US Bridges

Robe-Menzel Road over Coon Creek

Good

Snohomish County, Washington · 0.9 SE JCT SR 92 · Structure no. 086285000000000

Built
1997
28 years old
Condition
Good
inspected June 2024
Type
Tee Beam
Prestressed Concrete Continuous
Length
211 ft
2 main spans
Daily traffic
2,900
2022 count
Owner
County
County Highway Agency

About this bridge

Robe-Menzel Road over Coon Creek is a prestressed concrete continuous tee beam carrying Robe-Menzel Road over Coon Creek in Snohomish County, Washington. It was built in 1997, so it is 28 years old, younger than the Washington average of 49.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,900 vehicles a day, roughly 13% of them trucks, projected to reach 5,000 by 2042. The structure is 211 ft (64.3 m) long and 41 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesRobe-Menzel Road
CrossesCoon Creek
Location0.9 SE JCT SR 92
RouteCounty Highway 85950
Coordinates48.07139, -121.96306
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
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 rating74 US tons
Inventory rating44 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete Continuous
DeckOther
Main spans2
Design loadHS 25 or greater
Structure length211 ft (64.3 m)
Longest span106 ft (32.3 m)
Deck width41 ft (12.6 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,900 (2022)
Projected traffic5,000 by 2042
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed11.8 mi (19 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$8 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Robe-Menzel Road over Coon Creek built?

It was built in 1997, making it 28 years old in 2025.

What condition is Robe-Menzel Road over Coon Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2024.

How much traffic does Robe-Menzel Road over Coon Creek carry?

About 2,900 vehicles per day (2022 count), of which roughly 13% are trucks.

How long is Robe-Menzel Road over Coon Creek?

The structure is 211 ft (64.3 m) long with a longest span of 106 ft (32.3 m) and a deck 41 ft wide.

Who owns Robe-Menzel Road over Coon Creek?

It is owned by the County Highway Agency.