US Bridges

Marion DR over Cedar Chnl

Good

Clark County, Nevada · Las Vegas · Structure no. B1876

Built
1985
40 years old
Condition
Good
inspected November 2023
Type
Culvert
Concrete
Length
31 ft
2 main spans
Daily traffic
3,960
2017 count
Owner
City
City or Municipal Highway Agency

About this bridge

Marion DR over Cedar Chnl is a concrete culvert carrying Marion DR over Cedar Chnl in Clark County, Nevada. It was built in 1985, so it is 40 years old, older than the Nevada average of 36.4 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 3,960 vehicles a day, roughly 3% of them trucks, projected to reach 8,190 by 2040. The structure is 31 ft (9.4 m) long and 82 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesMarion DR
CrossesCedar Chnl
LocationLas Vegas
RouteCity Street 0
StateNevada
Coordinates36.17001, -115.07122
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
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 evaluation6: Equal to 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 rating42.5 US tons
Inventory rating25.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length31 ft (9.4 m)
Longest span15 ft (4.6 m)
Deck width82 ft (25 m)
Roadway width67 ft (20.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,960 (2017)
Projected traffic8,190 by 2040
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Marion DR over Cedar Chnl built?

It was built in 1985, making it 40 years old in 2025.

What condition is Marion DR over Cedar Chnl 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 Marion DR over Cedar Chnl carry?

About 3,960 vehicles per day (2017 count), of which roughly 3% are trucks.

How long is Marion DR over Cedar Chnl?

The structure is 31 ft (9.4 m) long with a longest span of 15 ft (4.6 m) and a deck 82 ft wide.

Who owns Marion DR over Cedar Chnl?

It is owned by the City or Municipal Highway Agency.