Attachment 1 SPECS Buckhorn.pdf

Specifications for Recreation Site Improvements – Buckhorn Campground

Part 1 – General Section

Division 1 - General Specifications Pages

SECTION 01010 – Statement of Work 1 SECTION 01060 – Regulatory Requirements 2 SECTION 01200 – Schedules and Reports 1 SECTION 01300 – Shop Drawings and Submittals 3 SECTION 01401 – Quality Control and Quantity Measurement 2 SECTION 01505 – Mobilization 1 SECTION 01600 – Use of Government Facilities 1 SECTION 01800 – Project Cleanup 1

Division 2 – Site Work Pages

SECTION 02052 – Demolition 3 SECTION 02101 – Site Preparation 2 SECTION 02142 – Dewatering and Site Drainage 1 SECTION 02200 – Earthwork 4

SECTION 02223 – Structural Excavation & Backfill 3 SECTION 02224 – Site Development and Grading 1 SECTION 02235 – Compacted Aggregate Base 4 SECTION 02505 – Emulsified Asphalt Slurry Seal 7 SECTION 02510 – Hot Bituminous Paving 2 SECTION 02521 – Patching & Crack Sealing 4 SECTION 02530 – Concrete Walkways & Pads 1 SECTION 02830 – Cast-in-Place Concrete Retaining Wall 1 SECTION 02845 – Boulder Barriers 1 SECTION 02847 – Signs, Traffic 2 SECTION 02875 – Kiosk 1 SECTION 02582 – Painted Traffic Markings 2 SECTION 02891 – Wheel Stops 1

Division 3 – Concrete Pages

SECTION 03100 – Concrete Formwork 2 SECTION 03200 – Concrete Reinforcement 3 SECTION 03300 – Cast-In-Place Concrete 5

Division 4 – Not Used

Division 5 – Not Used

Division 6 – Not Use Pages

SECTION 06100 – Rough Carpentry 7

Division 7 – Not Used

Division 8 – Not Used

Division 9 – Not Used

Division 10 – Not Used

Division 11 – Not Used

Division 12 – Furnishings Pages

SECTION 12600 – Site Furniture 1

Division 13 – Not Used

Division 14 – Not Used

Division 15 – Not Used

Division 16 – Not Used

Recreation Site Improvements DIVISION 1 Section 01010-1 Buckhorn Campground Angeles National Forest

SECTION 01010

STATEMENT OF WORK

PART 1 - GENERAL

1.01 Scope: The contractor shall provide all labor, materials, equipment, and supervision to perform campground rehabilitation on the Angeles National Forest. Work includes building demolition, campsite spur enlargement, road resurfacing, and the replacement of campground amenities.

1.02 Project Description: This project provides for the improvement of Buckhorn Campground located on Angeles Crest Highway, State Route 2. The project includes the demolition and removal existing toilet buildings, asphalt spurs, concrete posts, wood barriers, bulletin boards and other existing site amenities. The improvements include new picnic tables, fire rings, trash receptacles, signage, cast-in-place concrete retaining walls, site grading for increasing the size of campsite spurs, accessible campsites, and accessible walkways. The rehabilitated spurs will require compacted aggregate base and hot bituminous asphalt surfacing. Road rehabilitation includes crack cleaning and sealing, application of slurry seal, and painted traffic markings. All NEPA or other clearances will be provided by the Forest Service prior to start of construction.

1.03 Payment: Payment shall be made in accordance with Federal Acquisition Regulation Clause 52.232-5 Payments under Fixed-Price Construction Contracts.

PART 2 - PRODUCTS

Not Applicable.

PART 3 - EXECUTION

3.01 Work requirements: All work in the contract shall meet the codes and standards referenced in this Section and elsewhere herein, unless otherwise SHOWN ON THE DRAWINGS or in the specifications. When more stringent requirements are called out in these specifications or shown on the drawings, the more stringent requirements shall take precedence over the codes and standards. All work shall be performed in a workman-like manner according to the best practices of the trade and the best standards of the industry.

3.02 Requirements of Regulatory Agencies: All work performed shall comply with health, safety and fire protection codes, OSHA regulations, and/or applicable regulations established by Local, County and State Codes.

END OF SECTION

Recreation Site Improvements DIVISION 1 Section 01025-1

Angeles National Forest

SECTION 01025

MEASUREMENT AND PAYMENT

PART 1 - GENERAL

1.01 Scope: This section defines the methods of measurement, units of measurement, and determination of quantities, and payment for work. Measurement and Payment for contract work will be made only for and under those pay items included in the SCHEDULE OF ITEMS of this contract. All work, equipment, material, and incidentals shall be included in the bid price and payment for the appropriate related pay item.

FOR BID PURPOSES CONTRACTORS SHALL submit one lump sum as described in Section 01010, Part 1. The Contactor to whom the contact is AWARDED shall submit a project cost breakdown per schedule of items.

1.02 Method of Measurement: Following are the methods of measurement for determining final payment as designated on the Schedule of Items:

A. Designed Quantities (DQ)

1. These quantities denote the final number of units to be paid for under the terms of the contract. They are based upon the original design data available prior to advertising the project. Original design data includes the preliminary survey information, design assumptions, calculations, drawings and the presentation in the contract. Changes in the number of units of the originally contemplated work will not be made unless authorized under one or more of the following conditions:

a. As a result of changes authorized by the Contracting Officer in the originally contemplated work. Minor changes to adjust balance points, and the like, will not be considered changes in quantities.

b. As a result of the Contracting Officer determining that errors exist in the original design data used to determine designed quantities that cause a pay item to change by 10 percent or more.

c. As a result of the Contractor submitting to the Contracting Officer a written request showing evidence of errors in the original design data used to determine design quantities that cause a pay item total to change by 10 percent or more.

2. Final Payment for Designed Quantities: Final payment will be made for the designed quantities at the unit price shown in the Schedule of Items, subject to the provisions above.

B. Staked Quantities (SQ)

These quantities are determined from stake measurements prior to construction.

Recreation Site Improvements DIVISION 1 Section 01025-2

Angeles National Forest

C. Actual Quantities (AQ)

These quantities are determined from the measurements of the completed work.

D. Vehicle Quantities (VQ)

These quantities are measured in the hauling vehicles.

E. Lump Sum Quantities (LSQ)

These quantities denote one complete unit of work as required by or described in the contract, including necessary materials, equipment, and labor to complete the job. They will not be measured.

1.03 Determination of Quantities: Only actually completed and accepted work of the contract will be measured and determined as follows:

A. Area computations will be horizontal or corrected to horizontal plane.

B. Volumes of excavation or embankment will be by average end area or approved three-dimensional calculations. General grading will be by horizontal area and mean depth(s).

With prior written approval, or when specified, measured haul vehicle volumes or certified scale weigh bills may be substituted.

C. Structural volumes will be to the neat lines SHOWN ON THE DRAWINGS, or to the dimensions of limits indicated in the specifications.

1.04 Units of Measurement: Units of measurement will be those shown in the SCHEDULE OF ITEMS, and as defined in the specification sections. Accurate and approved measuring devices, appropriate to the unit, will be used for measuring.

A. Quantities other than job, each set, and the like will be measured to the whole amount.

B. Quantities such as job, each, set and the like, and subject to need for incrementing for partial payment, will be measured as a mutually acceptable percentage.

1.05 Payment: Payment will be made only for actual quantities completed and accepted, and measured as indicated above, or the items AS SHOWN ON THE SCHEDULE OF ITEMS.

Such payment will be at the Contract Unit Price for each Item as SHOWN ON THE SCHEDULE OF ITEMS, and shall constitute complete and final payment for such work.

Payment will be made for whole amounts or increments as indicated in Method of Measurement above.

1.06 Variations to Above: Variations may be permissible as agreed by Contracting Officer.

PART 2 - PRODUCTS

Not Applicable

Recreation Site Improvements DIVISION 1 Section 01025-3

Angeles National Forest

PART 3 - EXECUTION

Recreation Site Improvements DIVISION 1 Section 01060-1

Angeles National Forest

SECTION 01060

REGULATORY REQUIREMENTS

PART 1 - GENERAL

1.01 Scope: This section describes the Regulatory Requirements and the Codes and Standards that apply to the work in this contract.

1.02 Regulatory Requirements:

A. All laws, ordinances, codes, and regulations of the United States Government shall apply and be implemented into this contract.

B. The following codes and standards shall apply to the work in this contract (Where no date is specified, the applicable edition shall be the one in effect on the date of solicitation.):

1. International Building Code, (IBC), 2006 edition

2. Uniform Plumbing Code (UPC), 2000 edition

3. American Society for Testing Materials (ASTM)

4. Underwriters’ Laboratories (UL)

5. Uniform Federal Accessibility Standards (UFAS)

6. Forest Service Handbook 6709.11 Health and Safety Code Handbook

7. International Conference of Building Officials (ICBO)

1.03 Codes and Standards: Standards and practices set forth by the references mentioned elsewhere in these specifications shall be adhered to unless otherwise noted.

1.04 Duties of the Contractor:

A. Responsibilities: It is the duty of the Contractor to complete the work covered by this contract in accordance with approved plans and specifications.

B. Performance of the work: The Contractor shall carefully study the approved plans and specifications and shall plan his schedule of operations well ahead of time. If at any time it is discovered the work is being done which is not in accordance with the approved plans and specifications, the Contractor shall correct the work immediately.

All inconsistencies or items which appear to be in error in the contract documents shall be promptly called to the attention of the Contracting Officer’s Representative (COR). Local conditions which may affect the work shall likewise be brought to the attention of the COR at once. In no case, however, shall the instruction of the COR be construed to cause work to be done which is not in conformity with approved plans, specifications and change orders.

The Contractor shall not carry on work except with the knowledge of the COR.

Recreation Site Improvements DIVISION 1 Section 01060-2

Angeles National Forest

1.05 Contract Change Order: Where so indicated or in lieu of drawing or specification requirements, materials shall be used and installed in the best quality manner and method recommended by the manufacturer. Such recommendation shall be in written form. Substitution of materials shall be considered a Contract Change Order and as such shall be approved by signature of the Contracting Officer prior to use or fabrication.

1.06 Subcontractors: Subcontractors engaged to do work on the project must be approved by the

CO.

PART 2 - PRODUCTS

2.01 Products and Materials: All products and materials in the work shall meet the standards and requirements of the codes and standards referenced in Part 1 – General of this Section, and elsewhere herein unless otherwise SHOWN ON THE DRAWINGS. The more stringent requirements shall take precedence over the codes and standards.

2.02 Handling, Storage, Installation, and Maintenance: All materials, unless specified otherwise, shall be handled, stored, installed, and maintained in accordance with the manufacturer’s instructions and recommendations.

PART 3 - EXECUTION

3.01 Work requirements: All work in the contract shall meet the standards and requirements of the codes and standards referenced in Part 1 – General of this Section and elsewhere herein, unless otherwise SHOWN ON THE DRAWINGS or in the specifications. When more stringent requirements are called out in these specifications or shown on the drawings, the more stringent requirements shall take precedence over the codes and standards. All work shall be performed in a workman-like manner according to the best practices of the trade and the best standards of the industry.

Recreation Site Improvements DIVISION Section 01200-1

Angeles National Forest

SECTION 01200

SCHEDULES AND REPORTS

PART 1 - GENERAL

1.01 Scope: This section includes the requirements for the submittal of the Contractor’s proposed work schedule for the project and a breakdown of the Contractor’s bid amount for purposes of making progress payments.

PART 2 - PRODUCTS

2.01 Submittals: The submittal of the work schedule and cost breakdown shall be on paper and shall include three copies.

PART 3 - EXECUTION

3.01 Work Schedule: Within 5 days of the issuance of the Notice to Proceed, the Contractor shall submit to the Contracting Officer for approval a proposed work schedule for the project. Such schedule shall be in the form of a critical path network or other approved format and shall include the timing for each major phase of the work. The Contractor shall update such approved schedule as necessary when significant changes occur during the progress of the work.

3.02 Cost Breakdown: Within 15 days of the issuance of the Notice to Proceed, the Contractor shall submit to the Contracting Officer for approval a breakdown of ALL lump sum price items for the purpose of making progress payments. Such breakdown shall include each separate phase of the work but need not separate labor from material costs. The approved cost breakdown will constitute the basis under which monthly progress payments will be made.

Recreation Site Improvements DIVISION 1 Section 01300-1

SECTION 01300

SHOP DRAWINGS AND SUBMITTALS

PART 1 - GENERAL

1.01 Scope: Perform all work necessary and required for the construction of the project as indicated.

Such work includes but is not limited to the following:

A. Shop Drawings

B. Samples

C. Catalog Data

1.02 Related Work In Other Sections: The following items of associated work are included in other sections of these specifications:

A. Operating Instructions

B. Maintenance Manuals

C. Certificates and Warranties

1.03 Submittals: Submittals shall include all pertinent data required to understand the quality of components, dimensional relationships, integrations with other materials, assembly techniques, structural aspects, color, finish, texture, and other such characteristics as may be necessary to fully describe the item and its intended use.

PART 2 - PRODUCTS

Not Applicable

PART 3 - EXECUTION

3.01 Submittals:

A. Submittals shall be made for approval no more than 60 days after award of the contract, or as approved by the Contracting Officer.

B. Submittals and shop drawings shall be submitted in a timely fashion to allow 21 days for review by the government. No work shall begin until shop drawings and submittals are approved.

3.02 Shop Drawings:

A. Original Submittal: A reproducible and four copies of all shop drawings shall be submitted for approval as required under 3.01 above prior to fabrication, installation, or order

Recreation Site Improvements DIVISION 1 Section 01300-2 placement to allow for checking and coordination. The reproducible will be retained by the Contracting Officer.

B. Resubmittal: When a resubmittal is required, one print so indicating will be returned to the Contractor. After revision of the original, a new reproducible and four copies shall be submitted for approval.

C. Approval: Once approved, stamped documents shall be returned to the Contractor and shall be complied with as noted. Variation from the approved documents shall be likewise submitted and approved before being carried out.

3.03 Samples:

A. Original Submittal: Two samples of each item for which samples are required, unless otherwise specified, shall be furnished for approval. Approval shall be obtained prior to delivery of the material to the project site. These samples shall be representative of the actual material proposed for use in the project and of sufficient size to demonstrate design, color, texture, and finish, as they will appear in the completed installation.

B. Resubmittals: All rejected samples will be returned upon request and any or all resubmitttals required shall consist of two new samples.

C. Approval: Upon approval, one sample so noted will be returned and the remainder will be retained by the Contracting Officer until completion of the work. When requested, all approved samples will be returned for installation, providing that identity is maintained in an approved manner until final acceptance of the project.

3.04 Catalog Data:

A. Submittals: Four copies of catalog data are required for the original submittal and each resubmittal. Catalog data shall be submitted along with shop drawings. One copy will normally be returned unless additional copies are requested.

B. Data: Each submittal shall have all pertinent data contained therein that is applicable to the item submitted for approval.

3.05 Identification:

A. Catalog Data: Each separate catalog brochure for page submitted shall have the identification shown. Catalog of brochures submitted containing multiple items for approval need have only cover identification. In such cases the identification shall include page and catalog item numbers.

B. In the event that one or more of the multiple items is not approved in any submittal, the additional copies required will not be requested until all items are approved.

3.06 Contractor’s Responsibility:

Recreation Site Improvements DIVISION 1 Section 01300-3

A. Representation: By his submittal of any shop drawing or catalog data, the contractor thereby represents that he has determined and verified all field measurements, field construction criteria, materials, dimensions, catalog numbers and other essential data as well as, has verified the same construction criteria with the contract documents and other approved submittals.

B. Deviations: Approval of shop drawings, samples, or catalog data shall not relieve the contractor from responsibility of errors or omissions therein.

C. Prohibitions: No Portion of the work requiring a shop drawing, sample, or catalog data shall commence, nor fabrication begin, prior to approval of such items.

D. Coordination: Contractor shall be responsible for coordination between trades to insure total compatibility with or between substituted items and those existing, specified, or otherwise provided. Alterations required to achieve compatibility with or between substituted items, shall be accomplished without sacrifice of performance and at no additional cost to the Government.

E. Verification: Any change from elements as originally designed shall be substantiated by calculations and/or data certified by a registered engineer or architect licensed in the state in which the project is constructed.

Recreation Site Improvements DIVISION 1 Section 01401-1

Angeles National Forest

SECTION 01401

QUALITY CONTROL AND QUANTITY MEASUREMENT

PART 1 - GENERAL

1.01 Scope: This work shall consist of providing certification that the quality and quantity of construction conforms to the drawings, specifications, and requirements of the contract. Provide all personnel, equipment, tests, and reports necessary to meet the requirements of this specification.

PART 2 - PRODUCTS

Not Applicable

PART 3 - EXECUTION

3.01 General: The contractor shall provide and maintain a quality control system that will ensure conformance to specifications and requirements for all services, supplies, and construction work required or otherwise provided under this contract.

3.02 Certifications and Measurements:

A. Offsite Produced Materials: The Contractor shall furnish certificates executed by the manufacturer, supplier, or vendor, stipulating that all offsite produced materials incorporated into the work, meet the applicable requirements SHOWN ON THE DRAWINGS or stated in the specifications. All incidental purchases needed to remedy minor shortages of material must also be certified.

3.03 Sampling, Inspection, and Testing: Provide appropriate testing services, or an individual qualified to use testing devices, equipment, and supplies provided by the contractor, to accomplish the required testing and inspection in a timely manner. Take test samples as often as is necessary to achieve the quality of construction required of this contract, and make measurements of work performed onsite under this contract. Sampling and testing frequency for specific items will be SHOWN ON THE DRAWINGS, or in the specification(s).

3.04 As- Built Contract Drawings: The contractor shall maintain a set of contract drawings depicting as-built conditions. The drawings shall be maintained in a current condition, and made available for review. Changes from the original contract drawings shall be indicated in red on the as-built drawings. Upon completion of the contract work, submit as-built drawings to the Engineer.

Recreation Site Improvements DIVISION 1 Section 01505-1

SECTION 01505

MOBILIZATION

PART 1 - GENERAL

1.01 Scope: This work consists of preparatory work and operations necessary for the movement of personnel, equipment, supplies, and incidentals to the project site, as well as all other work and operations that must be performed or that cause costs to be incurred prior to beginning work on the various items on the project site.

1.02 Measurement and Payment:

A. The accepted quantities will be paid for at the contract unit price for item 01505 Mobilization.

B. Progress payments will be made as follows

1. The Government will pay to the Contractor in the first progress payment, the total premium paid by the Contractor to obtain bonds. This payment shall not be in addition to the contract price and will be included in Item 01505, Mobilization.

2. When 5 percent or more of the original contract amount is earned from other pay items, 50 percent of the amount for mobilization, or 5 percent of the original contract amount, whichever is less, will be paid.

3. When 10 percent or more of the original contract amount is earned from other pay items, 100 percent of the amount for mobilizations, or 10 percent of the original contract amount, whichever is less, will paid.

4. Upon completion of all work on the project, any unpaid amount for item 01505, Mobilization, will be paid.

C. The total of all payments will not exceed the original contract amount for items 01505, Mobilization.

PART 2 - PRODUCTS

Not Applicable

PART 3 - EXECUTION

Recreation Site Improvements DIVISION 1 Section 01600-1

SECTION 01600

USE OF GOVERNMENT FACILITIES

1.01 Scope: This work consists of the use, by the Contractor, of areas and facilities owned by the

Government during the construction of this project.

PART 3 - EXECUTION

3.01 Security: The Contractor shall be responsible for providing for the security of his equipment and materials delivered to the jobsite.

3.02 Sanitary Facilities: The contactor may use the existing sanitary facilities prior to demolition.

Once the new facilities have been placed and accepted by the governemnt, the contractor may use those as well. However, prior to final acceptance of the contract by the government, the new facilities must be washed down, thoroughly cleaned, and in “like new” condition.

3.03 Storage: The Contractor will be provided a work and storage area within the designated project area, as arranged and approved by the Contracting Officer. The Contractor's operations and storage of materials and equipment shall be confined to this area.

3.04 Services: Water for construction is available at Chilao, approxiately eight miles from the project site. There are no available utilities.

3.05 Construction Camp: The Contractor will be allowed to establish a construction camp at/on site in Self-contained units. Such use shall be in full accordance with all Forest Service Regulations.

3.06 Project Safety: The Contractor shall be responsible for providing a safe work place. Signs identifying the work site as a hard hat area shall be posted by the Contractor around the perimeter of the affected work areas. The Contractor shall also be responsible for a safe construction camp.

Recreation Site Improvements DIVISION 1 Section 01800-1

Angeles National Forest

SECTION 01800

PROJECT CLEANUP

PART 1 - GENERAL

1.01 Scope: This section covers intermediate and final cleanup of the project. The Contractor also shall, at all times during the progress of the work, keep the worksite clean of all rubbish, material scraps, and construction debris.

PART 2 - PRODUCTS

2.01 All cleaning materials and equipment used shall be selected and employed with care to avoid scratching, marring, defacing, staining, or discoloring the surfaces to be cleaned.

PART 3 - EXECUTION

3.01 Cleanup During Construction: Cleanup shall be performed by the Contractor as required to prevent accidents to personnel and protect all work in-place. Construction cleanup shall consist of the removal of all dirt, trash, scrap, debris, and excess materials from any surface that may lead to personal injury, or damage to equipment or facilities.

3.02 Final Cleanup: Final cleanup shall be performed, prior to the Contractor’s request for final inspection for the Project.

3.03 Quality of Cleanup: In addition to the normal “broom clean” requirements, the following requirements shall be completed:

A. All new restrooms, if used by the contractor, shall be clean and in “like new” condition.

B. Remove all trash, debris and surplus excavated material.

C. No items shall be left or discarded elsewhere on the site.

D. Items that will be discarded shall be removed to a proper disposal location off National Forest lands.

Recreation Site Improvements DIVISION 2 Section 02052-1

SECTION 02052

DEMOLITION

1.01 Scope: Perform demolition work AS SHOWN ON THE DRAWINGS and as specified herein.

Work may be indicated by note or by non-inclusion in features shown to remain. The work consists of:

A. Demolishing existing restroom buildings.

B. Removing existing concrete posts, wood barriers, wooden bulletin boards, fire rings and designated picnic tables AS SHOWN ON THE DRAWINGS.

C. Demolishing existing asphalt and grinding it for use as base material in areas requiring new asphalt pavement (at spurs).

D. Saw-cutting existing asphalt pavement at spurs to be enlarged.

E. Disposing of demolished and removed materials (except for asphalt).

F. Salvaging indicated items and materials for re-use by the government. Salvaging any other items or materials designated for disposal as the Contractor's right (subject to codes or regulations).

1.02 Project Conditions:

A. Perform all demolition work after enacting site protection measures of items to remain.

B. Dust Abatement: Sprinkle demolished materials/mulch to control dirt and dust. Prevent flooding and contaminated runoff.

C. Existing Utilities: The Contractor shall verify the location of utility lines. It may be necessary to relocate domestic water lines to complete the work.

D. Demolition Schedule: Provide a schedule indicating proposed demolition methods, operations, and sequence for review and acceptance before start of the work. Include termination or continuation of utility services required by project conditions.

E. Safety: Demolition work shall be performed in a manner to ensure the safety of persons.

Existing facilities designated to remain shall be protected against damage by settlement, falling debris, or other causes in connection with this work.

F. Explosives: Use of explosives is not permitted.

Recreation Site Improvements DIVISION 2 Section 02052-2

Angeles National Forest

G. All work shall be in accordance with codes, regulations, and safety orders, and subject to approval of the Contracting Officer.

1.03 Salvage: Fire rings and any other items or materials indicated in these specifications or on the drawings to be salvaged for reuse by the government shall be protected from damage. All other items and materials become the property of the Contractor for disposal as indicated, or for salvage at the Contractor's option.

2.01 Equipment: The Contractor shall select equipment of an appropriate size and type suitable for the space and other constraints of this contract as subject to approval by the Contracting Officer.

PART 3 - EXECUTION

3.01 Inspection: Prior to starting demolition work, the Contractor shall make an inspection with the

Contracting Officer to determine the physical condition of adjacent improvements scheduled to remain.

3.02 Demolition:

A. Remove existing restroom buildings, concrete posts, wood barriers, and bulletin boards, and wheel stops.

B. Remove designated wood picnic tables and fire rings.

B. Asphalt Paving: Saw-cut and remove indicated asphalt paving. Asphalt may be crushed and reused as sub-base fill with native or borrow material at 1:3 ratio upon approval of

C. Existing Utilities:

1. Information on the drawings relating to existing utility lines and services is from the best sources presently available and is not guaranteed to be accurate. The Contractor shall verify actual locations.

2. Perform work and provide necessary materials to disconnect or relocate existing utilities as necessary.

3. Underground utilities do not need to be removed except where encountered in other construction, such as trenching, excavation, and the like.

Pipelines shall be cut back or removed 1 foot outside of trench and shall be capped or plugged mechanically. If remaining line is to be alive, cap or plug shall provide a liquid seal against pressure(s) of system. Removed material shall be disposed of off Government land.

Recreation Site Improvements DIVISION 2 Section 02052-3

Angeles National Forest

3.03 Fire Rings and picnic tables: Remove fire rings and designated picnic tables specified for demolition. Stockpile at a designated location those items that are to be reused by the government.

3.04 Disposal: Remove all waste materials, rubbish, and debris. Accumulation is not permitted.

Clean-up, transport and dispose in accordance with applicable codes and regulations.

3.05 Salvage Items and Materials:

A. Items indicated for salvage and reuse, or to be turned over to the government, shall be removed with care and stored until reused or accepted by the Government. Such items shall be protected from physical or weather damage.

B. Any item or material not so indicated for salvage or reuse by the government shall be removed from the project site for disposal. Disposal or salvage of such items is the Contractor's option, subject to codes or regulations.

Recreation Site Improvements DIVISION 2 Section 02101-1

Angeles National Forest

SECTION 02101

SITE PREPARATION

PART 1 - GENERAL

1.01 Scope: Perform site preparation work AS SHOWN ON THE DRAWINGS and specified herein.

The work includes:

A. Protecting existing trees and vegetation

B. Clearing and Grubbing

1.02 Project Conditions:

A. Perform all vegetation protection work before commencing with demolition and site construction.

B. Locate, protect, and maintain active utilities and site improvement scheduled to remain.

C. Any areas adjacent to the site that are disturbed or damaged as a result of the site preparation work shall be restored to original grades and conditions.

PART 2 - PRODUCTS

2.01 Equipment: The Contractor shall select equipment of the appropriate size and type suitable for the space and other constraints of this contract as subject to approval by the Contracting Officer.

PART 3 - EXECUTION

3.01 Tree and Vegetation Protection: Protect all existing trees and vegetation not scheduled to be removed against injury or damage, including cutting, breaking, skinning or bruising of roots, trunks or branches; smothering by stockpiled construction materials, excavated materials or vehicular traffic with in branch spread.

3.02 Disposal of Waste Materials:

A. Stockpile, haul from site, and legally dispose of waste materials and debris. Accumulation is not permitted.

B. Maintain disposal routes clear, clean, and free of debris.

3.03 Clearing and Grubbing:

A. Written approval of clearing and grubbing is required prior to beginning excavation, to verify actual condition on site

B. All debris, trees, stumps, downed timber and roots within the clearing limits not designated to remain, shall be cleared, grubbed, removed and disposed of as specified herein.

Recreation Site Improvements DIVISION 2 Section 02101-2

Angeles National Forest

C. All roots protruding into trenches shall be cut flush with trench sidewalls.

D. All roots protruding from the backslopes of excavation shall be cut flush with the backslope surface.

E. Clearing limits for trenches shall extend one foot on either side of the trench centerline.

F. If limb damage occurs on trees designated to remain or on trees outside the clearing limits, cut off limb and apply an approved tree sealant.

G. An approved tree sealant shall be applied to the trunks of all damaged trees not designated to be removed.

H. Slash and debris resulting from clearing operations shall be hauled off of National Forest Land.

I. Downed trees shall be cut into lengths not to exceed 6 feet and all limbs removed.

3.04 Cleaning: Upon completion of site preparation work, clean areas within contract limits, in accordance with Section 01800.

Recreation Site Improvements DIVISION 2 Section 02142-1

SECTION 02142

DEWATERING AND SITE DRAINAGE

1.01 Scope: This work consists of control and diversion of surface or sub-surface water away from any and all project work, whenever such a requirement occurs as a part of the work, or interferes with such work. Diversion, drainage, and other handling of such water shall cause no damage, unwarranted erosion, siltation, or other harmful effect, and shall meet all code requirements for such cases.

3.01 General: In the case of uncontrolled water or dewatering activities, work shall be as follows:

A. All diversion ditches, dikes, or cofferdams necessary shall be constructed to achieve and maintain a well drained site. Drainage shall be to an approved disposal location as for storm water.

B. Care shall be taken so that no diversion at one site damages or adversely impacts any location, creates a hazard to workers or public health or safety. All erosion or siltation is prohibited. All such work shall be in accordance with all regulations applicable.

Mechanical removal and conductance devices may be used if such are not prohibited by regulation.

C. All dewatering work, any equipment and conduits, and all physical or other appurtenances and methods, shall be subject to approval by the Contracting Officer prior to doing such work.

D. Upon completion of dewatering, all work shall be cleaned up and restored to the original or planned condition.

Recreation Site Improvements DIVISION 2 Section 02200-1

SECTION 02200

EARTHWORK

PART 1 - GENERAL

1.01 Scope: This work consists of providing and installing all earthwork and related work.

Earthwork shall include but not be limited to the following:

A. Excavation to levels and lines required for sub-grade work.

B. Fill and backfill to grades indicated.

C. Removal of unsuitable sub-grade material and replacement with acceptable material.

D. Compaction

E. Rough and finish grading to levels and lines indicated

F. Finish grading

G. Fill material

1.02 Protection: Furnish, install, and maintain all supports, shoring, and sheet piling required to support the sides of excavation and to protect adjacent work or existing improvements.

1.03 Verification of Conditions: The Contractor prior to beginning work by careful examination of existing conditions and information shall inform himself as to the nature and location of the work, the conformation of the ground, the nature of subsoil conditions, groundwater conditions, nature and extent of materials or existing improvements to be encountered and any and all determinable matters that can affect the work.

PART 2 - PRODUCTS

2.01 Backfill: General: All fill material shall be approved by the Contracting Officer. Excavated materials from the site may be used if approved. Imported fill shall be non-expansive and predominantly granular soil or soil rock mixture which is free from organic matter and deleterious substances and which does not contain materials over two inches in the greatest dimension. Material having a dimension greater then 1-½ inches shall not be used in the upper six inches of fill.

2.02 Select and Non-Select Backfill:

A. Select Backfill: Select backfill shall consist of hard, durable granular soil or a soil-rock mixture.

It shall be non-expansive, free of organic matter and deleterious substances. It shall contain no lumps or particles larger than ½ inch and only 30 percent of the material shall exceed ¼ inch.

Recreation Site Improvements DIVISION 2 Section 02200-2

Angeles National Forest

Material shall be obtained by screening of excavated or borrow material, or form an approved source.

B. Non-select material shall be of the same quality as above, except it shall contain no particles or lumps in excess of 6 inches in greatest dimension and only 15 percent greater than 2 inches.

2.03 Imported Fill Material: Imported fill materials shall consist of hard, durable granular soil or soil-rock mixture. It shall be non-expansive, free of organic matter and deleterious substances. It shall contain no particles or lumps in excess of 4 inches in greatest dimension and only 15 percent greater than 2 inches.

PART 3 - EXECUTION

3.01 Site Conditions: Topographic drawings of the project are intended for reference only.

Contractor shall verify all actual site conditions, levels and grades prior to beginning work and inform the Contracting Officer as to any discrepancies that exist.

3.02 Excavation and Disposal:

A. General excavation shall be made to dimensions and elevations indicated or implied on the drawings. Excavation for concrete sections to be formed shall be sufficient in width to allow for convenient construction and removal of forms.

B. Excavated material not suitable for backfill shall be removed and disposed of off National Forest Land. Rock and boulders may be scattered on site with prior approval from the Contracting Officer.

C. All material to be excavated shall be unclassified and shall include earth fill, gravels, boulders, debris and any other materials encountered in excavation and grading operations.

The contractor shall remove all materials to the depth and extent indicated on the drawings or specified herein.

D. Unsuitable material not having the required bearing capacity as shown on drawings or that has been disturbed or weakened by construction activity shall be completely removed and replaced with compacted backfill material or concrete to the required levels. The unsuitable material removed shall be disposed of as directed by the Contracting Officer.

3.03 Backfill and Compaction:

A. Prior to placement of backfill, all forms shall be removed and the excavation be cleaned of all trash, debris and unsuitable material.

B. Where self-propelled or power mechanical compaction is used, the uncompacted thickness of each lift of structural backfill or imported fill shall not be more than 12 inches. Where hand-operated mechanical compaction is used, the structural backfill shall be placed in thinner layers of not more than six inches such that the specified degree of compaction is attained.

Recreation Site Improvements DIVISION 2 Section 02200-3

Angeles National Forest

C. Rollers shall not be operated within two feet of structural walls unless otherwise approved by the Contracting Officer. Care shall be exercised in placing backfill to avoid damage to conduit and piping systems.

D. Fill material shall be placed and compacted at a moisture content suitable for compaction.

No fill material shall be placed when free water is standing on the surface of the area where any point of the surface of the fill is to be placed and compacted. Any fill containing organic materials or other unacceptable material previously described shall be removed and replaced with approved fill material prior to compaction.

E. Unless otherwise specified, all backfill not accessible to roller compactions shall be compacted by power tampers or vibratory compactors or other approved means to the same degree of compactions specified for roller compaction.

F. In areas where field density test results indicate less than the required degree of compaction, or in areas where previously accepted compaction has been disturbed, the backfill shall be replaced and/or compacted to obtain the required results at no additional cost to the Government.

G. If in the process of fulfilling the backfill requirements of this specification, a deficit of material results, the Contractor shall import and place suitable materials as specified elsewhere herein.

3.05 Dewatering: See Section 02142.

A. The contractor shall maintain all excavated and general site areas free of water at all times.

Grading, drainage ditches, dikes and any other necessary work shall be undertaken to divert rainfall or other surface water from the excavation. Concrete curing water or water from other construction operations shall not be allowed to accumulate in the excavation during foundation construction.

B. Water pumped from the excavation shall be disposed of in such a manner as will not cause nuisance, erosion, health, or safety problems.

3.05 Temporary Bracing: Temporary bracing shall be employed by the contractor to protect all excavation against movement and caving of soil. Proper sloping of the sides of excavations may be used if adequate for this purpose.

3.06 Grading: All areas covered by the project, including excavated and filled areas and adjacent transition areas, shall be uniformly graded so that finished surfaces are at the elevations SHOWN ON THE DRAWINGS. Areas to receive future topsoil shall be graded to allow for such material in the finished elevations. Finished surfaces and surfaces to receive paving and aggregate base shall be reasonably smooth, compacted and free from surface irregularities that would affect drainage. Grades shall not vary more than 0.10 foot from the established grades. Ditches, gutters and swales shall be furnished to permit proper surface drainage.

Recreation Site Improvements DIVISION 2 Section 02223-1

Angeles National Forest

SECTION 02223

STRUCTURAL EXCAVATION AND BACKFILL

PART 1 - GENERAL

1.01 Scope:

A. This work consists of excavating and backfilling for the construction of installation of all structures.

B. This work shall include all necessary bailing, draining, sheeting, and bracing. This section shall also include clearing and grubbing the excavation areas to the clearing limits AS SHOWN ON THE DRAWINGS or staked on the ground.

PART 2 - PRODUCTS

2.01 Fill Materials:

A. General: Backfill shall be made from non-select or surplus select materials.

B. Non-select Backfill: Material shall be native, and a non-expansive and predominantly granular soil or soil-rock mixture free from organic matter and deleterious substances, and shall not contain materials over 6 inches in greatest dimension. Materials having a dimension greater than 4 inches shall not be used in the upper 6 inches of fill.

C. Select Backfill Material: Select backfill material shall be native or other approved material.

It shall be free of organic, vegetative or other deleterious material. It shall contain no lumps or particles larger than ½ inch and only 30 percent of the material shall exceed ¼ inch.

Material shall be obtained by screening of excavated or borrow material, or form an approved source.

D. Sand Cushion: The 2-inch layer of sand under slabs shall be composed of a dry natural mineral, free from organic material and deleterious substances. Material passing No. 200 sieve shall not exceed 45 percent.

2.02 Water: Reference Section 01600.

PART 3 - EXECUTION

3.01 Excavation:

A. Trenches or foundation pits for structures or their footings shall be excavated to the lines and grades or elevations AS SHOWN ON THE DRAWINGS or as staked on the ground. The elevations or the bottoms or the footings, AS SHOWN ON THE DRWINGS, shall be considered as approximate only, as finished elevations above grade shall control.

Recreation Site Improvements DIVISION 2 Section 02223-2

Angeles National Forest

Boulders, logs, or any other objectionable material encountered shall be removed. All rock or other hard foundation material shall be cleaned of all loose material and cut to a firm surface, either level, stepped or serrated. All seems or crevices shall be cleaned out and grouted. All loose and disintegrated rock, and thin strata, shall be removed.

B. Excavation for formed concrete shall be of sufficient width to allow for construction and removal of forms.

C. Excavation for on-grade slabs shall be of sufficient to allow for sand or gravel bedding material AS INDICATED ON THE DRAWINGS.

D. Where sub-grade soils, which are expansive in nature, occur beneath foundations and slabs, they shall be maintained in a moist condition and not allowed to dry out and crack prior to covering with foundation or slab. Where necessary, such soils shall be slowly and uniformly moistened as required to close any shrinkage cracks and to minimize expansion of soil subsequent to construction.

E. Excavations over 5 feet in depth shall be sheeted and shored as required in Section 02142, and in compliance with all applicable safety regulations.

F. Water, when encountered in excavation, shall be removed in accordance with Section 02161,

3.02 Approval of Foundation: After each excavation is completed, the Contractor shall notify the Contracting Officer. No further work shall be performed until the excavation and the foundation are approved.

3.03 Backfill:

A. All cut surfaces which form structures or other foundations, shall be scarified 6 inches deep, or as otherwise specified, and compacted. The moisture content of the material to be compacted shall be adjusted, if necessary, to obtain sufficient moisture for compaction.

All scarified foundations shall be compacted to not less than the minimum percentages as shown below, of the maximum dry density as determined by AASHTO T-180, test method C, including a rock correction factor.

1. Scarified foundations – 95 percent

2. Structural backfill – 95 percent

3. Select trench backfill – 85 percent

4. Non-select backfill – equal to or greater than density of adjacent material.

B. After a structure has been completed, the areas around the structure shall be filled with select material placed in vertical layers not over 8 inches in depth, and compacted to the level of the original ground face, or to finished grade AS SHOWN ON THE DRAWINGS. Proper precautions shall be used to insure that the backfill construction does not cause movement of or undue strain on any structures.

Recreation Site Improvements DIVISION 2 Section 02223-3

Angeles National Forest

C. All suitable excavated material shall be utilized as backfill or embankment. Excess material, shall be disposed of in accordance with Section 01800. No excavated material shall be deposited at any time so as to endanger the partly finished structure, either by direct pressure, or by overloading bank contiguous to the operation or in any other manner. No backfilling shall be placed against any structure until permission is given by the Contracting Officer. In the case of concrete or other masonry, such permission will not be given until the masonry has been in place 14 days.

Recreation Site Improvements DIVISION 2 Section 02224-1

Angeles National Forest

SECTION 02224

SITE DEVELOPMENT AND GRADING

PART 1 - GENERAL

1.01 Scope: This work shall consist of all grading and earthwork necessary for site walkway and pad construction, or any incidental grading work. It shall also include necessary sub-base preparation.

A. All earthwork shall be in accordance with the requirements and specifications of the sections for earthwork and for trench excavation and backfill.

PART 2 - PRODUCTS

2.01 General: All products shall be those indicated or specified in other sections.

2.02 Borrow: Borrow material shall be from a local source. A commercial source may be used if adequate local material is not available. Furnish well-graded granular materials that conform to

AASHTO M 145.

PART 3 - EXECUTION

3.01 General: Work shall be done AS SHOWN ON THE DRAWINGS and in full accordance with the specifications for earthwork, and others as applicable

3.02 Sub-Base Preparation and Replacement of Unsuitable Materials: Work shall consist of a minimum 4 inch depth or as otherwise shown or specified, of scarification in place, and re-compaction to no less than 90 percent or to 95 percent where so indicated on the drawings.

3.03 Suitable Excavated Material: Use all suitable excavated material in the construction of embankments, sub-grades, shoulders, slopes, bedding, and backfill for structures and other purposes, as SHOWN ON THE DRAWINGS.

Recreation Site Improvements DIVISION 2 Section 02235-1

Angeles National Forest

SECTION 02235

COMPACTED AGGREGATE BASE

PART 1 - GENERAL

1.01 Work:

A. This shall consist of furnishing, hauling, and placing aggregate base or surface course on the subgrade or base.

B. The Contractor shall conduct required tests for Compaction Method C or Method D as applicable.

C. Testing frequency shall be as indicated below. Repeat test shall be conducted in any areas where test results indicate noncompliance with specification requirements. All tests shall be conducted under the direction of a registered engineer or certified testing laboratory.

Type of Test Frequency

Moisture Density Relationship 1 for each material, by source, gradation, and type

Density of Aggregate In-Place 3 per each 100 feet

PART 2 - PRODUCTS

2.01 Source:

A. Materials shall be obtained from approved commercial sources.

B. For commercial sources, the Contractor shall submit test results and a Certificate of Compliance that states that the aggregate meets the contract requirements.

C. Sampling and testing of the material before incorporation in to the work shall be in accordance with AASHTO requirements and shall occur as follows:

1. For commercially produced aggregates: at the produce’s…