FINAL_3-19_COMBINED__BRAT_PHASE_II_SPECS.pdf

Technical Specifications for

BRAT ASPHALT PHASE II

BUREAU OF LAND MANAGEMENT

111 Garryowen Road Miles City, Montana 59301

MARCH 2019

PROJECT SPECIFICATIONS

TABLE OF CONTENTS

Specification Page No

TABLE OF CONTENTS

MT - 01009 General Information and Requirements.....................1-5 MT - 01500 Temporary Facilities and Controls........................1-4 MT - 01505 Mobilization.............................................1-2 MT - 02201 Watering.................................................1-2 MT – 02202 Cold Mill Asphalt........................................1-2 MT - 02213 Site Grading.............................................1-6 MT - 02233 Aggregate and Geotextile Materials.......................1-3 MT - 03306 Minor Concrete...........................................1-5 MT - 321216 Asphalt Paving..........................................1-7 MT - 321723 Pavement Markings.......................................1-3

Supplementary Information P-100(C) Security....................................................1-4 Terracon Geotechnical Report 2018...................................1-10

SECTION MT-01009

GENERAL INFORMATION AND REQUIREMENTS

MT-01009-1

PART 1: GENERAL

1.1 SUMMARY:

A. Description of Work: Furnishing labor, equipment, supplies, and materials to demo existing bituminous concrete pavement, and install bituminous concrete pavement at the Billings Retardant Air Tanker Base (BRAT) in Billings Montana. Work includes milling existing asphalt, constructing base materials, demo drainage structures, new concrete construction, and new asphalt surfacing in accordance with these drawings and these specifications.

B. Location: Work under this Contract is located at the BLM Billings Fire

Dispatch, 1299 Rimtop Drive, Billings, Montana 59105. The work location is shown on the drawings.

C. Work Schedule: Work to begin on May 14. The NTP will be issued on or before that date indicating that work will begin on May 14.

D. Work Area: Work area is located in a secured facility. The Contractor is responsible for complying with all security measures and background checks of key personnel. See attached “Security Document” for details.

1.2 REFERENCES:

A. Referenced Specifications/Standards with Abbreviations and/or Acronyms:

Wherever the following acronyms are used in these specifications or on the drawings, they are to be construed the same as the respective expressions represented. Copies of the referenced specifications/standards referred to herein may be procured by the Contractor from the following:

AASHTO American Association of State Highway and Transportation Officials 444 North Capitol Street N.W., Suite 225 Washington, DC 20001

ASTM American Society for Testing and Materials 1916 Race Street Philadelphia, PA 19103

Fed. Spec. Federal Specification/Standard General Services Administration Specifications Branch Room 6039, GSA Building Seventh and D Streets, S.W.

Washington, DC 20407

MT-01009-2

MDT Standard Specifications for Road and Bridge Construction, 1995 Ed Montana Department of Transportation Contract Plans Section 2701 Prospect Avenue Helena, MT, 59620

MPW Montana Public Works Standard Specifications 1717 11th Ave.

PO Box 4519 Helena, MT 59604

MUTCD Manual on Uniform Traffic Control Devices for Streets and

Highways Superintendent of Documents Government Printing Office Washington, DC 20402

OSHA Occupational Safety and Health Administration's Standards U.S. Department of Labor Occupational Safety and Health Administration Denver Area Office 333 West Colfax Avenue Denver, CO 80204

*Federal Specifications and catalogs may be obtained at Business Service Centers of Regional Offices of the General Services Administration.

(Washington, DC; Boston, MA; New York, NY; Philadelphia, PA; Atlanta, GA;

Chicago, IL; Kansas City, MO; Fort Worth, TX; Denver, CO; San Francisco, CA;

and Auburn, WA.)

1.3 DEFINITIONS:

A. Approvals: Approval of the submittals is an indication that the

Contractor's submittals have been reviewed and that there are no objections, except as noted. Approval of deviations shall apply only to those deviations or omissions from the requirements of the drawings and specifications brought to the Contracting Officer's attention in writing.

After approval of an item, the Contractor may submit a substitute for approval when the approved item cannot be purchased or delivered in time to avoid delay in completion of the project.

1.4 SUBMITTAL:

A. Scope: Submittal shall be based on the requirements listed in these contract sections.

B. Requirements: For required submittals, allow at least 3 working days for review. Submittal shall be delivered to the Contracting Officer’s Representative for review.

MT-01009-3

C. Identification of Submittal: Completely identify each submittal by showing at least the following information: Submit two copies of each submittal for approval.

1. Name and address of submitter, plus name and telephone number of the individual to contact for further information.

2. Name of project as it appears in these specifications.

3. Contract number, drawing number, and specification section number to which the submittal applies.

4. Whether this is an original submittal or re-submittal.

5. Each item shall note the manufacturer's name and address.

1.5 QUALITY ASSURANCE:

A. Codes and Standards: The work shall comply with codes and standards applicable to each type of work and as listed in the individual sections of these specifications. This Contract incorporates materials, applications, and tests by reference, with the same force and effect as when they were given in full text.

B. Conflict: Where a conflict occurs between reference documents and project specifications, the project specifications shall govern.

C. Measurements: Measurement for pavement is based on the area measured on site and material lift tickets. See pay item details for described units.

1.6 DELIVERY, STORAGE, AND HANDLING:

A. Delivery: The Contractor shall protect products, incorporated into the work, from damage while in transit to the site. Products must be delivered in original unopened containers with manufacturer's name and brand designation and contents legibly indicated. The containers shall bear the referenced specification number, type, and class as applicable.

B. Storage: The Contractor shall provide temporary storage facilities for products complying with manufacturer's recommendations which will protect them from damage until installation on the project and final acceptance.

The storage area shall permit access for inspection and handling.

C. Handling: The Contractor shall load and unload products in such a manner that protects them from damage until installation on the project.

1.7 PROJECT/SITE CONDITIONS:

A. Access to the Work: The work site is located in a secured area (Billings

Airport). It is the Contractors’ responsibility to adhere to the Airport security measures. See attachment “P-100 (C) Security” that has been provided by the airport.

MT-01009-4

B. Environmental Considerations: The aesthetic values of the site and surrounding area are of prime importance. The Contractor shall take all care necessary to preserve all plant life and other natural features. Any surface damage outside the staked area shall be corrected by the Contractor at his expense. Any damage to existing State, County or local roads, used to transport materials to the project, shall be corrected by the Contractor at his expense.

C. Construction facilities: Do not park vehicles or equipment or store materials on private property without written permission from the property owner.

1.8 SEQUENCING AND SCHEDULING:

A. Work Schedule: The schedule shall be submitted at the pre-work conference. When requested, the Contractor shall submit an updated schedule within 3 calendar days.

PART 2: PRODUCTS

(There are no applicable requirements.)

PART 3: EXECUTION

3.1 PROJECT MEETINGS:

A. Pre-Work Conference:

1. Notification: A pre-work conference will be held prior to the start of work. The Contractor will be notified in advance of meeting time, date, and place. The purpose will be to review required work, project drawings and specifications, submittals, construction schedules, payroll and payments, and administrative provisions of the Contract.

2. Attendance: The Contractor, subcontractors, and the persons responsible for coordination of the work shall be present at the meeting.

3. Presentation: The Contractor shall be prepared to summarize and explain procedures planned for the project and present the submittals requested in the specifications.

B. Progress Meetings:

1. Location: Meetings shall be held at the project site or as determined by the Contracting Officer.

2. Notification: Meetings may be called by either the Contracting

Officer or the Contractor. The request shall state who should attend.

C. Final Inspection:

MT-01009-5

1. Location: Meeting shall be held at the project site, or as determined by the Contracting Officer.

2. Notification: The Contractor shall notify the Contracting Officer, in writing, at least 5 working days before the completion date so the Government can schedule final inspection.

3. Attendance: The Contractor shall require the superintendent to be present during this inspection.

3.2 CLEANUP:

A. Waste Removal: The Contractor shall at all times keep the premises free from accumulation of waste materials or rubbish caused by his employees or work. This is to include any airport asphalt surfaces used by the contractor to move equipment, supplies, waste, and materials. At the completion of the work, the Contractor shall remove all such materials from the work site. Excess asphalt shall be removed from the project site.

PART 4: MEASUREMENT AND PAYMENT

4.1 METHOD OF MEASUREMENT:

A. Units: The work described in this section will not be measured for payment.

4.2 BASIS OF PAYMENT:

A. Payment: No direct payment for the work described under this section will be made. Consideration for this item shall be included in the bid price for other items of the Contract.

END OF SECTION

SECTION MT-01500

TEMPORARY FACILITIES AND CONTROLS

MT-01500-1

1.01 SUMMARY:

A. Section Includes: Requirements for sanitary facilities, vehicular access, temporary barriers and controls for dewatering of the site.

1.2 DEFINITIONS:

A. Landscape Preservation: The term "injury" includes, without limitation, bruising, scarring, tearing, and breaking of roots, trunks, or branches.

1.3 SUBMITTALS:

A. Requirements: The Contractor shall submit the Manufacturer's Certificate of Compliance for materials. Submittals shall be in accordance with Section MT-01009 - General Information and Requirements.

1.4 QUALITY ASSURANCE:

A. Regulations: Comply with applicable local regulations for haul routes over public highways, roads, or bridges. Comply with industry standards and applicable laws and regulations of authorities having jurisdiction including, but not limited to, the following:

1. Health and Safety regulations.

2. Utility company regulations.

3. Environmental protection regulations.

4. Prevention and control of water pollution.

B. Manuals: Comply with latest Manual on Uniform Traffic Control Devices

(MUTCD), Part VI.

1.5 PROJECT CONDITIONS:

A. Access Routes: Use only established roadways, areas, and haul routes, or temporary roadways, areas, or haul routes constructed by the Contractor when and as authorized by the Contracting Officer Representative.

MT-01500-2

2.1 MATERIALS:

A. General: Water for compaction is available on the site the Contractor shall coordinate with the airport for use and payment for water used from their water hydrant.

B. Toilet Units: Contractor is responsible for providing temporary toilet facilities for their personnel.

C. Construction Signs: Only signs to expedite deliveries, maintain traffic flow, road closure, promote safety, and caution against danger shall be erected, as necessary.

D. Silt Barrier Geotextile: Shall meet industry standards for stormwater

BMP’s.

3.1 INSTALLATION:

A. Erosion Control Methods: All erosion control items and devices will be completely setup and installed prior to construction. All erosion control will remain in place and maintained throughout the construction process.

Contractor is responsible for implementing and removal of erosion control measures.

B. Vehicle and Pedestrian Traffic Control: The Contractor shall provide the

Contracting Officer Representative a detailed Traffic Control plan prior to the Notice to Proceed date. The plan shall resemble the work breakout as submitted in the Work Schedule. Provide, erect, and maintain all necessary traffic control devices, including traffic cones, delineators, barricades, suitable and sufficient flasher lights, flag persons, danger signals, and signs. Take all necessary precautions for protection of the work and safety of the public on roads and walkways affected by the work during the contract period as construction work proceeds.

1. Do not start any construction work until the proper traffic control devices for warning, channeling, and providing safety for the motorists and pedestrians are in place at the construction site.

2. Protect all roads and walkways closed to traffic with effective barricades. Illuminate all barricades and obstructions at night, and keep all lights burning from sunset until sunrise.

3. Erect such additional warning and directional signs in connection with the work as may be required by the Contracting Officer Representative.

4. Maintain the condition, operation, and effectiveness of all traffic control devices throughout their period of use. Remove all temporary traffic control devices when no longer needed.

MT-01500-3

C. Storage/Staging Areas: The Contractor shall use approved staging areas shown in the Drawings on sheet 1 of 7, the BLM Ramp area, or other areas approved by the Contracting Officer Representative for trailers, equipment, and materials. Fencing of materials or equipment shall not be required at this site; however, the Contractor shall be responsible for cleanliness and orderliness of the area used and for the security of any material or equipment stored in this area.

3.02 LANDSCAPE PRESERVATION:

A. Preservation: Preserve the natural landscape and preserve and protect existing vegetation not required or otherwise authorized to be removed.

Conduct operations, to prevent unnecessary destruction, scarring, or defacing of the natural surroundings in the vicinity of the work.

Move crews and equipment within the rights-of-way and over routes provided for access to the work in a manner to prevent damage to surrounding land or property.

B. Damaged Vegetation: The repair or treatment of injured vegetation and the replacement of trees or shrubs shall be at the expense of the Contractor.

1. The Contractor is responsible for injuries to vegetation caused by

Contractor operations, personnel, or equipment.

2. Restore temporary roads to original landscape. Scarify and re-grade the Government land used for construction purposes not required for the completed installation so that surfaces blend with the natural terrain, provide proper drainage and prevent erosion.

3.3 MAINTENANCE AND REMOVAL:

A. Maintenance: Maintain temporary structures, facilities, and controls as long as needed for safe and proper completion of the work and as directed by the Contracting Officer Representative.

B. Removal: Remove temporary structures, facilities, and controls as rapidly as progress of the work will permit and as approved by the Contracting Officer Representative.

3.04 CLEANUP:

A. Requirements: Construction debris, waste materials, packaging material and the like shall be removed from the work site daily.

B. Restoration of Storage Area: Upon completion of the project and after removal of trailers, materials, and equipment, restore the areas to its original condition, including top soil and seeding as necessary as directed by the Contracting Officer Representative.

MT-01500-4

payment.

4.2 BASIS OF PAYMENT:

A. Payment: No direct payment for the work described under this section will be made. Consideration for this item shall be included in the bid price for other items of the Contract.

SECTION MT-01505

MOBILIZATION

MT-01505-1

A. Section Includes: Preparatory work and operations, including those necessary to the movement of personnel, equipment, supplies and incidentals to the project site; and for other work and operations which must be performed or costs incurred prior to beginning work on the various items on the project site.

A. Units: Progress payments will be made as follows:

1. When 5 percent of the original contract amount is earned from other bid items, 50 percent of the amount bid for mobilization or 5 percent of the original contract amount, whichever is lesser, will be paid.

2. When 10 percent of the original contract amount is earned from other bid items, 100 percent of the amount bid for mobilization or 10 percent of the original contract amount, whichever is lesser, will be paid.

3. Upon completion of work for the project, payment of the amount bid for mobilization in excess of 10 percent of the original contract amount, will be paid.

4. The total sum of all payments shall not exceed the original contract amount bid for mobilization, regardless of the fact that the contractor may have shut down the work on the project or moved equipment away from the project and then back again.

A. Payment: Prices and payment will be full compensation for the work described in this section. No modification and adjustments shall be allowed for costs and changes to mobilization despite changes in fuel or transportation costs. Payment will be made under:

MT-01505-2

Pay Item Pay Unit

MT-01505(1) Mobilization . . . . . . . . . . . . . . . . . . . . . Lump Sum

SECTION MT-02201

WATERING

MT-02201-1

A. Section Includes: Distributing and applying water required for compaction of subgrade, subbase, aggregate base course, cold mill asphalt and for dust control.

A. American Association of State Highway and Transportation Officials

AASHTO T 239-86 Moisture Content of Soil and Soil-Aggregate in Place by

Nuclear Methods (Shallow Depth)

1.3 PROJECT/SITE CONDITIONS:

A. Water Source: The Contractor shall be responsible for obtaining the water source, any permits, and any fees required.

A. Water: Shall be clean and free from deleterious materials.

2.2 EQUIPMENT:

A. Requirements: Provide necessary pumping equipment and water trucks.

Water trucks shall be equipped with a pressure pump and spray bar of adequate capacity and design to ensure uniform application of water in the amounts designated.

3.1 APPLICATION:

A. Requirements: Water shall be applied in such a manner to ensure uniform moisture content.

MT-02201-2

B. Compaction: The amount of water added or applied shall be sufficient to obtain the percent relative compaction required.

C. Dust Control: Water dry material to prevent dust on the project site, waste site and haul roads to the waste sites.

payment.

A. Payment: No direct payment for the work described under this section will be made. The Contractor shall include consideration for this item in the bid price for other scheduled items of the Contract.

SECTION MT-02202

COLD MILL ASPHALT

BRAT ASPHALT PHASE II

MT-02202-1

A. Description of Work: Cold milling shall consist of the milling of existing bituminous pavement to FULL DEPTH AND 2” DEPTH at the locations shown on the drawings in accordance with these specifications and in reasonably close conformity with the lines, grades, and thicknesses shown on the drawings or established by the Government. All existing pavement cold milled shall be STOCKPILED AT GOVERNMENT IDENTIFIED STAGING AREA for use in embankment or base. THE GOVERNMENT INTENDS TO USE COLD MILLED

ASPHALT TO THE MAXIMUM EXTENT TO LIMIT THE USE OF OTHER AGGREGATE

MATERIALS AND EMBANKMENT LISTED IN THIS CONTRACT. All cold millings not used and identified by the Contracting Officer Representative as waste excavation shall be removed and disposed of off site in a state of Montana approved landfill by the Contractor at their expense.

New Bituminous pavement placement in the cold-milled areas shall be accomplished in accordance with the applicable specifications covering the construction of plant mix pavements and as specified herein. The finished grade of the new asphalt concrete shall match the existing grades except where shown in the contract drawings or as directed by the Contracting Officer Representative in the field.

A. The existing asphalt pavement may vary in depth. The Contractor shall verify depths of asphalt on the ramp area. When milling full depth the contractor shall set the mill teeth so that at least 1/2 inches of gravel, located below the existing pavement, is combined and added to the asphalt concrete millings.

2.2 EQUIPMENT:

A. The milling of existing pavement shall be accomplished by a power-operated cold milling machine equipped with a positive means of controlling cross slope and accurately establishing profile grade from the existing pavement or from an external reference. The cold milling machine shall prevent excessive dust from entering the air.

3.1 CONSTRUCTION REQUIREMENTS:

A. General: The existing pavement shall be cold milled and hauled to the

Government identified stockpile location. The full-depth of existing pavement plus a minimum of 1/2 inches of existing gravel underlying the pavement, shall be milled and mixed, by either milling and/or processing, MT-02202-2 to a mixture with approximately 85% AC millings and 15% gravel. The material shall be milled down to particles of size equal to two inches or less. Any particles of size greater than two inches must be removed before STOCKPILING takes place. All millings not used as embankment or base will be identified by the Contracting Officer Representative as waste excavation, the Contractor shall remove and dispose of off site in a state of Montana approved landfill at no additional cost to the Government.

B. Placing of Milled Asphalt: Once the milling process is complete with a resulting mixture containing approximately 15% gravel and 85% asphalt concrete pavement, and all particles of size greater than two inches are removed, the material shall be STOCKPILED at the Government identified stockpiling location. This material will be used as embankment and base.

All cold millings not used and identified by the Contracting Officer Representative as waste excavation shall be removed and disposed of off site in a state of Montana approved landfill by the Contractor at their expense.

C. Traffic Control: Traffic Control shall be accomplished in accordance with

Section MT-01500.

A. Cold milling (FULL DEPTH and 2” DEPTH) will be paid for by Lump Sum. See

Bid documents and contract drawings for identified areas and estimated quantities.

described in this section. Payment will be made under:

MT-02202(1) Cold Mill Asphalt. . . . . . . . . . . . . . . . . . . Lump Sum

SECTION MT-02213

SITE GRADING

MT-02213-1

A. Section Includes: All earthwork required to complete the subgrade and base sections of the project, including clearing and grubbing, culvert pipe abandonment, stockpiling topsoil, topsoil placement, excavation, embankment, asphalt demo, grading, and compacting related work to prepare the site as indicated and as shown on the drawings. THE GOVERNMENT

INTENDS TO USE COLD MILLED ASPHALT TO THE MAXIMUM EXTENT TO LIMIT THE USE

OF OTHER AGGREGATE OR EMBANKMENT MATERIALS LISTED IN THIS CONTRACT.

PAYMENT FOR INSTALLATION OF EMBANKMENT MATERIALS OR BASE MATERIAL, I.E.

COLD MILL ASPHALT MATERIAL OR 3/4-INCH CRUSHED AGGREGATE BASE OR 3-INCH

PIT RUN SHALL BE CONSIDERED IN THIS SECTION.

A. American Association of State Highway and Transportation Officials

AASHTO T 99 Moisture-Density Relations of Soils Using a 5.5-lb (2.5

kg) Rammer and a 12-inch (305 mm) Drop

AASHTO T 239 Moisture Content of Soil and Soil-Aggregate in Place by

Nuclear Methods (Shallow Depth)

1.3 SUBMITTALS / CERTIFICATIONS:

A. Cold Mill Asphalt: Contractor to procure a Certified Geotechnical

Laboratory to retrieve samples from stockpiled Cold Mill Asphalt.

Submittal shall meet Section MT-01009 requirements include the following tests results.

1. Sieve Analysis according to AASHTO T 99.

2. Standard Proctor according to AASHTO T 99.

3. A Loose Wet Density of the material according to Jigging Method

ASTM C 29.

4. Atterburg limits according to ASTM D 4318

1.4 DEFINITIONS:

A. Excavation: All excavation materials shall be considered as unclassified excavation, regardless of its nature.

B. Embankment: Shall be mineral soil, free from peat, frozen material, brush, trees, roots over 2 inches in diameter, and rocks over 6 inches in

MT-02213-2

greatest diameter, and be obtained from on-site during excavation.

Embankment is that material placed beneath asphalt and concrete base material and is noted in the contract drawings as Native Material. Cold Mill Asphalt and suitable excavation materials are to be used as Embankment at the Contracting Officer Representative direction. If needed for embankment, subgrade borrow material shall be 3-Inch pit run.

C. Waste Excavation: Excavation that is not used for construction of embankments shall be removed and disposed of by the Contractor at their expense.

D. Dig-out: Excavation that is below subgrade and unsuitable shall be removed and disposed of by the Contractor at their expense. Fill material will be Cold Milled Asphalt and paid for by neat line cubic yard. Include the cost of transport, grading, and compaction of Cold Mill Asphalt in the unit bid price for Dig-out. PAYMENT FOR THIS WORK WILL BE ITS OWN

LINE ITEM. SEE ITEM MT-02213(2) DIG OUT.

E. Subgrade: Native material and Embankment directly below base material.

F. Base: Layer of material directly below asphalt or concrete surfacing.

Cold Mill Asphalt OR 3/4-Inch Crushed Aggregate is to be used for Base as directed by Contracting Officer Representative.

1.5 QUALITY ASSURANCE:

A. Failure Criteria: Not limited to the following:

1. Formation of pools of moisture where positive drainage is indicated on the drawings and in waste embankment areas.

2. Settlement of embankment.

1.6 PROJECT/SITE CONDITIONS:

A. Excess Material:

1. Usable excess material excavated or Cold Mill Asphalt as directed by the Contracting Officer Representative shall be used in the subgrade embankment construction before the use of subbase imported borrow is allowed (3” Inch Pit Run). Borrow wasting is not permitted.

2. All oversized rocks removed below subgrade elevations shall be brought back to the original subgrade elevation using suitable excavated material or Cold Mill Asphalt as directed by the Contracting Officer Representative before the use of subgrade imported borrow is allowed (3” Inch Pit Run). Borrow wasting is not permitted.

B. Elevations: Verify the grade elevations existing on the site. Notify the Contracting Officer Representative immediately if adjustments are

MT-02213-3

required to provide finish elevations indicated. Site drainage shall be considered of prime importance.

C. Environmental Conditions: Do not attempt to grade saturated material.

Water dry material to prevent dust.

A. General: See definitions.

3.1 CLEARING, GRUBBING, AND TOPSOIL:

A. Clearing and Grubbing Requirements: The area to be excavated, and the surface area to be covered by embankments, shall be thoroughly cleared and stripped of objectionable vegetative matter, brush, trees, stumps, roots, and rocks and shall be removed and disposed of by the Contractor at their expense.

B. Topsoil Requirements: The area to be excavated, and the area to be covered by embankments, shall be stripped of topsoil full depth and stockpiled for use on slopes to be reclaimed by grass. The Contractor shall evenly spread stockpiled topsoil on slopes as directed by the Contracting Officer Representative.

3.2 SCARIFYING:

A. Requirements: Sod and vegetation shall be removed from the surface upon which the fill shall be placed, and the cleared surface shall be completely broken up by scarifying to a minimum depth of 6 inches.

Scarifying furrows shall be a maximum of 3 feet apart and shall be parallel to the center line of the fill. No embankment materials shall be placed until the surface upon which the embankment material shall be placed has been approved.

3.3 PREWATERING:

A. Requirements: Excavation areas may be prewatered before excavating the material. The area to be excavated shall be moistened to the full depth from the surface to the bottom of the excavation. The application of water shall be controlled so that the excavated material will be near the optimum moisture content as specified in paragraph 3.6 A below. When necessary, prewatering shall be supplemented to assure that embankment material and backfill material moisture content comply with paragraph 3.6

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A below. Obtain water for prewatering according to Section 02201 - Watering.

3.4 CULVERT PIPE ABANDONMENT:

A. Excavate 15-Inch culvert pipe identified for abandonment. Remove pipe in its entirety, and fill with suitable embankment material or cold mill asphalt millings per the Contracting Officer Representatives direction. NO

DIG OUT QUANTITY WILL BE PERMITTED FOR THIS ACTION. PAYMENT FOR CULVERT

PIPE ABANDONMENT SHALL BE CONSIDERED IN SITE GRADING LUMP SUM BID.

3.5 INSTALLATION:

A. Excavation: Excavated material shall be used to bring the ramp area to the required subgrade elevations where shown on the drawings or as staked in the field.

B. Grades: Grades not otherwise indicated shall be level, or uniform slopes between points where elevations are given, or between such points and existing finished grades. Abrupt change in slopes shall be rounded.

C. Fill Placement: Embankment, 3/4-Inch Crushed Aggregate Base, 3-Inch Pit

Run, Cold Mill Asphalt materials used to construct the ramp area shall be spread over the full width of the cross section of the embankment to a maximum loose thickness of 6 inches, and shall be compacted as specified in paragraph 3.6 A and B before the next layer is spread. All materials shall have water added as required in Section 02201 – Watering. The material shall then be mixed and processed to produce a uniform blend of material before final placement. The Contractor shall use compaction equipment suitable to the type and depth of material being compacted to obtain the required degree of compaction. The in-place materials shall be free of lenses, pockets, streaks, or layers of materials differing substantially in texture or gradation from the surrounding materials.

D. Disposal of Materials: Excess excavation (Waste Excavation) shall be disposed of offsite at the Contractors expense.

E. Use of Subbase Borrow Material: Do not use subbase imported borrow material until after the materials obtained from the required excavation and Cold Mill Asphalt have been placed in the fill, unless otherwise directed by the Contracting Officer Representative in the field.

3.6 FINISHING:

A. The subgrade shall be finished with equipment capable of shaping and grading the finished surface within the tolerance specified below.

MT-02213-5

1. The surface will be checked for the required grades by the Contracting Officer Representative with tolerances being ± 5 hundredths of a foot.

B. The base shall be finished with equipment capable of shaping and grading the finished surface within the tolerances specified below.

1. The surface will be checked for the required grades by the

Contracting Officer Representative with tolerances being ± 3 hundredths of a foot.

3.7 FIELD QUALITY CONTROL:

A. Moisture Content: During watering and compacting of the embankment subgrade, the optimum moisture content (-4 percent to +2 percent), as determined by AASHTO T 99 and AASHTO T 239, shall be maintained by wetting or drying.

B. Compaction: The embankment subgrade, and all crushed aggregate base course materials, shall be compacted to a minimum density of 95 percent of the maximum dry density obtained by AASHTO T 99.

A. Units:

1. The work described in this section for site grading (TO INCLUDE CULVERT PIPE ABANDONMENT) will be measured and paid for on a lump sum basis.

2. The work described in this section for dig out will be measured and agreed upon by the Contractor and Contracting Officer Representative.

These quantities will be paid for on a cubic yard basis.

described in this section. Payment will be made under:

MT-02213(1) Site Grading . . . . . . . . . . . . . . . . . . . . Lump Sum MT-02213(2) Dig Out . . . . . . . . . . . . . . . . . . . . . .Cubic Yard

MT-02213-6

SECTION MT-02233

AGGREGATE and GEOTEXTILE MATERIALS

MT-02233-1

A. Section Includes: Furnishing aggregate and furnishing and installing geotextile fabric.

1.2 REFERENCES

A. American Association of State Highway and Transportation Officials:

AASHTO T 99-86 Moisture-Density Relationship of Soils Using a 5.5-lb

(2.5 kg) Rammer and a 12-inch (305 mm) Drop

AASHTO T 239-86 Moisture Content of Soil and Soil-Aggregate in Place by Nuclear Methods (Shallow Depth)

1.3 CERTIFICATE OF CONFORMANCE:

A. Certification: Contractor to submit two copies of written certification from the supplier that the Contractor-furnished material to be used on this project conforms to the requirements of this specification section.

Contractor shall include in the submittal, test results from a Certified

Geotechnical Laboratory: Samples shall be obtained from the stockpile of material to be used on this project at the time of Construction for the 3/4-Inch Crushed Aggregate and the 3-Inch Pit Run materials.

1. Sieve Analysis according to AASHTO T 99.

2. Standard Proctor according to AASHTO T 99.

3. A Loose Wet Density of the material according to Jigging Method

ASTM C 29.

4. Atterburg limits according to ASTM D 4318

5. Percentage of Mechanically Fractured Particles according to Montana Department of Transportation (MDT), MT-217.

2.1 MATERIALS: Shall be in conformance with the following requirements:

A. General: Aggregate material shall consist of hard, durable particles or fragments of slag, stone, or gravel crushed of the required size and grading. Shall be visually free from organic matter and lumps or balls of clay and shall meet the requirements for the grading given.

MT-02233-2

B. 3/4-Inch Crushed Aggregate Base: Shall meet the following gradation and requirements including added binder or blending material:

Sieve Size Percent Passing

3/4 inch 100 percent No. 4 40-80 percent No. 10 25-60 percent No. 200 5-20 percent

1. The Maximum liquid limit for the material passing the No. 40 sieve is

35.

2. The Plasticity Index for the material passing the No. 40 sieve may vary between 3 and 10.

3. At least 35 percent by weight of the aggregate retained on the No. 4 sieve must have at least one mechanically-fractured face. Test for determining percentage of mechanically fractured particles shall be according to MDT, MT-217.

C. 3-Inch Pit Run: Shall meet the following gradation and requirements:

Sieve Size Percent Passing

3 inch 95-100 percent 1-1/2 inch 80-100 percent 3/4 inch 65-90 percent No. 4 25-60 percent No. 10 20-50 percent No. 200 12 Max

1. The Maximum liquid limit for the material passing the No. 40 sieve is

25.

2. The Maximum Plasticity Index for the material passing the No. 40 sieve is 6.

D. Geotextile Fabric: Use Propex Geosolutions, Geotex® 4x4HF or approved equal by the Contracting Officer Representative. Install to manufacturer recommendations.

3.1 INSTALLATION:

A. Geotextile fabric shall be installed in accordance with manufactures recommendations.

B. All aggregate base course materials shall be installed in accordance with

Section MT-02213 Site Grading. Include the cost of placement in Pay Items included in Section MT-02213 Site Grading.

MT-02233-3

A. Units:

1. The work described in this section for 3/4-Inch Crushed Aggregate Base and 3-Inch Pit Run will be measured and paid for by the ton delivered to the site. Determination of quantities shall be as follows:

a. Loose Material hauled shall be weighed at a certified scale and tickets given to the Contracting Officer Representative.

2. The work described in this section for Geotextile Fabric shall be measured and paid for by the square yard. Determination of quantities shall be based off the dimensions of the area where it is installed.

A. Payment:

1. The accepted quantities of 3/4-Inch Crushed Aggregate Base and 3-Inch Pit Run will be paid for at the Contract price per unit of measurement, respectively, for the pay item shown in the Bid Schedule.

Price and payment shall be full compensation for furnishing and delivery of the materials. NOTE, Payment for placement shall be considered in items included under Section MT-02213 Site Grading.

2. The accepted quantities of Geotextile Fabric will be paid for at the Contract price per unit of measurement, respectively, for the pay item shown in the Bid Schedule. Price and payment shall be full compensation for furnishing and placing all materials, including all labor, equipment, tools, and incidentals necessary to complete the work described in this section.

Payment Pay Unit

MT-02233(1) 3/4-Inch Crushed Aggregate Base . . . . . . . . . . . . .Ton MT-02233(2) 3-Inch Pit Run. . . . . . . . . . . . . . . . . . . . . .Ton MT-02233(3) Geotextile Fabric. . . . . . . . . . . . . . . . Square Yard

End of Section

MINOR CONCRETE

MT-03306-1

SECTION MT-03306

A. Section Includes: Furnishing and placing cast-in-place concrete, formwork and reinforcement steel.

B. Related Sections

General Information and Requirements Section 01009 Site Grading Section 02213 Aggregate and Geotextile Materials Section 02233

1.2 SUBMITTALS:

A. General: Submittals shall be according to Section 01009 - General

Information and Requirements.

B. Certificates of Conformance: Submit 2 copies of written certification from the supplier of the following Contractor-furnished items to be used on this project that they conform to the requirements of this specification section.

1. Portland Cement

2. Aggregate

3. Isolation Joint Materials

4. Air-Entrainment Admixture

5. Grip Strut Plank

1.3 QUALITY ASSURANCE:

A. Causes for Rejection: Concrete may be rejected for, but not limited to, the following reasons:

1. Freezing within the first 3 days of placement

2. Excessive or inadequate slump

3. Segregation of aggregate or over-vibration resulting in excessive water in the surface of the concrete

4. Honeycomb over 25% of the surface

5. Voids larger than 2 inches across

6. Exposed reinforcing steel

7. Misalignment of concrete

8. Substandard aggregate in the mix

MT-03306-2

9. Failure to cover or seal concrete during initial 7-day curing period.

A. Cement: Portland cement, Type IIA, according to ASTM C 150. The use of caked or hardened cement will not be permitted. Cement for job mixed concrete shall be delivered to the job site in unopened sacks.-

B. Water: Potable water shall be used for mixing concrete.

C. Aggregates: The aggregate shall be hard, durable, uncoated rock according to ASTM C 33.

1. The coarse aggregate shall have a maximum size of 1 inch, and not over 5 percent passing the No. 4 sieve.

2. The fine aggregate shall completely pass the No. 4 sieve with no more than 5 percent passing the No. 100 sieve. The fine aggregate shall contain no silt, loam, clay or organic particles.

D. Air-Entraining Admixture: ASTM 260. The amount of air shall be 4 to 6 percent when maximum aggregate size is 3/4-inch, and 4.5 to 7.5 percent when maximum aggregate size is 3/8-inch. A variations of plus or minus 1 percent is allowable.

E. Isolation Joint Materials: Preformed filler strips shall be according to

ASTM D 994 and shall be the full width and depth of the joint. Unless otherwise indicated, the material shall be 1/2-inch thick.

F. Ditch Crossing Structure:

1. Grating shall be Grip Strut 10-Diamond Plank (24” Width)

a. Steel 12 ga.

b. 3 inch height

c. 11.1 lbs / LF

d. Catalog Number 103012

2.2 MIXES – CONCRETE:

A. Concrete: Design of mixed concrete shall be according to ASTM C 94 and be designed for a 28-day compressive strength of 4000 psi, and a slump of 2 to 4 inches as determined by ASTM C 143.

B. Mixing Materials: Concrete shall be machine mixed. Mixers shall be batched according to their capacity and not overloaded. Mixing of ingredients shall continue for at least 3 minutes. The concrete shall be placed as soon as possible after mixing to prevent cold joints.

MT-03306-3

2.3 SOURCE QUALITY CONTROL

A. Concrete Testing: Shall be conducted in the presence of the Contracting

Officer Representative who shall be given 48-hours notice before any test is to be conducted. The Contractor shall PAY and make arrangements for a certified, independent testing laboratory to perform the air content tests, compression tests of 3 cylinders and slump tests to substantiate mix designs. Record and distribute the results.

3.1 PREPARATION:

A. Clearing: Shall be according to Site Preparation in Section MT-02213.

B. Subbase Preparation: Subbase and earth walls to be in contact with concrete shall be undisturbed or compacted according to Section MT-02213.

C. Form Construction: ACI 347R. Construct forms to the sizes, shapes, lines, and dimensions shown on the drawings and Manufacturer’s installation instructions, to obtain accurate alignment, location, grades, and level and plumb surfaces in finished structures. The Contractor shall provide construction aids and imbedded items such as anchor bolts.

Fabricate forms for easy removal without hammering or prying against the concrete surfaces. Provide crush plates or wrecking plates if stripping may damage the concrete. Form oil may be applied to facilitate removal of forms. Forms and subbase shall be wet before placement of concrete.

D. Form Inspection: Notify the Contracting Officer Representative 48 hours in advance of concrete placement to allow for inspection of forming and placement of items to be imbedded in the concrete. Excess water shall be removed from the forms before concrete placement.

3.2 CONCRETE PLACEMENT:

A. Mix Design: Concrete shall not be placed until the mix design has been approved by the Contracting Officer Representative.

B. Placement and Consolidation: Concrete shall be placed in lifts with a maximum depth of 18 inches. Each lift shall be adequately vibrated, rodded, or spaded into place to fill voids. Where more than one lift is placed, a vibrator shall be used to consolidate the concrete by penetrating through the upper lift and at least 6 inches into the lower lift. Vibrators shall not be used next to the form or to move concrete.

Concrete shall be deposited as nearly as practical to its final position to avoid flow causing segregation of the aggregate. Concrete shall not be

MT-03306-4

dropped more than 5 feet vertically without the use of a tremie or similar device.

C. Bonding to Existing Concrete: When a bond is desired between a fresh pour of concrete placed against concrete which has set, the surface of the in-place concrete shall be thoroughly cleaned of loose material, and the in-place concrete soaked with water. When no bond is desired, the surface of the existing concrete shall be painted with asphalt or other material to prevent bonding.

D. Concrete Placement Under Adverse Conditions: During hot weather, refer to

ACI 305R. During cold weather, refer to ACI 306R. Materials required for protection shall be on the jobsite before concrete work is started. Do not place concrete on a frozen subgrade or against surfaces having deposits of frost, snow, or ice.

3.3 CONCRETE FINISHING:

A. Concrete Surface Finishes: The top surface of walls and exterior slabs shall be given a wood-float finish after screening. Concrete requiring skid-resistant finishes shall be broom-finished with horsehair or straw brooms. Interior slabs shall be given a steel-trowel finish unless otherwise indicated on the drawings. Power-trowels may be used. Brooms shall have a minimum width of 18 inches and shall be applied perpendicular to the centerline. Joints and panel borders shall be edged with a metal tool to leave a smooth border on the concrete.

B. Form Removal: Formwork not supporting concrete may be removed after curing at not less than 50 degrees F for 24 hours after placing the concrete, and when curing and protection procedures are followed as specified. The concrete should be sufficiently hard so as not to be damaged by form removal.

C. Concrete Finish Patching: Immediately after form removal, remove minor bulges and projections on exposed concrete by chipping or tooling, and rub or grind the surface. Chip honeycombed or other defective areas to solid concrete, cutting edges to right angles with the surface. Brush cavities with a grout of cement and water, and paint with portland cement mortar.

Cure repairs the same as the concrete.

3.4 FIELD QUALITY CONTROL:

A. Testing: Testing shall be conducted in the presence of the Contracting

Officer Representative who shall be given 48-hours notice before any test is to be conducted. The Contractor shall be responsible for any fees associated with performing concrete testing. The Contractor shall make arrangements for a certified, independent testing laboratory to perform the air content tests, 3 - 28-day cylinders, and slump tests to substantiate each days pour. Record and distribute the results.

MT-03306-5

3.5 PROTECTION:

A. Requirements: During the curing period, protect concrete from load stresses, shock loads, or vibration. Protect surfaces from damage by equipment, other materials, running water, or rain.

A. Minor Concrete: The work described in this section for sidewalk and concrete pad will be measured and paid for by the cubic yard, based on the dimensions of the structure and the details shown on the drawings.

Include the cost of all appurtances, in the unit cost for minor concrete.

No extra quantity will be added for concrete placed beyond the lines and grades shown.

B. Ditch Crossing: The work described in this section pertaining to construction of the Ditch Crossing will be paid for by Lump Sum. Include the cost of all appurtances, i.e., Grip Strut, stem walls, footings etc…, in the unit cost for ditch Crossing.

described in this section. Payment will be made under:

MT-03306(1) Minor Concrete . . . . . . . . . . . . . . . . . . .Cubic Yard MT-03306(2) Ditch Crossing . . . . . . . . . . . . . . . . . . . .Lump Sum

ASPHALT PAVING

MT-321216-1

SECTION MT-321216

1.1 SUMMARY:

A. Section Includes: Furnishing, placing and compacting TWO, 2 inch compacted course of asphalt on the prepared surface.

1.2 ACTION SUBMITTALS:

A. Product Data: For each type of product.

1. Include technical data and tested physical and performance properties.

2. Job-Mix Designs: By authorities having jurisdiction for approval of the job mix proposed for the Work.

1.3 INFORMATIONAL SUBMITTALS:

A. Material Certificates: For each paving material

B. Material Test Reports: For each paving material, by a qualified testing agency.

C. Field quality-control reports.

1.4 QUALITY ASSURANCE:

A. Manufacturer Qualifications: A paving-mix manufacturer registered with and approved by authorities having jurisdiction or the Montana DOT.

B. Testing Agency Qualifications: Registered with and approved by authorities having jurisdiction or the Montana DOT.

C. Regulatory Requirements: Comply with materials, workmanship, and other applicable requirements of authorities having jurisdiction or the Montana DOT for asphalt paving work.

1.5 FIELD CONDITIONS:

A. Environmental Limitations: Do not apply asphalt materials if subgrade is wet or excessively damp, if rain is imminent or expected before time required for adequate cure, or if the following conditions are not met:

1. Tack Coat: Minimum surface temperature of 60 deg F.

MT-321216-2

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

PART 2: PRODUCTS

2.1 AGGRECATES:

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

B. Aggregate: Aggregates shall consist of crushed stone, crushed gravel, or crushed slag with or without natural sand or other inert finely divided mineral aggregate. The portion of materials retained on the No. 4 (4.75mm) sieve is course aggregate. The portion passing the No. 4 (4.75mm) sieve and retained on the No. 200 (0.075mm) sieve is fine aggregate, and the portion passing the No. 200 (0.075mm) sieve is mineral filler.

C. Coarse Aggregate: Shall consist of sound, tough, durable particles, free from adherent films of matter that would prevent thorough coating and bonding with the bituminous material and be free from organic matter and other deleterious substances. The percentage of wear shall not be greater than 40 percent when tested in accordance with ASTM C 131. The sodium sul-fate soundness loss shall not exceed 10 percent, or the magnesium sulfate soundness loss shall not exceed 13 percent, after five cycles, when tested in accordance with ASTM C 88. Aggregate shall contain at least 70 percent by weight of individual pieces having two or more fractured faces and 85 percent by weight having at least one fractured face. The area of each face shall be equal to at least 75 percent of the smallest mid-sectional area of the piece. When two fractured faces are contiguous, the angle be-tween the planes of fractures shall be at least 30 degrees to count as two fractured faces. Fractured faces shall be obtained by crushing. The aggre-gate shall not contain more than a total of 8 percent, by weight, of flat particles, elongated particles, and flat and elongated particles, when tested in accordance with ASTM D 4791 with a value of 5:1. Slag shall be air-cooled, blast furnace slag, and shall have a compacted weight of not less than 70 pounds per cubic foot (1.12 mg/cubic meter) when tested in accordance with ASTM C 29.

D. Fine Aggregate: Shall consist of clean, sound, durable, angular shaped particles produced by crushing stone, slag, or gravel that meets the re-quirements for wear and soundness specified for coarse aggregate. The ag-gregate particles shall be free from coatings of clay, silt, or other ob-jectionable matter and shall contain no clay balls. The fine aggregate, including any blended material for the fine aggregate, shall have a plas-ticity index of not more than 6 and a liquid limit of not more than 25 when tested in accordance with ASTM D 4318. Natural (non-manufactured) sand may be used to obtain the gradation of the aggregate blend or to im-prove the workability of the mix.