Island County

Coupeville, WA

Bluff Report

User Submitted Data

Bluff Overview

Bluff height: 50-60'

Bluff sediment type/geology:

  • Mud
  • Sand

Bluff vegetation:

  • Shrubs
  • Trees

Groundwater seeps?: Yes

Profile shape: Concave

Profile

Bluff undercut?: No

Bluff slide deposits?: Yes

Slide Deposits

Slide deposit height: 10-20'ft

Slide deposit width: 10-20'ft

Slide deposit depth: >10'ft

Slide deposit composition:

  • Mud

Upper beach composition:

  • Sand
  • Gravels
  • Cobbles

Is the slide wet or dry?: Wet

What is the slide wet from?: Groundwater Seep

Portion of bluff that slide deposit came from: Middle

Does the slide deposit material match material observed in the bluff above?: Yes

Where is the change obvious?: Material is being added to the top

Bluff and/or Deposit Change

Estimated distance from scarp edge to reference feature: 10-20'

Does the deposit size or scarp appear to be changing?: Yes

What sediment sizes are present at the beach?:

  • Sand
  • Gravels
  • Cobbles

Tidal Overview

Loading tide stations…

Weather Overview

Wind Speed: 6.9 MPH

Wind Direction: W (280°)

Temperature: 57℉

Rainfall (Calendar Day): 0"

Rainfall (Past 24 Hours): 0"

Click here for full weather details



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