US Bridges

US 278/INDPNDCBLVD over Unnamed Stream

Good

Jasper County, South Carolina · 2.4 MI NW of Okatie · Structure no. 000000000010717

Built
1986
39 years old
Condition
Good
inspected January 2024
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
32,600
2023 count
Owner
State
State Highway Agency

About this bridge

US 278/INDPNDCBLVD over Unnamed Stream is a concrete culvert carrying US 278/INDPNDCBLVD over Unnamed Stream in Jasper County, South Carolina. It was built in 1986, so it is 39 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 32,600 vehicles a day, roughly 7% of them trucks, projected to reach 39,120 by 2043. The structure is 21 ft (6.3 m) long and 134 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesUS 278/INDPNDCBLVD
CrossesUnnamed Stream
Location2.4 MI NW of Okatie
RouteU.S. Route 278
Coordinates32.31028, -80.98917
Functional classRural Principal Arterial - Other

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 inspectionJanuary 2024
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.5 US tons
Inventory rating37.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length21 ft (6.3 m)
Longest span10 ft (3 m)
Deck width134 ft (40.8 m)
Roadway width117 ft (35.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic32,600 (2023)
Projected traffic39,120 by 2043
Trucks7%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 278/INDPNDCBLVD over Unnamed Stream built?

It was built in 1986, making it 39 years old in 2025.

What condition is US 278/INDPNDCBLVD 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 January 2024.

How much traffic does US 278/INDPNDCBLVD over Unnamed Stream carry?

About 32,600 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is US 278/INDPNDCBLVD over Unnamed Stream?

The structure is 21 ft (6.3 m) long with a longest span of 10 ft (3 m) and a deck 134 ft wide.

Who owns US 278/INDPNDCBLVD over Unnamed Stream?

It is owned by the State Highway Agency.