DEAN_S_DAM_TECH_SPECS_mjm.pdf

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DEAN S 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 02241 Gabions 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 – Geotechnical Testing Summary

DRAWINGS – Bound Separately

GENERAL

REQUIREMENTS

DEAN S DAM SECTION 01010

BLM SUMMARY OF WORK

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GENERAL

WORK INCLUDED:

This project will repair Dean S Dam located in Custer County, Montana approximately 12 miles southeast of Mile City, MT. Major items of work for at this dam include:

1. Dewater reservoir and construction area.

2. Excavate the existing dam embankment and foundation including removal of a 36-inch diameter Corrugated Metal Pipe (CMP) and a 2-inch polyethylene stockwater water pipe.

3. Reconstruct the dam embankment including

a. Placement of compacted fill from onsite borrow sources,

b. Placement of compacted lime amended fill

c. Placement of imported rock for riprap slope protection along the upstream face,

d. Placement and compaction of imported sand and gravel for internal filter and drain features,

4. Construct precast concrete spillway riser for a new principal spillway.

5. Construct concrete encased, precast reinforced concrete pipe outlet conduit.

6. Construct concrete low-level inlet and gate control structures including installation of inclined slide gate and concrete encased gate stem.

7. Construct the Contractors Option of a gabion stilling basin or riprap stilling basin

8. Place gravel road surfacing along the crests of the dam.

9. 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.

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

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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. 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.

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 Government or 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.

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.

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.

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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.

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.

REFERENCES:

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

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

PRODUCTS – NONE

EXECUTION – NONE

END OF SECTION 01010

DEAN S DAM SECTION 01050

BLM FIELD ENGINEERING

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PART 1 - GENERAL

WORK INCLUDED:

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.

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.

PRODUCTS – NONE

END OF SECTION 01050

DEAN S DAM SECTION 01060

BLM PERMITS

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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.

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

DEAN S DAM SECTION 01150

BLM MEASUREMENT AND PAYMENT

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PART 1 - GENERAL

SCOPE:

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

GENERAL:

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

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.

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.

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.

ESTIMATED QUANTITIES:

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.

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

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.

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

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.

AUTHORITY:

Contracting Officer (CO) will perform all measurements and compute quantities for payment.

CO will verify measurements and quantities provided by CONTRACTOR.

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

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MEASURED QUANTITIES:

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 CO, 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 CO.

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.

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.

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

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

SCHEDULE OF VALUES:

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

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.

MEASUREMENT AND PAYMENT ITEMS:

Item 1 – 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.

1. 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.

2. Mobilization costs for subcontracted work are also considered included.

3. 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

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4. 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:

a. 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.

b. 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 2 – 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 adjacent areas are considered incidental to this item.

Item 3 – Outlet Demolition: Includes removal of existing CMP outlet pipes and riser. This item includes removal of pipes, concrete headwalls, 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 4 – 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 by the CO. Unauthorized over-excavation will not be included in measurement for this item. Waste of materials from excavation areas that are unsuitable for embankment placement is included in this item. Payment for this work will be made at the Contract unit price per cubic yard.

Item 5 – 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, outlet, dam foundation 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 6 – 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 7 – 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

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Item 8 – 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 9 – 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 10 – 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 11 – Outlet Basin: Contractor has the two options for constructing the basin either (1) a gabions or (2) riprap. (1) Item includes furnishing and installing gabion baskets for the gabion outlet stilling basin and gabion headwall structure in accordance with the Contract Documents.

This item includes gabion baskets, fasteners, gabion rock fill, gabion rock fill for the apron, drain gravel, and geotextile fabric. Excavation and backfill necessary for construction of the Gabion Outlet Basin is considered incidental to this item. Measurement and payment will be made at the Contract lump sum price.

(2) Item includes furnishing and placing rock riprap material from an offsite source and furnishing and placing grout in accordance with the Contract Documents to construct the grouted riprap basin.

PVC and steel pipes for drain weeps, HDPE pipe for dewatering sumps, and geotextile fabric associated with the outlet basin are considered incidental to this item. Excavation and backfill to construct the riprap 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 12 – Spillway Tower and Low-Level Inlet: The Spillway Tower consists of providing all materials for construction of the concrete spillway tower 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, fabricated trash rack, and all other items necessary to construct the Spillway Tower and Low-Level Inlet Structure in accordance with the Contract Documents.

The Low-level Inlet consists of constructing a concrete inlet structure with trashrack and new slide gate, gate stem, concrete gate pedestal structure, concrete gate stem encasement, steel staff gage with welded markings and all associated appurtenances in accordance with the Contract Documents. This item also consists of furnishing and installing High Density Polyethylene (HDPE) pipe between inlet structure and spillway tower in accordance with the Contract Documents. Trench excavation for the inlet conduit and providing and placing concrete bedding, and lean concrete cap are also included in this item.

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 13 – Outlet Conduit: Consists of furnishing and installing precast reinforced concrete pipe outlet conduit in accordance with the Contract Documents. This item includes outlet trench

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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 14 – 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 15 – 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

Item 16 – 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.

PRODUCTS – NONE

END OF SECTION 01150

DEAN S DAM SECTION 01200

BLM PROJECT MEETINGS

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PRE-CONSTRUCTION CONFERENCE:

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.

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

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

PART 2 - PRODUCTS – NONE

PART 3 - EXECUTION – NONE

END OF SECTION 01200

DEAN S DAM SECTION 01300

BLM SUBMITTALS

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DESCRIPTION:

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

PRODUCTS – NONE

EXECUTION

SUBMITTAL PROCEDURE:

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.

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.

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.

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.

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.

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REQUIRED SUBMITTALS:

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.

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.

Shop Drawings: See the individual sections for specific requirements.

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

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

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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 Data and 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 **

02724-6 Slide 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 **

03300-7 Concrete Batch Tickets 03300 **

05500-1 Manufacturer Product Data Sheets 05500 **

05500-2 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 to needing approval or delivery to the site, unless stated otherwise.

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END OF SECTION 01300

DEAN S DAM SECTION 01400

BLM QUALITY CONTROL/QUALITY ASSURANCE

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DEFINITIONS:

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.

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.

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.

SUBMITTALS:

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.

PART 2 - PRODUCTS – NONE

PART 3 - EXECUTION

COOPERATION WITH QUALITY ASSURANCE:

Assure the GOVERNMENT and Contracting Officer have access to all work areas at all times work is in progress. Provide any special facilities or equipment to access work areas at CONTRACTOR expense.

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

DEAN S DAM SECTION 01570

BLM TRAFFIC CONTROL

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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.

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.

SUBMITTALS:

Conform with Section 01300 – Submittals.

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.

SAFETY PROVISIONS:

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

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.

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.

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.

DEAN S DAM SECTION 01570

BLM TRAFFIC CONTROL

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PART 2 - PRODUCTS

TRAFFIC CONTROL DEVICES:

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.

Reflectorized Signs and Barricades:

1. 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.

2. 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.

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

PART 3 - EXECUTION

WORK METHODS:

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

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

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

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

DEAN S DAM SECTION 01600

BLM MATERIAL AND EQUIPMENT

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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.

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.

MANUFACTURER'S RECOMMENDATIONS:

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

SAMPLES:

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

PART 2 - PRODUCTS - NONE

PART 3 - EXECUTION - NONE

END OF SECTION 01600

DEAN S DAM SECTION 01700

BLM CONTRACT CLOSEOUT

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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.

SUBMITTALS:

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

Project Record Documents - See Item 3.02 for requirements.

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.

PRODUCTS

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.

EXECUTION

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.

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 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.

DEAN S DAM SECTION 01700

BLM CONTRACT CLOSEOUT

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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

DEAN S DAM SECTION 02050

BLM DEMOLITION

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PART 1 - GENERAL

WORK INCLUDED:

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.

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.

PRODUCTS – NONE

EXECUTION

SUBGRADE:

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

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.

DISPOSAL OF MATERIALS REMOVED:

Concrete demolition material, including grout from inside pipes, may be buried on site in designated waste area as approved by Contracting Officer (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

DEAN S DAM SECTION 02110

BLM CLEARING

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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.

PRODUCTS – NONE

EXECUTION

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

DEAN S DAM SECTION 02241

BLM GABIONS

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PART 1 - GENERAL

1.01 WORK INCLUDED:

Consist of furnishing, assembling, and filling PVC-coated woven wire mesh Gabions with rock to the dimensions, lines, and grades shown on the Drawings, or as determined by the

GOVERNMENT.

1.02 SUBMITTALS:

A. Submit manufacturers’ certification, test results, and records to show that all wire materials, fasteners, and coatings to be used for Gabions on this project conform to these specifications.

B. Submit source identification, samples, and certification for rock material to be used as fill for the Gabions. Include laboratory test results showing conformance with these specifications.

PART 2 - PRODUCTS

2.01 MATERIALS:

A. Woven Mesh Gabions

1. Wire: All tests on the wire mesh must be performed prior to manufacturing the mesh.

a. Tensile Strength: Both the wire used for the manufacture of gabions and the lacing wire, shall have a tensile strength of 54,000 to 75,000 psi (38-52 kg/mm2), in accordance with ASTM A641

b. Elongation: The test must be carried out on a sample at least 12 in. (30 cm) long.

Elongation shall not be less than 12%, in accordance with ASTM A370.

c. Zinc Coating: Minimum quantities of zinc according to ASTM A641, Class III soft temper coating.

d. Adhesion of Zinc Coating: The adhesion of the zinc coating to the wire shall be such that, when the wire is wrapped six turns around a mandrel having four times the diameter of the wire, it does not flake or crack when rubbing it with the bare fingers, in accordance with ASTM A641.

2. PVC (Polyvinyl Chloride) Coating:

a. Specific Gravity: 81-84 pcf (1.30-1.35 kg/dm3) in accordance with ASTM

D792, Table 1.

b. Hardness: Between 50 and 60 Shore D, according to ASTM D2240.

c. Tensile Strength: Not less than 2,985 psi (20.6 MPa), according to ASTM D412.

d. Modulus of Elasticity: Not less than 2,700 psi (18.6 MPa), according to ASTM D412

e. Abrasion Resistance: The percentage of the weight loss shall be less than 12%, according to ASTM D1242.

f. Creeping Corrosion: Maximum penetration of corrosion of the wire from a square cut end shall be less than 1 in. (25 mm) when the specimen has been immersed for 2,000 hours in a 50% solution HCl (hydrochloric acid 12 Be)

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The accelerated aging tests are:

g. Salt Spray Test: Test period 3,000 hours, test method ASTM B117.

h. Exposure to UV Rays: Test period 3,000 hours at 145° F (63° C), test method

ASTM D1499 and ASTM G23 apparatus Type E.

i. Brittleness Temperature: No higher than 15° F (-9° C), or lower temperature when specified by the purchaser, when tested in accordance with ASTM D746.

The properties after aging tests shall be as follows:

j. Appearance of Coated Mesh: No cracking, stripping or air bubbles, and no appreciable variation in color.

k. Specific Gravity: Variations shall not exceed 6%.

l. Hardness: Variations shall not exceed 10%.

m. Tensile Strength: Variations shall not exceed 25%

n. Modulus of Elasticity: Variations shall not exceed 25%

o. Abrasion Resistance: Variations shall not exceed 10%

p. Brittleness Temperature: Shall not exceed +64° F (+18° C)

3. Galvanized and PVC-coated Wire Mesh Gabions (8x10 mesh type):

a. Mesh Wire: Diameter-0.106 inch (2.70 mm) internal, 0.146 inch (3.70 mm) external.

b. Selvedge Wire: Diameter-0.134 inch (3.40 mm) internal, 0.174 inch (4.40 mm) external.

c. Mesh Opening: Nominal Dimension D=3.25 inches.

4. Galvanized and PVC-coated lacing wire and internal stiffeners:

a. Lacing Wire: Diameter-0.087 inch (2.20 mm) internal, 0.127 inch (3.20 mm) external.

b. Stiffener Wire: Diameter-0.087 inch (2.20 mm) internal, 0.127 inch (3.20 mm) external.

5. Spenax Fasteners (Overlapping Fasteners): Overlapping stainless steel fasteners may be used in lieu of lacing wire for basket assembly and installation. The spacing of the fasteners during all phases of assembly and installation shall be in accordance with spacing based on 1,200 lbs pull-apart resistance for PVC coated mesh and with a nominal spacing of 4 inches (100 mm), and not to exceed 6 inches (150 mm).

a. Stainless Steel Fasteners: Diameter-0.120 inch (3.05 mm), according to ASTM

A313, Type 302, Class I.

b. Tensile Strength: 222,000 to 253,000 psi (156-178 kg/mm2) in accordance with

ASTM A313.

c. Proper Installation of Rings: A properly formed Spenax fastener shall have a nominal overlap of one (1) inch after close.

B. Tolerances:

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1. Wire: Zinc coating, in accordance with ASTM A641, Class III soft temper coating.

2. Gabions: ±5% on the length, width, and height.

3. Mesh Opening: Tolerances on the hexagonal, double twisted wire mesh opening shall not exceed ±10% on the nominal dimension D values.

C. Fabrication:

Gabions shall be manufactured with all components mechanically connected at the production facility. The front, base, back, and lid of the gabions shall be woven into a single unit. The ends and diaphragm(s) shall be factory connected to the base. The lid may be a separate piece made of the same type mesh as the basket. All perimeter edges of the mesh forming the basket and top, or lid, shall be selvedged with wire having a larger diameter.

The gabion is divided into cells by means of diaphragms positioned at approximately 3-foot centers. The diaphragms shall be secured in position to the base so that no additional lacing is necessary at the jobsite.

D. Rock for Gabions:

1. Of hard, angular to round fragments, durable, and of such quality that it does not disintegrate on exposure to water or weathering during the life of the structure.

2. Having a minimum density of 156 pounds per cubic foot (specific gravity > 2.5) and absorption of 2% or less when tested in accordance with ASTM C127.

3. Loss not more than 10% by weight after 5 cycles in sodium sulfate soundness test, in accordance with ASTM C88.

4. See Table 02241-1 for rock sizes. A variation of 5 percent oversize and/or 5 percent undersize rock is allowed, provided that it is not placed on exposed surfaces.