US Bridges

Stc 3723;ROBINSON over New York Canal

Fair

Canyon County, Idaho · 3.3 S. 3.5 E. Nampa · Structure no. 000000000027410

Built
1981
44 years old, rebuilt 2000
Condition
Fair
inspected February 2024
Type
Tee Beam
Prestressed Concrete
Length
53 ft
1 main span
Daily traffic
2,300
2023 count
Owner
Local
Other Local Agency

About this bridge

Stc 3723;ROBINSON over New York Canal is a prestressed concrete tee beam carrying Stc 3723;ROBINSON over New York Canal in Canyon County, Idaho. It was built in 1981 and reconstructed in 2000, so it is 44 years old, younger than the Idaho average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 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 2,300 vehicles a day, roughly 7% of them trucks, projected to reach 3,450 by 2042. The structure is 53 ft (16.2 m) long and 53 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesStc 3723;ROBINSON
CrossesNew York Canal
Location3.3 S. 3.5 E. Nampa
RouteCounty Highway 3723
CountyCanyon County
StateIdaho
Coordinates43.5298, -116.49351
Functional classUrban 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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53 US tons
Inventory rating24 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length53 ft (16.2 m)
Longest span51 ft (15.5 m)
Deck width53 ft (16.2 m)
Roadway width51 ft (15.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,300 (2023)
Projected traffic3,450 by 2042
Trucks7%
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

OwnerOther Local Agency
Maintained byOther Local Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$872,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Stc 3723;ROBINSON over New York Canal built?

It was built in 1981, making it 44 years old in 2025. It was reconstructed in 2000.

What condition is Stc 3723;ROBINSON over New York 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 February 2024.

How much traffic does Stc 3723;ROBINSON over New York Canal carry?

About 2,300 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is Stc 3723;ROBINSON over New York Canal?

The structure is 53 ft (16.2 m) long with a longest span of 51 ft (15.5 m) and a deck 53 ft wide.

Who owns Stc 3723;ROBINSON over New York Canal?

It is owned by the Other Local Agency.