US Bridges

Rd. No. 26 over Big Creek

Fair

Skagit County, Washington · M.P. 6.8 Rd. No. 26 · Structure no. 060502000001442

Built
1963
62 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
178 ft
1 main span
Daily traffic
79
1992 count
Owner
Federal
U.S. Forest Service

About this bridge

Rd. No. 26 over Big Creek is a steel stringer/multi-beam or girder carrying Rd. No. 26 over Big Creek in Skagit 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 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 178 ft (54.4 m) long and 31 ft wide. If it were closed, the detour would be 44.7 mi (72 km).

CarriesRd. No. 26
CrossesBig Creek
LocationM.P. 6.8 Rd. No. 26
RouteFederal Lands Road 26000
Coordinates48.3437, -121.43962
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations on dry land well above flood water elevations
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating60.1 US tons
Inventory rating35.1 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length178 ft (54.4 m)
Longest span175 ft (53.2 m)
Deck width31 ft (9.3 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic79 (1992)
Projected traffic118 by 2045
Trucks—
Lanes on structure2
Traffic directionTwo-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. 26 over Big Creek built?

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

What condition is Rd. No. 26 over Big 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 August 2023.

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

About 79 vehicles per day (1992 count).

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

The structure is 178 ft (54.4 m) long with a longest span of 175 ft (53.2 m) and a deck 31 ft wide.

Who owns Rd. No. 26 over Big Creek?

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