US Bridges

Castillia ST over Dry Wash

Fair

Clark County, Nevada · Blue Diamond · Structure no. B1846

Built
1983
42 years old
Condition
Fair
inspected October 2024
Type
Slab
Concrete Continuous
Length
68 ft
3 main spans
Daily traffic
500
2017 count
Owner
County
County Highway Agency

About this bridge

Castillia ST over Dry Wash is a concrete continuous slab carrying Castillia ST over Dry Wash in Clark County, Nevada. It was built in 1983, so it is 42 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 500 vehicles a day, projected to reach 820 by 2040. The structure is 68 ft (20.7 m) long and 30 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesCastillia ST
CrossesDry Wash
LocationBlue Diamond
RouteCity Street 0
CountyClark County
StateNevada
Coordinates36.04959, -115.40618
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72.6 US tons
Inventory rating43.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length68 ft (20.7 m)
Longest span25 ft (7.6 m)
Deck width30 ft (9.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2017)
Projected traffic820 by 2040
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Castillia ST over Dry Wash built?

It was built in 1983, making it 42 years old in 2025.

What condition is Castillia ST 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 2024.

How much traffic does Castillia ST over Dry Wash carry?

About 500 vehicles per day (2017 count).

How long is Castillia ST over Dry Wash?

The structure is 68 ft (20.7 m) long with a longest span of 25 ft (7.6 m) and a deck 30 ft wide.

Who owns Castillia ST over Dry Wash?

It is owned by the County Highway Agency.