US Bridges

SR 564 E Lake Mead over White Rock Wash

Good

Clark County, Nevada · North of Henderson · Structure no. B1484

Built
1998
27 years old
Condition
Good
inspected October 2021
Type
Culvert
Concrete
Length
39 ft
2 main spans
Daily traffic
18,000
2017 count
Owner
State
State Highway Agency

About this bridge

SR 564 E Lake Mead over White Rock Wash is a concrete culvert carrying SR 564 E Lake Mead over White Rock Wash in Clark County, Nevada. It was built in 1998, so it is 27 years old, younger 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 18,000 vehicles a day, roughly 5% of them trucks, projected to reach 37,226 by 2040. The structure is 39 ft (11.8 m) long. If it were closed, the detour would be 3.1 mi (5 km).

CarriesSR 564 E Lake Mead
CrossesWhite Rock Wash
LocationNorth of Henderson
RouteState Highway 564
StateNevada
Coordinates36.06872, -114.95886
Functional classUrban Other Principal 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 inspectionOctober 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72 US tons
Inventory rating43.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length39 ft (11.8 m)
Longest span19 ft (5.8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,000 (2017)
Projected traffic37,226 by 2040
Trucks5%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 564 E Lake Mead over White Rock Wash built?

It was built in 1998, making it 27 years old in 2025.

What condition is SR 564 E Lake Mead over White Rock Wash 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 October 2021.

How much traffic does SR 564 E Lake Mead over White Rock Wash carry?

About 18,000 vehicles per day (2017 count), of which roughly 5% are trucks.

How long is SR 564 E Lake Mead over White Rock Wash?

The structure is 39 ft (11.8 m) long with a longest span of 19 ft (5.8 m).

Who owns SR 564 E Lake Mead over White Rock Wash?

It is owned by the State Highway Agency.