US Bridges

IRR SR116 Stillwtr over S-Canal

Fair

Churchill County, Nevada · 6 Miles East of Fallon · Structure no. B 290

Built
1987
38 years old
Condition
Fair
inspected January 2021
Type
Culvert
Concrete
Length
40 ft
3 main spans
Daily traffic
1,450
2021 count
Owner
State
State Highway Agency

About this bridge

IRR SR116 Stillwtr over S-Canal is a concrete culvert carrying IRR SR116 Stillwtr over S-Canal in Churchill 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 1,450 vehicles a day, roughly 6% of them trucks, projected to reach 2,300 by 2040. The structure is 40 ft (12.2 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesIRR SR116 Stillwtr
CrossesS-Canal
Location6 Miles East of Fallon
RouteState Highway 116
StateNevada
Coordinates39.48954, -118.66019
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64 US tons
Inventory rating38.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20 + Mod
Structure length40 ft (12.2 m)
Longest span11 ft (3.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deck23 ft (7 m)

Traffic and service

Average daily traffic1,450 (2021)
Projected traffic2,300 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 SR116 Stillwtr over S-Canal built?

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

What condition is IRR SR116 Stillwtr over S-Canal 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 January 2021.

How much traffic does IRR SR116 Stillwtr over S-Canal carry?

About 1,450 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is IRR SR116 Stillwtr over S-Canal?

The structure is 40 ft (12.2 m) long with a longest span of 11 ft (3.4 m).

Who owns IRR SR116 Stillwtr over S-Canal?

It is owned by the State Highway Agency.