US Bridges

Sunset Boulevard over Latah Creek

PoorPosted for load

Spokane County, Washington · 1.74 W of US 2 · Structure no. 085428000000000

Built
1913
112 years old
Condition
Poor
inspected September 2023
Type
Arch - Deck
Concrete Continuous
Length
1,070 ft
7 main spans
Daily traffic
14,995
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Sunset Boulevard over Latah Creek is a concrete continuous arch - deck carrying Sunset Boulevard over Latah Creek in Spokane County, Washington. It was built in 1913, so it is 112 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 14,995 vehicles a day, roughly 2% of them trucks, projected to reach 23,625 by 2039. The structure is 1,070 ft (326.1 m) long and 64 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesSunset Boulevard
CrossesLatah Creek
Location1.74 W of US 2
RouteCity Street 0
Coordinates47.64975, -117.44788
Functional classUrban Other Principal Arterial

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
Deck4 PoorAdvanced section loss, deterioration, 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 protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating18.2 US tons
Inventory rating13.9 US tons

Structure

Structure typeArch - Deck
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans7 (+2 approach)
Design loadHS 20
Structure length1,070 ft (326.1 m)
Longest span150 ft (45.7 m)
Deck width64 ft (19.4 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,995 (2023)
Projected traffic23,625 by 2039
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway and waterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusListed on the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$23.9 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Sunset Boulevard over Latah Creek built?

It was built in 1913, making it 112 years old in 2025.

What condition is Sunset Boulevard over Latah Creek 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 Sunset Boulevard over Latah Creek carry?

About 14,995 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is Sunset Boulevard over Latah Creek?

The structure is 1,070 ft (326.1 m) long with a longest span of 150 ft (45.7 m) and a deck 64 ft wide.

Who owns Sunset Boulevard over Latah Creek?

It is owned by the City or Municipal Highway Agency.