US Bridges

Flora RD over I-90

Fair

Spokane County, Washington · 3.1 E JCT SR 27 · Structure no. 0005130A0000000

Built
1957
68 years old
Condition
Fair
inspected October 2024
Type
Slab
Concrete Continuous
Length
118 ft
2 main spans
Daily traffic
3,500
2012 count
Owner
State
State Highway Agency

About this bridge

Flora RD over I-90 is a concrete continuous slab carrying Flora RD over I-90 in Spokane County, Washington. It was built in 1957, so it is 68 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 6 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 3,500 vehicles a day, roughly 5% of them trucks, projected to reach 4,760 by 2036. The structure is 118 ft (36 m) long and 35 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesFlora RD
CrossesI-90
Location3.1 E JCT SR 27
RouteCounty Highway 0
Coordinates47.66533, -117.17508
Functional classUrban Minor Arterial

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43.5 US tons
Inventory rating33.6 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 15
Structure length118 ft (36 m)
Longest span56 ft (17.1 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,500 (2012)
Projected traffic4,760 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

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$2 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Flora RD over I-90 built?

It was built in 1957, making it 68 years old in 2025.

What condition is Flora RD over I-90 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 October 2024.

How much traffic does Flora RD over I-90 carry?

About 3,500 vehicles per day (2012 count), of which roughly 5% are trucks.

How long is Flora RD over I-90?

The structure is 118 ft (36 m) long with a longest span of 56 ft (17.1 m) and a deck 35 ft wide.

Who owns Flora RD over I-90?

It is owned by the State Highway Agency.