US Bridges

I-90 over Viaduct Sta 1396 US 2

Fair

Spokane County, Washington · 1.3 E JCT US 195 · Structure no. 0007954A0000000

Built
1967
58 years old
Condition
Fair
inspected June 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
2,765 ft
22 main spans
Daily traffic
51,197
2023 count
Owner
State
State Highway Agency

About this bridge

I-90 over Viaduct Sta 1396 US 2 is a concrete continuous box beam or girders - multiple carrying I-90 over Viaduct Sta 1396 US 2 in Spokane County, Washington. It was built in 1967, so it is 58 years old, older than the Washington average of 49.8 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 51,197 vehicles a day, roughly 10% of them trucks, projected to reach 64,502 by 2039. The structure is 2,765 ft (842.8 m) long and 115 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-90
CrossesViaduct Sta 1396 US 2
Location1.3 E JCT US 195
RouteInterstate 90
CountySpokane County
StateWashington
Coordinates47.65267, -117.42224
Functional classUrban 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 inspectionJune 2024
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 geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating31.1 US tons
Inventory rating23.9 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans22
Design loadHS 20 + Mod
Structure length2,765 ft (842.8 m)
Longest span123 ft (37.5 m)
Deck width115 ft (35.1 m)
Roadway width104 ft (31.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic51,197 (2023)
Projected traffic64,502 by 2039
Trucks10%
Lanes on structure8
Traffic directionOne-way traffic
CarriesHighway
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 statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$123.5 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-90 over Viaduct Sta 1396 US 2 built?

It was built in 1967, making it 58 years old in 2025.

What condition is I-90 over Viaduct Sta 1396 US 2 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 June 2024.

How much traffic does I-90 over Viaduct Sta 1396 US 2 carry?

About 51,197 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is I-90 over Viaduct Sta 1396 US 2?

The structure is 2,765 ft (842.8 m) long with a longest span of 123 ft (37.5 m) and a deck 115 ft wide.

Who owns I-90 over Viaduct Sta 1396 US 2?

It is owned by the State Highway Agency.