Attachment 17 - 01 57 22 TREE PRESERVATION.pdf
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- Attached to
- Multiple Award Construction Contract (MACC)/Indefinite-Delivery Indefinite-Quantity (IDIQ) Little Rock AFB, AR Federal contract opportunity
- Solicitation number
- FA446021R0009
About this file
This solicitation requests proposals for an indefinite-delivery indefinite-quantity multiple award construction contract to provide general construction services at Little Rock Air Force Base in Arkansas. Work under individual task orders may include new construction, repair, alteration, demolition, and design-build services for facilities such as administrative buildings, industrial structures, maintenance buildings, warehouses, communications installations, personnel support structures, recreation facilities, lodging, medical buildings, training buildings, ranges, roads, and utilities including jet fuel systems. In-house design capabilities or access to designers is required to support design-build project delivery. The Department of the Air Force seeks to award multiple contracts for task orders that will involve sustainment, restoration, and modernization projects over an extended period of performance.
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TREE PRESERVATION 01 57 22 - 1
SECTION 01 57 22 – TREE PRESERVATION
PART 1 - GENERAL
1.01 TREE PRESERVATION
A. Tree preservation is a proactive process that seeks to make as little impact as possible on existing trees and to mitigate the effects of construction.
1.02 REFERENCES
Tree City USA Bulletin # 24 Web Link: http://www.arborday.org/programs/treecitybulletinsbrowse.cfm
PART 2 - PRODUCTS (Not Used)
PART 3 - EXECUTION
3.01 PROCEDURES TO PROTECT TREES
A. Contractor shall protect as much of the root zones as possible. Establish and maintain a highly visible physical barrier five feet outside of the drip line to keep equipment and materials out. The most significant roots are in the top 18 to 24 inches of soil. Roots may extend two to three times the length of the branches. An orange mesh fencing barrier shall be used to separate construction activity from sensitive roots. Ensure these areas are respected by all parties working on the site.
B. Use wood chips to mulch the root zones of existing trees to remain.
C. Do not trench or change the existing grade in the root zone of an existing tree. If a utility must be routed beneath a tree then horizontal boring must be utilized.
D. Contractor must plan access to the site that will be efficient and protect tree root zones.
E. Contractor shall design parking lots and/or sidewalks to incorporate and protect existing and new trees. Do not use soil sterilants. See Tree City USA Bulletin # 24.
F. Contractor shall not prune existing trees.
G. Contractor shall not fertilize existing trees.
H. Establish approved concrete truck washout areas on site away from protected tree root zones to prevent chemical contamination of soil and vegetation. Contain all run-off on site.
I. Water the entire area beneath the branches with 1 inch of water each week during dry spells during construction.
J. Use signs to identify tree protection zones and alert workers to them. Do not use the trees themselves to support the signs. Do not drive nails or other objects into trees.
K. Contact the Natural Resources Manager, Ms. Dana Hardage at (501) 987-3681,when laying out root protection zones for assistance.
END OF SECTION – TREE PRESERVATION
http://www.arborday.org/programs/treecitybulletinsbrowse.cfm
TREE PRESERVATION 01 57 22 - 2
| SECTION 01 57 22 – TREE PRESERVATION |
| PART 1 - GENERAL |
| 1.01 TREE PRESERVATION |
| A. Tree preservation is a proactive process that seeks to make as little impact as possible on existing trees and to mitigate the effects of construction. |
1.02 REFERENCES
| PART 2 - PRODUCTS (Not Used) |
| PART 3 - EXECUTION |
| 3.01 PROCEDURES TO PROTECT TREES |
| A. Contractor shall protect as much of the root zones as possible. Establish and maintain a highly visible physical barrier five feet outside of the drip line to keep equipment and materials out. The most significant roots are in the top 18 to 24... |
| B. Use wood chips to mulch the root zones of existing trees to remain. |
| C. Do not trench or change the existing grade in the root zone of an existing tree. If a utility must be routed beneath a tree then horizontal boring must be utilized. |
| D. Contractor must plan access to the site that will be efficient and protect tree root zones. |
| E. Contractor shall design parking lots and/or sidewalks to incorporate and protect existing and new trees. Do not use soil sterilants. See Tree City USA Bulletin # 24. |
| F. Contractor shall not prune existing trees. |
| G. Contractor shall not fertilize existing trees. |
| H. Establish approved concrete truck washout areas on site away from protected tree root zones to prevent chemical contamination of soil and vegetation. Contain all run-off on site. |
| I. Water the entire area beneath the branches with 1 inch of water each week during dry spells during construction. |
| J. Use signs to identify tree protection zones and alert workers to them. Do not use the trees themselves to support the signs. Do not drive nails or other objects into trees. |
| K. Contact the Natural Resources Manager, Ms. Dana Hardage at (501) 987-3681,when laying out root protection zones for assistance. |
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