US Bridges

Idaho ST over Dry Wash

Poor

Elko County, Nevada · Elko · Structure no. M1472B

Built
1974
51 years old
Condition
Poor
inspected August 2024
Type
Culvert
Steel
Length
24 ft
5 main spans
Daily traffic
6,700
2017 count
Owner
City
City or Municipal Highway Agency

About this bridge

Idaho ST over Dry Wash is a steel culvert carrying Idaho ST over Dry Wash in Elko County, Nevada. It was built in 1974, so it is 51 years old, older than the Nevada average of 36.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 6,700 vehicles a day, roughly 3% of them trucks, projected to reach 11,000 by 2040. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesIdaho ST
CrossesDry Wash
LocationElko
RouteState Highway 0
CountyElko County
StateNevada
Coordinates40.85246, -115.7439
Functional classUrban Other Principal Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.5 US tons
Inventory rating28 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans5
Design loadHS 20 + Mod
Structure length24 ft (7.3 m)
Longest span4 ft (1.2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,700 (2017)
Projected traffic11,000 by 2040
Trucks3%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$302,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Idaho ST over Dry Wash built?

It was built in 1974, making it 51 years old in 2025.

What condition is Idaho ST over Dry Wash in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in August 2024.

How much traffic does Idaho ST over Dry Wash carry?

About 6,700 vehicles per day (2017 count), of which roughly 3% are trucks.

How long is Idaho ST over Dry Wash?

The structure is 24 ft (7.3 m) long with a longest span of 4 ft (1.2 m).

Who owns Idaho ST over Dry Wash?

It is owned by the City or Municipal Highway Agency.