Coastal Structure Design Tools

Oral

1700 - Jetty Design Using Dual Life-Cycle And Physical Modeling Approach – Coos Bay, OR

Presenting Author(s)

• VG

  Victor Gonzalez

  U.S. Army ERDC

Additional Author #1(s)

• JM

  Jeffrey Melby, MS, PhD, PE

  Principal
  Noble Consultants-G.E.C. Inc.

Additional Author #2(s)

• LC

  Lynda Charles

Additional Author #3(s)

• WS

  William Seabergh

A life-cycle modeling approach was applied, in conjunction with a physical model, to the design of the North Jetty major maintenance repair in Coos Bay, Oregon. A time dependent damage model was used to assess jetty head performance throughout a 50 year economic design life for a wide range of forcing and design conditions. A 1:55 scale physical model of the Coos Bay jetties and deep draft channel was constructed to perform stability tests centered on the North Jetty head. The use of a physical model provided an invaluable opportunity to interactively assess and validate the numerical life-cycle model.