US Bridges

Stc 3725;PERCH RD over Mora Canal

Fair

Canyon County, Idaho · 3.4 S. 7.5 W. Nampa · Structure no. 000000000026765

Built
1982
43 years old
Condition
Fair
inspected February 2024
Type
Tee Beam
Prestressed Concrete
Length
28 ft
1 main span
Daily traffic
350
2023 count
Owner
Local
Other Local Agency

About this bridge

Stc 3725;PERCH RD over Mora Canal is a prestressed concrete tee beam carrying Stc 3725;PERCH RD over Mora Canal in Canyon County, Idaho. It was built in 1982, so it is 43 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 350 vehicles a day, roughly 35% of them trucks, projected to reach 525 by 2042. The structure is 28 ft (8.5 m) long and 40 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesStc 3725;PERCH RD
CrossesMora Canal
Location3.4 S. 7.5 W. Nampa
RouteCounty Highway 3725
CountyCanyon County
StateIdaho
Coordinates43.52926, -116.71295
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating40 US tons
Inventory rating24 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length28 ft (8.5 m)
Longest span26 ft (7.9 m)
Deck width40 ft (12.2 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic350 (2023)
Projected traffic525 by 2042
Trucks35%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Stc 3725;PERCH RD over Mora Canal built?

It was built in 1982, making it 43 years old in 2025.

What condition is Stc 3725;PERCH RD over Mora 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 3725;PERCH RD over Mora Canal carry?

About 350 vehicles per day (2023 count), of which roughly 35% are trucks.

How long is Stc 3725;PERCH RD over Mora Canal?

The structure is 28 ft (8.5 m) long with a longest span of 26 ft (7.9 m) and a deck 40 ft wide.

Who owns Stc 3725;PERCH RD over Mora Canal?

It is owned by the Other Local Agency.