Lower_Falls_1205K319R0001_Attachments_.pdf

CONSTRUCTION STAKING 010250-1

USDA FOREST SERVICE, R6

LOWER FALLS CG TOILET REPLACEMENT

SECTION 010250 - CONSTRUCTION STAKING

All work for this project is within the Mount Adams Ranger District, located on the Gifford Pinchot National Forest.

SPECIFICATIONS

A. Listed below:

Section 010250 - Construction Staking

Section 011250 - Measurement And Payment

Section 013300 - Submittal Procedures

Section 014100 - Quality Control

Section 023701 - Sediment And Erosion Control Measures

Section 024116 – Structure Demolition

Section 033020 - Concrete From Packaged Dry Mix For Minor Structures

Section 131110 - Pedestrian Timber Stairway

Section 133401 - Precast Concrete Vault Restroom

Section 133450 - Precast Concrete Vault Restroom Installation

Section 311000 – Clearing And Grubbing

Section 312000 – Earth Moving

Section 312010 - Select Granular Backfill

Section 312100 - Project Site Preparation And Grading

Section 312225 - Excavation & Embankment

Section 321200 - Hot-Mix Asphalt Paving

Section 321204 - Crushed Aggregate Base Or Surface Course

CONSTRUCTION STAKING 010250-2

Section 321713 – Removable Timber Bollards

PART 1 - GENERAL

SUMMARY

This work shall consist of the construction staking of roads, parking lots, parking spurs, pathways, and buildings 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.

Roads, Parking Areas - Northing, Easting, and Finish Elevations for subgrade centerline and edge of roads, and parking areas.

Buildings - Northing, Easting, and Finish Elevations for corners of buildings.

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:

Roads, pathways, parking lots, and parking spurs -Orange Buildings, excavation and grading -Yellow

CONSTRUCTION STAKING 010250-3

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

Access Roads, Pathways, Parking Spurs, and Parking lots:

Slope stakes (cut and fill catch points), clearing limits, and slope stake references shall be established on both sides of the centerline at each station established. Slope stakes and slope stake references shall be located on a line at right angles to tangents and on radial lines or curves. Slope stake catch points shall be located by using the grading plans and/or profiles, typical road section templates, as shown on the drawings and the information provided with staking points.

Slope stakes shall be set at 50-foot intervals, at significant breaks in the ground profile, culvert locations, and widening transition points. Slope stakes shall be set at 25 foot intervals around curves having a radius less than 100 feet.

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

CONSTRUCTION STAKING 010250-4

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;

PI Point of Intersection of tangents PC Point of curvature POC Point on curve Pt Point of tangency POT Point on tangent RP Reference point P P-line (preliminary location line) L L-line (final location line) BM Bench mark TBM Temporary bench mark BT Begin taper (any) ET End taper (any) C Cut F Fill L Centerline D Ditch W Width

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, CONSTRUCTION STAKING 010250-5 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

MEASUREMENT AND PAYMENT 011900-1

LOWER FALLS CG TOILET REPLACEMENT

SECTION 011250 - MEASUREMENT AND PAYMENT

PART 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."

MEASUREMENT AND PAYMENT 011900-2

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

MEASUREMENT AND PAYMENT 011900-3

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

SUBMITTAL PROCEDURES 013300-1

LOWER FALLS CG TOILET REPLACEMENT PROJECT

SECTION 013300 - SUBMITTAL PROCEDURES

PART 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 3 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 3 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.

SUBMITTAL PROCEDURES 013300-2

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 one (1) electronic copy of each submittal in pdf format, unless otherwise indicated. CO will return one (1) electronic copy. 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.

SUBMITTAL PROCEDURES 013300-3

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 one (1) copy 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, SUBMITTAL PROCEDURES 013300-4 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

Spec.

Section Section Title Subse ction Required Submittal

C,H General Specifications 1.4 A Traffic Control Plan 010250 Construction Staking 3.6 A Survey Notes 013300 Submittal Procedures 2.1 D Construction Schedule 014100 Quality Control 1.3 A Contractor quality control plan 014100 Quality Control 1.3 B Permits, Licenses, and Certificates 014100 Quality Control 1.3 C Test and inspection reports 014100 Quality Control 1.3 D As-Built drawings 015000 Temporary Facilities and Controls 1.3 D Fire Safety Program 023701 Sediment and Erosion Control 1.2 A Sediment and Erosion Control

Plan

SUBMITTAL PROCEDURES 013300-5

Spec.

Section Section Title Subse ction Required Submittal

024116 Sediment and Erosion Control 1.2 B Product Data 024116 Structure Demolition 1.4 B Proposed Protective Measures 024116 Structure Demolition 1.4 C Schedule of Building Demolition

Activities 024116 Structure Demolition 1.4 D Pre-Demolition Photos 024116 Structure Demolition 1.5 A Closeout Survey 312010 Select Granular Backfill 1.4 A Product Data 312010 Select Granular Backfill 1.4 B Compaction Test Results 321200 Hot Mix Asphalt Paving 1.2 A Product Data 321200 Hot Mix Asphalt Paving 1.2 B Job-Mix Designs 321200 Hot Mix Asphalt Paving 1.2 C Material Certificates 321204 Crushed Aggregate Base or Surface

Course

1.2 A Aggregate – Source, Gradation, Material Properties 321204 Crushed Aggregate Base or Surface

Course

1.2 B Compaction Test Results and

Proctor 321713 Removal Timber Bollard 1.2 B Product Data

END OF SECTION 013300

QUALITY CONTROL 014100-1

LOWER FALLS CG TOILET REPLACEMENT PROJECT

SECTION 014100 - QUALITY CONTROL

PART 1 - GENERAL

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 014100-2

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 one (1) copies of complete test results no later than three (3) calendar days after the test was performed.

Submit failing test results at the end of each work day, and proposed remedial actions for the noted deficiency. If failing test results were remedied on the same day, also provide at the end of each work day any documentation to prove those results.

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.

QUALITY CONTROL 014100-3

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

312000 3.15A Compaction Test – Subgrade under buildings

One test per building (vault)

312000 3.18A Compaction Test – Backfill/Fills under Buildings

One test every 600 S.F. area per lift, minimum of one test per building

312225 1.3B & 3.10B

Moisture-Density Relationship One Test for Each Soil Type Encountered

312225 1.3B & 3.10B

Compaction –Embankments (Method 4)

One test every 1,000 SF of embankment per lift 312225 1.3B &

3.10B Compaction – Subgrade One test every 5,000

SF of Subgrade 321200 3.7B Gradation and Asphalt Content One per 700 tons or min. 3 per project 321204 3.4A Compaction Tests – Road Base and

Surface Course One test for every 300

sq. yd. of aggregate

QUALITY CONTROL 014100-4

TABLE 014100-1

Item

Subsection Certification or Test Required

Frequency 321204 3.4A Compaction Tests – Aggregate Base for Concrete Slabs One test for each prefabricated building pad

END OF SECTION 014100

SEDIMENT AND EROSION CONTROL MEASURES 023701-1

LOWER FALLS CG TOILET REPLACEMENT PROJECT

SECTION 023701 - SEDIMENT AND EROSION CONTROL MEASURES

PART 1 - GENERAL

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.

General 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.

All products shall be certified weed-free.

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.

Product data, including weed-free certification.

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:

• Physical Properties

(Min.)

Requirement Test Method

• Grab Tensile, lbs. W120/F100 ASTM-D-4632

• Grab Elongation, % 15 ASTM-D-4632

• Mullen Burst, psi 275 ASTM-D-3786

SEDIMENT AND EROSION CONTROL MEASURES 023701-2

• Puncture, lbs. 65 ASTM-D-4833

• Trapezoidal Tear, lbs. 50 ASTM-D-4533

• UV Resistance, % 80 ASTM-D-4355

• AOS, US Sieve # 30/40 ASTM-D-4751

• Permittivity gal/min-sq. ft. 90 ASTM-D-4491

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:

Diameter 9 inches min.

Netting strand thickness 0.030 inches Netting knot thickness 0.055 inches Mass of netting 0.315 to 0.385 ounces per foot

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, and primarily downslope of all ground disturbance just outside the clearing limits and work areas.

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

SEDIMENT AND EROSION CONTROL MEASURES 023701-3

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.

SEDIMENT AND EROSION CONTROL MEASURES 023701-4

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.

SEDIMENT AND EROSION CONTROL MEASURES 023701-5

END OF SECTION 023701

June 2019

STRUCTURE DEMOLITION 024116-1

SECTION 024116 – STRUCTURE DEMOLITION

PART 1 - GENERAL

SUMMARY

Section Includes:

Demolition and removal of buildings and site improvements.

Removing below-grade construction.

Disconnecting, capping or sealing, and removing site utilities.

Salvaging items for reuse by Owner.

MATERIALS OWNERSHIP

Unless otherwise indicated, demolition waste becomes property of Contractor.

Historic items, relics, antiques, and similar objects including, but not limited to, cornerstones and their contents, commemorative plaques and tablets, and other items of interest or value to Owner that may be uncovered during demolition remain the property of Owner.

Carefully salvage in a manner to prevent damage and promptly return to Owner.

PRE-DEMOLITION MEETINGS

Pre-demolition Conference: Conduct conference at Project site.

SUBMITTALS

Proposed Protection Measures: Submit report, including Drawings, that indicates the measures proposed for protecting individuals and property; and for environmental protection, noise control, and dust control. Indicate proposed locations and construction of barriers.

Adjacent Buildings and Site Improvements: Detail special measures proposed to protect adjacent buildings and site improvements to remain.

Schedule of building demolition activities with starting and ending dates for each activity.

Pre-demolition photographs and/or video.

STRUCTURE DEMOLITION 024116-2

CLOSEOUT SUBMITTALS

Inventory of items that have been removed and salvaged.

QUALITY ASSURANCE

Hazardous Waste Recovery Technician Qualifications: Certified by EPA-approved certification program.

FIELD CONDITIONS

Buildings to be demolished will be vacated and their use discontinued before start of the Work.

Buildings immediately adjacent to demolition area will be occupied. Conduct building demolition so operations of occupied buildings will not be disrupted.

Provide not less than 72 hours' notice of activities that will affect operations of adjacent occupied buildings.

Maintain access to existing walkways, exits, and other facilities used by occupants of adjacent buildings.

Do not close or obstruct walkways, exits, or other facilities used by occupants of adjacent buildings without written permission from authorities having jurisdiction.

Conditions existing at time of inspection for bidding purpose will be maintained by Owner as far as practical.

Before building demolition, Owner will remove the following items:

No contents of the existing buildings will be removed.

There is no propane gas left in each of the propane tanks scheduled for demolition.

Hazardous Materials: It is not expected that hazardous materials will be encountered in the Work.

If materials suspected of containing hazardous materials are encountered, do not disturb;

immediately notify the Contracting Officer.

Composting Materials:

Dispose compost and composters at a suitable waste disposal site, in accordance with state, local and federal environmental requirements.

On-site storage or sale of removed items or materials is not permitted.

Arrange demolition schedule so as not to interfere with Owner's on-site operations.

STRUCTURE DEMOLITION 024116-3

MEASUREMENT AND PAYMENT

A. Measurement shall be for each (EA) structure demolished, including the removal and proper disposal of all materials off the project site.

PRODUCTS

PERFORMANCE REQUIREMENTS

Regulatory Requirements: Comply with governing EPA notification regulations before beginning demolition. Comply with hauling and disposal regulations of authorities having jurisdiction.

Standards: Comply with ANSI/ASSE A10.6 and NFPA 241.

SOIL MATERIALS

Satisfactory Soils: Comply with requirements in Section 312000 "Earth Moving."

EXECUTION

EXAMINATION

Verify that utilities have been disconnected and capped before starting demolition operations.

In accordance with OSHA regulations, perform an engineering survey of condition of building to determine whether removing any element might result in structural deficiency or unplanned collapse of any portion of structure or adjacent structures during building demolition operations.

Inventory and record the condition of items to be removed and salvaged.

PREPARATION

Salvaged Items: Comply with the following:

Clean salvaged items of dirt and demolition debris.

Pack or crate items after cleaning. Identify contents of containers.

Store items in a secure area until delivery to Owner.

Transport items to storage area designated by Owner or as indicated on Drawings.

Protect items from damage during transport and storage.

STRUCTURE DEMOLITION 024116-4

UTILITY SERVICES AND MECHANICAL/ELECTRICAL SYSTEMS

Existing Utilities to be disconnected: No water or electrical utilities serve these buildings.

Propane gas previously served these buildings but is since disconnected.

PROTECTION

Existing Facilities & Site Improvements: Protect adjacent walkways, loading docks, building entries, and other building facilities during demolition operations. Maintain exits from existing buildings.

Temporary Shoring: Provide and maintain interior and exterior shoring, bracing, or structural support to preserve stability and prevent unexpected movement or collapse of construction being demolished.

Existing Utilities to Remain: Maintain utility services to remain and protect from damage during demolition operations. Do not interrupt existing utilities serving adjacent occupied or operating facilities unless authorized in writing by Owner and authorities having jurisdiction.

Temporary Protection: Erect temporary protection, such as walks, fences, railings, canopies, and covered passageways, where required by authorities having jurisdiction and as indicated. Comply with requirements in Section 015000 "Temporary Facilities and Controls."

Protect adjacent buildings and facilities from damage due to demolition activities.

Protect existing site improvements, appurtenances, and landscaping to remain.

Erect a plainly visible fence around drip line of individual trees or around perimeter drip line of groups of trees to remain.

Provide temporary barricades and other protection required to prevent injury to people and damage to adjacent buildings and facilities to remain.

Provide protection to ensure safe passage of people around building demolition area and to and from occupied portions of adjacent buildings and structures.

Remove temporary barriers and protections where hazards no longer exist. Where open excavations or other hazardous conditions remain, leave temporary barriers and protections in place.

DEMOLITION

General: Demolish indicated buildings and site improvements completely. Use methods required to complete the Work within limitations of governing regulations and as follows:

Do not use cutting torches until work area is cleared of flammable materials. Maintain portable fire-suppression devices during flame-cutting operations.

Maintain fire watch during and for at least 4 hours after flame-cutting operations.

STRUCTURE DEMOLITION 024116-5

Maintain adequate ventilation when using cutting torches.

Locate building demolition equipment and remove debris and materials so as not to impose excessive loads on supporting walls, floors, or framing.

Site Access and Temporary Controls: Conduct building demolition and debris-removal operations to ensure minimum interference with roads, streets, walks, walkways, and other adjacent occupied and used facilities.

Do not close or obstruct streets, walks, walkways, or other adjacent occupied or used facilities without permission from Owner and authorities having jurisdiction.

Provide alternate routes around closed or obstructed traffic-ways if required by authorities having jurisdiction.

Use water mist and other suitable methods to limit spread of dust and dirt. Comply with governing environmental-protection regulations.

Explosives: Use of explosives is not permitted.

Proceed with demolition of structural framing members systematically, from higher to lower level. Complete building demolition operations above each floor or tier before disturbing supporting members on the next lower level.

Remove debris from elevated portions of the building by chute, hoist, or other device that will convey debris to grade level in a controlled descent.

Salvage: Items to be removed and salvaged are indicated below:

No items are necessary for salvage

Demolish foundation walls and other below-grade construction that are within footprint of new construction and extending 5 feet (1.5 m) outside footprint indicated for new construction.

Remove below-grade construction, including basements, foundation walls, and footings, completely.

Existing Utilities: Demolish existing utilities and below-grade utility structures that are within [5 feet (1.5 m)] outside footprint indicated for new construction. Abandon utilities outside this area.

Below-Grade Areas: Completely fill below-grade areas and voids resulting from building demolition operations with satisfactory soil materials according to backfill requirements in Section 312000 "Earth Moving."

Site Grading: Uniformly rough grade area of demolished construction to a smooth surface, free from irregular surface changes. Provide a smooth transition between adjacent existing grades and new grades.

STRUCTURE DEMOLITION 024116-6

Promptly repair damage to adjacent buildings and site improvements caused by demolition operations.

CLEANING

Remove demolition waste materials from Project site and dispose of them at an EPA-approved construction and demolition waste landfill acceptable to authorities having jurisdiction, and…