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HomeMy WebLinkAboutFOOTHILLS MALL REDEVELOPMENT - MJA130006 - AGENDA - (13)12047 LA - 129 L A N D S C A P E P L A N T I N G D E T A I L S FORT COLLINS, CO FOOTHILLS MALL REDEVELOPMENT FOOTHILLS MALL REDEVELOPMENT Do not scale prints. Use figured dimensions. LOCATED IN THE SOUTHWEST QUARTER OF SECTION 25, TOWNSHIP 7 NORTH, RANGE 69 WEST OF THE 6TH PRINCIPAL MERIDIAN, CITY OF FORT COLLINS, COUNTY OF LARIMER, STATE OF COLORADO PDP SUPPLEMENT 0 1 / 1 8 / 2 0 1 3 LANDSCAPE NOTES 1. The soil in all landscape areas, including parkways and medians, shall be thoroughly loosened to a depth of not less than eight (8) inches and soil amendment shall be thoroughly incorporated into the soil of all landscape areas to a depth of at least six (6) inches by tilling, discing or other suitable method, at a rate of at least three (3) cubic yards of soil amendment per one thousand (1,000) square feet of landscape area. 2. A permit must be obtained from the City forester before any trees or shrubs as noted on this plan are planted, pruned or removed on the public right-of-way. This includes zones between the sidewalk and curb, medians and other city property. This permit shall approve the location and species to be planted. Failure to obtain this permit may result in replacing or relocating trees and a hold on certificate of occupancy. 3. The developer shall contact the City Forester to inspect all street tree plantings at the completion of each phase of the development. All trees need to have been installed as shown on the landscape plan. Approval of street tree planting is required before final approval of each phase. Failure to obtain approval by the City Forester for street trees in a phase shall result in a hold on certificate of occupancy for future phases of the development. 4. Please add the Tree Protection Specifications found in the LUC 3.2.1 G. Equivalent specifications may be used and additional specifications are encouraged. 5. Please add a note on the plans that addresses code requirements for tree pruning DQGUHPRYDO³$OOWUHHSUXQLQJDQGUHPRYDOVKDOOEHSHUIRUPHGE\D&LW\RI)RUW&ROOLQV OLFHQVHGDUERULVWDVUHTXLUHGE\FRGH´ 6. Cut and remove the top 1/3 to 1/2 of the wire basket and burlap, and all the twine from before finishing backfilling. 7. Please add a detail and specifications for transplanting existing trees on the site. This could include time of year, method of transplanting, rootball size, guying, after care and irrigation schedule etc. It is recommended that specification state that an International Society of Arboriculture (ISA) Certified Arborist will oversee tree transplanting and shall inspect all transplanted trees at a regular interval over the first two years. Recommendation on care shall be provided to the owner. 8. Add forty feet between shade trees and City streetlights. Fifteen feet between ornamental trees and street lights. 9. Add twenty feet between trees and traffic control signs and devices. 10. Add ten feet between trees and water or sewer mains. 11. Add six feet between trees and water or sewer service lines. 12. Four feet between trees and gas lines. TREE TRANSPLANTING SPECIFICATIONS Overview There are numerous trees that will be relocated on the Foothills Fashion Mall site as a component of the redevelopment. All trees have been evaluated and graded for suitability for relocation on the tree survey report. It is understood that a variety of techniques and equipment will need to be utilized to complete the projects. Depending on tree species, size and location, methods and techniques may vary. Below are general guidelines and specifications of the project. Once the project scope is more thoroughly defined, with the precise list of trees to be relocated, locations and timelines, a more detailed plan can be designed and implemented. An International Society of Arboriculture Certified Arborist with demonstrated experience in moving large trees should monitor the tree relocation project. One arborist should be designated 12047 LA - 130 L A N D S C A P E P L A N T I N G D E T A I L S FORT COLLINS, CO FOOTHILLS MALL REDEVELOPMENT FOOTHILLS MALL REDEVELOPMENT Do not scale prints. Use figured dimensions. LOCATED IN THE SOUTHWEST QUARTER OF SECTION 25, TOWNSHIP 7 NORTH, RANGE 69 WEST OF THE 6TH PRINCIPAL MERIDIAN, CITY OF FORT COLLINS, COUNTY OF LARIMER, STATE OF COLORADO PDP SUPPLEMENT 0 1 / 1 8 / 2 0 1 3 Shrub and Groundcover Planting D Scale: 1/2" = 1'-0" LA-130 Ornamental Detail B Scale: 1/2" = 1'-0" LA-130 Ball and Burlap Canopy Tree 4" Caliper or Smaller A Scale: 1/2" = 1'-0" LA-130 Multi-Trunk Tree C Scale: 1/2"=1'-0" LA-130 LA - 131 12047 LA - 131 L A N D S C A P E H Y D R O Z O N E K E Y P L A N 00 100' 200' SCALE: 1"=100'-0" LIMIT OF WORK LIMIT OF WORK LIMIT OF WORK LIMIT OF WORK LIMIT OF WORK LIMIT OF WORK LIMIT OF WORK LIMIT OF WORK LIMIT OF WORK LIMIT OF WORK LIMIT OF WORK S. COLLEGE AVE. STANFORD ROAD E. FOOTHILLS PKWY. FORT COLLINS, CO FOOTHILLS MALL REDEVELOPMENT FOOTHILLS MALL REDEVELOPMENT LOCATED IN THE SOUTHWEST QUARTER OF SECTION 25, TOWNSHIP 7 NORTH, RANGE 69 WEST OF THE 6TH PRINCIPAL MERIDIAN, CITY OF FORT COLLINS, COUNTY OF LARIMER, STATE OF COLORADO HYDROZONE LEGEND: NORTH Do not scale prints. Use figured dimensions. PDP SUPPLEMENT 0 1 / 1 8 / 2 0 1 3 LA - 133 LA - 132 LA - 134 WATER NEED (gallons/s.f.) 2095160 LOW 299508 2993684 WATER BUDGET CHART HYDROZONE AREA (s.f.) ANNUAL WATER USE (gallons) MODERATE 209516 10 3 898524 TOTAL 509024 Avg: 5.88 LIMIT OF WORK LIMIT OF WORK LIMIT OF WORK LIMIT OF WORK FORT COLLINS, CO FOOTHILLS MALL REDEVELOPMENT FOOTHILLS MALL REDEVELOPMENT LOCATED IN THE SOUTHWEST QUARTER OF SECTION 25, TOWNSHIP 7 NORTH, RANGE 69 WEST OF THE 6TH PRINCIPAL MERIDIAN, CITY OF FORT COLLINS, COUNTY OF LARIMER, STATE OF COLORADO HYDROZONE LEGEND: NORTH SCALE: 1"=50'-0" Do not scale prints. Use figured dimensions. PDP SUPPLEMENT 0 1 / 1 8 / 2 0 1 3 12047 LA - 134 L A N D S C A P E HYDROZONE PLAN MATCHLINE LA - 134 MATCHLINE LA - 131 as the project lead and work with the Landscape Architect to achieve desired design goals and maximize quality and efficiency. Subcontractor Qualifications It is understood that a variety of subcontractors will be required to relocate the required trees in a timely manner. The following requirements should be implemented to ensure quality of operations: ‡6XEFRQWUDFWRUVHQJDJHGLQWUHHUHORFDWLRQPXVWKDYHH[SHULHQFHLQWUHHUHORFDWLRQVSHFLILFDOO\ in those 10 inches in diameter breast height (dbh) and greater and a detailed plan, prepared by the same Subcontractor, for moving the trees called for on any contract. ‡$Q\WUHHWUDQVSODQWLQJ6XEFRQWUDFWRUHQJDJHGPXVWSURYLGHEDFNJURXQGLQIRUPDWLRQWRLQFOXGH a resume, descriptions ofsimilar projects, photographs and client contact names and phone numbers for at least three successful transplants of trees 10 inches dbh and greater. ‡$OOWUDQVSODQWLQJVXEFRQWUDFWRU¶VSODQVVKDOOGHVFULEHDQGRULOOXVWUDWHLQGHWDLOR7KHPHWKRG of preparing trees for transplant, including root pruning where called for. o The method of excavating at the time of transplanting. o The method of containing root balls for various sizes of trees. o The proposed root ball width and depth for each size category of tree. o The equipment proposed to move the trees and its routing on the site for all aspects of the operation. o The schedule for all work related to this specification and any other details or suggestions, which vary from the methods, described in this specification. Season Transplanting operations shall occur when the ground is not frozen or otherwise in a satisfactory condition for working, after leaf fall and before bud break on deciduous trees. This shall be between October15th to April 15th unless otherwise deemed appropriate by the Certified Arborist. Allowable General Methods Trees less than 12 inches dbh may be hand dug or machine dug and may be moved by means RIDQK\GUDXOLF³WUHHVSDGH´,QWKHFDVHRIDWUHHVSDGHWKHGLDPHWHURIWKHVSDGHPXVWEH VXIILFLHQWWRDOORZIRUDQDGHTXDWHURRWEDOODVGHVFULEHGLQ³7UDQVSODQWLQJ2SHUDWLRQ´EHORZ Trees 12 inches dbh and greater may not be moved by a mechanical tree spade and may require root pruning and special digging considerations described in other sections of this specification. Ground Preparation Transplant Location: The new locations to receive transplants shall be staked out for approval prior to digging the trees. In all cases, these pits shall be dug and prepared prior to completion of final digging of transplant trees. Pits shall be thoroughly watered on the day of transplanting prior to receiving plants. The excavated subsoil and topsoil shall be set-aside in separate stockpiles for reuse in backfilling. Where, in the opinion of the Certified Arborist, the subgrade material is unsuitable, it shall be removed and replaced with adequate subgrade material and topsoil. 7UDQVSODQW3LW'LDPHWHUDQG'HSWK:KHUHD³WUHHVSDGH´LVXVHGWKHH[FDYDWHGKROHVKRXOGEH made with the same spade used to excavate and remove the tree and shall be the same diameter and depth as the root ball of the transplanted tree. Where a tree spade is not used, the diameter shall be a minimum of 3 feet greater than the diameter of the root ball. Depth shall be sufficient to ensure that the root ball will sit in its new location on undisturbed soil such that the surface of the root ball will bear the exact relationship to adjacent new finish grades as it did in its original location. Marking Orientation of Trees: Prior to transplanting, the Contractor shall tie a flag of cloth or plastic ribbon to a branch to mark the north side of the plant as a guide for positioning the plant in the new location. Tying of Branches If necessary, to facilitate positioning of equipment and help avoid injury to the tree, tying up the branches of low-branched plants using heavy twine or burlap strips is allowable, if approved in advance by the Certified Arborist in consultation with the Regional Landscape Architect. Each point of contact of twine on tree trunks or branches shall be protected with burlap. Crown Pruning Dead, injured or diseased wood shall be removed in accordance with good horticultural practice. Additional pruning may be required as determined by the Certified Arborist. Pruning/removal of any broken or dead branches as a result of the move should be performed immediately. Pruning is to be limited to only the removal of dead or damaged before and after transplanting. Under no circumstance should live limbs be removed from trees to be transplanted without approval from the Certified Arborist. Transplanting Operation Root Ball: In all cases, the diameter of the ball of native soil to be preserved intact shall be at least 10 times the diameter of the tree trunk at breast height (dbh) unless otherwise approved by the Certified Arborist. The depth of the root ball shall be sufficient to preserve the majority of large roots characteristic of the given tree growing in that particular soil type as determined by the approved Transplanting Sub Consultant in consultation with the Certified Arborist. Unless otherwise specified, the depth shall be approximately 60% of the ball width. . Precaution: Exposed roots shall never be allowed to dry out. If for any reason the plant will sit with roots or root ball exposed, roots shall be protected by packing them in moist straw, sphagnum, peat moss, bark or other suitable material and then wrapping with moist burlap. Where a Tree Spade is Used: A tree spade of sufficient size must be used to meet the root ball diameter specifications stated above. The approved destination hole shall first be excavated (it is assumed that this shall be with the same spade to be used to move the tree) and thoroughly watered. The tree shall then be excavated, moved and planted, taking care to avoid damage to tree branches and trunk. The tree trunk shall be protected as necessary with burlap or protective padding. The tree shall be set with the same compass orientation and at the same depth as its original location. Where a Tree Spade is Not Used: The destination hole shall be prepared to the approved size and depth prior to digging the tree to be transplanted. Topsoil and subsoil shall be set-aside in separate piles. The soil surface in the hole shall be thoroughly watered. A circle shall be inscribed around each tree to the approved anticipated size of the root ball. The root ball shall be trimmed to proper size and shape. Loosening of the soil around the roots shall be avoided by cutting remaining woody roots cleanly with a sharp spade, saw, shears or other approved means. Root balls shall be securely contained by: wrapping in burlap secured WLJKWO\ZLWK³GUXPODFHG´WZLQHDZRRGHQ³VRLOFUDWH´RURWKHUDSSURYHGPHDQVZKLFKVKDOO ensure a solid, secure root ball. The lower 1foot of tree trunk shall be wrapped in burlap if it is anticipated that any twine will be in contact with the trunk. Trees shall be moved by crane, winch RURWKHUDSSURYHGPHDQVSHUWKH6XEFRQWUDFWRU¶VDSSURYHGSODQWRQHZORFDWLRQ3ODQWVVKDOOEH handled so that the ball will not be loosened or broken and shall be set with same compass orientation and at the same relative elevation as in their original location The pit around the ball shall be backfilled, beginning with stockpiled subsoil. After the soil has been thoroughly firmed around the lower half of the ball, any burlap shall be cut away from upper half of the ball and the remaining burlap adjusted to prevent the formation of air pockets. Soil shall be firmed at 1 foot intervals and thoroughly settled with water the same day of planting, to within 6 inches of the finish grade. Topsoil shall then be added from on-site stockpiles to within 3 inches of the finish grade. Finishing Surface After Backfilling: The Contractor shall cultivate and rake over finished planting areas and shall leave them in an orderly condition. Staking: Staking or other approved support system must secure all trees that are relocated. All staking shall be done immediately after planting and all stakes and wire maintained. Plants shall stand plumb after staking. Stakes shall be placed outside of the root ball and shall be driven a minimum of 2 feet into the ground. A minimum of three anchor points per tree should be utilized and cables should be attached to tree straps or other tree specific material designed for this application. Each tree over 4 inches in diameter shall have four (4) stakes. Bracing points should EHEHWZHHQ»DQGXSWKHFDQRS\WRSURYLGHDGHTXDWHVXSSRUW7KLVV\VWHPVKRXOGDOORZIRU some movement of the trees and should not be over tightened. The system should be in place for a minimum of 1 year following transplant. Follow-Up Treatments All coniferous species to receive fall foliar applications of an anti-transpirant to reduce winter desiccation injury for three years following transplant. All pines to receive annual trunk spray applications of permethrin or carbaryl based insecticides yearly for five years to reduce risks of bark beetle attacks. Monthly monitoring of the trees and site by a qualified arborist to monitor irrigation, mulch layers, pest issues and other environmental or biotic factors that may be present for five years following transplant. Annual fall applications of a soil applied biostimulant, and an injectable mycorrhizae product to be applied in root zone areas. Bi-weekly monitoring of the site during the times of the year while the irrigation system is not operational until adequate snow cover is present. In the event that tank or injected irrigation is required, it could be supplemented with a yucca-based wetting agent to increase penetration. This practice would be required for three years post transplant.