US Bridges

IRR US 395S over Cradlebaugh Slough

Fair

Douglas County, Nevada · South of Carson City · Structure no. B1263S

Built
1987
38 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
90 ft
2 main spans
Daily traffic
16,750
2021 count
Owner
State
State Highway Agency

About this bridge

IRR US 395S over Cradlebaugh Slough is a steel continuous stringer/multi-beam or girder carrying IRR US 395S over Cradlebaugh Slough in Douglas County, Nevada. It was built in 1987, so it is 38 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 16,750 vehicles a day, roughly 5% of them trucks, projected to reach 40,951 by 2040. The structure is 90 ft (27.4 m) long and 45 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesIRR US 395S
CrossesCradlebaugh Slough
LocationSouth of Carson City
RouteU.S. Route 395
CountyDouglas County
StateNevada
Coordinates39.04896, -119.78006
Functional classRural Principal Arterial - Other

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 inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99.3 US tons
Inventory rating59.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length90 ft (27.4 m)
Longest span44 ft (13.4 m)
Deck width45 ft (13.7 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,750 (2021)
Projected traffic40,951 by 2040
Trucks5%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 IRR US 395S over Cradlebaugh Slough built?

It was built in 1987, making it 38 years old in 2025.

What condition is IRR US 395S over Cradlebaugh Slough 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 April 2023.

How much traffic does IRR US 395S over Cradlebaugh Slough carry?

About 16,750 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is IRR US 395S over Cradlebaugh Slough?

The structure is 90 ft (27.4 m) long with a longest span of 44 ft (13.4 m) and a deck 45 ft wide.

Who owns IRR US 395S over Cradlebaugh Slough?

It is owned by the State Highway Agency.