A bridge is proposed to be built across the Ala Wai Canal that would connect Kalaimoku Street and University Avenue. Due to environmental concerns, the bridge is proposed to be supported by shallow foundations. The Ala Wai Canal is also proposed to be dredged approximately 10 feet below the existing mudline as a part of this project. An anchored bulkhead is proposed to be installed along the makai Ala Wai Canal walls to support and prevent damage to the existing historical canal walls.

Design the proposed makai anchored bulkhead walls. Provide:

- Minimum sheet pile wall embedment depth

- Deadman anchor dimensions

- Deadman anchor minimum setback

Anchored BulkHead Design:

• Dimensions -

  • Height, H =

  • H_w =

  • D_e =

• Dimensions (Deadman Anchor)

  • Length =

  • Width =

• Unit Weight, =

• Surcharge, q =

• Friction Angle, =

(N 20 Boring Information USCS Depth (ft bgs) 0-5 (pc) 120 GM Geologic Unit Fill Lagoonal Deposits Coralline Deposits 5-25 SM 95 30 35 40 25 - 100 SM 112 45 50 (u) dag 55 50 65 70 75 100 SOS Typical Profile View of Existing Makai Canal Wall Boring Design Water Level Ala Wai Blvd. +2' MSL BO'MSL 3-5' MSL Existing Mudline Existing Canal Wall (Assume y = 120 pcf) Not drawn to scale