4-Part III - Final.pdf

PART III - TECHNICAL SPECIFICATIONS

SECTION

ARTICLE

PAGE

01010

Mobilization and Close-Out

1 - 4

01020

Maintenance and Protection of Traffic During Construction

1 - 2

01040

Dust Control

01050

Unforeseen Project Water Pollution Control (Soil Erosion)

01060

Submittals

1 - 5

01070

Construction of Gravity Storm Sewers

1 - 8

01090

Color Audio - Video - Electrography

1 - 3

01100

Temporary Facilities and Controls

01110

Erosion and Sedimentation Control

01129

Cement Concrete

1 - 5

01130

Concrete Sidewalk

01131

Concrete Reinforcement

01132

Concrete Formwork

01133

Cast-in-Place Concrete

1 - 7

01134

Concrete Curing

01138

Detectable Warning Surface

01140

Concrete Curbs and ADA Ramps

01150

Stormwater Inlets

01157

Connection to Existing Structures

01170

Roadway Construction

01191

PA One Call

01195

Milling

01196

Trenching

01650

Delivery, Storage and Handling

02212

Shoring and Bracing

NOTE: All work under this Contract shall meet PennDOT, Form 408, Specifications, as last revised, in addition to the Specifications attached herein.

01000-110525 PART III - CONTENTS

SECTION 01010

MOBILIZATION AND CLOSE-OUT

1. GENERAL

This Work shall consist of assembling all materials, workmen, storage yards and any other materials or facilities as required under this Contract or in reference to any Local, State or Federal regulations pertaining to this Project.

This item shall include the cost of required Insurance, Payment and Performance Bonds, Warranty

Bonds and/or any related initial and final expenses associated with this Project.

This item includes the cost of PA OneCall compliance, temporary facilities and controls, necessary excavation/trenching permit, audio/video record, schedules, cleaning and final restoration, dust control, CPM schedule, plan of operation, record drawings, maintenance and protection of traffic, unforeseen project water pollution control, submittals, special requirements, erosion and sedimentation control, delivery, storage and handling and all other incidental items necessary to fully complete the project, as would be normally expected for a Project of this nature in the location of Work, not covered by unit or lump sum price.

2. MATERIALS

A. Materials under this part of this Specification are limited to those required for

Mobilization for each Contractor but not intended for incorporation in the completed Contracts.

3. EXECUTION

A. All equipment required to diligently start the respective Contractors construction

Work shall be on the site in satisfactory operating condition. The physical construction facilities, personnel and equipment shall be set up and operating at the required efficiency to diligently pursue the Work. No mobilization / demobilization costs will be paid to relocate material or equipment.

4. CLEANING-UP

A. In addition to the requirements of the General Conditions and to the requirements for special cleaning in the various other sections of the Specifications, the

Contractor, except as noted, shall perform final cleaning as follows:

1. Dust, and if necessary wash, all adjacent vehicles and/or structures.

B. Final cleaning shall be performed after the Work is completed and immediately before turning the Work over to the Owner.

C. Cleaning materials shall be free from harmful abrasive and shall be acceptable to the Manufacturers of the materials on which they are used.

01010-010226

MOBILIZATION AND CLOSE OUT

D. Each Contractor shall remove all his field offices, storage facilities and any other materials or items that were used by him during construction and not incorporated into the Project. Leave these temporary service areas in a clean condition and repair or replace any damaged areas ready to be turned over to the Owner.

5. FINAL RESTORATION

A. In addition to the requirements specified in the various Sections of these

Specifications each Contractor shall make final restoration of all areas disturbed by his temporary construction facilities such as, but not limited to, office and storage trailers.

B. In general, the Contractor shall repair all walks, roadways and any other areas damaged during construction, inside or outside the construction limits, to the satisfaction of the Engineer, at no cost to the Owner.

6. RECORD DRAWINGS

A. Contractor shall prepare one set of white prints for the purpose of recording as-built conditions. The As-Built “Record Drawings” shall be furnished, reviewed and approved prior to the release of the final payment.

B. These prints shall be marked "Record Drawings" and maintained at the Project Site.

Each Contractor shall record on the prints all deviations from the Contract

Drawings, at the time that such deviations are made.

1. All changes made in construction of the Project, as well as a complete record of the exact manner in which Work is installed, shall be recorded on the prints. Dimensions shall be included where necessary to accurately locate underground electrical feeds, piping, wyes and laterals and other items which shall be concealed in the finished Work and which may later be necessary to locate for service.

2. Record plans shall show all vertical and horizontal location of all under-ground facilities. Drawings shall indicate a profile showing the depths where rock was encountered and all other changes made to the Contract

Drawings. The Resident Project Representative shall provide the

Contractor with a sample Record Drawing at the time of construction.

C. A complete file of accepted field sketches, diagrams, and other changes as may become necessary during the progress of the Work shall also be maintained and attached to the set of marked-up prints.

D. At completion of the Work, the respective Contractor shall provide, for the information of the Engineer, each sheet of marked prints and all accepted field sketches and diagrams.

E. Before Final Application for Payment is processed, deliver “Record Drawings” in a clean and neat condition to the Engineer.

7. MAINTENANCE AND OPERATING INSTRUCTIONS

A. Prior to Final Application for Payment is processed, each Contractor or

Subcontractor shall provide final (up-dated) maintenance information for all material and equipment provided under the Contract. These instructions shall set forth all of the information necessary for the Owner to perform such maintenance and servicing as would ordinarily be done by the Owner.

B. Information shall be given in simple, non-technical language with sufficient diagrams and explanation to be readily understandable by the average layman.

Possible hazards shall be particularly pointed out with instructions cautioning against mistakes that might result in damage to materials or facility or in danger to personnel.

C. This information shall be assembled and bound in a hard cover brochure(s) or book(s). Brochure shall contain:

1. Maintenance instructions.

2. Manufacturer's literature marked to key with item numbers or code on Contract

Drawings, giving Manufacturer's material or equipment designation and list for replacement parts.

3. Name, address, and telephone number of installing Contractor or Subcontractor.

D. Submit manuals and operating instructions for all materials and facilities to the

Engineer in triplicate.

8. INSPECTION FEES

No Owner’s Representative inspection fees are to be paid by the Contractor.

9. INITIAL PAYMENT

A. Fifty percent (50%) of the price bid for Mobilization and Close-Out shall be payable to the respective Contractor whenever five percent (5%) of the Work of the Contract is completed. For the purposes of this item five percent (5%) of the Work shall be considered completed when the total of payments earned, exclusive of the amount bid for this item, as shown on the monthly certificates of the approximate quantities of Work done, prepared in conformance with the General Conditions shall exceed five percent (5%) of the total price bid for this Contract.

10. FINAL PAYMENT

A. The final fifty percent (50%) of the price Bid for Mobilization and Close-Out shall be payable to the respective Contractor when the following Work has been performed:

1. Completed all of the Work.

2. Clean-up and all final restoration of all disturbed areas related to the Contract.

3. Delivered all required documents enumerated in the Specifications including,

a. Required warranties and guarantees

b. Special bonds

c. Certificates from Manufacturers and Suppliers

d. Certificates from regulatory agencies and/or authorities

e. Maintenance and equipment instructions

4. Delivered, properly executed, the following:

a. Contractor's Affidavit

b. Statement of Surety Company (with Power of Attorney and

Statement of Surety's Financial Conditions)

c. Two Year Maintenance Bond (s) (with Power of Attorney and

Statement of Surety's Financial Conditions)

d. Contractor's Release

11. INSPECTOR'S FIELD OFFICE AND INSPECTION FACILITIES

A. No inspector's field office shall be required for this Project.

B. The Work shall, at all times, be made available for inspection by the Engineer, Resident Project Representative, Owner and all agencies having jurisdiction over the Work.

MOBILIZATION AND CLOSEOUT

SECTION 01020

MAINTENANCE AND PROTECTION

OF TRAFFIC DURING CONSTRUCTION

This Work is for the maintenance and protection of pedestrian and vehicular traffic adjacent to and within the construction area of all Work areas on this Project and for all costs associated with detours and maintaining detours, including permits from the respective review agencies and for all flag persons. Traffic shall mean vehicular and pedestrian travel within or adjacent to the Project area.

2. MATERIAL

Furnish material and traffic control devices necessary for the maintenance and protection of traffic, and conforming to the Traffic Control Plan; 67 PA Code, Chapter 211 and 67 PA Code, Chapter

203; and, if required as follows:

- Temporary Concrete Barrier - Section 627.2

- Reset Temporary Concrete Barrier - Section 628.2

- Temporary Signing and Detour Signing - Section 1103

Storage of materials and equipment is prohibited on the pavement and shoulder (30 ft. from edge of pavement.)

3. EXECUTION

A. General:

References and comply with the requirements of 67 PA Code, Chapter 203. Install and maintain the traffic control devices on a Traffic Control Plan or an accepted alternate plan, approved by the Engineer, submitted at the preconstruction conference. The Traffic Control Plan may be revised by the Engineer, in writing.

Schedule construction operations to permit movement of traffic, during the various phases of construction, with minimum interference. If traffic interruptions become too frequent, cease operations in the area concerned, as directed. Take satisfactory remedial action to correct the situation before continuing operations.

Traffic control devices shall include painted lines and markings, removal of existing lines and markings and restoration of lines and markings at the end of the construction Work.

01020-010226

B. Accommodation of Traffic:

For indicated detours, furnish, erect, maintain, and remove the detour signs, unless otherwise specified. Also, temporarily cover, revise, or remove existing permanent guide signs, in the vicinity of the construction site and in accordance with the detour signs.

Erect, maintain, and remove the detour signs and the modification of directional signs, as indicated, and as required for construction conditions. Restore original signs to their original state upon removal of the detour. Provide adequate flag persons, watch persons, and other personnel to adequately protect the traveling public, workers, inspectors, equipment, both public and private, from accident, injury, or damage at all times.

Open any substantially completed section of roadway for the use and convenience of traffic, as directed.

Do not start Work until the traffic control plan Schedule and operation methods have been reviewed and accepted by the Engineer.

4. MEASUREMENT AND PAYMENT

Seventy-five percent (75%) of the price bid for traffic control shall be payable to the respective

Contractor prorated over the Contract time with twenty-five percent (25%) of the price bid held until substantial completion of the Contract. All traffic control expenses shall be at the lump sum bid price shown on the Bid Form, complete in place in accordance with the Contract Documents and good construction practices, including all materials, operation, workmanship and appurtenances for a complete job and shall NOT be paid separately under this Contract.

01020-010226

SECTION 01040

DUST CONTROL

Maintain Dust Control necessary for the duration of the Project to avoid unstabilized areas.

Submit methods of Dust Control and plan of operation at the preconstruction conference for review and approval by the Engineer.

Methods of Dust Control shall include use of water, calcium chloride in all trenches, approved

Dust Control chemicals, vacuum sweeping and temporary bituminous paving and barricading

Work, as required. No oil is allowed for dust control nor is broom sweeping allowed.

Do not start Work until the Dust Control Plan, Schedule and operation methods have been reviewed and accepted.

Adequate water and/or vacuum shall be used during all cutting operations to prevent airborne dust.

The Engineer shall have the authority to order Dust Control Work to be completed by others if the

Contractor fails to correct inadequate Dust Control within 24 hours of notice and deductions from the Contractors payment shall be made to pay for dust control.

All Dust Control expense shall be included in the Mobilization/Demobilization lump sum bid price shown on the Bid Form, complete in place in accordance with the Contract Documents and good construction practice, including all materials, operation, workmanship and appurtenances for a complete job and shall NOT be paid separately under this Contract.

01040-010226

DUST CONTROL

SECTION 01050

UNFORESEEN PROJECT WATER POLLUTION CONTROL

(SOIL EROSION)

This Work is construction of temporary control measures, as ordered during the Contract life, to control water pollution and soil erosion meeting the requirements of PennDOT, Publication 408

Specifications, Section 845, as last revised and Northumberland County Conservation District.

When and as directed during construction, provide temporary pollution and erosion control measures to prevent or abate unforeseen conditions. These measures are separate from permanent erosion control features. All storm water inlets and installed piping shall be protected with erosion and sediment control devices to prevent dirt and debris from entering the inlets and piping.

During the preconstruction conference or prior to the start of construction, submit an Erosion

Control Plan outlining the Schedules for accomplishing temporary and permanent erosion and water pollution control. Do not start Work until the Erosion Control Plan, Schedules, and operation methods have been reviewed and accepted.

This item shall be included in the Mobilization/Demobilization lump sum bid price shown on the

Bid Form, complete in place, in accordance with the Contract Documents and good construction practice, including all materials, operation, workmanship and appurtenances for a complete job and shall NOT be paid separately under this Contract.

01050-010226

UNFORESEEN PROJECT WATER POLLUTION CONTROL

SECTION 01060

SUBMITTALS

The Contractor shall be responsible for preparing a CPM Schedule, Cash Flow Projection

Schedule, Plan of Operation and other submittals outlined in the Contract Documents for the entire

Project and shall include all Subcontract Schedules for the Work.

Each Contractor shall process the Shop Drawings required by his Contract to the Engineer and he shall be responsible for their timely submission in accordance with the Shop Drawing Schedule which is included in the overall progress or Work Schedule as described in item 3 of this Section.

Any proposed deviations/substitutions from that specified shall be clearly noted on the cover letter transmitting the Shop Drawing. Failure to note deviations/substitutions shall be cause for rejection of equipment, materials, etc., after installation.

All submissions shall be marked with the Specification section containing the item submitted for review.

Revised Shop Drawings submitted for review shall be marked "Resubmission".

"Or Equal" items for all equipment and materials shall be considered for approval.

2. SUBMITTAL PROCEDURES

All submittals shall be delivered to the Engineer for approval within 10 days of Notice to Proceed.

The Engineer shall screen the submittals to insure that they have been properly certified and identified by each Contractor. If they are submitted properly, the items shall be processed for review, acceptance and/or resubmission.

The processed submittals shall be returned to the Contractor within 20 days of receipt by the

Engineer.

3. SCHEDULE

The General Contractor shall prepare a CPM Schedule for the entire Project, showing the order in which each Contractor proposes to carry on his Work and salient features, including submission of Shop Drawings and samples and procurement of materials, to meet date of completion. The other Contractors shall be consulted in the preparation of this Schedule and shall signify their approval of the finished Schedule by their signature.

Each activity in the progress or Work Schedule shall be identified and a time for the performance of such activity indicated. Each activity shall be preceded by all Work that must be accomplished prior to that activity. All abbreviation, codes and/or symbols used shall be described in the

Schedule.

01060-010226

4. SUBMISSION

Submit four (4) copies of the CPM Schedule to the Engineer for review within fifteen (15) days after award of Contract. Weather related days shall be included in the CPM Schedule. Update and resubmit CPM Schedule monthly thereafter until completion of the Work. Updated CPM Schedule shall have completed activities removed or indicated as such. Whenever modifications are made to the Contract which add or delete activities and/or revise time of completion, CPM Schedule shall be revised and resubmitted to the Engineer within ten (10) days after such modification is authorized.

In the event that the Work is behind the CPM Schedule, the CPM Schedule shall be revised, through the use of overtime Work or by other means, to insure that the Work is completed within the Contract time. Under these circumstances, overtime Work shall be performed at no additional cost to the Owner.

5. SHOP DRAWINGS AND MANUALS

Shop Drawings are defined as drawings, diagrams, illustrations, Schedules, performance chart, brochures and other data prepared by each Contractor which illustrate how specific portions of the

Work shall be fabricated and/or installed.

Shop Drawings are not part of the Contract Documents, but are a supplementary means of communications to assist in the understanding of what each Contractor proposes to provide and to establish that whatever he intends to install either does or does not conform to the drawing and

Specifications.

In the instance of a request for a substituted item, each Contractor shall verify that it shall fit into the space allocated to the originally required item giving due regard to all other trade requirements.

Where modifications to the Contract Documents are proposed, the Contractor must clearly indicate such deviation in writing in his transmittal letter. If the modification and/or substitutions are agreed to by the Engineer, the Contract Documents shall be appropriately modified. However when additional Work is required, the Contractor is advised that he must pay the Engineer for redesign to accommodate that revised substitution as well as pay other Contractor’s for extra Work required by them for the change. No increase in the Owner's construction cost shall be allowed.

6. CATALOG SHEETS

For standard manufactured items considered by the Engineer as not requiring special Shop

Drawings, each Contractor shall submit six (6) copies of Manufacturer's catalog sheets showing illustrated cuts of the items to be furnished, all details, sizes, dimensions, performance characteristics capacities, wiring and control diagrams and all other pertinent information.

The Engineer shall retain four (4) copies and return two (2) copies to the Contractor submitting the catalog sheets.

7. SHOP DRAWINGS

Each Contractor shall submit for review six (6) white prints of shop and working drawings of materials fabricated and/or supplied especially for his Contract, and of equipment and materials for which such drawings are specifically requested.

Prior to submitting drawings to the Engineer, the respective Contractor shall check thoroughly all such drawing to satisfy himself that the subject matter conforms to the plans and Specifications in all respects. Drawings which are correct shall be marked with the date, checker's name and certification of the Contractor's approval, and then shall be submitted to the Resident Project

Representative. Any Shop Drawings submitted without the respective Contractor's certification shall be returned without review.

The Engineer shall retain four (4) copies and return two (2) copies to the respective Contractor.

Shop Drawings shall show the principal dimensions, weight, structural and operating features, performance characteristics and wiring diagrams, space required, clearances, type and/or brand of finish or drawing. When it is customary to do so, when the dimensions are of particular importance or when so specified, the drawings shall be certified by the Manufacturer or fabricator as correct for this Contract.

When so specified or if considered by the Engineer to be acceptable, Manufacturer's

Specifications, catalog data, descriptive matter, illustrations, etc., may be submitted for review in place of shop and working drawings. In such case the requirements shall be specified for shop and working drawings, insofar as applicable.

Each Contractor shall be responsible for the prompt submission of all shop and working drawings in accordance with the Shop Drawing Schedule so that there shall be no delay to the Work due to the absence of such drawings.

No material shall be purchased or fabricated especially for this Contract until the required shop and working drawings have been submitted and reviewed as conforming to the Contract requirements.

All materials and Work involved in the construction shall then be as represented by said drawings.

The Engineer's review of shop and working drawings shall follow a general check made to ascertain conformance with the design concept and functional result of the Project and compliance with the information given in the Contract Documents. Each Contractor is responsible for details and accuracy, for conforming and correlating all quantities and dimensions at the job site; for information that pertains solely to the fabrication processes or to techniques of construction; and for coordination of the Work of all trades.

No Work shall be started or materials and equipment ordered until submittals are approved.

8. MANUALS

Each Contractor shall be responsible for initially submitting to the Engineer two (2) copies of all requested maintenance manuals with the Shop Drawing submittals. Six (6) complete sets of instructions, technical bulletins and other printed matter shall be furnished and delivered to the

9. FIELD DISTRIBUTION

Each Contractor shall be responsible for the required number of processed drawings or catalog cuts for field distribution to all necessary Contractors.

Each Contractor shall have the overall responsibility for coordinating the necessary information to properly coordinate the Work.

10. SUBMISSION OF SAMPLES

Unless otherwise specified, each Contractor shall provide samples in duplicate and identify each sample by an appropriate tag or label listing the name of the Project, the Owner, the Engineer and the Contractor and/or Subcontractor as well as the exact identification of the sample. Tag or label shall be large enough to provide a blank space for review stamps.

Samples of items submitted for destructive tests or for use in testing mixtures with other materials shall not be returned. Review of these items shall be given by letter.

When reviewed, one sample of each item, not submitted for destruction, shall be returned to the respective Contractor and shall be kept and maintained in good condition in the submitting

Contractor's office at the Project site for later use in comparison with material actually delivered for the Work. When samples of large fabricated items or of costly items are required, reviewed samples may be installed in the Work if the exact location of such samples is recorded on the

Engineer's Record Drawings.

11. CERTIFICATIONS AND TESTS

Two (2) copies of certifications and reports of tests when required under the various sections of the Specifications shall be submitted to the Engineer.

12. AS-BUILT PLANS

Contractor must submit one redlined As-Built Plan from the field within 10 days of Substantial

Completion. Final Completion will not be approved until As Built Plans are submitted and approved by the Engineer.

13. MEASUREMENT AND PAYMENT

Shop Drawings, submittals, samples, certifications and tests, CPM Schedule, and Plan of

Operation shall be included in the Mobilization/Demobilization lump sum bid price shown on the

Bid Form, complete in place, in accordance with the Contract Documents and good construction practice, including all materials, operation, workmanship and appurtenances for a complete job and shall NOT be paid separately under this Contract.

SECTION 01072

CONSTRUCTION OF GRAVITY STORM SEWER

The Contractor shall furnish and install all pipe, inlets, clean outs and appurtenances as specified herein. All Work shall be in accordance with PennDOT, Form 408 Specifications, as last revised, in addition to the Specifications herein.

2. PIPE

A. Pipe shall meet or exceed the current Specifications of AASHTO M294 Type S Corrugated exterior HDPE Pipe with smooth interior, in diameter per the plans, or approved equal.

B. Pipe shall meet or exceed the current Specifications of ASTM D 3350 cell classification 445574

C/E, DR 17.

3. JOINTS

A. External snap couplers, or approved equal.

4. INSPECTION OF PIPE

Prior to being lowered into the trench, each pipe shall be carefully inspected and those not meeting the specified requirements in the opinion of the Engineer shall be either destroyed or immediately removed from the Site of the Work.

5. EXCAVATION

A. Trenching:

Trenches shall be dug to the depth that the pipe can be constructed to proper grade, due allowances being made for stone bedding or concrete cradle, where applicable. In earth excavation in sections where stone bedding or concrete cradle is excluded, the bottom of the trench shall be shaped to conform as nearly as possible to the outside of the pipe.

Where the bottom of the trench shall, by mistake of the Contractor, have been excavated to a greater depth than above specified, it shall be refilled to the proper grade with crushed stone, said crushed stone to be furnished and placed by the Contractor, who shall receive no additional compensation whatever therefore. Refilling with earth to bring the bottom of the trench to the proper grade shall not be permitted.

Banks of trenches shall be kept as nearly vertical as possible and the trenches shall be excavated true to line so that a clear space of (8") eight inches in width is provided on each side of the barrel of the pipe to a height not less than the top of the pipe.

01072-010226 CONSTRUCTION OF GRAVITY

STORM SEWER

If sheeting is required at the level of the pipe, the dimensions in the foregoing sentence shall be applicable to the inside face of the sheeting.

The dewatering of the trench shall be not so affected that no water can run through newly laid pipe, nor accumulate in the trench during pipe laying and backfilling. All concrete Work shall be set up hard before any backfilling Work is started. All water removed from the trench shall be disposed of in such a manner that no damage shall be done to private property and no hazard to the traveling public shall be created. Damming or ponding of water shall only be permitted where stream crossings are necessary, and then only to an extent which the Engineer shall consider necessary. No extra payment shall be allowed for pumping or other methods of trench dewatering.

B. Excavated Materials:

Excavated materials shall be so placed as not to unreasonably constitute a traffic hazard, interfere with travel on driveways, interfere with the functions of storm drainage facilities or interfere with access to fire hydrants. Excavated materials removed from trenches in municipal streets, sidewalks and sidewalk areas shall be piled or otherwise disposed of so that no material shall obstruct sidewalks or encroach on private property.

Excavated material removed from trenches in highways shall not be placed or piled on the traveled portion of the highway. Excavated material removed from trenches in right-of-ways shall be kept within the right-of-way limits and not placed on private property.

All surplus excavation shall be removed from the Site of the Work by the Contractor, but none shall be deposited on private property until written consent of the property Owner or

Owners thereof has been given.

All costs of disposal of surplus materials shall be included in prices Bid on pipework or rock excavation. Upon refusal or failure of Contractor to comply with any of the foregoing provisions, the Engineer may have the Work done, and the costs thereof shall be charged as money paid to the Contractor.

01072-010226

CONSTRUCTION OF GRAVITY

C. Underground Structures:

Underground structures of all types shall be protected by the Contractor who shall use all necessary shoring, bracing, or appliances for the protection of same. Care must be taken not to injure in any way, drain pipes, storm water lines, sewer lines, water mains and services, gas mains and services, electrical conduits, telephone conduits, or other structures encountered in the Work. In case of accident to any such structures, the Contractor shall notify the utility Owner so that proper steps may be taken to immediately repair any and all damages done. When the Owners do not wish to make the repairs themselves, all damages shall be repaired by the Contractor, or, if not promptly done by him, the Engineer may have the repairs made at the expense of the Contractor.

All utility services shall be supported by suitable means so that the services shall not fail when tamping and settling occurs. No separate item is provided for service supports and the

Contractor must cover same in the unit price Bid for each Bid item.

D. Length of Open Trench:

The Engineer shall have the right to limit the amount of trench opened in advance of pipe laying and the amount of pipe laid in advance of backfilling, but in no case shall more than

100 feet of trench be opened at any one place in advance of the completed sewer. Trenches shall always be completed at least 30 feet in advance of pipe laying.

6. SHORING

Trenches shall, at all times, be properly and adequately shored to prevent accidents, caving of the sides of the trench, breaking of the ground outside of the lines of the trenches proper or damage to buildings or other structures.

Shoring and bracing of trenches and excavations shall be accomplished in such a manner as is required by law and current regulations of the Pennsylvania Department of Labor and Industry, and

OSHA, the enforcement of which regulation shall be accomplished by Representatives of these

Departments, as is required by law.

Prior to starting excavation, the Contractor shall file, in duplicated, notice of intent to start Work with the Department of Labor and Industry on forms provided by that Department.

01072-010226 CONSTRUCTION OF GRAVITY

7. PIPE LAYING

All pipes shall be laid and maintained to the required lines and grades or on the grade of the existing pipeline.

Following the trench preparation, pipe laying shall proceed upgrade with pipe laid carefully, end to end. Every length or section of pipe shall be carefully inspected before laying and any pipe containing cracks or other defects shall not be used. Extreme care must be exercised to prevent breakage when the pipe is handled. The pipes shall be lowered so as to avoid unnecessary handling in the trench. Each section of pipe shall be firmly held in position so that its invert forms a continuous grade with the invert of the previously placed pipe. The interior of all pipe, the interior of the bell and the outside of the spigot shall be thoroughly cleaned of all foreign matter before being lowered into the trench, and shall be kept clean during laying operations by means of plugs or other approved devices.

Under no condition shall pipe be laid in water or on subgrade containing frost and no pipe shall be laid when trench conditions are unsuitable for such Work. In all cases, water shall be kept out of the trench until concrete cradles have hardened.

If the pipe is damaged from any cause, or becomes either partly or completely filled with dirt, stones, sand or other debris, the Contractor shall make all necessary repairs, and remove all such material to the satisfaction of the Engineer, at the Contractor's expense. Upon refusal or failure to do so, the Engineer shall order the Work accomplished by others and the cost thereof shall be charged as money paid to the Contractor.

8. INLETS AND PIPING

Connect proposed inlets to existing storm pipe and install new HDPE storm pipe and inlets.

9. BEDDING / BACKFILLING

Bedding and backfilling shall be done as promptly as is consistent with non-injury to the inlets and pipe and appurtenances but not prior to authorization by the Engineer.

General:

Backfilling shall not be done in freezing weather except by permission of Engineer, and it shall not be made with frozen material. No fill shall be made where the material already in the trench is frozen.

Backfill/trench restoration per plan sheet 5 of 5, temporary pavement restoration and final pavement restoration details.

No additional compensation shall be made for aggregate backfill required for pipe bedding, or due to excavation made beyond the limits specified, or where used as special bedding at the discretion of Contractor.

When the type of backfill material is not indicated on the Contract Drawings or specified, Contractor may backfill with excavated material, provided that such material conforms to materials as classified previously and consists of loam, clay, sand gravel, or other materials which, in the opinion of Engineer, are suitable for backfilling. Where excavated material is to be used for backfill and there is a deficiency due to a rejection of part thereof, Contractor shall furnish the required amount of approved material at no additional cost.

Use of water during backfill operations for jetting or puddling shall not be permitted.

Do not backfill trenches until tests and inspections have been made and backfilling authorized by Engineer. Use care in backfilling to avoid damage or displacements or pipe conduits, utilities or structures being backfilled.

Cold Weather Protection: Protect excavation bottoms against freezing when atmospheric temperature is less than 35o F.

Do not backfill behind abutment walls, backwalls or retaining walls until 10 days after placing the concrete, and then only if the concrete has attained its minimum specified strength.

Do not perform excavating, backfilling or compacting in weather conditions or the condition of the materials are such, that in the opinion of Engineer, the Work cannot be completed in accordance with the Specifications.

Do not use as backfill frozen materials or wet materials containing moisture in excess of the amount necessary for satisfactory compaction.

Prior to use, moisten dry backfill material not having sufficient moisture to obtain satisfactory placement or compaction.

Prevent spread of dust during performance of Work by thoroughly moistening excavation areas by sprinkling and other methods approved by Engineer.

Backfill Methods:

All backfill to be in accordance with plan sheet 5 of 5, temporary pavement restoration and final pavement restoration details.

A. Bedding Under and Around the Pipe and Backfilling to a Height of One Foot above the

Pipe:

Backfill material shall be AASHTO No. 57 and shall be hand placed, in layers not exceeding six (6") inches in depth. The backfill material shall be brought up evenly on both sides of the pipe and shall be thoroughly consolidated, by hand tamping, simultaneously on both sides of the pipe.

B. Backfilling from One Foot above the Top of Pipe to Five Feet above the Top of

Pipe:

Backfill material shall be earth, gravel or as shown on the typical details which contain stones not more than six (6") inches in largest dimension, but not in proportion exceeding 1 part stone and 3 parts earth, sand or gravel. No clay material or wet material shall be used. The backfill material may be hand or machine placed, in layers not exceeding twelve (12") inches in depth. The backfill material shall be brought up evenly on both sides of the pipe and shall be thoroughly consolidated, by mechanically tamping.

C. Backfilling above a Level Five Feet above the Top of Pipe:

Backfill materials shall be as described in "B" above. Backfilling shall be either as described in "B" above, or by filling machine in one operation and compacting by heavy duty tamping machines of the paving breaker type in fifteen (15") inch lifts.

Should in the opinion of the Engineer, the material excavated from the trench be unsuitable for backfilling, the Contractor shall, at his own expense, secure suitable material from other sources.

As the trenches are backfilled and the Work completed, the Contractor shall, at his own cost and expense, remove and dispose of all surplus earth, rock, debris or other material from the Work.

In case the Contractor shall fail to do so, or make satisfactory progress in doing so, within 24 hours after the receipt of a written notice from the Engineer, the Owner may remove such surplus material and clear the roadways, sidewalks and private rights-of-way, and the cost of said work shall be charged to the Contractor and deducted from any monies due to or to become due him or her under the Contract.

D. All compaction shall meet one hundred (100%) percent maximum dry-weight density of the material used.

10. TEMPORARY REPAVING

Within 24 hours after the backfill has been placed and thoroughly consolidated as specified above, the Contractor shall place as temporary repaving over the pipe trenches, seven (7") inches of clean, dry, crushed No. 2A stone, screened and rolled until it is uniformly to an elevation two (2") inches above the adjoining undisturbed street paving surface. It shall be maintained in good condition, adequate for the usual traffic, until such time as the trenches are permanently repaved as set forth in the other sections of these Specifications. The Contractor shall pay any claim for damages arising from his neglect to maintain the temporary surface.

PennDOT has new bituminous tack coat specifications known as TACK. A non-tracking tack called NTT/CNTT is also available. The emulsifier used when producing these materials can have a positive cationic charge or a negative, anionic charge, depending on the supplier who made it.

When purchasing tack coat material from different suppliers, a certification must be given to make sure that materials with opposite charges are not inadvertently combined. TACK has a minimum asphalt residue content requirement of 57 percent.

In addition, a non-tracking tack (NTT) material, which has an asphalt residue content of at least 50 percent, can be used. The increased asphalt residue content enhances its bonding capability. The new specifications for the residue rates are based on surface types as well as condition.

Publication 408, Section 460.3 Table B

Surface Type

Uniform Asphalt Residue Rate (RR)

(gallons per square yard)

New Bituminous Paving 0.03 to 0.05

Existing Bituminous Paving 0.04 to 0.07

Milled Surface (Bituminous & PCC) 0.04 to 0.08

Portland Cement Concrete 0.04 to 0.07

A 100-foot test strip shall be constructed at the start of the paving project to verify the agreed-upon application rate. The application rate to achieve a uniform asphalt residual rate can be determined using the following equation:

AR = (RR/ARC)

AR is the application rate in gallons per square yard; the amount of asphalt sprayed by the distributor truck.

RR is the residual rate in gallons per square yard; the amount of emulsified asphalt remaining on the surface after it has broken and set.

ARC is the asphalt residue content (% divided by 100); the percentage amount of asphalt in the emulsified asphalt. It is provided on a bill of lading and expressed as a decimal.

All materials for temporary surface shall meet Pennsylvania Department of Transportation Form

408 Specifications.

11. RESTORATION AND CLEANUP

All final grading and restoration shall be completed in accordance with the appropriate section(s) of these Contract Documents.

Prior to final restoration, maintain all areas of the Work including, but not limited to, paved surfaces, public and private roadways, lawn and meadow areas, in a safe, desirable and convenient condition. Paved areas and all public and private roadways shall be swept and flushed after backfilling, and re-cleaned as dust, mud stones, and debris caused by the Work, or related to the

Work, again accumulates. Failure on Contractor to perform this Work shall be cause for Engineer to order the Work by others, with the resulting cost subtracted from Contractor’s next monthly payment request. Any such costs shall be deemed a reduction in the total amount due Contractor under the Contract and no subsequent reimbursement shall be made to Contractor by Owner for these costs.

Remove all dirt, rubbish and excess earth from the excavation and dispose of all excess materials in a manner and place acceptable to all governing agencies at an approved PA DEP disposal site.

Leave construction site clean at the end of each working day to the satisfaction of Engineer.

Repair or Correction of Unsatisfactory Conditions: All unsatisfactory conditions resulting from the

Work shall be corrected.

Any subnormal or dangerous condition caused by the Work, on any surface, shall be repaired or corrected within two hours of observance or notification of its existence. If repairs or corrections are not made within this period, Owner shall cause to have the Work completed by others with the resulting cost subtracted from Contractor’s next monthly payment request. Any such costs shall be deemed a reduction in the total amount due Contractor under the Contract and no subsequent reimbursement shall be made to Contractor by Owner for these costs.

There shall be no additional payment made for maintenance Work.

11. MEASUREMENT AND PAYMENT

Payment for this item shall be included in each item of Work required, as shown on the Bid Form, complete in place in accordance with the Contract Documents and good construction practice, including all materials, operation, workmanship and appurtenances for a complete job and shall

NOT be paid separately under this Contract.

SECTION 01090

COLOR AUDIO-VIDEO ELECTROGRAPHY

A. Scope:

1. Description of Work

Provide all labor, materials and equipment to furnish color audio-video electrography including still pictures for the entire Project area including adjacent dwellings, sidewalks, curbing, fences, walls, existing inlets, manholes and all structured within 20 of the street right-of-way prior to the start of any construction Work.

Provide the Owner with two (2) copies of acceptable audio-video tapes of the total survey.

Work shall consist of, but not be limited to, the following:

a. At no time shall the Contractor be allowed to use any electrical circuits within a building structure in order to protect the electrical circuits from overloading.

b. All videotaping shall be done during regular business hours, unless otherwise specified by the Engineer.

c. The Contractor must enter and leave the Owner’s property in a professional and orderly workmanship-like manner.

2. Field Checks

The Contractor and the Engineer shall review the days taping and, if tapes are judged unsatisfactory, the subject Project area shall be re-taped.

3. Qualifications

a. Owner's Requirements:

The Owner may make such investigation as deemed necessary to determine the ability of the Contractor to perform the Work, and the Contractor shall furnish to the Owner all such information and data for this purpose as the

Owner may request, or modify such justification as submitted by the

Contractor of his ability to perform this Work as specified.

The Contractor shall notify the Engineer seven (7) calendar days prior to beginning of taping.

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4. Submittals

The Contractor shall submit to the Engineer, prior to starting Work at his own expense, a sample 3/4 inch color video tape meeting the exact contract requirements. Videos may be taken with cell phones and E-mailed to the

Engineer or put on a thumb drive and delivered to the Engineer.

2. PRODUCTS

A. Equipment:

All equipment, accessories and materials to perform this service shall be furnished by the Contractor.

At the bottom of the video, periodic transparent alpha numeric information shall appear. This information shall consist of the name of the Project, name of the area covered, direction of travel, viewing side, etc.

B. Digital:

To preclude the possibility of tampering or editing in any manner, all video recordings must, by electronic means, display continuously and simultaneously generated transparent digital information to include the date and time of recording as well as the corresponding Engineering stationing numbers. The date information shall contain the month, day, and year, i.e., 06/15/2019, and shall be placed directly below the time information. The time information shall consist of hours, minutes and seconds separated by colons, i.e., 10:35:10. This transparent information shall appear on the extreme lower left-hand third of the screen.

3. REQUIREMENTS

A. Multi-Camera Requirements:

The audio-video tape shall consist of one (1) video and two (2) audio tracks, all of which must be recorded simultaneously. All tracks shall consist of original live recordings and thus shall not be copies of other audio or video recordings. Audio track 1 shall contain the narrative commentary of the electrographer recorded simultaneously with his fixed elevation video record of the zone of influence of construction. Audio track 2 shall contain the narrative commentary and evaluations of the ground level remote technician whose function shall be to provide a complete circumspection of any features not adequately visible to the electrographer and to describe in detail the extent of any unusual features encountered.

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In order to maintain viewer orientation, transition from fixed camera overview to remote camera picture shall be by means of an electronic dissolve.

B. Lighting Requirements:

The color audio-video tape recording of surface features of the Project area located within the area of coverage of construction specified by the Engineer shall have the following minimum lighting:

1. In order to produce the proper detail and perspective, a minimum of 25,000 watts or 3400 Kelvin temperature lighting shall be required to fill the shadow area caused by all objects.

AREA TYPICALLY CHARACTERIZED BY AVE RATE MAX

High Density Brunswick Street 30 ft/min.

The color audio-video tape recording of exterior surfaces of existing buildings and miscellaneous structures in the area of the Project as requested by the Engineer shall have the following tape coverage:

A. Taped coverage shall include all surface features located within the area of coverage of construction supported by appropriate audio description. Audio description shall be made simultaneously with video coverage. Building exterior coverage shall include, but not be limited to, all masonry features of the building such as walls, foundations or chimneys.

B. An electronic insert showing the exterior view of the Project being recorded shall be displayed in the upper right-hand corner of the television picture. This view shall be no larger than 20% of the picture area and must begin showing the address before the 360 degree pan. The electrographer shall pan and zoom in and out as to control sufficiently the clarity of objects being viewed and shall not exceed a rate of more than 2 inches per second on telephoto zoom.

C. All videotaping shall be done during regular business hours unless otherwise specified by the Engineer.

4. MEASUREMENT AND PAYMENT

Color Audio-Video Electrography shall be included in the Mobilization/Demobilization lump sum bid price on the Bid Form, complete in place, in accordance with the Contract Documents and good construction practices for a complete job, including all materials, operation, workmanship and appurtenances for a complete job and shall NOT be paid separately under this Contract.

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SECTION 01100

TEMPORARY FACILITIES AND CONTROLS

A. Scope:

The Contractor is referred to conditions and requirements given in various Sections of the

Specifications insofar as such documents affect the Work of this Section.

2. OCCUPYING PRIVATE LAND

Written consent from the proper parties shall be obtained by the Contractor prior to entering of/or occupying with men, tools, materials or equipment any land other than his property or that of the

Owner for any purpose related to his performance of the Work on this Contract.

3. PROTECTION OF EXISTING UTILITIES

The Contractor shall conduct his operations and take all special precautions necessary to protect equipment, utility lines, roadways and subsurface, submerged and overhead facilities which are to remain in place and undisturbed by his operations under this Contract. The Contractor shall immediately notify the Owner of the facilities or areas which are disturbed, damaged or injured as a result of the Contractor's operations, and determine the proper method of replacing or repairing the affected facilities at least to the conditions which existed prior to the Contractor's operations.

The Contractor…