ATTACHMENT_02_-_140P8624Q0026_-_SOW.pdf

REQUEST FOR QUOTATION (RFQ) 140P8624Q0026

SCOPE OF WORK

SAN FRANCISCO MARITIME NATIONAL HISTORICAL PARK

Tree Work on Van Ness Avenue In Aquatic Park

PART 1: GENERAL

1.01 DESCRIPTION

This work will include pruning 27 Platanus Acerifolia trees and one Ficus tree, replacement/planting of one Platanus Acerifolia tree, and the removal of one Pinus Canariensis tree. The work is located on the west side of the Aquatic Park, on Van Ness Avenue. Contractor shall make every effort to protect the historic landscape and fabric from damage. The contractor should be comfortable working in a variety of physical conditions. All work must be performed by a qualified tree service contractor who is an ISA certified Arborist, understands arboriculture and is licensed by the State of California (www.cslb.ca.gov/About_Us/Library/Licensing_Classifications/C- 61_Limited_Speciality/D-49_-_Tree_Service.aspx), to perform arborists services.

See project specification details below.

1.02 GENERAL CONDITIONS AND INFORMATION

A. These trees are owned by the Department of Interior, National Park Service, herein after called NPS, and is maintained by San Francisco Maritime National Historical Park, (SAFR). The trees are historic. Care must be taken to protect and avoid negatively impacting the surrounding ornamental landscape, turfgrass area, irrigation system, street, paths, and sidewalks. Damage to these areas will be repaired or replaced in-kind at Contractors expense. Work area is greatly impacted by pedestrian, bicycle, and vehicle traffic. The contractor will be responsible for pedestrian, bicycle, and vehicle traffic control/safety before, during and to close of the project to ensure public safety. The NPS will attach “no parking” signage at parking stalls needed for workspace.

B. Any particulars described for the work involved is given for guidance to the Contractor, however, it is the Contractor’s responsibility is to take measurements, dimensions, counts, etc. It is highly recommended those interested arrange a walk-through with the Contracting Officer’s Representative (COR, Micah Wright, 415-859-0898, email: micah_wright@nps.gov ) to identify trees to be serviced and work to be addressed.

http://www.cslb.ca.gov/About_Us/Library/Licensing_Classifications/C-61_Limited_Speciality/D-49_-_Tree_Service.aspx http://www.cslb.ca.gov/About_Us/Library/Licensing_Classifications/C-61_Limited_Speciality/D-49_-_Tree_Service.aspx mailto:micah_wright@nps.gov

C. All work described in this specification is to be performed in accordance with the provisions of the NPS Contract and Scope of Work. Work that will result in additional cost shall be carried out only when authorized in writing by the Contracting Officer.

D. The Contractor shall be responsible for removing and disposing of any debris from the areas where work is performed and is generated by the Contractor.

E. The Contractor shall immediately notify the Contracting Officer of any ambiguities, inconsistencies and errors discovered in this specification or between contracting documents and existing conditions.

PART 2: SCOPE OF WORK/ SERVICES

A. Tree Pruning These services shall remove all deceased, damaged, dead and/or crossed branches, including branches that pose a safety hazard for the public. Tree service contractor shall also thin canopies by 25%, yielding an atheistically pleasing, balanced appearance. Contractor will “lift” canopy by 20’ from ground level (COR to specify final height). Contractor shall haul away and properly dispose all refuse generated by work. Work site must be left in a clean state.

Contractor must use best management practices to avoid “lion-tailing” (branch removal on the lower two-thirds of the branch), “topping” (pruning tree to predetermined crown limit, often at internodes) and/or pruning that only leaves branches only at edge of crown. Note: The Ficus shall be pruned to encourage a pendulous/weeping shape. Care must be taken to avoid pruning techniques resulting in changing the shape.

B. Tree Planting One Platanus Acerifolia (London Plane Tree) is to be replaced/planted.

Although the above ground portion has already been removed, it is assumed that stump and roots are present. Tree selected by contractor must be a 24” box container size tree; must be healthy, disease/pest free; must free of mechanical/environmental damage; must be vigorous in growth; must have a central leader and need minimal pruning to correct any crossing limbs. Trees must be stabilized with the 2”x 2” tree stakes (placed as far out perimeter if the root ball/drip line as possible). NPS COR must approve prior to planting. The contractor must remove any roots from previous tree to successfully install the tree per the specifications (see detail). Contractor shall water tree for a one-week period and provide, place and zip-tie two irrigation bags to the base of the tree and fill them with water.

C. Tree Removal

One Pinus Canariensis shall be removed. Stump and roots shall be ground or otherwise remove to a 15-foor diameter. Contractor shall dismantle the tree.

and place sections on the ground using rigging/crane operations as necessary.

All tree sections/parts/components and debris material generated from work shall be removed and disposed of properly. Area shall be raked/broomed clean upon job completion. All work must be performed in a manner to ensure the surrounding landscape (turf), hardscape and structures are not negatively impacted. See protections section below for more information on preventing damage to area. This is a newly installed turf area. COR will monitor closely for negative impacts.

D. Protections / Preservation / Coordination:

Contractor will set up protections adjacent to any object, structure and/or landscape to protect from damage. For extra heavy branches/tree parts, rigging must be employed to lower branches so as not to damage property. If needed, ground protection must be used protect lawn areas from any potential damage from work. Ground protection must be used beneath any vehicle traversing turf area. Any divots, depressions, and or tracks resulting from work shall be repaired at the contractor’s expense. COR will monitor closely for negative impacts. The NPS will attach “no parking” signage at parking stalls needed for workspace. Ground protection must be used under work area to prevent negative impacts to turf. This is a newly installed turf area.

E. Contractor Employee and Public Safety:

Work area is greatly impacted by pedestrian, bicycle, and vehicle traffic. The contractor will be responsible for pedestrian, bicycle, and vehicle traffic control/safety before, during and to the close of the project to ensure public safety. The contractor is required to work safely and to use proper personal protective equipment.

F. Quality Assurance

1. The Government will monitor the Contractor's performance by performing scheduled and unscheduled surveillance. The Government will also monitor and investigate customer complaints for the purpose of ensuring whether or not the Contractor is providing quality service. The Contracting Officer or his/her designated representative may schedule progress meetings as required.

2. Overview of Removal Methods: Contractor shall use standard commercial practices/methods and adhere to all Federal, OSHA, and State guidelines.

Contractor shall submit a work plan with their proposal which outlines the methods proposed to perform this contract. Plan shall address at a minimum;

tree pruning methods.

3. Evaluation of Removal Methods: NPS will monitor the contractor's performance to ensure compliance with the solicitation, Statement of Work, contract, and any accepted proposal/method utilized.

4. Tree pruning will meet professional standards.

PART 3: INSPECTION / ACCEPTANCE / CLOSEOUT

A. Remove all tools, equipment, surplus, materials, and rubbish and materials generated from the worksite.

B. Surfaces that are damaged due to performed work shall be restored to condition existing prior to work (or better).

C. Schedule the final inspection with park COR, Micah Wright, at

(415) 859-0898.