US Bridges

Holman RD NW over 8th Ave NW

Fair

King County, Washington · Holman RD NW & 8th Ave NW · Structure no. 085624000000000

Built
1975
50 years old
Condition
Fair
inspected June 2024
Type
Slab
Prestressed Concrete
Length
67 ft
1 main span
Daily traffic
30,500
2018 count
Owner
City
City or Municipal Highway Agency

About this bridge

Holman RD NW over 8th Ave NW is a prestressed concrete slab carrying Holman RD NW over 8th Ave NW in King County, Washington. It was built in 1975, so it is 50 years old, older 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 6 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 30,500 vehicles a day, roughly 5% of them trucks, projected to reach 37,249 by 2040. The structure is 67 ft (20.4 m) long and 61 ft wide.

Location

Open in Google Maps
CarriesHolman RD NW
Crosses8th Ave NW
LocationHolman RD NW & 8th Ave NW
RouteCity Street 1140
CountyKing County
StateWashington
Coordinates47.69972, -122.36611
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating73 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length67 ft (20.4 m)
Longest span65 ft (19.8 m)
Deck width61 ft (18.6 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30,500 (2018)
Projected traffic37,249 by 2040
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed—
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2.9 million (2020 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Holman RD NW over 8th Ave NW built?

It was built in 1975, making it 50 years old in 2025.

What condition is Holman RD NW over 8th Ave NW 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 June 2024.

How much traffic does Holman RD NW over 8th Ave NW carry?

About 30,500 vehicles per day (2018 count), of which roughly 5% are trucks.

How long is Holman RD NW over 8th Ave NW?

The structure is 67 ft (20.4 m) long with a longest span of 65 ft (19.8 m) and a deck 61 ft wide.

Who owns Holman RD NW over 8th Ave NW?

It is owned by the City or Municipal Highway Agency.