Attachment_02_-_Specifications.docx

USDA FOREST SERVICE, R-4

BUCKBOARD SEWER LIFT STATIONS RECONSTRUCTION

SECTION 010250 - CONSTRUCTION STAKING

1. GENERAL

SUMMARY

This work shall consist of the construction staking of utilities in accordance with the Drawings and Specifications. The work includes the furnishing of all labor, equipment, instruments, materials, transportation and other incidentals necessary to complete the construction staking in accordance with these specifications and acceptable engineering practice.

QUALITY CONTROL

Construction staking shall be accomplished under the direction of a Civil Engineer, Engineering Technician, or Land Surveyor closely associated and familiar with construction staking; periodic visits to the project site are required.

MEASUREMENT AND PAYMENT

Measurement shall be lump sum for surveying and staking the project through all phases of construction.

PRODUCTS

GOVERNMENT-FURNISHED SURVEY CONTROL SHEETS

The Government will provide the contractor with a set of survey control sheets showing horizontal and vertical control for site to be staked. The Government will provide the Contractor with layout information that will include:

Control Points - Northing, Easting, Existing Elevations.

Buildings and Other Structures - Northing, Easting, and Finish Elevations for corners of buildings, other structures (septic tanks, fencing, etc).

Utility Lines - Northing, Easting, and Existing Ground Elevations for centerline of utilities (Water Line, Sewer Line, Electrical Lines).

STAKES

Identification stakes and hubs shall be of sufficient length and width to provide and solid set in the ground and to provide space for marking above ground when applicable. Other dimensions and materials may be used, such as steel reinforcing bars, wire flagging and markers, and metal pins, if approved in writing by the Contracting Officer (CO). The top 2 inches of all slope, guard, reference, clearing, and structure stakes shall be painted or marked with plastic flagging. Colors used on stakes or for flagging shall be as follows:

SURVEY NOTE PAPER AND BOOKS

Paper for survey notes shall be moisture-resistant paper. Notes shall be contained in books with covers that will protect the contents and retain the pages in numerical sequence during field use. Field notebooks or note paper shall be furnished by the contractor.

EXECUTION

GENERAL

The Contractor shall be required to provide all necessary staking and control for all phases of construction. The contractor shall use the data and information shown on the project drawings to establish the location of all facilities to be constructed under this contract. The Contractor may choose any method of establishing horizontal and vertical controls provided the following minimum precision and accuracy requirements are met.

Accuracy requirements:

Minimum position close; 1/1000 Vertical closure: 0.05 ft (vertical)/station (100 feet horizontal) Cross section and slope stake precision:

Allowable deviation of cross section line projection from a true perpendicular to tangents, a true bisector of angle points, or a true radius of curves: +/-3 degrees.

Cross section topography measurements shall be taken so that variations in ground form a straight line connecting the cross section points will not exceed: 1.0 ft.

Horizontal and vertical accuracy for slope stake, slope stake references, and clearing limits. In feet or percentage of horizontal distance measured form centerline or reference stake, whichever is greater. Slope reference stakes and slope stakes: 0.15 ft or 0.6%. Clearing limits: 1.0 ft.

ESTABLISHING AND REFERENCING IMPROVEMENT LOCATIONS

Waterline, Sewerline, & other Utilities Waterline, Sewerline, & other Utilities shall be staked at the locations shown on the drawings with the specified minimum burial depth. Waterline and sewerline elevations shall be accurately staked to provide for drainage as indicated on the drawings. Grade stakes shall be established as necessary to provide the control for the construction work.

Buildings and Structures Slope stakes and slope stake references shall be established at each corner and as necessary to provide adequate construction control.

DISCREPANCIES

The contractor shall compare the staked centerline horizontal and vertical alignment with the design data. Differences between previously recorded and observed elevations of bench marks shall be referred to the Contracting Officer. Differences in centerline profile elevations exceeding 1 foot at any two or more consecutive points shall be reported to the contracting Officer for evaluation and possible revision. Staking of these areas shall be deferred until the Contacting Officer resolves these differences.

VERTICAL CONTROL

Vertical control for construction shall be as referenced on the Drawings.

MARKING STAKES

All stakes shall be legibly marked, in the format agreed upon with the Contracting Officer, with a stake pencil that leaves an imprinted or with waterproof ink. Marking shall conform to the nomenclature below;

SURVEY NOTES

All survey data shall be neatly recorded in survey books. All survey notes shall become the property of the Forest Service. Errors shall be deleted by lining out. Date, crew names and positions, instrumentation, and weather shall be recorded in the notes at the beginning of each day’s work. The party chief shall sign or initial each page of the notes immediately after the last entry for each day’s work.

Electronically recorded survey notes shall be consecutively numbered and headed to identify the contents. The notes shall be supported and accompanied by a bound book that records the project name and for each day identifies date, crew names and positions, instrumentation, weather, type of survey, stationing of sections between which survey was performed, and survey data or sketched that cannot be electronically recorded. The party chief shall sign or initial the electronically recorded notes and Day Book immediately after the last entry for each day’s work.

END OF SECTION 010250

May 2014

CONSTRUCTION STAKING 010250-4

BUCKBOARD SEWER LIFT STATIONS RECONSTRUCTION

SECTION 011250 - MEASUREMENT AND PAYMENT

1. GENERAL

SUMMARY

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, labor, materials, equipment, and incidentals necessary to successfully complete the project will be considered as included in the payment for items shown. This section defines the method of measurements and basis of payment for work items listed in the Schedule of Items.

When more than one class, size, type, thickness, etc. is specified in the Schedule of Items for any pay item, suffixes will be added to the item number to differentiate between the pay items.

DETERMINATION OF QUANTITIES

The following measurements and calculations shall be used to determine contract quantities for payment.

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

For excavation or embankment volumes, the average end area method shall be used to compute volumes. However, if in the judgment of the Contracting Officer (CO), the average end area method is impractical, measurement shall be made by volume in hauling vehicles or by other three-dimensional methods.

For Structures, they shall be measured according to neat lines shown on the drawings or as altered by the CO, in writing, to fit field conditions.

For items that are measured by the linear foot, such as pipe culverts, fencing, guardrail, piping, utilities, and underdrains, measurements shall be made parallel to the base or foundation upon which the structures are placed.

For aggregates weighed for payment, the tonnage shall not be adjusted for moisture content, unless otherwise provided for.

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 shall be accepted.

Earthwork Tolerances - Adjustments of horizontal or vertical alignment, within the tolerances specified in this contract, or shifts of balance points up to 100 feet shall be made by the contractor as necessary to produce the designed sections and to balance earthwork. Such adjustments shall not be considered as "Changes."

UNITS OF MEASUREMENT

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

Acre: Make longitudinal and transverse measurements for area computations horizontally.

50lb Bag: Measurement will be for the actual number of 50lb bags of standard bentonite grout.

94lb Bag: Measurement will be for the actual number of 94lb bags of standard cement or grout.

Cubic Yard (CY): A measurement computed by one of the following methods:

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

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

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.

Each (EA): One complete unit, which may consist of one or more parts.

Gallons (GAL): The quantity shall be measured by any of the following methods:

Measured volume in container.

Metered volume by approved metering system.

Commercially package volume.

Hour (HR): Measurement will be for the actual number of hours (or fraction thereof) ordered by the Contracting Officer and performed by the contractor.

Linear Foot (LF): Measurement of work along its length from point-to-point; parallel to the base or foundation. Do not measure overlaps.

Lump Sum (LS): One complete unit.

Mile: Measured horizontally along the centerline of each roadway, approach, or ramp.

Pound (LB): For sacked or packaged material, measurement will be the net weight as packed by the manufacturer.

Square Foot (SF): Measured on a plane parallel to the surface being measured.

Square Yard (SY): Measured on a plane parallel to the surface being measured.

Ton: Measured as a short ton consisting of 2,000 pounds.

METHOD OF MEASUREMENT

One of the following methods of measurement for determining final payment is designated on the Schedule of Items for each pay item:

ACTUAL QUANTITIES (AQ) - These quantities are determined from actual measurements of completed work.

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:

As a result of changes in the work authorized by the CO.

As a result of the CO determining that errors exist in the original design that cause a pay item quantity to change by 15 percent or more.

As a result of the Contractor submitting to the CO 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.

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 shall not be measured.

STAKED QUANTITIES (SQ) - These quantities are determined from staked measurements prior to construction.

VEHICLE QUANTITIES (VQ) - These quantities are measured or weighed in hauling vehicles.

PRODUCTS (NOT APPLICABLE)

EXECUTION (NOT APPLICABLE)

END OF SECTION 011250

May 2014

MEASUREMENT AND PAYMENT 011250-3

USDA FOREST SERVICE, R-4

BUCKBOARD SEWER LIFT STATIONS RECONSTRUCTION

SECTION 011900 - MOBILIZATION

1. GENERAL

SUMMARY

This item is intended to compensate the Contractor for operations including, but not limited to, those necessary for the movement of personnel, equipment, supplies, and incidentals to the project site; for payment of premiums for bonds and insurance for the project; and for any other work and operations which must be performed or costs that must be incurred incident to the initiation of meaningful work at the site and for which payment is not otherwise provided for under the contract.

MEASUREMENT AND PAYMENT

The measurement shall be lump sum for mobilization. Payment shall be as follows:

Bond premiums will be reimbursed after receipt of the evidence of payment.

50% of the lump sum, not to exceed 5% of the original contract amount, will be paid following completion of 5% of the original contract amount not including mobilization and bond premiums.

Payment of the remaining portion of the lump sum, up to 10% of the original contract amount, will be paid following completion of 10% of the original contract amount not including mobilization and bond premiums.

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

Progress payments for mobilization and preparatory work shall be subject to retainage.

PRODUCTS (NOT USED)

EXECUTION (NOT USED)

END OF SECTION 011900

May 2014

MOBILIZATION 011900-0

USDA FOREST SERVICE, R-4

BUCKBOARD SEWER LIFT STATIONS RECONSTRUCTION

SECTION 013300 - SUBMITTAL PROCEDURES

1. GENERAL

SUMMARY

This Section includes administrative and procedural requirements for submitting Shop Drawings, Product Data, Samples, and other miscellaneous submittals. See Table 013300-1 for a summary of required submittals.

See other specification section within this package for additional requirements on submittal.

SUBMITTAL PROCEDURES

Coordination: Coordinate preparation and processing of submittals with performance of construction activities.

Coordinate transmittal of different types of submittals for related parts of the Work so processing will not be delayed because of need to review submittals concurrently for coordination.

The Contracting Officer (CO) reserves the right to withhold action on a submittal requiring coordination with other submittals until related submittals are received.

Processing Time: Allow enough time for submittal review, including time for re-submittals, as follows. Time for review shall commence on CO's receipt of submittal.

Initial Review: Allow 14 days for initial review of each submittal. Allow additional time if processing must be delayed to permit coordination with subsequent submittals. CO will advise Contractor when a submittal being processed must be delayed for coordination.

If intermediate submittal is necessary, process it in same manner as initial submittal.

Allow 14 days for processing each re-submittal.

No extension of the Contract Time will be authorized because of failure to transmit submittals enough in advance of the Work to permit processing.

Identification: Place a permanent label or title block on each submittal for identification.

Indicate name of firm or entity that prepared each submittal on label or title block.

Provide a space on label or beside title block to record Contractor's review and approval markings and action taken by CO.

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

Project name.

Date.

Name and address of Contractor.

Name of manufacturer.

Unique identifier, including revision number.

Number and title of appropriate Specification Section.

Drawing number and detail references, as appropriate.

If more than one item is shown on submittal sheet, identify item.

Deviations: Highlight, encircle, or otherwise identify deviations from the Contract Documents on submittals.

Additional Copies: Unless additional copies are required for final submittal, and unless CO observes noncompliance with provisions of the Contract Documents, initial submittal may serve as final submittal.

Use for Construction: Use only final submittals with mark indicating action taken by CO in connection with construction.

MEASUREMENT AND PAYMENT

No separate measurement and/or payment will be made for this section. Payment shall be included with work shown in the schedule of items.

PRODUCTS

ACTION SUBMITTALS – (Submittals requiring CO approval) General: Prepare and submit Action Submittals required by individual Specification Sections.

Number of Copies: Submit three copies of each submittal, unless otherwise indicated. CO will return two copies. Mark up and retain one returned copy as a Project Record Document.

Product Data: Collect information into a single submittal for each element of construction and type of product or equipment.

If information must be specially prepared for submittal because standard printed data are not suitable for use, submit as Shop Drawings, not as Product Data.

Mark each copy of each submittal to show which products and options are applicable.

Include the following information, as applicable:

Manufacturer's written recommendations.

Manufacturer's product specifications.

Manufacturer's installation instructions.

Manufacturer's catalog cuts.

Wiring diagrams showing factory-installed wiring.

Compliance with recognized trade association standards.

Compliance with recognized testing agency standards.

Shop Drawings: Prepare Project-specific information, drawn accurately to scale. Do not base Shop Drawings on reproductions of the Contract Documents or standard printed data.

Preparation: Include the following information, as applicable:

Dimensions.

Identification of products.

Fabrication and installation drawings.

Roughing-in and setting diagrams.

Wiring diagrams showing field-installed wiring, including power, signal, and control wiring.

Notation of dimensions established by field measurement.

Wiring Diagrams: Differentiate between manufacturer-installed and field-installed wiring.

Contractor's Construction Schedule: The contractor shall submit a Construction Schedule, for approval by CO, in accordance with the contract provisions within 5 day of commencement of work.

Samples: Prepare physical units of materials or products, including the following:

Samples for Initial Selection: Submit manufacturer's color charts consisting of units or sections of units showing the full range of colors, textures, and patterns available.

INFORMATIONAL SUBMITTALS – (Submittals NOT requiring CO approval) General: Prepare and submit Informational Submittals required by other Specification Sections.

Number of Copies: Submit three copies of each submittal, unless otherwise indicated. CO will not return copies.

Certificates and Certifications: Certificates and certifications shall be signed by an officer or other individual authorized to sign documents on behalf of that entity.

Test and Inspection Reports: Comply with requirements in Section 014100 "Quality Control."

Material Test Reports: Prepare reports written by a qualified testing agency, on testing agency's standard form, indicating and interpreting test results of material for compliance with requirements.

Field Test Reports: Prepare reports written by a qualified testing agency, on testing agency's standard form, indicating and interpreting results of field tests performed either during installation of product or after product is installed in its final location, for compliance with requirements.

Maintenance Data: Prepare written and graphic instructions and procedures for operation and normal maintenance of products and equipment.

Manufacturer's Instructions: Prepare written or published information that documents manufacturer's recommendations, guidelines, and procedures for installing or operating a product or equipment. Include name of product and name, address, and telephone number of manufacturer.

EXECUTION

GENERAL

Review each submittal and check for compliance with the Contract Documents. Note corrections and field dimensions. Mark with approval stamp before submitting to CO.

Approval Stamp: Stamp each submittal with a uniform, approval stamp. Include Project name and location, submittal number, Specification Section title and number, name of reviewer, date of Contractor's approval, and statement certifying that submittal has been reviewed, checked, and approved for compliance with the Contract Documents.

CO will not review submittals that do not bear Contractor's approval stamp and will return them without action.

Submittals not required by the Contract Documents will not be reviewed and may be discarded.

Substitutions – Whenever materials, products, and equipment are listed by name or brand in the specifications and/or on the drawings, it is used as a measure of quality, utility, or standard. If the Contractor prefers to use any other brand or manufacturer of same quality, appearance and utility to that specified, he shall request substitution as provided below, not less than 30 days before the planned installation of the item. The Contracting Officer will approve or disapprove the request for substitution.

Requests for substitutions will only be considered if contractor submits the following:

Complete technical data including drawings, complete performance specifications, test data, samples and performance tests of the article proposed for substitution. Submit additional information if required by Contracting Officer. All items in the above information shall be circled, tagged, or marked in some way to indicate all deviations or differences which the proposed item differs from the originally specified item.

Similar data as above for item originally specified. All items shall be marked to identify where/how the proposed substitution will differ.

A statement by the Contractor that the proposed substitution is in full compliance with the contract documents, applicable codes, and laws.

The Contractor shall be responsible for any effect upon related work in the project for any substitution and shall pay any additional costs generated by any substitutions.

SUBMITTAL SCHEDULE – Submittals shall be made as required by and called for in the drawings and specifications. The following table is a summary of the required submittals for the project - the table is to assist the Contractor and may not be all inclusive – additional submittals may be required by specific specifications:

TABLE 013000-1

END OF SECTION 013300

SUBMITTAL PROCEDURES 013300-5

USDA FOREST SERVICE, R-4

BUCKBOARD SEWER LIFT STATIONS RECONSTRUCTION

SECTION 014100 - QUALITY CONTROL

1. GENERAL

SUMMARY

This work shall consist of providing quality control in conformance with the inspection, testing, and product certification requirements of this contract to ensure compliance with the drawings and specifications. The Contractor shall provide all personnel, equipment, tests, and reports necessary to meet the requirements of the contract.

QUALITY CONTROL

The Contractor shall provide and maintain a quality control system that will ensure all services, supplies, and construction work required under this contract conforms to the contract requirements. The Contractor shall perform, or cause to be performed, the sampling, inspection, and testing required to substantiate that all services, supplies, and construction conform to the contract requirements.

Special Tests and Inspections: Contractor will engage a testing agency to conduct required special tests and inspections. The Contractor shall authorize the testing agency to perform the required testing and inspections on the work completed. The authority shall include:

Testing agency will interpret tests and inspections and state in each report whether tested and inspected work complies with or deviates from the Contract Documents.

Testing agency will re-test and re-inspect corrected work.

Retesting/Reinspecting: Contractor shall provide quality-control services for retesting and reinspection for replaced construction work or for work that failed to comply with the requirements under the contract.

SUBMITTALS

Contractor Quality Control Plan Permits, Licenses, and Certificates Test and Inspection Reports As-Built Drawings

MEASUREMENT AND PAYMENT

No separate payment will be made for the work included under this section; rather payment shall be considered to be included in the items of work listed in the Schedule of Items.

PRODUCTS (Not Applicable)

EXECUTION

QUALITY CONTROL SYSTEM

General: Perform required testing, inspections, sampling, and similar services per direction specified in the contract drawings and specifications and in accordance with established industry standards.

CONTRACTOR QUALITY CONTROL PLAN

At the time of the preconstruction conference, the Contractor shall submit for approval a written Contractor Quality Control 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.

No change in the approved plan may be made without written concurrence by the Contracting Officer.

At a minimum, the plan shall include the following:

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

A copy of a letter of direction to the Contractor's Quality Control Supervisor outlining assigned duties.

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

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

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

TEST AND INSPECTION REPORTS

Submit three copies of complete test results no later than three calendar days after the test was performed.

Submit failing test results and proposed remedial actions within four hours of noted deficiency.

Testing and Inspection Reports shall include the following:

Date of issue.

Project title and number.

Name, address, and telephone number of testing agency.

Dates and locations of samples, tests, or inspections.

Names of individuals performing tests and inspections.

Reference Specification Section(s).

Complete test or inspection data.

Test and inspection results and an interpretation of test results.

Ambient conditions at time sample was taken, tested, or inspected.

Comments or professional opinion on whether tested or inspected work complies with the Contract Document requirements.

Name and signature of laboratory inspector.

Recommendations on retesting and reinspecting.

PERMITS, LICENSES, AND CERTIFICATES

For Contracting Officer’s records, submit copies of permits, licenses, certifications, inspection reports, releases, jurisdictional settlements, notices, receipts for fee payments, judgments, correspondence, records, and similar documents, established for compliance with standards and regulations relevant to the on performance of the work.

AS-BUILT DRAWINGS

The Contractor shall maintain a set of the contract drawings depicting as-built conditions. These drawings shall be maintained in a current condition and shall be available for review. All variations from the original contract drawings shall be indicated in red on the drawings. Upon completion of the contract work, as-built drawings shall be submitted to the Contracting Officer.

SAMPLING, TESTING, AND CERTIFICATION REQUIREMENTS

Sampling, testing, and Certification requirements and frequency for specific items shall be as specified in the drawings and specification. The following table is a summary of the required sampling, testing, and certification for the project - the table is to assist the Contractor, but may not be all inclusive – additional submittals may be required by specific specification section:

TABLE 014100-1

Item

Subsection Certification or Test Required

Frequency

END OF SECTION 014100

QUALITY CONTROL 014100-4

BUCKBOARD SEWER LIFT STATIONS RECONSTRUCTION

SECTION 015100 - TEMPORARY TRAFFIC CONTROL

1. GENERAL

SUMMARY

This work consists of furnishing, maintaining, relocating, and removing temporary traffic control and safety devices and services for the control and protection of public traffic near the project site. Prior to beginning construction the Contractor shall submit a traffic control and safety plan to the Contracting Officer for review and approval. As a minimum the traffic control and safety plan shall address signing in and near the project site and at all road and highway junctions that will be used as access to the project site, material sources, water sources and disposal sites as well as any other areas where the Contractor will be performing work under this contract.

MEASUREMENT AND PAYMENT

No separate measurement or payment will be made for work specified in this section. All work will be included in other items listed in the Schedule of Items.

PRODUCTS

TRAFFIC CONTROL

Traffic control and safety device (barricades, cones, tubular markers, vertical panels, drums, portable barriers and so forth) designs and configurations shall conform to the MUTCD. When interpreting the requirements in the applicable MUTCD sections, replace the word should with the word shall.

EXECUTION

GENERAL

All signs shall be constructed to comply with the requirements of MUTCD for the construction operations. Install and maintain temporary traffic control and safety devices adjacent to and within the project as shown on the approved traffic control and safety plan and MUTCD. Install and maintain traffic control and safety devices as follows:

Furnish and install traffic control and safety devices before the start of construction operations.

Install only those traffic control and safety devices needed for each stage or phase.

Relocate temporary traffic control devices as necessary.

Immediately replace any device that is lost, stolen, destroyed, or inoperative.

Keep temporary traffic control and safety devices clean.

Remove all temporary traffic control devices upon contract completion or when approved.

Barricades Perform the work described under MUTCD Part VI. Use type III or IV reflective sheeting. Use wood, metal, or plastic barricades. When type II barricades are used, use barricades that collapse when tipped over.

Construction Signs Use type III or IV reflective sheeting. Use wood, metal, fiberglass, or other approved posts.

END OF SECTION 015100

TEMPORARY TRAFFIC CONTROL 015100-2

BUCKBOARD SEWER LIFT STATIONS RECONSTRUCTION

SECTION 023701 - SEDIMENT AND EROSION CONTROL MEASURES

1. GENERAL

SUMMARY

The work under this section consists of furnishing all necessary labor, equipment, materials, and performing all operations in connection with construction sediment and control measures.

All erosion and sediment control measures are to be placed prior to any disturbance caused by grading and or excavation and shall conform to the requirements of the appropriate regulatory agency for the State.

The Contractor shall be solely responsible for ensuring that erosion and sediment control measures are implemented and maintained at the site.

Soil disturbing activities include but are not limited to: Clearing and grubbing, excavation for utilities and foundations, roadway and parking lot construction, construction or modification of site drainage, grading, and preparation for final seeding.

SUBMITTALS

The Contractor shall be required to submit a sediment and erosion control plan in accordance with this specification for approval by the Contracting Officer 2 weeks prior to start of work.

MEASUREMENT AND PAYMENT

No separate measurement and/or payment will be made for this section. Payment shall be included with work shown in the schedule of items.

PRODUCTS

SYNTHETIC FILTER FABRIC FOR SILT FENCES.

Pervious sheet of polypropylene, nylon, or polyethylene fabric conforming to the following physical and hydraulic characteristics:

Filter fabric should contain ultraviolet ray inhibitors and stabilizers to provide a minimum of 6 months of expected usable construction life at a temperature range of 0 to 120 F.

Support Posts: 4 foot - 2 x 2 wood.

STRAW BALES

Oat or wheat straw, free from weeds, viable weed seeds, foreign matter detrimental to plant life, and dry.

Grass hay bales are not acceptable.

In order to prevent deterioration of the bindings, all bales shall be either wire-bound or string-tied so that bindings are oriented around the sides rather than along the tops and bottoms of the bales.

STRAW WATTLES OR ROLLS

Furnish straw wattles or rolls that are manufactured from weed free straw and wrapped in a tubular photodegradable plastic netting made from 85% high density polyethylene, 14% ethyl vinyl acetate and 1% color for UV inhibition. Conform to the following:

EXECUTION

CONSTRUCTION

Install straw bales at local drainage ways to prevent silt intrusion upon adjacent drainage courses. Remove straw bales following establishment of vegetation cover and utilize as mulch at swales or on steep slopes.

Prior to construction, install silt fence along the downhill construction limits to prevent silt intrusion upon adjacent land.

Install sediment and erosion control measures on the down slope toe of all top soil stock piles.

Maintain and remove all erosion controls as specified.

Temporary seeding shall be placed on exposed surfaces that will not be brought to final grading or permanent cover treatment within 30 days of the exposure to reduce erosion and sedimentation by stabilizing exposed soils. Seeded areas shall be checked regularly for bare spots, washouts, and healthy growth to assure that a good stand of grass is being maintained. Reseed areas that fail to establish vegetation cover as soon as such areas are identified.

DUST CONTROL

In areas subject to surface and air movement of dust, where on-site or off-site damage is likely to occur, one or more of the following preventive measures shall be taken for dust control:

Minimize the period of soil exposure through the use of temporary ground cover and other temporary stabilization practices.

Sprinkle the site with water until surface is wet. Repeat as needed.

SILT FENCE

Silt fences are appropriate for the following general locations:

Immediately upstream of the point(s) of runoff discharge from a site before flow becomes concentrated. Below disturbed areas where runoff may occur in the form of overland flow.

Along the down slope toe of all top soil stock piles.

Materials.

Utilize standard strength synthetic filter fabric for sediment barriers. The filter fabric shall be purchased in a continuous roll cut to the length of the barrier to avoid the use of joints. When joints are necessary, filter cloth shall be spliced together only at a support post, with a minimum 6 inch overlap, and securely sealed.

The standard strength filter fabric shall be stapled or wired to the fence and 6 inches of the fabric shall be extended into the ground. Filter fabric shall not be stapled to existing trees.

Support posts shall be spaced at a maximum 6 feet and driven securely into the ground a minimum of 24 inches.

Filter fabric shall be buried a minimum of 12 inches.

The height of a silt fence shall not exceed 36 inches. Higher fences may impound volumes of water sufficient to cause failure of the structure.

Maintenance.

Silt fences and filter barriers shall be inspected immediately after each rainfall and at least daily during prolonged rainfall.

Silt fences shall be inspected for depth of sediment, tears, and to see if the fabric is securely attached to the fence posts, and to see that the fence posts are firmly in the ground. Any deficiencies shall be repaired immediately.

Should the fabric on a silt fence of filter barrier decompose or become ineffective prior to the end of the expected usable life and the barrier still be necessary, the fabric shall be replaced promptly.

Sediment deposits should be removed after each storm event and/or when deposits reach approximately 1/3 the height of the barrier or when the sediments limit or prevent the flow of water through the fabric hydraulic.

Any sediment deposits remaining in place after the silt fence or filter barrier is no longer required shall be dressed to conform with the existing grade, prepared, and seeded.

STRAW BALE EROSION CONTROL FENCE

Straw bale erosion control fences are appropriate for the following general locations:

Sheet flow applications: Straw bales shall be placed in a single row, lengthwise on the contour with ends of adjacent bales tightly abutting one another.

Channel flow applications: Straw bales shall be placed in a single row, lengthwise and oriented perpendicular to the direction of flow with ends of adjacent bales tightly abutting one another. The barrier shall be extended to such a length that the bottoms of the end bales are higher in elevation than the top of the lowest middle bale to assure that sediment laden runoff will flow either through or over the barrier but not around it.

The barrier shall be entrenched and backfilled. A trench shall be excavated the width of a bale and the length of the proposed barrier to a minimum depth of 4 inches. After the bales are staked and chinked, the excavated soil shall be backfilled against the barrier. Backfill shall conform to the ground level of the downhill side and shall be built up to 4 inches against the uphill side of the barrier.

Each bale shall be securely anchored by at least 2 stakes or rebar driven through the bale. The first stake in each bale shall be driven toward the previously laid bale to force the bales together. Stakes or rebar shall be driven a minimum of 12 inches into the ground or deep enough into the ground to securely anchor the bales, whichever is greater.

The gaps between bales shall be chinked (filled by wedging with straw to prevent water from escaping between the bales). Loose straw scattered over the area immediately uphill from a straw bale barrier tends to increase barrier efficiency.

STRAW WATTLE OR ROLL

Straw wattles shall be installed in accordance to manufacturer’s installation guidelines.

At a minimum:

The wattle shall be entrenched and backfilled. A trench shall be excavated the width of the straw waddle and the length of the proposed barrier to a depth of 2-3 inches.

Each wattle shall be securely anchored by at least one 18-24 inch stake every 3-4 feet and with a stake on each end. Stakes shall be driven perpendicular to slope face through the middle of the wattle until 2-3 inches remains exposed above the waddle.

After the wattles are staked, compact excavated soil against the uphill side of the barrier.

Adjacent wattles should tightly abut.

MAINTENANCE

Inspection shall be frequent and repair or replacement shall be made promptly as needed. Straw bale carriers shall be removed when they have served their usefulness, but not before the upslope areas have been permanently stabilized.

END OF SECTION 023701

May 2014

SEDIMENT AND EROSION CONTROL MEASURES 023701-5

USDA FOREST SERVICE, R-4

BUCKBOARD SEWER LIFT STATIONS RECONSTRUCTION

SECTION 024100 - WASTE MATERIAL DISPOSAL

1. GENERAL

SUMMARY

This Section includes the loading, handling, hauling, and placing of excess excavation material, unsuitable excavation material, clearing and grubbing debris, and construction and demolition debris.

MEASUREMENT AND PAYMENT

There will be no separate measurement or payment for work in this Section. Waste material disposal is considered incidental to other items of work shown in the Schedule of Items.

PRODUCTS – NOT APPLICABLE

EXECUTION

WASTE MATERIAL TO BE HAULED TO A DISPOSAL AREA

All excavated material not used in the construction of embankments or backfilling of trenches, or other excess material resulting from the excavation and embankment operation shall be hauled to a disposal area.

All unsuitable excavated material and oversize boulders shall be hauled to a disposal area.

All stumps, slash and other clearing and grubbing debris shall be hauled to a disposal area.

Disposal Area: All waste material above shall be hauled to the disposal area on Government property as designated by the Contracting Officer.

Waste material shall be piled and compacted to form a dense layer.

The size and shape of the piled waste material shall be designated by the Contracting Officer.

The piled material shall be covered with soil to a uniform depth of six inches minimum and sloped to 2:1 or flatter.

The disposal site shall be left suitable for seeding.

WASTE MATERIAL TO BE HAULED TO A LANDFILL

All demolition materials, garbage, and other refuse generated shall be removed from the project site and legally disposed off of Government property in an approved landfill.

The contractor is responsible for all costs and permits associated with landfill disposal.

The Government is not responsible for waste material upon its departure from the project site.

END OF SECTION 024100

WASTE MATERIAL DISPOSAL 024100-2

BUCKBOARD SEWER LIFT STATIONS RECONSTRUCTION

SECTION 024102 - REMOVAL AND DISPOSAL OF STRUCTURES AND OBSTRUCTIONS

1. GENERAL

SUMMARY

Includes removal disposal, and backfilling of existing sewer lift stations, wet wells, sewer lines and all other items to the extent shown on the Drawings. This item also includes scarifying and regrading the area around features and structures removed.

Related Sections Include the Following:

Section 024100 “Waste Material Disposal.”

Section 329206 “Seeding.”

MEASUREMENT AND PAYMENT

Payment will be lump sum for removal and disposal of structures and obstructions, including demolition, excavation, backfill, removal, hauling and all incidentals and work required to complete this item.

PRODUCTS

SELECT BACKFILL

Select backfill shall be native or imported soil, sand, or granular soil free of stones larger than 6 inches in greatest dimension.

EXECUTION

SALVAGE

Items to be salvaged include:

The existing motors and compressors shall be salvaged from the existing lift stations. Remove and provide to the government.

GENERAL

Topsoil stripping and storage, if required, shall comply with the applicable specification.

The Contractor may use any means he may elect to remove the structure or items shown on the Drawings to be removed, as long as he provides for the safety of the public and preservation of the surrounding site and structures.

Existing wet wells shall be completely removed, including all concrete below grade. All wood, concrete, and metal materials to be removed shall be broken into sufficiently small pieces to enable handling and disposal.

Where a new lift station will be installed at the location of the existing wet well, the bottom of the excavation shall be prepared according to Section 312000 “Earthwork.”

Where a new lift station will not be installed at the location of the existing wet well, the excavation shall be backfilled and the surrounding ground restored to as near normal conditions as practicable in accordance with these specifications.

Where a new lift station will not be installed at the location of the existing wet well: Backfill for removed items may be excess material from other excavation or borrow from an approved source.

Backfill shall be brought up in 12-inch compacted layers.

Compaction shall be by mechanical tampers, with at least three passes over the entire surface.

Maximum size of rock in backfill shall be 8 inches.

Backfill shall be compacted and rounded 6 inches above the natural ground.

If the backfill is not in an existing roadway or parking area, and at least 20 feet away from any proposed structure, the backfill shall be as specified above, except backfill shall be graded to blend with the natural ground and each layer compacted to 85 percent of the optimum dry density determined by AASHTO T-99, Method C.

In areas where backfill is in graveled or paved surface roadways, or within 20 feet of a proposed structure, the backfill shall be as specified above, except it shall be terminated at the grade shown on the drawings and each layer compacted to 95 percent of the optimum dry density determined by AASHTO T-99, Method C. Completion of backfill shall be in accordance with the applicable surfacing specifications.

When topsoil replacement is required, backfill and compaction shall be as specified above, except the backfill shall terminate 6 inches below the natural ground. Placement of topsoil, when required, shall comply with the applicable specification.

Excessive settlement or other evidence of improper backfill shall be corrected by reopening the excavation to the depth required for proper refilling and compaction.

WET WELL PUMPING

Prior to removal, the wet well shall be pumped by a commercial hauler with equipment for pumping and hauling human waste. Hauler shall have the necessary equipment to add water to the tank and break up solids in order to pump waste.

Disposal of wet well waste shall be at any sewage treatment facility approved by the State Department of Health. The Contractor shall be responsible to obtain permission to dump the waste in the treatment facilities and pay any fees required.

DISPOSAL

Disposal of debris shall comply with Section 024100 “Waste Material Disposal.”

FINISHING AND CLEANUP

After the area has been backfilled, the disturbed area shall be finish graded to present a natural appearance and cleaned up by removing all debris and materials left from the removal of items in this Section.

SEEDING

Seeding, if required, shall comply with Section 329206 “Seeding.”

END OF SECTION 024102

REMOVAL AND DISPOSAL OF STRUCTURES AND OBSTRUCTIONS 024102-3

BUCKBOARD SEWER LIFT STATIONS RECONSTRUCTION

SECTION 033020 - CONCRETE FROM PACKAGED DRY MIX FOR MINOR STRUCTURES

1. GENERAL

SUMMARY

This Section includes constructing small concrete structures such as thrust blocks, pipe supports, and test hole fillers.

MEASUREMENT AND PAYMENT

There will be no separate measurement or payment for work in this Section. Concrete from packaged dry mix is considered incidental to other items of work shown in the Schedule of Items.

PRODUCTS

MATERIALS

Concrete Dry Mix:

Design: ASTM C 387, made using dry pre-portioned, blended and bagged mix.

Minimum 28-day Compressive Strength: 4000 psi Product: Sakrete Concrete Mix, as manufactured by US Mix Products Company, or an approved equal.

All reinforcement bars shall be deformed billet steel conforming to the requirement of ASTM A615, Grade 60.

Water: Clean and free from alkali and other deleterious materials.

EXECUTION

CONCRETE INSTALLATION

Mixing:

Mix dry concrete and water thoroughly according to the manufacturer.

Mixing Equipment: Mechanical mixer or wheel barrow.

Place concrete while fresh; any concrete in which initial set has begun shall be wasted.

Placing: Place the fresh concrete in the forms and work as necessary to remove the air pockets.

Finishing: Apply medium trowel finish to exposed concrete surfaces.

Protection From Cold: Keep the air temperature surrounding the fresh concrete above 40ºF for a period of five days after the concrete is placed.

Curing: If determined necessary by the Contracting Officer, cover exposed surfaces with plastic sheeting…