DIVISION 1 - GENERAL REQUIREMENTS - IDEAS-EC

3 PART 3 EXECUTION3 .1 WORK LIMITS - CONSTRUCTION ZONE WARNING TAPEA. Install where necessary to maintain work limits as shown, and as requested by the ContractingOfficer. Keep a minimum of two rolls on site at all times. Tape shall not be substituted forfencing.3 .2 PROTECTION INSTALLATIONA. Provide temporary work limit fencing, tree trunk wrap, and tree barricades to protect existingtrees, plants and critical root zones as directed by the Contracting Officer. Protections shall be inplace before any excavation work or heavy equipment is allowed on site.3 .3 CONSTRUCTION FENCINGA. Four-foot high orange plastic mesh construction fencing shall be supported securely to steelposts, 5 feet on center, and driven into the ground, installed as directed by the ContractingOfficer.B. Within the perimeter work limits, protect groups of shrubs and small trees and undisturbed soilsas directed by the Contracting Officer with 4-foot-high construction fencing. Firmly anchorfences to the ground a minimum of 2 feet from the nearest plant. Completely and continuouslyenclose areas of trees and shrubs to be protected with fencing.3 .4 TREE TRUNK PROTECTIONA. For isolated trees up to 4 feet dbh (diameter breast height) within the work limits, provide treetrunk protection as directed by the Contracting Officer.B. Wrap wood lathe snow fencing continuously around the circumference of the trunk from the baseto a height of not less than 6 feet. Wrap shall be a minimum of two layers. Fence wrap shall besecured around the trunk by three strands of jute or other natural fiber rope around top, middleand bottom of the tree trunk protection. No anchoring or nailing in trees will be allowed.3 .5 PROTECTION MAINTENANCEA. Only after all tree and plant protection has been installed, and the Contracting Officer hasinspected and given written approval of the tree and plant protection, will the Contractor beallowed to begin excavation. All tree and plant protection shall be maintained throughout theduration of this project.B. If any fencing, barriers, staking or marking, which designates protected areas, limits ofdemolition or work limits, is knocked down, moved or destroyed, the Contractor will immediatelymove the work operation to another area, wholly or in part, or suspend work operations, until thefence or other protection is repaired to the Contracting Officer's satisfaction at the Contractor'sexpense. Time lost due to such stoppage will not be considered basis for adjustment ofcompletion date nor additional payment.C. Parking vehicles and storing materials or supplies shall be confined to areas designated as stagingareas on the plans or as specifically approved by Contracting Officer. Vehicle and materialstorage activities are strictly prohibited from protected and fenced sensitive soil and vegetationareas.01120-202/08 NATURAL FEATURES PROTECTION