Attach1_Specifications.doc

ATTACHMENT ONE

AG-82X9-S-09-0158

SPECIFICATIONS

ARNFPNG-SO

2009 Recreation Toilet Construction Project

CSI SPECIFICATIONS

FOR

Recreation Toilet Construction 2009

No. of Pages

DIVISION 1 – GENERAL REQUIREMENTS

Section 01010 - Summary of Work

Section 01300 - Submittals Section 01442 - Quality Control Section 01600 - Use of Government Facilities and Utilities

Section 01640 - Product Handling

Section 01710 - Clean Up and Disposal

Section 01900 - Measurement and Payment Section 01950 - Mobilization

DIVISION 2 – SITE CONSTRUCTION

Section 02030 - Site Clearing and Grubbing

Section 02112 - Removal of Existing Toilet Building, Vault, and Floors Section 02221 - Earthwork Section 02370 - Aggregate Section 02921 - Seeding and Mulching

DIVISION 3 – CONCRETE

Section 03101 - Concrete, Formwork, and Reinforcement Section 03400 - Precast Concrete

DIVISION 5 – METALS

Section 05520 - Access Hole Ring and Cover Section 05530 - Miscellaneous metals

DIVISION 6 – WOOD AND PLASTICS

Section 06100 - Rough Carpentry

Section 06192 - Prefabricated Wood Trusses Section 06200 - Finish Carpentry

DIVISION 7 – THERMAL AND MOISTURE PROTECTION

Section 07160 - Bituminous Damproofing and Vault Epoxy Coating Section 07210 - Building Insulation Section 07317 - Wood Shingles and Shakes

Section 07900 - Sealants and Caulking

DIVISION 8 – DOORS AND WINDOWS

Section 08110 - Hollow Metal Doors and Frames Section 08650 - Special Windows Section 08710 - Finish Hardware

DIVISION 9 – FINISHES

Section 09725 - Epoxy Floor Coating System Section 09900 - Painting

DIVISION 10 – SPECIAL CONSTRUCTION

Section 10100 - Toilet Building Section 10800 - Toilet Accessories

DIVISION 15 – MECHANICAL

Section 15001 - Toilet Stools

SECTION 01010

SUMMARY OF WORK

PART 1 - GENERAL

1.01 INTENT OF CONTRACT

A.

The intent of the contract is to provide for the complete construction of the project described in the contract. Unless otherwise provided the Contractor shall furnish all labor, materials, equipment, tools, transportation, and supplies, and perform all work required to complete the project in conformity with the project Drawings and Specifications and in accordance with provisions of the contract.

B.

Sections of Division 1 – General Requirements govern the execution of the work of all Sections of the Specifications.

1.02

DRAWINGS

A.

Contract Drawings accompany these Specifications and form a part of this contract.

1.03

LOCATION OF WORK

The work is located at the following sites:

1.

Peaceful Valley Campground - 28 miles southwest of Lyons, Colorado.

2.

Willow Creek Day-Use Area - 6 miles north of Granby, Colorado.

3.

Monarch Lake Day-Use Area - 21 miles north of Granby, Colorado.

4.

Arapaho Day Campground – Located 15 miles Northeast of Granby, Colorado.

1.04

DESCRIPTION OF THE WORK

A. The principal features of work to be performed include, but are not limited to the following:

1.

Pumping and removal of existing toilets.

2.

Demolition in place of concrete vaults to 18 inches below finished grade.

3.

Obliteration of existing aggregate trail associated with toilet removal.

4.

Excavation of site for new SST Toilet buildings.

5.

Construction of new SST Toilet buildings including concrete vaults and foundation.

6.

Construction of concrete and aggregate access trails for new toilet access.

7.

Relocation of existing barrier rocks.

8.

All necessary final grading.

9.

Seeding and mulch and rehabilitation of all disturbed ground.

1.05

GENERAL SITE CONDITIONS

A. Rock outcrops, surface cobbles, and boulders are evident at the site. Rock blasting may be required to accomplish the work. Excavation is unclassified material. It is the Contractor’s responsibility to investigate and become familiar with each site.

1.05 APPROVED EQUAL

A. The Contracting Officer (C.O.) shall make the final decision on what shall be accepted as an "Approved Equal" in accordance with the terms and conditions of the contract.

PART 2 - PRODUCTS

2.01

GOVERNMENT FURNISHED MATERIALS

Government lock sets including deadbolt locksets.

PART 3 - EXECUTION

Not Applicable.

SECTION 01300

SUBMITTALS

PART 1 - GENERAL

1.01

REQUIREMENTS

A. It will be the Contractor's responsibility to submit all information necessary to insure compliance. The Contractor shall submit information at least ten business days prior to beginning the associated work.

B. The following submittal is required following award of contract for review and/or approval pursuant to contract provisions:

Item Description

Copies Required References

1. Cost breakdown schedule listing main types of work and total amount of contract.

FAR 52.232-05

1.02

SUMMARY

A. This Section includes administrative and procedural requirements for submittals required for performance of the Work, including the following:

1. Product Data.

2. Samples.

3. Quality assurance submittals.

4. As Built Drawings B. Administrative Submittals: Refer to other Division Sections and other Contract Documents for requirements for administrative submittals. Such submittals include, but are not limited to, the following:

1. List of subContractors.

2. Quality Control Plan

3. Construction Schedule

1.03

SUBMITTAL PROCEDURES

A. Coordination: Coordinate preparation and processing of submittals with performance of construction activities. Transmit each submittal sufficiently in advance of performance of related construction activities to avoid delay.

1. Coordinate each submittal with fabrication, purchasing, testing, delivery, other submittals, and related activities that require sequential activity.

2. Coordinate transmittal of different types of submittals for related elements of the work so processing will not be delayed by the need to review submittals concurrently for coordination.

3. Processing: To avoid the need to delay installation as a result of the time required to process submittals, allow sufficient time for submittal review, including time for resubmittals.

B. Submittal Preparation: Place a permanent label or title block on each submittal for identification. Indicate the name of the entity that prepared each submittal on the label or title block.

1. Provide a space approximately 4 by 5 inches on the label or beside the title block on Shop Drawings to record the Contractor’s review and approval markings and the action taken.

2. Include the following information on the label for processing and recording action taken:

a. Project name.

b. Date.

c. Name and address of the Contractor.

d. Drawing number and detail references, as appropriate.

1.04

PRODUCT DATA

A. Submit written certification that all products and materials listed herein meet requiremnts.

B. Submit written certification that aggregate used for surfacing meets requirements including a sieve analysis along with results of the liquid and plasticity index testing.

1.05

SAMPLES

A. Submit two samples of each color, style, etc. of the items required herin.

B. Submit two samples showing each color, style, and etc. of materials of the prefabricated toilet building.

PART 2 - PRODUCTS

SECTION 01442

QUALITY CONTROL

PART 1

- GENERAL

1.01

DESCRIPTION

A.

The work of this Section consists of preparing and executing a quality control program.

1.02

SUBMITTALS

A.

Quality Control Plan: At the time of the preconstruction conference, submit for approval a written Contractor Quality Control (CQC) plan. If the plan requires any revisions or corrections, the Contractor shall resubmit the plan within 10 days. The Government reserves the right to require changes in the plan during the contract period as necessary to obtain the quality specified. No change in the approved plan may be made without written concurrence by the Contracting Officer. No work shall begin until the CQC is approved by the Contracting Officer. The plan shall include:

1.

A list of personnel responsible for quality control and assigned duties. Include each person's qualifications.

2.

A copy of a letter of direction to the Contractor's quality control supervisor outlining assigned duties.

3.

Names and descriptions of laboratories to perform sampling and testing, and samples of proposed report forms.

4.

Methods of monitoring and controlling environmental pollution and contamination as required by regulations and laws.

5.

Methods of performing, documenting, and enforcing quality control of all work.

B.

Submittals: Submit Quality Control Report showing all inspections and tests within 3 days following the date covered by the report.

C.

Tests: Submit triplicate copies of complete test results not later than three calendar days after the test was performed. Submit failing test results and proposed remedial actions within four hours of noted deficiency.

D.

Off Site Inspection Reports: Submit prior to shipment.

E.

Progress Payments: If the CQC plan and Daily Quality Control Reports are not submitted in a timely manner, the Contracting Officer may retain an appropriate amount of the applicable progress payment.

1.03

QUALITY ASSURANCE

A.

General: Except for tests or other items of work specified to be performed by the Government, the quality of all work shall be the responsibility of the Contractor. Inspect and test all work often enough to ensure that the quality of materials, workmanship, construction, finish, and functional performance is in compliance with applicable Specifications and Drawings.

B.

Quality Control Staff: The Contractor's job supervisory staff may be used for quality control, supplemented as necessary by additional technicians. The Contractor's designated Quality Control Supervisor shall be employed full time at the project site whenever contract work is in progress.

C.

Submit certified independent testing laboratory to perform sampling and testing approved by Contracting Officer.

PART 2

- PRODUCTS

Not Applicable.

PART 3 - EXECUTION

3.01

OFF-SITE CONTROL

A.

Items that are fabricated or assembled off-site shall be inspected for quality control at the place of fabrication.

3.02

ON-SITE CONTROL

A.

Notify the Contracting Officer at least 24 hours in advance of the initial and follow-up phases.

B.

Preparatory: Perform before beginning each feature of work.

1.

Review control submittal requirements with personnel directly responsible for the quality control work.

2.

Ensure that provisions have been made for field control testing.

C.

Initial: As soon as work begins, inspect and test a representative portion of a particular feature of work for quality of workmanship. Review control testing procedures to ensure compliance with contract requirements.

D.

Follow-Up: Inspect and test as work progresses to ensure compliance with contract requirements until completion of work.

3.3

DOCUMENTATION

A.

Maintain Daily Quality Control Reports of quality control activities and tests. Daily Quality Control Reports may not be substituted for other written reports required under the General Provisions, such as Disputes, Differing Site Conditions, or Changes.

3.4

ENFORCEMENT

A.

The Contractor shall stop work on any item or feature pending satisfactory correction of any deficiency noted by the quality control staff or the Contracting Officer. Construction shall not proceed on any feature of work containing uncorrected work.

PART 4 - MEASUREMENT

4.01

METHOD

A.

The method of measurement, as described in Section 01900, will be designated in the SCHEDULE OF ITEMS. Quality control shall include all incidental items, including but not limited to: travel, per diem, transport of samples, testing of samples, and lab supplies.

PART 5 - PAYMENT

5.01

BASIS

A.

The accepted quantities will be paid at the contract unit price for each pay item shown in the SCHEDULE OF ITEMS. Payment to the Contractor for work completed will not be made until the applicable inspection report(s), indicating compliance with the contract Specifications, have been submitted to the Government and accepted by the Contracting Officer.

SECTION 01600

USE OF GOVERNMENT FACILITIES AND UTILITIES

PART 1 - GENERAL

1.01

USE OF SITE BY PUBLIC

The areas will remain open to the public while work is completed. Contractor operations will be confined to the immediate project site.

1.02

USE OF SITE BY CONTRACTOR

Storage Area: An area within the campground will be made available for use as a storage area. The CO shall approve the location of the area prior to its use. Toilet buildings shall not be used for storage.

Staging Area: An area at the campground may be available upon written request to the CO as a staging area for the Contractor’s personnel at no cost to the Contractor. The Contractor and all personnel shall comply with Forest Service regulations relative to such use.

C.

Sanitary Facilities: Sanitary facilities are available on site. Contractor may use on site sanitation facilities upon approval of written request.

Not Used.

SECTION 01640

PRODUCT HANDLING

PART 1 - GENERAL

1.01

SUMMARY

A. Work includes protecting products scheduled for use in the work by means including, but not necessarily limited to, those described in this Section.

1.02

QUALITY ASSURANCE

A. Include within the Contractor's quality assurance program such procedures as are required to assure full protection of work and materials.

1.03 TESTING LABORATORY RECOMMENDATIONS

A. Except as otherwise approved by the CO, determine and comply with testing Laboratory's recommendations on product handling, storage, and protection.

1.04

PACKAGING

A. Delivery of Products to the job site:

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

2. 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 Government.

B. The CO will reject as non‑complying such material and products that do not bear identification satisfactory to the CO as to grade, quality, and other pertinent information.

1.05

PROTECTION

A.

Protect finished surfaces over which equipment and materials are handled.

B.

Maintain finished surfaces suitably protected until accepted by the Government.

1.06

REPAIRS AND REPLACEMENTS

A. In event of damage, promptly make replacements and repairs to the item as directed and approved by the CO and at no additional cost to the Government.

B. Additional time required to secure replacements and to make repairs will not be considered by the CO to justify an extension in the Contract Time of Completion.

1.07

MEASUREMENT AND PAYMENT

A. No separate measurement or payment will be made for work specified in this Section.

SECTION 01710

CLEAN UP AND DISPOSAL

PART 1 - GENERAL

CLEAN UP

The work site shall be maintained in a neat condition during construction. The work site shall be kept free from accumulation of waste materials and rubbish resulting from the work.

If work is stopped or delayed for an extended period of time, the Contractor shall clean up the site as determined by the CO.

The Contractor must provide receptacles for waste materials and rubbish accumulated during the course of work. Use of the receptacles at the site is prohibited.

D.

Before final acceptance of the project, the Contractor shall remove all waste materials and rubbish resulting from the work.

SECTION 01900

MEASUREMENT AND PAYMENT

PART 1 - GENERAL

1.01

MEASUREMENT & PAYMENT

A.

Measurement and payment for contract work will be made only for and under those pay items included in the SCHEDULE OF ITEMS. All other work and materials will be considered as included in the payment for items shown.

1.02

DETERMINATION OF QUANTITIES

A.

The following measurements and calculations are used to determine contract quantities.

1.

For individual construction items, longitudinal and lateral measurements for area computations will be made horizontally or corrected to horizontal measurement unless otherwise specified. Measurements for seeding, mulching, geotextiles, netting, erosion control blankets, and sodding will be along slope lines.

2.

The average end area method will be used to compute volumes of excavation or embankment. However, if in the judgment of the Engineer, the average end area method is impractical, measurement will be made by volume in hauling vehicles or by other three dimensional methods.

3.

Structures will be measured according to neat lines SHOWN ON THE DRAWINGS or as altered by the Engineer in writing to fit field conditions.

4.

For items that are measured by the linear foot, such as pipe culverts, fencing, guardrail, and underdrains, measurements will be made parallel to the base or foundation upon which the structures are placed. Pipe and pipe arch culverts shall be measured along center of invert and arches shall be measured at spring line.

5.

For aggregates weighed for payment, the tonnage will not be adjusted for moisture content.

6.

For standard manufactured items--such as fence, wire, plates, rolled shapes, pipe conduits--identified by gauge, weight, Section dimensions, and so forth, such identifications shall be considered the nominal weights or dimensions. Unless controlled by tolerances in cited Specifications, manufacturer's tolerances will be accepted.

1.03

UNITS OF MEASUREMENT

A.

Payment will be by units defined and determined according to U.S. Standard measure and by the following:

1.

Cubic Yard. A measurement computed by one of the following methods:

a.

Excavation, Embankment, or Borrow. The measurement computed by the average end area method from measurements made longitudinally along a centerline or reference line.

b.

Material in Place or Stockpile. The measurement computed using the dimensions of the in-place material.

c.

Material in the Delivery Vehicle. The measurement computed using measurements of material in the hauling vehicles at the point of delivery. Vehicles shall be loaded to at least their water level capacity. Leveling of the loads may be required when vehicles arrive at the delivery point.

2.

Each. One complete unit, which may consist of one or more parts.

1.04

METHODS OF MEASUREMENT

A.

One of the following methods of measurement for determining final payment is DESIGNATED on the SCHEDULE OF ITEMS for each pay item:

1.

Designed Quantities (DQ). These quantities denote the final number or 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 include the preliminary survey information, design assumptions, calculations, Drawings, and the presentation in the contract. Changes in the number of units SHOWN in the SCHEDULE OF ITEMS may be authorized under any of the following conditions:

a.

As a result of changes in the work authorized by the Contracting Officer.

b.

As a result of the Contracting Officer determining that errors exist in the original design that cause a pay item quantity to change by 15 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 that cause a pay item quantity to change by 15 percent or more. The evidence must be verifiable and consist of calculations, Drawings, or other data that show how the designed quantity is believed to be in error.

2. 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.

3. Actual Quantities (AQ). These quantities are determined from measurements of completed work. The Contractor shall be responsible for measuring all "AQ" items.

SECTION 01950

MOBILIZATION

PART 1 - GENERAL

1.01

SUMMARY

A. Move personnel, equipment, material, and incidentals to the project and perform all activities necessary to accomplish work at the project site. Obtain permits, insurance, and bonds.

1.02

MEASUREMENT

A. Method: Measure mobilization by the lump sum.

PART 4 - MEASUREMENT

4.01

METHOD

A.

The method of measurement, as described in Section 01900, will be DESIGNATED in the SCHEDULE OF ITEMS.

B. The accepted quantity, measured as provided above, will be paid at the contract price per unit of measurement for the pay item listed below that is designated in the Schedule of Items.

C. The mobilization lump sum will be paid as follows:

1. If applicable, bond premiums will be reimbursed according to FAR clause 52.232-5, Payment Under Fixed-Price Construction Contracts, after receipt of evidence of payment

2. Fifty percent of the lump sum, not to exceed 5 percent of the original contract amount, will be paid following completion of 5 percent of the original contract amount, not including mobilization.

3. Payment of the remaining portion of the lump sum, up to 10 percent of the original contract amount, will be paid following completion of 10 percent of the original contract amount, not including mobilization.

4. Any portion of the lump sum in excess of 10 percent of the original contract amount will be paid after final acceptance.

PART 5 - PAYMENT

5.01

BASIS

A.

The accepted quantities will be paid at the contract unit price for each pay item shown in the SCHEDULE OF ITEMS.

SECTION 02030

SITE CLEARING AND GRUBBING

PART 1 - GENERAL

SCOPE

This Section includes clearing and grubbing as well as the disposal of trees, brush, stumps, rocks, and rubbish within the clearing limits of construction.

3.01

CLEARING

Clearing Limits: Clearing limits for buildings shall extend maximum 10 feet from exterior walls, concrete slabs, excavation limits as shown on the Drawings or as staked on the ground by the Government.

Clear small trees, brush, snags, underbrush, rocks, and rubbish within the clearing limits.

Individual marked trees, within the clearing limits, shall be left standing and uninjured.

D.

All timber removed during clearing operations having a minimum diameter 75 mm (3 inch) and a length of 2.44 m (8 feet) or more shall be trimmed of limbs and tops, sawed into 2.44 m (8-foot) lengths, and neatly decked at a location designated by the CO on the construction site. Title to all such timber shall remain with the Government.

E.

Limbs with a diameter of less than 75 mm (3 inch) and brush shall be considered vegetative debris and treated in accordance with Subsection 3.03.

3.02

GRUBBING

Structures, Buildings, and Areas to be Graded: Inside the clearing limits, grub and remove all stumps. Grub and remove all roots to a depth of at least 18 inches below the natural ground when fill is required for site grading. When excavation is required for site grading, grub and remove all roots to a depth of at least 18 inches below finished grade.

3.03

DISPOSAL

A.

Disposal of vegetative debris shall be accomplished by scattering the debris within the project site as directed by the CO. Burning of slash shall not be permitted.

B.

The Contractor shall remove all vegetation, debris, organic matter, and otherwise objectionable material which are not suitable for use as fill.

C.

The Contractor shall stockpile any material that is designated for reuse in an area designated by the CO.

SECTION 02112

REMOVAL OF EXISTING TOILET BUILDING, VAULTS, AND FLOORS

PART 1 - GENERAL

DESCRIPTION

A.

This Section includes removing the existing toilet building, concrete vaults, and floors as well as any existing concrete sidewalks. Works shall include: pumping waste and trash from the old vaults and proper disposal; removing and disposing of old building; removing and disposing of old steel or concrete vaults and floor; and removing and disposing of any contaminated soil around the old vault, if necessary. If new vault and toilet are not to be placed at the site, the Contractor shall also furnish fill material, backfill, compact, fertilize, and seed the disturbed area.

1.02

RELATED WORK SPECIFIED ELSEWHERE

A.

Earthwork: Section 02221.

PART 2 – PRODUCTS

Not Applicable.

PART 3 – EXECUTION

3.01

WASTE REMOVAL

A.

The existing vault waste and trash shall be removed and the waste disposed of at an approved sanitary treatment plant.

3.02

BUILDING REMOVAL

A.

The Contractor shall remove and dispose of the existing building. The building shall be removed from National Forest land. The building shall become the property of the Contractor and may be salvaged, if desired. If the building is not salvaged then it shall be disposed of to an approved sanitary landfill.

3.03

VAULT REMOVAL

A.

The Contractor shall pump waste from vault, collapse in all concrete walls, remove all debris from within 24” of finished ground elevation, and backfill with approved fill material. Disturbed ground shall be graded to match surrounding contours.

B.

If the soil surrounding the old vaults is contaminated by leaking vault waste, it shall be removed to a depth of 24 inches below the surface of the contaminated ground. Excavated material shall be removed and disposed of to an approved sanitary landfill.

3.04

BACKFILL

A.

The resulting hole shall be backfilled in 12 inch lifts and compacted to the density of the surrounding material. The maximum size of rock shall not exceed 10 inches in largest dimension. The fill material shall be capped with 4” of imported topsoil. If imported fill material is used, the fill material shall be certified as weed free. The site shall be smoothed and graded to blend with the surrounding area.

3.05

NOTIFICATION

A.

The Contractor shall notify the Contracting Officer 24 hours in advance of removing old vaults and before backfilling abandoned vault sites.

PART 4 - MEASUREMENT

4.01

METHOD

A.

The method of measurement, as described in Section 01900, will be designated in the SCHEDULE OF ITEMS.

PART 5 - PAYMENT

5.01

BASIS

A.

The accepted quantities will be paid at the contract unit price for each pay item shown in the SCHEDULE OF ITEMS.

SECTION 02221

EARTHWORK

PART 1 - GENERAL

Includes structural excavation, general backfill, gravel bedding, and compaction around improvements.

B.

Defines suitable, unsuitable, and excess excavation. Explains procedures for handling excess excavation and unsuitable excavation.

1.02

DEFINITIONS

Suitable Excavation: Excavated material suitable for use as backfill. Suitable excavation does not contain rock greater in size than that approved for the specific backfill purpose, frozen earth, clods, debris, or material with an exceptionally high void content (vegetative matter). The size of rock is dependent on the purpose and location of the backfill. Refer to the individual Sections for backfill definitions.

Unsuitable Excavation: The opposite of suitable excavation. Excavated material not suitable for use as backfill.

Excess Excavation: Surplus excavation that is not needed to complete construction. Excess excavation can be either suitable or unsuitable excavation.

PROTECTION

Protect excavations from accumulation of water. If clay soil becomes saturated, compact after it has dried as specified herein.

Protect excavations from freezing. If frost action occurs, compact ground after thawing as specified herein.

Provide shoring and bracing as necessary to protect structures employees, and the public. Comply with OSHA and other governing regulations.

1.04

REFERENCES

Standard Moisture Density Test AASHTO T-99, Method C or D.

PART 2 - PRODUCTS

BACKFILL AND FILLS

Use the excavated material as specified below.

1. Remove rocks over 150 mm (6") in maximum dimension, ice or frozen earth, muck, debris, and earth with high void content.

2. Remove rocks over 100 mm (4") in maximum dimension for backfill placed within 305 mm (12") of foundation.

3. Materials removed in stripping shall not be used for backfill.

2.02

BEDDING AND BACKFILL MATERIAL

Initial backfill shall be select earth material taken from the excavation or other source. Material shall not contain any rock larger than 13 mm (1/2”) in greatest dimension, frozen earth, clods, debris, or material with an exceptionally high void content (vegetative matter).

Subsequent backfill shall be earth material free from large rock greater than 150 mm (6”) in its largest dimension, frozen earth, clods, debris, or material with an exceptionally high void content (vegetative matter).

Bedding shall be well-graded, rounded or angular stone or gravel, sand, or other material approved by the CO. Bedding may be processed from onsite-excavated material or imported from offsite. 100% of the material shall pass the 13 mm (1/2") sieve and no more than 12% of the material shall pass the 75(m (No. 200) sieve. Sieve analysis shall be signed and sealed by a professional engineer.

2.03 IMPORTED MATERIAL

A.

General: All fill material shall be free of roots, sod, organic matter, or deleterious material and rocks or lumps larger than 4 inches in greatest dimension, with a liquid limit less than 40 and a plasticity index less than 10. All fill material shall be approved by the Contracting Officer prior to its use. Material shall meet the soil characteristics of the surrounding site for color, texture, and composition.

B.

On-Site Material: In general, the on-site soils are suitable for use as fill.

C.

Broken concrete or asphaltic pavement shall not be used as fill material.

D.

Imported Material: The Contractor shall notify the Contracting Officer at least four days in advance of Contractor’s intention to import material.

2.04 ITEMS TO BE RELOCATED

A.

Work includes, but in not limited to, the relocating existing barrier rocks designated by the CO and as shown on the Drawings. The items to be relocated will be located in the field by the Contractor and approved by the Government before work begins.

PART 3 - EXECUTION

SHORTAGE OF SUITABLE EXCAVATION

Unsuitable excavation may be processed onsite by the Contractor, by screening or other methods to produce suitable excavation.

In lieu of processing unsuitable excavation, Contractor may import suitable excavation at no cost to the Government. Imported material shall be certified as weed free by visual inspection of the borrow source.

EXCAVATION

Perform to the lines, grades, and elevations indicated. Extend excavation a sufficient distance from walls, and footings to allow for safety, placing and removal of forms, installation of services, compaction of backfill, and for inspection.

1.

Bottoms for piers, footings, and foundation walls shall be level, clean, true to size, and to undisturbed or compacted soil clear of loose materials.

Pier excavations shall be drilled or otherwise accurately formed.

If excavations for foundations are carried below the specified levels, extend the foundation to the excavated level.

Rock Blasting: Use the types of explosives and blasting accessories that will obtain the desired results. Follow Federal, State, and local regulations on the purchase, transportation, storage, and use of explosive material. Furnish copies or other proof of all applicable permits and licenses.

3.03

BACKFILLING

Place and compact fills and backfills adjacent to structures in such a manner as to prevent wedging action or eccentric lodging upon or against the structures.

Remove forms and clean the excavation of trash and debris prior to backfilling.

Do not place backfill against any concrete footings or structure without prior permission of the CO and in no case less than 7 days after placement of concrete.

Place backfill in horizontal layers not more than 305 mm (12") thick with the proper moisture content for the required degree of compaction. Flooding or puddling not allowed. Compact each layer as specified. Backfill layer thickness under concrete flatwork limited to 150 mm (6") maximum.

4.

Heavy equipment for spreading and compacting backfill shall not be operated closer to a wall than a distance equal to the height of the backfill above the top of the excavation.

5.

Provide for anticipated settlement and shrinkage of the backfill and for the finished grades required.

6.

Prepare subgrades for gravel fill areas level and free from soft spots. Place and compact earthfill where required to raise subgrade. Place gravel to the lines and grades shown. Compact the gravel sub-base as specified until a smooth, uniform use surface is obtained.

3.04

COMPACTION

Compact each layer to following percentages of maximum density determined by AASHTO T-99.

Gravel bedding under structures: 95%.

General backfill around and on top of structures: 85%

3.05

DISPOSAL OF UNSUITABLE AND EXCESS EXCAVATION

Dispose of unsuitable and excess excavation within the campground at a site designated by the CO.

Disposal site shall be stripped of 150mm (6”) of topsoil and stockpiled prior to disposal operations.

Excess and unsuitable excavation shall be end dumped and spread to approximate natural contours.

After disposal operations are complete, spread stockpiled topsoil 150mm (6”) deep over site to approximate natural contours.

PART 4 - MEASUREMENT

4.01

METHOD

A.

The method of measurement, as described in Section 01900, will be designated in the SCHEDULE OF ITEMS.

PART 5 - PAYMENT

5.01

BASIS

A.

The accepted quantities will be paid at the contract unit price for each pay item shown in the SCHEDULE OF ITEMS.

SECTION 02370

AGGREGATE

PART 1 - GENERAL

Construct aggregate surfaced trail where noted on Drawings.

B.

Construct aggregate bedding under concrete vaults where noted on Drawings.

SUBMITTALS

The following shall be submitted to the CO: source of aggregate surfacing and certification that aggregate meets requirements including a sieve analysis along with the results of the liquid limit and plasticity index testing.

MEASUREMENT

Use the method of measurement that is designated in the Schedule of Items.

PART 2 - PRODUCTS

AGGREGATE SURFACING

Aggregate shall be crushed stone, crushed slag, or crushed gravel free from vegetable matter and lumps of clay.

Surfacing material shall comply with AASHTO M-147 except that the requirements for the ratio of minus No. 200 sieve fraction to the minus No. 40 sieve fraction, stated in 2.2.2 of AASHTO M147, shall not apply.

The aggregate shall conform to the following requirements: A minimum of 8 percent passing the No. 200 sieve, a maximum liquid limit of 35, and plasticity index range of 4 to 9 when the aggregate is tested in accordance with ASSHTO T89 and T90 respectively.

Aggregate gradation shall meet the requirements of Grading E, AASHTO M-147 or Colorado Department of Transportation (C.D.O.T.) Class 6. Aggregate material shall be certified as weed free by visual inspection of the aggregate source.

Percentages by Weight Passing Square

Sieve Designation Mesh Sieves (AASHTO T-27 and T-11) 1 inch

No. 4 55-100

No. 10 40-100

No. 40 20-50

No. 200 8-20

Contractor shall submit to the CO for approval aggregate source and certified sieve analysis. Approval shall be given prior to placing aggregate surfacing.

CHEMICAL ADDITIVES

Chemical additives serving as dust inhibitors shall meet the following requirements:

Calcium Chloride: AASHTO M-144 or ASTM D-98

Hydrated Lime: ASTM C-207, type N.

Sodium Chloride: AASHTO M-143 or ASTM D-632.

Chemical additives shall not be used without the CO's written approval.

PART 3 - EXECUTION

GENERAL

In no case shall any surfacing material be placed on a frozen, muddy, or unstable subgrade or until the subgrade has been checked and approved by the CO.

Construct trail where marked by CO and to width shown on the Drawings. Prepare sub grade of trail by compacting the top 6” of subgrade to 95% of AASHTO T-99. Finish trail surface with 4” depth of aggregate.

AGGREGATE

Aggregate surfacing shall be uniformly placed over the entire prepared subgrade and compacted to 95 percent of the maximum dry density as determined by AASHTO T-180.

Aggregate surfacing shall be uniformly placed at the locations and depths shown on the Drawings.

PART 4 - MEASUREMENT

4.01

METHOD

A.

The method of measurement, as described in Section 01900, will be designated in the SCHEDULE OF ITEMS.

PART 5 - PAYMENT

5.01

BASIS

A.

The accepted quantities will be paid at the contract unit price for each pay item shown in the SCHEDULE OF ITEMS.

TC " SECTION 02933 - SEEDING & MULCHING " \l 2 SECTION 02921

SEEDING AND MULCHING

PART 1 - GENERAL

1.01

SUMMARY

A. This work shall consist of preparing seedbeds and furnishing and placing required seed, fertilizer, limestone, mulch, and net and blanket material.

PART 2 - PRODUCTS

2.01

REQUIREMENTS

A. Materials shall meet the requirements of the following Subsections:

1. Seed

02940; 2.04

2. Mulch

02940; 2.05

3. Water

02940; 2.08(a)

B. Tackifier shall be organic tackifier with wood fibers and a glue derived from the extract of guar, seaweed, or psyllium (plantain) plant material. M-Binder or Plant-A-Go or approved equal.

PART 3 - EXECUTION

3.01

SEEDING SEASONS

A. Seeding season shall consist of all months of the year except June, July, and August, whenever the ground is free of snow and not frozen or muddy, as determined by the Contracting Officer. Seeding materials shall not be applied during windy weather or when the ground is excessively wet or frozen. Work shall be performed during each specified seeding season on all completed and previously untreated Sections.

3.02

SOIL PREPARATION

A. The areas to be seeded shall be finished as required by other applicable Sections to the lines and grades shown on the Drawings. Areas that are damaged by erosion or other causes shall be restored.

B. The surface soil shall be in a roughened condition favorable for germination and growth.

3.03

APPLICATION METHODS FOR SEED, FERTILIZER, & LIMESTONE

A. Material may be placed by the following methods:

1. Hydraulic Method. The seed or seed and fertilizer shall be mixed with water in the amounts and mixtures specified to produce a slurry and then applied under pressure at the rates specified. When wood cellulose or grass straw mulch materials are to be incorporated as an integral part of the slurry mix, they shall be added after all other materials have been thoroughly mixed in the tank.

a. Legume seed shall be inoculated with approved cultures in accordance with instructions of the manufacturer. The inoculum used for hydraulic seeding shall be four times that recommended for dry seeding.

2. Dry Method. Mechanical seeders, seed drills, landscape seeders, cultipacker seeders, fertilizer spreaders, or other approved mechanical seeding equipment shall be used to apply the seed or seed and fertilizer in the amounts and mixtures specified.

a. Fertilizer in dry form and ground limestone shall be spread separately at the rates specified and incorporated in one operation to the required depth on those areas shown on the Drawings.

b. Hand-operated seeding devices may be used when seed, fertilizer, and ground limestone are applied in dry form.

3.04

APPLICATION OF MULCH

A. Hydraulic Method. Wood cellulose or grass straw fiber mulch and fertilizer may be applied in one operation by means of hydraulic equipment that uses water as the carrying agent. A continuous agitator action that keeps the materials in uniform suspension must be maintained throughout the distribution cycle. The discharge line shall provide an even distribution of the solution to the seedbed. Mulching shall not be done in the presence of free surface water. Application to areas SHOWN ON THE DRAWINGS shall start at the top of the slope and work downward. If necessary, the use of extension hoses may be required to reach the extremities of slopes. The rate of application shall be as specified.

B. Dry Method. Mulch shall be applied after seeding and fertilizing are completed.

1. When a binder is to be used for mulch, the material shall be applied at the rate specified. It shall be immediately distributed evenly over the mulch. The Contractor shall prevent asphalt adhesive materials from marking or defacing structures, appurtenances, pavements, utilities, or plant growth.

C. The application method for all seeding shall be the Hydraulic method with the following application rates: Seed 28.0 Pounds/Acre, Mulch 1-1/2 Ton/Acre. Tackifier shall be applied at a rate of 100 Pounds/Acre.

1. Seed shall be applied at the rate of 28.0 pounds per acre. The seed mix shall be as follows:

2. All hay, straw, or mulch shall be certified as noxious weed-free. Contact the State Department of Agriculture (303-239-4142) for information on noxious weed-free material.

3. Mulch shall be commercial wood cellulose fiber.

3.05

INSTALLATION OF NETTING & EROSION CONTROL BLANKETS

A. Nettings and erosion control blankets shall be installed as shown on the Drawings and in accordance with the manufacturer's recommendations.

3.07

CARE DURING CONSTRUCTION

A. The Contractor shall be responsible for protecting and caring for seeded areas until final acceptance of the work. The Contractor shall repair all damage to seeded areas caused by his construction operations without additional compensation.

SECTION 03101

CONCRETE, FORMWORK, AND REINFORCEMENT

PART 1 - GENERAL

1.01

RELATED WORK SPECIFIED ELSEWHERE

A.

Earthwork - Section 02221.

1.02

SUPPLIERS

A.

Concrete shall be supplied by a ready-mix firm regularly engaged in the business.

1.03

QUALITY ASSURANCE

A.

Codes and Standards:

1.

Comply with provision of following codes, Specifications and standards, except where more stringent requirements are shown or specified:

ACI 301 "Specification for Structural Concrete for Buildings."

ACI 318 "Building Code Requirements for Reinforced Concrete."

B.

Concrete Testing Service:

1.

Engage a testing laboratory acceptable to Contracting Officer to perform material evaluation tests.

C.

Materials and installed work may require testing and retesting at any time during progress of work. Tests including retesting of rejected materials and installed work shall be done at Contractor's expense.

1.04

SUBMITTALS

A.

Product Data:

1.

Submit data for proprietary materials and items, including reinforcement and forming accessories, design mix, admixtures, patching compounds, water stops, joint systems, curing compounds, dry-shake finish materials, and others as requested by Contracting Officer.

B.

Shop Drawings - Reinforcement:

1.

Submit shop Drawings for fabrication, bending, and placement of concrete reinforcement.

2.

Comply with ACI 315 "Manual of Standard Practice for Detailing Reinforced Concrete Structures" showing bar schedules, stirrup spacing, diagrams of bent bars, and arrangement of concrete reinforcement.

3.

Include special reinforcement required and openings through concrete structures.

1.05

TESTS

A.

All concrete testing described below shall be performed by the Contractor at his expense. Testing shall be done by a laboratory regularly engaged in testing of concrete. Results shall be reported to the Contracting Officer in writing over the signature and stamp of a Registered Professional Engineer. Provide Contracting Officer with notice of intent to place and test concrete at least two business days (Monday through Friday) prior to placing and testing. Contracting Officer must be present during placing and testing.

B.

Cylinders: 6-inch diameter cylinders will be made and cured in accordance with ASTM C31 (80) except that field curing temperatures 60-80º F will be permitted until cylinders are shipped to the laboratory.

C.

Compressive strength: ASTM C39.

1.

The specified 7-day and 28-day strengths are 2,000 and 3,000 psi, respectively. Not more than 20 percent of the strength tests shall have values less than the specified strength and the average of any six consecutive tests shall be equal to or greater than the specified strength. If fewer than six strength tests are available, Note 21 of ASTM C94 shall apply.

2.

A test is defined as the average of two cylinder breaks, except if any cylinder shows definite evidence (other than low strength) of improper sampling, molding, handling, curing, or testing. If this occurs, the cylinder shall be discarded and the strength of the remaining cylinder shall be considered the test result.

3.

When test cylinders break below required strengths, the COR may order core samples of questionable concrete taken in accordance with ASTM C42. If core samples also indicate below required strengths, costs of coring and testing will be borne by the Contractor, and the Contracting Officer may order all inferior concrete replaced at no expense to the Government.

D.

Test Frequency:

1.

6" Cylinder - 3 per truck batch.

2.

Slump - 1 per truck batch.

3.

Air Test - 1 per truck batch.

1.06

MIX DESIGN

A.

Proportion the cement, aggregate, and water to obtain concrete with good workability.

B.

Minimum cement content:

5.5 sacks per cubic yard.

C.

Maximum water-cement ratio:

6.5 gallons per sack.

1.07

BATCH CERTIFICATION

A.

A concrete batch certificate containing all items shown on the example in this Section shall be completed and furnished to the Contracting Officer with each load.

PART 2 - PRODUCTS

2.1

FORM MATERIALS

A.

Forms:

1.

Plywood, lumber, or metal free of defects which could cause blemishes. Other material shall be used only on approval of Contracting Officer.

2.

Use boards only when the finished work is not exposed.

B.

Form Coating:

1.

Provide commercial formulation form-coating compounds that will not bond with, stain nor adversely affect concrete surfaces, and will not impair subsequent treatment of concrete surfaces.

C.

Ties:

1.

Standard metal form clamp assemblies or metal rods or bars of a type which act as spreaders and break back at least 1 inch from concrete surfaces.

2.

Under special or unusual conditions, where rod or bar ties are not adaptable or proper sizes are not available, wire ties may be used if approved in advance by the Contracting Officer.

2.02

REINFORCING

A.

Reinforcing Bars:

1.

ASTM A615, grade 60 unless other grade indicated on the Drawings.

B.

Welded wire mesh:

1.

ASTM A185, welded steel wire fabric.

C.

All reinforcement shall be new, free from dirt, oil, paint, grease, loose mill scale, and loose or thick rust when placed.

D.

Store on blocks or horses off the ground in a manner to prevent bending, rusting, and accumulations of dirt or soil. Reinforcing shall be bundled and tagged with grades and suitable identification marks for checking, sorting, and placing. Tags and marks shall be waterproof and shall not be removed until steel is placed.

E.

Supports for Reinforcement:

1.

Provide supports for reinforcement including bolsters, chairs, spacers, and other devices for spacing, supporting, and fastening reinforcing bars and welded wire fabric in place.

2.

For slabs-on-grade, use supports with sand plates or horizontal runners where base material will not support chair legs.

2.03

CONCRETE MATERIAL

A.

Cement:

1.

ASTM C150 Type I, use one brand of cement throughout project.

B.

Aggregate:

1.

ASTM C33 with designated size of coarse aggregate No. 67 (3/4 inch to No. 4).

2.

Local aggregates not complying with ASTM C33, but which have shown by special test to produce concrete of adequate strength and durability, may be used when approved by Contracting Officer.

C.

Water:

1.

Potable.

D.

Admixtures:

1.

Air-entraining, ASTM C260, subject to compliance with requirements, provide one of the following:

a.

"SIKA AER;" Sika Corp.

b.

"AIR-TITE;" Gifford Hill.

c.

"ADZ-AIR;" Chem-Master Corp.

2.

Water-Reducing Admixture: ASTM C 494, Type A, and contain not more than 0.1% chlorine ions.

a.

Available Products: Subject to compliance with requirements, products which may be incorporated in the work include, but are not limited to, the following:

1) "Eucon WR-75"; Euclid Chemical Co.

2) "Pozzolith 344"; Master Builders

3) "Chemtard"; Chem-Masters Corp.

3.

Water-Reducing, Nonchloride Accelerator Admixture: ASTM C 494, Type E, and containing not more than 0.1% chloride ions.

a.

Available Products: Subject to compliance with requirements, products which may be incorporated in the work include, but are not limited to, the following:

1) "Accelguard 80"; Euclid Chemical Co.

2) "Pozzolith 500"; Master Builders

4.

Calcium chloride or admixture containing more than 0.1% chloride ions are not permitted.

2.04

PREMOLDED EXPANSION JOINT FILLER

A.

ASTM D994, D1751, or D1752 subject to compliance with requirements, provide one of the following:

1.

"FF-13, FF-14, FF-15;" Progress Unlimited.

2.

"SEALTIGHT;" W. R. Meadows Inc.

3.

"PLASTAZOTE;" E-Poxy industries, Inc.

2.05

CURING COMPOUND

A.

Colorless, complying with ASTM C-309-81, Type 1 or 1-D.

B.

Subject to compliance with requirements, provide one of the following:

1.

"SEALCO;" Gifford Hill.

2.

"CLEAR BOND;" Guardian Chemical Co.

3.

"SEALTIGHT CS-309;" W. R. Meadows, Inc.

2.06

HARDENER

A.

Colorless, liquid, chemical type.

B.

Magnesium and/or fluosilicates compound.

C.

Subject to compliance with requirements, provide one of the following:

1.

"BURKE-0-UTH;" Burke Co.

2.

"SCIDLITH;" Chem-Masters.

3.

"CLEAR BOND;" Guardian Chemical Co.

2.07

CONTROL JOINTS (PREMANUFACTURED)

A.

Plastic or metal.

B.

Depth of slab thickness.

2.08

UNDERSLAB MOISTURE-VAPOR BARRIER

A.

Provide a reinforced glass fiber laminated polyethylene moisture-vapor barrier over prepared base material if indicated on Drawings.

B.

Use only materials which are resistant to decay when tested in accordance with ASTM E154.

C.

Subject to compliance with requirements, provide one of the following:

1.

"MOISTOP," Fortifiber.

2.

"DAMP STOP," Permathene Plastics Ltd.

3.

"GRIFFOLYN T-65," Griffolyn Co.

D.

Provide pressure sensitive adhesive tape to seal overlapped edges.

2.09

PROPORTIONING AND DESIGN OF MIXES

A.

Prepare design mixes for each type and strength of concrete by either laboratory trail batch or field experience methods as specified in ACI 301. If trial batch method is used, use an independent testing facility acceptable to the Contracting Officer for preparing and reporting proposed mix designs. The testing facility shall not be the same as used for field quality control testing unless otherwise acceptable to the Contracting Officer.

B.

Submit written reports to the Contracting Officer of each proposed mix for each class of concrete at least 15 days prior to start of work. Do not begin concrete production until mixes have been reviewed by the Contracting Officer.

C.

Design mixes to provide normal weight concrete with the following properties, as indicated on the Drawings:

1.

4000 psi 28-day compressive strength: W/C ratio, 0.40 maximum (air-entrained concrete).

2.

Maximum size of Coarse Aggregate: 1 inch (size number 57 or 67).

3.

Total Air Content by volume: 4 - 7 1/2 percent.

4.

Minimum Cement Content: 520 pounds per cubic yard of concrete.

5.

Maximum Water Soluble Chloride Ion Content by weight of cement: 0.30 percent.

D.

Adjustment to Concrete Mixes:

1.

Mix design…