US Bridges

SR 9 over W Fk Nookachamps CR

Fair

Skagit County, Washington · 0.1 N JCT SR 538 · Structure no. 000000GJ0000000

Built
1920
105 years old
Condition
Fair
inspected April 2023
Type
Arch - Deck
Concrete
Length
243 ft
2 main spans
Daily traffic
6,465
2023 count
Owner
State
State Highway Agency

About this bridge

SR 9 over W Fk Nookachamps CR is a concrete arch - deck carrying SR 9 over W Fk Nookachamps CR in Skagit County, Washington. It was built in 1920, so it is 105 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 6,465 vehicles a day, roughly 4% of them trucks, projected to reach 11,118 by 2039. The structure is 243 ft (74.1 m) long and 23 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

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CarriesSR 9
CrossesW Fk Nookachamps CR
Location0.1 N JCT SR 538
RouteState Highway 9
CountySkagit County
StateWashington
Coordinates48.43067, -122.26425
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.2 US tons
Inventory rating48.6 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 15
Structure length243 ft (74.1 m)
Longest span110 ft (33.5 m)
Deck width23 ft (6.9 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,465 (2023)
Projected traffic11,118 by 2039
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$3.6 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 9 over W Fk Nookachamps CR built?

It was built in 1920, making it 105 years old in 2025.

What condition is SR 9 over W Fk Nookachamps CR 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 April 2023.

How much traffic does SR 9 over W Fk Nookachamps CR carry?

About 6,465 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is SR 9 over W Fk Nookachamps CR?

The structure is 243 ft (74.1 m) long with a longest span of 110 ft (33.5 m) and a deck 23 ft wide.

Who owns SR 9 over W Fk Nookachamps CR?

It is owned by the State Highway Agency.