US Bridges

SR 146 over Sloan Wash

Fair

Clark County, Nevada · Near Sloan · Structure no. B 673

Built
1961
64 years old
Condition
Fair
inspected December 2020
Type
Culvert
Concrete
Length
59 ft
4 main spans
Daily traffic
33,500
2021 count
Owner
State
State Highway Agency

About this bridge

SR 146 over Sloan Wash is a concrete culvert carrying SR 146 over Sloan Wash in Clark County, Nevada. It was built in 1961, so it is 64 years old, older than the Nevada average of 36.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 33,500 vehicles a day, roughly 10% of them trucks, projected to reach 78,588 by 2040. The structure is 59 ft (18 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesSR 146
CrossesSloan Wash
LocationNear Sloan
RouteState Highway 146
CountyClark County
StateNevada
Coordinates35.96516, -115.17426
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2020
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.9 US tons
Inventory rating47.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHS 20 + Mod
Structure length59 ft (18 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic33,500 (2021)
Projected traffic78,588 by 2040
Trucks10%
Lanes on structure12
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 SR 146 over Sloan Wash built?

It was built in 1961, making it 64 years old in 2025.

What condition is SR 146 over Sloan Wash in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in December 2020.

How much traffic does SR 146 over Sloan Wash carry?

About 33,500 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is SR 146 over Sloan Wash?

The structure is 59 ft (18 m) long with a longest span of 14 ft (4.3 m).

Who owns SR 146 over Sloan Wash?

It is owned by the State Highway Agency.