3-07. Technical Specifications.pdf
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- Attached to
- 751 Front Street Stormwater Improvements
- Solicitation number
- Not on record
- Issued by
- Lehigh County, Pennsylvania
About this file
Technical Specifications Summary
This document comprises the technical specifications and scope of work for the Front Street and Liberty Street Stormwater Improvements project administered by Catasauqua Borough in Lehigh County, Pennsylvania. The project scope includes the installation of new stormwater inlets and reinforced concrete pipe (RCP) storm sewer infrastructure to address limited existing drainage infrastructure in the neighborhood. The base bid work encompasses mobilization, traffic maintenance and protection, temporary erosion and sediment controls, installation of new stormwater inlets, removal of existing storm sewer infrastructure, installation of RCP storm sewer piping, permanent pavement restoration, and record document preparation. Alternate Bid No. 1 includes sidewalk improvements with new downspout installations and concrete sidewalk construction along Liberty Street, while Alternate Bid No. 2 addresses ADA curb ramp removal and replacement with reinforced concrete pipe connecting drainage structures SD-02 and SD-03. All base bid work must be completed within 45 calendar days from the issuance of the Notice to Proceed. The project is fully funded through grant funding received by the Borough.
The contract specifications reference Pennsylvania Department of Transportation Publication 408 standards and require contractors to comply with multiple technical sections covering excavation and backfill, drainage structures, concrete curb ramps and sidewalks, Superpave asphalt paving, plain cement concrete curb installation, reinforced concrete pipe installation, and utility adjustments. Key pricing terms include mobilization capped at $10,000 as a lump sum, maintenance and protection of traffic paid as a percentage of the lump sum bid, and a fixed allowance of $5,000. The contractor is responsible for all construction layout, utility coordination through PA One Call notification (72 hours minimum advance notice), preconstruction video documentation, and compliance with nondiscrimination and sexual harassment provisions of the grant contract. The specifications mandate a 24-month maintenance bond guaranteeing resurfacing work quality, comprehensive record drawings with survey-verified elevations and utility locations, and restoration of all disturbed areas to pre-construction condition at no additional cost to the owner.
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TABLE OF CONTENTS
TECHNICAL SPECIFICATIONS
00000 - Scope of Work
01000 - General Requirements
01781 - Record Documents
02010 - Cleaning and Restorations
02227 - Excavation and Backfill
02270 - Temporary Soil Erosion & Sediment Control
02310 - Subbase
02394 - Utility Adjustments
02431 - Drainage Structures
02509 - Curb Ramps & Sidewalk
02513 - Superpave Asphalt
02528 - Plain Cement Concrete Curb
02550 - Sawcutting � Bituminous and Concrete Surfaces
02612 - Reinforced Concrete Pipe
07714 - Gutters and Downspouts
OTHER DOCUMENTS
1. Project Plans: �Front Street Stormwater Improvements� (14 Sheets), prepared by Remington &
Vernick Engineers of Allentown, PA.
Scope of Work 00000-1
SECTION 00000
SCOPE OF WORK
PART 1 - GENERAL
1.01 Project Description
A. Catasauqua Borough is performing work to improve the stormwater drainage structures located on Front Street and Liberty Street. The existing neighborhood currently suffers from having limited stormwater infrastructure. This project proposes to install new inlets on the existing roadway to capture the stormwater in the local drainage area. The scope of work is more fully described in the Project Specifications herein and on the Project Plans.
B. Project is being fully funded from grant funding received by the Borough.
1.02 Project Location
A. The project site is located in Catasauqua Borough, Lehigh County, Pennsylvania on
Front Street and Liberty Street as shown on the Project Plans.
1.03 Work Included
A. Base Bid � Front Street & Liberty Street Drainage Improvements
1. Mobilization.
a. The assembly and set-up of the general plant required to comply with the contract and with local and state laws and regulations. This includes contractor�s offices, shops, plants, storage areas, and sanitary or other facilities.
This work includes obtaining the required permits, insurance, bonds, and any other initial items required for the start of the work.
2. Maintenance and Protection of Traffic.
a. The Contractor shall erect or place and maintain in good condition, barricades, warning signs, lights, flares, approved yellow-flashing light units, rubber traffic cones, and other warning and danger signals and devices, appropriate and adequate for the specific needs and subject to the Engineer's approval, at working sites, closed roads, intersections, open excavations, locations of material storage, standing equipment and other obstructions, at points where the usable vehicular or pedestrian traffic width of the road or sidewalk is reduced, at points where traffic is deflected from its normal courses or lanes, and at other places of danger to vehicular or pedestrian traffic.
3. Temporary erosion and sediment controls.
4. Install new stormwater inlets, remove existing storm sewer infrastructure, and install
RCP storm sewer piping, as shown on the Project Plans.
Scope of Work 00000-2
5. Permanently Pave all disturbed areas.
6. Provide Record Documents.
B. Alternate No. 1 � Sidewalk Improvements
1. Install new downspouts from adjacent properties and connect them to the proposed stormwater infrastructure.
2. Install new concrete sidewalk along Liberty Street as well as the existing curbing along the sidewalk.
C. Alternate No. 2 � ADA Curb Ramp and Pipe
1. Remove existing ADA curb ramp at the northeast corner of Liberty Street and Front
Street
2. Furnish and install new reinforced concrete pipe connecting SD-02 & SD-03.
3. Install new ADA Curb ramp at the northeast corner of Liberty Street and Front Street.
1.04 General Requirements
A. Construction layout of all proposed elements of construction to the specified lines and grades. All limits of work shall be marked out and approved by the Engineer prior to excavation. Proposed grades are not guaranteed, and shall be verified in the field during construction layout. Any discrepancies in proposed grades shall be brought to the attention of the Engineer so that design adjustments can be made prior to construction.
B. Setup and maintenance of temporary erosion and sediment controls. The Contractor may be required to install additional erosion controls at the direction of the Engineer. No additional payment will be made for erosion controls. The Contractor will be required to clean and remove any material that erodes from excavations associated with the project.
No additional payment will be made for clean up and disposal of eroded material.
C. Removal of existing features as incidental to the contract work items, including but not limited to the following: metal plates, pipes, concrete slabs, stone, bricks, and all foreign materials encountered during excavation for contract items.
D. Installation of storm sewer inlets, manholes and piping in the locations shown. The
Contractor shall be responsible for determining the exact location of underground utilities.
1.05 Additional Requirements
A. All Base Bid work by the Contractor, as described in these specifications, must be 100% complete within the contract time limit of 45 calendar days. The contract time limit shall begin once the written Notice to Proceed order has been issued to the Contractor.
Scope of Work 00000-3
B. The cost of all related incidental work, dust control, cleaning and restorations shall be included in the various unit prices bid. These activities are not separate pay items.
C. All materials, construction procedures, type and use of equipment, measurement and payment shall be in accordance with the Commonwealth of Pennsylvania Department of
Transportation Specifications, Publication 408, unless otherwise noted and/or modified by these specifications.
D. The Contractor is responsible for the construction layout of this project. The Contractor shall forward all construction layout survey information to the Engineer for reference including: benchmarks, stationing and elevations.
E. All contractors and other persons utilizing this specification and the information contained herein are cautioned to comply with the requirements of Pennsylvania Act 172, entitled
�Excavation and Demolition Work Protection of Underground Utilities.� Each individual contractor using the project plans must verify the location and depth of all underground utilities and facilities before starting work. The Contractor shall notify �PA One Call� (1-
800-242-1776) at least 72 hours prior to the start of any excavation.
F. The Contractor shall establish contact with an individual from each local utility prior to commencement of excavation. The Contractor shall notify the Engineer and the utility owner immediately should a conflict occur in the limits of construction. The Contractor shall be responsible for coordination of all work to be performed by the utility owner with regards to the work included in this contract. Additional payment will not be made for any delays incurred or any additional work performed due to conflicts with existing utility mains or service lines.
G. All paved asphalt or concrete areas disturbed during construction shall be restored to a condition at least equal to that which existed prior to the start of construction.
H. All grassed areas disturbed during construction shall be topsoiled, fertilized and seeded.
No additional payment will be made for restoration of grassed areas, but the cost shall be included in the various items of the proposal.
I. All fill shall be placed in twelve inch (12�) thick lifts and thoroughly compacted to the satisfaction of the Engineer. If borrow fill is required, it shall be subject to the approval of the Engineer.
J. The Contractor shall be responsible for the location and preservation of underground and surface utilities and structures at / or adjacent to the site of construction. It shall be at the
Contractor�s own expense to repair or replace anything that is damaged by the Contractor.
K. All construction details not shown shall be in accordance with PennDOT standards as detailed in:
1. PennDOT Specifications, Pub. 408, latest revision.
2. PennDOT Standards for Roadway Construction, Pub. 72M, latest revision.
Scope of Work 00000-4
These standards can be purchased at: PA Department of Transportation, Sales Store, P.O.
Box 2028, Harrisburg, PA 17105-2028, (717-787-6746).
L. If encountered, payment will not be made for the excavation of rock, but the cost shall be included in the various items of the proposal.
M. Payment will not be made for the relocation of signs, but shall be included in the various items of the proposal.
N. The Contractor shall refer to Sheet 3 of the project plans for additional requirements.
O. The project plans, entitled �Front Street Stormwater Improvements� are appended and hereby included with the project specifications.
P. The Contractor is required to comply with the nondiscrimination/sexual harassment provisions found in subsection (b) of article V of the grant contracts funding this project.
PART 2 � PRODUCTS
Not used.
PART 3 � EXECUTION
Not used.
PART 4 � QUANTITY AND PAYMENT
Not used.
END OF SECTION
General Requirements 01000-1
SECTION 01000
GENERAL REQUIREMENTS
PART 1 - GENERAL
1.01 General
A. Only major items of work are given in the Bid Form, but it is the intent of the specifications to secure a completely interconnected and functionable system, and should any workmanship or materials be required which are obviously necessary to carry out the full intent and meaning of the plans and specifications or to be reasonably inferred therefrom, the cost of such workmanship or materials shall be included in the items in the bid form.
B. Where construction is being performed in traveled roadways or rights-of-way, the Contractor is to provide all necessary traffic controls and devices in accordance with the current Pennsylvania Department of Transportation standards.
C. The Contractor shall notify all utility companies prior to Construction of utilities, curbing and paving.
D. Prior to any excavation, the Contractor shall have all utilities marked and shall excavate or otherwise determine the exact location and elevations of said utilities. The Contractor shall notify the Engineer of any conflicts. The Contractor shall arrange for any necessary utility relocations or field changes and shall reschedule his operations appropriately.
E. The Contractor, in the construction of the project, shall not stockpile materials or store equipment on any private property; except areas designated by the plans or as directed by the Engineer. If so required, the Engineer may direct the Contractor to have equipment removed from any project during weekend hours.
F. All work of refilling sunken ditches, repaving over trenches and keeping streets and sidewalks in passable condition shall be done to the satisfaction of the Owner during the construction of the project as well as during the maintenance period. If any remedial work is not done within three (3) days after written notice is given by the Engineer, the work may be done by the Owner and charged to the Contractor.
G. Special care shall be taken to prevent contamination, siltation, or interference of any kind with the stream flows or ponds along the line of work. No waste matter of any kind will be allowed to discharge into the stream flows or impounded water of any ponds or other bodies of water.
H. The Contractor is to insure that proper measures for erosion control are employed and provide for the early establishment of vegetation that will help avoid erosion problems during and after construction. It is expected that the Contractor will anticipate possible
General Requirements 01000-2 problems and provide timely and adequate control to prevent or minimize adverse effects.
I. The Contractor shall apply and pay for all permits that may be required for any of the work involved with this project.
J. The Contractor is to notify residents by door-hangers, at least forty-eight (48) hours in advance, before starting construction work that will directly affect their property frontage, driveway(s) and/or on-street parking.
K. The Contractor will be provided with one (1) set of contract specifications and full size drawings, where applicable. Electronic copies will be available by request in .pdf format. The cost for any additional copies shall be included in various items of the proposal.
L. All notes on plans shall be made a part of the specifications.
M. The Contractor shall notify the Engineer at least forty-eight (48) hours in advance of any work scheduled for Saturdays. There will be no work permitted on Sundays or holidays. This project will receive full-time inspection and the normal working hours for the Inspector are from 7:00 AM to 3:30 PM, Monday through Friday. Any overtime inspection costs which are avoidable will be reimbursed by the Contractor.
N. During the construction phase of the project, travel lanes shall remain open at the end of each day.
O. The Contractor shall take extreme care in the placement of the asphaltic tack coat so as to not make it visible on the concrete curb or inlet top units. It shall be the Contractor's responsibility to keep the concrete curb and inlet top units clean of this material.
P. Separate payment will not be made for construction layout. The costs for construction layout for all site work shall be included in the various items of the proposal.
1.02 Public Utilities
A. The Contractor is required to ascertain all the facts concerning the location of utilities.
B. The Contractor shall cooperate with the utility Owners in the adjustment of their facilities and shall notify the utility Owners not less than ten (10) days in advance of the time scheduled to perform any work that will impact or affect their facilities.
C. The Contractor shall permit the Owners of utilities, or their agents, access to the site of the work at all times in order to relocate, construct or protect their lines and he shall cooperate with them in performing this work.
General Requirements 01000-3
D. Separate payments will not be made for the coordination and cooperation of the Contractor with the utility companies, nor for the protection or replacement of utilities as specified hereinbefore and the bidder shall include all such costs in the prices bid for the various scheduled items in the Bid Form.
1.03 Preconstruction Video
A. The Contractor shall, at no extra cost to the Owner, take DVD video recordings of the site prior to the commencement of construction. The video recording shall accurately depict the existing preconstruction condition of all curbs, sidewalks, driveways, fences, lawns, landscaped area, mailboxes, street furniture and all other appurtenances within, or outside a 25 foot radius of the limits of the construction of the project. One (1) copy of the video recording shall be provided to the Engineer. The date of the DVD video, as well as identification as to the location which the video depicts must be provided.
1.04 Maintenance and Protection of Traffic
A. The Contractor shall erect or place and maintain in good condition, barricades, warning signs, lights, flares, approved yellow-flashing light units, rubber traffic cones, and other warning and danger signals and devices, appropriate and adequate for the specific needs and subject to the Engineer's approval, at working sites, closed roads, intersections, open excavations, locations of material storage, standing equipment and other obstructions, at points where the usable vehicular or pedestrian traffic width of the road or sidewalk is reduced, at points where traffic is deflected from its normal courses or lanes, and at other places of danger to vehicular or pedestrian traffic.
B. The Contractor shall provide sufficient watchmen and traffic directors and shall take all other precautions, including any that may be ordered by the Engineer, which are necessary for the safety of the public and protection of the work.
C. The Contractor shall obtain the approval of the Engineer and consent of all appropriate authorities having jurisdiction, for any detours which may be required. The Contractor shall make all necessary arrangements with such authorities regarding the establishment, maintenance and repair of such detours, the regulations and direction of traffic thereon, and the installation and maintenance of signs and traffic devices.
D. Before beginning work on any phase of the project, the Contractor shall furnish and install warning signals, barricades, wood traffic guides, lights, flares and other devices necessary, in the opinion of the Engineer, to protect the public during that phase of his operations.
E. If battery operated flashing warning lights are used, they shall conform to the specifications prepared by The Pennsylvania Department of Transportation, Official Traffic Control Devices. These specifications require, in part, that the flashing lights be weatherproof and reasonably tamper-proof and theft proof, be equipped with seven inch (7") minimum diameter amber plastic lens, shall operate with a flash rate of between 55
General Requirements 01000-4 and 75 flashes per minute with a flash duration of not less than 18% of each flash cycle;
and shall be inspected and cleaned daily so as to maintain the lights in the proper working condition.
F. Road construction signs shall be placed at each end of the project along with every connecting intersection. At the start and end of each day, detour signs shall be placed if required.
G. During the work on this project, the Contractor shall provide and/or be prepared to provide traffic protection devices in accordance with the Manual on Uniform Traffic Control Devices and PennDOT Pub. 212. The minimum numbers set forth in the Schedule shall be on hand at each separate project site prior to the commencement of any work (or phase of work) and shall be maintained available on the project site throughout the period of the project (or phase). Failure to provide and maintain the minimum number of devices shall be sufficient cause for the Engineer to order cessation of work. When lack of any required safety devices presents an immediate hazard, the Engineer may order that such devices be provided by the Owner or by other Contractors, deducting the cost thereof from any monies due or becoming due the Contractor lacking the required devices.
H. Additional devices shall be provided by the Contractor as required or directed prior to the commencement of any operation or phase of an operation requiring such devices.
I. Uniform traffic directors (flagpersons) shall be provided whenever alternate two-way traffic is maintained in a single lane, whenever Contractor's operations require closing of a lane or portion of a lane on a multiple lane roadway, whenever the Contractor's equipment or vehicles are entering or leaving active roadways at other than normal street intersections, whenever a Contractor's operations will be contrary to or cause confusion regarding normal traffic control devices (traffic signals, signs, etc.) within a work area and whenever else, in the opinion of the Engineer, the Contractor's operations cause such hazards as to require the use of Traffic Directors.
J. Traffic Directors shall be responsible and thoroughly familiar with their responsibilities, and, while serving as Traffic Directors, shall not be required to perform any other duties. Traffic Directors shall be provided with an orange or red flag, an orange, orange and white, or lime green traffic safety vest and white or orange hard hat or other appropriate head gear. The Contractor may, at his option, secure the services of uniformed policemen having jurisdiction in the locality within which the project is located. Provision of such uniformed policemen will be deemed sufficient in meeting the requirements of this specification.
K. Traffic must be maintained throughout each separate work area during construction. At least one 12' lane must be maintained for traffic during all actual construction periods and at least two 10' lanes must be maintained for traffic at all other times.
General Requirements 01000-5
L. The Contractor is advised that there may be heavy commuter traffic during the morning from 7:30 AM to 9:00 AM and the afternoon from 3:00 PM to 5:30 PM.
M. Construction shall be so staged to maintain at least one lane for traffic in each direction throughout each separate work area during the morning 7:30 AM to 9:00 AM and the afternoon 3:00 PM to 5:30 PM weekday periods of peak traffic.
N. Any restriction of traffic at any time shall be subject to the approval of the Engineer, and the Municipal Police Department. Any restriction of traffic on a Pennsylvania State Highway shall be subject to regulations and permitting prescribed by The Pennsylvania Department of Transportation. The Contractor shall submit a schedule of staged construction to the Engineer for approval prior to any restriction of traffic.
O. Should construction be in close proximity to a school or school traffic route, and be commenced during an active school period, the Contractor shall provide open traffic lanes to accommodate school bus and school related traffic.
P. If detours are proposed by the Contractor, they are subject to the review and approval of the Engineer, the Municipal Police Department and/or The Pennsylvania Department of Transportation, as applicable.
Q. A detour plan and schedule shall be prepared by the Contractor for each proposed detour and submitted to each of the approving agencies previously mentioned. All detour signs shall conform to the requirements for Traffic Control Devices.
R. Temporary traffic stripes will be necessary to control and guide traffic through individual work areas. The Contractor shall submit a scheme for approval by the Engineer of all temporary traffic stripes prior to removal of any existing traffic stripes.
S. Construction of proposed utility pipes or storm pipes across existing roadways shall be so staged to maintain one lane in each direction. Trenches shall not remain open overnight.
T. The Contractor shall provide adequate means of access for fire, police and emergency vehicles throughout the length of the project. Contractor shall also provide for safe and adequate means of access to adjacent properties, both private and public.
U. The cost of all work as specified hereinbefore and all other work required to protect public safety and maintaining traffic flow shall be included in the prices bid for the various items in the Bid Form, unless specifically requested as a bid item in which case payment will be made as a lump sum.
1.05 Reference to the Standard Specifications
A. Portions of the work performed under this contract shall comply with the requirements of the Commonwealth of Pennsylvania Department of Transportation Publication 408, General Requirements 01000-6 latest edition and supplements and the Pennsylvania Department of Transportation Standard Construction Details as applicable and all requirements modified, as amended or supplemented and whose specifications are made part of these specifications.
B. The Standard Specifications are made part of these specifications by this reference as if they were set forth in full. It is the responsibility of the prospective bidder to be familiar with these Standard Specifications.
1.06 Dust Control
A. The Contractor will be required to maintain all excavations, embankments, stockpiles, haul roads, permanent access roads, plant sites, waste areas, borrow areas, and all other work areas within or outside the project boundaries free from dust which would cause a hazard or nuisance to others. Approved temporary methods of stabilization consisting of sprinkling, chemical treatment, light bituminous treatment or similar methods will be permitted to control dust. Sprinkling, to be approved, must be repeated at such intervals as to keep all parts of the disturbed area at least damp at all times, and the Contractor must have sufficient competent equipment on the job to accomplish this if sprinkling is used. Dust control shall be performed as the work proceeds and whenever a dust nuisance or hazard occurs. If any dust control is not done within twenty-four (24) hours after written notice is given by the Engineer, the work may be done by the Owner and charged to the Contractor. Costs for dust control shall be included in the prices bid for the various items in the bid form.
1.07 Testing Materials
A. Except as may be provided elsewhere, test or analysis of materials which are usually tested after delivery to the site, such as concrete aggregate, mixed and placed concrete, and similar materials; will be performed by a test laboratory which will be approved by the Engineer and selected and paid for by the Contractor. The preliminary testing of concrete mixtures and test or analysis of other materials, samples of which are to be submitted prior to delivery, will also be performed by the laboratory and paid for by the Contractor.
B. If the Engineer orders sampling and analysis or tests of materials which are usually accepted on certification of the manufacturer but which appear defective or not conforming to the requirements of the Specifications, the Contractor will bear the reasonable costs of sampling, transportation, test and analysis.
1.08 Test Cores and Core Analysis
A. The Contractor shall be responsible for providing test cores and core analysis of all bituminous concrete surface course and bituminous stabilized leveling and base course items upon completion of these items. Test coring and core analysis shall be performed by a testing laboratory equipped and experienced in performing this work. The testing laboratory shall be approved by the Engineer. Coring and core analysis shall be
General Requirements 01000-7 performed in strict compliance with Section 106 of the Commonwealth of Pennsylvania Department of Transportation Publication 408.
1.09 Mobilization
A. DESCRIPTION�This work is the assembly and set-up of the general plant required to comply with the contract and with local and State laws and regulations. General plant includes Contractor's offices, shops, plants, storage areas, and sanitary or other facilities.
This work includes obtaining the required permits, insurance, bonds, and any other initial items required for the start of the work.
B. MATERIAL�These material and furnishings will not be considered a part of the other completed contract items.
(a) Mobilization shall be performed in strict compliance with Section 608 of the Commonwealth of Pennsylvania Department of Transportation Publication 408.
PART 2 � PRODUCTS
Not used
PART 3 � EXECUTION
Not used
PART 4 � QUANTITY AND PAYMENT
4.01 Mobilization (Max $10,000)
A. Quantity of �Mobilization (Max $10,000)� will not be measured for this project, but shall be bid as a lump sum (LS) as shown on the Bid Form.
B. Payment for �Mobilization (Max $10,000)� will be made as lump sum (LS) based on the amount bid once all required bonds and insurances have been provided and upon the commencement of physical construction.
4.02 Maintenance and Protection of Traffic
A. Quantity of �Maintenance and Protection of Traffic� will not be measured for this project, but shall be bid as a lump sum (LS) as shown on the bid form.
General Requirements 01000-8
B. Payment for �Maintenance and Protection of Traffic� will be made at a percentage of the lump sum (LS) amount bid. The percentage estimated for each payment application shall be proportional to the dollar amount of the contract completed for that payment period.
4.03 Allowance (Required Fixed Bid Amount of $5,000)
A. Quantity of �Allowance (Required Fixed Bid Amount of $5,000)� will not be measured for this project, but shall be bid as an allowance (AL) as shown on the Bid Form.
B. Payment for �Allowance (Required Fixed Bid Amount of $5,000)� will be made as allowance (AL) based on the amount bid once all required bonds and insurances have been provided and upon the commencement of physical construction.
4.04 General Requirements
A. Quantity of all other items covered in the General Requirements will not be measured for this project, but the work shall be performed as incidental to the proposed work.
B. Payment for all other items covered in the General Requirements will not be made for this project, but the cost shall be included in the various items of the proposal.
Record Documents 01781-1
SECTION 01781
RECORD DOCUMENTS
PART 1 � GENERAL
1.01 Summary
A. This section consists of the requirements for preparing and delivering record drawings.
B. This section describes only the minimum requirements for record drawings. Other contract sections may impose additional requirements on record drawings and documents and the more stringent requirements must be followed.
1.02 Definitions
A. Record Drawings. Record drawings consist of the collective plans, details, forms and other documents which have been annotated to describe the actual location of constructed improvements.
PART 2 � MATERIALS
2.01 Not used.
PART 3 � EXECUTION
1.01 Record Plans.
A. The Contractor shall be responsible for maintaining accurate records of all improvements as the project progresses.
B. All elevations, angles and measurements used for record drawings shall be obtained by the Contractor according to the standard practices of the surveying profession.
C. All elevations used for record drawings shall be based on the project benchmarks designated on the project plans. If all project benchmarks have been compromised or removed, then the Contractor shall notify the Engineer to establish an acceptable benchmark.
D. Record Drawing Tolerances.
1. Measured horizontal (±0.10 feet) and vertical (±0.05 feet) locations of underground utilities and appurtenances, referenced to permanent surface improvements.
2. Measured locations of internal utilities and appurtenances concealed in construction, referenced to visible and accessible features of the Work.
3. Field changes of dimension and detail.
Record Documents 01781-2
E. Record Drawing Formatting.
1. PDF. Record drawings may be developed electronically using a PDF of the original project plans overlaid with as-built information. Record information must be clearly and accurately depicted in red. The Contractor shall provide (1) electronic copy and (1) hard copy to the Engineer.
2. CAD. Record Drawings may be developed using computer automated drafting
(CAD) software. Upon request, the Engineer may provide the Contractor with design CAD files for the purpose of developing record drawings. Record information must be placed on a separate layer within the CAD model. The
Contractor shall provide (1) electronic copy and (1) hard copy to the Engineer.
1.02 Record Details or Shop Drawings.
A. The Contractor shall provide accurate record details and/or shop drawings to describe any work that was not completed according to the details shown on either the project plans or in referenced standards.
1.03 Piped Underground Utilities (e.g. storm sewer, sanitary sewer, water, gas).
A. Actual size, type and length of each pipe segment.
B. Actual size and type of each fitting, bend and valve. Information shall include the type of each valve or fitting and the degree of each bend.
C. Actual invert elevations at each structure (including invert elevations in and out), actual invert elevations at each bend, actual grate and/or rim elevations, and high and low points. In general, the contractor shall verify each design elevation shown on the project plans and indicate on the record plan any actual elevation which deviates from the corresponding design elevation.
D. At each fitting, bend and valve, horizontal dimensions shall be provided to three permanent surface features.
1.04 Electrical/Communication.
A. Actual size, type and depth of each conduit, duct bank or cable, including empty conduits or duct banks, as well as the location of any hand holes, pull boxes or junction boxes.
1.05 Curb Ramps.
A. The requirements for recording distances, slopes and cross-slopes for curb ramps are based on requirements from the State Department of Transportation or the local municipality, depending on whether or not a curb ramp is located within a State
Right-of-Way. The requirements for recording actual curb ramp measurements are separate and distinct from the construction requirements for curb ramps (see
Record Documents 01781-3 applicable construction details and specifications for the construction of curb ramps).
B. State Right-of-Way: The Contractor shall provide all actual measured distances, slopes and cross-slopes at all points of interest on newly constructed curb ramps, as necessary to complete curb ramp inspection forms and verification for the State
Department of Transportation. The measurements and slopes shall be taken at each of the locations shown on the State Department of Transportation curb ramp inspection form for each individual curb ramp and may include taking measurements and slopes on the surrounding sidewalk areas and on the cartway surface.
C. Local Right-of-Way: The Contractor shall provide actual measured distances, slopes and cross-slopes for all curb ramp surfaces, including the ramp, side flares and turning spaces.
1.06 Building Construction.
A. Actual installation shall be indicated with all installed items clearly identified.
Location of installed items and any deviations from contract documents shall be so shown with boxes around the actual numbers or labels.
B. Actual finished floor elevation.
1.07 Record Drawings Verification.
A. After record drawings and documents have been delivered to the Engineer, the
Owner or the Engineer may make a written request to the Contractor for verification of any aspect of the record drawings and documents.
B. Upon receipt of a written request for verification of any aspect of the record drawings, the Contractor shall take measurements, take photographs, and create field sketches, as may be required by the Owner to verify the record drawings. This work may include digging test pits and making necessary restorations.
C. If the Contractor fails to complete record drawing verification to the satisfaction of the Owner or within a timely manner, then the Owner may direct the Engineer or an independent third party to perform record drawing verification work. The costs associated with record drawing verification work may be deducted from payment for other work completed by the Contractor.
PART 4 � QUANTITY AND PAYMENT
4.01 Record Documents
A. Quantity of "Record Documents" will not be measured for this project.
Record Documents 01781-4
B. Payment for "Record Documents" will be made a lump sum (LS) for complete record documents provided for each base bid and alternate bid area. Payment for
Record Drawings will be made after all record drawings and documents have been delivered to the Engineer and have been accepted by the Engineer. Payment for record drawings will only be made once. There will be no additional payment for record drawings associated with change order work.
Cleaning and Restorations 02010-1
SECTION 02010
CLEANING AND RESTORATIONS
PART 1 - GENERAL
1.01 Description
A. Contractor shall provide all equipment, labor & materials required to clean and restore the site to at least the existing condition.
B. Maintain premises and public and/or private properties free from accumulations of waste, debris and rubbish caused by work operations.
C. At the completion of work, remove waste materials, rubbish, tools, equipment, machinery and surplus materials; clean all visually exposed surfaces; leave project clean and ready for occupancy.
D. At the completion of work, restore or replace, where and as directed by the Owner, any public or private property disturbed or damaged by Contractor's work operations to a condition at least equal to that existing prior to beginning work, or as otherwise specified. Materials, equipment and methods shall be approved by the Owner.
PART 2 - PRODUCTS
2.01 Materials
A. For restorations, use the following materials. All materials shall comply with the following Articles of the Commonwealth of Pennsylvania, Department of
Transportation Specifications latest revision and these specifications.
B. Grass restorations: See Sections 802, "Topsoil Furnished and Placed", Section 804
�Seeding and Soil Supplements�, and Section 809 "Sodding".
C. Pavement restorations: See Section 409 "Superpave Asphalt".
D. Restoration of curbs and other concrete structures:
1. Concrete:
a. Shall be Class AA conforming to Section 704, �Cement Concrete�
b. Design Compressive Strength: 3,500 psi at 28 days.
c. Air-entrainment shall be 6.0% + / - 1.5%.
2. Joint Fillers: Section 705.4.
3. Curing Compound: Section 711.2.
Cleaning and Restorations 02010-2
E. All other Materials: As approved by the Owner or authorities having jurisdiction.
PART 3 � EXECUTION
3.01 Methods of Conducting Work - Cleaning
A. Requirements of regulatory agencies:
All excess material shall be removed from the site and disposed of by the Contractor at his expense. Cost to be included in the Base Bid for the Project. The disposal site shall be in permanently established licensed landfills.
B. Cleaning during construction:
Provide periodic cleaning to keep the work, the site, and adjacent properties free from accumulations of waste materials, rubbish and windblown debris resulting from construction operations. This includes dust, dirt and mud.
Provide on-site containers for the collection of waste materials, debris and rubbish.
Maintain containers as required. Containers shall be covered as required to prevent unauthorized use.
C. The Contractor will be required to maintain all excavations, embankments, stockpiles, haul roads, permanent access roads, plant sites, waste areas, borrow areas, and all other work areas within or without the project boundaries free from dust which would cause a hazard or nuisance to others. Approved temporary methods of stabilization consisting of sprinkling, chemical treatment, light bituminous treatment or similar methods will be permitted to control dust. Sprinkling, to be approved, must be repeated at such intervals as to keep all parts of the disturbed area at least damp at all times, and the Contractor must have sufficient competent equipment on the job to accomplish this if sprinkling is used.
Dust control shall be performed as the work proceeds and whenever a dust nuisance or hazard occurs. If any dust control is not done within twenty four (24) hours after written notice is given by the Engineer, the work may be done by the Owner and charged to the Contractor.
3.02 Methods of Construction
A. General: All existing structures, unpaved areas and paved areas disturbed or damaged during the work under this contract shall be restored or replaced to a condition at least equal to that existing prior to beginning work, or as otherwise specified. The methods of conducting this work shall, as a minimum, conform to the following Articles of the
Commonwealth of Pennsylvania Department of Transportation Specifications.
Cleaning and Restorations 02010-3
B. Grass Restorations:
See Section 802 �Topsoil Furnished and Placed�, and Section 804 "Seeding and Soil
Supplements", and Section 809 "Sodding".
C. Pavement Restorations:
Restoration type and thickness shall be as shown on the contract drawings or as otherwise directed.
D. Restorations of Curbs and Other Concrete Structures:
1. Curbs: Section 630 �Plain Cement Concrete Curb�.
2. Other concrete structures: Restore in accordance with applicable Articles of the
Standard Specifications.
E. All Other Restorations:
Restore in accordance with applicable Articles of the Standard Specifications, or as approved by the Owner or authorities having jurisdiction.
PART 4 � QUANTITY AND PAYMENT
4.01 Cleaning and Restorations
A. Quantity of Cleaning and Restorations will not be measured for this project, but the work shall be performed as necessary to restore all disturbed areas to at least the pre-existing condition.
B. Payment for Cleaning and Restorations will not be made for this project, but the cost shall be included in the various items of the proposal.
Excavation and Backfill 02227-1
SECTION 02227
EXCAVATION AND BACKFILL
PART 1 � GENERAL
1.01 Description
A. Excavation and backfill shall include the excavation and backfilling for demolition and or removal of existing below grade structures or utilities as indicated in the specifications for all materials of whatsoever nature encountered.
PART 2 � PRODUCTS
2.01 Materials
A. The Contractor shall, at his expense, make such test pits and borings along the line and site of the work to satisfy himself regarding the character of the various strata of sub-surface materials and the amount of ground water that may be encountered in the course of construction and shall bid accordingly and the unit lump sum prices bid for the various pipes or structures requiring excavation shall include the difficulties to be encountered in excavation. Excavation shall include all materials excavated, encountered, including but not limited to rock, earth, shale, quicksand, gravel, sand, cinders, broken stone, concrete, paving, filled material, etc., and all miscellaneous excavation not herein specified and classified.
B. Backfill material:
All on-site backfill materials shall be subject to the approval of the Engineer, and to the following requirements.
1. Shall be as indicated on the plans.
2. Free from deleterious substances, stumps, brush, weeds, roots, sod, rubbish, garbage and matter that may decay.
3. Backfill to a height of two (2) feet above the top of the pipes, culverts and other structures with material free from stones or rock fragments larger than two inches
(2") in greatest dimension, or as directed by Engineer.
4. Free of large rocks or lumps that, in the opinion of the Engineer, may create voids or prevent proper compaction.
C. Additional backfill material shall conform to Section 205 of the Pennsylvania
Department of Transportation Publication 408 for Borrow Excavation.
Excavation and Backfill 02227-2
PART 3 � EXECUTION
3.01 Method of Construction
A. General Excavation - Excavation of all materials of whatsoever nature encountered shall be made to the lines and grades shown on the drawings, or as may be necessary to fully carry out the intent of the drawings, and of these specifications, where no grades are indicated or described. Surfaces of excavations in earth, exposed in the finished work, both level and sloped, shall be excavated in planes four inches lower than the finished surfaces, measured perpendicularly to the plans, and shall be brought up to the finished surfaces with 4" top soil as specified elsewhere. Finished surfaces shall be true to line and grade and shall be dressed to even planes. Unless otherwise shown or stated on the drawings, all exposed slopes excavated in earth shall be one vertical to two horizontal. Slopes shall be kept true to line and grade during the progress of the work, and should any slope be scoured by storm water, or otherwise disturbed, or should any excavation be scoured or disturbed before final payment is made, the Contractor shall promptly restore the slope or excavation so scoured, gullied or otherwise disturbed to line and grade before final payment is made. No additional compensation will be paid the Contractor by reason of the encountering of any unusual or unexpected subsoil conditions.
B. Unauthorized Excavation - Special care shall be taken to prevent the movement of disturbances of earth under the foundation of the pipelines, manholes and other structures by providing adequate sheathing and bracing. Where the excavation is carried beyond or below the lines and grades given by the Engineer, or wherever the
Engineer shall determine that any material has been loosened or disturbed sufficiently to reduce its supporting power, remove all such loosened material and refill all such excavated space to grade with sand or loam thoroughly rammed, in such manner as may be directed by the Engineer in order to ensure the adequate support and stability of the pipeline and other structures. All excavation and any other operation shall be confined to the width of the right-of-ways available.
C. Materials Excavated - The materials excavated shall be laid compactly on the side of the trench or excavation and kept trimmed as to be of as little inconvenience as possible to the travelling public and to adjoining tenants. Where the streets are paved, the paving materials shall be kept separate from the other materials excavated. All streets shall be kept open for travel unless otherwise directed by the Engineer.
D. Removal of Excavated Materials - The Contractor shall not, without permission from the Engineer, remove from the line of the work any excavated materials which may be suitable for filling the trench or excavation until the same has been refilled. All excess excavation shall remain the property of the Owner and shall be disposed of at the location so designated by the Owner within the limits of the Municipality at the
Contractor's expense. However, if the Owner has no real need for this excess
Excavation and Backfill 02227-3 excavation, it shall be the Contractor's responsibility to dispose of said material at no expense to the Owner. Excess excavation shall be immediately removed.
E. Removal of Water - Maintain and provide at all times during construction ample means and device which shall promptly remove and properly dispose of all water or sewage entering the excavation and structures, until all work to be built therein is completed.
Dispose of the water from the trenches and excavation in a suitable manner, without damage to adjacent property and in no case unless by special permission of the
Engineer, shall water be allowed to run through the new pipes. Furnish all necessary machinery, power and labor to pump, bail or otherwise remove any water which may be found or shall accumulate in the trenches or other excavation and shall perform all work necessary to keep them clear of water while the work is under construction.
If the ground water and subsoil conditions along the line of the work are such that the
Contractor cannot successfully handle the ditch water and provide a stable, hard trench bottom by ordinary trench pumping and bailing, the Contractor shall furnish and provide the necessary equipment, power and labor to employ the well point method of trench dewatering without additional compensation. All pipe, joint and concrete must be installed under absolutely dry conditions.
F. Backfilling - The backfilling of the trench will be filled by using properly compacted, common earth material. If sufficient earth cannot be obtained to completely fill the trenches, small pieces of rock may be used under the condition that the space between the walls of the trench and the outside of the pipe to a height one foot above the top of the pipe, be filled with loose, fine earth, free from stone and hand-tamped, and placed in separate layers of not more than six inches in depth and each layer covered with from six to ten inches of earth.
Should excavated material be clay that will not consolidate by ordinary methods of backfilling, it shall be removed from site and replaced with granular material capable of quick compaction, the cost of said material to be included in the unit prices bid for the various pipe items in the Bid Form.
The space between the pipe and the bottom and sides of the trench shall be backfilled by hand and thoroughly tamped with a light hand tamper, as fast as placed. The pipe shall then be covered by hand to a depth of at least one foot above the top of pipe and at least one man shall be engaged in tamping for each man engaged in shoveling into the trench.
At this point on, in trenches and all other excavations, the material may be machine backfilled with backfill continuing in lifts not to exceed 12 inches. Each lift shall be thoroughly compacted using mechanical tampers or other methods as approved by the
Engineer. Contractor is hereby forewarned that he is responsible for any settlement of trench and excavation and the results thereof which may occur within one year following acceptance of the work.
During the backfill procedure, the soil compaction shall conform to not less than the following percentage of the maximum dry density:
Excavation and Backfill 02227-4
1. Structures & Building Areas - 95%
2. Lawns & Unpaved Areas - 90%
3. Pavement, driveways & walkway areas - 95%
G. Interference with Existing Structures or Utilities - In excavating or backfilling, care must be taken not to injure any gas, water, sewer, electric or telephone conduits or other pipes, conduits or structures. The locations will be made by the Engineer and in locating, he shall avoid interference with existing utilities as far as possible. Contractor shall, at his expense, sling, shore-up and secure and maintain a continuous flow in utilities and shall repair any damage done to them and shall keep them in repair until final acceptance of completed work, leaving them in as good a condition as when uncovered. Where it is either necessary or advisable to locate existing substructures in advance of or during actual construction of the work, the contractor shall cooperate with the Engineer and furnish without cost to the Owner such labor and equipment as may be required to locate any existing subsurface utilities or structures. No payment will be made for delays to contractors due to interference with utilities. The contractor shall, in advance of construction, obtain all available information as to location of existing underground utilities, service, etc. and will be held responsible for damage done by him to underground structures injured in construction.
H. Protection of Street Surfaces - The Contractor shall carefully plank, or otherwise protect all street surfaces, gutters, curbs, and sidewalks before moving any heavy equipment, machinery, tractor or truck over the same. He will be held fully responsible for all damage of every kind which may be incurred by the various surfaces and the Contractor shall repair or rebuild the surfaces as specified for the various surfaces elsewhere herein the specifications except that no payment will be made by the Owner to the Contractor for repair or rebuilding of the surfaces outside the trench areas.
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