4. Project Specifications - Scenic Byway Recreation Site Rehab.pdf

GAOA SCENIC BYWAY RECREATION SITES REHABILITATION

TECHNICAL SPECIFICATIONS

1010 SUMMARY OF WORK

FIELD ENGINEERING

REGULATORY REQUIREMENTS

SHOP DRAWINGS AND SUBMITTALS

SCHEDULES AND REPORTS

QUALITY CONTROL AND QUANTITY MEASUREMENT

MOBILIZATION

1507 TEMPORARY FACILITIES AND UTILITIES

MATERIAL SOURCES

PRODUCT HANDLING

CONTRACT CLOSEOUT AND CLEANUP

CLEARING AND DEMOLITION

EARTHWORK

HARDENED AGGREGATE SURFACE AND AGGREGATE BASE

ROCK RIPRAP

ASPHALT CONCRETE PAVEMENT

ASPHALT CONCRETE CURB AND CURB OUTLET

TRAFFIC MARKING

CORRUGATED METAL PIPE CULVERT

ROCK LINED DITCH

TOILET BUILDINGS

ROCK AND POST BARRIERS

GATES

FENCE

CAMPSITES

OUTDOOR RECREATION ACCESS ROUTES (ORARS)

BENCHES

PICNIC TABLE

FIRE RINGS

FOOD LOCKER

PEDESTAL GRILL

SERVICE TABLE

STONE FIRE RING

D-i

TRASH ENCLOSURE

WHEEL STOPS

SIGNS

CONCRETE FORMWORK

CONCRETE REINFORCEMENT

PORTLAND CEMENT CONCRETE

EXPOSED AGGREGATE CONCRETE

PAINT

D-ii

1010 SUMMARY OF WORK

SCOPE

The requirements of these Technical Specifications cover the Recreation Sites, vista points and Campgrounds Rehabilitation Project. This project consists of furnishing all labor, equipment, materials, and incidentals necessary to conduct clearing and grubbing, demolition and removal of existing facilities, excavation, rehabilitation and new construction of campsites, including single, double, and group site, construction of tent pads and outdoor recreation access routes (ORARS), installation of vault toilet buildings, placement of additional aggregate base material, re-grading of base material, placement of new concrete, painted traffic markings, installation of facility signs, installation of picnic tables, service tables, fire rings, food storage lockers, installation of wheel stops, furnish & installation of aggregate base, and all other aspects shown on the project plans.

STORAGE AREAS

The project is within a high use recreation area. The Contractor will be required to restore these areas to their original conditions as outlined in Section 1700. Storage of materials and equipment will be allowed only in areas identified by the Forest Service.

TRAFFIC

1. Traffic Control: When possible, the contractor will be allowed to close gates on Campgrounds, in all other areas the contractor shall install signs according to the Manual on Uniform Traffic Control Devices (MUTCD).

2. Traffic Safety: Safety precautions shall be in accordance with the latest edition of the State of California Construction Safety Regulations.

3. Equipment Cleaning: All equipment shall be free of noxious weeds, free of soil, seeds, vegetative matter, or other debris that could contain or hold seeds. All equipment shall be inspected before entering the Forest and cleaned on each location before working on a different area within the Sierra National Forest.

CLOSURES

The project area will be CLOSED to public use, including camping during the approved

Contract Time. This will not prevent recreational uses by persons, such as hiking, walking, fishing, swimming, etc. which may occur during the duration of the contract time. It is the contractors’ responsibility to ensure the safety of the public on the jobsite at all times.

MAINTAINING UTILITY SERVICE

1. Electrical: Contractor shall notify the Forest Service 72 hours in advance of any utility service interruption.

2. Water: Contractor shall notify the Forest Service 72 hours in advance of any utility service interruption.

3. Identifying the location of all existing underground utilities shall be the responsibility of the Contractor. Any damage to existing utilities that occur shall be the responsibility of the Contractor.

ENCROACHMENT PERMIT

Any additional permits which may be required from utility companies shall be the responsibility of the Contractor (refer to FAR 52.236-7).

PROTECTION OF LAKES AND STREAMS

All lakes and streams in the Project Area shall be protected by the Contractor in accordance with requirements of the California Department of Fish and Game and the

California Water Quality Control Board. All water encountered during the construction of this Project shall be discharged in conformance to these requirements (refer to

AGAR 452.236-74).

MEASUREMENT AND PAYMENT

No separate measurement or payment will be made for the work of this Section, all costs associated with the work, materials and full compliance of this section shall be included in other bid items and no separate payment shall be made therefore.

END OF SECTION 1010

FIELD ENGINEERING

GENERAL

SCOPE

This work shall consist of field engineering and survey work required in execution of the project. The work includes furnishing all labor, equipment, instruments, materials, transportation, and other incidentals necessary to complete the construction layout and staking in accordance with these specifications and acceptable engineering practice.

MEASUREMENT AND PAYMENT

This work is incidental and no payment will be made for the work described in this

Section.

• QUALITY ASSURANCE

Work shall be accomplished under coordination between contractor and Government representative.

PRODUCTS

STAKES

• Hubs: minimum 1” x 1” x 12”

• Lath: 3/8” x 1 1/2” x 48,” for identification and sight stakes.

EXECUTION

SITE IMPROVEMENT LAYOUT

Establish the site improvement layout from dimensions and benchmarks as SHOWN

ON THE DRAWINGS. It shall be the responsibility of the Contractor to maintain and preserve all stakes and other marks until necessary or authorized to remove them.

CONSTRUCTION STAKING

General

Campsites, tent pads, parking spurs, roads, other paving areas, access routes (ORARS), trash enclosures, culverts, finished grades, landscape features, appurtenances, and buildings shall match dimensions Shown on the drawings.

Spacing

Stake all corners of campsites, tent pads, and trash enclosures. For roadways, space edge of pavement stakes longitudinally every 50 feet along tangents and every 25 feet along curves. For parking spurs and other paving areas, stake all angle points and edge of pavement limits as specified for roadways above. ORARS centerlines shall be staked at spacing as specified for roadways above.

Staking Structures, Bridges and Slabs

Structures shall be staked on two sides with two permanent offsets each way perpendicular to the structure corner and two permanent offsets in line with the sides of the enclosing two sides of the structure.

Staking Culverts

Slope stakes and slope reference stakes shall be set at all culvert locations. A culvert reference stake shall be set on the centerline of the culvert 10 feet from each end.

Record the vertical and horizontal distance from the reference stake to the culvert invert at both ends.

Stake Approval

Construction work shall not begin until the stakes, marks, and controls established by the Contractor have been approved in writing by the Forest Service.

Approval of the construction staking will not relieve the contractor of the responsibility for maintaining the survey work and for correcting errors, whether the errors are discovered during the actual survey work or in subsequent phases of the project.

END OF SECTION 1050

REGULATORY REQUIREMENTS

GENERAL

SCOPE

This Section describes the Regulatory Requirements and the Codes and Standards that apply to the work in this contract.

REGULATORY REQUIREMENTS

A. All laws, ordinances, codes, and regulations 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. American Society for Testing Materials (ASTM).

2. American Water Works Association Standards.

3. Forest Service Handbook 6709.11 Health and Safety Code

Handbook.

4. International Association of Plumbing and Mechanical Officials.

5. International Code Council (ICC).

6. Manual on Uniform Traffic Control Devices.

7. Manufacturer’s Instructions.

8. National Electrical Code (NEC).

9. National Sanitation Foundation.

10. State of California Construction Safety Orders.

11. Underwriters Laboratory.

12. California Building Code, (CBC), latest edition.

13. California Building Code Standards.

14. Uniform Plumbing Code (UPC).

15. Uniform Fire Code (UFC).

16. Uniform Fire Code Standards.

17. Underwriters’ Laboratories (UL).

18. Uniform Federal Accessibility Standards (ADAAG).

CODES AND STANDARDS

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

DUTIES OF THE CONTRACTOR

A. Responsibilities. It is the duty of the Contractor to perform all work in accordance with the approved plans, specifications and regulations required for completion, during the term of this contract.

B. Performance of the work: The Contractor shall study carefully 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 Specifications shall be promptly called to the attention of the Forest Service. Local conditions which may affect the construction operations shall likewise be brought to the attention of the Forest Service at once. In no case, however, shall the instruction of the Forest Service be construed to cause work to be done which is not in conformity with the approved plans, specifications and change orders.

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

Forest Service.

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 submitted in writing by the Contractor.

Substitution of materials shall be considered a Contract Change and will be subject for approval by the Forest Service prior to use or fabrication.

PRODUCTS

PRODUCTS AND MATERIALS

All products and materials incorporated into this contract shall meet the standards and requirements of the codes and standards as referenced in Part 1 – General of this

Section, and elsewhere herein unless otherwise SHOWN ON THE DRAWINGS, the more stringent requirements shall take precedence within the codes and standards that govern this Contract.

All materials, unless specified otherwise, shall be handled, stored, installed, and maintained in accordance with the manufacturer’s instructions and recommendations.

EXECUTION

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.

END OF SECTION 1060

SHOP DRAWINGS AND SUBMITTALS

SCOPE

A. Perform all work necessary and required for the construction of the project as indicated. Such work includes but is not limited to the following:

1. Shop Drawings

2. Samples

3. Catalog Data

4. Operation and Maintenance Manuals

5. Certificates and Warranties

SUBMITTALS

Submittals shall include all pertinent data required to understand the quality of components, dimensional relationships, integration 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.

EXECUTION

SUBMITTALS

Submittals and shop drawings shall be submitted in a timely fashion to allow ten (10) working days for review by the Forest Service. No work shall begin until shops drawings and submittals are approved. TWO (2) copies of all submittals shall be submitted to the Forest Service. Contractor has the option to submit electronically with cover page.

SHOP DRAWINGS

A. Original Submittal: TWO (2) legible copies of all shop drawings shall be submitted for approval as required under 1300.2.1 above prior to fabrication, installation or order placement to allow for checking and coordination. If approved, the submittal summary and only ONE (1) copy of the shop drawings will be returned to the contractor.

B. Resubmittal: When a resubmittal is required, the submittal summary and only ONE (1) copy of the shop drawings indicating so will be returned to the Contractor. After revision of the original, TWO (2) copies shall be resubmitted for approval. Contractor has the option to submit electronically.

C. Approval: Once approved, the submittal summary and only ONE (1) copy of the shop drawings will be returned to the contractor. Variation from the approved documents shall be likewise submitted and approved before being carried out. Approval of satisfactory submittals and substitutions will be made within 10 working days of receipt.

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 resubmittals 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 Forest Service until completion of the work. When requested, all approved samples will be returned for installation providing identity is maintained in an approved manner until final acceptance of the project.

CATALOG DATA

A. Submittals: TWO legible copies of catalog data are required for the original submittal and each resubmittal. Catalog data shall be submitted along with shop drawings. Contractor has the option to submit electronically. Only

ONE (1) copy of the shop drawings will be returned to the contractor.

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

IDENTIFICATION

A. Catalog Data: Each separate catalog brochure or 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 one or more of the multiple items are not approved in any submittal, the additional copies required will not be requested until all items are approved.

END OF SECTION 1300

SCHEDULES AND REPORTS

SCOPE

This Section includes the requirements for the submittal of the Contractor’s proposed work schedule for the project.

EXECUTION

WORK SCHEDULE

Within fifteen (15) working days of the issuance of the Notice to Proceed, the

Contractor shall submit to the Forest Service for approval a proposed work schedule for the project. It shall be the contractor’s responsibility to follow this schedule as closely as possible.

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.

Include in the critical path schedule time for submissions and approval of substitutions as well as tests and inspections.

END OF SECTION 1315

QUALITY CONTROL AND QUANTITY MEASUREMENT

GENERAL

DESCRIPTION

This work shall consist of providing certification that the quality and quantity of construction conforms to the drawings, specifications, and requirements of the contract.

EXECUTION

CONSTRUCTION REQUIREMENTS

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 these specifications.

Each certificate shall apply to a single commodity or invoice. Incidental purchases needed to remedy minor shortages of material shall be certified by the Contractor.

Sampling, Testing and Inspection

The Contractor shall provide and maintain appropriate measuring and testing devices, equipment, and supplies to accomplish the required measurement, testing and inspection in a timely manner. Tests, measurements, and certifications shall be made as required by the drawings and specifications. The Contractor shall take samples and perform inspections and tests necessary to achieve the quality of construction required by the contract. Sampling and testing frequency for specific items shall be as shown on the drawings or in these specifications, or as noted below:

1. Cast-In-Place Concrete: Contractor shall test for compressive strength, air content, and slump, and as required to meet specifications of Section 3300.

2. Excavation and Embankment (including trenching operations): Contractor shall test for moisture density, and in place density and compaction, and as required to meet the specifications of Section 2200.

3. Asphalt Concrete: Contractor shall test for aggregate gradation, compaction, thickness and temperature, and as required to meet the specifications of Section

2513.

4. Aggregate Base: Contractor shall test for field density, and as required to meet the specifications of Sections 2340 and 2513.

Records

1. Record Drawings: The Contractor shall maintain a set of the contract drawings depicting as-built conditions resulting from Forest Service-authorized changes. The drawings shall be maintained in a current condition. GREEN pencil shall be used to indicate deletions; RED to show addition and changes. TWO (2) complete sets of “as-Built” drawings, fully marked-up, shall be submitted to the Forest Service within one week after acceptance of the Work, or retention payment may be withheld.

END OF SECTION 1442

MOBILIZATION

DESCRIPTION

This work shall consist of obtaining all bonds, insurance and permits, preparatory work and operations necessary for the movement of personnel, equipment, supplies, and incidentals to the project site, and for 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 including temporary facilities and utilities.

MEASUREMENT AND PAYMENT

Measurement and/or payment will be made for the work described in this Section, as shown on the schedule of items under the titles:

• MOBILIZATION

END OF SECTION 1505

1507 TEMPORARY FACILITIES AND UTILITIES

1507.1 GENERAL

1507.1.1 SCOPE

A. The work of this Section includes providing all temporary facilities and controls needed for the project. The Contractor shall furnish all equipment, labor, materials and incidentals necessary to hook-up, install and maintain the facilities. Such facilities include but are not limited to:

1. Sanitary facilities.

2. Directional signs, safety signs and barricades.

3. Temporary utilities such as power, water, electricity, and telephone service.

1507.1.2 QUALITY ASSURANCE

1. OSHA Compliance: Comply with Occupational Health and Safety

Requirements for Construction (29 CFR 1926).

2. Hazardous Materials Compliance: For hazardous materials regulated by

OSHA see 29 CFR Part 1910, Subpart Z.

1507.2 PRODUCTS

1507.2.1 WATERING EQUIPMENT

Watering equipment, including piping, shall be watertight. Tanks shall be of known capacity. Equipment used for dust control and finishing operations of subgrade and surfaces shall provide uniform and controlled application of water from the driver’s position at all times.

1507.3 EXECUTION

1507.3.1 SANITARY FACILITIES

A. The Contractor shall provide temporary sanitary facilities for all workers and maintain the facilities in a clean and sanitary state.

B. At no time shall the Contractor use any of the existing sanitary facilities within, or adjacent to the project site.

1507.3.2 REMOVAL

The Contractor shall remove temporary facilities and controls as progress of the work will permit or as directed by the Forest Service.

1507.3.3 FENCES

Temporary fences will be permitted for securing materials, equipment, vehicles, tools, for protection of work, and protection for the public.

1507.3.4 OPERATIONS AND STORAGE AREAS

Operations and storage areas shall be restricted to the project site, AS SHOWN ON

THE DRAWINGS or approved by the Contracting Officer. All disturbed areas shall be rehabilitated and match conditions prior the contract.

END OF SECTION 1507

MATERIAL SOURCES

BORROW SOURCE

No borrow sites have been identified for the project. In the event the contractor proposes to use a borrow site, the contractor shall provide the Forest Service with the following submittals:

• Location of borrow site

• Material to be obtained

• Location and purpose for use of borrow material

• Material samples and/or test results of borrow material in accordance with the sections of these specifications for intended use

• Authorization from the land owner

• Valid permit documentation for grading operation to remove such material

• Any other items, tests and/or studies required for the Forest Service to make an educated decision on use of the material

No borrow material can be used on the project until the material has been reviewed and

APPROVED by the Forest Service.

After borrow excavation is completed, the excavation site shall be dressed to uniform slopes providing adequate drainage, the bottom smoothed to reduce erosion potential, erosion control devices installed as directed by Contracting Officer.

END OF SECTION 1605

PRODUCT HANDLING

GENERAL

DESCRIPTION

Work included: Contractor shall protect products scheduled for use in the work by means including, but not necessarily limited to those described in this Section.

TESTING LABORATORY RECOMMENDATIONS

A. Except as otherwise approved by the Forest Service, Contractor shall determine and comply with testing Laboratory’s recommendations on product handling, storage and protection.

B. Facility and Equipment: The Contractor shall provide, install, maintain, and operate a complete and adequate facility for the handling, execution, disposal, and distribution of all material and equipment required for the proper and timely performance of all work connected with the Contract.

PACKAGING

A. Delivery and Storage: Deliver all manufactured materials in the original packages, containers, or bundles (with the seals unbroken) bearing the name or identification marks of the manufacturer.

Maintain packaged materials with seal unbroken and labels intact until time of use.

Promptly remove damaged material and unsuitable items from the job site, and promptly replace with material meeting the specified, requirements, at no additional cost to the Forest Service.

B. The Forest Service will reject all non-complying materials and products that do not bear identification satisfactory to the Forest Service as to grade, quality, or other pertinent information.

PROTECTION

Contractor shall protect finished surfaces until accepted by the Forest Service.

Store all materials in such manner as necessary to properly protect same from damage.

Materials shall be transported and handled to preserve their quality and fitness for the work. Materials or equipment damaged by handling, weather, dirt, or from any other cause will not be acceptable.

Aggregates shall be stockpiled, loaded, and transported in a manner that will preserve specified gradation and avoid contamination. Stockpiles of aggregate having different gradations shall not be intermingled.

Store material off sidewalks, roadways, and underground services. The Contractor shall be responsible for protecting all material and equipment furnished under the Contract.

REPAIRS AND REPLACEMENTS

A. In event of damage, Contractor shall promptly make replacements and repairs as directed by the Forest Service, and at no additional cost to the

Forest Service.

B. Additional time required to secure replacements and to make repairs will not be considered by the Forest Service to justify an extension of the

Contract time.

SUBSTITUTION OF MATERIALS

When a specific manufacturer, trade name or material is specified, or indicated, it is to establish a standard of quality and shall not be construed as limiting competition. If the

Contractor desires to use a manufacturer, trade name or material other than that specified, he shall request approval of such substitutions, in writing, to the Forest

Service. Submittals for approval of substitute manufacturer, trade name or materials should contain sufficient information, descriptive brochures, drawings, samples or other data as necessary to provide direct comparison to the specified products. Each submittal shall be well marked and identified as to the type and kind of items being submitted for approval. It is the sole responsibility for the Contractor to submit complete descriptive and technical information so that the Forest Service can make proper appraisal. Lack of proper information will be sufficient cause for rejection.

References to catalogs that the Forest Service may or may not have, will not be accepted.

Substitutions shall not be offered unless a thorough check is made of all related items and interferences, revised arrangements and other changes that may result. Prepare drawings of revised equipment and piping arrangements caused by substitutions. Such drawings shall be equal in quality to Contract Drawings. The cost of supplying drawings shall be included by the Contractor in his estimate of proposed substituted materials.

By offering a substitution the contractor shall accept responsibility for its effect on the work of all trades, including any possible delays in the completion time of the Project.

All costs of changes in the work of other trades and drawings, etc., affected by inclusion of Contractor requested substitution shall be paid by the Contractor requesting approval of such substitution.

It shall be the Contractor’s responsibility to ensure that substitutes perform in accordance with the design intent of the specified product. Certification to that effect shall be required as part of the approval.

Unless specifically submitted and approved in accordance with above, substitutions will not be allowed.

END OF SECTION 1640

CONTRACT CLOSEOUT AND CLEANUP

SCOPE

This section includes the requirements covering the disposal of excess material resulting from construction operations and the cleanup work required in areas affected by the construction, and the protection of existing resources, structures, improvements, and utilities.

PRODUCTS

CLEANING SUPPLIES

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

EXECUTION

EXCESS MATERIALS AND REFUSE

All refuse and unused materials generated by the Contractor’s operations including wood, asphalt, concrete, vegetative materials and the like, shall be removed from the project site and disposed outside the National Forest lands in accordance with Federal, State and Local regulations and/or as directed by the Forest Service.

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 floor space or walking surface that may cause the tripping or sliding of workers, ladders, or equipment.

PROTECTION OF EXISTING RESOURCES, STRUCTURES,

IMPROVEMENTS, AND UTILITIES

(a) The Contractor shall preserve and protect all existing vegetation and landform on or adjacent to the work sites, which are not to be removed, and which do not unreasonably interfere with the work required under this contract.

(b) The Contractor shall protect from damage all existing structures, improvements, and utilities (1) at or near the work site and (2) on adjacent property of a third party, the locations of which are made known to or should be known by the Contractor. The

Contractor shall repair any damage to those facilities, including those that are the property of a third party, resulting from failure to comply with the requirements of this contract or failure to exercise reasonable care in performing the work.

(c) If the Contractor fails or refuses to repair the damage promptly, the Contracting

Officer may have the necessary work performed and charge the cost to the Contractor.

FINAL CLEANUP

Immediately prior to the Contractor’s request for final inspection of the Project, final cleanup shall be performed.

QUALITY OF CLEANUP

In addition to the normal “broom clean” requirements, the exposed surfaces of the following materials shall be cleaned as listed below:

A. Painted Surfaces: Remove marks, stains, fingerprints and dirt. All cleaned and new surfaces shall appear to be the same. C. Roof: Remove all dust, dirt and debris.

D. Site: Remove all trash, debris and surplus excavated material of off National

Forest lands. No items shall be left or discarded elsewhere on the site. The surplus excavated material shall be removed to a proper disposal location off of the site designated by the Forest Service.

SALVAGEABLE ITEMS

A. All salvageable items shall remain the property of the SNF, and shall be removed by the contractor and stored on designated Government land as directed by the Forest Service.

B. Items not salvageable shall be disposed of by the contractor in accordance with Local, State and Federal regulations.

END OF SECTION 01700

CLEARING AND DEMOLITION

GENERAL

SCOPE

This work shall consist of all site clearing and demolition required to complete the

Project as shown on the plans, indicated in these specifications or as directed by the

Forest Service. The work includes but is not limited to; removal and disposal of any required vegetation including merchantable timber, stumps, asphalt pulverizing, concrete pavement, buildings, building foundations, toilet vaults, piping, solar panels, signs, picnic tables, fire rings, and any other campground facilities. Inorganic material is the responsibility of the Contractor and shall be removed from Forest Service lands, in accordance with Federal, State and local regulations.

The Contractor and Forest Service shall identify in the field the locations of the existing items to be removed and disposed.

MEASUREMENT AND PAYMENT

Measurement and/or payment will be made as shown on the schedule of items under the titles:

• CLEARING AND/OR DEMOLITION (e.g., any required vegetation, facilities, concrete pavement, asphalt pulverizing, toilet vaults, etc.)

EXECUTION

VEGETATION CLEARING AND TREE REMOVAL

A. There are no trees shown on the plans to be removed as a direct result of the construction related activities. While every effort has been made to pre-determine and identify the trees that need to be removed, once site work commences, construction related activities may identify additional trees that need to be removed. These trees will require complete stump removal and will have a unique color/symbology identifier painted on them. The stumps shall be removed to a depth of 4 feet or to a depth required to remove all roots 1-1/2" diameter or larger. Stump removal includes backfilling the hole back to existing grade.

B. There are no stumps shown on the plans to be removed as a direct result of the construction related activities. While every effort has been made to predetermine and identify the stumps that need to be removed, once site work commences, construction related activities may identify additional stumps that need to be removed. The stumps shall be removed to a depth of

4 feet or to a depth required to remove all roots 1-1/2" diameter or larger. Stump removal includes backfilling the hole back to existing grade.

C. In case that trees or stumps are required to be removed, all trees, stumps, and slash shall be removed off the project site and disposed of off National

Forest lands in accordance with State and Local regulations and/or as directed by the Forest Service.

D. Remove all grass, weeds and natural vegetation, including trees less than

10” diameter, in designated areas to a minimum depth of 4”. Branches on remaining trees and shrubs shall be trimmed to give a clear height of 14 feet above roadbed. Tree limbs shall be trimmed as near flush with the trunk as practicable.

E. Soil Litter: Accumulations of vegetative materials lying on top of the min-eral soil (i.e. pine needles and duff) shall be removed.

F. All cut true fir or pine stumps greater than 15" diameter shall be treated with an EPA registered borax fungicide, such as Sporax for the prevention of the spread of annosum root disease. Sporax would be applied by hand in an approved granular form within one hour of stump creation. The fungicide shall not be applied when it is raining. All Forest Service policies and practices and California regulations related to pesticide use would be followed including developing a spill plan for Sporax use.

DEMOLITION

This pay item on the schedule of items shall include any and all demolition listed below, as shown on the plans or directed by the Forest Service. This work shall be completed in accordance with Federal, State and local regulations.

TOILET BUILDINGS AND VAULTS

All existing toilet buildings are proposed to be removed and replaced as part of this project. All removal and disposal of these facilities shall be in accordance with these technical specifications and all local, state and federal regulations.

The Contractor shall provide five (5) working days’ notice prior to beginning of demolition of the toilet buildings. The Contractor shall have the vaults pumped dry by a commercial firm possessing a valid license and wastes disposed of in a state approved disposal site.

Once the vaults have been pumped, the Contractor shall sever any connection pipes and begin demolition of the structure.

Remove existing building structures and foundations as shown on the drawings.

Foundation walls and concrete slabs shall be removed to full depth. The floor slabs and related pads shall be broken into sizes not exceeding 8” in any one direction.

When applicable the top 2' feet of the walls of the vault along with the tops, shall be broken into pieces not to exceed 8" in any one direction. The floor of the vault shall be punctured or cracked to allow for sufficient natural drainage of groundwater. The slab and upper vault pieces shall be layered horizontally in the bottom of the vault or tank.

The vault shall be filled with native soil, free of trash and debris, rocks over 2” in diameter, and roots or other organic matter. The fill shall be placed in horizontal layers not exceeding 8” loose depths, and compacted to 90% of AASHTO T-99.

If new structure is to be located on top off existing toilet vaults, all parts of the vault or tank and contaminated soil must be removed and disposed of off Forest Service lands, in accordance with State and local regulations.

The Forest Service shall be present to observe all tank abandonments. All vault abandonment locations shall be noted on the AS-BUILT drawings.

UTILITIES

All below-grade utility services not designated to remain shall be disconnected, capped and plugged, and location noted on the AS-BUILT drawings.

All above-grade utilities not designated to remain shall be removed and disconnected, capped and plugged below grade to a depth of 2 feet or to the lateral connection, whichever is less. The Contractor shall coordinate with the affected utility companies prior to starting work.

CAMPSITES

All campsites within the project area are proposed to be rehabilitated or reconstructed.

The rehabilitation will be as shown on the plans and as described in these technical specifications and shall include the following items to be removed and salvaged or removed and disposed of in accordance with local, state, and federal regulations:

• Existing fire rings and foundations

• Existing barrier posts

• Existing picnic tables including anchors

• Any other and all man-made articles within the campsite area, or any other item as directed by the Forest Service.

TRANSPORTATION

All materials designated to be salvaged shall be carefully removed. The materials shall be delivered to the location as directed by the Forest Service, and neatly stacked. The

Contractor shall coordinate the transportation and delivery of these materials with the

Forest Service a minimum of 5 working days prior to the proposed moving date.

DISPOSAL

All demolition materials, not designated for salvage, shall be disposed of off National

Forest lands, in accordance with State, local and federal regulations. Burning of removed materials will not be permitted on the project site.

END OF SECTION 2100

EARTHWORK

SCOPE

This work consists of all excavation, compaction, grading, trenching, fill, and backfilling for all parking areas, roadways, building pads, outdoor recreation access routes (ORARS) and miscellaneous site items.

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.

VERIFICATION OF CONDITIONS

The Contractor shall carefully examine existing conditions and information, shall become familiar with 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, prior to beginning work.

MEASUREMENT AND PAYMENT

No separate measurement or payment will be made for the work of this Section, all costs associated with the work, materials and full compliance of this section shall be included in other bid items and no separate payment shall be made therefore.

PRODUCTS

SITE BORROW MATERIAL

Imported borrow material shall be non-expansive and predominantly granular soil or soil rock mixture which is free from organic matter and other deleterious materials and rocks over 3 inches in diameter. Any borrow source location proposed to be used by the contractor will be designated by the contractor and reviewed and approved by the Forest Service in accordance with other sections of these Technical Specifications, see Section 1605

BACKFILL MATERIAL - STRUCTURES

A. General. All fill material shall be approved by the Forest Service.

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 greatest dimension. Material having a dimension greater than 1-1/2 inches shall not be used in the upper six inches of fill. Liquid limit shall not exceed 20; plasticity index in accordance with ASTM D4318; sieve analysis in accordance with ASTM

C136.

B. Material for use behind retaining walls and exterior foundation walls as compacted backfill shall consist of approved sound, hard, durable, wellgraded sands and gravels.

C. Material for use as building and foundation subgrade compacted backfill shall consist of approved well-graded, clean sands and gravels.

BACKFILL MATERIAL - TRENCHES

Trench Backfill Materials are designated ON THE DRAWINGS and shall be as follows:

A. Native Backfill Materials: Excavated native material with all organic and

4 inch oversize material removed.

B. Select Native Backfill Material: Excavated native material with all organic and 2 inch oversize material removed.

C. Sand Bedding Material: Shall conform to the Table below:

SIEVE SIZE PERCENT PASSING

3/8 inch -

No. 4 100%

No. 8 90 – 100%

No. 30 10 – 30%

No. 200 2 – 9%

ROCK BASE FOR SLABS ON GRADE

Aggregate material shall be crushed stone or gravel free of organic matter and other deleterious materials. Material shall be graded as follows:

SIEVE SIZE PERCENT PASSING

1 inch 100%

3/4 inch 90-100%

No. 4 0-10%

No.100 0-3%

VAPOR BARRIERS

Where vapor barrier is shown on the plans, it shall be 6 mil polyethylene sheeting.

EXECUTION

GENERAL

Contractor shall verify all actual site conditions, levels and grades prior to beginning work and inform the Forest Service as to any discrepancies that exist, prior to start of work.

EXCAVATION AND DISPOSAL

All excavations of every description and of whatever substances encountered shall be performed to the depth indicated on the drawings or staked on the ground. All materials shall be piled in an orderly manner a sufficient distance from the banks of an excavation to avoid overloading and to prevent slides or cave-ins. Any excess excavated material may be utilized in other work areas, provided it is suitable material. Sheeting and shoring should be used as is necessary for the protection of the work and for the safety of personnel. Excavations shall be by open cut. Whenever depth of excavation exceeds

5 feet, the surface shall be sloped back at a 1-1/2 to 1 slope or the excavation shall be shored, as per OSHA requirements.

SITE EXCAVATION

The existing surface materials shall be removed in accordance with Section 2100. All suitable excavated material remaining after the demolition is accomplished shall be used in the construction of subgrades, shoulders, slopes, bedding and backfill for trenches and structures and backfill of future landscape areas.

TRENCH EXCAVATION

A. Trenches shall be of the necessary width for properly laying utility lines.

Water line trenches shall be uniformly graded to avoid high points that would necessitate the placing of air valves in the water lines. Trenches shall be of a depth to provide the minimum cover over the utility line shown on the drawings.

B. All roots shall be cut and removed from trenches. Bottoms of trenches shall be accurately graded to an elevation 4 inches below the grade line of the proposed utility line. Care shall be taken not to over excavate. When unstable material that is incapable of properly supporting the utility is encountered in the bottom of the trench, such materials shall be excavated to a depth to allow for construction of a stable bedding. In all cases, where excavation is made below the indicated trench depths, such over excavation shall be backfilled with compacted granular material.

EXCAVATION FOR FORMWORK AND STRUCTURES

A. Excavation for slabs on grade shall be sufficient to allow for rock base, vapor barrier, sand, and slab thickness AS SHOWN ON THE DRAWINGS and as otherwise required.

B. Forest Service will not make payment on excavations beyond indicated limits unless such excavations are authorized by the Forest Service in advance of doing the work. Over excavation shall be restored to specified elevations with compacted backfill approved by the Forest Service. Over excavation below footings shall be filled with concrete poured integrally with the footing.

C. Excavated material not suitable for backfill shall be removed and disposed of off National Forest lands or as specified elsewhere herein.

D. All material to be excavated shall be unclassified and shall include earth fills, 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.

E. Unsuitable material not having the required bearing capacity AS SHOWN

ON THE 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 Forest

Service.

F. All roots shall be cut and removed from subbase of campsites and ORARS.

Bottoms of subbase of campsites and ORARS shall be accurately graded.

EXISTING UTILITY LINES

A. The Contractor’s attention is directed to the existence of pipe and other underground improvements which may or may not be shown on the drawings. All reasonable precautions shall be taken to preserve and protect any such improvements. The Contractor shall be responsible for contacting

Underground Service Alert (U.S.A.) 5 working days before excavating to locate utilities.

B. The Contractor shall be aware of the possible existence of underground utilities and improvements which may be in place but not shown on the drawings. If such are encountered the Contractor shall notify the Forest

Service immediately and take precautions to preserve and protect any such improvements until further instructions can be issued by the Forest Service.

C. Where existing utilities or improvements interfere with the work, they shall not be removed, relocated or otherwise disturbed unless authorized by the

Forest Service.

CONTROL OF WATER

Whenever subsurface water is encountered or surface water can enter an excavation, the Contractor shall furnish, install and maintain, and operate all necessary machinery, appliances, and equipment to keep the excavation free of water until the placing of the bedding material, laying and joining of the utility line, installation of tanks or structures, inspection and approval for backfill, is complete and all danger of flotation and other damages is removed.

SITE BACKFILL AND COMPACTION

Compact all subgrade areas to receive surfacing (asphalt concrete or concrete pads) to not less than 95 percent of AASHTO T-99, method C or D for a minimum depth of 2 feet below subgrade elevation. Areas identified for future landscaping shall be graded and wheel rolled.

A. The density of the material specified for compaction shall be determined during the progress of the work by AASHTO T-191 or T-205 or T-238.

Moisture of the fill material shall be determined by AASHTO T-217 or T239 or T-255. Adjustment for coarse particles will be made in accordance with of AASHTO T-224.

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 or reconditioned to obtain the required results at no additional cost to the Forest Service.

Reference Section 02340 for compaction requirements for campsites and ORARS.

BACKFILL FOR UTILITY TRENCHES

Trenches shall be backfilled AS SHOWN ON THE PLANS. The Contractor must obtain approval from the Forest Service prior to backfilling. Backfilling will not be authorized until the trenching, pipe, and pipe joints are inspected and conform in every way to these specifications.

Care shall be taken in the backfilling of sewer and drainage lines as to not to disturb their grade and alignment. Pipes shall first be backfilled by hand around their sides and to a minimum depth of 6 inches on top to ensure that the backfilling process does not disturb the alignment. In no case shall backfill be allowed to free fall directly onto the pipe.

The trench shall be backfilled with suitable material to the compaction hereinafter stated. No organic material shall be used in any backfill operation. If the trench is improperly backfilled, it shall be reopened to the depth required for proper compaction, then refilled and compacted as specified, at no additional cost to the Forest Service.

No self-propelled compaction equipment shall be used over utility trenches without prior approval from the Forest Service. The use of hydro-hammers for trench compaction will not be permitted.

Lower Portion of Utility Trench: Where specified sand bedding material shall be used to provide a four (4) inch minimum cushion below, adjacent to, and above the utility line AS SHOWN ON THE DRAWINGS. The sand bedding material shall be compacted to a density of at least 90 percent of maximum density, as determined by

AASHTO T-99 Method C. Bedding material shall be deposited in six-inch-maximum thickness layers.

Upper Portion of Utility Trench: Where specified four (4) inches of Sand backfill on top of the utility shall be used to provide protection. The remainder of the trench shall be backfilled with native backfill material. Backfill material shall be deposited in layers not to exceed eight inches. Unless noted otherwise on the drawings, minimum cover of backfill material is 2 feet deep. Native backfill material under areas of proposed buildings, base coarse and surfacing shall be compacted to at least 95 percent of maximum density, as determined by AASHTO T-180, Method C or D. Native backfill material in areas not under proposed buildings, base coarse and surfacing shall be compacted to a density at least equal to that of the adjacent undisturbed native soil.

Identification Tape: “Idento-Tape” shall be installed in the utility trench as shown on the drawings, specifying that utility lines are buried below.

BACKFILL FOR WATER VALVES AND VALVE BOXES

Valve boxes shall be surrounded a minimum of 3 inches on all sides with sand bedding material. Native backfill material shall be placed in layers not more than 8 inches thick, compacted uniformly through its entire depth as specified in Section 2200.3.9 above.

BACKFILL FOR STRUCTURES

A. Backfilling behind exterior foundation walls shall consist of materials as specified elsewhere herein and shall be compacted to a density of not less than 95 percent of the maximum dry density determined by ASTM

Procedure D1557 Method C or AASHTO T-180, Method C or D. Material placed outside the perimeter of the building shall be compacted to a density of not less than 90 percent of maximum.

B. Backfill behind interior walls, below slab-on-grade, footings and foundation mats shall consist of materials as specified elsewhere herein and shall be compacted to a dry density of not less than 95 percent of the maximum dry density determined by ASTM Procedure D-1557, Method C or AASHTO

T-180, Method C or D.

C. Backfilling against foundation walls shall not be started until conditions have been inspected and approved by the FOREST SERVICE.