossesRoberts Branch
Location5 MI SE of Blythewood
RouteState Highway 555
Coordinates34.14764, -80.95263
Functional classUrban Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.8 US tons
Inventory rating36.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length21 ft (6.4 m)
Longest span9 ft (2.7 m)
Deck width96 ft (29.3 m)
Roadway width94 ft (28.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,900 (2023)
Projected traffic22,379 by 2043
Trucks4%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Sc 555 over Roberts Branch built?

It was built in 2012, making it 13 years old in 2025.

What condition is Sc 555 over Roberts Branch 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 November 2023.

How much traffic does Sc 555 over Roberts Branch carry?

About 13,900 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Sc 555 over Roberts Branch?

The structure is 21 ft (6.4 m) long with a longest span of 9 ft (2.7 m) and a deck 96 ft wide.

Who owns Sc 555 over Roberts Branch?

It is owned by the State Highway Agency.