US Bridges

Mukilteo Blvd over Glenwood Creek

Fair

Snohomish County, Washington · 0.1 W JCT Glenwood Ave · Structure no. 085605000000000

Built
1979
46 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
303 ft
3 main spans
Daily traffic
3,083
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Mukilteo Blvd over Glenwood Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying Mukilteo Blvd over Glenwood Creek in Snohomish County, Washington. It was built in 1979, so it is 46 years old, younger 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 3,083 vehicles a day, roughly 5% of them trucks, projected to reach 10,000 by 2046. The structure is 303 ft (92.3 m) long and 52 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

CarriesMukilteo Blvd
CrossesGlenwood Creek
Location0.1 W JCT Glenwood Ave
RouteCity Street 420
Coordinates47.9568, -122.2502
Functional classUrban Other Principal 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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations on dry land well above flood water elevations
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79 US tons
Inventory rating47 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length303 ft (92.3 m)
Longest span110 ft (33.5 m)
Deck width52 ft (15.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,083 (2022)
Projected traffic10,000 by 2046
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$6 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Mukilteo Blvd over Glenwood Creek built?

It was built in 1979, making it 46 years old in 2025.

What condition is Mukilteo Blvd over Glenwood Creek 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 Mukilteo Blvd over Glenwood Creek carry?

About 3,083 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Mukilteo Blvd over Glenwood Creek?

The structure is 303 ft (92.3 m) long with a longest span of 110 ft (33.5 m) and a deck 52 ft wide.

Who owns Mukilteo Blvd over Glenwood Creek?

It is owned by the City or Municipal Highway Agency.