US Bridges

IRR SR225 Mtn City over E Fork Owyhee Rvr

Fair

Elko County, Nevada · South of Mountain City · Structure no. B 541

Built
1950
75 years old
Condition
Fair
inspected July 2023
Type
Culvert
Concrete
Length
38 ft
3 main spans
Daily traffic
400
2021 count
Owner
State
State Highway Agency

About this bridge

IRR SR225 Mtn City over E Fork Owyhee Rvr is a concrete culvert carrying IRR SR225 Mtn City over E Fork Owyhee Rvr in Elko County, Nevada. It was built in 1950, so it is 75 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 400 vehicles a day, roughly 1% of them trucks, projected to reach 580 by 2040. The structure is 38 ft (11.7 m) long and 30 ft wide. If it were closed, the detour would be 77.1 mi (124 km).

Location

Open in Google Maps
CarriesIRR SR225 Mtn City
CrossesE Fork Owyhee Rvr
LocationSouth of Mountain City
RouteState Highway 225
CountyElko County
StateNevada
Coordinates41.74797, -115.92694
Functional classRural Minor 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 protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.8 US tons
Inventory rating33.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length38 ft (11.7 m)
Longest span12 ft (3.7 m)
Deck width30 ft (9.1 m)
Roadway width27 ft (8.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (2021)
Projected traffic580 by 2040
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed77.1 mi (124 km)
TollOn a free road
National Highway SystemNo

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 IRR SR225 Mtn City over E Fork Owyhee Rvr built?

It was built in 1950, making it 75 years old in 2025.

What condition is IRR SR225 Mtn City over E Fork Owyhee Rvr 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 July 2023.

How much traffic does IRR SR225 Mtn City over E Fork Owyhee Rvr carry?

About 400 vehicles per day (2021 count), of which roughly 1% are trucks.

How long is IRR SR225 Mtn City over E Fork Owyhee Rvr?

The structure is 38 ft (11.7 m) long with a longest span of 12 ft (3.7 m) and a deck 30 ft wide.

Who owns IRR SR225 Mtn City over E Fork Owyhee Rvr?

It is owned by the State Highway Agency.