PORT OF SEATTLE 
MEMORANDUM 
COMMISSION AGENDA             Item No.      6d 
Date of Meeting    January 10, 2012 

DATE:    January 3, 2012 
TO:     Tay Yoshitani, Chief Executive Officer 
FROM:    Cassie Fritz, Manager, SPM Support Group 
Catherine Chu, Capital Construction Project Manager 
SUBJECT:  Procurement of Indefinite Delivery, Indefinite Quantity Professional Service
Agreements for Seaport Dredging Projects 

Amount of This Request: $0        Source of Funds: Future Individual Project
Authorizations 
Maximum Value of IDIQ Contracts: $2,000,000 with two contracts for $1,000,000 each 
ACTION REQUESTED: 
Request Port Commission authorization for the Chief Executive Officer to execute two
professional services Indefinite Delivery, Indefinite Quantity (IDIQ) contracts providing
technical analyses necessary for planning, design, and implementation of dredging projects
necessary for continuing vessel access at Seaport facilities. Two IDIQ con tracts will be issued
for the not-to-exceed amount of $1,000,000 each with a three-year ordering period. No funding
is associated with this authorization.
SYNOPSIS: 
In the past decade, dredging has been required for maintenance and improvement of essential
navigational access needs at existing marine cargo facilities. Recent projects include dredging
necessary for improving navigational access at Terminal 46 (2004), Terminal 30 (2006), 
Terminal 91 (2006), Terminal 18 (2008), and Terminal 5 (2010). The need for dredging projects 
(primarily maintenance in nature) is expected to continue due to the greater frequency of deepdraft
vessels calling at the Port requiring full design depth. 
Existing navigation access at container cargo facility berth areas experiences chronic shoaling
due to sediment deposition. In addition, berth depths are diminished due to down-slope
migration of accumulated sediments and coarse materials from aging under-pier embankments.
Finally, excavation of accumulated materials for the purpose of navigational access at existing
facilities has become increasing complex due to sediment contamination and liability matters.

COMMISSION AGENDA 
Tay Yoshitani, Chief Executive Officer 
January 3, 2012 
Page 2 of 2 
The proposed professional services IDIQ contracts would allow the Port to respond to future
navigational access dredging needs at existing facilities promptly and efficiently. The Office of
Social Responsibility will assist in identifying opportunities for small business participation prior
to advertisement of the IDIQs. 
Port staff estimated $2,000,000 professional services related to Seaport dredging projects within
the next three years. The anticipated professional services may be effectively completed by
different firms due to multiple projects and locations involved; accordingly Port staff determined
that providing multiple opportunities for firms to do business with the Port would best meet our
contracting and social responsibility needs. The Port will issue one procurement and contract
with two firms. 
PROJECT SCOPE OF WORK AND SCHEDULE: 
The contracts will be written with stipulated not-to-exceed amounts and identify scope of
services. Each contract will have a contract ordering period of three years. The three year 
ordering period may be extended to allow for work initiated during the contract ordering period
to be fully implemented. Each service directive will specify the specific scope, duration and
schedule associated with the work.
FINANCIAL IMPLICATIONS: 
Service Directives will be issued as part of a project which will be subject to separate reviews 
and requests for project authorization and funding. Consequently, there is no funding request
associated with this authorization. 
Source of Funds 
Source of funds will be based on the approved project authorizations associated with each
service directive. 
ALTERNATIVES CONSIDERED AND THEIR IMPLICATIONS: 
Prepare separate procurements each time a project need is identified. This option would not
be efficient or meet the schedule demands of the particular project. This is not the
recommended alternative.
Conduct one procurement and issue two contracts for consulting services related to dredging
projects. This alternative ensures a competitive process, encourages small business
participation, and provides staff with the tools needed to respond in a timely manner as
project needs arise. This is the recommended alternative. 
PREVIOUS COMMISSION ACTION: 
Previous dredging work has been supported by project specific contracts.