SR 20 over Rocky Creek

Fair Condition79 years old2,492 vehicles/day

Location

StateWashington
CountySkagit
Location4.6 E Jct SR 530
CarriesSR 20
CrossesRocky Creek
Coordinates48.50572, -121.49703

Condition Ratings

Overall ConditionFair
Deck6 (Satisfactory)
Superstructure6 (Satisfactory)
Substructure6 (Satisfactory)
Channel/Waterway6 (Satisfactory)
Scour Critical3 — Scour critical

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length128.0 ft (39 m)
Max Span60.0 ft (18.3 m)
Deck Width28.5 ft (8.7 m)
Deck Area339.3 sq m
Main Spans3
Year Built1947

Traffic

Avg Daily Traffic2,492 (2023)
Truck Traffic7%
Lanes On Bridge2

Inspection & Ownership

Last Inspection524
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number0003226A0000000

Nearby Bridges

Rockport Cascade over Illabot Creek (east) 1.7 mi Fair Rockport Cascade over Illabot Creek (middle) 1.7 mi Good Rockport Cascade R over Illabot Creek (west) 1.7 mi Good Conrad Road over Sutter Creek 2.4 mi Good SR 20 over Swift Creek 2.6 mi Good Conrad Road over Swift Creek 2.6 mi Fair Powerline RD over Olson Creek 3.4 mi Fair Cascade River RD over Skagit River 3.4 mi Fair Rockport Cascade over Jordan Creek 3.7 mi Good Rockport Cascade over Cascade River 4.0 mi Fair