US Bridges

Swede Heaven RD over Black Creek

Good

Snohomish County, Washington · 1.2 NW JCT SR 530 · Structure no. 080614000000000

Built
2002
23 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
25 ft
1 main span
Daily traffic
746
2021 count
Owner
County
County Highway Agency

About this bridge

Swede Heaven RD over Black Creek is a wood or timber stringer/multi-beam or girder carrying Swede Heaven RD over Black Creek in Snohomish County, Washington. It was built in 2002, so it is 23 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 746 vehicles a day, roughly 17% of them trucks, projected to reach 1,000 by 2045. The structure is 25 ft (7.6 m) long and 22 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesSwede Heaven RD
CrossesBlack Creek
Location1.2 NW JCT SR 530
RouteCounty Highway 84150
Coordinates48.28347, -121.70554
Functional classRural Local

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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating32 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span23 ft (7 m)
Deck width22 ft (6.8 m)
Roadway width21 ft (6.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic746 (2021)
Projected traffic1,000 by 2045
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.3 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Swede Heaven RD over Black Creek built?

It was built in 2002, making it 23 years old in 2025.

What condition is Swede Heaven RD over Black Creek 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 May 2023.

How much traffic does Swede Heaven RD over Black Creek carry?

About 746 vehicles per day (2021 count), of which roughly 17% are trucks.

How long is Swede Heaven RD over Black Creek?

The structure is 25 ft (7.6 m) long with a longest span of 23 ft (7 m) and a deck 22 ft wide.

Who owns Swede Heaven RD over Black Creek?

It is owned by the County Highway Agency.