US Bridges

405 NE Ramp over NE Ramp over Ped Path

Good

King County, Washington · 5.7 N JCT SR 900 · Structure no. 002005350000000

Built
2021
4 years old
Condition
Good
inspected June 2023
Type
Culvert
Concrete
Length
25 ft
1 main span
Daily traffic
36,070
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

405 NE Ramp over NE Ramp over Ped Path is a concrete culvert carrying 405 NE Ramp over NE Ramp over Ped Path in King County, Washington. It was built in 2021, so it is 4 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 36,070 vehicles a day, roughly 5% of them trucks, projected to reach 59,392 by 2039. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Carries405 NE Ramp
CrossesNE Ramp over Ped Path
Location5.7 N JCT SR 900
RouteInterstate 405
Coordinates47.57986, -122.17164
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

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

ComponentRatingMeaning
Culvert8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.8 US tons
Inventory rating37.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHL 93
Structure length25 ft (7.6 m)
Longest span25 ft (7.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic36,070 (2023)
Projected traffic59,392 by 2039
Trucks5%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesPedestrian / bicycle
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$499,000 (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was 405 NE Ramp over NE Ramp over Ped Path built?

It was built in 2021, making it 4 years old in 2025.

What condition is 405 NE Ramp over NE Ramp over Ped Path 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 405 NE Ramp over NE Ramp over Ped Path carry?

About 36,070 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is 405 NE Ramp over NE Ramp over Ped Path?

The structure is 25 ft (7.6 m) long with a longest span of 25 ft (7.6 m).

Who owns 405 NE Ramp over NE Ramp over Ped Path?

It is owned by the City or Municipal Highway Agency.