STANDARD SPECIFICATIONS FOR HIGHWAY …

1 STANDARD SPECIFICATIONS FOR HIGHWAY construction Prepared by: Professional Services Section Alberta Transportation Edmonton, Alberta Copyright December, 2010 Her Majesty the Queen in right of Alberta, as represented by the Minister of Transportation This Book, or parts thereof, may not be reproduced in any form without the written permission of Executive Director, Technical standards Branch Alberta Transportation SUMMARY OF SPECIFICATIONS1 DECEMBER 2010 SPEC. 2 - Grade Electrical Pipe of Base Course and Pavement , Inlets and Catch Bin Retaining of Miscellaneous and/or Corrugated Steel Storm and Guide Culvert Extensions and Culvert Wall Steel Pipe Culvert Extensions and Culvert Street SignalsSection 3 - Production and Stabilized Base Base Stabilized Base Surface Milling Asphalt Bridge , Tack & Fog Seal Coat Aggregate Seal Coat Seal OF SPECIFICATIONSSPEC.

2 Pavement Crack Routing and Pavement Crack Repair - Spray Repair - Mill and of Concrete Pavement (EPS) Rumble Concrete Pavement - ImprovementSection 4 - Curb, Medians, Traffic Islands and Curbs, Gutters, Sidewalks, Medians and Traffic 5 - of of Portland Cement of Asphalt of Portland of Fence of Reinforced Concrete of Polyvinyl Chloride of Permanent HIGHWAY Signs, Posts and of Line Painting of Livestock and Install Smooth Wall Steel of Corrugated Metal Pipe and Pipe Arches of Polyethylene of Thrie Beam and W-Beam Box Beam Guardrail and of Cable Barrier and Metal Flexible Guide Post Traffic of of Metal Bin Retaining OF SPECIFICATIONSSPEC. 2010 Section 6 - Environmental Protection and Gabion MattressesSection 7 - Signing and Pavement Accommodation and Temporary Roadway HIGHWAY Signing Section 2 specification Clearing DECEMBER 2010 TABLE OF CONTENTS CLEARING.

3 1 GENERAL .. 1 Description .. 1 Clearing in Forest Protection Areas .. 1 1 General .. 1 Clearing and Timber Salvage .. 1 Preservation of 1 Hazardous 1 DISPOSAL OF CLEARING DEBRIS .. 2 Disposal of Clearing Debris by Burning .. 2 Disposal of Clearing Debris by Mulching .. 2 MEASUREMENT AND PAYMENT .. 3 Section 2 specification Clearing DECEMBER 2010 CLEARING GENERAL Description Clearing shall consist of cutting, piling, removing and disposing of trees, brush, stumps, logs and roots from areas shown on the Drawings or as designated by the Consultant. Clearing in Forest Protection Areas Clearing in Forest Protection Areas shall be carried out in accordance with the regulations and requirements of the Alberta Forest and Prairie Protection Act. CLEARING General The Contractor shall cut trees and brush within the areas designated for clearing work; and dispose of the resulting debris.

4 Debris from the Contractor s clearing operations shall not be deposited on adjacent lands. Burying of material will not be permitted. Branches from standing trees extending into the right-of-way which hang within m of the ground shall be cut-off close to the trunk in a neat and workmanlike manner. Underbrush and downed trees protruding into the right-of-way shall be removed and disposed of. At the completion of clearing operations, the limits of the right-of-way shall be left in a condition suitable for fencing. Clearing and Timber Salvage Areas requiring timber salvage will be identified by the Consultant. Generally, timber salvage will be required where trees have a stump diameter of 125 mm or greater. The Contractor shall fell, top, limb and deck salvageable timber to the satisfaction of the Consultant.

5 The salvaged timber shall be neatly piled in areas designated by the Consultant. Preservation of Trees The Consultant may require the Contractor to preserve certain trees within the right-of-way. Underbrush, downed timber, snags and roots shall be removed from the vicinity of trees designated for preservation and the materials disposed of. Hazardous Trees Trees located outside areas to be cleared which, in the opinion of the Consultant, may present a hazard shall be removed and disposed of. Section 2 specification Clearing DECEMBER 2010 2 DISPOSAL OF CLEARING DEBRIS Disposal of Clearing Debris by Burning General Generally, debris resulting from the Contractor s clearing operations shall be disposed of by burning. Unless otherwise approved by the Consultant, burning of clearing debris shall take place within the right-of-way.

6 The Contractor shall obtain authorization from the applicable local authorities prior to burning of clearing debris within Municipal Districts and Counties. The Contractor is advised that during periods of extreme fire hazard in Forest Protection Areas, fire permits may be refused. In the event the Contractor is unable to burn the debris, through no fault of his own, the Consultant may direct the Contractor to mulch the clearing debris and dispose of it on-site or remove the debris from the right-of-way to his own disposal site. Fire Control The Contractor shall be solely responsible for ensuring all fires are carefully controlled and are fully extinguished at the completion of clearing operations. The Contractor may be held responsible for damages resulting from improperly extinguished fires. Disposal of Clearing Debris by Mulching General When specified in the Special Provisions or when directed by the Consultant, the Contractor shall dispose of clearing debris by mulching and spreading the resulting material over the cleared area or other area designated by the Consultant.

7 Mulching Mulching shall consist of the breaking down of all non-salvageable timber or snags, brush, shrubs, slash, waste wood and wood debris left after clearing and/or clearing and timber salvage operations have been completed. Acceptable mulching methods include flailing, rotary cutting and grinding, pulverizing, or chipping. Alternative methods may be used subject to approval by the Consultant. Mulching shall be in accordance with the following requirements: - All mulched materials shall lay flat to the soil. In cases of convoluted or mixed materials, the height protruding above the soil level shall not exceed m and shall not exceed a single stem protrusion. - No single piece of mulched material shall be longer than m and shall not exceed m in diameter. Exceptions to this requirement may be considered by the Consultant for large diameter woody materials which, upon mechanical manipulation, show evidence of debarking but resist break-up into a size of less than m in diameter.

8 Section 2 specification Clearing DECEMBER 2010 3- Woody material mulched in-place shall have no residual height requirement. Material mulched and stockpiled and then spread over the cleared areas at a later time shall have a maximum residual height of m. - The Contractor shall undertake fringe clean-up operations to remove displaced materials in adjacent timber; including tangled or hung-up material, leaning or broken material, or any material displaced by the mulching process. This also includes any material damaged by the mulching process within proximity to the cleared area deemed by the Consultant to be a safety hazard. - Roadways and adjacent lands shall be inspected for a minimum of m from the edge of the property or border of the area cleared. Materials deposited on adjacent lands by the Contractor s clearing or mulching operations shall be returned to the right-of-way.

9 - All stumps shall be reduced to ground level using methods acceptable to the Consultant. - Mulching operations shall not incorporate or mix mulched materials into the subsoil. In cases where topsoil is limited, surface mulching operations shall not be allowed to mix topsoil and subsoil horizons. MEASUREMENT AND PAYMENT Clearing; clearing and mulching; clearing and timber salvage; and clearing, timber salvage and mulching will be measured in hectares based on horizontal measurements. No allowance will be made for uneven or sloping ground. Payment for this work will be made at the unit prices bid for "Clearing", Clearing and Mulching , Clearing and Timber Salvage and/or Clearing, Timber Salvage and Mulching , as applicable, and will be full compensation for all clearing and/or clearing and timber salvage operations; disposal of debris by burning, mulching or other methods specified by the Consultant; and all labour, equipment, tools and incidentals necessary to complete the Work to the satisfaction of the Consultant.

10 Cutting and removing grain, grass, weeds, brush and shrubs from within areas to be cleared will be considered incidental to the Work, and no separate or additional payment will be made. If, through no fault of his own, the Contractor is unable to obtain a burning permit and the Consultant directs the Contractor to mulch and spread the clearing debris on-site or dispose of these materials off-site, payment for this Work will be made in accordance with Section , Extra Work, of specification , General. However, if, in the opinion of the Consultant, the Contractor did not make use of opportunities to burn debris when available, these costs will be considered incidental to the Work and no separate or additional payment will be made. Clearing of areas required for Contractor access to the Work and for Contractor campsites shall be carried out by the Contractor at his expense.