PROJECT MANUAL. Track Reconstruction Package 1

Transcription

1 PROJECT MANUAL FOR THE Track Reconstruction Package 1 Volume 2: Technical Specifications PREPARED FOR: PREPARED BY: FDOT FM No.: BID No.: BID DOCUMENTS OCTOBER 2018

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3 TABLE OF CONTENTS TABLE OF CONTENTS The following section contains technical specifications to be utilized on this project. These technical specifications are based on the Florida Department of Transportation (FDOT) Standard Specifications for Road and Bridge Construction (latest edition), CSX Standard Specifications for the Design and Construction of Private Sidetracks, Federal Aviation Administration (FAA) Standard Specifications for Specifying Construction of Airports as found in FAA Advisory Circular 150/ G, and specifications developed specifically for this project. Modifications to standard specifications have been made as applicable for this Project in the following two forms: Strikeouts: Italics: Language shown in this manner is to be ignored and is not applicable to the work. Language shown in this manner is additional language, which is relevant to, and is part of the contract documents for this specific project. The following terms as they appear in the Technical Specifications shall be defined as follows: Owner: Sebring Multimodal Logistics Center Design Engineer: Atkins North America Engineer: Owner s Authorized Representative Department: Florida Department of Transportation Utility Owner: Respective owner of each utility as indicated on the construction drawings. FAA Specifications (non-standard specifications are marked with * ) Item M-110 Item P-120 Item P-125 Item P-151 Item P-152 Item P-156 Item P-610 Item D-701 Item D-705 Item D-751 Item D-752 Item F-162 Item T-904 Item T-905 Mobilization* Demolition* Pavement Removal and Milling* Clearing and Grubbing Excavation, Subgrade, and Embankment Temporary Air and Water Pollution, Soil Erosion, and Siltation Control Structural Portland Cement Concrete Pipe for Storm Drains and Culverts Pipe Underdrains for Airports Manholes, Catch Basins, Inlets and Inspection Holes Concrete Culverts, Headwalls, and Misc. Drainage Structures Chain-Link Fence Sodding Topsoiling FDOT Specifications Section 160 Section 285 Stabilizing Optional Base Course VOLUME 2 BID DOCUMENTS TOC-i

4 TABLE OF CONTENTS Section 300 Section 320 Section 330 Section 334 Section 700 Section 706 Section 710 Prime and Tack Coats Hot Mix Asphalt Plant Methods and Equipment Hot Mix Asphalt General Construction Requirements Superpave Asphalt Concrete Highway Signing Raised Retro-Reflective Pavement Markers and Bituminous Adhesive Painted Pavement Markings CSX Specifications Ballasted Track Construction Grade Crossings Shop Track Construction END OF TABLE OF CONTENTS VOLUME 2 BID DOCUMENTS TOC-ii

5 ITEM M-110 MOBILIZATION ITEM M-110 MOBILIZATION DESCRIPTION The work specified in this section consists of the preparatory work and operations in mobilizing for beginning work on the project, including but not limited to those operations necessary for the movement of personnel, equipment, supplies and incidentals to the project site and for the establishment of temporary offices, buildings, safety equipment and first aid supplies, sanitary and other facilities as required by these Specifications, the General Conditions, Supplementary Conditions, the Plans and State and Local laws and regulations. The work will include but not be limited to safety, security and traffic control requirements as defined in the Construction Drawings. The costs of bonds and any required insurance and any other pre-construction expense necessary for the start of the work, excluding the cost of construction materials, shall also be included in this section Contractor shall be responsible for furnishing, installing and managing all necessary landside maintenance of traffic (MOT) operations as shown on the plans, outlined in the Special Provisions, and any other MOT that is required for this project. Contractor shall supply all equipment required for proper public safety and MOT for both airside and landside activities. MOT shall be conducted in accordance with all Florida Department of Transportation (FDOT) MOT requirements. METHOD OF MEASUREMENT Mobilization will be paid for on a lump sum basis; hence, no separate measurement will be made Safety, Security and Traffic Control Requirements will be paid for on a lump sum basis; hence, no separate measurement will be made. BASIS OF PAYMENT All work covered under Mobilization shall be paid for at the contract lump sum price for mobilization. Partial payments will be made for Mobilization in accordance with the following: % of Orig. Allowable % Contract Amount of Lump Sum Earned Price of Item* *Calculation of partial payments for the lump sum bid item for mobilization will be limited to 7% of the original contract amount. Any amount in excess of 7% will be paid upon completion of all work on the project. VOLUME 2 BID DOCUMENTS M NON-FAA SPEC ITEM

6 ITEM M-110 MOBILIZATION The standard retainage will be applied to these allowances. Partial payments made on this item shall in no way act to preclude or limit any of the provisions for partial payments otherwise provided for by the contract. No additional payment will be made for demobilization and remobilization due to shutdowns, suspensions of the work or for other mobilization activities. All work covered under Safety, Security and Traffic Control Requirements shall be paid for at the contract lump sum price for Safety, Security and Traffic Control Requirements. Partial payments will be made for Safety, Security and Traffic Control pay item in accordance with the Mobilization partial payments table presented above. Payment will be made under: Item M Item M Mobilization - per Lump Sum Safety, Security and Traffic Control - per Lump Sum END OF ITEM M-110 VOLUME 2 BID DOCUMENTS M NON-FAA SPEC ITEM

7 ITEM P-120 DEMOLITION ITEM P-120 DEMOLITION DESCRIPTION This item shall consist of the demolishing and removal of structures, foundations, building slabs, footings, storm drainage pipe and structures, utilities, and all other miscellaneous items as indicated on the Plans and in the manner indicated by the instructions supplied on the drawings and in these Specifications or as directed by the Engineer. All structures to be removed shall be removed to their full depth. This item includes all associated tasks required to dispose of the facilities intended for demolition, protect existing facilities which are to remain, and regrading in areas disturbed by the demolition activities. CONSTRUCTION METHODS General. Remove and dispose of the materials from the following: (1) those structures, or portions of structures, shown in the Plans to be removed; (2) those structures, or portions of structures, found within the limits of the area to be cleared and grubbed, and directed by the Engineer to be removed; (3) those structures, or portion of structures, which are necessary to be removed in order to construct new structures; and (4) other appurtenances or obstructions which may be designated in the Contract Documents Permits and Licenses. Obtain all necessary permits and licenses for performing the work and furnish a copy of same to the Engineer prior to commencing the work. Comply with the requirements of the permits. Perform demolition and removal in compliance with applicable laws and ordinances and in such a manner as to avoid hazard to persons and property and to prevent spread of dust and flying particles Utility Services. Provide written notices to utility companies or local authorities furnishing gas, water, electrical, telephone or sewer service to remove any equipment owned by utility or authority in structures to be demolished and to remove, disconnect, cap or plug their services to facilitate demolition. Submit copies of said notices to the Owner s Authorized Representative (O.A.R.). The Contractor shall not demolish or remove any existing work that would result in an interruption of any utility service until that service is relocated either by the Contractor or by others as noted on the Plans or directed by the Engineer Safety. Provide and maintain temporary safety barriers and other safety and security devices as necessary to protect the public and project personnel from injury due to demolition work. Protect from damage all existing work, equipment and improvements that are to remain and restore all damage caused by the demolition work to the satisfaction of the O.A.R Salvage. Remove equipment, devices and materials to be salvaged with the minimum amount of damage and store on the site as directed by the Owner. Documentation of the existing condition of all salvaged items shall be provided to the O.A.R. prior to any salvage efforts by the Contractor. Store salvaged equipment and materials which can be damaged by the weather in a weather tight building or area on site. Remove from the site any salvaged items that are determined to be of no value to the Owner after removal and Owner's inspection. Airport reserves the first right of refusal on any items that are removed from their existing VOLUME 2 BID DOCUMENTS P NON-FAA SPEC ITEM

8 ITEM P-120 DEMOLITION locations during demolition. Any items not kept by the Owner will become the property of the Contractor and will need to be removed from the site at the Contractor s expense Backfill. All excavations caused by pavement, drainage, structural, and foundation removal shall be backfilled with embankment or other suitable material to smooth finished grade or, in areas designated for new construction, finished subgrade elevation. Placement, compaction and grading of this material shall be considered a subsidiary obligation to demolition of the respective item. Backfill shall be performed in accordance with the requirements of P Cleanup. Remove on a daily basis all debris created within facilities which are to remain in service during the modification work, and broom clean the floor at the end of each day's operation. After demolition, clean site to a condition satisfactory to the Engineer, free from demolished materials, rubbish or debris. Grade site to meet adjacent contours and provide flow for surface drainage. Sod or seed site once graded in accordance with project requirements. Return all interrupted utility services to their pre-demolition states and disconnect temporary services, unless otherwise specified. Repair or restore any damage done to existing facilities, which are to remain to the satisfaction of the Owner. METHOD OF MEASUREMENT The length of pipe to be removed shall be measured in linear feet of pipe removed and approved. It shall be measured along the centerline of the pipe from end or inside face of structure to the end or inside face of structure, whichever is applicable. The several classes, types and size shall be measured separately. All fittings shall be included as incidental in the footage as typical pipe sections in the pipe being measured Miscellaneous structures to be removed shall be measured by each unit removed Removal of rail and ties shall be measured in linear feet of rail. Removal of concrete road crossings within the limits shown shall be incidental to rail and tie. BASIS OF PAYMENT Payment will be made at the contract unit price per linear foot for each kind of pipe of the type and size designated for removal, and at the contract unit price per unit for each structure removal. These prices shall fully compensate the Contractor for furnishing all materials and for all preparation, excavation, and removal of these materials; and for all labor, equipment, tools, and incidentals necessary to complete the item Payment will be made at the contract unit price per linear foot for removal of rail, timber ties, and concrete road crossings. These prices shall fully compensate the Contractor for furnishing all materials and for all preparation, excavation, and removal of these materials; and for all labor, equipment, tools, and incidentals necessary to complete the item. VOLUME 2 BID DOCUMENTS P NON-FAA SPEC ITEM

9 ITEM P-120 DEMOLITION Payment will be made under: Item P Item P Item P Remove 60-inch CMP per Linear Foot Remove 8-inch Sanitary Sewer per Linear Foot Rail and Tie Removal per Linear Foot END OF ITEM P-120 VOLUME 2 BID DOCUMENTS P NON-FAA SPEC ITEM

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11 ITEM P-125 PAVEMENT REMOVAL AND MILLING ITEM P-125 PAVEMENT REMOVAL AND MILLING DESCRIPTION This section consists of the breaking up and removal of pavements of all types including base courses, as well as milling asphalt in areas indicated on the plans or as directed by the Engineer The Contractor shall accomplish the demolition and disposal in accordance with all local, state, and federal regulations and laws in regard to hazardous or toxic materials and shall obtain any permits required to accomplish the work Perform the work covered by this section including but not limited to milling and remilling the pavement at locations, depths, widths, and typical sections indicated in the contract documents, cleaning the milled surface, loading, hauling, stockpiling the milled material for use in recycled asphalt mixtures, and disposal of any excess milled material Milled material becomes the property of the Contractor to be disposed of off Airport property or for use in recycled pavements if allowable. CONSTRUCTION METHODS Asphaltic pavement to be removed shall be sawcut to the full depth of the bituminous material around the perimeter of the area to be removed. The pavement shall be removed in such a manner that the joint for each layer of pavement replacement is offset from the joint in the preceding layer as directed by the plans Existing pavement called for saw cutting in the plans shall be saw cut along neat lines, and to the depth indicated on the plans and typical sections. A power saw approved by the Engineer shall be used for cutting pavement. After the existing pavement has been saw cut through, the Contractor may use pry bars, pneumatic tools or other methods approved by the Engineer, to pry loose the existing pavement from that pavement which is to remain. A pavement breaker, under the supervision of the Engineer, may be used to break up the pavement to be removed after the pavement has been completely saw cut through and completely free from the pavement to remain. Care shall be taken not to disturb or damage saw cuts of existing pavement and curbs to remain. Any existing pavements and curbs not indicated to be removed that are damaged by the Contractor's operations, shall be repaired to the satisfaction of the Engineer For milling, use a self-propelled unit capable of removing the existing asphalt pavement to the depths, widths, and typical sections shown in the contract. Use milling machines designed and built exclusively for pavement milling operations and with sufficient power, traction, and stability to accurately maintain depth of cut and slope. Provide a milling machine capable of maintaining a depth of cut and cross slope that will achieve the results specified in the Contract Documents If it becomes evident after starting milling that the milling machine cannot consistently produce the specified results, the Engineer will reject the milling machine for further use Use milling machines equipped with an electronic grade control system that will VOLUME 2 BID DOCUMENTS P NON-FAA SPEC ITEM

12 ITEM P-125 PAVEMENT REMOVAL AND MILLING automatically control the longitudinal profile and cross slope of the milled pavement surface through the use of a mobile grade reference(s), an erected string line(s), joint matching shoe(s), slope control systems, or other methods or combination of approved methods. Use an erected fixed string line when required by the contract; otherwise, use a mobile grade reference system capable of averaging the existing grade or pavement profile over a minimum 30 foot distance or by non-contacting laser or sonar type ski systems with at least four referencing stations mounted on the milling machine at a minimum length of 24 feet Coordinate the position of the grade control system such that the grade sensor is at the approximate midpoint of the mobile reference system. Use a machine capable of leaving a uniform surface suitable for handling traffic without excessive damage to the underlying pavement structure. Use a milling machine and other loading equipment capable of loading milled material to be used in other parts of the work without excessive segregation If present, remove any existing raised reflective pavement markers prior to milling Provide additional equipment necessary to satisfactorily remove the pavement in the area of manholes, water valves, curb and gutter, and other obstructions Equip the milling equipment with a means of effectively limiting the amount of dust escaping from the removal operation in accordance with local, State, and Federal air pollution control laws and regulations Mill the existing pavement in a manner that will restore the pavement surface to a uniform longitudinal profile and cross section in accordance with typical sections shown in the plans. Where indicated in the contract, remove pavement to a specified depth and produce a specified cross slope. Mill intersections and other irregular areas as indicated in the contract The Contractor may elect to make multiple cuts to achieve the required depth of cut or cross slope required by the plans Establish the longitudinal profile of the milled surface by a mobile string line on the side of the cut nearest the centerline of the road. Establish the cross slope of the milled surface by an automatic cross slope control mechanism or by a second skid sensing device located on the opposite edge of the cut. The Engineer may waive the requirement for automatic grade and cross slope controls where conditions warrant Operate the milling equipment in such a manner as to prevent damage to the underlying pavement structure, utilities, drainage facilities, curb and gutter, paved surfaces outside the milled area, and any other appurtenances. Produce milled pavement surfaces that are reasonably smooth and free of excessive scarification marks, gouges, ridges, continuous grooves, or other damage. Repair any leveling or patching required as a result of negligence by the Contractor with hot asphalt plant mix at no cost to the Owner and in a manner acceptable to the Engineer. Coordinate the adjustment of manholes, meter boxes, and valve boxes with the milling operation Thoroughly clean the milled pavement surface of all loose aggregate particles, dust, and other objectionable material. Disposing or wasting of oversize pieces of pavement or loose aggregate material will not be permitted within the right of way Conduct pavement removal operations in a manner that effectively minimizes the VOLUME 2 BID DOCUMENTS P NON-FAA SPEC ITEM

13 ITEM P-125 PAVEMENT REMOVAL AND MILLING amount of dust being emitted. The Engineer may require pre-wetting of the pavement. Plan and conduct the operation so it is safe for persons and property adjacent to the work including the traveling public Pavement removal shall consist of breaking up and removal of bituminous pavements and base courses as indicated on the plans. The horizontal limits of these removals shall be surveyed and saw cut prior to removal, unless otherwise agreed to by the Engineer The Contractor shall protect and maintain existing utilities/facilities to remain. Any existing utilities/facilities not indicated to be removed that are damaged by the Contractor's operations, shall be repaired to the satisfaction of the Engineer. METHOD OF MEASUREMENT Pavement removal will be measured by the actual number of square yards of pavement surface that has been removed in accordance with the requirements of this Section. In measuring this quantity, the length and width will be the actual dimensions measured. BASIS OF PAYMENT Payment shall be made at the contract unit price for full depth asphalt removal or sidewalk removal as outlined in the plans. This price shall be full compensation for removing and disposal of pavement section and all labor, equipment and incidentals necessary to complete the item. Any additional grading, compaction or other base course preparation that may be required in addition to milling or removal operations to prepare the existing base course to the correct grade shall be considered incidental. Payment will be made under: Item P Item P Full Depth Asphalt Removal per Square Yard Sidewalk Removal per Square Yard END OF ITEM P-125 VOLUME 2 BID DOCUMENTS P NON-FAA SPEC ITEM

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15 ITEM P-151 CLEARING AND GRUBBING ITEM P-151 CLEARING AND GRUBBING DESCRIPTION This item shall consist of clearing or clearing and grubbing, including the disposal of materials, for all areas within the limits designated on the plans or as required by the Engineer. a. Clearing shall consist of the cutting and removal of all trees, stumps, brush, logs, hedges, the removal of fences and other loose or projecting material from the designated areas. The grubbing of stumps and roots will not be required. b. Clearing and grubbing shall consist of clearing the surface of the ground of the designated areas of all trees, stumps, down timber, logs, snags, brush, undergrowth, hedges, heavy growth of grass or weeds, fences, structures, debris, and rubbish of any nature, natural obstructions or such material which in the opinion of the Engineer is unsuitable for the foundation of strips, pavements, or other required structures, including the grubbing of stumps, roots, matted roots, foundations, and the disposal from the project of all spoil materials resulting from clearing and grubbing. c. Stripping shall consist of the removal of existing turf where trees and brush are not present. CONSTRUCTION METHODS General. The areas denoted on the plans to be cleared or cleared and grubbed shall be staked on the ground by the Contractor for review by the Engineer. The clearing and grubbing shall be done at a satisfactory distance in advance of the grading operations. Perform stripping, clearing, or clearing and grubbing as most appropriate within the following areas: (a) All areas where excavation is to be done, including borrow pits, lateral ditches, right-ofway ditches, etc. (b) All areas where roadway or parking embankments will be constructed. (c) All areas where airfield pavements will be constructed. (d) All areas where building construction will occur. (e) All areas where structures will be constructed, including pipe culverts (f) Other areas as designated in the plans or required by the Engineer. All spoil materials removed by clearing or by clearing and grubbing shall be disposed of outside the Airport s limits at the Contractor s responsibility, except when otherwise directed by the Engineer. As far as practicable, waste concrete and masonry shall be placed on slopes of embankments or channels. When embankments are constructed of such material, this material shall be placed in accordance with requirements for formation of embankments. Any broken concrete or masonry that cannot be used in construction and all other materials not considered suitable for use elsewhere, shall be disposed of by the Contractor. In no case shall any discarded materials be left in windrows or piles adjacent to or within the airport limits. The manner and location of disposal of materials shall be subject to the approval of the Engineer and shall not create an unsightly or objectionable view. When the Contractor is required to locate a disposal area outside the airport property limits, the Contractor shall obtain and file with VOLUME 2 BID DOCUMENTS P FAA AC 150/ G

16 ITEM P-151 CLEARING AND GRUBBING the Engineer permission in writing from the property owner for the use of private property for this purpose. Blasting shall not be allowed. The removal of existing structure and utilities required to permit orderly progress of work shall be accomplished by local agencies, unless otherwise shown on the plans. Whenever a telephone or telegraph pole, pipeline, conduit, sewer, roadway, or other utility is encountered and must be removed or relocated, the Contractor shall advise the Engineer who will notify the proper local authority or owner to secure prompt action Clearing. The Contractor shall clear the staked or indicated area of all objectionable materials. Trees unavoidably falling outside the specified clearing limits must be cut up, removed, and disposed of in a satisfactory manner. To minimize damage to trees that are to be left standing, trees shall be felled toward the center of the area being cleared. The Contractor shall preserve and protect from injury all trees not to be removed. The trees, stumps, and brush shall be cut flush with the original ground surface. The grubbing of stumps and roots will not be required. Fences and gates shall be removed and disposed of as directed by the Engineer. Fence wire shall be neatly rolled and the wire and posts stored on the airport if they are to be used again, or stored at a location designated by the Engineer if the fence is to remain the property of a local owner or authority Clearing and Grubbing. In areas designated to be cleared and grubbed, all stumps, roots, buried logs, brush, grass, and other unsatisfactory materials shall be removed, except where embankments exceeding 3-1/2 feet (105 cm) in depth will be constructed outside of paved areas. For embankments constructed outside of paved or building areas, all unsatisfactory materials shall be removed, but sound trees, stumps, and brush can be cut off flush with the original ground and allowed to remain. Tap roots and other projections over 1-1/2 inches (38 mm) in diameter shall be grubbed out to a depth of at least 18 inches (0.5 m) below the finished subgrade or slope elevation. Any buildings and miscellaneous structures that are shown on the plans to be removed shall be demolished or removed, and all materials shall be disposed of by removal from the site. The cost of removal is incidental to this item. The remaining or existing foundations, wells, cesspools, and like structures shall be destroyed by breaking down the materials of which the foundations, wells, cesspools, etc., are built to a depth at least 2 feet (60 cm) below the existing surrounding ground. Any broken concrete, blocks, or other objectionable material that cannot be used in backfill shall be removed and disposed of at the Contractor s expense. The holes or openings shall be backfilled with acceptable material and properly compacted. All holes under embankment areas remaining after the grubbing operation shall have the sides of the holes flattened to facilitate filling with acceptable material and compacting as required in Item P-152. The same procedure shall be applied to all holes remaining after grubbing in areas where the depth of holes exceeds the depth of the proposed excavation Stripping. Stripping shall be conducted in the locations shown on the plans where maintained turf exists. Stripping shall consist of blading the area indicated on the plans to a depth as required to remove all organic material present. In order to minimize embankment required do not remove more material than as required to remove organics. Strippings shall be VOLUME 2 BID DOCUMENTS P FAA AC 150/ G

17 ITEM P-151 CLEARING AND GRUBBING stockpiled separately from suitable excavation and used as topsoil beneath new sod. Strippings used as topsoil shall be spread to a depth of 4-inches. All excess strippings shall be legally disposed of off-site Trees to Remain. As an exception to the above provisions, where required by the plans or so directed by the Engineer, trim, protect, and leave standing desirable trees within the project area. Trim branches of trees extending over the area occupied by the roadway or parking lot as directed, to give a clear height of 16 feet above pavement Protection of Property Remaining in Place. Protect and do not displace property obstructions which are to remain in place, such as buildings, sewers, drains, water or gas pipes, conduits, poles, walls, posts, bridges, etc Demolition of Pavements and Structures. Pavements and structures called for removal on the plans or as found in the project area shall be demolished in accordance with specifications P-120 and P-125. Should the Contractor encounter an existing structure (above or below ground) in the work for which the disposition is not indicated on the plans, the Engineer shall be notified prior to disturbing such structure. The disposition of existing structures so encountered shall be immediately determined by the Engineer in accordance with the provisions of the contract. The Contractor shall not excavate, remove, or otherwise disturb any material, structure, or part of a structure which is located outside the lines, grades, or grading sections established for the work, except where such excavation or removal is provided for in the contract, plans, or specifications Hazardous Materials. If hazardous materials are encountered during clearing, Contractor shall cease operations immediately in the area and notify the Engineer. Handle, transport and dispose of hazardous materials in accordance with all Local, State and Federal requirements. The Contractor shall accept responsibility for the collection, sampling, classification, packaging, labeling, accumulation time, storage, manifesting, transportation, treatment and disposal of hazardous waste, both solid and liquid. Separate all solid and liquid waste and collect all liquids used at hygiene stations and handle as hazardous materials/waste. Obtain written approval from the Engineer for all hazardous materials/waste stabilization methods before implementation. Obtain an EPA/FDEP Hazardous Waste Identification Number (EPA/FDEP ID Number) before transporting and/or disposal of any hazardous materials/waste. Transport all hazardous materials/waste in accordance with applicable 40 CFR 263 Standards. Provide a copy of all completed Hazardous Materials/Waste manifest/bills of lading to the Engineer within 21 days of each shipment. Furnish two copies of Certification of Compliance from the firm actually removing and disposing of the hazardous materials/waste stipulating, the hazardous materials/waste has been handled, transported and disposed of in accordance with this Specification. The Certification of Compliance shall be attested to by a person having legal authority to bind the company. METHOD OF MEASUREMENT The quantities of clearing or clearing and grubbing, or stripping as shown by the limits on the plans or as ordered by the Engineer shall be the number of acres (square meters) or fractions thereof, of land specifically cleared or cleared and grubbed, or stripped Fence removal will be measured by the actual linear footage of fence demolished, including gates. VOLUME 2 BID DOCUMENTS P FAA AC 150/ G

18 ITEM P-151 CLEARING AND GRUBBING BASIS OF PAYMENT Payment shall be made at the contract unit price per acre (square meter) for clearing. This price shall be full compensation for furnishing all materials and for all labor, equipment, tools, and incidentals necessary to complete the item Payment shall be made at the contract unit price per acre (square meter) for clearing and grubbing. This price shall be full compensation for furnishing all materials and for all labor, equipment, tools, and incidentals necessary to complete the item Payment shall be made at the contract unit price per acre (square meter) for stripping. This price shall be full compensation for furnishing all materials and for all labor, equipment, tools, and incidentals necessary to complete the item Payment shall be made at the contract unit price for fence removal as outlined in the plans. This price shall be full compensation for removing and disposal of fencing materials, including gates, and all labor, equipment and incidentals necessary to complete the item. Contractor shall salvage any fencing material as called for on the Plans or as directed by the O.A.R. This item shall not include payment for removal or relocation of any temporary fence installed by the Contractor under this project. Payment will be made under: Item P Item P Item P Item P Clearing per acre (square meter) Clearing and grubbing per acre (square meter) Stripping per acre Fence Removal per linear foot END OF ITEM P-151 VOLUME 2 BID DOCUMENTS P FAA AC 150/ G

19 ITEM P-152 EXCAVATION AND EMBANKMENT ITEM P-152 EXCAVATION, SUBGRADE, AND EMBANKMENT DESCRIPTION This item covers excavation, disposal, placement, and compaction of all materials within the limits of the work required to construct safety areas, runways, taxiways, aprons, and intermediate areas as well as other areas for drainage, building construction, roadways, parking, or other purposes in accordance with these specifications and in conformity to the dimensions and typical sections shown on the plans. The Engineer has made available for reference the results of a geotechnical investigation for Contractor information. The Engineer makes no guarantees about the information presented in the report. The Contractor should not assume data in the report is a guarantee of depth, extent, or character of material present. The Contractor is responsible for verifying information as required for construction. In the event that recommendations in the report contradict with the plans and/or specifications then the plans and/or specifications shall govern Classification. All material excavated shall be classified as defined below: a. Unclassified excavation. Unclassified excavation shall consist of the excavation and disposal of all material, regardless of its nature which is not otherwise classified and paid for under one of the following items. b. Rock excavation. Rock excavation shall include all solid rock in ledges, in bedded deposits, in unstratified masses, and conglomerate deposits which are so firmly cemented they cannot be removed without blasting or using rippers. All boulders containing a volume of more than 1/2 cubic yard (0.4 m 3 ) will be classified as rock excavation. c. Muck excavation. Muck excavation shall consist of the removal and disposal of deposits or mixtures of soils and organic matter not suitable for foundation material. Muck shall include materials that will decay or produce subsidence in the embankment. It may consist of decaying stumps, roots, logs, humus, or other material not satisfactory for incorporation in the embankment. d. Drainage excavation. Drainage excavation shall consist of all excavation made for the primary purpose of drainage and includes drainage ditches, such as intercepting, inlet or outlet ditches; temporary levee construction; or any other type as shown on the plans. e. Borrow excavation. Borrow excavation shall consist of approved material required for the construction of embankments or for other portions of the work in excess of the quantity of usable material available from required excavations. Borrow material shall be obtained from areas designated by the Engineer within the limits of the airport property but outside the normal limits of necessary grading, or from areas outside the airport boundaries Unsuitable excavation. All removed pavement, debris, rock and any material containing vegetable or organic matter, such as muck, peat, organic silt, roots, stumps, or sod shall be considered unsuitable for use in embankment construction and shall be legally disposed of off of airport property. Material, suitable for topsoil may be used on the embankment slope when approved by the Engineer. Remove any material to be recompacted that does not meet the requirements of b. VOLUME 2 BID DOCUMENTS P FAA AC 150/ G

20 ITEM P-152 EXCAVATION AND EMBANKMENT Subgrade Preparation. Subgrade preparation shall consist of compacting the subgrade under paved areas to meet the compaction outlined within this specification and depicted on the typical plan sections. This item will include the removal and recompaction of the in-place subgrade material to meet the in-place density requirements indicated in the typical sections. This item does not include the placement of any stabilized subgrade, subbase or base material Embankment Material. a. Use of Excavated Material. The Contractor shall assume responsibility for determining the suitability of excavated material for use on the Project in accordance with the applicable Contract Documents. Consider the sequence of work and maintenance of traffic phasing in the determination of the availability of this material. Excavated material shall meet the requirements of b. b. General Requirements for Embankment Materials. All materials used for embankment or fill on this project shall meet FDOT Type S material requirements as specified in FDOT Index Section 505. Construct embankments of acceptable material including reclaimed asphalt pavement (RAP), reclaimed concrete aggregate (RCA) and Portland cement concrete (PCC) rubble, but shall not contain muck, stumps, roots, brush, vegetable matter, rubbish, reinforcement bar or other material that does not compact into a suitable and enduring roadbed. Do not use RAP or RCA in the top 3 feet of slopes and shoulders that are to be grassed or have other type of vegetation established. Remove all waste material designated as undesirable. Use material in embankment construction in accordance with plan details or as the Engineer directs. Complete the embankment using maximum particle sizes (in any dimension) as follows: In top 12 inches: 3-1/2 inches (in any dimension). 12 to 24 inches: 6 inches (in any dimension). In the depth below 24 inches: not to exceed 12 inches (in any dimension) or the compacted thickness of the layer being placed, whichever is less. c. Strength Requirements of Suitable Material. For material meeting the requirements of b, the material shall have a minimum LBR of 10 when compacted to 100% of ASTM D1557. Materials shall be tested at a rate of 1 test for every 5,000 cubic yards. These tests shall be conducted by the Contractor s Quality Control Laboratory. For materials requiring LBR stabilization, stabilize material in accordance with FDOT Section 160. CONSTRUCTION METHODS General. Before beginning excavation, grading, and embankment operations in any area, the area shall be completely cleared and grubbed in accordance with Item P-151. The suitability of material to be placed in embankments shall be subject to approval by the Engineer. All unsuitable material shall be legally disposed of off airport property in waste areas shown on the plans. All waste areas shall be graded to allow positive drainage of the area and of adjacent areas. The surface elevation of waste areas shall not extend above the surface elevation of adjacent usable areas of the airport, unless specified on the plans or approved by the Engineer. When If the Contractor s excavating operations encounter artifacts of historical or archaeological VOLUME 2 BID DOCUMENTS P FAA AC 150/ G

21 ITEM P-152 EXCAVATION AND EMBANKMENT significance, the operations shall be temporarily discontinued and the Engineer notified per subsection The Engineer will immediately investigate the Contractor's finding and the Owner will direct the Contractor to either resume his/her operations or to suspend operations as directed. At the direction of the Engineer, the Contractor shall excavate the site in such a manner as to preserve the artifacts encountered and allow for their removal. Such excavation will be paid for as extra work. Should the Owner order suspension of the Contractor's operations in order to protect an archaeological or historical finding, or order the Contractor to perform extra work, such shall be covered by an appropriate contract modification (change order or supplemental agreement). If the Contractor s operations encounter or expose any abnormal condition indicating the presence of contaminated materials, Contractor shall cease operations immediately in the vicinity and notify the Engineer. The presence of tanks or barrels; discolored earth, metal, wood, ground water, etc.; visible fumes; abnormal odors; excessively hot earth; smoke; or other conditions that appear abnormal may indicate the presence of contaminated materials and must be treated with extreme caution. Make every effort to minimize the spread of contamination into uncontaminated areas. Immediately provide for the health and safety of all workers at the job site and make provisions necessary for the health and safety of the public that may be exposed to any potentially hazardous conditions. Ensure provisions adhere to all applicable laws, rules or regulations covering potentially hazardous conditions and will be in a manner commensurate with the gravity of the conditions. Those areas outside of the limits of the pavement areas where the top layer of soil material has become compacted by hauling or other Contractor activities shall be scarified and disked to a depth of 4 inches (100 mm), to loosen and pulverize the soil. If it is necessary to interrupt existing surface drainage, sewers or under-drainage, conduits, utilities, or similar underground structures, the Contractor shall be responsible for and shall take all necessary precautions to preserve them or provide temporary services. When such facilities are encountered, the Contractor shall notify the Engineer, who shall arrange for their removal if necessary. The Contractor, at his or her expense, shall satisfactorily repair or pay the cost of all damage to such facilities or structures that may result from any of the Contractor s operations during the period of the contract Excavation. No excavation shall be started until the work has been staked out by the Contractor and the Engineer has staked out the work and provided obtained from the Contractor, the survey notes of the elevations and measurements of the ground surface to the Engineer for review and approval. All areas to be excavated shall be stripped of vegetation and topsoil. Topsoil shall be stockpiled for future use in areas designated on the plans or by the Engineer. All suitable excavated material shall be used in the formation of embankment, subgrade, or other purposes shown on the plans. All unsuitable material shall be legally disposed of as shown on the plans off airport property. When the volume of the excavation exceeds that required to construct the embankments to the grades indicated, the excess shall be used to grade the areas of ultimate development or disposed as directed by the Engineer suitable surplus material shall be stockpiled in the area shown on the plans and remain the property of the Owner. When the volume of excavation is not sufficient for constructing the embankments to the grades indicated, the deficiency shall be obtained from borrow areas. The grade shall be maintained so that the surface is well drained at all times. When necessary, VOLUME 2 BID DOCUMENTS P FAA AC 150/ G

22 ITEM P-152 EXCAVATION AND EMBANKMENT temporary drains and drainage ditches shall be installed to intercept or divert surface water that may affect the work. a. Selective grading. When selective grading is indicated on the plans, the more suitable material designated by the Engineer shall be used in constructing the embankment or in capping the pavement subgrade. If, at the time of excavation, it is not possible to place this material in its final location, it shall be stockpiled in approved areas so that it can be measured for payment as specified in paragraph b. Undercutting. Rock, shale, hardpan, loose rock, boulders, or other material unsatisfactory for safety areas, subgrades, roads, shoulders, or any areas intended for turf shall be excavated to a minimum depth of 12 inches (300 mm) below the subgrade or to the depth specified by the Engineer. Muck, peat, matted roots, or other yielding material, unsatisfactory for subgrade foundation, shall be removed to the depth specified. Unsuitable materials shall be disposed off the airport. The cost is incidental to this item. This excavated material shall be paid for at the contract unit price per cubic yard (per cubic meter) for unclassified excavation. The excavated area shall be backfilled with suitable material obtained from the grading operations or borrow areas and compacted to specified densities. The necessary backfill will constitute a part of the embankment. Where rock cuts are made, backfill with select material. Any pockets created in the rock surface shall be drained in accordance with the details shown on the plans. A material that is high in moisture content and which yields under proof rolling does not necessarily classify as unsuitable material. Proof rolling shall be as indicated in paragraph f Proof Rolling. Undercutting of suitable but wet material does not constitute unsuitable material. The Contractor is required to manipulate and dry the material unless the material is classified as unsuitable. If the material is classified as unsuitable material, then the Contractor shall remove the material to the depth directed by the Engineer. The backfill of undercut areas shall not begin until the volume of the excavation is determined by cross sections or other means acceptable to the Engineer. The backfill shall be accomplished in the same manner as other embankment called out in this section with regard to the thickness and compaction requirements. The backfill material may consist of unclassified excavation, milled asphalt pavement (mixed with soil at a maximum proportion of 80 percent millings), crushed recycled Portland cement concrete or other materials acceptable to the Engineer. All backfill shall pass 1-1/2-inch sieve. c. Overbreak. Overbreak, including slides, is that portion of any material displaced or loosened beyond the finished work as planned or authorized by the Engineer. All overbreak shall be graded or removed by the Contractor and disposed of as directed by the Engineer. The Engineer shall determine if the displacement of such material was unavoidable and his or her decision shall be final. Payment will not be made for the removal and disposal of overbreak that the Engineer determines as avoidable. Unavoidable overbreak will be classified as Unclassified Excavation. d. Removal of utilities. The removal of existing structures and utilities required to permit the orderly progress of work will may be accomplished by someone other than the Contractor; VOLUME 2 BID DOCUMENTS P FAA AC 150/ G

23 ITEM P-152 EXCAVATION AND EMBANKMENT for example, the utility unless otherwise shown on the plans. All existing foundations shall be excavated at least 2 feet (60 cm) below the top of subgrade or as indicated on the plans, and the material disposed of as directed by the Engineer. All foundations thus excavated shall be backfilled with suitable material and compacted as specified. e. Compaction requirements. The subgrade under areas to be paved shall be compacted as indicated in the plans. shall be compacted to a depth of 36 inches and to a density of not less than 95 percent of the maximum density as determined by ASTM D1557. The natural in-place densities shall be not lower than the densities indicated in the typical section. If the in-place densities are lower, the soil shall be removed and recompacted to a density not lower than the densities indicated in the typical sections. The material to be compacted shall be within ±2% of optimum moisture content before being rolled to obtain the prescribed compaction (except for expansive soils). In order to achieve uniform moisture content throughout the layer, wetting or drying of the material and manipulation shall be required when necessary. Should the material be too wet to permit proper compaction or rolling, all work on all of the affected portions of the embankment shall be delayed until the material has dried to the required moisture content. Sprinkling of dry material to obtain the proper moisture content shall be done with approved equipment that will sufficiently distribute the water. Sufficient equipment to furnish the required water shall be available at all times. Samples of all soil materials for testing, both before and after placement and compaction, shall be taken for each 1,000 square yards of finished ground surface in an excavation section. Based on these tests, the Contractor shall make the necessary corrections and adjustment in methods, materials or moisture content in order to achieve the proper density. The in-place field density shall be determined in accordance with ASTM D6938 using Procedure A, the direct transmission method, and ASTM D6938 shall be used to determine the moisture content of the material. The machine shall be calibrated in accordance with ASTM D6938.Stones or rock fragments larger than 4 inches (100 mm) in their greatest dimension will not be permitted in the top 6 inches (150 mm) of the subgrade. The finished grading operations, conforming to the typical cross-section, shall be completed and maintained at least 1,000 feet (300 m) ahead of the paving operations or as directed by the Engineer. Tests shall be completed by the Contractor Quality Control Test Firm. Copies of all tests shall be provided to the Engineer for review. The Owner reserves the right to obtain independent Quality Assurance testing for verification if so desired. All loose or protruding rocks on the back slopes of cuts shall be pried loose or otherwise removed to the slope finished grade line. All cut-and-fill slopes shall be uniformly dressed to the slope, cross-section, and alignment shown on the plans or as directed by the Engineer. Blasting shall not be allowed. f. Proof rolling. After compaction is completed, the subgrade area under roadway pavements shall be proof rolled with a 20 ton (18.1 metric ton) Tandem axle Dual Wheel Dump Truck loaded to the legal limit with tires inflated to 80/100/150 psi (0.551 MPa/0.689 VOLUME 2 BID DOCUMENTS P FAA AC 150/ G