Date: September 17, 2013

To: Mark Helmbrecht, Presidio Trust Eddie Chan, Presidio Trust Peter Ehrlich, Presidio Trust

From: Flatiron Kiewit Joint Venture, prepared by Professional Tree Care Company and HNTB

Subject: Armistead Neighborhood Pruning and Removal Work Plan

This transmittal describes how Professional Tree Care (PTC) will conduct tree removals and pruning in the

Armistead neighborhood, commencing September 23rd. Expected duration will be approximately two months,

finishing in mid- to late-November.

This transmittal includes:

Narrative description of work describing staffing, tree protection measures, equipment and storage,

timing and duration of work, safety, traffic control, utilities, and wood chipping;

Table with staging requirements for tree removals and pruning;

Map showing location of trees by tag number;

Map showing staging areas and location of chipper; and, Series of four maps showing the aerial equipment staging and moving plan.

For additional information, contact Presidio Parkway Project Information Line at (415) 295-4636.

2828 Eighth St. Berkeley, CA 94710(510) 549-3954Fax (510) 549-3965ISA Certified Arborist #0938Contractor’s License #676952

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Armistead Neighborhood Pruning and Removal Work Plan

Prepared by Brian Fenske, The Professional Tree Care Company

Revised September 17, 2013

This work plan is based on a start date of 9/23/2013, pending approval by the Presidio Trust. Work

will start behind building 1256 and work north towards Lincoln Blvd. Expected duration is

approximately two months.

Staffing

All work will be conducted by a single 5-person crew, working under the continuous direction of a certified

arborist (Brian Fenske, Craig Hancock, or Ruben Vargas from PTC). Traffic spotters or other additional ground

personnel will also be needed for some tree work.

General Tree Protection Notes

All limbs and trees will be lowered using rigging. No material will be dropped in this area. No hooks will be

used during pruning of trees to be preserved. In general, tree work equipment will be staged in paved areas

(wherever possible). When an outrigger from the crane or man-lift needs to be on unpaved areas, a mat or

plywood will be used to protect any roots in the unpaved area. If a vehicle needs to be staged in an unpaved

area, ground protection mats or plywood will be used to protect tree roots.

Work Near Armistead Power Lines

No power outages will be necessary. All staff has been trained in working near power lines and several of

the tree workers who will be on the crew are certified line clearance tree workers.

Equipment and Storage

Equipment will include a man-lift/bucket truck, a crane, a wood chipper, and other rigging and cutting

tools. All vehicles will be stored at night along Armistead in the dirt shoulder area opposite building

1255. This area will be fenced with temporary 6 foot fence panels along Armistead Road with

returns, but the area will not be entirely enclosed or locked. Panel fences will include “Danger – Keep

2828 Eighth St. Berkeley, CA 94710(510) 549-3954Fax (510) 549-3965ISA Certified Arborist #0938Contractor’s License #676952

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Out” signs or equivalent. No equipment will be parked in residents' spaces overnight. Residents' spaces will only be used during work hours and will be reserved in advance.

Work Hours and Progression

Work will start after 8:00 AM daily and be completed by 4:30 PM daily. All debris will be cleaned up

from the day’s work by the end of every day. Equipment will be returned to overnight staging area.

Table 1 gives the approximate dates of the work as well as staging requirements (traffic control,

parking spaces, equipment, staffing, and utilities). Tree numbers ending with an “R” are to be

removed. The tree numbers without an “R” will only be pruned. Stumps will be left in place due to

their close proximity to preserved trees. The general progression of work will be as follows, but may

change based on the weather and the conditions encountered in the field.

Starting behind building 1256 the 5-person crew will work its way north towards Lincoln Blvd.

It will take approximately two weeks to get to the pathway that goes between buildings 1253

and 1251 (10/04/13).

We will continue working on the trees in front of 1251 for the next week.

After all of this work is complete, we will work down the pathway between 1253 and 1251

towards Ramsel Court and then behind building 1251. This work will take two weeks to

complete (10/22/13).

We will then start the work over buildings 1235 and 1236, this work will take approximately 3

days to complete.

We will then work our way out of Ramsel Court toward Armistead working in front of

buildings 1234 and 1211. This work should be completed by 10/29/13.

After this work is completed we will be working on the side of 1211, behind 1211 and behind

1234. This work should be less disruptive to traffic once the crew is completed on the side of

1211.

After the mitigation pruning work is performed, PTC will start the removals of selected trees on the

west side of Armistead. This work should take approximately two weeks. All work by PTC is expected

to be complete by mid- to late-November.

2828 Eighth St. Berkeley, CA 94710(510) 549-3954Fax (510) 549-3965ISA Certified Arborist #0938Contractor’s License #676952

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Protection of Residents and Visitors to the Area During Tree Work

PTC will use 6 orange plastic barriers (k-rail shaped “water wall” barriers) to delineate the work area.

“Keep Out” signs indicating that dangerous tree work is occurring in the trees above will be attached

to the barriers. Residents need to follow signage and instructions from tree workers in order to

ensure their personal safety during tree work. These barriers will also be used to close a portion of

the circle behind Ramsel court for staging cranes and lifts. A ground spotter will be on site at all times

to ensure that no members of the public approach or enter the work area.

Wood Chipping

A wood chipper will be required to process cut branches and trees for off-site disposal. The chipper

will be placed in each staging area as far away from the residences as possible. The chipper will be

oriented so that chipped wood will be directed away from the residences.

Traffic Control

When work is occurring over roadways, traffic controls will be used to ensure no vehicles enter tree

work areas. Flaggers will be used for work along Armistead and there may be brief periods when the

roadway is temporarily closed. For work along Ramsel Court, one side of the circular driveway will be

closed with plastic barricades

Parking Closures

We will work in close coordination with the Trust for any temporary use of reserved parking spaces.

Notification for reserved spaces will be conducted by the Trust and John Stewart Company in consultation with

PTC. Every attempt will be made to give the Trust at least one week’s notice of any reserved spaces needed

for staging.

Temporary No Parking signs will be used for non-reserved spaces. Every attempt will be made to install these

signs at least 3 work days before the space is needed.

2828 Eighth St. Berkeley, CA 94710(510) 549-3954Fax (510) 549-3965ISA Certified Arborist #0938Contractor’s License #676952

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ANSI Standards

As per our general practice, The Professional Tree Care Company will adhere to the ANSI Z 133.1-2012

Standards for Pruning, Repairing, Maintaining and Removing Trees and Cutting Brush Safety Standards. We

also follow the ANSI A300 Standard Practices for Pruning.

Table 1. Staging requirements for tree pruning and removals by Professional Tree Care Work, Armistead Area (numbers with a suffix "R" indicates a tree to be removed, no suffix indicates pruning)

PARKING

PLAN

Set Up

{unit #(s)} Start Date End Date

Rigging

Y/N

Parking Places Needed for Set Up

Traffic Control Y/N

Tree #'s to be

removed/pruned Exclusionary Barricades Signs and Tape

Ground

Crew

(monitors)

Y/N

Planned Power

Outages Needed

(Three Week Lead

Time)

A 1256 9/16/2013 9/18/2013 Y No Parkings spaces needed 5696, 5695R Yes, for chipping operations Y None

A 1255 9/19/2013 9/20/2013 Y No Parkings spaces needed 5649, 5689, 5687, 5690 Yes, for chipping operations Y None

A 1254 9/23/2013 9/25/2013 Y No Parkings spaces needed 5684, 5685, 5688, 7758 Yes, for chipping operations, Close pathway Y None

B 1251, 1253 9/26/2013 9/27/2013 Y Parking Spaces Needed: 249 5651, 5653, 5683, 5682, 5686 Yes, for chipping operations, Close pathway Y None

C 1251 9/30/2013 10/1/2013 Y Parking Spaces Needed: 245, 246,

247, 248

5654, 5657,5658 Yes, for parking space closures and chipping

operations

Y None

D 1251 10/2/2013 10/3/2013 Y No Parkings spaces needed 5660, 5661, 5662,5659 Yes for chipping operations and partial road

closures

Y None

E 1251 10/4/2013 10/4/2013 Y Road closures on one way side of

circular driveway

5665, 5668 Yes for chipping operations and partial road

closures

Y None

E 1251 10/7/2013 10/7/2013 Y Road closures on one way side of

circular driveway

5669R, 5672 Yes for chipping operations and partial road

closures

Y None

F 1251 10/8/2013 10/8/2013 Y Road closures on one way side of

circular driveway - Parking spaces

needed: 241, 242, 243, 244

5673R, 5675, 5679R Yes for chipping operations and partial road

closures

Y None

G 1238 10/9/2013 10/9/2013 Y Road closures on one way side of

circular driveway-Parking spaces

needed (none assigned)

5735, 5736R, 5737R Yes for chipping operations and partial road

closures, and parking spaces

Y None

H 1235, 1236 10/10/2013 10/11/2013 Y Road closures on one way side of

circular driveway - Parking spaces

needed: 237, 238, 239, 240

5738, 5739, 5741, 5742 Yes for chipping operations and partial road

closures, and parking spaces

Y None

I 1235 10/14/2013 10/14/2013 Y Road closures on one way side of

circular driveway - Parking spaces

needed (none assigned)

5743R, 5746 Yes for chipping operations and partial road

closures, and parking spaces

Y None

J 1234, 1211 10/15/2013 10/16/2013 Y Road closures on one way side of

circular driveway - Parking spaces

needed: 233, 234, 235

5730, 5731, 5732 Yes for chipping operations and partial road

closures, and parking spaces

Y None

K 1211 10/17/2013 10/18/2013 Y Road closures on one way side of

circular driveway - Parking spaces

needed (none assigned)

5707, 5708, 5709R Yes for chipping operations and partial road

closures, and parking spaces

Y None

L 1211 10/21/2013 10/22/2013 Y Shoulder closure and one lane of

traffic needs to be closed.

5710, 5711. 5712, 5713 Yes for chipping operations and partial road

closures, and parking spaces

Y None

L 1211 10/23/2013 10/23/2013 Y Shoulder closure and one lane of

traffic needs to be closed.

5714, 5715R Yes for chipping operations and partial road

closures, and parking spaces

Y None

L 1211 10/24/2013 10/24/2013 Y Shoulder closure and one lane of

traffic needs to be closed.

5716R, 5717, 5718 Yes for chipping operations and partial road

closures, and parking spaces

Y None

L 1211 10/25/2013 10/25/2013 Y Shoulder closure and one lane of

traffic needs to be closed.

5721, 5722R Yes for chipping operations and partial road

closures, and parking spaces

Y None

L 1211 10/28/2013 10/30/2013 Y Shoulder closure and one lane of

traffic needs to be closed.

5723, 5724, 5725, 5726R, 5727Yes for chipping operations and partial road

closures, and parking spaces

Y None

Tree Assessment Map

Armistead Altered Stand Assessment Area Presidio of San Francisco, CA

Prepared for: Flatiron-Kiewit Benicia, CA

May 2013

No Scale

Notes

Base map provided by: Presidio Trust

Numbered tree locations are approximate.

325 Ray Street Pleasanton, California 94566 Phone 925.484.0211 Fax 925.484.0596