US Bridges

Rd. No. 26 over Sulphur Creek

Fair

Snohomish County, Washington · M.P. 22.9 Rd. No. 26 · Structure no. 060502000001446

Built
1964
61 years old
Condition
Fair
inspected October 2024
Type
Frame
Concrete Continuous
Length
80 ft
3 main spans
Daily traffic
79
1992 count
Owner
Federal
U.S. Forest Service

About this bridge

Rd. No. 26 over Sulphur Creek is a concrete continuous frame carrying Rd. No. 26 over Sulphur Creek in Snohomish County, Washington. It was built in 1964, so it is 61 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 79 vehicles a day, projected to reach 118 by 2045. The structure is 80 ft (24.4 m) long and 18 ft wide. If it were closed, the detour would be 98.2 mi (158 km).

CarriesRd. No. 26
CrossesSulphur Creek
LocationM.P. 22.9 Rd. No. 26
RouteFederal Lands Road 26000
Coordinates48.24806, -121.19185
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating43 US tons
Inventory rating29 US tons

Structure

Structure typeFrame
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadOther
Structure length80 ft (24.4 m)
Longest span50 ft (15.2 m)
Deck width18 ft (5.6 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic79 (1992)
Projected traffic118 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.2 mi (158 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Rd. No. 26 over Sulphur Creek built?

It was built in 1964, making it 61 years old in 2025.

What condition is Rd. No. 26 over Sulphur Creek 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 October 2024.

How much traffic does Rd. No. 26 over Sulphur Creek carry?

About 79 vehicles per day (1992 count).

How long is Rd. No. 26 over Sulphur Creek?

The structure is 80 ft (24.4 m) long with a longest span of 50 ft (15.2 m) and a deck 18 ft wide.

Who owns Rd. No. 26 over Sulphur Creek?

It is owned by the U.S. Forest Service.