US Bridges

Muliklteo Blvd over Merrill & Ring Creek

PoorPosted for load

Snohomish County, Washington · 0.15 W JCT Harbor Lane · Structure no. 085606000000000

Built
1931
94 years old, rebuilt 1980
Condition
Poor
inspected September 2023
Type
Truss - Deck
Steel Continuous
Length
384 ft
3 main spans
Daily traffic
6,123
2015 count
Owner
City
City or Municipal Highway Agency

About this bridge

Muliklteo Blvd over Merrill & Ring Creek is a steel continuous truss - deck carrying Muliklteo Blvd over Merrill & Ring Creek in Snohomish County, Washington. It was built in 1931 and reconstructed in 1980, so it is 94 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 6,123 vehicles a day, roughly 5% of them trucks, projected to reach 10,000 by 2036. The structure is 384 ft (117 m) long and 47 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

CarriesMuliklteo Blvd
CrossesMerrill & Ring Creek
Location0.15 W JCT Harbor Lane
RouteCity Street 42007
Coordinates47.95701, -122.25946
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
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations on dry land well above flood water elevations
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 alignment8: Equal to present desirable criteria
Operating rating25 US tons
Inventory rating15 US tons

Structure

Structure typeTruss - Deck
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+2 approach)
Design loadHS 20
Structure length384 ft (117 m)
Longest span180 ft (54.9 m)
Deck width47 ft (14.3 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,123 (2015)
Projected traffic10,000 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed11.2 mi (18 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$14.2 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Muliklteo Blvd over Merrill & Ring Creek built?

It was built in 1931, making it 94 years old in 2025. It was reconstructed in 1980.

What condition is Muliklteo Blvd over Merrill & Ring 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 Muliklteo Blvd over Merrill & Ring Creek carry?

About 6,123 vehicles per day (2015 count), of which roughly 5% are trucks.

How long is Muliklteo Blvd over Merrill & Ring Creek?

The structure is 384 ft (117 m) long with a longest span of 180 ft (54.9 m) and a deck 47 ft wide.

Who owns Muliklteo Blvd over Merrill & Ring Creek?

It is owned by the City or Municipal Highway Agency.