HAYMEADOW CREEK IMPOUNDMENT SPECS.doc

B00000 00/00

CIM-0900-1F-101-0913-01 Haymeadow Dam Maintenance

SPECIFICATIONS

FOR

HAYMEADOW CREEK IMPOUNDMENT IMPROVEMENTS

U.S.D.A. Forest Service

CHEQUAMEGON-NICOLET NATIONAL FOREST

EAGLE RIVER-FLORENCE RANGER DISTRICT

JUNE 26, 2009

HAYMEADOW CREEK IMPOUNDMENT IMPROVEMENTS

U.S.D.A. Forest Service

CHEQUAMEGON-NICOLET NATIONAL FOREST

EAGLE RIVER-FLORENCE RANGER DISTRICT

TABLE OF CONTENTS

Title Page No.

Title Page

Table of Contents

SPECIFICATIONS

DIVISION 1 – GENERAL REQUIREMENTS

01010 Summary

3-4 01030 Measurement and Payment

01060 Codes and Standards

01330 Submittal Procedures

7-9 01400 Quality Requirements

10-11 01500 Temporary Facilities and Controls

12-14 01600 Product Requirements

15-16 01700 Execution Requirements

DIVISION 2 - SITE CONSTRUCTION

02010 Site Preparation

18-19 02015 Environmental Controls

20-21 02300 Earthwork

22-25 02600 Underdrain Structure

26-27 02821 Chain Link Fence

28-30 02920 Lawns and Grasses

31-33 DIVISION 4 - MASONRY (Not Used)

DIVISION 3 - CONCRETE

03030 Quality Control - Concrete

34-35 03100 Concrete Forms

36-38 03200 Concrete Reinforcement

39-40 03300 Cast-In-Place Concrete

41-46

DIVISION 5 – METALS

05120 Metal Gratings

47-48

DIVISION 6 - WOOD AND PLASTICS

06100 Rough Carpentry

DIVISION 7 thru 9 (Not Used)

DIVISION 10 SPECIALTIES

10410 Identifying Devices

10555 Geogrid

DIVISION 11 thru 16 (Not Used)

SECTION 01010

SUMMARY

PART 1 GENERAL

1.1 Scope of Work

A.

The work of this project consists of construction of improvements and required repairs needed on the Haymeadow Creek Impoundment Dam located on the Eagle River-Florence Ranger District of the Cheguamegon-Nicolet National Forest as shown on the contract drawings and described in these specifications. The Contractor assumes full responsibility for performance of the work and agrees to furnish all submittals, labor, superintendence, materials, tools, equipment, transportation and incidentals necessary for the successful completion of the project.

B.

A general outline of work is as follows:

1.

Measure and confirm all dimensions of the existing dam structure in relation to the proposed work.

2.

Upon confirming site conditions, submit all required pre-work submittals for approval by the Government.

3.

Furnish all labor, superintendence, materials, tools, equipment, transportation and incidentals necessary for and complete the specified repair work that makes the facility complete, acceptable by code and totally operational.

4.

Demolition of the damaged areas of the existing structure, removal of the existing work platform and pipe handrail, and debris removal is part of the work required.

5.

Perform all concrete replacement work.

6.

Install all handrail, fencing, work platform and miscellaneous fabricated steel.

7.

Remove and re-install new underdrain structure at the toe of embankment.

8.

Removal of unsuitable material as designated on plans, including tree removal, roots and part of the existing embankment, and the replacement of excavated area with proper fill material as specified.

10.

Repair and install all required rip-rap to meet requirements to re-establish the original dam structure, spillway and shoreline.

11.

Installation of new stop logs.

12.

Restoration of the site as shown on drawings including topsoil, seed, removing temporary gravel road bed, install new gravel base course on access road and seeding and mulching parking area, returning to original locations and conditions, originally at the site.

D.

All work must be straight, plumb level, true to line and closely fitted to tolerances as normally accepted in the work for the trade involved.

E.

Installation of materials shall be in accordance with the Plans and Specifications, Shop Drawings, and Manufacturer’s Instructions and be completed in a craftsman like manner.

F.

Coordinate and modify work with weather, other crafts on the project and progress of Subcontractors and materials delivered.

1.2 Contractor Use of Site

A.

The Contractor is responsible for the site while work is in progress.

B.

The location for storing materials and equipment at the site will be approved by the Government.

C.

The site around the dam is a popular site for the public. The Contractor shall

Secure all equipment, materials and work at the end of the work week and make the area safe and conducive to possible public use during the weekends.

1.3 Code Compliance

A.

General

1.

Supply all parts, equipment, incidentals and materials so that the completed work will meet these Specifications and all applicable Local, State, and Federal Codes.

2.

The Contractor and Sub-Contractors shall be State licensed for the type of work being performed.

B.

Safety

1.

All work shall be in strict accordance with the Department of Labor Occupational Safety and Health Standards, applicable State and local codes and ordinances.

2.

Provide, erect and maintain all necessary barricades, lights, and signs and shall take all necessary precautions for the protection of the workers and the public.

1.4 Job Site Conditions

A.

A condition of submitting a bid by the Contractor is certifying that he/she has reviewed the site, and that he/she is familiar with the project requirements.

1.5 Protection of Existing Improvements

A.

Protect all existing improvements such as roads, utilities, recreation improvements, the dam itself, trees, existing gabions, and earthen banks and all other items against damage.

B.

Load Restrictions: Comply with State and Federal load restrictions as posted.

1.6 Operating Restrictions, Scheduling, Plan of Operations

1.

Schedule and conduct the work in such a manner and in a sequence that will cause minimal interference with the public use of the facilities. Signing for closures is the responsibility of the contractor and will be detailed in the Contractor’s plan of operations.

2.

At least 10 days prior to beginning any work provide the Government a detailed work schedule and plan of operations indicating each item of work and contact persons with all applicable phone/page numbers.

3.

Notify the Contracting Officer’s Representative (COR) at least 48 hours prior to beginning any excavation.

4.

Work hours shall be M-F, 0700-1800 hrs unless otherwise agreed to in writing by the COR. No work will be allowed on Federal Holidays.

END OF SECTION 1010

SECTION 01030

MEASUREMENT AND PAYMENT

Part 1 - General

1.1 Measurement and Payment

A.

The quantities to be measured shall be the items as shown on the SCHEDULE OF ITEMS completed in place and operational. All other work and materials shall be considered incidental to and included in the payment of the pay items in the SCHEDULE OF ITEMS.

1.2 Payment

A.

The quantities shall be paid for as lump sum quantities as listed in the

SCHEDULE OF ITEMS. Such payment shall be considered full compensation for constructing the complete project in accordance with the plans and specifications. Pay requests may be made every 30 days. Items of LS can be requested for payment based on percentage of that item completed with prior approval of the COR. All other items are actual quantities and there will be no unit price change for items +/- 15% of original quantities.

PART 2 PRODUCTS

Not Used.

PART 3 PART EXECUTION

END OF SECTION 1030

SECTION 01060

CODES AND STANDARDS

Part 1 - General

1.1 The latest editions of the Codes and Standards of the following associations and listed publications will become part of this Contract:

A.

International Building Code 2003

B.

Applicable State and Local Codes

C.

American Concrete Institute (ACI - Manuals 211, 301, 305, 306, 306.1, 315, 318)

D.

American Institute of Steel Construction (AISC)

E.

"Structural Welding Code" - American Welding Society (AWS)

F.

American Society for Testing and Materials (ASTM)

G.

American National Standards Institute (ANSI)

H.

Occupational Safety and Health Administration (OSHA) Standards, CFR 29

1.2

All materials, workmanship, and designs shall meet specified requirements of the applicable standards referenced in this section, and other local or state codes, whichever is more stringent. If a particular item is not covered by a standard, it shall be proven by certified test by a reputable laboratory to be capable of performing satisfactorily.

PART 3 EXECUTION

END OF SECTION 01060

SECTION 01330

SUBMITTAL PROCEDURES

PART 4 GENERAL

4.1 SECTION INCLUDES

A. Submittal procedures.

B. Construction progress schedules.

C. Proposed products list.

D. Product data.

E. Shop drawings.

F. Samples.

G. Test reports.

H. Certificates.

I. Manufacturer's instructions.

4.2 SUBMITTAL PROCEDURES

A. Transmit each submittal with Owner accepted form.

B. Sequentially number transmittal forms. Mark revised submittals with original number and sequential alphabetic suffix.

C. Identify Project, Contractor, subcontractor and supplier; pertinent drawing and detail number, and specification section number, appropriate to submittal.

D. Submit number of copies Contractor requires plus 3 copies the Owner will retain.

E. Apply Contractor's stamp, signed or initialed certifying that review, approval, verification of products required, field dimensions, adjacent construction Work, and coordination of information is in accordance with requirements of the Work and Contract Documents.

F. Schedule submittals to expedite Project and deliver to the Owner. Coordinate submission of related items.

G. For each submittal for review, allow 15 days excluding delivery time to and from Contractor.

H. Identify variations from Contract Documents and product or system limitations which may be detrimental to successful performance of completed Work.

I. Allow space on submittals for Contractor and Owner review stamps.

J. When revised for resubmission, identify changes made since previous submission.

K. Distribute copies of reviewed submittals as appropriate. Instruct parties to promptly report inability to comply with requirements.

L. Submittals not requested will not be recognized or processed.

4.3 CONSTRUCTION PROGRESS SCHEDULES

A. Submit initial schedules within 20 days after date established in Notice to Proceed. After review, resubmit schedule containing required revised data within ten days.

B. Submit updated Progress Schedules with each Application for Payment.

C. Indicated estimated percentage of completion for each item of Work at each submission.

4.4 PROPOSED PRODUCTS LIST

A. Within 30 days after date of Notice to Proceed, submit list of major products proposed for use, with name of manufacturer, trade name, and model number of each product.

B. For products specified only by reference standards, give manufacturer, trade name, model or catalog designation, and reference standards.

4.5 PRODUCT DATA

A. Product Data: Submit to the Owner for review for limited purpose of checking for conformance with information given and design concept expressed in Contract Documents. Provide copies and distribute in accordance with SUBMITTAL PROCEDURES article and for record documents purposes described in Section 01700.

B. Mark each copy to identify applicable products, models, options, and other data. Supplement manufacturers' standard data to provide information specific to this Project.

C. Indicate product utility and electrical characteristics, utility connection requirements, and location of utility outlets for service for functional equipment and appliances.

D. After review distribute in accordance with Submittal Procedures article above and provide copies for record documents described in Section 01700.

4.6 SHOP DRAWINGS

A. Shop Drawings: Submit to the Owner for review for limited purpose of checking for conformance with information given and design concept expressed in Contract Documents. Produce copies and distribute in accordance with SUBMITTAL PROCEDURES article and for record documents purposes described in Section 01700.

B. Indicate special utility and electrical characteristics, utility connection requirements, and location of utility outlets for service for functional equipment and appliances.

C. Submit number of opaque reproductions Contractor requires, plus three copies Owner will retain.

4.7 SAMPLES

A. Samples: Submit to Owner for review for limited purpose of checking for conformance with information given and design concept expressed in Contract Documents. Produce duplicates and distribute in accordance with SUBMITTAL PROCEDURES article and for record documents purposes described in Section 01700.

B. Samples For Selection as Specified in Product Sections:

1. Submit to Owner for aesthetic, color, or finish selection.

2. Submit samples of finishes from full range of manufacturers' standard colors textures, and patterns for Owner selection.

3. After review, produce duplicates and distribute in accordance with SUBMITTAL PROCEDURES article and for record documents purposes described in Section 01700.

C. Submit samples to illustrate functional and aesthetic characteristics of Products, with integral parts and attachment devices. Coordinate sample submittals for interfacing work.

D. Include identification on each sample, with full Project information.

E. Submit number of samples specified in individual specification sections; Owner will retain one sample.

F. Reviewed samples which may be used in the Work are indicated in individual specification sections.

4.8 TEST REPORTS

A. Submit for Owner.

B. Submit test reports for information for limited purpose of assessing conformance with information given and design concept expressed in Contract Documents.

4.9 CERTIFICATES

A. When specified in individual specification sections, submit certification by manufacturer, installation/application subcontractor, or Contractor to Owner, in quantities specified for Product Data.

B. Indicate material or product conforms to or exceeds specified requirements. Submit supporting reference data, affidavits, and certifications as appropriate.

C. Certificates may be recent or previous test results on material or Product, but must be acceptable to Owner.

4.10 MANUFACTURER'S INSTRUCTIONS

A. When specified in individual specification sections, submit printed instructions for delivery, storage, assembly, installation, start-up, adjusting, and finishing, to Owner in quantities specified for Product Data.

B. Indicate special procedures, perimeter conditions requiring special attention, and special environmental criteria required for application or installation.

PART 5 PRODUCTS

PART 6 PART EXECUTION

END OF SECTION 1330

SECTION 01400

QUALITY REQUIREMENTS

PART 1 GENERAL

1.1

SECTION REQUIREMENTS

A.

Testing and inspecting services are required to verify compliance with requirements specified or indicated. These services do not relieve Contractor of responsibility for compliance with the Contract Document requirements.

1.

Testing and inspecting services to be performed by the contractor are as listed in the appropriate work sections.

2.

Contractor is responsible for scheduling inspections and tests.

3.

Retesting and Reinspecting: Contractor shall pay for additional testing and inspecting required as a result of tests and inspections indicating noncompliance with requirements.

B.

Submittals: Testing agency shall submit a certified written report of each inspection and test to the Contracting Officer. Reports of each inspection, test, or similar service shall include the following:

Name, address, and telephone number of testing agency.

Project title and testing agency's project number.

Date of report and designation (number).

4.

Dates and locations where samples were taken or inspections and field tests made.

5.

Ambient conditions at the time of sample taking and inspecting or field testing.

6.

Names of individuals taking the sample or making the inspection or test.

7.

Product and test method.

8.

Inspection or test data including interpretation of test results and comments or professional opinion on whether inspected or tested Work complies with requirements.

9.

Recommendations on retesting or reinspection.

10.

Name and signature of laboratory inspector.

D.

Testing Agency/Personnel Qualifications: Agencies that specialize in the types of inspections and tests to be performed and are acceptable to authorities having jurisdiction. If Contractor employed personnel perform tests, then their qualifications shall be submitted to the COR for approval. For example, concrete testing by an MCA/ACI Certified Field Technician Level 1, etc.

E.

Testing Agency Responsibilities: Testing agency shall cooperate with Architect and Contractor in performing its duties and shall provide qualified personnel to perform inspections and tests.

Agency shall promptly notify Architect and Contractor of deficiencies in the Work observed during performance of its services.

Agency shall not perform duties of Contractor.

PART 2 - PRODUCTS

Not Used

PART 3 - EXECUTION

3.1

EXAMINATION

Verify existing site conditions and substrate surfaces are acceptable for subsequent Work. Beginning new Work means acceptance of existing conditions.

Verify existing substrate is capable of structural support or attachment of new Work being applied or attached.

C.

Verify that all other work necessary for completion of new work is complete and in accordance with plans and specifications. Examine and verify that all materials and equipment are on-site and in accordance with plans and specifications prior to commencing work.

Examine and verify specific conditions described in individual specification sections.

END OF SECTION 01400

SECTION 01500

TEMPORARY FACILITIES AND CONTROLS

PART 7 GENERAL

7.1 SECTION INCLUDES

A. Temporary Utilities:

1. Temporary sanitary facilities.

B. Construction Facilities:

1. Field offices and sheds.

2. Vehicular access.

3. Parking.

4. Progress cleaning and waste removal.

5. Traffic regulation.

C. Temporary Controls:

1. Barriers.

2. Security.

3. Water control.

4. Dust control.

5. Erosion and sediment control.

D. Removal of utilities, facilities, and controls.

7.2 TEMPORARY SANITARY FACILITIES

A. Provide and maintain required facilities and enclosures.

7.3 FIELD OFFICES AND SHEDS

A. Location of Field Office to be coordinated with Contracting Officer’s Representative.

B. Construction: Portable or mobile buildings, or buildings constructed with floors raised aboveground, securely fixed to foundations with steps and landings at entrance doors.

1. Construction: Structurally sound, secure, weather tight enclosures for office and storage spaces. Maintain during progress of Work; remove when no longer needed.

2. Fire Extinguishers: Appropriate type fire extinguisher at each office and each storage area.

C. Environmental Control:

1. Storage Spaces: Heating and ventilation as needed to maintain products in accordance with Contract Documents; lighting for maintenance and inspection of products.

D. Storage Areas and Sheds: Size to storage requirement for products of individual Sections, allowing for access and orderly provision for maintenance and for inspection of products to requirements of Section 01600.

E. Removal: At completion of work remove buildings, foundations, utility services, and debris. Restore areas.

7.4 VEHICULAR ACCESS

A. Coordinate the construction of temporary access roads with Contracting Officer’s Representative to ensure minimal impact to the environment.

B. Location approved by Contracting Officer’s Representative.

C. Provide unimpeded access for emergency vehicles.

D. Provide means of removing mud from vehicle wheels before entering public roads.

7.5 PARKING

A. Use of designated areas of existing parking facilities by construction personnel is permitted. Location of designated parking facilities provided by Contracting Officer’s Representative.

B. Repair:

1. Repair existing facilities damaged by use, to original condition.

7.6 PROGRESS CLEANING AND WASTE REMOVAL

A. Maintain areas free of waste materials, debris, and rubbish. Maintain site in clean and orderly condition.

B. Collect and remove waste materials, debris, and rubbish from site periodically and dispose off-site.

7.7 TRAFFIC REGULATION

A. Flag Persons: Provide trained and equipped flag persons to regulate traffic when construction operations or traffic encroach on public traffic lanes.

B. Haul Routes:

1. Consult with authority having jurisdiction, establish public thoroughfares to be used for haul routes and site access.

7.8 BARRIERS

A. Protect non-owned vehicular traffic, stored materials, site, and structures from damage.

7.9 SECURITY

A. Security Program:

1. Protect Work from theft, vandalism, and unauthorized entry.

2. Initiate program in coordination with Owner’s existing security system at project mobilization.

3. Maintain program throughout construction period until directed by Owner.

B. Entry Control:

1. Restrict entrance of persons and vehicles into Project site to authorized personnel. Coordinate with Contracting Officer’s Representative.

7.10 WATER CONTROL

A. Grade site to drain. Maintain excavations free of water. Provide, operate, and maintain pumping equipment.

B. Protect site from puddling or running water. Provide water barriers as required to protect site from soil erosion.

7.11 DUST CONTROL

A. Execute Work by methods to minimize raising dust from construction operations.

B. Provide positive means to prevent air-borne dust from dispersing into atmosphere.

7.12 EROSION AND SEDIMENT CONTROL

A. Plan and execute construction by methods to control surface drainage from cuts and fills, from borrow and waste disposal areas. Prevent erosion and sedimentation.

B. Periodically inspect earthwork to detect evidence of erosion and sedimentation; promptly apply corrective measures.

7.13 REMOVAL OF UTILITIES, FACILITIES, AND CONTROLS

A. Remove temporary utilities, equipment, facilities, materials, and prior to Final Application for Payment inspection.

B. Clean and repair damage caused by installation or use of temporary work.

C. Restore existing and permanent facilities used during construction to original condition.

PART 8 PRODUCTS

Not Used.

PART 9 EXECUTION

Not Used.

END OF SECTION 01500

SECTION 01600

PRODUCT REQUIREMENTS

PART 10 GENERAL

10.1 SECTION INCLUDES

A. Products.

B. Product delivery requirements.

C. Product storage and handling requirements.

D. Product options.

E. Product substitution procedures.

10.2 PRODUCTS

A. Furnish products of qualified manufacturers suitable for intended use. Furnish products of each type by single manufacturer unless specified otherwise.

10.3 PRODUCT DELIVERY REQUIREMENTS

A. Transport and handle products in accordance with manufacturer's instructions.

B. Promptly inspect shipments to ensure products comply with requirements, quantities are correct, and products are undamaged.

C. Provide equipment and personnel to handle products by methods to prevent soiling, disfigurement, or damage.

10.4 PRODUCT STORAGE AND HANDLING REQUIREMENTS

A. Store and protect products in accordance with manufacturers' instructions.

B. Store with seals and labels intact and legible.

C. Store sensitive products in weather tight, climate controlled, enclosures in an environment favorable to product.

D. For exterior storage of fabricated products, place on sloped supports above ground.

E. Provide bonded off-site storage and protection when site does not permit on-site storage or protection.

F. Cover products subject to deterioration with impervious sheet covering. Provide ventilation to prevent condensation and degradation of products.

G. Store loose granular materials on solid flat surfaces in well-drained area. Prevent mixing with foreign matter.

H. Provide equipment and personnel to store products by methods to prevent soiling, disfigurement, or damage.

I. Arrange storage of products to permit access for inspection. Periodically inspect to verify products are undamaged and are maintained in acceptable condition.

10.5 PRODUCT OPTIONS

A. Products Specified by Reference Standards or by Description Only: Any product meeting those standards or description.

B. Products Specified by Naming One or More Manufacturers: products of one of manufacturers named and meeting specifications, no options or substitutions allowed.

C. Products Specified by Naming One or More Manufacturers with Provision for Substitutions: Submit request for substitution for any manufacturer not named in accordance with the following article.

10.6 PRODUCT SUBSTITUTION PROCEDURES

A. Owner will consider requests for Substitutions only within 15 days after date established in Notice to Proceed.

B. Substitutions may be considered when a product becomes unavailable through no fault of Contractor.

C. Document each request with complete data substantiating compliance of proposed Substitution with Contract Documents.

D. A request constitutes a representation that Contractor:

1. Has investigated proposed product and determined that it meets or exceeds quality level of specified product.

2. Will provide same warranty for Substitution as for specified product.

3. Will coordinate installation and make changes to other Work which may be required for the Work to be complete with no additional cost to Owner.

4. Waives claims for additional costs or time extension which may subsequently become apparent.

E. Substitutions will not be considered when they are indicated or implied on Shop Drawing or Product Data submittals, without separate written request, or when acceptance will require revision to Contract Documents.

F. Substitution Submittal Procedure:

1. Submit three copies of request for Substitution for consideration. Limit each request to one proposed Substitution.

2. Submit Shop Drawings, Product Data, and certified test results attesting to proposed product equivalence. Burden of proof is on proposer.

3. Owner will notify Contractor in writing of decision to accept or reject request.

PART 11 PRODUCTS

PART 12 EXECUTION

END OF SECTION 01600

SECTION 01700

EXECUTION REQUIREMENTS

PART 13 GENERAL

13.1 SECTION INCLUDES

A. Closeout procedures.

B. Final cleaning.

C. Protecting installed construction.

13.2 CLOSEOUT PROCEDURES

A. Submit final Application for Payment identifying total adjusted Contract Sum, previous payments, and sum remaining due.

13.3 FINAL CLEANING

A. Execute final cleaning prior to final project assessment.

B. Clean equipment and fixtures to sanitary condition with cleaning materials appropriate to surface and material being cleaned.

C. Clean site; rake clean landscaped surfaces.

D. Remove waste and surplus materials, rubbish, and construction facilities from site.

13.4 PROTECTING INSTALLED CONSTRUCTION

A. Protect installed Work and provide special protection where specified in individual specification sections.

B. Provide temporary and removable protection for installed products. Control activity in immediate work area to prevent damage.

C. Prohibit traffic from landscaped areas.

PART 14 PRODUCTS

PART 15 EXECUTION

END OF SECTION 01700

SECTION 02010

SITE PREPARATION

PART 1 GENERAL

Summary

Provide site preparation as shown and as specified.

Work includes, but is not limited to:

Protection of improvements and utilities.

Removal and replacement of improvements.

Clearing and grubbing trees and vegetation.

Topsoil salvage.

Miscellaneous demolition and salvage.

PART 2 PRODUCTS

(Not Used)

PART 3 EXECUTION

Protection

Protect improvements on site and on adjoining properties. Provide barricades, coverings, or other types of protection as necessary to prevent damage and to safeguard against injury. Restore to original condition improvements damaged by the work or improvements which required temporary removal during construction.

Protect existing vegetation outside of construction limits against cutting, breaking, bruising. Provide temporary fences, tree wells, barricades, or guards as needed.

Maintain survey monuments, reference points, and benchmarks; notify Government of disturbance to markers.

No extra payment or time will be allowed for protection work that could have been suspected or anticipated by site inspection and interpretation of bidding documents prior to execution of contract.

3.2 Utilities

Location and description of structures shown on drawings are approximate and are based on records available to Government or surface features indicating their existence. There may be other utilities within project area that are not shown.

Notify all affected utility companies of construction operations at least three working days before beginning work near their facilities. Do not begin excavation work until underground utility locations have been marked.

Use caution when excavating so that exact location of underground utilities, both known and unknown, may be determined. Provide adequate protection and support for utilities during construction operations.

3.3 Site Clearing

At Contracting Officer's direction, remove trees, stumps, snags, shrubs, brush, heavy growth of grass, weeds and other vegetation, improvements, rubbish and debris, and obstructions that interfere with proposed construction; remove items only as necessary for completion of work.

Cut brush and vegetation flush with ground. Grub out stumps, roots having a diameter of 2 in. or larger, and root clusters to a depth of at least 2 ft below subgrade elevation for pavements, structures, and embankments and 6 in. below ground surface in other areas.

At Contracting Officer's direction, carefully and cleanly cut roots and branches of trees indicated to be left standing, where such roots and branches obstruct new construction. Cut back roots a minimum of 1 ft from concrete work, paving, and structures and to a depth of not less than 2 ft below structures, foundations, and embankments.

3.4 Topsoil Stripping

Topsoil shall include all friable, fertile, loam soil suitable for grass and plants, found at surface to a depth of approximately 4 in., reasonably free of subsoil, clay lumps, stones, objects over 2‑in. diameter, weeds, large roots, root clusters, and other objectionable material.

Strip topsoil from project area to whatever depths encountered; prevent intermingling with underlying subsoil or other objectionable material. Remove heavy growths of grass from areas before stripping topsoil.

Where trees are indicated to remain, terminate stripping a sufficient distance from such trees to prevent damage to root system.

D.

Stockpile topsoil in storage piles in areas where designated. Construct storage piles to freely drain surface water. Cover or sprinkle water on storage piles to prevent windblown dust

3.5 Demolition

Remove improvements within construction limits as shown and as required for construction. Remove below-grade items encountered, such as large rocks, roots, slabs and obstructions that interfere with construction.

Government shall have first right to retain all useful salvage. All items not retained by Government and construction debris shall become property of Contractor.

3.6 Debris Disposal

Remove debris and excess materials from site and legally dispose of it; do not burn debris.

END OF SECTION 02010

SECTION 02015

ENVIRONMENTAL CONTROLS

PART 1 GENERAL

1.1 Summary

A. Provide permanent and temporary erosion control measures to minimize erosion and sedimentation during and after construction.

B. Contractor to provide an erosion control plan to Contractor Officer for approval before beginning construction.

PART 2 PRODUCTS

2.1 Silt Fence

Silt fence complying with the requirements of AASHTO M 288

2.2 Erosion Bales

Hay or straw, in good condition, with rectangular surfaces, tightly bound with twine (not wire).

PART 3 EXECUTION

Erosion Control

Maintain erosion control measures to protect the project site and prevent sediment pollution of adjacent surfaces and waterways.

Install erosion control measures prior to start of construction and maintain them until final completion of work. Unless otherwise instructed, remove temporary erosion control measures prior to final application for payment.

Strive to limit stripping of sod and vegetation to a period that will expose bare soil to the least possibility of erosion that construction requirements will allow.

Construct and maintain dams, channels, flumes, sumps, and other temporary diversion and protective works to divert stream flow and other surface water through or around construction site and away from work while construction is in progress. Unless otherwise specified, a diversion must discharge into the same natural drainage way in which its head waters are located.

Prevent tracking of soils and sediments onto public roads by constructing graveled access road and parking area as needed at the construction site in coordination with Forest Service and as shown on plans. Remove at the end of each work day soils and sediment reaching public roads not part of the construction site.

Silt Fence Installation and Maintenance

Install silt fence at locations and in manner as required to prevent erosion of construction area soils to adjacent waterway areas.

When possible, construct silt fence in an arc or horseshoe shape with its ends pointed up slope. Attach fabric to posts with wire staples or wooden lath and nails. Adequately bury bottom of fabric in a 6 in. trench cut into ground so as to prevent sediment from escaping under fence.

Inspect silt fences immediately after each rainfall and at least daily during prolonged rainfall.

Remove and dispose of sediment deposits when deposit reaches approximately one-half the volume capacity of silt fence.

Remove silt fences after slopes and ditches have been stabilized and turf developed to extent that future erosion is unlikely.

Dust Control

Minimize dispersion of dust from construction operations by application of water or other dust control materials. Controls shall confine dust and dirt within the immediate area of project. Masonry and debris shall be thoroughly soaked during demolition and loading operations.

Noise Control

Provide noise control measures to limit the amount of noise and prevent nuisance. Properly equip all equipment with mufflers. Limit construction activities generating significant noise to normal working hours.

END OF SECTION 02015

SECTION 02300

EARTHWORK

PART 1 GENERAL

Provide earthwork as shown and as specified.

1.2 Related Sections

02010 Site Preparations.

1.3 Classification

Excavation of materials encountered under this work will be unclassified without regard to type, difficulty to remove, or suitability for use in construction.

1.4

Protect existing improvements, utilities, trees and shrubs, and reference marks in accordance with Section 02010.

PART 2 PRODUCTS

Soil Materials, General

Soil materials shall be free of organic matter, debris, frozen soils, ice, and other objectionable materials. Rock particles larger than maximum size specified shall be removed prior to placement of soil.

Existing sub grade material from required excavations shall not be used for fill or backfill. Furnish approved material from suitable off-site sources.

Topsoil shall be fertile, friable natural loam containing a liberal amount of humus and capable of sustaining vigorous plant growth. Existing topsoil from site shall be re-used with contractor providing any additional material from off-site to meet minimum requirements and shall be pre-approved by the Government to be free of aggressive, non-native plant material prior to use.

Gravel Base Course

Crushed stone or crushed gravel complying with the requirements for the new road and parking lot base course, pre-approved by the COR, from off-site source.

2.3 Fill and Backfill for embankment replacement

A.

Select soils that are of an impervious material of low plasticity clay and silty sand, SC (clayey sand), CL (lean clay), SM (silty sand) pre-approved by the COR, from off-site source.

PART 3 EXECUTION

Preparation

Prepare site for work in accordance with Section 02010. Layout and stake lines and grades as required to complete the work.

Excavation

Excavate to achieve necessary dimensions, lines, grades, and side slopes as shown on the plans. Conform to elevations and dimensions shown within a tolerance of plus or minus 0.10 ft.

For footings and foundations, take care not to disturb bottom of excavation. Excavate to final grade just before concrete is placed. Trim bottoms to required lines and grades to leave solid, undisturbed base to receive granular fill, base course, or concrete as shown.

All topsoil within the construction limits shall be removed and stockpiled separately for use as topsoil backfill material.

Trenching

Excavate trench so that pipe can be laid safely and accurately to required line and grade. Hand excavate for bells, fittings and projections to allow for proper jointing and to insure that pipe rests evenly along barrel and is not resting on bell.

In drainage rock, bottom of trench shall be 6 in. below pipe barrel. Provide Granular Bedding as specified below.

Unauthorized Excavation

Unauthorized excavation consists of removal of materials beyond indicated elevations or side dimensions without specific direction of Contracting Officer. Unauthorized excavation, as well as remedial work, shall be at Contractor's expense. Notify Contracting Officer if unauthorized excavations are made.

Additional Excavation (Over Excavation)

When excavation has reached required sub grade elevation, notify Contracting Officer who will make an inspection of conditions. Inform Contracting Officer of unsuitable, unconsolidated sub grade soils.

If unsuitable bearing materials, such as poorly compacted fill, existing foundations, rubble, debris, or organic deposits, are encountered at required sub grade elevations, carry excavations deeper and replace excavated material with properly compacted Fill as directed by Contracting Officer.

Removal of unsuitable material is a requirement of this contract

Stability of Excavations

Maintain sides and slopes of excavations in a safe condition until completion of backfilling. Slope sides of excavations to angle of repose of material excavated; otherwise, shore and brace where sloping is not possible either because of space restrictions or stability of material excavated.

3.7 Dewatering

Perform earthwork in a manner to prevent surface water and ground water from flowing into excavations. Promptly remove water from excavations using pumps and dewatering system necessary to convey water away from excavations.

3.8 Examination of Sub grade

A.

Examine sub grade prior to placement of fill or backfill. Do not place materials on frozen sub grade. Plow, strip, or break-up sloped surfaces steeper than 1 vertical to 4 horizontal so that material will bond with sub grade. When sub grade has a density less than that specified for the particular area, breakup ground surface, pulverize moisture-condition to optimum content, and compact top 12 in. to density specified for new backfill.

3.9 Filling and Backfilling, General

Do not place fill or backfill until required excavation and sub grade preparation have been inspected and approved by Contracting Officer.

Place fill or backfill in approximately horizontal layers, compacted by tamping roller, do not exceed the maximum lift thickness of 6”. Spread piles and windrows uniformly.

Adjacent to structures, place fill or backfill to prevent damage and allow structures to assume loads gradually and uniformly, at approximately the same rate on all sides of structure.

Provide Backfill material to bring excavations to existing or designated grade.

Promptly backfill excavations as work permits.

3.12 Gravel Base Course

Provide gravel base course on roadway and parking lot as indicated on Drawings and as staked by Forest Service.

3.13 Trench Bedding and Backfill

Bedding, haunching, and initial backfill for rigid pipes shall be in accordance with ASTM C12, Class C or better. Bedding, haunching, and initial backfill for flexible pipes shall be in accordance with ASTM D2321, Class II or better.

Provide Granular bedding in trench from sub grade to a point supporting bottom 1/3 of pipe. Place bedding so that it fills and supports pipe haunch area.

Immediately after installation of pipe, provide tamped Granular Backfill up to a minimum depth of 4 inches below final grade to allow for topsoil. Take special care in placing and tamping initial backfill material so alignment and grade of pipe is not disturbed nor pipe damaged.

3.14 Grading

Grade area within project limits by cutting and/or filling as necessary to achieve lines and grades shown. Grade areas adjacent to structure lines to drain away from structure to prevent ponding. Finish surface to be reasonably smooth and free from irregular surface changes. Tolerance for areas to receive topsoil shall be 0.3 ft above or below established grade, less allowance for topsoil.

3.16 Compaction

A.

Place backfill and base material in maximum six-inch lifts and compact thoroughly with a flat-plate mechanical vibrator until visible deformation of the layer ceases. Add water as needed. (Minimum 3 passes).

Provide compaction equipment required to obtain desired compaction. Compaction by travel of grading equipment is not considered adequate for uniform compaction. Small vibratory compactors are required wherever fill is placed adjacent to foundation walls, footings, and piers. Pipe bedding and initial backfill shall be hand or mechanically tamped.

During placement and compaction, maintain moisture content of materials within optimum range.

3.17 Disposal of Excess and Waste Materials

Remove excess excavated material, trash, debris, and other waste materials and legally dispose of them off-site.

END OF SECTION 02300

SECTION 02600

UNDERDRAIN STRUCTURE

PART 1 GENERAL

Provide underdrain structure at toe of fill, replacing existing drainage structure, where shown on plans and as specified.

1.02 Related Sections

02300 Earthwork.

Drain Pipe

Drain pipe shall be 8” Schedule 40 PVC perforated.

Outfall pipe (final 24 inches) shall be non-perforated.

Perforations shall comply with the requirements of ASTM F758.

D.

Joints shall be elastomeric gasket type.

Filter Aggregate

Stone mixture, well graded, 1-1/2 in.

2.3 Rock Riprap

Furnish hard, durable, angular rock, resistant to weathering and water action, free of organic or other unsuitable material. Conform to the following Class III specifications:

20 % of rock to be 14 to 16 cubic inches

30 % of rock to be 10 to 14 cubic inches

40 % of rock to be 5 to 10 cubic inches

10 % of rock to be 0 to 5 cubic inches

Furnish rock with breadth and thickness at least 1/3 it’s length

2.4 Drainage Fabric

A.

Synthetic drainage fabric shall be a nonwoven polypropylene, polyethylene, or polyamide fabric with weight of 4.0 oz/sq yd (min.), tensile strength of 80 lb (min.), min. water flow rate of 100 gal/min/sq ft (constant head, 50 mm), and equivalent opening size of 70-100 (sieve); Amoco 4545, Mirafi 140N, or approved equal.

PART 3 EXECUTION

Preparation

Excavate and grade as required. Remove all organic material.

Installation

Place supporting layer of filter aggregate over compacted sub grade and drainage fabric where drain pipe is to be laid to depth as shown.

Lay drain pipe solidly bedded in filter aggregate. Provide full bearing for each pipe section throughout its length to true grades and alignment, and cont. slope in direction of flow.

Lay perforated pipe with perforations up, oriented symmetrically about vertical centerline.

Install and join pipe in accordance with manufacturer's recommendations.

Final 24 inches of pipe shall be non-perforated to prevent entrance of surface debris.

F.

Test or check pipes before backfilling to assure free flow. Remove obstructions, replace damaged components, and retest system until satisfactory.

G.

After testing drain pipes, place additional filter aggregate around sides and top of drains as shown. No compaction will be required beyond that resulting from placing and spreading operations.

H.

Overlay filter aggregate with one layer of drainage fabric, overlapping edges at least 4 in.

I.

Place 4” min. topsoil over fabric, seed and mulch per specifications.

J.

Place riprap at end of outfall pipe and restore downstream and upstream banks to original designed configuration, after excavation of unsuitable material and backfilling is completed, as shown on the drawings.

END OF SECTION 2600

SECTION 02821

CHAIN LINK FENCE

PART 1 GENERAL

Provide chain link fence, gates, and appurtenances as shown and as specified.

1.2 Submittals

Shop Drawings: Submit shop drawings for fence, gates, and appurtenances. Include plan layout; fence height; location and sizes of posts, rails, braces, gates and footings; product data; and erection procedures.

Samples: Submit fabric and post samples, approximately 6‑in. long or 6‑in. square.

Make submittals in accordance with Section 01330.

Quality Assurance

Provide chain link fence and gates as a complete unit produced by a single manufacturer, including necessary erection accessories, fittings, and fastenings.

PART 2 PRODUCTS

Fabric

Fabric shall be 11 gage steel wire in a 2‑in. mesh. Fabric shall be knuckled at one selvage and twisted and barbed at other selvage. Provide one-piece fabric widths for fence up to 12 ft.

Fabric shall be of the following:

Galvanized before or after weaving, ASTM A392, Class 2, with not less than 2.0 oz zinc per sq ft of surface.

Framework, General

Framework shall be steel. Strength requirements shall conform to ASTM F1043.

Pipe sizes indicated are commercial pipe sizes. Tube sizes are nominal outside dimension. H-section sizes are nominal flange dimensions. Roll-formed section sizes are nominal outside dimensions.

Steel framework and appurtenances shall be galvanized as follows:

Pipe: ASTM F1083 (1.8 oz. zinc psf).

Square Tubing, H, and Formed Sections: ASTM A123 (2.0 oz zinc psf).

Hardware and Accessories: ASTM A153 (zinc weight per Table I).

2.3 Posts

A.

Gate posts for supporting single gate leaf or one leaf of a double gate installation, for nominal gate widths shall be as follows:

2.875‑in. O.D. pipe weighing 5.79 plf.

2-1/2‑in. square tubing weighing 5.10 plf.

3‑in. x 3‑in. H-section weighing 6.50 plf.

3.5‑in. x 3.5‑in. roll-formed section weighing 4.85 plf.

2.4 Top Rails

Top rails, unless otherwise shown, shall be as follows:

1.660‑in. O.D. pipe weighing 2.27 plf.

1.625‑in. x 1.25‑in. roll-form sections weighing 1.35 plf.

Furnish in manufacturer's longest lengths, with expansion type couplings approximately 6‑in. long for each joint. Provide means for attaching top rail securely to each gate, corner, pull, and end post.

2.5 Braces

Use 1.660‑in. O.D. pipe weighing 2.27 plf for horizontal braces and 3/8‑in. diameter rod with turnbuckle for diagonal trusses.

Provide bracing assemblies at end and gate posts and at both sides of corner and pull posts, with horizontal brace located at mid-height of fabric. Provide manufacturer's standard galvanized steel or cast iron cap for each end.

2.6 Tension Wire

7 gage coil spring steel wire, finish to match fabric.

2.7 Wire Ties

9 gage steel wire or 6 gage preformed steel clips, finish to match fabric.

2.8 Stretcher Bars

One piece lengths with minimum length 2 in. less than full height of fabric, with a minimum cross-section of 3/16 in. x 3/4 in. Provide one stretcher bar for each gate and end post, and two for each corner and pull post, except where fabric is integrally woven into post.

2.9 Post Tops

Steel, wrought iron, or malleable iron, designed as a weather tight closure cap (for tubular posts). Provide one cap for each post. Furnish caps with openings to permit through passage of top rail.

2.10 Post Base (optional)

Contractor has the option to use Pipe Base Flanges or to bore holes into the existing concrete structure to support the required fence posts

Provide Pipe Base Flange of diameter of Pipe Posts, with minimum of two anchor bolt holes, to attach posts to the existing concrete structure, where indicated on Drawings if using the post base option.

C.

If not using the Post Base option, bore holes into existing concrete for post setting.

2.11 Handrail Brackets

A.

Provide Clip Angle Handrail bracket by Cooper B-Line (or approved equal) for posts on the metal work platform over the dam

PART 3 EXECUTION

Installation, General

Install fence in compliance with ASTM F567.

3.2 Concrete Boring

Bore anchor bolt holes into existing concrete to match placement of post base flanges (if using this option) for the fencing on top of the concrete structure, minimum diameters as recommended by fence manufacturer, space line posts evenly, 8 ft or less apart, unless otherwise indicated.

Bore holes approximately 6 in. below surface, for adequate support for lateral loads, in existing concrete walls if not using pipe post base flanges.

Setting Posts

Remove all loose and foreign materials from sides and bottoms of holes.

Center and align posts in flanges bolted to concrete, if using Post Bases option.

Center and align posts in bored holes with epoxy grout, if not using Post Bases

Center and align posts in the handrail brackets on the metal walkway

Fence Erection

Run top rail continuously through post caps or extension arms, bending to radius for curved runs. Provide expansion couplings as recommended by fencing manufacturer.

Install braces so posts are plumb when diagonal rod is under proper tension.

Install tension wire within 6 in. of bottom of fabric before stretching fabric and tie to each post with not less than same gage and type of wire. Pull wire taut, without sags. Fasten fabric to tension wire with 11-gage hog rings of same material and finish as fabric wire, spaced maximum 24 in. o.c.

Leave approximately 2 in. between finish grade and bottom selvage, unless otherwise indicated. Pull fabric taut and tie to posts, rails, and tension wires. Install fabric on security side of fence, and anchor to framework so that fabric remains in tension after pulling force is released.

Thread stretcher bars through or clamp to fabric 4 in. o.c., and secure to posts with metal bands spaced 15 in. o.c.

Tie fabric to line posts with wire ties spaced 12 in. o.c. Tie fabric to rails and braces with wire ties spaced 24 in. o.c. Tie fabric to tension wires with hog rings spaced 24 in. o.c. Use U‑shaped wire, conforming to diameter of pipe to which attached, clasping pipe and fabric firmly with ends twisted at least two full turns. Bend ends of wire to minimize hazard to persons or clothing.

Install nuts for tension band and hardware bolts on side of fence opposite fabric side. Peen ends of bolts or score threads to prevent removal of nuts.

Install gates plumb, level, and secure for full opening without interference. Install ground-set items in concrete for anchorage, as recommended by fence manufacturer. Adjust hardware for smooth operation and lubricate where necessary.

Repair damaged coatings in accordance with manufacturer's recommendations.

END OF SECTION 02821

SECTION 02920

LAWNS AND GRASSES

PART 1…