US Bridges

Stc 3747;LAKESHORE over New York Canal

Fair

Canyon County, Idaho · 4.7S 0.9W Nampa City Ctr · Structure no. 000000000027540

Built
1986
39 years old
Condition
Fair
inspected November 2024
Type
Frame
Concrete
Length
63 ft
2 main spans
Daily traffic
3,700
2023 count
Owner
Local
Other Local Agency

About this bridge

Stc 3747;LAKESHORE over New York Canal is a concrete frame carrying Stc 3747;LAKESHORE over New York Canal in Canyon County, Idaho. It was built in 1986, so it is 39 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 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 3,700 vehicles a day, roughly 2% of them trucks, projected to reach 5,550 by 2042. The structure is 63 ft (19.2 m) long and 48 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesStc 3747;LAKESHORE
CrossesNew York Canal
Location4.7S 0.9W Nampa City Ctr
RouteCounty Highway 3747
CountyCanyon County
StateIdaho
Coordinates43.51015, -116.57981
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52 US tons
Inventory rating31 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length63 ft (19.2 m)
Longest span31 ft (9.4 m)
Deck width48 ft (14.7 m)
Roadway width46 ft (14.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,700 (2023)
Projected traffic5,550 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Stc 3747;LAKESHORE over New York Canal built?

It was built in 1986, making it 39 years old in 2025.

What condition is Stc 3747;LAKESHORE 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 November 2024.

How much traffic does Stc 3747;LAKESHORE over New York Canal carry?

About 3,700 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is Stc 3747;LAKESHORE over New York Canal?

The structure is 63 ft (19.2 m) long with a longest span of 31 ft (9.4 m) and a deck 48 ft wide.

Who owns Stc 3747;LAKESHORE over New York Canal?

It is owned by the Other Local Agency.