US Bridges

Riverside Drive over Hoag & Steward ST

Fair

Skagit County, Washington · Riverside DR JCT Hoag ST · Structure no. 087593000000000

Built
2003
22 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
60 ft
1 main span
Daily traffic
21,640
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Riverside Drive over Hoag & Steward ST is a prestressed concrete stringer/multi-beam or girder carrying Riverside Drive over Hoag & Steward ST in Skagit County, Washington. It was built in 2003, so it is 22 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 5 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 21,640 vehicles a day, roughly 5% of them trucks, projected to reach 39,084 by 2042. The structure is 60 ft (18.3 m) long and 72 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesRiverside Drive
CrossesHoag & Steward ST
LocationRiverside DR JCT Hoag ST
RouteCity Street 820
CountySkagit County
StateWashington
Coordinates48.44308, -122.33533
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.5 US tons
Inventory rating40.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length60 ft (18.3 m)
Longest span59 ft (18.1 m)
Deck width72 ft (21.9 m)
Roadway width65 ft (19.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,640 (2022)
Projected traffic39,084 by 2042
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed3.1 mi (5 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 proposedDeck rehabilitation with only incidental widening
Estimated improvement cost$1.9 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Riverside Drive over Hoag & Steward ST built?

It was built in 2003, making it 22 years old in 2025.

What condition is Riverside Drive over Hoag & Steward ST 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 2023.

How much traffic does Riverside Drive over Hoag & Steward ST carry?

About 21,640 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Riverside Drive over Hoag & Steward ST?

The structure is 60 ft (18.3 m) long with a longest span of 59 ft (18.1 m) and a deck 72 ft wide.

Who owns Riverside Drive over Hoag & Steward ST?

It is owned by the City or Municipal Highway Agency.