US Bridges

L-1106/PALCOMMPKWY over Mcchune Branch

Good

Charleston County, South Carolina · North Charleston · Structure no. 000000000010611

Built
2011
14 years old
Condition
Good
inspected March 2023
Type
Culvert
Concrete
Length
26 ft
2 main spans
Daily traffic
13,700
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

L-1106/PALCOMMPKWY over Mcchune Branch is a concrete culvert carrying L-1106/PALCOMMPKWY over Mcchune Branch in Charleston County, South Carolina. It was built in 2011, so it is 14 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 13,700 vehicles a day, roughly 13% of them trucks, projected to reach 16,714 by 2043. The structure is 26 ft (7.9 m) long and 107 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesL-1106/PALCOMMPKWY
CrossesMcchune Branch
LocationNorth Charleston
RouteCounty Highway 1106
Coordinates32.94111, -80.0725
Functional classUrban Minor Arterial

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 inspectionMarch 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating91.8 US tons
Inventory rating70.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHL 93
Structure length26 ft (7.9 m)
Longest span13 ft (4 m)
Deck width107 ft (32.6 m)
Roadway width77 ft (23.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,700 (2023)
Projected traffic16,714 by 2043
Trucks13%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 L-1106/PALCOMMPKWY over Mcchune Branch built?

It was built in 2011, making it 14 years old in 2025.

What condition is L-1106/PALCOMMPKWY 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 March 2023.

How much traffic does L-1106/PALCOMMPKWY over Mcchune Branch carry?

About 13,700 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is L-1106/PALCOMMPKWY over Mcchune Branch?

The structure is 26 ft (7.9 m) long with a longest span of 13 ft (4 m) and a deck 107 ft wide.

Who owns L-1106/PALCOMMPKWY over Mcchune Branch?

It is owned by the City or Municipal Highway Agency.