US Bridges

First ST over May Creek

Good

Snohomish County, Washington · 0.4 NE JCT US 2 · Structure no. 087551000000000

Built
2007
18 years old
Condition
Good
inspected June 2023
Type
Slab
Prestressed Concrete
Length
60 ft
1 main span
Daily traffic
1,560
2019 count
Owner
City
City or Municipal Highway Agency

About this bridge

First ST over May Creek is a prestressed concrete slab carrying First ST over May Creek in Snohomish County, Washington. It was built in 2007, so it is 18 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 1,560 vehicles a day, roughly 8% of them trucks, projected to reach 2,500 by 2045. The structure is 60 ft (18.3 m) long and 44 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesFirst ST
CrossesMay Creek
Location0.4 NE JCT US 2
RouteCity Street 495
Coordinates47.86144, -121.69786
Functional classUrban Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89 US tons
Inventory rating68.6 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length60 ft (18.3 m)
Longest span57 ft (17.4 m)
Deck width44 ft (13.4 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,560 (2019)
Projected traffic2,500 by 2045
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2.5 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was First ST over May Creek built?

It was built in 2007, making it 18 years old in 2025.

What condition is First ST over May 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 2023.

How much traffic does First ST over May Creek carry?

About 1,560 vehicles per day (2019 count), of which roughly 8% are trucks.

How long is First ST over May Creek?

The structure is 60 ft (18.3 m) long with a longest span of 57 ft (17.4 m) and a deck 44 ft wide.

Who owns First ST over May Creek?

It is owned by the City or Municipal Highway Agency.