US Bridges

L-6794/WEBER Blvd over Mcchune Branch

Good

Charleston County, South Carolina · 8 MI W of Goose Creek · Structure no. 000000000010668

Built
2015
10 years old
Condition
Good
inspected September 2023
Type
Slab
Concrete
Length
40 ft
1 main span
Daily traffic
600
2023 count
Owner
County
County Highway Agency

About this bridge

L-6794/WEBER Blvd over Mcchune Branch is a concrete slab carrying L-6794/WEBER Blvd over Mcchune Branch in Charleston County, South Carolina. It was built in 2015, so it is 10 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 600 vehicles a day, roughly 5% of them trucks, projected to reach 768 by 2043. The structure is 40 ft (12.2 m) long and 84 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesL-6794/WEBER Blvd
CrossesMcchune Branch
Location8 MI W of Goose Creek
RouteCounty Highway 6794
CountyCharleston County
StateSouth Carolina
Coordinates32.96139, -80.08389
Functional classUrban Local

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 inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.2 US tons
Inventory rating40.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length40 ft (12.2 m)
Longest span40 ft (12.2 m)
Deck width84 ft (25.5 m)
Roadway width54 ft (16.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic600 (2023)
Projected traffic768 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 L-6794/WEBER Blvd over Mcchune Branch built?

It was built in 2015, making it 10 years old in 2025.

What condition is L-6794/WEBER Blvd over Mcchune 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 September 2023.

How much traffic does L-6794/WEBER Blvd over Mcchune Branch carry?

About 600 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is L-6794/WEBER Blvd over Mcchune Branch?

The structure is 40 ft (12.2 m) long with a longest span of 40 ft (12.2 m) and a deck 84 ft wide.

Who owns L-6794/WEBER Blvd over Mcchune Branch?

It is owned by the County Highway Agency.