US Bridges

I 184 over I 84;FLYING Wye Ic

Good

Ada County, Idaho · 2.0 W. Boise · Structure no. 000000000019007

Built
2000
25 years old
Condition
Good
inspected April 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
817 ft
4 main spans
Daily traffic
26,000
2023 count
Owner
State
State Highway Agency

About this bridge

I 184 over I 84;FLYING Wye Ic is a prestressed concrete continuous box beam or girders - single or spread carrying I 184 over I 84;FLYING Wye Ic in Ada County, Idaho. It was built in 2000, so it is 25 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 26,000 vehicles a day, roughly 2% of them trucks, projected to reach 39,000 by 2042. The structure is 817 ft (249 m) long and 58 ft wide.

CarriesI 184
CrossesI 84;FLYING Wye Ic
Location2.0 W. Boise
RouteInterstate 184
StateIdaho
Coordinates43.59822, -116.28908
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54 US tons
Inventory rating32 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 25 or greater
Structure length817 ft (249 m)
Longest span222 ft (67.7 m)
Deck width58 ft (17.7 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic26,000 (2023)
Projected traffic39,000 by 2042
Trucks2%
Lanes on structure3
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes

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 184 over I 84;FLYING Wye Ic built?

It was built in 2000, making it 25 years old in 2025.

What condition is I 184 over I 84;FLYING Wye 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 April 2024.

How much traffic does I 184 over I 84;FLYING Wye Ic carry?

About 26,000 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is I 184 over I 84;FLYING Wye Ic?

The structure is 817 ft (249 m) long with a longest span of 222 ft (67.7 m) and a deck 58 ft wide.

Who owns I 184 over I 84;FLYING Wye Ic?

It is owned by the State Highway Agency.