US Bridges

NE 45th ST over 25th Ave NE

Good

King County, Washington · NE 45th ST & 25th Ave NE · Structure no. 085131000000000

Built
1976
49 years old
Condition
Good
inspected March 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
282 ft
4 main spans
Daily traffic
26,000
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

NE 45th ST over 25th Ave NE is a concrete continuous box beam or girders - multiple carrying NE 45th ST over 25th Ave NE in King County, Washington. It was built in 1976, so it is 49 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 26,000 vehicles a day, roughly 5% of them trucks, projected to reach 31,900 by 2039. The structure is 282 ft (86 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesNE 45th ST
Crosses25th Ave NE
LocationNE 45th ST & 25th Ave NE
RouteCity Street 1140
Coordinates47.66124, -122.29943
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 inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment6: Equal to present minimum criteria
Operating rating34 US tons
Inventory rating26.1 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4 (+6 approach)
Design loadHS 20
Structure length282 ft (86 m)
Longest span50 ft (15.2 m)
Deck width45 ft (13.7 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic26,000 (2022)
Projected traffic31,900 by 2039
Trucks5%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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$1.4 million (2020 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was NE 45th ST over 25th Ave NE built?

It was built in 1976, making it 49 years old in 2025.

What condition is NE 45th ST over 25th Ave NE 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 March 2024.

How much traffic does NE 45th ST over 25th Ave NE carry?

About 26,000 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is NE 45th ST over 25th Ave NE?

The structure is 282 ft (86 m) long with a longest span of 50 ft (15.2 m) and a deck 45 ft wide.

Who owns NE 45th ST over 25th Ave NE?

It is owned by the City or Municipal Highway Agency.