HomeMy WebLinkAbout2013-03-21 Architectural Review Board Agenda Packet
City of Palo Alto Page 1
=================MEETINGS ARE CABLECAST LIVE ON GOVERNMENT ACCESS CHANNEL 26======================
Thursday March 21, 2013
REGULAR MEETING - 8:30 AM
City Council Chambers, Civic Center, 1st Floor
250 Hamilton Avenue
Palo Alto, CA 94301
ROLL CALL:
Board members: Staff Liaison:
Clare Malone Prichard (Chair) Russ Reich, Senior Planner
Lee Lippert (Vice Chair)
Alexander Lew Staff:
Randy Popp Diana Tamale, Administrative Associate
Naseem Alizadeh Amy French, Chief Planning Official
Clare Campbell, Planner
Scott Mckay, Associate Planner
Walter Passmore, Urban Forester
Steven Turner, Advance Planning Manager
PROCEDURES FOR PUBLIC HEARINGS
Please be advised the normal order of public hearings of agenda items is as follows:
Announce agenda item
Open public hearing
Staff recommendation
Applicant presentation – Ten (10) minutes limitation or at the discretion of the Board.
Public comment – Five (5) minutes limitation per speaker or limitation to three (3)
minutes depending on large number of speakers per item.
Architectural Review Board questions of the applicant/staff, and comments
Applicant closing comments - Three (3) minutes
Close public hearing
Motions/recommendations by the Board
Final vote
ORAL COMMUNICATIONS. Members of the public may speak to any item not on the
agenda with a limitation of three (3) minutes per speaker. Those who desire to speak must
complete a speaker request card available from the secretary of the Board. The Architectural
Review Board reserves the right to limit the oral communications period to 15 minutes.
APPROVAL OF MINUTES.
March 7, 2013
ARCHITECTURAL REVIEW BOARD
AGENDA
City of Palo Alto Page 2
AGENDA CHANGES, ADDITIONS AND DELETIONS. The agenda may have additional
items added to it up until 72 hours prior to meeting time.
INFORMATIONAL ITEM:
1. Urban Forest Master Plan: Presentation by City staff regarding the preparation of the Urban
Forest Master Plan.
CONTINUED BUSINESS:
Preliminary Review:
2. 611 Cowper Street [13PLN-00028]: Request by The Hayes Group, on behalf of R&M
Properties, for Preliminary Architectural Review of a new four-story mixed use building and
two levels of below grade parking garage, 28,392 s.f. of office space and one residential unit.
Zone: CD-C(P). This item was continued from the regular meeting on March 7, 2013.
NEW BUSINESS:
Preliminary Review:
3. 441 Page Mill Road [13PLN-00019]: Request by Stoecker and Northway, on behalf of Norm
Schwab, for Preliminary Architectural Review of a new 32,524 sf. mixed use building (21,540
sf. commercial and 8 residential units) and one level of below grade parking. Zone District:
Service Commercial (CS).
Major Review:
4. 1901 Embarcadero Road [11PLN-00254]: Request by AT&T, for Architectural Review of a
wireless communication facility and associated screening and equipment on City property at the
Palo Alto Airport. Zone District: Public Facilities PF (D).
BOARD MEMBER BUSINESS AND ANNOUNCEMENTS.
REPORTS FROM OFFICIALS.
Subcommittee Members: Naseem Alizadeh and Randy Popp
SUBCOMMITTEE:
5. 180 Hamilton Avenue [12PLN-00147]: Clarifications to previously approved project by
Steinberg Architects, on behalf of Casa Olga and Joie de Vivre Hospitality, for Architectural
Review of an existing eight story building and conversion to an 86 room hotel use and ground
floor restaurant. Clarifications include the details for the hardscape plan, balcony railing, and
roof mechanical screen. Zone: CD-C (P). Environmental Assessment: A Negative Declaration
was approved for the project in accordance with the California Environmental Quality Act
(CEQA).
City of Palo Alto Page 3
STAFF ARCHITECTURAL REVIEW:
Project Description: One double sided non-illuminated wall sign up to five feet tall
Applicant: Dan Kitzmiller
Address: 555 Waverley Street [13PLN-00012]
Approval Date: 3/11/13
Request for hearing deadline: 3/25/13
Project Description: Exterior façade improvements to the existing building
Applicant: Mr. Lee Lippert, AIA
Address: 327-339 Hawthorne Avenue [12PLN-00505]
Approval Date: 3/12/13
Request for hearing deadline: 3/25/13
Project Description: Exterior façade improvements to the existing building
Applicant: Mr. Lee Lippert, AIA
Address: 311-323 Hawthorne Avenue [12PLN-00506]
Approval Date: 3/12/13
Request for hearing deadline: 3/25/13
ADA. The City of Palo Alto does not discriminate against individuals with disabilities. To request accommodations to
access City facilities, services or programs, to participate at public meetings, or to learn more about the City’s compliance
with the Americans with Disabilities Act of 1990 (ADA), please contact the City’s ADA Coordinator at 650.329.2550 (voice)
or by e-mailing ada@cityofpaloalto.org.
Posting of agenda. This agenda is posted in accordance with government code section 54954.2(a) or section
54956.Recordings. A videotape of the proceedings can be obtained/reviewed by contacting the City Clerk’s Office at (650)
329-2571.
Materials related to an item on this agenda submitted to the Architectural Review Board after
distribution of the agenda packet are available for public inspection in the Planning and Community
Environment Department at 250 Hamilton Avenue, 5th floor, Palo Alto, CA. 94301 during normal
business hours.
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CITY OF
PAL
ALT
Agenda Date:
To:
From:
Subject:
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March 21, 2013
Architectural Review Board
Scott Mckay, Associate Planner
Architectural Review Board
Staff Report
Department: Planning and
Community Environment
1901 Embarcadero Road [11PLN-00254]: Request by AT&T, on
behalf of the City of Palo Alto, for Architectural Review and
Conditional Use Permit for the installation of nine panel antennas on
a new replacement lattice tower (to replace the existing Palo Alto ·
Airport beacon tower) and associated equipment and ground based
fenced enclosure for a new wireless communication facility. Zone: PF
(D). Environmental Assessment: Exempt from the California
Environmental Quality Act per section (15303).
RECOMMENDATION
Staff recommends the Architectural Review Board (ARB) recommend approval of the
Architectural Review (AR) application as conditioned to the Director of Planning and
Community Environment (Director), based upon the ARB Approval Findings in
Attachment A and subject to the Conditions of Approval in Attachment B. The
Conditional Use Permit application will be considered by the Director to allow a stand
alone wireless communication facility as a 'Utility Facility' within the Public Facilities
(PF)(D) zone.
BACKGROUND
On June 29, 2011 AT&T submitted an application to the Planning Department for
Architectural Review and Conditional Use Permit for the installation of a new wireless
communication facility on an existing lattice tower (Palo Alto Airport beacon tower) at
1901 Embarcadero Road (Palo Alto Airport), near the Palo Alto Baylands Nature Preserve.
The subject property is owned by the City of Palo Alto (City) and has been divided and
leased to the Airport and the Golf Course. The existing lattice tower is located within a
median "island" which includes several Eucalyptus trees and Oleander shrubs. The Airport
lease line boundary runs through the median "island," however the existing lattice tower
and proposed replacement lattice tower (and fenced equipment enclosure) are both entirely
located on·the land leased by the Airport.
IlPLN-00254 Page 1 of5
The City is not the proponent of the project, but is the land owner of the airport which is
leased to the County of Santa Clara. The beacon tower is still in use/operation and is
required by the Federal Aviation Administration (FAA). After a decision is made on the
new tower by the City, the County of Santa Clara will apply to the FAA for the
replacement tower.
Architectural Review Standards
The ARB's review focus for wireless communication facilities is the project's aesthetics
and sustainability, in accordance with AR approval findings set forth in P AMC Section
18.76.050 item (d). Staff and the ARB also must consider whether the facility would meet
Palo Alto Municipal Code (P AMC) Section 18.42.110 items (d) Equipment Cabinets and
Enclosures, and (e) Antenna Design. PAMC Section 18.42.110 item (c) Development
Standards and Exceptions sets forth maximum height limits and setbacks for stand alone
facilities. Staffs additional task on the AR application is to review the project's
compliance with applicable Comprehensive Plan policies, to ensure AR Finding # 1 is
supportable. The ARB recommendation on the AR application is to be based upon the
AR approval findings as may be deenled relevant to the project, from among the 15
Architectural Review findings.
Conditional Use Permit and Architectural Review
A Conditional Use Permit (CUP) is under consideration for the proposed use on this site,
zoned PF(D) or Public Facilities zone district with a Site and Design Review combining
district. The CUP is required for installation of Utility Facilities, a use classification that
has been used in the past in reference to cellular towers. Applicable Findings and
Conditions for approval of the CUP will be prepared prior to the Planning Director's
action on the Architectural Review application, and the two application components will
be acted upon concurrently. Following the Director's action on a ClTP, a request for
hearing by the Planning and Transportation Commission may be filed, and in that case,
Council final action on the CUP would then occur on Council's Consent Calendar (unless
pulled off Consent Calendar for a public hearing).
The Director's action on an AR application following recommendation by the ARB is
appealable to City Council and, in the case of an appeal, is also placed on Council's
Consent Calendar for final action. The D combining district allows for Architectural
Review of projects on sites within the PF(D) district, if "diverted" under PAMC Section
18.76.020(b)(3)(D) "Any project relating to the installation of cabinets containing
communications service equipment or facilities, pursuant to any service subject to
Chapters 2.11, 12.04, 12.08, 12.09, 12.10 or 12.13." Given the existence of the beacon
tower on the site, staff determined that the project was not significantly altering the
character or appearance of the site and therefore not subject to review by the Planning and
Transportation Commission, but that review by the Architectural Review Board of the
replacement tower, which will now serve two uses, was appropriate.
IlPLN-00254 Page 2 of5
Revisions Timeline
Subsequent to the submittal of the original application, the applicant conducted a structural
investigation of the existing lattice tower and determined that it was not structurally
capable of supporting the proposed equipment. On November 21, 2011 the applicant
submitted revised plans for review and consideration, and further revisions were submitted
February 22, 2012 to address staffs comments. The ARB reviewed the project for the first
time at its March 15,2012 meeting and provided four comments to the applicant. The first
con1ll1ent was on the placement of two Air Conditioning (AC) units on the exterior wall of
the equipment structure. A fenced enclosure is now proposed, so the AC units are no
longer needed. The second comment was on using a stick built structure as opposed to a
prefabricated structure. A fenced enclosure is now proposed, with the wood material and
color to match the adjacent building. The third comment was about reorienting the
equipment structure siding from perpendicular to horizontal to reinforce the horizontality
of the Bayland Environment. The fenced enclosure includes horizontally oriented wood
boards. The fourth con1ll1ent was to choose a paint color that matches the adjacent
buildings.
PROJECT DESCRIPTION
The project is a replacement tower having sin1ilar characteristics as the existing lattice
tower on the site, for the purpose of providing a beacon as well as an appropriate structure
to attach wireless communication facilities, and associated equipment located in a fenced
enclosure at grade, with appropriate screening, including landscaping at the base of the
proposed tower. The applicant has provided technical information in the attached project
description letter (Attachment D) and a color rendering is included in the plan set.
There are two noteworthy differences between the existing lattice tower and the
replacement lattice tower. First, the proposed tower would be rotated approximately 45
degrees to facilitate the placement and mounting of the proposed antennas in their optimal
directions. Secondly, while the dimensions of the replacement lattice tower's base are the
same as the original (12' x 12'), the width of the tower as it rises in height has been
noticeably increased, which would result in greater visibility when compared to the
existing tower. Additionally, the replacement tower's platform (where the beacon light
would be located) is eight feet by eight feet whereas the existing tower's platform is
approximately six feet by six feet. The height of the proposed tower (measured to the top
of the beacon) would remain unchanged from that of the existing tower, at 67 feet.
The landscape plan indicates new drought-tolerant plants and irrigation for the entire
median island. The Eucalyptus trees and Oleander shrubs would be replaced with
Baylands-compliant species, including three multi-stem Marina Madrone trees. Heavy
duty wood pylons would be located periodically along the perimeter, connected with
"nautical" rope (as suggested by staff rather than bollards originally proposed). Several
low soil mounds, a meandering dry creek bed composed of river rocks, and boulders are
proposed to complete the transformation of the median island. Finally, the pathway to
access the equipment shelter would be composed of crushed oyster shells.
IlPLN-00254 Page 3 of5
The fenced equipment enclosure would have "stained rustic wood siding" to be consistent
with the existing adjacent building's color. Associated color samples and material board
will be presented at the ARB meeting. The elevations have been detailed to indicate that
the coaxial cables will be routed down the tower and into the fenced equipment enclosure.
DISCUSSION
The ARB is requested to consider the tower design, ground-based equipment and the
fenced enclosure, and the screening proposed for the new antennas, along with the draft
AR findings in Attachment A. Staffs analysis of the project is noted below.
Baylands Design Guidelines
Staff provided these guidelines to the applicant and directed the applicant to improve the
landscaping plan from the original submittal. The color and nlaterials proposed for the
equipment shelter, and refinements to the proposed tower elevations, resulted from
discussion with staff. Staff is of the opinion the project design meets the intent of these
guidelines (relevant section(s) attached as Attachment D).
Because the project is near the Baylands Nature Preserve as shown on the location map
(Attachment C), staff reviewed the project using the Site Assessment and Design
Guidelines for the Palo Alto Baylands Nature Preserve (prepared for the City of Palo Alto
in December 2003 by Catalyst). The guidelines are intended to achieve projects that
respect the landscape character, establish a distinctive identity and set a standard of quality
within the preserve. The proposed landscape plan emphasizes drought tolerant, non
invasive, native plants.
Zoning Compliance
The development standards for wireless communication facilities (WCF) allow "stand
alone" facilities to reach a height of 65 feet above grade. The existing tower and proposed
replacement tower exceeds this linlit by two feet, and this structure can be replaced in the
same general location. The top height at the top of the new antennas is proposed to be
52 '2", which is lower than the maximum height allowed for antennas. The zoning code
(P AMC Section 18.42.110) specifies that the equipment shall be the minimum size
needed, screened from public views, and architecturally compatible with the project site.
The antennas are required to be designed to minimize visibility. Staff is of the opinion the
project achieves these specifications.
Public Comments
No.written public comments have been received for this project. Several members of the
public called to discuss the project but their comments were all in favor of the project due
to increased cell phone coverage in the area, described as having spotty service including
frequent dropped calls.
IlPLN-002S4 Page 4 ofS
Noise
AT &T has provided a noise ~tudy that shows compliance with the City's noise ordinance.
P AMC Section 9.10.050 specifies the public property noise limit as "no person shall
produce on public property a noise level more than 15 dB above the local ambient at a
distance of 25 feet or more from the source." The local ambient noise level for this area is
60 dBA. Therefore to violate the noise ordinance, noise production has to exceed 75 dBA
at a distance of 25 feet away from the source. The combined noise level produced by the
equipment cabinets is approximately 64.7 dBA at 25 feet away fronl the pole.
ENVIRONMENTAL REVIEW
The project is categorically exempt from the provisions of the California Environmental
Quality Act (CEQA) per section (15303). .
ATTACHMENTS
Attachment A:
Attachment B:
Attachment C:
Attachment D:
Attachment E:
Attachment F:
Attachment G:
ARB Findings for Approval (to be provided under separate cover)
Draft Conditions of Approval (to be provided under separate cover)
Location Map
Project Description Letter*
Baylands Design Guidelines excerpt
Project Plans (ARB members only)*
Photo Simulations*
* Prepared by Applicant; all other attachments prepared by Staff
COURTESY COPIES
Valerie Tallerico, Trillium Consulting [vtallerico@trilliumcos.com]
Tom Johnson, Trillium Consulting [tjohnson@trilliumcos.com]
Prepared By: Scott McKay, AICP -Associate Planner~
Manager Review: Amy French, AICP -Chief Planning Offi~
IlPLN-00254 Page 5 of5
ATTACHMENT A
ARCHITECTURAL REVIEW FINDINGS
1901 Embarcadero Road / Application No. 11PLN-00254
The project is consistent with all relevant Architectural Review findings in P AMC Section
18.76.020(d) including the following:
1. The design is consistent and compatible with applicable elements of the Palo Alto
Comprehensive Plan.
This finding can be made in the affirmative in that the project, as conditioned, incorporates a
more streamlined design that conforms with policies that encourage quality development that is
compatible with surrounding development and public spaces. The conditions of approval,
including Architectural Review Board recommendations, will ensure a high quality ·design and
compatibility with adjacent and nearby uses. The proposed project satisfies the following
Comprehensive Plan programs, policies and goals:
• (B-13) Support the development of technologically-advanced communications
infrastructure and other improvements that will facilitate the growth of emerging
telecommunications industries; and
• (B-14 ) Work with electronic information network providers to maXImIze potential
benefits for Palo Alto businesses, schools, residences, and other potential users.
2. The design is compatible with the immediate environment of the site.
This finding can be made in the affirmative in that the proposed design, as conditioned, is
consistent with the surrounding buildings materials and colors and utilizes Baylands compliant
plants and landscaping elements.
3. The design is appropriate to thefonction of the project.
This finding can be made in the affirmative in that the project design of the fenced equipment
enclosure is not excessive for the intended use.
4. In areas considered by the board as having a unified design character or
historical character, the design is compatible with such character;
This finding can be made in the affirmative in that the project, as conditioned, employs a
Baylands compliant plant palate and landscape features that are unique to the Baylands area.
5. The design promotes harmonious transitions in scale and character in areas
between different land uses;
1
This finding is not applicable to this project.
6. The design is compatible with approved improvements both on and off the site;
This finding can be made in the affirmative in that the project, as conditioned, has been reviewed
by the City of Palo Alto Utilities Department, the Public Works Department, and the
Transportation Division to ensure compatibility with improvements in the vicinity of the
proposed project.
7. The planning and siting of the various functions and buildings on the site create
an internal sense of order and provide a desirable environment fo~ occupants,
visitors and the general community.
This finding is not applicable to this project.
8. The amount and arrangement of open space are appropriate to the design and the
function of the structures.
This finding is not applicable to this project.
9. Sufficient ancillary functions are provided to support the main functions of the
project and the same are compatible with the project's design concept.
This finding is not applicable to this project.
10. Access to the property and circulation thereon are safe and convenient for
pedestrians, cyclists and vehicles.
This finding is not applicable to this project.
11. Natural features are appropriately preserved and integrated with the project.
This finding is not applicable to this project.
12. The materials, textures, colors and details of construction and plant material are
appropriate expression to the design and function and whether the same are
compatible with the adjacent and neighboring structures, landscape elements and
functions.
This finding can be made in the affirmative, in that the project, as conditioned, will incorporate
colors and textures for the fenced equipment enclosure that mirror existing adjacent buildings.
Additionally, the Baylands compliant vegetation and landscaping elements are compatible with
adjacent landscape elements and functions.
2
13. The landscape design concept for the site, as shown by the relationship of plant
masses, open space, scale, plant forms and foliage textures and colors create a
desirable functional environment and whether the landscape concept depicts an
appropriate unity with the various buildings on the site.
This finding can be made in the affirmative in that the project, as conditioned, will employ a
variety of plants and other landscape elements to create a desirable and functional environment.
Additionally, by utilizing Baylands compliant plants and landscaping features the project
enhances the unity of landscape from one site to the next.
14. Plant material is suitable and adaptable to the site, capable of being properly
maintained on the site, and is of a variety which would tend to be drought
resistant and to reduce consumption of water in its installation and maintenance.
This finding can be made in the affirmative, in that the project design, as conditioned, employs
water conserving plants and landscaping that is compliant with the Baylands Area.
15. The project exhibits green building and sustainable design that is energy efficient,
water conserving, durable and nontoxic, with high-quality spaces and high
recycled content materials.
This finding can be made in the affirmative in that the project design, as conditioned, employs
water conserving plants and landscaping and will comply with all applicable Green Building
Program requirements.
16. The design is consistent and compatible with the purpose of architectural review
as set forth in subsection (a).
This finding can be made in the affirmative in that the project design, as conditioned, promotes
visual environments that are of high aesthetic quality and variety.
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ATTACHMENT B
ARCHITECTURAL REVIEW
DRAFT CONDITIONS OF APPROVAL
1901 Embarcadero Road I Application No. 11PLN-00254
The plans submitted for Building Permit shall be in substantial compliance with the plans
received January 22, 2013, except as modified by these conditions of approval as listed below.
These conditions of approval shall be printed on the cover sheet of the plan set subnlitted with
the Building Permit application.
PLANNING DEPARTMENT
1. Prior to the City's issuance of any permits, licenses, or other written authorizations for
the new replacement lattice tower infrastructure, associated equipment and utility
infrastructure upgrades, AT&T shall enter into a lease, license, permit or other written
contract with the County of Santa Clara, acting by its Roads and Airports Department,
which shall be subject to the City's approval, or with the City of Palo Alto, acting by
its Real Estate Division, which shall not be subject to the County's approval, for the
ground-based, fenced equipnlent area and enclosure as well as for the placement of
new wireless antennas, tower infrastructures, associated communications equipment
and any utility infrastructure or upgrades to be installed or constructed at, on or about
the Palo Alto Airport Beacon Tower.
2. Upon submittal of an application for a building permit, the project is required to
comply with the City's Green Building Program (PAMC 16.14). The project is
required to complete a green building application, and implement the programs
requirements in building plans and throughout construction. More information and the
application can be found at http://www.cityofpaloalto.orglgreenbuilding and all
questions concerning the City's Green Building Program should be directed to
Sustainability Planner Dionne Early at (650) 329-2189.
3. If during excavation and construction activities, any archaeological or human remains
are encountered, construction shall cease and the Santa Clara County Medical
Examiner's office shall be notified to provide proper direction on how to proceed. If
any Native American resources are encountered during construction, construction
shall cease immediately until a Native American descendant, appointed by the Native
American Heritage Commission of the State of California, is able to evaluate the site
and nlake further recommendations and be involved in mitigation planning.
4. To the extent permitted by law, the applicant shall indemnify and hold harmless the
City, its City Council, its officers, employees and agents (the "indemnified parties)
from against any claim, action, or proceeding brought by a third party against the
indemnified parties and the applicant to attack, set aside or void, any permit or
approval authorized hereby for the Project, including (without limitation) reimbursing
the City its actual attorneys fees and costs incurred in defense of the litigation. The
City may, in its sole discretion, elect to defend any such action with attorneys of its
1
own choice.
5. The building permit plan set shall include a detailed landscape and irrigation plan
encompassing on-and off-site plantable areas out to the curb as approved by the
Architectural Review Board. A Landscape Water Use statement, water use
calculations and a statement of design intent shall be submitted for the project. A
licensed landscape architect and qualified irrigation consultant will prepare these
plans, to include: (a) All existing trees (if applicable) identified both to be retained and
removed including street trees. (b) Complete plant list indicating tree and plant
species, quantity, size, and locations. (c)Irrigation schedule and plan. (d)Fence
locations. (e) Lighting plan with photometric data. (f) Trees to be retained shall be
irrigated, aerated and maintained as necessary to ensure survival. (g) All new trees
planted within the public right-of-way shall be installed per Public Works (PW)
Standard Planting Diagram #603 or 604 (include on plans), and shall have a tree pit
dug at least twice the diameter of the root ball. (h) Landscape plan shall include
planting preparation details for trees specifying digging the soil to at least 30-inches
deep, backfilled with a quality topsoil and dressing with 2-inches of wood or bark
mulch on top of the root ball keeping clear of the trunk by I-inch. (i) Automatic
irrigation shall be provided to all trees. For trees, PW Detail #513 shall be included on
the irrigation plans and show two bubbler heads mounted on flexible tubing placed at
the edge of the root ball. Bubblers shall not be mounted inside an aeration tube. The
tree irrigation system shall be connected to a separate valve from other shrubbery and
ground cover, pursuant to the City's Landscape Water Efficiency Standards. Irrigation
in the right-of-way requires a street work permit per CPA Public Works standards. CD
The Landscape Plan shall ensure the backflow device is adequately obscured with the
appropriate screening to minimize visibility (planted shrubbery is preferred, painted
dark green, decorative boulder covering acceptable; wire cages are discouraged).
6. Mandatory Landscape Architect (LA) Inspection Verification to the City: The LA of
record shall verify the performance measurements are achieved with a separate letter
of verification to City Planning staff, in addition to owner's representative for the
following: Tree and Shrub Planting Specifications, including delivered stock, meets
Standards in the CPA Tree Technical Manual, Section 3.30 .. 3.50. Girdling roots and
previously topped trees are subject to rejection.
PRIOR TO OCCUPANCY
7. The Planning Department shall be in receipt of written verification that the Landscape
Architect has inspected all trees, shrubs, planting and irrigation and that they are
installed and functioning as specified in the approved plans.
8. Prior to final sign off, contractor or owner shall contact the project planner (Scott
McKay 650-617-3113) to inspect and verify Special Conditions relating to the
conditions for structures, fixtures, colors and site plan accessories.
POST CONSTRUCTION
9. All landscape and trees shall be maintained, watered, fertilized, and pruned according
2
to Best Management Practices-Pruning (ANSI A300-2001 or current version). Any
vegetation that dies shall be replaced or failed automatic irrigation repaired by the
current property owner within 30 days of discovery.
UTILITIES ENGINEERING -WATER GAS WASTEWATER DIVISION
10. Our database shows a 10" ACP water main going through the Island in the location of
the new AT&T shelter. If the water main is found to be under the footprint of the
shelter it needs to be relocated. The approved relocation of the water main/service will
be performed at the cost of the person/entity requesting the relocation.
11. The applicant shall submit a completed water-gas-wastewater service connection
application -load sheet for any utilities required from City of Palo Alto Utilities
(water).
12. The applicant shall submit improvement plans for utility relocation or construction.
The plans must show the size and location of all underground utilities within the
development and the public right of way including meters, backflow preventers, fire ..
service requirements, sewer mains, sewer cleanouts, sewer lift stations and any other
required utilities.
13. Trees can not be planted within 10 feet of existing water, gas or sewer lines or meters.
Utility vaults, transformers, utility cabinets, concrete bases, or other structures can not
be placed over existing water, gas or wastewater mains/services. Maintain l'
horizontal clear separation from the vault/cabinet/concrete base to existing utilities as
found in the field. If there is a conflict with existing utilities, Cabinets/vaultslbases
shall be relocated from the plan location as needed to meet field conditions.
14. An approved reduce pressure principle assembly (RPP A backflow preventer device) is
required for all existing and new water connections from Palo Alto Utilities to comply
with requirements of California administrative code, title 17, sections 7583 through
7605 inclusive.
UTILITIES ENGINEERING .. ELECTRICAL DIVISION
GENERAL
15. The applicant shall comply with all the Electric Utility Engineering Department
service requirements noted during plan review.
16. The applicant shall be responsible for identification and location of all utilities, both
public and private, within the work area. Prior to any excavation work at the site, the
applicant shall contact Underground Service Alert (USA) at 1-800-227-2600, at least
48 hours prior to beginning work.
17. The applicant shall submit a request to disconnect all existing utility services and/or
meters including a signed affidavit of vacancy, on the form provided by the Building
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Inspection Division. Utilities will be disconnected or removed within 10 working days
after receipt of request. The demolition permit will be issued after all utility services
anellor meters have been disconnected and removed.
18. The applicant is responsible for all labor and materials to bring service to the location
of the proposed project site. Current electric distribution maps do not show any
120/240Vor 120/208V services at the proposed location.
INCORPORATE IN SUBMITTAL FOR ELECTRIC SERVICE
19. A completed Electric Application and a full set of plans must be included with all
applications involving electrical work.
20. Industrial and large con1ID.ercial customers must allow sufficient lead-time for Electric
Utility Engineering and Operations (typically 8-12 weeks after advance engineering
fees have been paid) to design and construct the electric service requested.
21. Only one electric service lateral is permitted per parcel. Utilities Rule & Regulation
#18.
22. If this project requires padmount transformers, the location of the transformers shall be
shown on the site plan and approved by the Utilities Department and the Architectural
Review Board. Utilities Rule & Regulations #3 & #16 (see detail comments below).
23. The developer/owner shall provide space for installing padmount equipment (i.e.
transformers, switches, and interrupters) and associated substructure as required by the
City.
24. The customer shall install all electrical substructures (conduits, boxes and pads)
required from the service point to the customer's switchgear. The design and
installation shall be according to the City standards and shown on plans. Utilities Rule
& Regulations #16 & #18.
25. Location of the electric panel/switchboard shall be shown on the site plan and
approved by the Architectural Review Board and Utilities Department.
26. All utility nleters, lines, transformers, backflow preventers, and any other required
equipment shall be shown on the landscape and irrigation plans and shall show that no
conflict will occur between the utilities and landscape materials. In addition, all
aboveground equipment shall be screened in a manner that is consistent with the
building design and setback requirements.
27. For services larger than 1600 amps, the customer will be required to provide a
transition cabinet as the interconnection point between the utility's padmount
transformer and the customer's main switchgear. The cabinet design drawings must be
submitted to the Electric Utility Engineering Department for review and approval.
4
28. For underground services, no more than four (4) 750 MCM conductors per phase can
be connected to the transformer secondary terminals; otherwise, bus duct must be used
for connections to padmount transformers. If customer installs a bus duct directly
between the transformer secondary terminals and the main switchgear, the installation
of a transition cabinet will not be required.
29. The customer is responsible for sizing the service conductors and other required
equipment according to the National Electric Code requirements and the City
standards. Utilities Rule & Regulation #18.
30. If the customer's total load exceeds 2500 kV A, service shall be provided at the
primary voltage of 12,470 volts and the customer shall provide the high voltage
switchgear and transformers.
31. For prinlary services, the standard service protection is a padmount fault interrupter
owned an maintained by the City, installed at the customer's expense. The customer
must provide arid install the pad and associated substructure required for the fault
interrupter.
32. Any additional facilities and services requested by the Applicant that are beyond what
the utility deems standard facilities will be subject to Special Facilities charges. The
Special Facilities charges include the cost of installing the additional facilities as well
as the cost of ownership. Utilities Rule & Regulation #20.
33. Projects that require the extension of high voltage primary distribution lines or
reinforcement of offsite electric facilities will be at the customer's expense and must
be coordinated with the Electric Utility.
DURING CONSTRUCTION
34. Contractors and developers shall obtain permit from the Department of Public Works
before digging in the street right-of-way. This includes sidewalks, driveways and
planter strips.
35. At least 48 hours prior to starting any excavation, the customer must call Underground
Service Alert (USA) at 1-800-227-2600 to have existing underground utilities located
and marked. The areas to be check by USA shall be delineated with white paint. All
USA markings shall be removed by the customer or contractor when construction is
complete.
36. The customer is responsible for installing all on-site substructures (conduits, boxes
and pads) required for the electric service. No more than 270 degrees of bends are
allowed in a secondary conduit run. All conduits must be sized according to National
Electric Code requirements and no 1/2 -inch size conduits are permitted. All off-site
substructure work will be constructed by the City at the customer's expense. Where
mutually agreed upon by the City and the Applicant, all or part of the off-site
substructure work may be constructed by the Applicant.
5
37. All primary electric conduits shall be concrete encased with the top of the encasement
at the depth of 30 inches. No more than 180 degrees of bends are allowed in a primary
conduit run. Conduit runs over 500 feet in length require additional pull boxes.
38. All new underground conduits and substructures shall be installed per City standards
and shall be inspected by the Electrical Underground Inspector before backfilling.
39. The customer is responsible for installing all underground electric service conductors,
bus duct, transition cabinets, and other required equipment. The installation shall meet
the National Electric Code and the City Standards.
40. Meter and switchboard requirements shall be in accordance with Electric Utility
Service Equipment Requirements Committee (EUSERC) drawings accepted by Utility
and CPA standards for meter installations.
41. Shop/factory drawings for switchboards (400A and greater) and associated hardware
must be submitted for review and approval prior to installing the switchgear to: Gopal
Jagannath, 1;>.E. -Supervising Electric Project Engineer -Utilities ,Engineering
(Electrical) -1007 Elwell Court -Palo Alto; CA. 94303.
42. Catalog cut sheets may not be substituted for factory drawing submittal.
43. All new underground electric services shall be inspected and approved by both the
Building Inspection Division and the Electrical Underground Inspector before
energIZIng.
44. Any relocation of existing utilities or substructure shall be done, if feasible, at
applicant's expense.
AFTER CONSTRUCTION & PRIOR TO FINALIZATION
45. The customer shall provide as-built drawings showing the location of all switchboards,
conduits (number and size), conductors (number and size), splice boxes, vaults and
switch/transformer pads.
PRIOR TO ISSUANCE OF BUILDING OCCUP AQNCY PERMIT
46. The applicant shall secure a Public Utilities Easement for facilities installed on private
property for City use.
47. All required inspections have been completed and approved by both the Building
Inspection Division and the Electrical Underground Inspector.
48. All fees must be paid.
49. All Special Facilities contracts or other agreements need to be signed by the City and
applicant.
6
FIRE DEPARTMENT
50. The applicant shall submit a completed copy the document entitled "Optional
Checklist for Local Government to Determine Whether a Facility is Categorically
Excluded." If the applicant is required to submit an Environmental Assessment (EA)
to the FCC, please indicate if it has been submitted and the date submitted.
51. A Fire Department key Knox Box is required if the building or site does not have 24-
hour key availability.
52. The site shall have at least one sign per owner/service provider that indicates the
company's name, site number, and 24 emergency number as a minimum. This labeling
shall be readable from a distance not less than 25 feet. Safety labeling (in addition to
any required FCC labeling) may be required if there is the ability of anyone fitting the
FCC definition of "general population" who may unknowingly come within the FCC
prescribed Maximum Permissible Exposure (MPE) safety range of the RF emitting
device.
53. A Hazardous Materials Registration Form is required to be submitted and approved
prior to bringing any hazardous materials on site. Forms also available at
http://www. unidocs.org.
54. A Hazardous Materials Business Plan (HMBP) is required to be submitted and
approved prior to bringing any hazardous materials on site. (pAMC17.16.010). Forms
are available at http://www.unidocs.org. Note: The site chemicallist may be below the
state Hazardous Materials Business Plan reporting thresholds but the site is not
exempted from P AMC 17 hazardous materials regulations (i.e. Hazardous Materials
Registration, double containment, labeling, etc.)
55. Emergency generators installed on site shall meet the Guidelines for Installation of
Temporary and Permanent Aboveground Diesel Fuel Tanks for Emergency and
Standby Power Systems Located Outside of Buildings (UN-018). See
http://www.unidocs.org for generator guidelines. Any emergency power equipment
shall meet the Palo Alto noise ordinance at all times. Please note for permanent or
temporary generators: Information that must be submitted and on file are: A
Hazardous Materials Business Plan or Hazardous Materials registration, a site specific
spill control/containment plan, and other operation / emergency procedures. Any
refueling and/or maintenance (oil change, etc.) on site shall be addressed in the plan.
Additionally the contingency plan portion shall include spill reporting and clean up
provisions.
56. Hazardous Materials Closure (Fire Dept. Closure Permit) is required prior to vacating
any site which contained hazardous materials.
57. A fire extinguisher with a minimum of2AI0BC rating shall be installed.
58. A valid Use and Occupancy Permit is required.
7
UTILITIES -MARKETING
59. Please be advised that as of January 1,2011, the City of Palo Alto is enforcing the new
State Green Building Code (CALGreen) with local amendments for Palo Alto.
Compliance with the tier 2 requirements for outdoor water efficiency is required for
landscapes of any size when the project is a new construction, rebuild, or addition with
greater than 1,000 square feet of building area. All other projects need to meet the tier
1 requirements if a landscape area included in the scope of the project is greater than __
1,000 square feet. Prior to issuance of either a Building Permit or Grading Pennit, the
applicant will need to demonstrate conlpliance by providing the following
documentation when applying for a Building and/or Grading Permit: (1) Landscape
Water Use Statement, (2) Water Use Calculations, (3) Irrigation Plan (4) Grading Plan
(5) Landscape Design and Planting Plan. Applicants will need to provide this
documentation to the City at the Building Permit Review stage. All landscape
worksheets and Green Building Permit Applications can be found on the City's
website at www.cityofpaloalto.org/greenbuilding Please contact Catherine Elvert in
Utilities Marketing Services at (650) 329-2417 catherine.elvert@cityofpaloalto.org.
60. The City of Palo Alto's recycled water ordinance (Ordinance No. 5002) became
effective on Jlme 12, 2008. This ordinance has requirements for irrigation and dual
plunlbing that are effective immediately for certain types of projects in Palo Alto. For
most projects, this requires a separate irrigation system utilizing purple irrigation pipe,
appropriate fittings and the installation of an approved backflow prevention device.
Please visit www.cityofpaloalto.org/les for more information on the recycled water
ordinance.
END OF CONDITIONS
8
Curb Edge
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The City of
Palo Alto
Smckay, 2012-0J.09 13:02:34
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1901 Embarcadero Road
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The City of Paio Alto aSSlKnea no responsibility for any errors01989to 2012 City of PaioAHo
ATTACHMENT D
City of Palo Alto
Conditional Use Permit Application
for
AT&T Mobility
Wireless Teleconlnlunications Facility
at
1901 Embarcadero Road
Palo Alto, CA 94303
Site Id: CN4060 -Palo Alto Airport
Revised per design change January 2, 2013
Applicants Representative:
Trillium Telecom Services
Valerie Tallerico
7901 Stoneridge, Suite 503
Pleasanton, CA 94588
Proposed AT&T Mobility
Wireless Telecommunications Facility
Application Request
AT&T requests the approval of a Wireless Telecommunications Facility at 1901
Embarcadero Road. The proposed project will consist of a locating a wireless facility on an
new 67' tall lattice tower to replace the existing 67' lattice tower currently installed on the
property. AT&T's twelve panel antennas will be located at 52'-2". The associated
equipment cabinets are to service the facility and will be located at ground level in a new
equipment enclosure. The enclosure will be enclosed by a wooden fence that is 8' tall with
horizontal boards.
Antenna and Equipment Details
A total of9 panel antennas are proposed mounted on the lattice tower. The associated
equipment cabinets will be located on the ground adjacent to the pole and will be located in a
in a fenced enclosure. The existing lattice tower will be replaced with a new lattice tower of
approximately the same size and height.
Detailed project synopsis.
• Seven (7) cabinets inside an 8' wooden fence enclosure, with space for (3) future
cabinets.
• Nine (9) panel antennas
• Six (6) Diplexers
• Fifteen (15) RRUs
• Two (2) GPS antennas to serve for satellite positioning and E911 Compliance
• Coax cable runs from equipment to panel antenna and fiber lines (18)
• Telephone and electrical service will be extended to the site
• The facility will operate in compliance with all applicable local, state and federal
regulations
Land Use Analysis
The site is developed with an airport. AT&T Mobility proposes to replace an existing lattice
tower to mount their panel antennas.
The proposed telecommunications facility was designed to provide efficient PCS coverage
without creating off-site visual impact. The proposed use of the replacement tower to locate
the antennas will minimize any off-site visibility (see attached photo simulations).
1
Site Selection Considerations
Selecting a site for use as PCS telecommunications facility is a laborious task. Radio
frequency (RF) engineers must first identify an area within the system where radio coverage
is inadequate or non-existent. A team of AT&T representatives visits the area in order to
locate a viable candidate for use as a wireless communications facility ("WCF")
There are four factors that determine a site candidate's viability:
1. Ability to lease the necessary property. The site candidate must have adequate space
for the placement of radio equipment and antennas. Existing telecommunications
facilities are first evaluated for co-location feasibility before a new site is pursued.
The landowner must be willing to lease the area for use as a WCF. The ability to
lease the site on acceptable terms and conditions is often the most important
determinant ofa site candidate's feasibility as a WCF.
2. Ability to construct the proposed site. The site candidate must have not only
adequate space for the required equipment, but is must also be able to structurally
support the antennas and the equipment. There must be adequate 24-hour access to
the site for construction and maintenance of the WCF, and power and telephone lines
must be accessible on site.
3. Must conform to the zoning code. The site candidate needs to be located within a
land use (zoning) designation that is compatible with the telecommunications uses.
In each search area, specific zoning classifications are researched to locate
installations in areas where potentially significant environmental impacts are
mitigated to a level of insignificance. Such preferred locations are often in
commercial or industrial zones and property where other existing communications
installations have already been approved and/or can be co-located in the future.
Every effort is made to avoid, wherever possible, locating sites in area which may
create a visual impact to public view-sheds.
4. Ability to provide adequate RF coverage and connect to surrounding sites. After the
initial visits by site acquisition staff to a site, a coverage map is generated to
determine how effectively each site can send and receive radio signals. Topography
and other natural or man-made obstructions are evaluated for radio signal blockage to
assess line-of-site transmission issues pertaining to the target coverage area. The
ground elevation, height, and topography are all factors that impact the effectiveness
of radio coverage for the target coverage area and ability to connect to the
surrounding WCF sites within the existing AT &T network.
Proposed Site Selection, Collocation and Local Coverage
The need for improved service is determined by three factors:
1. Market demand
2. Capacity requirements for a specific geographic area.
3. Need to provide continuous coverage from one site to another in a particular
geographic region
Collocation -There are no viable candidates for collocation within the search ring area
which meet the coverage objectives for this site.
2
Proposed Site Selection -AT&T chose the current location for the site because the proposed
facility will be located on a lattice tower that will be installed to replace the existing tower
which will minimizes off site visibility.
The maximum height of the proposed antennas is 52'-2". The necessary height for the PCS
antennas is determined by an engineering study. This study evaluates radio signal
propagation over the desired coverage area based on topography, geographic features and
possible signal attenuation due to season changes in vegetation. It is desirable to have a
direct line of sight from the array of panel antennas to the required coverage objective.
The purpose of the proposed site is to provide continuous coverage to the City of Palo Alto
within the AT&T wireless antenna network. Please see attached RF Coverage Maps for
further detail and signal propagation.
Technical Site Description
The type of antenna proposed is a panel antenna. There will be a total of three (3) sectors,
with three (3) antennas per sector located on the replacement lattice tower. In addition, one
(2) Ground Positioning System (GPS) antennas will be mounted to assist with satellite
position and E911 compliance. The equipment cabinets will be installed on the ground to
support the facility.
AT&T maintenance personnel will periodically visit the site for maintenance and repair.
These tasks are performed on an as-needed basis, approximately once a month or less.
FAA Compliance -The proposed WTF will meet and comply with all applicable FAA
regulations.
FCC Compliance -The proposed communications facility will operate in full compliance
with the regulations and development standards of the Federal Communications Commission
(FCC).
ANSI Compliance -The site will operate under full compliance with United States standards
for radio emissions as published by the American National Standards Institute ("ANSJ").
Potential for Future Collocation
The lease agreement between AT&T and the property owner does not preclude collocation of
other wireless telecommunication facilities.
3
Project Contributors:
City of Palo Alto
Mentors
Virginia Warheit
Matt Raschke
GregBetts
Daren Anderson
Gayle Likens
Chris Raffirty
Deborah Bartens
Emily Renzel
Gordon Baillie
Consultant:
Catalyst
Tom Richman, principal-in-charge
BACKGROUND AND PURPOSE
The Baylands Nature Preserve is a unique natural re
source within the City of Palo Alto.
As a recreational and ecological resource, the Palo Alto
Baylands Nature Preserve is enjoying unprecedented
use and appreciation. Once ignored or used for indus
trial or commercial activities, the area is now one of the
largest protected wetlands in the South San Francisco
Bay, and provides habitat for abundant wildlife
ing many endangered and protected species. Both local
residents and naturalists from distant places visit the
Baylands to experience its unique landscape character.
As evidence of this new recognition, the Preserve was
recently featured in the New York Times as a "must-see"
for tourists to the Silicon Valley area. This increased at
tention also brings pressure to accommodate the needs
of users. Until now, recreational facilities have been
designed and installed in an ad-hoc basis, resulting
in visual clutter and inconsistency. As the community
recognizes the value of the Baylands Nature Preserve,
there is an opportunity and responsibility to treat the
Baylands with greater attention and care.
Palo Alto 8aylands Nature Preserve Design Guidelines
BACKGROUND AND PURPOSE
This document provides both an assessment of existing
conditions and Design Guidelines for
as fences, signs, paving, and other elements. If imple
mented, these Design Guidelines will provide a consis
tent approach to design, placement, and construction
of common landscape elements that respects the land
scape character, establishes a distinctive identity, and
sets a standard of quality within the Baylands.
These Guidelines were developed throueh a site inves-
tigation with City of Palo Alto staff and two "mentors":
Emily Renzel, Baylandschampion, and Gordon Baillie,
former Baylands Senior Ranger.
3
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USING THE BAYLANDS DESIGN GUIDELINES
USING THE BAYLANDS DESIGN GUIDELINES
The Baylands Design Guidelines were prepared to help implement the Baylands Master Plan and the Baylands-re
lated policies and programs in the Palo Alto Comprehensive Plan. The Design Guidelines should be used in con
junction with these policy documents.
The Baylands Design Guidelines are intended to be used when designing or reviewing projects located in any part
of the Baylands. While the more specific guidelines are primarily applicable to the dedicated parkland, the design
principles and concepts should also be applied in the service and commercial areas when designing or reviewing
projects for compatibility with the special aesthetic qualities and environmental conditions unique to the Bay
lands.
Project Review
Both public and private projects in the Baylands that include any new construction or installation or changes to
existing landscaping, plants, paving, signs, other site features and furnishings, or the exterior of buildings and struc
tures are subject to Site and Design review. (PAMC Section 18.82)
When a project in the Baylands is anticipated, it will be helpful to contact the Planning Division as early as possible
to discuss the project and the review process. The Planning review will assist with the interdepartmental coordina
tion, public interest, and consideration of environmental issues that are often involved in Baylands projects. Most
minor projects can be reviewed at the staff level without the need for a public hearing, while large projects may
require review by the Architectural Review Board or by the Planning Commission'and City Council.
Palo Alto 8aylands Nature Preserve Design Guidelines 7
SITE OVERVIEW AND LANDSCAPE CHARACTER
10
The San Francisco Bay Trail runs around and through Baylands. The portion of the trail within the Preserve's bor
der connects the Palo Alto Baylands to Shoreline Park to the south, and East Palo Alto city limits to the north. The
main vehicular entry to the Preserve is Embarcadero Road which passes the Baylands Athletic Center, Palo Alto
Municipal Golf Course, commercial development and the Palo Alto Airport before coming to the Preserve entry
where you can go left or right. To the left you pass the Duck Pond, Ranger Station with adjacent picnic facilities,
Lucy Evans Baylands Nature Interpretive Center, and Harriet Mundy Marsh, before coming to the parking lot and
Sailing Station. To the right you pass the Regional Water Control Plant, Recycling and Refuse area, and then enter
the parking lot for Byxbee Park Hills. The Preserve can also be accessed by trails along East Bayshore Road, which
parallels Highway 101.
The Baylands Nature Preserve is a distinctive landscape notable for openness and subtlety. Because of the shallow soils,
brackish water, and persistent winds, the landscape is flat and treeless, defined by the expansive horizon-a big sky,
flat water, and waving grasses. The natural color palette is a study in muted tones. This simple, serene landscape is a
dramatic contrast, and a welcome respite, from the more complicated landscapes found in the Peninsula: bustling cities,
rolling hills, and restless beaches.
Insert Byxbee Park text here
(see text attached on page 63 at end of document)
Palo Alto 8aylands Nature Preserve Design Guidelines
GENERAL DESIGN PRINCIPLES
GENERAL DESIGN PRINCIPLES
The following design principles are suggested to reflect and preserve the Baylands' unique landscape character.
Use only muted, natural colors. Choose materials and finishes that will weather without degrading.
Avoid bright, reflective colors, including white. Allow wood to weather to gray, allow metals to rust to dark brown.
Confine bright colors to small areas where necessary for safety. For example, it is preferred to use a small, low
mounted "No Parking" sign rather than paint extensive red curbs.
The landscape is exposed to constant salt -laden winds. Select materials that will weather well, last a long time, and
require little to no maintenance. Cor-ten or mild steel which weathers to dark brown is preferable to galvanized
steel which does not weather to a dark color.
Preserve the horizon line with low and horizontal elements.
The dominant landscape feature of the Baylands is the horizon line of the open, treeless landscape and the flat water
of the bay. Vertical elements that puncture this line have a large impact on the view. Therefore, keep elements low
and horizontal. Preserve an unobstructed view of the horizon line.
Mount fences, enclosures, and identity signs low to the ground.
Posts should not protrude above the sign panel or fence fabric, no finials or decorative post tops should puncture
the horizon line.
Reduce the size and mounting heights of regulatory signs.
Urban standards for regulatory signs, such as stop signs (typically 7' mounting height, 36" diameter sign), should
be relaxed in recognition of the low traffic volumes and speeds in the Preserve.
Design for practicality.
Maintenance and improvement budgets are tight. Ensure that all improvements are practical, easily maintained and
have low life-cycle costs.
11
SALVAGED UTILITY
POLE BOLLARD,
TAPER UP
SLOPE SURFACE OF
FOOTING AWAY
FROM BOLLARD
CONCRETE FOOTING
NOT TO SCALE
BOLLARD
TAMPERPROOF
CONNECTING LINK
-------) \ ~"'-'(:: ,7 , \ L \,.,
318" GENE -r " . " RAL PURPOSE CHAIN ~
(NON-GALVANIZED)
3/8" 0 EYE BOLT
WITH CONNECTING LINK
I 1-
9' -0" MAX
3/8" GENERAL PURPOSE ----"""""'\
CHAIN INSERTED THROUGH
d .. : . 1 -1/4" HOLES DRILLED IN POSTS
~ (NON GALVANIZED)
~:.:-~-:::H:i; .•
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It
~.
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~ :
== :2
Palo Alto Baylands Nature Preserve Design Guidelines
VEHICLE CONTROL: BOLLARD AND CHAIN
HOT DIPPED GALVANIZED
EYE BOLT 3/S" X 6-
~--SEE DETAIL ABOVE
FOR CHAIN-END
ATTACHMENT TO
BOLLARD
CA.I ~
"'!
I
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,D:~t ·_ •. i'~ __ -r N i= -t--, -4.-
Bollard and Chain
37
PAVING: TRAILS
Crushed stone trail along the levee near San Francisquito Creek.
Note how stone is contained by plastic edging. Because the trail
is above the earth level, the plastic edge is uneven.
Older asphalt trail remains usable after years of neglect.
Newly constructed asphalt trail with bright yellow center line
and white sidelines.
42
ASSESSMENT
Paving: Trails
Quality of materials and striping features vary signifi
cantly along pedestrian and bicycle trails in Baylands
park. Some trails are asphalt, others are crushed stone,
and some are crushed oyster shell. Each of these mate
rials are acceptable, depending on application.
Asphalt trails are generally inexpensive to install and
require little if any maintenance. Asphalt trails are the
most "road-like" material. This makes them comfort
able for cyclists, but less gentle on runners. Asphalt
trails can be painted with lane markings for clarity, but
bright yellow and white lines can be visually obtrusive
in the Baylands environment. Striping is not recom
mended unless absolutely required for safety.
Crushed stone trails (decomposed granite) are the most
common trail found in the Baylands. Installed prop
erly, this material is firm enough for cyclists, yet some
what giving for runners. It has a more rural appearance
than asphalt, but requires periodic maintenance and is
less durable than asphalt. Crushed stone trails are more
stable if built with some kind of constructed edge to
contain the granular stone material. This edge material
can be wood, recycled plastic, steel, concrete or similar
material.
Palo Alto Baylands Nature Preserve Design Guidelines
The Marsh Front Trail, near the Recycling Center, is
constructed using white oyster shell. The material is
aesthetically appealing, is forgiving for runners, acts
as a natural weed repellent, and helps birds with their
digestion. However, it is a more costly paving material
than asphalt or crushed stone.
FENCES AND ENCLOSURES: ENCLOSURES
Acceptable bathroom enclosure at Sailing Station parking lot.
Wood has been stained or painted gray to fit in with landscape.
. :
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Insufficient enclosure at Duck Pond parking lot. Wood stakes are
not tall enough to fully screen portable rest room. The design, ma
terial selection and construction detailing appear improvisational
and of marginal quality.
56
•
Palo Alto Baylands'Nature Preserve Design Guidelines
ASSESSMENT
Enclosures
A variety of functions in the Baylands must be enclosed
by opaque materials or screened from view. A principal
function requiring screening are port a-potties located
at the Duck Pond or Sailing Station.
Wood has been used to screen these port a-potty fa
cilities. At the Sailing Station, the enclosure is well con
structed and carefully designed. Wood boards painted
gray fully screen the porta potties and are securely at
tached to strong posts. At the Duck Pond, however, a
grape stake enclosure isn't tall enough to cover the en
tire height of the port a potty, and the construction is
a bit flimsy.
Over time other enclosures may be required to screen
other uses, such as utility boxes. Standard materials
and design will enhance the coherence of the Baylands
Preserve .
DESIGN GUIDELINE
Enclosures
A simple wood structure is recommended for enclo
sures in the Baylands.The structure uses 2 x 6" wood
boards set horizontally to reinforce the horizontality of
the Baylands environment. Two boards are laid adja
cent to each other with a 2" gap between each pair of
horizontal boards. This gap will reinforce the horizon
line and reduce the mass of the enclosure.
Unpainted, untreated redwood or cedar is recom
mended, which will weather to a soft grey. A natural
preservative or grey stain may be used to extend the life
of the wood.
4 X 4 WOOD POST, PRESSURE
TREATED DOUGLAS FIR (PTDF),
UNPAINTED, UNSTAINED,
ALLOWED TO WEATHER
::,. 2 X 6 WOOD SLATS, REDWOOD OR
CEDAR,
ALLOWED TO WEATHER
/',r 5;50'3 2" GAP
(EVERY OTHER SLAT)
Enclosure with Gate
Palo Alto 8aylands Nature PreseNe Design Guidelines
FENCES AND ENCLOSURES: ENCLOSURES
6" CONCRETE
CURB PROTECTION,
IF NECESSARY
• CONC. FILLED STEEL
c w C w w Z
Vol cz:
BOLLARD (IF NEC).
PAINT DARK GREY
Enclosure without Gate
Port-a-potty Enclosure
57