aaa36964

FOUO

CESPN-ET-ED 26 September 2014

MEMORANDUM FOR RECORD

Subject: IFB No. W912P7-14-B-0006, Oakland Inner and Outer Harbor Channel Maintenance

Dredging

Project, Alameda County, California – Period of Performance

Contract Type: Invitation for Bids (IFB) Unrestricted Solicitation

Period of Performance:

The 96-day Period of Performance for a project depth of -50-ft is based on the following assumptions:

1) Dredging is prohibited prior to 1 August 2014.

2) The Government is requesting an extension of the Environmental Work Window beyond 30 November 2014.

3) Dredge quantity of approximately 216,000 cubic yards.

4) Dredge quantity of approximately 50,000 cubic yards each for Options 1 and 2.

5) Average daily production rate of approximately 7,000 cubic yards.

6) Disposal at a Contractor-furnished upland beneficial use site assumed to be the

Montezuma Wetland Restoration Site.

Durations:

30 days Mobilization

46 days Production dredging

8 days Adverse weather delays

12 days Clean-up dredging

Proposed Milestone Schedule:

Issue IFB 29 September 2014

Bid Opening 29 October 2014

NTP 17 November 2014

CRC Base 14 February 2015

Project Description: The Base contract work includes maintenance dredging of the federal navigation channel of Oakland Inner and Outer Harbor Reaches 1, 2, 7, and 8, and two Option items for additional maintenance dredging of the Oakland Inner and Outer Harbors in anticipation of shoaling that is greater than what is anticipated. The bid schedule includes the estimated volume of dredged material for a project contract depth of -50-ft (MLLW) plus 1-ft of paid overdepth prism to be excavated from the Oakland Inner and Outer Harbors and transported and disposed at a fully permitted upland site of the Contractor’s choosing, and two Option items for an estimated 50,000 cubic yards each, of excavated dredged material to provide a project depth of -50-ft (MLLW) plus 1-ft of paid overdepth prism in the event of excessive shoaling prior to the start of dredging operations. The material excavated from the Option items will also be transported and disposed at the Contractor–furnished upland beneficial use site. Bidders shall submit bids for the Base contract Contractor-furnished upland disposal site(s), and Options 1 and

2.

David Doak

Navigation Technical Manager