US Bridges

Nookachamp Hills over Otter Pond Creek

Good

Skagit County, Washington · 0.75 E JCT SR 9 · Structure no. 088374000000000

Built
2008
17 years old
Condition
Good
inspected August 2023
Type
Culvert
Steel
Length
31 ft
1 main span
Daily traffic
470
2023 count
Owner
County
County Highway Agency

About this bridge

Nookachamp Hills over Otter Pond Creek is a steel culvert carrying Nookachamp Hills over Otter Pond Creek in Skagit County, Washington. It was built in 2008, so it is 17 years old, younger than the Washington average of 49.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 470 vehicles a day, roughly 6% of them trucks, projected to reach 698 by 2043. The structure is 31 ft (9.4 m) long and 33 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesNookachamp Hills
CrossesOtter Pond Creek
Location0.75 E JCT SR 9
RouteCounty Highway 6010
Coordinates48.39689, -122.22425
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than 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 alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating99 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadHS 20
Structure length31 ft (9.4 m)
Longest span28 ft (8.4 m)
Deck width33 ft (10.1 m)
Roadway width29 ft (8.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic470 (2023)
Projected traffic698 by 2043
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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$440,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nookachamp Hills over Otter Pond Creek built?

It was built in 2008, making it 17 years old in 2025.

What condition is Nookachamp Hills over Otter Pond Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2023.

How much traffic does Nookachamp Hills over Otter Pond Creek carry?

About 470 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is Nookachamp Hills over Otter Pond Creek?

The structure is 31 ft (9.4 m) long with a longest span of 28 ft (8.4 m) and a deck 33 ft wide.

Who owns Nookachamp Hills over Otter Pond Creek?

It is owned by the County Highway Agency.