PORT OF SEATTLE 
MEMORANDUM 
COMMISSION AGENDA             Item No.      5b 
Date of Meeting     June 22, 2010 
DATE:    June 8, 2010 
TO:      Tay Yoshitani, Chief Executive Officer 
FROM:    Ralph Graves, Managing Director, Capital Development 
SUBJECT:  Change Order #340 for the Consolidated Rental Car Facility Project Contract
MC-0315405 
ACTION REQUESTED:
Request authorization for the Chief Executive Officer to issue Change Order #340 for the
Consolidated Rental Car Facility (RCF) in the amount of $325,000. This Change Order will
supplement Force Account Change Order #265 executed for $225,000 for a cumulative
estimated total cost of $550,000.
SYNOPSIS:
During the design of the Off-site Roadway Improvement (ORI) project it became apparent that
the design of the RCF ductbanks would need to be modified. Change Order #265 was issued to
address electrical changes needed to complete the electrical scope of work that was split between
the two Rental Car Program construction contracts. During construction, contaminated soils,
more restrictive traffic control requirements and inclement weather were encountered. Change
order #340 is required to compensate the contractor for these impacts during execution of the
changed work. No new funds are being requested as previous authorizations for the RCF,
including contingency funding, will cover the cost of this change order. 
BACKGROUND: 
The RCF project scope originally included the construction of a significant portion of electrical
and communication ductbanks between the RCF and the existing Port power and communication
systems in the vicinity of S 160th St and Host Road. This work if completed would terminate
power and communication to the S. 160th St. Ground Transportation Lots. At the time the RCF
was bid a separate project, the S 160th St Ground Transportation Lot Expansion project, would
provide power and communication services for the existing taxi and ground transportation
holding facilities on S. 160th St. Staff made the decision to delay the S. 160 St. Ground 
Transportation Lot Expansion project until after completion of the RCF and Offsite Roadway
Improvements (ORI) project to be more efficient with capital expenditures.

COMMISSION AGENDA 
T. Yoshitani, Chief Executive Officer 
June 16, 2010June 15, 2010 
Page 2 of 3 

Additionally, during design of the ORI project it was determined that a portion of the existing
ductbank the RCF project scope was to connect to would have to be removed and replaced as
part of constructing the new northbound access ramp to eastbound State Route 518. 
Staff determined, driven by construction schedules, that the best overall decision was to revise
the RCF design of the electrical and communication ductbank and incorporate a new connection
to the S. 160 St. Ground Transportation lots and the improvements to support the new north
bound access ramp. Design Change Notice #20 was prepared to incorporate theses changes into
RCF project and issued to Turner Construction. 
The Project previously issued Force Account Change Order #265 in the amount of $225,000
which allowed the contractor to proceed with work. This Change Order amount was based on
the Port of Seattle Estimate for the work of $197,915 to which an allowance of $25,000 was
added for flagging, traffic control and confined space work. This was further supported by a
Turner third party estimate in the amount of $252,345. 
The Electrical subcontractor submitted a proposal for $667,489 including GC/CM markups. The
Subcontractor proposal was over twice that of the Port of Seattle or the Turner's estimate. The
majority of the difference was identified as risks due to the unknown conditions associated with
the status of the existing communication and power services connections. T he Port of Seattle
concluded that there was insufficient time to negotiate a lump sum price without risk of impact to
the start of the offsite roads work.  Construction work was directed to start on a Force Account
basis via Change Order #265. During execution of the work three additional events have 
affected the productivity of the crews and the cost of the work. First the City of SeaTac 
mandated more costly and restrictive traffic control requirements for the work zone on S. 160th 
Street. Second, we encountered more unforeseen contaminated soil while excavating in this new
area resulting in standby costs while the contaminates were tested and removed. The third factor 
has been the unusually wet and rainy weather we have had in May and June that slowed
excavation work in the weather sensitive soils. 
GC/CM BUDGET APPROVAL DESCRIPTION AND JUSTIFICATION: 
The following information relates to the pending Change Order scope and cost: 
Change Order #340 
Scope of work: Modify the ductbank alignment and add the work to complete the
power and communications connections from the southwest corner of the project site to
the existing facilities. Coordinat e all disconnections and connections with the Port of
Seattle and utility companies. Work to be performed on a force account (time and
materials) basis.

COMMISSION AGENDA 
T. Yoshitani, Chief Executive Officer 
June 16, 2010June 15, 2010 
Page 3 of 3 

Justification: The work in the contract has to be modified to accommodate the power
and communications connections necessary to support existing facilities and the future 
ORI scope of work.
Consequences of not proceeding: The ductbanks would not be constructed in an
alignment that supported the roadway improvements and demolition work to support the
ORI project will not be allowed to start until the power and communications work is
rerouted to support the existing facilities through another contract procurement.
FINANCIAL ANALYSIS: 
Funds to pay for this change order are part of the project contingency funds that were included
in previously approved authorizations of $419,306,000.00. No additional project funds are being
requested as a result of this change order. 

CONTRACT INFORMATION:  The following information relates to the contract and
competitive award: 

Contract award date:                             May 30, 2008 
Original period of performance:           May 30, 2008 to April 1, 2011 
Previous contract extensions:                           228 Days 
Contract extension this change order:                        0 Days 
Current Contract Completion Date:               November 15, 2011 
Original contract amount:                       $224,837,739.00 
Previous Change Order Nos. 001  339:                $8,794,162.00 
Current contract amount                         $233,631,901.00 
This Request, Change Order No. 0340                  $325,000.00 
Revised contract amount:                       $233,956,901.00