US Bridges

I 84 Wbl & Ebl over I 84B ;garrity Blvd Ic

Good

Canyon County, Idaho · At Nampa Ecl · Structure no. 000000000015621

Built
2011
14 years old
Condition
Good
inspected January 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
131 ft
1 main span
Daily traffic
111,000
2023 count
Owner
State
State Highway Agency

About this bridge

I 84 Wbl & Ebl over I 84B ;garrity Blvd Ic is a prestressed concrete stringer/multi-beam or girder carrying I 84 Wbl & Ebl over I 84B ;garrity Blvd Ic in Canyon County, Idaho. It was built in 2011, so it is 14 years old, younger than the Idaho average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 111,000 vehicles a day, roughly 16% of them trucks, projected to reach 166,500 by 2042. The structure is 131 ft (39.9 m) long and 130 ft wide.

CarriesI 84 Wbl & Ebl
CrossesI 84B ;garrity Blvd Ic
LocationAt Nampa Ecl
RouteInterstate 84
StateIdaho
Coordinates43.59917, -116.51417
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionJanuary 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating50 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length131 ft (39.9 m)
Longest span128 ft (39 m)
Deck width130 ft (39.6 m)
Roadway width125 ft (38.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic111,000 (2023)
Projected traffic166,500 by 2042
Trucks16%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 84 Wbl & Ebl over I 84B ;garrity Blvd Ic built?

It was built in 2011, making it 14 years old in 2025.

What condition is I 84 Wbl & Ebl over I 84B ;garrity Blvd Ic in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in January 2024.

How much traffic does I 84 Wbl & Ebl over I 84B ;garrity Blvd Ic carry?

About 111,000 vehicles per day (2023 count), of which roughly 16% are trucks.

How long is I 84 Wbl & Ebl over I 84B ;garrity Blvd Ic?

The structure is 131 ft (39.9 m) long with a longest span of 128 ft (39 m) and a deck 130 ft wide.

Who owns I 84 Wbl & Ebl over I 84B ;garrity Blvd Ic?

It is owned by the State Highway Agency.