US Bridges

I 90 Wbl over Hill Street Ic

Fair

Shoshone County, Idaho · Kellogg;hill Street · Structure no. 000000000017125

Built
1964
61 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
145 ft
3 main spans
Daily traffic
7,000
2023 count
Owner
State
State Highway Agency

About this bridge

I 90 Wbl over Hill Street Ic is a steel stringer/multi-beam or girder carrying I 90 Wbl over Hill Street Ic in Shoshone County, Idaho. It was built in 1964, so it is 61 years old, older 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 7,000 vehicles a day, roughly 18% of them trucks, projected to reach 10,500 by 2042. The structure is 145 ft (44.2 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI 90 Wbl
CrossesHill Street Ic
LocationKellogg;hill Street
RouteInterstate 90
CountyShoshone County
StateIdaho
Coordinates47.53971, -116.12359
Functional classRural Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81 US tons
Inventory rating48 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length145 ft (44.2 m)
Longest span72 ft (21.9 m)
Deck width40 ft (12.2 m)
Roadway width38 ft (11.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,000 (2023)
Projected traffic10,500 by 2042
Trucks18%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.2 mi (2 km)
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 90 Wbl over Hill Street Ic built?

It was built in 1964, making it 61 years old in 2025.

What condition is I 90 Wbl over Hill Street Ic 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 April 2023.

How much traffic does I 90 Wbl over Hill Street Ic carry?

About 7,000 vehicles per day (2023 count), of which roughly 18% are trucks.

How long is I 90 Wbl over Hill Street Ic?

The structure is 145 ft (44.2 m) long with a longest span of 72 ft (21.9 m) and a deck 40 ft wide.

Who owns I 90 Wbl over Hill Street Ic?

It is owned by the State Highway Agency.