US Bridges

Rockport Cascade over Jordan Creek

Good

Skagit County, Washington · 0.71 SW JCT N Cascade Hw · Structure no. 082344000000000

Built
1969
56 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Concrete
Length
56 ft
1 main span
Daily traffic
304
2021 count
Owner
County
County Highway Agency

About this bridge

Rockport Cascade over Jordan Creek is a concrete stringer/multi-beam or girder carrying Rockport Cascade over Jordan Creek in Skagit County, Washington. It was built in 1969, so it is 56 years old, older 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 304 vehicles a day, roughly 7% of them trucks, projected to reach 371 by 2041. The structure is 56 ft (17.2 m) long and 30 ft wide. If it were closed, the detour would be 21.1 mi (34 km).

CarriesRockport Cascade
CrossesJordan Creek
Location0.71 SW JCT N Cascade Hw
RouteCounty Highway 8700
Coordinates48.51849, -121.41924
Functional classRural Minor Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.8 US tons
Inventory rating34.3 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length56 ft (17.2 m)
Longest span54 ft (16.5 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic304 (2021)
Projected traffic371 by 2041
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.1 mi (34 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 proposedDeck rehabilitation with only incidental widening
Estimated improvement cost$804,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Rockport Cascade over Jordan Creek built?

It was built in 1969, making it 56 years old in 2025.

What condition is Rockport Cascade over Jordan 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 June 2024.

How much traffic does Rockport Cascade over Jordan Creek carry?

About 304 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is Rockport Cascade over Jordan Creek?

The structure is 56 ft (17.2 m) long with a longest span of 54 ft (16.5 m) and a deck 30 ft wide.

Who owns Rockport Cascade over Jordan Creek?

It is owned by the County Highway Agency.