US Bridges

Denny Way over I-5

Good

King County, Washington · 1.9 N JCT I-90 · Structure no. 0006635B0000000

Built
1962
63 years old
Condition
Good
inspected November 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
322 ft
3 main spans
Daily traffic
23,500
2018 count
Owner
State
State Highway Agency

About this bridge

Denny Way over I-5 is a concrete continuous box beam or girders - multiple carrying Denny Way over I-5 in King County, Washington. It was built in 1962, so it is 63 years old, older 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 23,500 vehicles a day, roughly 5% of them trucks, projected to reach 40,000 by 2038. The structure is 322 ft (98 m) long and 55 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesDenny Way
CrossesI-5
Location1.9 N JCT I-90
RouteCity Street 0
CountyKing County
StateWashington
Coordinates47.61845, -122.3293
Functional classUrban Other Principal Arterial

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.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating95 US tons
Inventory rating56 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length322 ft (98 m)
Longest span104 ft (31.7 m)
Deck width55 ft (16.9 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,500 (2018)
Projected traffic40,000 by 2038
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$6.7 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Denny Way over I-5 built?

It was built in 1962, making it 63 years old in 2025.

What condition is Denny Way over I-5 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 November 2023.

How much traffic does Denny Way over I-5 carry?

About 23,500 vehicles per day (2018 count), of which roughly 5% are trucks.

How long is Denny Way over I-5?

The structure is 322 ft (98 m) long with a longest span of 104 ft (31.7 m) and a deck 55 ft wide.

Who owns Denny Way over I-5?

It is owned by the State Highway Agency.