Dead_Horse_TechSpecs_8-7-18_mjm.pdf

Table of Contents - i 8/8/2018

DEAD HORSE DAM RECONSTRUCTION

TECHNICAL SPECIFICATIONS

TABLE OF CONTENTS

BID SCHEDULE

DIVISION 1 - GENERAL REQUIREMENTS

01010 Summary of Work 01050 Field Engineering 01060 Permits 01150 Measurement and Payment 01200 Project Meetings 01300 Submittals 01400 Quality Control/Quality Assurance 01570 Traffic Control 01600 Material and Equipment 01700 Contract Closeout

DIVISION 2 - SITEWORK

02050 Demolition 02110 Clearing 02275 Riprap 02300 Earth Dam 02370 Geosynthetics 02724 Outlet Works 02910 Restoration and Topsoiling

DIVISION 3 - CONCRETE

03300 Cast-In-Place Concrete

DIVISION 5 - METALS

05500 Metal Fabrications

APPENDICES

APPENDIX A – Test Pit Logs and Testing Summary

DRAWINGS – Bound Separately

GENERAL

REQUIREMENTS

01010-1

SECTION 01010 - SUMMARY OF WORK

PART 1 - GENERAL

1.01 WORK INCLUDED:

This project will repair Dead Horse Dam located in Valley County, Montana approximately 40 miles south and west of Glasgow, MT. Major items of work for at this dam include:

• Dewater reservoir and construction area.

• Excavate dam embankment for removal of the existing 27-inch diameter Corrugated Steel

Pipe (CSP) spillway riser pipe and outlet conduit.

• Construct concrete encased, precast reinforced concrete outlet conduit.

• Construct precast concrete spillway riser for a new principal spillway, along with installing a low-level inlet structure.

• Construct grouted riprap stilling basin.

• Reconstruct dam embankment at new outlet works including upstream riprap slope protection and internal chimney and blanket drain system.

• Maintain public access along TC Access Road throughout the project by constructing a temporary detour road.

• Place gravel road surfacing along the crest of the dam.

• Bid Alternate 1 includes excavating a portion of the downstream face of the embankment and placing compacted embankment at a 2.5:1 (H:V) slope.

• Reclaim all disturbed areas including staging areas and temporary roads. Reclamation consists of preparation of the soil for seeding but does not include seeding. Seeding will be completed by Others.

1.02 CONTRACTOR USE OF PREMISES:

Confine operations to the site of the proposed Work or within the right-of-way or construction easements provided and shown on the drawings. Construction camps and staging areas outside the construction area must be approved by the Contracting Officer (CO). Obtain advance approval from the CO of all staging areas, excavated soil stockpile and waste areas and camp areas.

It shall be understood the responsibility for protection and safekeeping of equipment and materials on or near the site will be entirely that of the CONTRACTOR and that no claim shall be made against the GOVERNMENT by reason of any act of an employee or trespasser whether GOVERNMENT has paid CONTRACTOR for equipment or materials in storage or not. It shall be further understood should any occasion arise necessitating access by the GOVERNMENT to the sites occupied by these stored materials and equipment, the CONTRACTOR owning or responsible for the stored materials or equipment shall immediately remove same. No materials or equipment may be placed upon the property of the GOVERNMENT until the CO has agreed to the location contemplated by the

01010-2

CONTRACTOR to be used for storage. CONTRACTOR is solely responsible for obtaining and shall pay all costs in connection with any additional work area, storage sites, access to the site, or temporary right-of-way, which may be required for proper completion of the Work.

1.03 PROTECTION OF EXISTING UTILITIES:

Utility service connections are generally shown on the drawings, but the CONTRACTOR is solely responsible for locating all existing underground installations, including service connections, in advance of excavating or trenching, by contacting 811 (in-state) or 1-800-424-5555 (outside of Montana) or the owners thereof and prospecting. The CONTRACTOR shall use his own information and shall not rely solely upon information shown on the drawings concerning existing underground installations. Repair all damage to existing utilities or property at CONTRACTOR's expense.

1.04 PROTECTION OF EXISTING STRUCTURES:

Where excavation will be required adjacent to existing structures, the CONTRACTOR is solely responsible to maintain the structural integrity of the existing structures. Take whatever means necessary to insure the existing structures are not damaged. Repair all damage to the existing structures at CONTRACTOR's expense. Repair any fences destroyed during construction to the satisfaction of the property owner. Unless otherwise noted on the Construction Drawings, restore all existing ditches disturbed by construction to their original size, line, and grade.

Structures located downstream of the dam shall also be protected during reservoir dewatering activities. Restore or repair to original condition roads, culverts, bridges, cattle guards and fences or any other structures damaged by the CONTRACTOR’s activities and access to the sites at no additional cost to the project.

1.05 FIELD CHECK OF EXISTING STRUCTURES:

Dimensions and elevations of existing structures and locations of existing fences, pipelines, conduits, cables, and equipment shown on the drawings were taken for the most part from available records and survey data and are not guaranteed for accuracy.

Check all dimensions and elevations of existing structures, pipelines, conduits, cables, equipment, or other existing items, both above and below ground, affected by or affecting the Work under this contract, prior to the start of construction or ordering materials and equipment affected thereby.

1.06 SITE ACCESS:

Determine the adequacy of all roads, culverts, cattle guards, and bridges used in moving or gaining access for equipment and materials to the construction site. Provide alternative methods of access, such as a temporary crossing for any equipment that exceeds the structural limits of existing facilities.

Improvements for road access including fill, culverts, and fencing to remain after project completion as approved by CO.

01010-3

1.07 LIVESTOCK:

The CONTRACTOR shall provide temporary fencing for excluding livestock from construction areas, excavations, trenches, etc.

CONTRACTOR shall be solely responsible for any livestock injuries or losses as a result of CONTRACTOR’s activities.

1.08 FIELD OFFICES AND SHEDS:

Provide field offices and storage sheds required for completion of the work. Locate these temporary structures in areas approved by the CO. All expenses for telephone, utilities, security and waste disposal are the responsibility of the CONTRACTOR. Provide the name and telephone number of a representative who may be contacted after hours in case of emergency.

1.09 REFERENCES:

References to documents, such as ASTM, shall be for the current printing.

1.10 ABBREVIATIONS:

AASHTO - American Association of State Highway and Transportation Officials ACI - American Concrete Institute ASTM - American Society for Testing and Materials AWWA – American Water Works Association CO - Contracting Officer OSHA - Occupational Safety and Health Act PVC - Polyvinyl Chloride RCP – Reinforced concrete pipe CMP – Corrugated Metal Pipe

PART 2 - PRODUCTS – NONE

PART 3 - EXECUTION – NONE

END OF SECTION 01010

01050-1

SECTION 01050 - FIELD ENGINEERING

GOVERNMENT has established primary control with control points adjacent to the Work as shown in the Contract Documents. GOVERNMENT will develop and provide initial surveys, initial grade stakes and benchmark elevations for batter boards. CONTRACTOR is responsible to perform measurements and maintain controls to complete the construction to the lines and grades shown on the Drawings. If the initial staking completed by the GOVERNMENT is destroyed in the construction process the CONTRACTOR is responsible for the cost of any re-staking that is required.

1.02 PRESERVATION OF REFERENCE POINTS:

Carefully preserve bench marks, reference points, lot corners, section corners, and stakes and, in case of destruction, the CONTRACTOR is responsible for the resetting of such points and responsible for any mistakes that may be caused by their loss or disturbance.

PART 3 - EXECUTION – NONE

END OF SECTION 01050

01060-1

SECTION 01060 – PERMITS

Prepare, maintain, and proceed in conformity with Storm Water Discharge Permit/Storm Water Pollution Prevention Plan as required by the Montana Department of Environmental Quality. Once the contractor prepares and submits the final permit to the Government, the Government will obtain this permit and pay all fees associated with the Storm Water Discharge Permit. During the construction of the reservoir the Contractor is responsible for all maintenance to the pollution prevention plan. When the Contractor has completed work on the project and has been issued the final payment, the Government will continue maintenance on the pollution prevention plan. When all criteria have been met, the Government will file the Notice of Termination for the permit.

Except as otherwise noted, identify, obtain, maintain, and proceed in conformity with any and all additional required permits necessary for completion of the Work.

Any costs associated with these Permits are included as part of the Contract Price as incidental costs.

1.02 SUBMITTALS:

The Contractor shall supply to the Government a draft Storm Water Discharge Permit within 10 days after issuance of the Notice to Proceed. The Government will have 10 days to review and provide comments back to the Contractor. The Contractor then has 10 additional days to submit the final Storm Water Discharge Permit to the Government. Work may proceed after the final Storm Water Discharge Permit has been returned to the Contractor with an acceptance letter from the Government.

The Contractor shall perform all compliance testing required by all permits. Submit results of compliance testing directly to the appropriate review agency. Provide copies of all results to the Government. Submit copies of any additional required permits to the Government when they are acquired.

PART 2 - PRODUCTS - NONE

PART 3 - EXECUTION - NONE

END OF SECTION 01060

01150-1

SECTION 01150 - MEASUREMENT AND PAYMENT

1.01 SCOPE:

The method of measurement and basis of payment is described in this section.

1.02 GENERAL:

A. Bid price for each item of the Contract covers all Work shown on the Drawings and required by the specifications and other Contract Documents.

B. All costs are included in the unit and lump-sum prices bid including all materials, equipment, supplies and appurtenances; all construction plant, equipment, and tools; and all labor and supervision necessary to fully complete the Work.

C. No item that is required by the Contract Documents, for the proper and successful completion of the Work, will be paid for outside of or in addition to the prices submitted in the Bid.

D. All work not specifically set forth as a pay item in the Bid Form is considered an incidental obligation of the CONTRACTOR, and all costs in connection therewith shall be included in the unit prices bid.

1.03 ESTIMATED QUANTITIES:

A. All quantities in the Price Schedule of the Bid Form or other Contract Documents, which are to be paid per field measurement, are approximate only, and are to be used only as:

1. A basis for estimating the probable cost of the Work, and

2. For the purpose of comparing Bids submitted for the Work.

B. Actual work performed, and materials furnished under the unit-price items for those items to be field measured may differ from the estimated quantities.

C. Basis of payment for work and materials will be the actual amount of work done and materials furnished to the pay lines defined in this section.

D. Payment will be paid at the unit price bid for listed items successfully completed according to Contract requirements.

01150-2

E. Lump-sum items and those based on neat-line plan dimensions are not field-measured.

They will be paid at neat-line or the lump-sum price bid for the items listed.

1.04 AUTHORITY:

A. Contracting Officer will perform all measurements and compute quantities for payment.

B. Contracting Officer will verify measurements and quantities provided by CONTRACTOR.

C. CONTRACTOR provides access to work areas for survey measurements, as required.

1.05 MEASURED QUANTITIES:

A. Measurement by Volume: Measured by cubic dimension using mean length, width, and height or thickness.

1. Measurement for payment of excavations upon or against which concrete or cementitious backfill is not to be placed will be limited to the lines and grades shown on the Drawings or to the most practical lines, grades, and dimensions established by the Contracting Officer, in writing. No measurement will be made of over excavations beyond design lines and grades.

2. Fill quantities will be computed using the average-end-area method or other computation method approved of by the Contracting Officer.

B. Measurement by Area: Measured by square dimension using mean length and width. Items that are measured by area will be measured parallel to the ground surface.

C. Linear Measurement: Measured by linear dimension at the item centerline or mean chord.

Items that are measured by the lineal foot will be measured parallel to the ground surface, unless otherwise specified.

D. Stipulated Sum/Price Items: Measured by weight, volume, area, or linear means, or combination, as appropriate, as completed items or units of the work.

E. Lump-Sum Items: Will not be measured for payment. Interim measurements may be made to monitor work progress.

1.06 SCHEDULE OF VALUES:

A. A schedule of values or “allocation of contract price” is required for all lump sum items.

B. The schedule of values is used only to help assess the intermediate value of work completed for the purpose of making progress payments. The schedule of values is not considered as a commitment to prices in the event of later negotiations.

01150-3

1.07 MEASUREMENT AND PAYMENT ITEMS:

Item 10 – Mobilization & Preparatory Work: Consists of preparatory work and operations performed by the CONTRACTOR, including but not limited to, those necessary for the movement of personnel, equipment, supplies, and incidentals to the project site; for the establishment of all offices, buildings, and other facilities necessary for all work on the project; for premium on bonds and insurance for the Contract; and for other work and operations that must be performed or costs incurred before beginning work on the various items on the project site.

This item also includes constructing and maintaining detour road(s) and traffic control devices as necessary to provide public access through the project site on the BLM Lands Road year-round and for the duration of the project.

Mobilization costs for subcontracted work are also considered included.

Demolition and disposal of all existing structures designated for removal in the Contract Documents but not specifically included in other payment items are included in this payment item.

Measurement and payment for mobilization and preparatory work will be made at the Contract lump sum price. Progress payments for mobilization and preparatory work will be as follows:

When 5 percent of the total original Contract amount is earned from other Contract items, 50 percent of the amount bid for mobilization will be included in the progress payment estimate.

When 40 percent of the total original Contract amount is earned from other schedule items, the balance of the amount bid for mobilization and preparatory work will be included in the progress payment estimate.

Item 11 – Topsoil Stripping & Replacement: Consists of stripping, stockpiling and replacing topsoil from all staging, borrow, excavation, embankment, and waste areas. Seeding will be completed by Others. Topsoil stripping and replacement will be measured and paid at the Contract lump sum price. Removal of woody vegetation and trees from the embankment and auxiliary spillway are considered incidental to this item. Stripping and waste of materials in excavation areas that are unsuitable for embankment placement will be paid as part of Common Excavation.

Item 12 – Outlet Demolition: Includes removal of existing CMP outlet pipe and riser. This item includes removal of pipes, concrete cutoff collars, miscellaneous concrete, wire, rock, debris;

protection of existing materials not designated for removal; legal disposal at off-site facilities;

removal of loose material and all cleaning necessary or incidental to demolition. Measurement will be based on acceptable demolition, cleanup and removal. Payment will be made at the Contract lump sum price.

Item 13 – Common Excavation: Consists of excavation and stockpiling or wasting as necessary to construct work in accordance with the Contract Documents. Excavation areas include outlet works area. The quantity measured for payment will be to the defined neat-lines or as otherwise directed

01150-4 by the CO. Unauthorized over-excavation will not be included in measurement for this item.

Payment for this work will be made at the Contract unit price per cubic yard.

Item 14 – Inlet Muck Excavation: (Field Measured). Consists of excavation and wasting, as necessary, to remove muck (saturated soil) from the area of the existing principal spillway inlet.

Wasting will be in areas as directed by the CO. Payment for this work will be made at the Contract unit price per cubic yard.

Item 15 – Outlet Muck Excavation: (Field Measured). Consists of excavation and wasting, as necessary, to remove muck (saturated soil) from the area of the existing principal spillway outlet and the area of the construction of the riprap outlet basin. Wasting will be in areas as directed by the CO. Payment for this work will be made at the Contract unit price per cubic yard.

Item 16 – Compacted Embankment: Consists of loading from stockpiles or excavating from borrow areas, hauling, placing and compacting embankment in accordance with the Contract Documents.

Embankment areas include outlet works areas. Excavation and backfill for examination test pits is considered incidental to the price of this item. The quantity measured for payment will be to the defined neat-lines or as otherwise directed by the CO. Embankment placed to compensate for unauthorized over-excavation will not be included in measurement for this item. Payment will be made at the Contract unit price per cubic yard.

Item 17 – Filter Sand: Consists of furnishing and placing filter sand material in accordance with the Contract Documents. The quantity measured for payment will be computed using the neat line dimensions shown on the plans. Payment for this work will be made at the Contract unit price per cubic yard.

Item 18 – Drain Gravel: Consists of furnishing and placing drain gravel material in accordance with the Contract Documents. The quantity measure for payment will be computed using the neat line dimensions shown on the Drawings. Payment for this work will be made at the Contract unit price per cubic yard.

Item 19 – Dam Crest Road Gravel: Consists of furnishing and placing road gravel material in accordance with the Contract Documents. The quantity measured for payment will be computed using the neat line dimensions shown on the Drawings. Payment for this work will be made at the Contract unit price per ton.

Item 20 – Riprap Slope Protection: Consists of supplying from offsite sources and placing riprap on the upstream face in accordance with the Contract Documents. Supplying and installing geotextile filter fabric between riprap and subgrade is considered incidental to this item. Measurement will be computed using the neat line dimensions shown on the Drawings. Payment for this work will be made at the Contract unit price per ton.

Item 21 – Riprap Outlet Basin: Item includes furnishing and placing rock riprap material from an offsite source and furnishing and placing grout in accordance with the Contract Documents. PVC and steel pipes for drain weeps, HDPE pipe for dewatering sumps, and geotextile fabric associated

01150-5 with the outlet basin are considered incidental to this item. Excavation and compacted embankment to construct the basin are not included in this item and will be paid separately.

Measurement and payment will be made at the Contract lump sum price.

Item 22 – Spillway Tower: Consists of providing all materials for construction of the concrete spillway tower structure and Low-Level Inlet Structure. Item includes precast concrete manhole sections, stainless steel vent pipe, nonshrink grout for vent pipe encasement, lean concrete slab, concrete bedding around foundation, structural concrete floor, galvanized steel trash rack, precast concrete inlet, galvanized steel grating, rectangular steel tubes for stop logs, stainless steel stoplog guides, inlet to tower PVC pipe, and all other items necessary to construct the Spillway Tower and Low-Level Inlet Structure in accordance with the Contract Documents. Excavation and backfill will be measured and paid for separately under other items of work. Measurement and payment will be made at the Contract lump sum price

Item 23 – Outlet Conduit: Consists of furnishing and installing precast reinforced concrete pipe outlet conduit in accordance with the Contract Documents. This item includes outlet trench excavation through Compacted Embankment, pipe support blocks, reinforced concrete pipe, flap gate, steel reinforcing bars, and providing and placing concrete bedding and lean concrete cap.

Compacted Embankment around the outlet is not included in this item and will be paid separately.

Measurement and payment will be made at the Contract lump sum price.

Item 24 – Stabilization Fabric: (Field Measured). Consists of furnishing and installing geotextile stabilization fabric in accordance with the Contract Documents in areas directed by the CO.

Payment for this work will be made at the Contract unit price per square yard as measured and accepted in-place, excluding overlaps and anchoring.

Item 25 – Water Control/Dewatering: Consists of dewatering the reservoir and other water control measures necessary to complete the Work in accordance with the Contract Documents. Includes all design, equipment, facilities (including, but not limited to pumps, hoses, trenches, dikes, wells, sediment control), and operation required to maintain excavations and work areas free from water.

This item also includes removal of dewatering facilities upon completion of construction. The CONTRACTOR is responsible to design and maintain all construction water control features to prevent damage to the Work. Measurement and payment will be made, subject to acceptable construction progress, based on the Contract lump sum price for this item, prorated in equal monthly amounts throughout the construction schedule.

Item 26 – Lime Amended Embankment: Consists of furnishing hydrated lime, hauling, mixing lime with soil, water conditioning, placing, and compacting the lime treated soil in accordance with the Contract Documents. The quantity measured for payment will be computed using the neat line dimensions shown on the Drawings. Payment for this work will be made at the Contract unit price per cubic yard.

Bid Alternate 1 – Downstream Embankment Modification:

Item 101A – Mobilization & Preparatory Work: Consists of preparatory work and operations performed by the CONTRACTOR related to the Downstream Embankment Modification, including, 01150-6 but not limited to, those necessary for the movement of personnel, equipment, supplies, and incidentals to the project site; for premium on bonds and insurance for the Contract; and for other work and operations that must be performed or costs incurred before beginning work on the Downstream Embankment Face Modification item on the project site.

Mobilization costs for subcontracted work are also considered included.

Measurement and payment for mobilization and preparatory work will be made at the Contract lump sum price. Progress payments for mobilization and preparatory work will be as follows:

When 5 percent of the total original Contract amount is earned from Item 101B and 101C, 50 percent of the amount bid for mobilization will be included in the progress payment estimate.

When 40 percent of the total original Contract amount is earned from Item 101B and 101C, the balance of the amount bid for mobilization and preparatory work will be included in the progress payment estimate.

Item 101B – Downstream Embankment Common Excavation: Consists of excavation and stockpiling or wasting as necessary to construct work in accordance with the Contract Documents.

Excavation areas include the downstream embankment modification area. The quantity measured for payment will be to the defined neat-lines or as otherwise directed by the CO. Unauthorized over-excavation will not be included in measurement for this item. Payment for this work will be made at the Contract unit price per cubic yard.

Item 101C – Downstream Embankment Compacted Embankment: Consists of loading from stockpiles or excavating from borrow areas, hauling, placing and compacting embankment in accordance with the Contract Documents. Embankment areas include the downstream embankment face modification area. Excavation and backfill for examination test pits is considered incidental to the price of this item. The quantity measured for payment will be to the defined neat-lines or as otherwise directed by the CO. Embankment placed to compensate for unauthorized over-excavation will not be included in measurement for this item. Payment will be made at the Contract unit price per cubic yard.

Item 101D – Downstream Embankment Topsoil Stripping & Replacement: Consists of stripping, stockpiling and replacing topsoil from the downstream embankment modification construction area. Seeding will be completed by Others. Topsoil stripping and replacement will be measured and paid at the Contract lump sum price. Removal of woody vegetation and trees from the embankment are considered incidental to this item. Stripping and waste of materials in excavation areas that are unsuitable for embankment placement will be paid as part of Common Excavation.

01150-7

END OF SECTION 01150

01200-1

SECTION 01200 - PROJECT MEETINGS

1.01 PRE-CONSTRUCTION CONFERENCE:

A. A pre-construction conference will be held prior to the start of work. CONTRACTOR will be notified in advance of meeting time, date and place. The purpose will be to review required work, project drawings and specifications, construction schedules, payroll and payments, and administrative provisions of the Contract.

B. CONTRACTOR, subcontractors and the persons responsible for coordination of the work are required to be present at the meeting.

C. CONTRACTOR is required to be prepared to summarize and explain procedures planned for the project and to present the pre-construction submittals required.

END OF SECTION 01200

01300-1

SECTION 01300 – SUBMITTALS

1.01 DESCRIPTION:

This section includes the procedures for submittals. Items that need to be reviewed by the GOVERNMENT are included.

PART 3 - EXECUTION

3.01 SUBMITTAL PROCEDURE:

A. Coordinate all submittals and review them for accuracy, completeness, and compliance with contract requirements; and indicate CONTRACTOR's approval thereon as evidence of such coordination and review. Items submitted without evidence of the CONTRACTOR's approval will be returned for resubmission.

B. Date and Number: Forward to GOVERNMENT at least 30 days prior to needing approval or delivery to the site, all items required by the individual sections of the specifications.

C. Cover Letter: Forward all submittals with a cover letter from the CONTRACTOR, identifying the project and the portion of the Project to which it applies. Submittals that are related to or affect each other shall be forwarded simultaneously as a package to facilitate a coordinated review. Uncoordinated submittals will be rejected. The GOVERNMENT reserves the right to require submittals in addition to those called for in individual sections.

D. Electronic Submittals: An internet based electronic submittal and review system will be available for this project. The use of this system will be organized by the Government at no cost to the Contractor and will be the means for receiving and reviewing submittals.

01300-2

3.02 GOVERNMENT'S APPROVAL:

The GOVERNMENT will indicate approval or disapproval of each submittal and, if not approved, will indicate reasons therefor. Any work done prior to approval shall be at the CONTRACTOR's own risk. Any work done, or materials provided, prior to approval will not be eligible for payment until approval is obtained. Approvals do not relieve the CONTRACTOR from responsibility for complying with the requirements of this Contract. If submittals show variations from the Contract requirements, the CONTRACTOR shall describe such variations in writing, in the cover letter at the time of submission. The request for a variation shall include a proposal addressing the net effect on contract price and time.

3.03 REQUIRED SUBMITTALS:

A. Subcontractors: At the preconstruction conference, provide a list of all suppliers and subcontractors to be used on the project and a completed Form SF1413 (form provided at the end of this section) for each subcontractor.

B. Certificates: For those items called for in individual sections, furnish certificates from manufacturers, suppliers, or others certifying that materials or equipment being furnished under the Contract comply with the requirements of these specifications.

C. Shop Drawings: See the individual sections for specific requirements.

D. Work Schedule and Progress Payment Schedule: Submit a Work Schedule and an estimated Progress Payment Schedule.

01300-3

SUMMARY OF PROJECT- SPECIFIC REQUIRED SUBMITTALS: The following is a summary of submittals, by section, required by these specifications. Consult individual sections for a more complete description of individual requirements.

List of Submittals*

Submittal Number Submittal

Specification Reference Date Due**

01060-1 Contractor-Obtained Permits 01060 Preconstruction Conf.

01150-1 Schedule of Values for Lump Sum Items 01150 ** 01300-1 List of Subcontractors & Suppliers with completed Form

SF1413 for each subcontractor 01300 Preconstruction Conf.

01300-2 Work Schedule 01300 Preconstruction Conf.

01300-3 Estimated Progress Payment Schedule 01300 **

01400-1 Quality Control Records 01400 Within 24 hours of testing

01570-1 Traffic Control Plan 01570 ** 01700-1 Contractor Record Drawings 01700 At project closeout 01700-2 Supplier O&M Instructions 01700 At project closeout

02275-1 Riprap Source / Test Results 02275 ** 02300-1 Off-site Material Test Results 02300 ** 02300-2 Filter Sand and Drain Gravel Quality Control Tests 02300 As produced 02300-3 Foundation Treatment and Protection Plan 02300 ** 02300-4 Embankment Construction Plan 02300 ** 02300-5 Lime Treatment Plan 02300 ** 02370-1 Geosynthetics Product Data & Samples 02370 **

02724-1 Reinforced Concrete Pipe Materials Shop Drawings, and Product Data 02724 **

02724-2 Pipe Anchor Details to Prevent Flotation 02724 ** 02724-3 Waterproofing Products 02724 ** 02724-4 Manhole Shop Drawings, Product Data, and Placement

Information 02724

02724-5 Flap Gate Shop Drawings and Product Data 02724 **

03300-1 Concrete Mix Design 03300 ** 03300-2 Concrete Materials Product Data 03300 **

03300-3 Vent Pipe Encasement Form, Support, and Placement Plan 03300

03300-4 Reinforcement Shop Drawings 03300 ** 03300-5 Concrete Cold Weather Placing Plan 03300 ** 03300-6 Concrete Hot Weather Placing Plan 03300 **

05500-1 Steel Fabrication Shop Drawings 05500 ** *This list is not intended to be comprehensive; consult individual sections.

**Due date for all submittals is 30 days prior needing approval or delivery to the site, unless stated otherwise.

01300-4

01300-5

END OF SECTION 01300

01400-1

SECTION 01400 - QUALITY CONTROL/QUALITY ASSURANCE

1.01 DEFINITIONS:

A. Quality Control - planned and specific actions or operations necessary to produce a product that complies with the contract documents. Quality control consists of actions, inspections, sampling and testing necessary to ensure the work is in compliance with the contract documents and to control production and construction processes. Quality control is keyed to the construction sequence to quickly determine when the work is out of compliance with the contract documents and to respond to correct the situation and bring the work into compliance. Quality control is the responsibility of the CONTRACTOR.

B. Quality Assurance – planned and systematic observations, testing and actions to verify the work complies with the contract documents. Quality assurance includes oversight of the CONTRACTOR’s quality control, verifying the results of the CONTRACTOR’s testing and additional assurance sampling and testing. The GOVERMENT will provide quality assurance at a level determined necessary by the Contracting Officer.

C. Verification/Compliance Testing – sampling and testing which is carried out independent of the CONTRACTOR’s quality control testing to confirm/verify the work complies with the contract documents. The frequency of verification/compliance testing will be determined by the Contracting Officer. Verification/compliance testing will not be used to determine construction procedures or operations (i.e. rolling patterns, lift thickness, etc.). Verification/compliance testing will be provided by the Contracting Officer.

1.02 SUBMITTALS:

A. Submit records of all CONTRACTOR tests to the Contracting Officer within 24 hours of the testing. The Quality Control laboratory is to notify the CONTRACTOR and Contracting Officer promptly of irregularities or deficiencies observed in the Work during performance of the Quality Control Testing.

3.01 COOPERATION WITH QUALITY ASSURANCE:

A. Assure the GOVERNMENT and Contracting Officer have access to all work areas at all

01400-2 times work is in progress. Provide any special facilities or equipment to access work areas at CONTRACTOR expense.

B. Notify the Contracting Officer when the work is ready for quality assurance/quality control testing. Establish and update the construction schedule to provide the Contracting Officer estimated sampling/testing dates and times. Contracting Officer may choose to obtain a split and comparison test of any samples collected for quality control testing. Provide adequate notice of testing plans to coordinate collection of samples.

END OF SECTION 01400

01570-1

SECTION 01570 - TRAFFIC CONTROL

This work is the furnishing of labor, materials and equipment for installing, maintaining and operating traffic control devices to insure the safety of the general public and project personnel.

1.02 REQUIREMENTS:

Perform work under this section meeting Manual of Uniform Traffic Control Devices (MUTCD) and contract requirements. CONTRACTOR shall obtain approval of the Traffic Control Plan (TCP) from the CONTRACTING OFFICER.

1.03 SUBMITTALS:

A. Conform with Section 01300 – Submittals.

B. Traffic Control Plan – Submit at least 30 days prior to the beginning of construction. In the TCP, name one individual whose purpose shall be to coordinate traffic control and provide a 24-hour a day telephone number or numbers to contact this person. Cooperate with the CO and make adjustments to the traffic control plan as required or as necessary to fit specific field conditions.

1.04 SAFETY PROVISIONS:

Safety provisions are the responsibility of CONTRACTOR. CONTRACTOR must meet County, State, and Federal laws, regulations and ordinances to protect the public.

1.05 DETOURS:

Where required by the authority having jurisdiction that traffic be maintained over any construction work in a public street, road, or highway, and the traffic cannot be maintained on the alignment of the original roadbed or pavement, construct and maintain a detour around the construction work. Include with each detour all necessary barricades, guard rails, approaches, lights, signals, signs, and other devices and precautions necessary for protection of the Work and safety of the public all in accordance with the current edition of the MUTCD.

1.06 BARRICADES AND LIGHTS:

Provide all open trenches and other excavations with suitable barriers, signs, and lights to the extent adequate protection is provided to the public. Provide similar warning signs and lights to indicate obstructions such as material piles and equipment.

01570-2

Illuminate all barricades and obstructions by means of warning lights from sunset to sunrise. Place materials stored upon or alongside public roads (if any), and conduct the work at all times so as to cause minimum obstruction and inconvenience to the traveling public. Install all barricades, signs, lights and other protective devices, and maintain in conformity with applicable statutory or regulatory requirements and as required by the authority having jurisdiction.

PART 2 - PRODUCTS

2.01 TRAFFIC CONTROL DEVICES:

A. Compliance with Manual on Uniform Traffic Control Devices:

Ensure all traffic control devices and their application or usage conform to the current edition of "Manual of Uniform Traffic Control Devices" (MUTCD):

http://mutcd.fhwa.dot.gov/pdfs/2009r1r2/pdf_index.htm.

B. Reflectorized Signs and Barricades:

Ensure all signs and barricades are reflectorized. Ensure all traffic control devices in use are equipped with lighting devices as required in the most current edition of the MUTCD.

In particular ensure the channelization spacing, taper rates, standard mounting heights and size of signs are adhered to on this project. Where lighting devices are used at night, ensure they are flashing or constantly on (steady burn) depending upon their use, as defined in the MUTCD.

C. Assure all traffic control devices are clean, legible, reflective for night-time use, and operable.

3.01 WORK METHODS:

A. Place all traffic control devices as planned before permitting men or equipment on the traveled way.

B. Inspect the work area at least twice each day during construction and maintain records of traffic control devices used and their location.

C. Assure traffic control is appropriate to the work. Assure traffic control devices are appropriate and clean before suspending work for the day.

D. Remove and store all unnecessary traffic control devices away from traffic's view.

END OF SECTION 01570

http://mutcd.fhwa.dot.gov/pdfs/2009r1r2/pdf_index.htm

01600-1

SECTION 01600 - MATERIAL AND EQUIPMENT

1.01 COMPLETION OF WORK:

It is understood that, except as otherwise specifically stated in the Contract Documents, the CONTRACTOR shall provide and pay for all materials, labor, tools, equipment, water, light, power, transportation, supervision, temporary construction of any nature, and all other services and facilities of any nature whatsoever necessary to execute, complete, and deliver the Work within the specified time.

1.02 CONTRACTOR RESPONSIBILITY:

Store materials so as to insure the preservation of their quality and fitness for the Work. Locate stored materials to be incorporated in the Work so as to facilitate prompt inspection by the GOVERNMENT.

The CONTRACTOR is responsible for the condition and security of all materials furnished by CONTRACTOR, and shall replace all such material found to be defective or which has been damaged after delivery. This includes the replacement of material which is found to be defective at any time prior to expiration of the guarantee period.

1.03 MANUFACTURER'S RECOMMENDATIONS:

Apply, install, connect, erect, use, clean, and condition manufactured articles, materials and equipment as directed by the manufacturer.

1.04 SAMPLES:

Provide materials, supplies and equipment in accordance with samples submitted by the CONTRACTOR and approved by the Contracting Officer.

END OF SECTION 01600

01700-1

SECTION 01700 - CONTRACT CLOSEOUT

The work covered under this section includes items required in final closeout of this Project. Included are items such as post-construction inspection, acceptance of the work, closeout records and Project record drawings.

1.02 SUBMITTALS:

Provide closeout submittals for approval prior to final payment. Items to be submitted are:

A. Project Record Documents - See Item 3.02 for requirements.

B. Operation and Maintenance Instructions - Furnish electronically, complete literature, operating instructions, installation instructions, maintenance instructions, parts lists, and technical data on all items required herein or by the GOVERNMENT.

2.01 MISCELLANEOUS PRODUCTS:

Provide all maintenance materials, spare parts, tools, keys and other items either required in the Contract Documents or furnished by the suppliers of the various products.

3.01 CLEANING:

Use cleaning materials recommended by the manufacturer of the surface to be cleaned. Follow the instructions on the container.

Remove all tools, equipment, surplus materials, and rubbish. Repair all marred surfaces, and remove grease, dirt, stains and foreign materials from finished surfaces.

3.02 PROJECT RECORD DRAWINGS:

Using red colored ink, CONTRACTOR shall mark changes on a set of clean prints. Indicate all changes and revisions to the original design that affect the permanent structures and that exist in the

01700-2 completed work. Reference all underground facilities to permanent physical objects. Reference elevation of all existing lines on profile sheets or call out elevations in plan if no profile exists. Keep record drawings current during construction activities. Certification of accuracy and completeness is required on monthly payment requisitions.

3.03 POST-CONSTRUCTION INSPECTION:

Prior to expiration of the one-year correction period, the GOVERNMENT will inspect the Project to determine whether corrective work is required. The CONTRACTOR will be advised 14 days prior to inspection and notified in writing of all deficiencies. CONTRACTOR shall attend the post-construction inspection.

END OF SECTION 01700

SITEWORK

02050-1

DIVISION 2 - SITEWORK

SECTION 02050 - DEMOLITION

Remove and dispose of existing concrete and metal structures and pipes encountered in completing project excavations. Structures to be removed include but are not limited to the existing CMP spillway riser pipe and outlet conduit, steel trash rack, and miscellaneous concrete and steel structures.

1.02 PROTECTION AND RESTORATION OF PROPERTY:

The CONTRACTOR is responsible for all methods and operations of demolition. The CONTRACTOR is solely responsible for protection of all public and private property. Promptly repair any damage caused to adjacent facilities or property to the satisfaction of the GOVERNMENT at no additional cost to the GOVERNMENT.

3.01 SUBGRADE:

A. Remove all pieces of concrete, soil and rock loosened by demolition unless otherwise directed by GOVERNMENT.

B. Completely fill and compact areas and voids resulting from demolition work. Prepare soil subgrade surfaces as required beneath concrete structures and earth fills in accordance with the Contract Documents.

3.02 DISPOSAL OF MATERIALS REMOVED:

Concrete demolition material, including grout from inside pipes, may be buried on site in designated waste area as approved by CO. Steel and metal demolition material becomes property of the CONTRACTOR and shall be removed from the site. CONTRACTOR is responsible for lawful transport and disposal of materials.

END OF SECTION 02050

02110-1

SECTION 02110 - CLEARING

The work within this section consists of removing all trees, root balls, shrubs, brush, tall grass and similar vegetation as necessary to complete the Work.

3.01 REQUIREMENTS:

Remove all trees, shrubs, brush, tall grass, and similar vegetation located on the embankment or auxiliary spillway. Perform all clearing in a safe, prudent and lawful manner and only within the construction limits indicated on the Drawings. Dispose of all trees onsite as directed by the CO at no additional cost to the GOVERNMENT. Do not remove trees from the site without approval from the

CO.

END OF SECTION 02110

02275-1

SECTION 02275 - RIPRAP

Material requirements for slope protection and outlet stilling basin rock riprap supplied from offsite and riprap placement requirements for the Project.

1.02 SUBMITTALS:

A. Submit source of riprap.

B. Submit laboratory test results that show conformance to the material requirements of this section.

1.03 REFERENCES:

The publication(s) listed below form a part of these specifications to the extent referenced. The publications are referred to by the basic designation only.

A. American Society of Testing and Materials (ASTM)

1. ASTM C88 Test Method for Soundness of Aggregates by

Use of Sodium Sulfate or Magnesium Sulfate

2. ASTM C535 Test Method for Resistance to Degradation of Large-Size Coarse Aggregate by Abrasion and Impact in the Los Angeles Machine

3. ASTM D4992 Standard Practice for Evaluation of Rock to be Used for Erosion Control

4. ASTM D5312 Test Method for Evaluation of Durability of Rock for Erosion Control Under Freezing and Thawing Conditions

5. ASTM D6473 Test Method for Specific Gravity and Absorption of Rock for Erosion Control

02275-2

PART 2 - PRODUCTS

2.01 ROCK

A. Rock provided from offsite shall be dense, angular, reasonably well-graded, sound rock fragments resistant to abrasion, free of cracks, seams, clay, organic material and defects that would hasten degradation by water and/or frost action.

B. Quarried rock or boulders for use as slope protection or in the stilling basin from offsite shall have the following properties:

1. Bulk specific gravity (saturated-surface dry): 2.50 minimum, (apparent specific gravity minimum: 2.60) when tested in accordance with ASTM D6473.

2. Absorption: 2 percent or less, when tested in accordance with ASTM D6473.

3. Sodium sulfate soundness, loss: 10 percent loss or less for five cycles, when tested in accordance with ASTM C88, 5 cycles.

4. Resistance to abrasion, loss: 10 percent or less after 100 revolutions and 40 percent or less after 500 revolutions, when tested in accordance with ASTM C535.

5. Resistance to freeze thaw, loss: 10 percent or less, when tested in accordance with ASTM

D5312.

C. Shape:

1. Angular boulders or cobbles are acceptable.

2. Maximum dimension is not greater than 3 times minimum dimension.

D. Gradation: Furnish stone that is reasonably well-graded conforming to the gradation listed in Table 02275-1.

02275-3

TABLE 02275-1

RIPRAP GRADATION

Diameter* (in) Percent Smaller by Weight 12 100 9 65 – 90 7 25 – 50 4 0 – 10**

* Diameter is the median dimension when measuring length, depth and breadth.

** Include rock spalls or cobbles in an amount to just fill spaces between larger rocks, but not to excess. Larger-sized rock should be in point-to-point contact.

3.01 AREAS TO RECEIVE SLOPE PROTECTION

A. Place riprap slope protection to the lines and grades as shown on the Drawings.

3.02 PLACING

A. Subgrade Preparation:

1. Excavate, fill, or grade foundation soils in accordance with Section 02300 so riprap limits are as indicated on the Drawings or as directed by the CO.

2. As indicated on the Drawings, install bedding gravel or non-woven geotextile fabric underlayment, on prepared surfaces. For geotextile fabric ensure required overlaps are maintained and outer edges of geotextile are buried a minimum of 6 inches below grade.

B. Slope-protection rock need not be hand-placed or compacted but shall be handled and dumped to avoid material segregation

C. Place rocks so larger rocks are evenly distributed and small rock fragments fill the spaces.

D. Dump and smooth by moving rocks into position so material, when in place, is stable.

E. Begin slope-protection at toe and proceed up the slope.

F. Leave no large, unfilled spaces within slope protection.

END OF SECTION 02275

02300-1

DIVISION 2 – SITEWORK

SECTION 02300 – EARTH DAM

1.01 REFERENCES

A. ASTM International (ASTM)

1. ASTM C 25 Test Methods for Chemical Analysis of Limestone, Quicklime, and Hydrated Lime

2. ASTM C110 Test Methods for Physical Testing of Quicklime, Hydrated

Lime, and Limestone

3. ASTM C997 Specification for Quicklime and Hydrated Lime for Soil Stabilization

4. ASTM C 127 Specific Gravity and Absorption of Coarse Aggregate

5. ASTM C 136 Sieve Analysis of Fine and Coarse Aggregate

6. ASTM D 422 Particle-Size Analysis of Soils

7. ASTM D 653 Terminology Relating to Soil, Rock, and Contained Fluids

8. ASTM D 698 Laboratory Compaction Characteristics of Soil Using Standard

Effort (12,400 ft-lbf/ft3)

9. ASTM D 1140 Amount of Material in Soils Finer than the No. 200 (75-µm) Sieve

10. ASTM D 1556 Density and Unit Weight of Soil in Place by Sand-Cone

Method

11. ASTM D 2216 Laboratory Determination of Water (Moisture) Content of Soil and Rock by Mass

12. ASTM D 2487 Classification of Soils for Engineering Purposes (Unified Soil Classification System)

13. ASTM D 4254 Minimum Index Density and Unit Weight of Soils and

Calculation of Relative Density

02300-2

14. ASTM D 4318 Liquid Limit, Plastic Limit, and Plasticity Index of Soils

15. ASTM D 4643 Determination of Water (Moisture) Content of Soil by the

Microwave Oven Heating

16. ASTM D 5080 Rapid Determination of Percent Compaction

17. ASTM D 6938 In-Place Density and Water Content of Soil and Soil-

Aggregate by Nuclear Methods

18. ASTM D 7382 Maximum Dry Unit Weight and Water Content Range for Effective Compaction of Granular Soils Using a Vibrating Hammer

1.02 DEFINITIONS

A. Use definitions from ASTM D 653.

B. Borrow: Material from required site excavations or from designated borrow areas.

C. Coverage: One “coverage” is the result of successive passes by a piece of compaction equipment, which by means of sufficient overlap, ensures all areas has been subjected to one pass of the compaction equipment.

D. Dam Embankment: All portions of the dam embankment including: Previously placed material, Compacted Embankment, Riprap, Filter Sand, Drain Gravel, Structural Fill, and Gravel Surfacing.

E. Fines: Material passing the No. 200 sieve size (ASTM D 1140).

F. Optimum Water Content: The water content that will result from the estimated maximum dry unit weight of soil when subjected to the ASTM D 698 compaction test.

G. Percent Compaction: The ratio expressed as a percentage of the in place dry density to the estimated maximum dry density, in accordance with ASTM D 698, at the location of the in-place density…