US Bridges

Innis Creek RD over Samish River

Fair

Whatcom County, Washington · 00.2 S. Doren Road · Structure no. 087389000000000

Built
1999
26 years old
Condition
Fair
inspected October 2024
Type
Channel Beam
Concrete
Length
31 ft
1 main span
Daily traffic
106
2024 count
Owner
County
County Highway Agency

About this bridge

Innis Creek RD over Samish River is a concrete channel beam carrying Innis Creek RD over Samish River in Whatcom County, Washington. It was built in 1999, so it is 26 years old, younger 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 106 vehicles a day, roughly 4% of them trucks, projected to reach 250 by 2046. The structure is 31 ft (9.5 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesInnis Creek RD
CrossesSamish River
Location00.2 S. Doren Road
RouteCounty Highway 88850
Coordinates48.67726, -122.19598
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 protection8 Very GoodNo problems noted.
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating37.1 US tons
Inventory rating26.5 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckOther
Main spans1
Design loadH 20
Structure length31 ft (9.5 m)
Longest span30 ft (9.1 m)
Deck width26 ft (7.8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic106 (2024)
Projected traffic250 by 2046
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$1.5 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Innis Creek RD over Samish River built?

It was built in 1999, making it 26 years old in 2025.

What condition is Innis Creek RD over Samish River 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 Innis Creek RD over Samish River carry?

About 106 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is Innis Creek RD over Samish River?

The structure is 31 ft (9.5 m) long with a longest span of 30 ft (9.1 m) and a deck 26 ft wide.

Who owns Innis Creek RD over Samish River?

It is owned by the County Highway Agency.