<p>IOWA STATE UNIVERSITY OWNER OFFICIAL CAPITAL PROJECT TITLE 2018 年 4 月 7 日 OWNER CAPITAL PROJECT (CP) NUMBER SECTION 31 12 00 SITE CLEARING</p><p>PART 1 GENERAL</p><p>.1.1 SECTION INCLUDES</p><p>.A Demolition and removal of pavement materials and other items as shown on Drawings.</p><p>.B Recycling of removed materials as much as possible</p><p>.C Identification and capping of active utilities as shown on Drawings.</p><p>.D Removal of utilities as shown on Drawings.</p><p>.E Filling, compacting, and grading of demolition area within the project limits or as otherwise shown on Drawings.</p><p>.1.2 RELATED REQUIREMENTS</p><p>.A Section 31 00 00 Earthwork</p><p>.B Section 31 05 13 Soils For Earthwork</p><p>.C Section 31 20 00 Earth Moving</p><p>.1.3 CONSTRUCTION SITE FENCE TYPES</p><p>.A The following table and definitions describe type and location requirements for construction fencing:</p><p>No ground disturbance – Ground disturbed, Ground disturbed, Duration of Work suitable walking surface excavated, or trenched. excavated, or trenched. maintained at all times. Depth = 0” to 48”. Depth exceeds 48”. Immediate Work Type D Type C Type C Areas* < 24 hours Type C Type C Type C</p><p>0 to 30 days Type B Type B Type B</p><p>> 30 days Type B Type B Type A *Immediate work areas are continuously supervised areas where short term work is concluded and the area restored before the end of the work day.</p><p>Type A Galvanized steel chain link fencing supported by galvanized steel pipe posts Minimum 6 feet high with top rail Hinged, lockable gates to control access points</p><p>Type B Wood lath snow fencing supported by steel or fiberglass T-posts Fence 4 feet high and T-posts spaced not more than 10 feet apart</p><p>Type C Orange plastic net fencing supported by steel or fiberglass T posts Fence 4 feet high and T-posts spaced not more than 8 feet apart</p><p>Type D Yellow nylon rope arranged in 3 spaced strands and supported by steel or fiberglass T-posts, self supporting standards or other Owner approved support Fence 4 feet high and supports spaced not more than 8 feet apart Yellow caution tape may substitute for rope if supported by twine to prevent wind damage.</p><p>DESIGN PROFESSIONAL NAME SITE CLEARING DESIGN PROFESSIONAL PROJECT NUMBER 31 12 00 - 1 OWNER OFFICIAL CAPITAL PROJECT TITLE IOWA STATE UNIVERSITY OWNER CAPITAL PROJECT (CP) NUMBER APRIL 7, 2018</p><p>.1.4 ADMINISTRATIVE REQUIREMENTS</p><p>.A Utilities Coordination: .1 Arrange and pay for disconnecting, removing, capping, and/or plugging utility services as noted on Drawings. .a Notify affected utility company in advance and obtain approval before starting work. .b Schedule disconnects with Owner. .2 Place markers to indicate location of disconnected services. .3 Identify service lines and capping locations on copy of site plan retained by Contractor. .4 See also requirements under Section 31 00 00, Article 1.06, Paragraph 2.</p><p>.1.5 SUBMITTALS</p><p>.A Submit proposed plan of action to Owner that addresses, but is not limited to, the following items: .1 Signed NPDES Permit and current SWPP Plan .2 Sequence of clearing activity .3 Necessary permits and notifications .4 Protective fencing installation .5 Traffic control installation</p><p>PART 2 PRODUCTS NOT USED</p><p>PART 3 EXECUTION</p><p>.3.1 EXAMINATION</p><p>.A Verification of Conditions: .1 Inspect existing conditions and become familiar with site clearing work. .2 Request clarification of questions concerning existing conditions before commencing site clearing.</p><p>.3.2 PROTECTION OF IN-PLACE CONDITIONS</p><p>.A Roadways and Pedestrian Walks Adjacent to Site: .1 Do not interfere with their use. .2 Maintain safe passage.</p><p>.B Movement of Utilities and Infrastructure Adjacent to Site: .1 Prevent movement, settlement, or collapse of adjacent utility services, walks, roadways, driveways and adjacent protected trees. .a Submit method of utility support system to Owner and Design Professional for approval. .b Assume liability for such movement, settlement, or collapse. .c Promptly repair damage at no cost to Owner.</p><p>.C Public, Workers and Adjacent Property: .1 Furnish, erect, and maintain barricades, fencing, and guardrails as required for protection. .2 Protect for duration of Project.</p><p>.D Existing Facilities, Utilities and Infrastructure to Remain: .1 For existing roadway, drives, utilities, and other features or facilities on or adjacent to the site that are to remain, protect from damage caused by work of this Section. .2 Clean adjacent roadway on demand. .3 Protect for duration of Project.</p><p>.E Existing Active Utilities on Site to Remain: .1 Locate and determine requirements for protection. .2 Protect for duration of Project.</p><p>.F Existing Trees and Landscaping: .1 Protect as shown on Drawings. .2 Protect trees using construction fence in compliance with details shown on Drawings.</p><p>SITE CLEARING DESIGN PROFESSIONAL NAME 31 12 00 - 2 DESIGN PROFESSIONAL PROJECT NUMBER IOWA STATE UNIVERSITY OWNER OFFICIAL CAPITAL PROJECT TITLE 2018 年 4 月 7 日 OWNER CAPITAL PROJECT (CP) NUMBER</p><p>.3 Protect trees and landscaping that remain from damage, even if not identified on Drawings.</p><p>.3.3 DEMOLITION</p><p>.A Work with pneumatic or vibratory tools where approved by Owner.</p><p>.B Do not use explosives.</p><p>.C Use barricades or other means to protect the public, workers, and adjacent properties from falling debris and operating equipment adjacent to structures.</p><p>.D Place warning signs and lights at night in locations as shown on Drawings and in areas where required to prevent injury.</p><p>.E Where storm sewer and sanitary sewer are abandoned and not otherwise specified, remove manholes, intakes and piping 18 inches in diameter or larger.</p><p>.F Where approved by Owner and not otherwise specified, pipes less than 18 inches in diameter may be capped, slurry filled and allowed to remain in place.</p><p>.G Where storm sewer is encountered during excavation, remove piping and associated underground portions of roof drain piping.</p><p>.H Coordinate abandonment of existing storm sewer with site grading and proposed storm sewer construction to ensure positive storm drainage in all phases of the Work.</p><p>.I Perform demolition of private utilities in compliance with applicable authorities having jurisdiction. .1 Allow private utilities access for salvage or relocation operations. .2 Remove or plug abandoned underground utilities encountered during excavation.</p><p>.J Repair demolition performed in excess of that required at no cost to Owner.</p><p>.K Except where otherwise noted, demolished materials become property of Contractor.</p><p>.L Do not stockpile demolished materials on site.</p><p>.M Do not burn materials on site.</p><p>.N Immediately remove demolished materials from site to an approved landfill.</p><p>.O Remove contaminated, vermin infested, or dangerous materials encountered on site and dispose of by safe means to prevent endangering health of workers and the public. .1 Before removal, report encountered dangerous or hazardous materials to Owner.</p><p>.P Remove tools and equipment upon completion of the Work.</p><p>.3.4 PAVED SURFACE REMOVAL</p><p>.A Saw cut surface material to full depth at designated removal lines.</p><p>.B Where paved areas are broken or damaged by Contractor beyond designated removal lines, remove material to new line designated by Owner and replace at no cost to Owner.</p><p>.C Where manholes, utility stop boxes, fire hydrants, utility vents, power poles and light poles that are required to remain in service and are located in walks or pavement, leave intact and remove sidewalk or pavement from around them. .1 Exercise extreme care and caution to prevent damage to utilities. .2 Repair damage to existing utilities at no cost to Owner.</p><p>.D Protect subgrade where paving removed.</p><p>DESIGN PROFESSIONAL NAME SITE CLEARING DESIGN PROFESSIONAL PROJECT NUMBER 31 12 00 - 3 OWNER OFFICIAL CAPITAL PROJECT TITLE IOWA STATE UNIVERSITY OWNER CAPITAL PROJECT (CP) NUMBER APRIL 7, 2018</p><p>.E Existing Asphaltic Concrete: .1 Remove and stockpile asphaltic materials. .2 Where used for pavement subbase, process by passing through a 1-1/2 inch flat sieve or 2 inch tilted vibrating screen. .3 Recycle as much as possible and dispose of remaining material by doing 1 or more of the following operations: .a Use as unsuitable soil in compliance with requirements under Section 31 20 00, Article 3.07. .b Remove excess to an approved landfill designated for this type of material or to a site designated by Owner. .c Incorporate in granular subbase material (special backfill) or subbase stabilization.</p><p>.3.5 TREE AND BRUSH REMOVAL</p><p>.A Except where designated in the Contract Documents or by Owner to be preserved, remove field fences, trees, brush, stumps, roots, downed timber, hedges, woody and other herbaceous vegetation, rubbish, et cetera, from the project area and from borrow areas furnished by Owner. .1 Cut, remove and dispose of trees defined as follows: .a Trees more than 6 inches in diameter, including stumps, roots, and downed timber. .2 Remove and dispose of brush defined as follows: .a Pull or grub trees 6 inches or less in diameter not classified as hedge, including stumps, roots, and downed timber. .b Pull or grub hedge (shrubs planted close together in rows). .c Remove vegetation and rubbish as required to clear site. .3 Remove tree and brush material to an approved landfill designated for this type of material or to a site designated by Owner.</p><p>.3.6 TREE PROTECTION</p><p>.A Erect and maintain temporary Type B fencing around tree protection zones before starting site clearing. .1 Do not store construction materials, debris, or excavated material within fenced area. .2 Do not permit vehicles, equipment, material storage or foot traffic within fenced area. .3 Maintain fenced area free of weeds and trash. .4 Remove fence upon final completion of construction.</p><p>.B Do not excavate within tree protection zones, unless approved by Owner.</p><p>.C Notify Owner before doing work within tree protection zones.</p><p>NOTE TO SPECIFIER: INCLUDE THE FOLLOWING PARAGRAPH IF VEHICLE TRAFFIC IS REQUIRED WITHIN TREE PROTECTION ZONES.</p><p>.D Where vehicle traffic for new construction is required within tree protection zones, place 12 inches of mulch in vehicle path under tree drip line and limit traffic to only necessary trips.</p><p>NOTE TO SPECIFIER: INCLUDE THE FOLLOWING PARAGRAPH IF EXCAVATION IS REQUIRED WITHIN TREE PROTECTION ZONES.</p><p>.E Where work for new construction is required within tree protection zones, hand clear and excavate to minimize damage to root systems. .1 Use narrow tine spading forks, comb soil to expose roots, and cleanly cut roots as close to excavation as possible. .2 Cover exposed roots with burlap and water regularly. .3 Temporarily support and protect roots from damage until they are permanently redirected and covered with soil. .4 Follow Owner direction for other materials and methods appropriate for the Project .5 Backfill with soil as soon as possible.</p><p>SITE CLEARING DESIGN PROFESSIONAL NAME 31 12 00 - 4 DESIGN PROFESSIONAL PROJECT NUMBER IOWA STATE UNIVERSITY OWNER OFFICIAL CAPITAL PROJECT TITLE 2018 年 4 月 7 日 OWNER CAPITAL PROJECT (CP) NUMBER</p><p>.F Where trees and vegetation to remain are damaged by construction operations, notify Owner immediately and do the following operations at no cost to Owner: .1 Repair damage to trees and shrubs as directed by Owner. .2 Arrange for replacement of trees that cannot be repaired and restored to full growth status as determined by Owner.</p><p>.3.7 SITE FENCING</p><p>.A Install site fencing in compliance with the following requirements: .1 Enclose site to prevent access by pedestrians and unauthorized personnel and vehicles. .a Clearly define access points and include means to limit access to the site and prevent inadvertent entry. .b Maintain fencing in a neat and orderly condition. .2 Where security of site installation is required, use fence type A (chain link) regardless of duration or level of hazard. .a Consider additional adjustments to the standard such as fence height, barbed wire top strands, et cetera, as appropriate to the security risk. .3 Support type A (chain link) fencing installed on paved areas with jersey barricades that will not require penetration of paved surfaces. .4 Support other fence types using weighted drums, post supports, or other method approved by Owner that will not require penetration of paved surfaces. .5 Install warning signs on fencing spaced not more that 50 feet apart with at least 1 on each side of the site that read “Danger – Construction Area – No Entry – Authorized Personnel Only”. .a Install only signs professionally made of sign materials that can withstand outdoor weather conditions for the duration of construction and can be easily read from a distance of 20 feet. .6 Where fencing is installed across existing walkways or roadways, use reflective or lighted visual barriers and appropriate “Sidewalk Closed” or “Road Closed” signs. .7 Install signs for closures of public streets and roadways that comply with the Manual on Uniform Traffic Control Devices (MUTCD) latest edition (See Section 31 00 00, Article 1.05, Paragraph A12.) .8 Where fencing is located adjacent to a roadway or walkway to remain in use, install fencing set back a minimum of 3 feet where possible to allow for snow removal operations. .9 Install fencing required for tree protection in compliance with details on Drawings.</p><p>.3.8 DISPOSAL</p><p>.A Recycle excess materials as much as possible.</p><p>.B Remove excess materials from site and deliver to an approved disposal area in compliance with applicable laws and ordinances and pay disposal fees where required.</p><p>.C Haul removed materials from site on covered or tarped trucks.</p><p>.3.9 REPAIR</p><p>.A Repair damage to adjacent paving and roadways caused by work of this Section at no cost to Owner.</p><p>.3.10 CLEANING</p><p>.A Keep roadways free of debris.</p><p>.B Clean roadways daily to remove mud, soil, and dust on streets near points of site access.</p><p>.C Clean site daily and restore surface as construction progresses.</p><p>END OF SECTION</p><p>DESIGN PROFESSIONAL NAME SITE CLEARING DESIGN PROFESSIONAL PROJECT NUMBER 31 12 00 - 5</p>