US Bridges

Rd. No. 25 over Straight Creek

Fair

Snohomish County, Washington · M.P. 3.17 Rd. No. 25 · Structure no. 060502000001451

Built
1963
62 years old
Condition
Fair
inspected September 2023
Type
Frame
Concrete Continuous
Length
70 ft
3 main spans
Daily traffic
24
1992 count
Owner
Federal
U.S. Forest Service

About this bridge

Rd. No. 25 over Straight Creek is a concrete continuous frame carrying Rd. No. 25 over Straight Creek in Snohomish County, Washington. It was built in 1963, so it is 62 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 5 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 24 vehicles a day, projected to reach 36 by 2045. The structure is 70 ft (21.3 m) long and 19 ft wide. If it were closed, the detour would be 44.7 mi (72 km).

Location

Open in Google Maps
CarriesRd. No. 25
CrossesStraight Creek
LocationM.P. 3.17 Rd. No. 25
RouteFederal Lands Road 25000
CountySnohomish County
StateWashington
Coordinates48.26317, -121.40355
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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.1 US tons
Inventory rating21.1 US tons

Structure

Structure typeFrame
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadOther
Structure length70 ft (21.3 m)
Longest span50 ft (15.2 m)
Deck width19 ft (5.7 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24 (1992)
Projected traffic36 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed44.7 mi (72 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. 25 over Straight Creek built?

It was built in 1963, making it 62 years old in 2025.

What condition is Rd. No. 25 over Straight 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 September 2023.

How much traffic does Rd. No. 25 over Straight Creek carry?

About 24 vehicles per day (1992 count).

How long is Rd. No. 25 over Straight Creek?

The structure is 70 ft (21.3 m) long with a longest span of 50 ft (15.2 m) and a deck 19 ft wide.

Who owns Rd. No. 25 over Straight Creek?

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