Att. 1 Specifications 220525.pdf

USDA FOREST SERVICE, R-9

ELY SEAPLANE BASE IMPROVEMENT PROJECT

SPECIFICATIONS

TABLE OF CONTENTS 5/20/2021

DIVISION 01 – GENERAL REQUIREMENTS PAGE

SECTION 011000 PROJECT SUMMARY 02

SECTION 012000 - PRICE AND PAYMENT PROCEDURES 04

SECTION 012600 - CONTRACT MODIFICATION PROCEDURES 05

SECTION 013000 - ADMINISTRATIVE REQUIREMENTS 06

SECTION 014000 - QUALITY REQUIREMENTS 09

SECTION 015000 - TEMPORARY FACILITIES 11

SECTION 017000 - EXECUTION AND CLOSEOUT REQUIREMENTS 13

SECTION 017419 - CONSTRUCTION WASTE MANAGEMENT AND DISPOSAL 15

SECTION 024119 - SELECTIVE DEMOLITION 15

SECTION 312000 – EARTH MOVING 17

SECTION 311200 – HOT MIX ASPHALT 19

SECTION 323113 - CHAIN LINK FENCES AND GATES 29

SECTION 335215 - PIPING, AVIATION FUEL 31

GENERAL -PROJECT SUMMARY

PROJECT INFORMATION

Project Identification: Ely Seaplane Base Improvement Project

Project Location: Shagawa Lake, Ely MN.

Project Description: The project consists of but is not limited to the following major items:

1.) The removal and replacement of the existing asphaltic pavement which is currently in place at the ESB. This work shall include the following items of work; Demolition and removal of the existing pavement, shaping and preparing the gravel base for the new pavement, correcting drainage issues, pavement markings, traffic control and other incidentals to complete the work as detailed in this Plan.

All existing asphaltic pavement; The road, the parking lot and any other area shall be removed by milling where feasible. The contractor shall grade and shape the existing base (at ESB) for proper drainage as detailed on the Plan or as directed by the CO. The grade at the ESB shall be prepared for the placement of the HMA pavement. This work shall be paid under the item of “#20304, Removal of Pavement, Disposal a”. Under this item, the contractor is to dispose of the salvaged pavement and takes ownership of the material

Concrete areas exist from the hangar to the lake ramp and along some edges of the docks. Also, the remining perimeters of the docks are wood. Care must be taken not to damage the concrete or wood surfaces and that the final compacted elevations are flush with the adjacent surfaces.

Other areas of concern are; 1.) The paved area located adjacent to the North side of the hangar/office Building (see Plan Sheets). 2.) The storage building on the East side of the property near the fence (see Plan Sheets). This is the area of storage sheds and the loading zone for the building. All drainage from this area will be shaped to drain away from the hangar and to the lake.

This Plan contains the item of Soil Erosion, Storm Water and Pollution Control. Silt Fence and spill containment booms will be required and paid for under this item.

Traffic Control must be maintained throughout the term of the contract work. Flaggers and proper signing must be utilized to ensure minimal interruption to the ESB during open public hours. See the Special Provisions for the required details. All signs must conform to the MUTCD.

2.) The replacement of three fuel sumps located near the approaches to the docks and the fuel pumps and the replacement of the existing underground fuel lines between sumps and pumps.

This work requires saw cutting a section of the apron and replacing.The metal containment structures for the sumps must also be replaced with well monitoring type manholes to the same elevation as the adjacent asphalt.

PROJECT INFORMATION (Cont.)

3.) The 14’ wide access road West of the hangar building must be widened to 18’. The total length of this road is 36’. This will require a new gate and fence panel installation

4.) Construct a drainage swale approximately 75’ in length from an area South of the hangar building between adjacent to and along the North edge of Shagawa Road sloping Westerly to the West property line. Fill must be placed between the hangar and Shagawa Road to repair the erosion which has occurred.

WORK RESTRICTIONS

Contractor's Use of Premises: During construction, Contractor will have use of area indicated.

Contractor's use of premises is limited only by The Government’s right to perform work or employ other contractors on portions of Project and as follows:

Owner will occupy premises during construction. Perform construction only during normal working hours (8 AM to 5 PM) Monday thru Friday, other than holidays), unless otherwise agreed to in advance by Owner. Clean up work areas and return to usable condition at the end of each work period.

Driveways, Walkways, and Entrances: Keep driveways and entrances serving premises clear and available to Owner, The Government’s employees, and emergency vehicles at all times. Do not use these areas for parking or storage of materials.

On-Site Work Hours: Limit work in the existing building to normal business working hours of 8 a.m. to 5 p.m., Monday through Friday, unless otherwise indicated.

Nonsmoking Building: Smoking is not permitted within the building or within 25 feet of entrances, operable windows, or outdoor-air intakes.

PRODUCTS (Not Used)

EXECUTION (Not Used)

END OF SECTION 011000

SECTION 012000 - PRICE AND PAYMENT PROCEDURES

GENERAL

UNIT PRICES

Unit price is a price per unit of measurement for materials, equipment, or services, or a portion of the Work, added to or deducted from the Contract Sum by appropriate modification, if the scope of Work or estimated quantities of Work required by the Contract Documents are increased or decreased.

Unit prices include all necessary material, plus cost for delivery, installation, insurance, applicable taxes, overhead, and profit.

Measurement and Payment: See individual Specification Sections for work that requires establishment of unit prices. Methods of measurement and payment for unit prices are specified in those Sections.

PAYMENT PROCEDURES

Submit a Schedule of Values at least seven days before the initial Application for Payment.

Break down the Contract Sum into at least one line item for each Specification Section in the Project Manual table of contents. Coordinate the schedule of values with Contractor's construction schedule.

Application for Payment Forms: Use forms acceptable to Contracting Officer as form for Applications for Payment.

Submit three copies of each application for payment according to the schedule established in Owner/Contractor Agreement.

Notarize and execute by a person authorized to sign legal documents on behalf of Contractor.

END OF SECTION 012000

SECTION 012600 - CONTRACT MODIFICATION PROCEDURES

CONTRACT MODIFICATION PROCEDURES

Contracting Officer or Representative will issue supplemental instructions authorizing minor changes in the Work, not involving adjustment to the Contract Sum or the Contract Time.

Owner-Initiated Proposal Requests: Contracting Officer or Representative will issue a detailed description of proposed changes in the Work.

Proposal Requests are not instructions either to stop work in progress or to execute the proposed change.

Within the time specified in Proposal Request after receipt of Proposal Request, submit a quotation estimating cost adjustments to the Contract Sum and the Contract Time.

Contractor-Initiated Proposals: If latent or changed conditions require modifications to the Contract, Contractor may initiate a claim by submitting a request for a change to Contracting Officer or Representative.

On The Government’s approval of a Proposal Request, Contracting Officer or Representative will issue a Change Order for signatures of Owner and Contractor for all changes to the Contract Sum or the Contract Time.

Contracting Officer or Representative may issue a Construction Change Directive. Construction Change Directive instructs Contractor to proceed with a change in the Work, for subsequent inclusion in a Change Order.

Construction Change Directive contains a complete description of change in the Work. It also designates method to be followed to determine change in the Contract Sum or the Contract Time.

Documentation: Maintain detailed records on a time and material basis of work required by the Construction Change Directive. After completion of change, submit an itemized account and supporting data necessary to substantiate cost and time adjustments to the Contract.

PRODUCTS (Not Used)

EXECUTION (Not Used)

END OF SECTION 012600

SECTION 013000 - ADMINISTRATIVE REQUIREMENTS

PROJECT MANAGEMENT AND COORDINATION

Subcontract List: Submit a written summary identifying individuals or firms proposed for each portion of the Work.

Key Personnel Names: Within 15 days of starting construction operations, submit a list of key personnel assignments, including superintendent and other personnel in attendance at Project site. List e-mail addresses and telephone numbers.

Coordinate operations included in different Sections of the Specifications to ensure efficient and orderly installation of each part of the Work.

Requests for Information (RFIs): On discovery of the need for additional information or interpretation of the Contract Documents, Contractor shall prepare and submit an RFI.

Use forms acceptable to Contracting Officer.

Schedule and conduct progress meetings at Project site at as needed. Notify Owner and Contracting Officer or Representative of meeting dates and times. Require attendance of each subcontractor or other entity concerned with current progress or involved in planning, coordination, or performance of future activities.

SUBMITTAL ADMINISTRATIVE REQUIREMENTS

Contracting Officer or Representative's Digital Data Files: Electronic digital data files of the Contract Drawings will be provided by Contracting Officer or Representative for Contractor's use in preparing submittals.

Contracting Officer or Representative will furnish Contractor one set of digital data drawing files of the Contract Drawings for use in preparing Shop Drawings and Project record drawings.

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

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

Submit three copies of each action submittal. Contracting Officer or Representative will return one copy.

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

Provide a space approximately 6 by 8 inches (150 by 200 mm) on label or beside title block to record Contractor's review and approval markings and action taken by Contracting Officer or Representative. Include the following information on the label:

Project name.

Date.

Name and address of Contractor.

Name and address of subcontractor or supplier.

Number and title of appropriate Specification Section.

Electronic Submittals: Identify and incorporate information in each electronic submittal file as follows:

Assemble complete submittal package into a single indexed file incorporating submittal requirements of a single Specification Section and transmittal form with links enabling navigation to each item.

Name file with unique identifier, including project identifier, Specification Section number, and revision identifier.

Provide means for insertion to permanently record Contractor's review and approval markings and action taken by Contracting Officer or Representative.

Identify options requiring selection by Contracting Officer or Representative.

Identify deviations from the Contract Documents on submittals.

Contractor's Construction Schedule Submittal Procedure:

Submit required submittals in the following format:

Working electronic copy of schedule file, where indicated.

PDF electronic file.

Three paper copies.

Contractor's Construction Schedule: Initial schedule, of size required to display entire schedule for entire construction period.

Submit a working electronic copy of schedule, using software indicated, and labeled to comply with requirements for submittals. Include type of schedule (initial or updated) and date on label.

Coordinate Contractor's construction schedule with the schedule of values,[ list of subcontracts,] submittal schedule, progress reports, payment requests, and other required schedules and reports.

PRODUCTS

SUBMITTAL PROCEDURES

General Submittal Procedure Requirements: Prepare and submit submittals required by individual Specification Sections.

Submit electronic submittals via email as PDF electronic files.

Contracting Officer or Representative will return annotated file. Annotate and retain one copy of file as an electronic Project record document file.

ACTION SUBMITTALS

Submit three paper copies of each submittal unless otherwise indicated. Contracting Officer or Representative will return one copy.

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.

Submit on sheets at least 8-1/2 by 11 inches but no larger than 11 by 17 inches . Include the following:

Dimensions and identification of products.

Fabrication and installation drawings and roughing-in and setting diagrams.

Notation of coordination requirements.

Notation of dimensions established by field measurement.

CONTRACTOR'S CONSTRUCTION SCHEDULE

Gantt-Chart Schedule: Submit a comprehensive, fully developed, horizontal Gantt-chart-type schedule within 15 days of date established by the Notice to Proceed.

Preparation: Indicate each significant construction activity separately. Identify first workday of each week with a continuous vertical line.

EXECUTION

CONTRACTOR'S CONSTRUCTION SCHEDULE

Updating: At weekly intervals, update schedule to reflect actual construction progress and activities. Issue schedule at least 3 days before each regularly scheduled progress meeting.

As the Work progresses, indicate Actual Completion percentage for each activity.

Distribute copies of approved schedule to Owner, Contracting Officer or Representative, subcontractors, testing and inspecting agencies, and parties identified by Contractor with a need-to-know schedule responsibility. When revisions are made, distribute updated schedules to the same parties.

END OF SECTION 013000

SECTION 014000 - QUALITY REQUIREMENTS

SECTION REQUIREMENTS

Testing and inspecting services are required to verify compliance with requirements specified or indicated. These services do not relieve Contractor of responsibility for compliance with the Contract Document requirements.

Referenced Standards: If compliance with two or more standards is specified and the standards establish different or conflicting requirements, comply with the most stringent requirement. Refer uncertainties to Contracting Officer or Representative for a decision.

Minimum Quantity or Quality Levels: The quantity or quality level shown or specified shall be the minimum. The actual installation may exceed the minimum within reasonable limits.

Indicated numeric values are minimum or maximum, as appropriate, for the context of requirements. Refer uncertainties to Contracting Officer or Representative for a decision.

Contractor's Statement of Responsibility: When required by authorities having jurisdiction, submit copy of written statement of responsibility sent to authorities having jurisdiction before starting work on the following systems:

Test and Inspection Reports: Prepare and submit certified written reports specified in other Sections. Include the following:

Date of issue.

Project title and number.

Name, address, and telephone number of testing agency.

Dates and locations of samples and tests or inspections.

Names of individuals making tests and inspections.

Description of the Work and test and inspection method.

Identification of product and Specification Section.

Complete test or inspection data.

Test and inspection results and an interpretation of test results.

Record of temperature and weather conditions at time of sample taking and testing and inspecting.

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.

Testing Agency Qualifications: An independent agency with the experience and capability to conduct testing and inspecting indicated; and where required by authorities having jurisdiction, that is acceptable to authorities.

Retesting/Reinspecting: Regardless of whether original tests or inspections were Contractor's responsibility, provide quality-control services, including retesting and reinspecting, for construction that replaced Work that failed to comply with the Contract Documents.

Testing Agency Responsibilities: Cooperate with Contracting Officer or Representative and Contractor in performance of duties. Provide qualified personnel to perform required tests and inspections.

Notify Contracting Officer or Representative and Contractor of irregularities or deficiencies in the Work observed during performance of its services.

Do not release, revoke, alter, or increase requirements of the Contract Documents or approve or accept any portion of the Work.

Associated Services: Cooperate with testing agencies and provide reasonable auxiliary services as requested. Provide the following:

Access to the Work.

Incidental labor and facilities necessary to facilitate tests and inspections.

Adequate quantities of representative samples of materials that require testing and inspecting. Assist agency in obtaining samples.

Facilities for storage and field curing of test samples.

Security and protection for samples and for testing and inspecting equipment.

Coordination: Coordinate sequence of activities to accommodate required quality-assurance and -control services with a minimum of delay and to avoid necessity of removing and replacing construction to accommodate testing and inspecting.

Schedule times for tests, inspections, obtaining samples, and similar activities.

Special Tests and Inspections: Engage a qualified testing agency to conduct special tests and inspections required by authorities having jurisdiction.

PRODUCTS (Not Used)

EXECUTION

REPAIR AND PROTECTION

General: On completion of testing, inspecting, sample taking, and similar services, repair damaged construction and restore substrates and finishes.

Repair and protection are Contractor's responsibility, regardless of the assignment of responsibility for quality-control services.

END OF SECTION 014000

SECTION 015000 - TEMPORARY FACILITIES

SECTION REQUIREMENTS

Electric Power will be Available from The Government’s existing system without metering and without payment of use charges. Provide connections and extensions of services as required for construction operations.

Erosion/Sedimentation and Spill-Control Plan: Submit plan showing compliance with requirements of MPCA/EPA Construction General Permit or authorities having jurisdiction, whichever is more stringent.

PRODUCTS

TEMPORARY FACILITIES

Provide field offices, storage and fabrication sheds, and other support facilities as necessary for construction operations. Store combustible materials apart from building.

EQUIPMENT

Fire Extinguishers: Portable, UL rated; with class and extinguishing agent as required by locations and classes of fire exposures.

EXECUTION

TEMPORARY UTILITY INSTALLATION

Sanitary Facilities: Provide temporary toilets, wash facilities, and drinking-water fixtures.

Comply with regulations and health codes for type, number, location, operation, and maintenance of fixtures and facilities.

SUPPORT FACILITIES INSTALLATION

Install project identification and other signs in locations approved by Owner to inform the public and persons seeking entrance to Project.

Waste Disposal Facilities: Provide waste-collection containers in sizes adequate to handle waste from construction operations. Comply with requirements of authorities having jurisdiction.

SECURITY AND PROTECTION FACILITIES INSTALLATION

Provide protection, operate temporary facilities, and conduct construction as required to comply with environmental regulations and that minimize possible air, waterway, and subsoil contamination or pollution or other undesirable effects.

Provide measures to prevent soil erosion and discharge of soil-bearing water runoff and airborne dust to undisturbed areas and to adjacent properties and walkways, according to EPA Construction General Permit or authorities having jurisdiction, whichever is more stringent.

Provide temporary enclosures for protection of construction, in progress and completed, from exposure, foul weather, other construction operations, and similar activities. Provide temporary weathertight enclosure for building exterior.

Supervision: Enforce strict discipline in use of temporary facilities. To minimize waste and abuse, limit availability of temporary facilities to essential and intended uses.

Remove each temporary facility when need for its service has ended, when it has been replaced by authorized use of a permanent facility, or no later than Substantial Completion.

END OF SECTION 015000

SECTION 017000 - EXECUTION AND CLOSEOUT REQUIREMENTS

EXECUTION REQUIREMENTS

CLOSEOUT SUBMITTALS

Contractor's List of Incomplete Items: Initial submittal at Substantial Completion.

Certified List of Incomplete Items: Final submittal at Final Completion.

SUBSTANTIAL COMPLETION PROCEDURES

Prepare a list of items to be completed and corrected (punch list), the value of items on the list, and reasons why the Work is not complete.

Procedures Prior to Substantial Completion: Before requesting Substantial Completion inspection, complete the following:

Participate with Owner in conducting inspection and walkthrough.

Remove temporary facilities.

Inspection: Submit a written request for inspection for Substantial Completion. On receipt of request, Contracting Officer or Representative will proceed with inspection or advise Contractor of unfulfilled requirements. Contracting Officer or Representative will prepare the Certificate of Substantial Completion after inspection or will advise Contractor of items that must be completed or corrected before certificate will be issued.

FINAL COMPLETION PROCEDURES

Submittals Prior to Final Completion: Before requesting inspection for determining final completion, complete the following:

Submit a final Application for Payment.

Submit certified copy of Contracting Officer or Representative's Substantial Completion inspection list of items to be completed or corrected (punch list), endorsed and dated by Contracting Officer or Representative. Certified copy of the list shall state that each item has been completed or otherwise resolved.

Submit a written request for final inspection for acceptance. On receipt of request, Contracting Officer or Representative will either proceed with inspection or notify Contractor of unfulfilled requirements. Contracting Officer or Representative will prepare final Certificate for Payment after inspection or will advise Contractor of items that must be completed or corrected before certificate will be issued.

Reinspection: Request reinspection when the Work identified in previous inspections as incomplete is completed or corrected.

PRODUCTS

MATERIALS

In-Place Materials: Use materials for patching identical to in-place materials. For exposed surfaces, use materials that visually match in-place adjacent surfaces to the fullest extent possible.

EXECUTION

EXAMINATION AND PREPARATION

Existing Conditions: The existence and location of underground and other utilities and construction indicated as existing are not guaranteed. Before beginning sitework, investigate and verify the existence and location of underground utilities and other construction affecting the Work.

Proceed with installation only after unsatisfactory conditions have been corrected.

Take field measurements as required to fit the Work properly. Where portions of the Work are indicated to fit to other construction, verify dimensions of other construction by field measurements before fabrication.

CONSTRUCTION LAYOUT AND FIELD ENGINEERING

Before proceeding to lay out the Work, verify layout information shown on Drawings, in relation to the property survey and existing benchmarks.

END OF SECTION 017000

SECTION 017419 - CONSTRUCTION WASTE MANAGEMENT AND DISPOSAL

SECTION REQUIREMENTS

Action Submittals:

Waste Management Plan: Submit plan within 14 days of date established for commencement of the Work.

EXECUTION

PLAN IMPLEMENTATION

General: Implement approved waste management plan. Provide handling, containers, storage, signage, transportation, and other items as required to implement waste management plan during the entire duration of the Contract.

SALVAGING DEMOLITION WASTE

Salvaged Items not for the Government’s use, shall be removed from the Project site.

DISPOSAL OF WASTE

Remove and use or recycle items or materials to be salvaged, recycled and remove other waste materials from Project site and legally dispose of them.

END OF SECTION 017419

SECTION 024119 - SELECTIVE DEMOLITION

SECTION REQUIREMENTS

Items indicated to be removed and salvaged become the Contractor’s property. Carefully detach from existing construction, in a manner to prevent damage, and dispose of.

It is not expected that hazardous materials will be encountered in the Work. If hazardous materials are encountered, do not disturb; immediately notify Contracting Officer or Representative and Owner. Hazardous materials will be removed by Owner under a separate contract.

PRODUCTS

PEFORMANCE REQUIREMENTS

Regulatory Requirements: Comply with EPA regulations and with hauling and disposal regulations of authorities having jurisdiction.

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

EXECUTION

DEMOLITION

Maintain services/systems indicated to remain and protect them against damage during selective demolition operations.

Items for demolition are: Existing asphalt and exiting section of fence & gate.

Locate, identify, shut off, disconnect, and seal or cap off indicated utility services and mechanical/electrical systems serving areas to be selectively demolished.

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

Provide and maintain shoring, bracing, and structural supports as required to preserve stability and prevent movement, settlement, or collapse of construction and finishes to remain, and to prevent unexpected or uncontrolled movement or collapse of construction being demolished.

Remove demolition waste materials from Project site.

END OF SECTION 024119

SECTION 312000 - EARTH MOVING

PART 1 - GENERAL

1.1 SECTION REQUIREMENTS

A. Utility Locator Service: Notify One Call" for area where Project is located before beginning earthmoving operations.

PART 2 - PRODUCTS

2.1 SOIL MATERIALS

A. Satisfactory Soil: ASTM D 2487 Soil Classification Groups GW, GP, GM, SW, SP, and SM; free of rock or gravel larger than 3 inches (75 mm) in any dimension, debris, waste, frozen materials, vegetation, or other deleterious matter.

B. Unsatisfactory Soil: ASTM D 2487 Soil Classification Groups GC, SC, CL, ML, OL, CH, MH, OH, and PT.

C. Backfill and Fill: Satisfactory soil materials.

D. Subbase Material: Naturally or artificially graded mixture of natural or crushed gravel, crushed stone, and natural or crushed sand; ASTM D 2940/D 2940M; with at least 90 percent passing a 1-1/2-inch (37.5-mm) sieve and not more than 12 percent passing a No. 200 (0.075-mm) sieve.

E. Bedding Course: Naturally or artificially graded mixture of natural or crushed gravel, crushed stone, and natural or crushed sand; ASTM D 2940/D 2940M; except with 100 percent passing a 1-inch (25-mm) sieve and not more than 8 percent passing a No. 200 (0.075-mm) sieve.

F. Drainage Course: Narrowly graded mixture of crushed stone or crushed or uncrushed gravel; ASTM D 448; coarse-aggregate grading Size 57; with 100 percent passing a 1- 1/2-inch (37.5-mm) sieve and zero to 5 percent passing a No. 8 (2.36-mm) sieve.

PART 3 - EXECUTION

3.1 EARTHWORK

A. Protect and maintain erosion and sedimentation controls during earthmoving operations.

B. Protect subgrades and foundation soils from freezing temperatures and frost. Remove temporary protection before placing subsequent materials.

C. Prevent surface water and ground water from entering excavations, from ponding on prepared subgrades, and from flooding Project site and surrounding area.

D. Excavate for roadway, building slabs and drainage. Trim subgrades to required lines and grades.

E. Proof-roll subgrade below pavements with a pneumatic-tired to identify soft pockets and areas of excess yielding. Do not proof-roll wet or saturated subgrades.

F. Grade areas to a smooth surface to cross sections, lines, and elevations indicated. Grade lawns, walkways, and unpaved subgrades to tolerances of plus or minus 1 inch and pavements and areas within building lines to plus or minus 1/2 inch .

G. Under pavements and walkways, place subbase course material on prepared subgrades and compact at optimum moisture content to required grades, lines, cross sections, and thicknesses.

H. Remove surplus satisfactory soil and waste materials, including unsatisfactory soil, trash, and debris, and legally dispose of them off Owner's property.

END OF SECTION 312000

SECTION 321200 - HOT-MIX ASPHALT PAVING

PART 1 - GENERAL

1.1 SUMMARY

A. This Section includes hot-mix asphalt concrete pavement, patching and repair.

B. Related Sections include the following:

1. Section 321204 “Crushed Aggregate Base or Surface Coarse.”

1.2 SUBMITTALS

A. Product Data: For each type of product indicated. Include technical data and tested physical and performance properties.

B. Job-Mix Designs: Submit written job-mix formulas for approval at least 28 days before production.

Furnish mixes of aggregate, asphalt binder, recycled asphalt pavement, and additives that meet the applicable gradation and material requirements in one of the following:

1. MNDOT approved asphalt concrete pavement mixture as approved by the Contracting Officer.

C. Material certificates.

1.3 QUALITY ASSURANCE

A. Manufacturer Qualifications: Manufacturer shall be registered with and approved by MNDOT.

B. Pre-paving Conference: Coordinate attendance with the Contracting Officer and all applicable subcontractors. Review methods and procedures related to hot-mix asphalt paving including, but not limited to, the following:

1. Review proposed sources of paving materials, including capabilities and location of plant that will manufacture hot-mix asphalt.

2. Review condition of subgrade and preparatory work.

3. Review Storm Water and Environmental Protection Plan. (SEE 1.4 A ON

ENVIRONMENTAL PROTECTION)

4. Review Traffic Control Plan

5. Review Contractor Quality Control Plan for paving and testing.

6. Review requirements for protecting paving work, including restriction of traffic during installation period and for remainder of construction period.

7. Review and finalize construction schedule and verify availability of materials, Installer's personnel, equipment, and facilities needed to make progress and avoid delays.

8. Review acceptance procedures

1.4 PROJECT CONDITIONS

A. Environmental protections: Due to the proximity to Shagawa Lake, extra precautions must be taken. Spill protection booms must be installed at the waters edge and around the docks during asphalting operations including priming, tack coating and asphalt placement. This must be coordinated with the seaplane base personnel and the Contractiing Officer or Representative.

B. Environmental Limitations: Do not apply asphalt materials if subgrade is wet or excessively damp or if the following conditions are not met:

1. Prime and Tack Coats: Minimum surface temperature of 60 deg F.

2. Asphalt Base Course: Minimum surface temperature of 40 deg F and rising at time of placement.

3. Asphalt Surface Course: Minimum surface temperature of 60 deg F at time of placement.

1.5 MEASUREMENT AND PAYMENT

A. Hot Mix Asphalt Pavement – Access Road, Parking & docks: Payment will be number of tons of pavement installed. Includes surface preparation, subgrade compaction, and installation of pavement. Repair and patching also includes cutting, tack coat and other necessary preparations.

PART 2 - PRODUCTS

2.1 AGGREGATES

A. General: Use materials and gradations that have performed satisfactorily in previous installations.

B. Coarse Aggregate: ASTM D 692, sound; angular crushed stone, crushed gravel, or properly cured, crushed blast-furnace slag.

C. Fine Aggregate: ASTM D 1073 or AASHTO M 29, sharp-edged natural sand or sand prepared from stone, gravel, properly cured blast-furnace slag, or combinations thereof.

1. For hot-mix asphalt, limit natural sand to a maximum of 20 percent by weight of the total aggregate mass.

D. Mineral Filler: ASTM D 242 or AASHTO M 17, rock or slag dust, hydraulic cement, or other inert material.

2.2 MIXES

A. Hot-Mix Asphalt: Dense, hot-laid, hot-mix asphalt plant mixes designed according to one of the following:

1. MNDOT approved mix design. The mix design shall have a history of satisfactory performance in geographical area where project is located.

2. Do not begin mix production until the job-mix formula is approved by the Contracting Officer or Representative.

B. Hot-Mix Asphalt: Dense, hot-laid, hot-mix asphalt plant mixes designed according to procedures in

MNDOT approved mix design. The mix design shall have a history of satisfactory performance in geographical area where project is located. Do not begin mix production until the job-mix formula is approved by the Contracting Officer or Representative.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Verify that subgrade is dry and in suitable condition to support paving and imposed loads.

B. Proof-roll subbase using heavy, pneumatic-tired rollers to locate areas that are unstable or that require further compaction.

C. Proceed with paving only after unsatisfactory conditions have been corrected.3. Do not allow traffic or construction equipment to cross the cut edge.

4. Apply a tack coat (at a rate of 0.05 to 0.15 gal./sq.yd.) to the cut edge before placing hot mix asphalt surfacing.

5. Avoid smearing or staining adjoining surfaces.

3.2 MIXING

A. Hot-Mix Asphalt Pavement Mix and Mixing Plant shall conform to AASHTO M156.

3.3 HAULING

A. Trucks used for hauling bituminous mixtures shall have tight, clean, smooth metal beds that have been thinly coated with a material to prevent the mixture from adhering to the beds. Truck beds shall be drained prior to loading. Each truck shall have a cover to protect the mixture from the weather.

When necessary to ensure that the mixture will be delivered at the specified temperature, truck beds shall be insulated and covers shall be securely fastened.

3.4 HOT-MIX ASPHALT PLACING

A. Machine place hot-mix asphalt on prepared surface, spread uniformly, and strike off. Place asphalt mix by hand to areas inaccessible to equipment in a manner that prevents segregation of mix. Place each course to required grade, cross section, and thickness when compacted.

1. Place hot-mix asphalt base course in number of lifts and thicknesses indicated.

2. Spread mix at minimum temperature of 275 deg F.

B. Pavers: Use pavers that are self-contained, power-propelled units with adjustable vibratory heated screeds, capable of spreading and finishing courses of asphalt mix in thicknesses and widths shown on the Drawings without segregating, tearing, shoving, or gouging. When indicated, pavers shall be equipped with automatic screed controls and with sensors capable of sensing grade from an outside reference line, sensing transverse slope of the screed, and providing the automatic signals that operate the screed to maintain grade and transverse slope.

3.5 COMPACTING

A. General: Begin compaction as soon as placed hot-mix paving will bear roller weight without excessive displacement. Compact hot-mix paving with hot, hand tampers or vibratory-plate compactors in areas inaccessible to rollers.

B. Thoroughly and uniformly compact the asphalt surface by rolling. Do not cause cracking, shoving, or undue displacement. Continue rolling until all roller marks are eliminated, all cracks are sealed, and the required density is obtained. Do not roll the mix after the surface cools below 175 º F.

C. Monitor the compaction process with nuclear density gauges. Compact to a pavement specific gravity

(density) that is no less than 92 percent of the maximum specific gravity (density) determined according to AASHTO T 209.

3.6 JOINTS, TRIMMING EDGES, AND CLEANUP

A. Construct joints to ensure a continuous bond between adjoining paving sections. Construct joints free of depressions with same texture and smoothness as other sections of hot-mix asphalt course.

1. Clean contact surfaces and apply tack coat to joints.

2. Construct transverse joints as described in AI MS-22, "Construction of Hot Mix Asphalt

Pavements."

3. Compact joints as soon as hot-mix asphalt will bear roller weight without excessive displacement.

4. Compact asphalt at joints to a density within 2 percent of specified course density.

B. Edge Shaping: While surface is being compacted and finished, trim edges of pavement to proper alignment. Bevel edges while asphalt is still hot; compact thoroughly.

C. Repairs: Remove paved areas that are defective or contaminated with foreign materials and replace with fresh, hot-mix asphalt. Compact by rolling to specified density and surface smoothness.

D. Disposal: Except for material indicated to be recycled, remove all trimmed or otherwise discarded materials from Project site and legally dispose of them in an EPA-approved landfill. Do not allow waste materials to accumulate on-site.

3.7 PAVEMENT SMOOTHNESS

A. Use a 10-foot metal straight edge to measure at right angles and parallel to the centerline.

Defective areas are surface deviations in excess of ¼ inch in 10 feet between any two contacts of the straightedge with the surface. Correct defective areas using approved methods.

3.8 PATCHING AND REPAIR

A. Hot-Mix Asphalt Pavement: Saw cut perimeter of patch and excavate existing pavement section to sound base. Excavate rectangular or trapezoidal patches, extending 12 inches into adjacent sound pavement, unless otherwise indicated. Cut excavation faces vertically. Remove excavated material.

Recompact existing unbound-aggregate base course to form new subgrade.

B. Tack Coat: Apply uniformly to clean, vertical surfaces abutting or projecting into new, hot-mix asphalt paving at a rate of 0.05 to 0.15 gal./sq. yd..

1. Allow tack coat to cure undisturbed before applying hot-mix asphalt paving.

2. Avoid smearing or staining adjoining surfaces, appurtenances, and surroundings. Remove spillages and clean affected surfaces. (SEE 1.4 A ON ENVIRONMENTAL PROTECTION)

C. Patching: Fill excavated pavements with hot-mix asphalt, while still hot, compact flush with adjacent surface.

D. Thickness: The completed pavement shall have a minimum thickness of 4 inches after compaction or as shown on the Drawings.

E. Acceptance: The compacted bituminous surfacing, when ready for acceptance, shall be thoroughly compacted, smooth, and match existing grade and cross section.

3.9 SURFACE PREPARATION

A. General: Immediately before placing asphalt materials, remove loose and deleterious material from substrate surfaces. Ensure that prepared subgrade is ready to receive paving.

1. Sweep loose granular particles from surface of unbound-aggregate base course. Do not dislodge or disturb aggregate embedded in compacted surface of base course.

B. Herbicide Treatment: When shown on the Drawings, apply herbicide according to manufacturer's recommended rates and written application instructions. Apply to dry, prepared subgrade or surface of compacted-aggregate base before applying paving materials.

C. Tack Coat: Apply uniformly to surfaces of existing pavement at a rate of 0.05 to 0.15 gal./sq.

yd.

1. Allow tack coat to cure undisturbed before applying hot-mix asphalt paving.

2. Avoid smearing or staining adjoining surfaces, appurtenances, and surroundings. Remove spillages and clean affected surfaces.

3.10 ACCEPTANCE

A. Hot Asphalt Concrete Pavement shall be tested as indicated in Part 1 – “Quality Assurance.”

B. Gradation and Asphalt Content

1. Gradation: AASHTO T30

2. Asphalt Content: AASHTO T 308

3. Frequency: 1/700 tons or a minimum of 3 per project

4. The Contractor shall provide a split to the Contracting Officer when requested.

C. Field density

1. Shall be determined in place after final rolling by nuclear method according to ASTM D 2950 or other approved procedure. The frequency of testing shall be once per 300 square yards or more frequently if needed to show compliance with the specifications. The test results shall be provided upon completion.

D. Thickness

1. In-place compacted thickness of hot-mix asphalt courses will be determined according to

ASTM D 3549. The frequency of testing shall be once per 300 square yards or more frequently if needed to show compliance with the specifications. Tests shall be performed after compaction.

The test results shall be provided upon completion.

2. Tolerance: Plus 1/4 inch, no minus.

E. Remove and replace or install additional hot-mix asphalt where test results or measurements indicate that it does not comply with specified requirements.

END OF SECTION 321200

SECTION 323113 - CHAIN LINK FENCES AND GATES

PART 4 - GENERAL

4.1 SECTION REQUIREMENTS

A. Submittals: Product Data.

PART 5 - PRODUCTS

5.1 FENCE COMPONENTS

A. Fabric: Metallic-coated steel MATCHING THE EXISTING FENCE.

B. Fabric: Aluminum, ASTM F 1183, 2-inch (50-mm) mesh, 0.148-inch- (3.76-mm-) diameter wire.

C. Posts and Rails: Galvanized-steel pipe complying with ASTM F 1043 requirements for heavy industrial fence, and color coated to match fabric].

D. Tension Wire: Metallic-coated steel, ASTM A 817 and ASTM A 824 in color matching fabric.

E. Fittings and Accessories: ASTM F 626, color coated to match fabric, and as follows:

1. Post and Line Caps: Provide weathertight cap for each post. Provide line post caps with loop to receive tension wire or top rail.

2. Post Brace Assembly: Same material as top rail with 3/8-inch- (9.5-mm-) diameter rod and adjustable tightener.

3. Bottom and Center Rail: Same material as top rail with cap on each end.

F. Gate Posts, Swing Gates, and Accessories: ASTM F 900, same metal and finish as posts and rails, with galvanized hardware and accessories.

PART 6 - EXECUTIONINSTALLATION

A. Install fence to comply with ASTM F 567.

B. Excavation: Drill post holes 12 inches in diameter and 60 inches in depth, equally spaced, but not more than 10 feet apart.

C. Setting Posts: Set posts in holes approximately 4 inches above bottom of excavation.

Align posts vertically and align tops. Pour concrete footings with tops 2 inches above grade, troweled to a crown to shed water.

END OF SECTION 323113

SECTION 033000 - CAST-IN-PLACE CONCRETE

GENERAL

SECTION REQUIREMENTS

A. Submittals: Concrete mix designs.

B. Ready-Mixed Concrete Producer Qualifications: ASTM C 94/C 94M.

PRODUCTS

PEFORMANCE REQUIREMENTS

C. Comply with ACI 301, "Specification for Structural Concrete," and with ACI 117, "Specifications for Tolerances for Concrete Construction and Materials."

MATERIALS

D. Reinforcing Bars: ASTM A 615/A 615M, Grade 60 deformed. (Dowelled 6” in existing slabs and overlapped 12” 24” OC)

E. Portland Cement: ASTM C 150, Type I or II.

F. Aggregates: ASTM C 33, coarse aggregate or better, graded.

Maximum Coarse-Aggregate Size: 3/4 inch nominal.

G. Air-Entraining Admixture: ASTM C 260.

H. Chemical Admixtures: ASTM C 494, Do not use calcium chloride or admixtures containing calcium chloride.

I. Strips: ASTM D 1751, asphalt-saturated cellulosic fiber, or ASTM D 1752, cork or self-expanding cork.

CONCRETE MIXTURES

J. Prepare design mixtures, proportioned according to ACI 301.

K. Normal-Weight Concrete:

Minimum Compressive Strength: 4,000 psi at 28 days.

Maximum Water-Cementitious Materials Ratio 0.40.

Slump Limit: 4 inches.

Air Content: Maintain within range permitted by ACI 301. 4%

L. Measure, batch, mix, and deliver concrete according to ASTM C 94/C 94M.

When air temperature is above 90 deg F , reduce mixing and delivery time to 60 minutes.

EXECUTION

CONCRETING

M. Construct formwork according to ACI 301 and maintain tolerances and surface irregularities within ACI 347R limits of Class A, 1/8 inch for concrete exposed to view and Class B, 1/4 inch for other concrete surfaces.

N. Comply with CRSI's "Manual of Standard Practice" for fabricating, placing, and supporting reinforcement.

O. Install construction, isolation, and contraction joints where indicated. Install full-depth joint-filler strips at isolation joints.

P. Place concrete in a continuous operation and consolidate using mechanical vibrating equipment.

Q. Protect concrete from physical damage, premature drying, and reduced strength due to hot or cold weather during mixing, placing, and curing.

R. Formed Surface Finish: Smooth-formed finish for concrete exposed to view, coated, or covered by waterproofing or other direct-applied material; rough-formed finish elsewhere.

S. Slab Finishes: Comply with ACI 302.1R for screeding, restraightening, and finishing operations for concrete surfaces. Do not wet concrete surfaces. Provide the following finishes:

Nonslip-broom finish to exterior concrete platforms, steps, and ramps.

T. Cure formed surfaces by moisture curing for at least seven days.

U. Begin curing concrete slab after finishing

V. Contractor will engage a testing agency to perform field tests and to submit test reports to the owner.

W. Protect concrete from damage. Repair and patch defective areas.

END OF SECTION 033000

SECTION 335215 - PIPING, AVIATION FUEL

PART 7 - GENERAL

7.1 SECTION REQUIREMENTS

A. Submittals: Product Data.

PRODUCTS

B. Aviation Fuel Sumps & Manhole/cover

C. Sump: Franklin APT’s TS-2430 or TS-3630.

D. Manhole & Cover: EBW Fiber reinforced, non bolted from ISP Fuel Systems

E. Double wall fuel piping: OPW Flexworks.

F. Fittings and Accessories: ASTM F 626, color coated, and as follows:

1. Double wall entry boots and seals

2. OPW Flexworks fittings

PART 8 - EXECUTION/INSTALLATION

A. Install all fuel piping and containment must be compliant with NFPA 407, EPA and

MPCA.

B. All work must be made by personnel qualified in aviation fuel dispensing systems and equipment installation.

C. Install sumps and manholes to match existing grades and finished elevations of adjacent asphalt and concrete.

D. Saw cutting concrete, cast in place concrete, reinforcement and related concrete work is incidental to the fuel system installation and repair.

END OF SECTION 335215

Project Description: The project consists of but is not limited to the following major items: