US Bridges

Little Spokane Dr. over Little Spokane River

PoorPosted for load

Spokane County, Washington · 0.25 E Perry Road · Structure no. 082103000000000

Built
1951
74 years old
Condition
Poor
inspected September 2023
Type
Stringer/Multi-beam or Girder
Concrete
Length
90 ft
3 main spans
Daily traffic
1,109
2020 count
Owner
County
County Highway Agency

About this bridge

Little Spokane Dr. over Little Spokane River is a concrete stringer/multi-beam or girder carrying Little Spokane Dr. over Little Spokane River in Spokane County, Washington. It was built in 1951, so it is 74 years old, older than the Washington average of 49.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 1,109 vehicles a day, roughly 17% of them trucks, projected to reach 1,596 by 2042. The structure is 90 ft (27.4 m) long and 28 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesLittle Spokane Dr.
CrossesLittle Spokane River
Location0.25 E Perry Road
RouteCounty Highway 2570
Coordinates47.84264, -117.37488
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating22 US tons
Inventory rating13 US tons

Structure

MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHS 15
Structure length90 ft (27.4 m)
Longest span30 ft (9.1 m)
Deck width28 ft (8.6 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,109 (2020)
Projected traffic1,596 by 2042
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$3.6 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Little Spokane Dr. over Little Spokane River built?

It was built in 1951, making it 74 years old in 2025.

What condition is Little Spokane Dr. over Little Spokane River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2023.

How much traffic does Little Spokane Dr. over Little Spokane River carry?

About 1,109 vehicles per day (2020 count), of which roughly 17% are trucks.

How long is Little Spokane Dr. over Little Spokane River?

The structure is 90 ft (27.4 m) long with a longest span of 30 ft (9.1 m) and a deck 28 ft wide.

Who owns Little Spokane Dr. over Little Spokane River?

It is owned by the County Highway Agency.