90 ALASKA 2020 SECTION 202 REMOVAL OF STRUCTURE S AND OBSTRUCTIONS
202-1.01 DESCRIPTION . Remove and dispose or salvage all buildings, fences, guardrail,
structures, old pavements, abandoned utilities and any other obstructions which are not designated or permitted to remain, except for the obstructions to be removed and disposed of under other items in the Contract. Backfill the resulting trenches, holes and pits. When the bid does not include pay items for removal of structures and obstructions as set out in this Section, perform such work under Section 203 or as specified. Remove and reset mailboxes and newspaper delivery tubes and the preserve from injury and defacement all vegetation and objects not scheduled t o be removed. Remove existing bridges as indicated on the Plans.
202-2.01 MATERIALS. Use materials that conform to the following:
Timber AASHTO M 168 (Hemlock, Douglas fir, Western Pine, or Sitka Spruce). Pressure treated per AASHTO M 133. Steel Pipe Stand ard Weight Steel Pipe, 2- inch (max.) diameter. Galvanized per AASHTO M 111. Steel Fasteners ASTM A307, Grade A. Galvanized per AASHTO M 232. Reflectors Yellow acrylic prismatic type meeting AASHTO M 290 or retroreflective sheeting meeting ASTM D4956, Type III, IV, or V. CONSTRUCTION REQUIREMENTS
202-3.01 GENERAL. Raze, remove, and dispose of, or salvage all buildings and foundations,
structures, fences, and other obstructions, any portions of which are within the right -of-way, except utilities and those for which other provisions have been made for removal. Fill basements, or cavities left by structure removal, to the level of the surrounding ground and, if within the prism of construction, compact backfill as specified under Section 203. Stockpile all mat erials which are designated for use on the project at approved locations. Burn or otherwise dispose of combustible debris as approved. Non- combustible debris or materials may be:
1.placed in embankments under the provisions of Subsection 203- 3.03 for placi ng rock in embankments (No metal pipes, wires, or cables may be placed in any embankment),
2.buried on the project, outside the embankment at approved locations, under a minimum covering of 2 feet of earth, or
3.disposed of outside the right -of-way limits, pr ovided that before disposing of such materials or debris on private or public lands, obtain from the owner of such land written permission for such disposal and a waiver of all claims against the State for any damage to such land which may result, together with all permits required by law for such disposal. Furnish a copy of such permission, waiver of claims, and permits to the Engineer before commencing work. Grade disposal areas to drain.
202-3.02 MAIL BOXES. Remove existing mail boxes and newspaper deliv ery tubes within the
project limits and temporarily reset them at approved locations. Install the boxes and tubes in such a position that their usefulness will not be impaired. After construction has been completed, install mail boxes and tubes to meet Al aska Standard Plans M -20 and M- 23. Repair or replace any posts, boxes, tubes or other material broken or damaged by the Contractor. 91 ALASKA 2020 202-3.03 REMOVAL OF BRIDGES, CULVERTS, A ND OTHER DRAINAGE ST RUCTURES. Do not remove bridges, culverts and other drainage st ructures in use by traffic until satisfactory arrangements have been made to accommodate traffic.
1.Culverts and Minor Structures . Do not remove manholes, inlets, valves or any other portion or portions of the sewer or water systems until the new systems are in operation or suitable arrangements have been made for the diversion, interruption, or a temporary system has been installed.
2.Bridges .
a.Submittals . Submit a Bridge Demolition Plan at least 60 days before beginning bridge removal. Include the following items in the Bridge Demolition Plan:
1.Proposed bridge removal date
2.Contact names and phone numbers for individuals responsible for the demolition
3.Schematic and detailed drawings identifying the method and sequence of removal
4.Schematic and detailed drawings identifying and detailing means of access to the bridge during demolition
5.Methods to prevent debris from entering the waterway
6.A list of the type, number and size of all proposed equipment to be used
7.Details of temporary support shoring and bracing, if required
8.Schematic drawings specifying crane locations and lifting locations
9.A listing of the size and weight of bridge subassemblies to be transported from the site
10.A schematic drawing identifying the proposed waste site location
11.Details of lead paint contai nment and disposal
b.Demolition . Remove and dispose of all bridge steel, concrete and timber bridge elements. Do not damage new construction during demolition operations. Maintain the integrity of undemolished portions of the bridge structure during demolit ion operations. Do not allow debris from bridge removal operations to enter a waterway. Unless noted otherwise in the Contract Documents, all existing bridge steel is coated with lead-based paint. Follow all applicable laws, permits, and Section 513 requir ements for containing, handling and disposing of lead- based paint waste and debris when dismantling, removing and handling steel from the existing bridge.
c.Disposal . Deliver all steel bridge components generated during demolition to a steel mill or ferrous foundry where the steel will be melted down to a raw material and recycled. Follow all applicable OSHA, EPA, DEC, Federal, State, Local and Section 513 requirements for containing, handling and disposing of lead- based paint waste and debris when handling, transporting, delivering and recycling structural steel from the existing bridge. Submit certification from the mill or foundry attesting that all of the existing structural steel has been recycled and that the lead byproduct has been recycled or disposed of in accordance with applicable regulatory requirements. In the certification, 92 ALASKA 2020 provide the weight of steel recycled and the mill or foundry’s EPA regulated waste activity identification number. Dispose of all non- salvageable and non- recyclable materials in a Contractor -furnished waste disposal site or in a manner approved by the Engineer.
d.Cleanup . In addition to the requirements of Subsection 104- 1.05, dress all bridge slopes or embankments according to the Plans. Dress slopes not designated in the Plans to conform to the natural ground surface or blend as directed. Fill all excavations and depressions.
202-3.04 REMOVAL OF PIPE. When the bid schedule contains an item for the “Removal of
Culvert Pipe”, the removed pipe becomes your property.
202-3.05 REMOV AL OF PAVEMENT, SIDEWALKS, AND CURBS. Dispose of all pavement,
base course, sidewalks, curbs, gutters, etc., designated for removal, in an acceptable manner. In removing pavements, curbs, walks, driveways and similar structures, make all cuts clean, vertical, and true to designated lines where an abutting structure or a part of a structure is to be left in place.
202-4.01 METHOD OF M EASUREMENT. See Section 109 and the following:
1.Square Yard. Length times average width before removal.
2.Linear Foot . Length before removal.
3.Each . Each complete unit removed or installed. Newspaper tubes will not be measured.
202-5.01 BASIS OF PA YMENT. Items 202.0001.____ and 22.0013.____. Payment includes
removing and disposing or relocating of all structures and obstructions enc ountered within the right-of-way under the provisions of this Section. Items 202.0002.____ through 202.0009.____. Payment includes salvage of materials removed, their custody, preservation, storage on the right -of-way and disposal as provided. Items 202.0010.____ through 202.0012.____. Payment includes final installation of mail boxes and newspaper tubes. Items 020.0014.____ through 202.0019.____. Payment includes removing and disposing of all pavement, sidewalk, curb and gutter and culvert pipe designated for removal. Items 202.0020.___ through 202.0022.____ Payment includes removal and temporary relocation, of mail boxes and newspaper tubes. Item 202.0023.____. Payment includes removal, handling, transportation, and disposal of the existing bridge in its entirety. Removal of bridge rail, pavement, utilities, and other objects mounted to the bridge is subsidiary. Excavation, backfill, and compaction is subsidiary. Payment will be made under: PAY ITEM Item Number Item Description Unit 202.0001.____ Remo val of Structures and Obstructions LS 202.0002.____ Removal of Pavement SY 202.0003.____ Removal of Sidewalk SY 93 ALASKA 2020 PAY ITEM Item Number Item Description Unit 202.0004.____ Removal of Culvert Pipe LF 202.0005.____ Removal of Sanitary Sewer Pipe LF 202.0006.____ Removal of Manhole EACH 202.0007.__ __ Removal of Junction Box EACH 202.0008.____ Removal of Inlet EACH 202.0009.____ Removal of Curb and Gutter LF 202.0010.____ Single Mail Box Installation EACH 202.0011.____ Multiple Mail Box Installation EACH 202.0012.____ Double Mail Box Installatio n EACH 202.0013.____ Removal of Structures and Obstructions CS 202.0014.____ Removal of Pavement LS 202.0015.____ Removal of Sidewalk LS 202.0016.____ Removal of Pavement STA 202.0017.____ Removal of Culvert Pipe EACH 202.0018.____ Removal of Culvert Pipe LS 202.0019.____ Removal of Curb and Gutter LS 202.0020.____ Removal of Single Mail Box EACH 202.0021.____ Removal of Multiple Mail Box EACH 202.0022.____ Removal of Double Mail Box EACH 202.0023.____ Removal of Bridge LS 94 ALASKA 2020 SECTION 203 EXCAVAT ION AND EMBANKMENT
203-1.01 DESCRIPTION. Excavate, haul, place, and compact or dispose of specified materials
necessary to construct the project. Conform to the lines, grades, depths and typical cross sections shown on the Plans or as established. The Contract will designate material to be removed within the excavation limits as classified or unclassified excavation.
203-2.01 Materials.
1.Unclassified Excavation. All materials of whatever character encountered in the work. May include rock, common, or muck.
2.Classified Excavation.
a.Common Excavation. Silt, sand, gravel, and granular material other than rock or muck.
b.Rock Excavation. Rock that cannot be excavated without blasting or ripping.
c.Muck Excavation. Soils, organic matter, and other material not suit able for foundation material regardless of moisture content.
3.Borrow . Approved material required for embankments or for other portions of the work, and obtained from sources outside the right -of-way limits for the project.
4.Rock Stabilization Materials . As specified on the Plans or Special Provisions.
5.Rockfall Mitigation Materials . As specified on the Plans or Special Provisions.
6.Crushed Glass: May be combined with soil -aggregate material to be used in embankment construction. Meet 703- 2.15 requirements. CONSTRUCTION REQUIREMENTS
203-3.01 GENERAL. Perform all necessary clearing and grubbing prior to beginning excavation,
grading, and embankment operations in any area. Keep excavation and embankment areas free draining at all times as the work progresses. Finish the excavation and embankments to reasonably smooth and uniform surfaces. Excavate and embank material only within the limits on the Plans or as directed. Prevent disturbing material and vegetation outside of the slope limits. The Engineer may designate excavated soils, that cannot be properly compacted in embankments, as unsuitable. When unsuitable material is encountered at the required depth of excavation, remove the unsuitable material to the depth specified or directed. Allow for measurements to be taken before backfill is placed. Dispose of unsuitable material or excess usable material at approved locations. Obtain the property owner’s written permission to dispose of unsuitable material or excess usable material at locations outside the right -of-way limits and a waiver of all claims against the State for any damage to such land which may result. Obtain all permits required by law for such disposal. Furnish a copy of such permission, waiver of claims, and permits to the Engineer before commencing work.
Source: Alaska Standard Specifications for Highway Construction, 2020 Edition. Pages 118–121 of 584.