
COMMISSION AGENDA
Tay Yoshitani, Chief Executive Officer
July 27, 2011
Page 2 of 8
The Port and Total Terminals have agreed to a proposed amendment to the T-46 lease. The main
purpose of this amendment is to temporarily delete approximately five acres from the leased
premises to accommodate WSDOT’s operations on the proposed SR-99 bored tunnel of the
Alaskan Way Viaduct Replacement Program (Viaduct Project). The Port and WSDOT have
agreed to two proposed lease agreements for Pier/T-46 (incorporating the subtracted Total
Terminals leasehold area and other soon-to-be vacant premises along the north apron) and T-106.
ADDITIONAL BACKGROUND:
Since the Nisqually earthquake in 2001, WSDOT has worked with the City of Seattle, King
County and the Port to replace the damaged portion of SR-99 along the waterfront. Construction
of a replacement of the southern portion of SR-99, the S. Holgate to S. King Street Project, is
underway and expected to be completed by the end of 2013. Construction of a bored tunnel,
replacing SR-99 along the central waterfront, is currently expected to begin in the fall of 2011.
The project will move SR-99 into a bored tunnel beneath downtown, reconnect the street grid at
the ends of the tunnel, and remove the viaduct along the waterfront. The current route for the
tunnel begins on Alaskan Way S. (near S. King Street alongside T-46) to avoid impacts on First
Avenue S. through Pioneer Square, then moves toward First Avenue near Yesler Way, turns
north near Stewart Street and ends at Sixth Avenue N. and Thomas Street. It will be
approximately two miles long and will have two lanes of traffic in each direction, with ramps at
both ends so drivers can access the downtown street system from SR-99.
The proposed agreements with WSDOT and the amendment to the Total Terminals lease are a
critical element supporting construction of the bored tunnel. A major advantage of the bored
tunnel is that construction impacts to businesses and the traveling public will be minimized.
Using a tunnel-boring machine will enable WSDOT to build the new corridor while SR-99
remains open to traffic.
Providing room on Pier/T-46 supports bored tunnel construction and reduces the impact of
construction even further by eliminating thousands of truck trips from the area around Pier/T-46.
A staging area on Pier/T-46 will enable the State’s contractor to remove tunnel spoils via a
conveyor system to Pier/T-46, and barge them from the dock to their final destination. Similarly,
tunnel segments and other large components of the tunnel can be barged, rather than trucked in.
T-106 will be used for worker parking and some staging. The State’s contractor will bus workers
to and from the tunnel construction site, eliminating thousands of car trips and additional
pressure on an already reduced supply of parking in the south downtown area.
MAJOR ELEMENTS OF THE PROPOSED AGREEMENTS:
The major elements of the proposed agreements are as follows:
1) Twelfth Amendment to Total Terminals T-46 Lease