US Bridges

SR564 Lake Mead Pw over Dry Wash

Fair

Clark County, Nevada · Henderson · Structure no. B 615

Built
1956
69 years old, rebuilt 1988
Condition
Fair
inspected October 2023
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
57,000
2017 count
Owner
State
State Highway Agency

About this bridge

SR564 Lake Mead Pw over Dry Wash is a concrete culvert carrying SR564 Lake Mead Pw over Dry Wash in Clark County, Nevada. It was built in 1956 and reconstructed in 1988, so it is 69 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 57,000 vehicles a day, roughly 12% of them trucks, projected to reach 117,883 by 2040. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesSR564 Lake Mead Pw
CrossesDry Wash
LocationHenderson
RouteState Highway 564
CountyClark County
StateNevada
Coordinates36.03387, -115.01174
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 inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.1 US tons
Inventory rating33.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length21 ft (6.4 m)
Longest span12 ft (3.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic57,000 (2017)
Projected traffic117,883 by 2040
Trucks12%
Lanes on structure9
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$330,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SR564 Lake Mead Pw over Dry Wash built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 1988.

What condition is SR564 Lake Mead Pw over Dry 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 October 2023.

How much traffic does SR564 Lake Mead Pw over Dry Wash carry?

About 57,000 vehicles per day (2017 count), of which roughly 12% are trucks.

How long is SR564 Lake Mead Pw over Dry Wash?

The structure is 21 ft (6.4 m) long with a longest span of 12 ft (3.6 m).

Who owns SR564 Lake Mead Pw over Dry Wash?

It is owned by the State Highway Agency.