HomeMy WebLinkAboutPS 2018-09-04 Item 2B - Public Safety Plan - Fire Station 52 Pre-Design Options and EstimatesCity of Tukwila
Allan Ekberg, Mayor
INFOR ATIONAL E ORANDU
TO: Public Safety Committee
FROM: David Cline, City Administrator
CC: Mayor Ekberg
DATE: September 4, 2018
SUBJECT: Fire Stations #52 Pre -Design Options and Estimates
ISSUE
The Project Team has updated the Pre -Design estimate for Fire Station #52 project, using the
latest square footage costs recently generated for the Fire Station #51 Design Development
estimate. Due to the high site development cost, storm detention cost and the current
construction market, the project would only be within the currently approved construction budget
of $13,298,000 (including tax and preconstruction cost), if we can delay the interior finishes of
the Fire Department's administrative offices, and the Training Room / back up EOC space.
In addition, the Project Team was requested by the Fire Department to explore an alternate site
plan of being able to drive through the apparatus bays, in lieu of the currently designed back -in
configuration. For long-term operational efficiency, this site plan is preferred by the Fire
Department.
BACKGROUND
In November of 2016, the voters in Tukwila approved the City's Public Safety Bond as a part of
the overall Public Safety Plan. Included in the bond is funding for building fire stations to reduce
the risk of earthquake damage and provide equitable and improved response times.
In the past 2 months, the Project Team updated the Pre -Design phase estimate for FS #52
(from the 2017 estimate). Utilizing the current square foot cost derived from FS#51 DD
estimate, and fine-tuning the site development cost with better geotechnical and storm
infiltration test results, the GCCM was able to stay within budget with a strategy to bid the
interior finishes for the administrative area including the Training Room / back-up EOC as an
alternate. If we caTy-bid this scope as an alternate (shown in Teal in attachments A2 & 132, with
approximately $800,000 in project value), the construction cost estimate of $12,005,384 is
$5,384 over the budget, which is within an acceptable range of the target value to start the
Schematic Design phase.
The project Team including the Fire Department agreed that the proximity of this station to the
existing 6300 building (with the assumption of utilizing the vacancy after the Police
Department's move into the new Justice Center), is a reasonable strategy to be able to keep
moving forward with the project within the current schedule and budget. See Attachments Al &
A2 for details.
The Project Team also evaluated the drive -through station design. The additional paved area
for the rear apron, combined with the expected higher cost of excavation and import of structural
fill material resulted in $650,000 above the current budget (this also assumes bidding the Teal
areas as an alternate). See Attachments B1, B2 for details.
23
INFORMATIONAL MEMO
Page 2
RECOMMENDATION
The Public Safety Committee is asked to make a recommendation to the full Council on whether
to proceed into the Schematic Design phase between the following options:
1) Retain the current back -in station design, with the alternate bidding of the interior
finishes as described above. This option will keep the City in budget moving forward.
2) Design the drive -through site plan preferred by the Fire Department, with the
understanding of the additional $650,000 of funding required to complete the project.
The time -sensitive decision to be made is to choose one of the two site plans. While there is
still time for the Council to decide on whether or not to include finishing of the interior spaces,
the decision to change the site plan to the drive -through option has to be made now. The
design team can not proceed into the Schematic Design phase unless one option is selected by
the Council.
The additional project funding required by these decisions would have to be identified to provide
direction to City staff on moving forward. Some of the possible options for additional funding
could come from one of the following sources; through additional debt financing, utilizing future
apparatus and equipment funds, decreasing costs in other projects or repurposing of general
funds.
ATTACHMENTS
Al - Weinstein AU's site plan for back -in station
A2 — Weinstein AU's pre -design floor plan for back -in station
B1 - Weinstein AU's site plan for drive -through station
B2 - Weinstein AU's pre -design floor plan for drive -through station
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11citystorelCity Common \Council Agenda Items\Communications1PublicSafetySep41Fire Station 52 PreDesign Estimate Memo to Council - dc_lh.docx
Attachment Al
SECTION A
' C
:1 ! I
i
1 :
EXISTING
RETAINING WALL
=
A
\i-/+,131.5
RETAINING. WALL
)'?
01,126,0.
EXISTING RETAINING WALL
FILL
LINE OF EXISTING GRADE
NEW +/-15'H RETAINING WALL
ENTR, PLAZA
NEW RETAINING WALL
VISITING APPARATUS PARKING
SECURE FIREFIGHTER PARKING MOTORIZED:
16 SPACES GATE
- ' SECURITY FENCE-
-- STAIR & LIFT FROM `
CITY HALL PARKING
NEW
RETAIN -IN
WALL
- ,
7-)
-Y.
1T552 BACK -IN
TOTAL BUILDING = APPROX 15,800 GSF
ADMIN = APPROX 3,000 SF
NEW CONCRETE ACCESS DRIVE (RESURFACE, WIDEN, IMPROVE SLOPE)
NEW CONCRETE CURB AND SIDEWALK
SITE AREA: 110,469 SF
-/-
01
PRELIMINARY SITE STUDY
SCALE: 1" = 40'
Weinstein A+U
TUKWILA FIRE STATIONS 8/22/18
N
6)
Attachment A2
TFS52 BACK -IN CONCEPTUAL LAYOUT
TOTAL BUILDING = APPROX 15,800 GSF
ADMIN (TEAL) = APPROX 3,000 SF
BACKUP EMI TRAINING
CONCEPTUAL PROGRAM STUDY
ED
SCALE: 1/32" = 1'-0"
Weinstein A+U
TUKWILA FIRE STATIONS 8/22/18
N
CO
123.0
40'-0"
SECTION A
EXISTING RETAINING WALL
FILL
12.0
LINE OF EXISTING GRADE
NEW +/-10'H RETAINING WALL
------
105.0
NEW RETAINING WALL
MOTORIZED:
SECURE SECURE FIREFIGHTER PARK1NG„ GATE
16 CES
SECURITY FENCE —
STAIR & LIFT FROM -
CITY HALL PARKING
ic))
PRELIMINARY SITE STUDY
ENTRY PLAZA
V SITING APPARATUS PARKING
3% MAX SLOPE ON APRON---1.-
Attachment B1
TFS52 DRIVE-THRU
TOTAL BUILDING = APPROX 15,800 GSF
ADMIN = APPROX 3,000 SF
NEW CONCRETE ACCESS DRIVE (RESURFACE, WIDEN, IMPROVE SLOPE)
NEW CONCRETE CURB AND SIDEWALK
SITE AREA: 110,469 SF
SCALE: 1" = 40'
Weinstein A+U
TUKWILA FIRE STATIONS 8/22/18
CA)
O
Attachment B2
FIRST FLOOR
CEIV
AIRLOCK
1
ELEC
we
TFS52 DRIVE-THRU CONCEPTUAL LAYOUT
MECH
OFFICE
PUBLIC
SECOND FLOOR
CONCEPTUAL PROGRAM STUDY
TOTAL BUILDING = APPROX 15,800 GSF
ADMIN (TEAL) = APPROX 3,000 SF
SCALE: 1/32" = 1'-0"
Weinstein A+U
TUKWILA FIRE STATIONS 8/22/18