Att 02_140P8420R0005_Project Specifications.pdf

PINNACLES NATIONAL PARK

PACIFIC WEST

West Side and Maintenance/Housing & Visitor Center Area Paving

PINN

PMIS NO. 198044

100% FINAL PROJECT SPECIFICATIONS

NATIONAL PARK SERVICE

PACIFIC WEST REGION

6/15/2020

Solicitation No. 140P8420R0005, Attachment No. 02

Table of Contents Project Specifications

Pinnacles National Park, Package 198044 West Side Visitor Center and Maintenance/Housing Area Paving

May, 2020

DIVISION 1 - GENERAL REQUIREMENTS

01010 Summary of Work 01430 Contractor Quality Control

DIVISION 2 - SITE WORK

02316 Roadway Excavation and Embankment 02320 Culvert Trenching and Backfilling 02332 Watering 02612 Culverts 02712 Bituminous Tack Coat 02716 Hot Asphaltic Concrete Pavement 02725 Aggregate Base 02765 Traffic Markings 02778 Concrete Curb and Waterway

PINN Pkg. 198044 – 5/20

SECTION 01010-PWR GENERAL REQUIREMENTS

PART 1: DESCRIPTION OF WORK

1.1 The work of this project consists of installing culvert pipes, poured in place concrete curbing, excavating drainage swales, excavating, grading and compacting existing aggregate surfaced parking areas, placing hot asphalt concrete paving, and associated roadway striping and traffic control and incidentals, complete and ready for use on West Side Visitor Center and Maintenance Parking areas, Monterey County, Pinnacles National Park.

1.2 All work will be performed under a single contract.

PART 2: EXISTING UTILITIES

2.1 There are existing utilities in the immediate vicinity of the project. If Contractor damages unknown utility, repair utility, and equitable adjustments will be made in accordance with the Changes clause of the General Provisions. Provide seven days advance notice to Contracting Officers Representative before beginning any trenching or excavation activities. Contractor is required to also contact Utility Services Alert (USA) and arrange for existing utilities to be marked prior to trenching.

PART 3: CONTRACTOR’S USE OF PREMISES

3.1 CONSTRUCTION CAMP: Establishment of a camp within the park will not be permitted.

3.2 CLOSURES: The contractor shall at all times conduct operations in a safe manner and to ensure the least inconvenience to the public. The contractor may close both parking areas to public and employee vehicle use on weekdays (Monday – Thursday 7:00AM to 5:30PM) during the project. The contractor may close one lane of the main park entrance road at a time for the culvert installation. The Contractor must give Contracting Officer 15 calendar days of notice before the proposed closures. The road and parking areas shall be fully reopened for public use on each weekend (Friday – Sunday).

3.4 STORAGE - STAGING AREAS:

A. Confine storage of materials and equipment to the project area. Limits of use and control shall be subject to Contracting Officer's approval.

3.5 FIELD OFFICE: Not Used.

3.6 PRESERVATION OF NATURAL FEATURES: Confine all operations to work limits of the project. Heavy equipment will be confined to use on the road bench. Prevent damage to natural surroundings. Avoid unnecessary soil compaction, disturbance of ground cover, and creation of wheel ruts. Restore damaged areas, repairing or replacing damaged trees and plants, at no additional expense to the Government. Do not fasten ropes, cables, or guys to existing trees. All equipment shall be thoroughly pressure washed prior to transport to the park to prevent unintentional importation of seed or soil materials. Contractor shall allow for COR to inspect equipment to assure that it is clean prior to entering Park.

3.7 HAULING RESTRICTIONS: Access to the project site is via State Route 146 east of Soledad. Portions of this road are extremely narrow (1-1/2 lanes wide). Use extreme caution with large trucks and loads on this narrow roadway. Comply with all legal load restrictions in the hauling of materials. Load restrictions on park roads are identical to the state load restrictions with such additional regulations as may be imposed by the Park Superintendent.

3.8 HOUSEKEEPING:

A. Keep project neat, orderly, and in a safe condition at all times. Store and use equipment, tools, and materials in a manner that does not present a hazard. Immediately remove all hazardous rubbish. Do not allow rubbish to accumulate. Provide on site containers for collection of rubbish and dispose of it at frequent intervals during progress of work.

B. Wet down dry materials and rubbish to prevent blowing dust.

C. Do not bury refuse inside the park. Dispose of waste materials legally at public or private dumping areas outside the park.

PART 4: SPECIAL CONSIDERATIONS

4.1 Cell Phone Service – There is spotty cell service in the project area. There are cell phone signal boosters at the Visitor Center and the Maintenance Building.

PART 5: COMMENCEMENT, PROSECUTION, AND COMPLETION

5.1 The Contractor shall commence work within 15 calendar days after the date of receipt of the "Notice to Proceed." Work shall progress in an orderly and diligent manner and shall be completed within 45 calendar days from first day of the Contract.

PART 6: EXAMINATION OF THE SITE

6.1 All bidders are urged to visit the job site and examine existing conditions before submitting bids. All bidders will be held to have the same knowledge concerning the site and the on-ground conditions as if they had inspected the job site.

PART 7: ABBREVIATIONS

7.1 The following list of abbreviations, which may be used in the Construction Specifications or Special Provisions, refer to the organizations and specifications of the organizations listed below:

AAN - American Association of Nurseryman AASHTO - American Association of State Highway and Transportation Officials ACI - American Concrete Institute AISC - American Institute of Steel Construction AI - Asphalt Institute ANSI - American National Standards Institute ASTM - American Society for Testing and Materials AWWA - American Water Works Association Caltrans- State of California Department of Transportation FHWA - Federal Highway Administration FS - Federal Specifications MSHA - Mine Safety and Health Administration MUTCD - Manual on Uniform Traffic Control Devices NEC - National Electric Code NEMA - National Electrical Manufacturers Association NFPA - National Fire Protection Association NIOSH - National Institute of Occupational Safety and Health NPS - National Park Service NSF - National Sanitation Foundation OSHA - Occupational Safety and Health Administration PCA _ Portland Cement Association UBC - Uniform Building Code UL - Underwriters Laboratories, Inc.

PART 8: FIELD ENGINEERING

8.1 LAYOUT OF WORK: The Contractor will layout the work in consultation with the Contracting Officer's Representative. It is the contractor’s responsibility to reference as needed locations of parking stalls so that stalls can be reestablished following paving. Locations on drawings are conceptual and subject to final adjustment on site as the work progresses.

Contractor shall layout road centerline, cross pitch and super elevation in a manner required to achieve straight lines, smooth curves and gentle transitions between grades.

8.2 FIELD CONTROLS: Locations and elevations shown on the drawings are subject to final field adjustment by Contracting Officer before construction. Contractor shall immediately notify Contracting Officer of apparent errors discovered on the drawings or in the field control. If changes are required, the Contractor shall cooperate with Contracting Officer in prompt establishment of the field control for altered or adjusted work.

8.3 SPECIFICATIONS: In addition to the project specifications, reference is made to the California Department of Transportation, Standard Specifications, 2018 (hereafter referred to as "CalTrans").

PART 9: ACCIDENT PREVENTION

9.1 DESCRIPTION: The work of this section consists of establishing and implementing an effective accident prevention program and providing a safe environment for all personnel and visitors.

9.2 SUBMITTALS:

A. ACCIDENT PREVENTION PROGRAM: At the preconstruction conference submit for approval an accident prevention program. The program shall include:

Name of responsible supervisor to carry out the program.

Weekly and monthly safety meetings.

First aid procedures.

Training, both initial and continuing.

Planning for possible emergency situations.

Certificates: Provide certificates from a mechanic that all mechanical equipment has been inspected and meets OSHA requirements.

B. TEST REPORTS: Submit a copy of test reports, as required by OSHA, for personnel working with hazardous materials.

C. MEETING AND INSPECTION REPORTS: Submit a report of safety meetings and of inspections.

9.3 QUALIFICATIONS OF EMPLOYEES:

A. Ensure that employees are physically qualified to perform their assigned duties in a safe manner.

B. Do not allow employees to work whose ability or alertness is impaired because of drugs, fatigue, illness, intoxication, or other conditions that may expose themselves or others to injury.

C. Operators of vehicles, mobile equipment, hoisting equipment, and hazardous plant equipment shall be able to understand signs, signals, and operating instructions, and be capable of operating such equipment. Provide operating instructions for all equipment.

E. Newly hired operators shall be individually tested by an experienced operator or supervisor to determine if they are capable of safely operating equipment.

9.4 ACCIDENT REPORTING: The Contractor shall report all accidents to the Contracting Officer as soon as possible and assist the Contracting Officer and other officials as required in the investigation of the accident.

9.5 FIRST AID FACILITIES: Provide adequate facilities for the number of employees and the type of construction at the site.

9.6 PERSONNEL PROTECTIVE EQUIPMENT: Meet requirements of NIOSH and MSHA, where applicable, as well as ANSI.

9.7 EMERGENCY INSTRUCTIONS: Post telephone numbers and reporting instructions for ambulance, physician, hospital, fire department, and police in conspicuous locations at the work site.

9.8 PROTECTIVE EQUIPMENT:

A. Inspect and maintain other protective equipment and devices before use and on a periodic basis to ensure safe operation.

B. It is always the Contractor’s responsibility to require all those working on or visiting the site to wear hard hats and other necessary protective equipment. Change liners before reissuing hats.

9.9 SAFETY MEETINGS: As a minimum, conduct weekly 15 minute "toolbox" safety meetings. These meetings shall be conducted by a foreman and attended by all construction personnel at the worksite.

9.10 Hazardous Material Action: It shall be the responsibility of all operators and contractors, functioning within the park to properly cleanup, mitigate and remediate if necessary, all unauthorized discharges of hazardous materials or non-hazardous chemical and biological products released from fleet and/or other support vehicles or stationary sources. Response shall be consistent with guidelines established by federal, state and local regulations, and as outlined within the operator's Safety or Hazardous Materials Business Plan.

A. If a spill, leak or other release occurs, the operator shall as soon as possible, without impeding cleanup, notify the National Park Service Emergency Dispatch.

B. All vehicles with a load rating of two (2) tons or greater should carry, at minimum, enough absorbent materials to effectively immobilize the total volume of fluids contained within the vehicle. Sand or soil is not approved absorbent materials.

C. Vehicles and operators transporting hazardous materials must be DOT certified and/or registered, and operators must be state licensed and knowledgeable of local emergency response and personal safety protocol.

D. Oil leaks from the various pieces of equipment shall be repaired immediately on discovery.

Repairs shall be performed at the site of discovery or breakdown. Oil pans and absorbent material shall be in place prior to beginning repair work.

E. Absorbent materials may be ordered from:

Lab Safety Supply P.O. Box 1368 Janesville, WI 53547-1368

(800) 356-0722

Polysorb Blankets JB-17-921 Universal Sorbent Rolls JB-8617

New Pig Corporation 1 Pork Avenue Tripton, PA 16684

(800) 468-4647

F. Oil pans and absorbent materials shall be used to prevent leaks, spills and draining of petroleum fluids from falling onto bare ground and paved surfaces during servicing of equipment. Soils contaminated with such fluids shall be dug up and placed in appropriate safety containers, removed from Pinnacles NP and disposed of according to California State regulations.

G. Puddles of oil, gas, hydraulic or other similar petroleum-based fluids of one (1) gallon or more or affected areas of more than one (1) square foot shall be considered "Road Damage" on paved surfaces.

I. Loss of any petroleum fluid of forty (40) gallons or greater shall be reported through the 911 emergency phone system immediately to initiate emergency response actions. Clean up shall be according to state regulations.

PART 10: PRECONSTRUCTION CONFERENCE:

10.1 PRECONSTRUCTION CONFERENCE: Before start of construction, Contracting Officer will arrange an on-site meeting with Contractor. The meeting agenda will include the following:

Claims procedures Correspondence procedures Designation of responsible personnel Labor standards provisions Payroll reports Changes Payments to Contractor Subcontractors National Park Service regulations Accident prevention program (including name of responsible supervisor) Accident reporting Documents required under the contract Park rules and regulations Saturday, Sunday, holiday and night work Safety program (compliance with the "Accident Prevention" clause of the General Provisions) Tentative construction schedule Submittal of shop drawings, project data, and samples Relationship of Division 1 to other divisions Spill Response Plan

PART 11: SUBMITTALS

11.1 DESCRIPTION: The work of this section consists of submittal requirements before and during construction.

11.2 SHOP DRAWINGS, PRODUCT DATA, AND SAMPLES:

A. As specified in the individual sections, forward submittals to Contracting Officer at least 15 days before need for approval.

B. After approving submittals, Contracting Officer will return one copy to the Contractor.

C. If submittals are not approved, Contracting Officer will return all copies to Contractor with reasons for rejection. Resubmit, identifying changes.

D. Any work done before approval shall be at Contractor's own risk.

11.3 APPROVED EQUALS: A request for approval constitutes a representation that Contractor:

A. Has investigated the proposed item and determined that it is equal or superior in all respects to that specified.

B. Will provide the same warranties for the proposed item as for the item specified.

C. Has determined that the proposed item is compatible with interfacing items.

D. Will coordinate the installation of an approved item and make all changes required in other elements of the work because of the substitution.

E. Waives all claims for additional expenses that may be incurred as a result of the substitution.

11.4 PROGRESS SCHEDULES: As soon as possible after Notice of Award and before beginning any work, submit Progress Schedule. Contracting Officer will review the Progress Schedule for format and content. Submit four copies of Progress Schedule (normally in bar chart form) showing estimated starting and completion dates for each part of the work. The first progress payment will not be issued until an acceptable progress schedule is submitted.

PART 12: TEMPORARY SERVICES

12.1 DESCRIPTION: The work of this section consists of providing temporary services required for Contractor's performance of the work of this Contract.

12.2 SANITARY FACILITIES: Contractor shall provide a minimum of one temporary chemical toilet for contract & subcontractor employee. Arrange for minimum of weekly pumping.

12.3 DRINKING WATER: Provide enough quantity of good drinking water in sturdy, sanitary containers. Containers shall be located, so they would not be subjected to contamination. Water shall be changed at least once a day.

12.4 FIRE PREVENTION AND PROTECTION:

A. Hazard Control: Take all necessary precautions to prevent fire during construction. Provide adequate ventilation during use of volatile or noxious substances.

B. Equipment Required: UL Class 2A, 2-1/2-gallon, water-type, stored pressure extinguisher and UL Class 10, Type I, 15-pound, C. Carbon dioxide extinguisher. Furnish a minimum of one of each type of extinguisher for each area of work. Travel distance from any workstation to the nearest extinguisher shall not exceed 100 feet.

D. Spark Arresters: Equip all gasoline or diesel-powered equipment used in potential forest or grass fire locations with spark arresters approved by the U.S. Forest Service. Exceptions will be made for diesel equipment equipped with a turbo-charger. Written determinations of areas and period of potential fire hazard will be issued by Contracting Officer.

E. Welding: Welding or cutting by torch shall be performed only when adequate fire protection is provided.

PART 13: PROTECTION OF PUBLIC

13.1 Construction and traffic control signing shall be installed in accordance with Caltrans Standard Specifications, Section 12, and the Manual of Uniform Traffic Control Devices (MUTCD) by the Federal Highway Administration (FHWA).

13.3 Traffic control personnel shall be attired and perform their work in compliance with

MUTCD.

PART 14: PROJECT CLOSEOUT

14.1 DESCRIPTION: The work of this section consists of final cleanup, closeout submittals, final inspection procedures, and safety precautions.

14.2 CLEANING: Remove all tools, equipment, surplus materials, and rubbish. Sweep paved areas and restore natural areas to original condition. At time of final inspection, project shall be thoroughly clean and ready for use.

14.3 AS-CONSTRUCTED DRAWINGS: Show all changes and revisions to the original design that affect the permanent structure and will exist in the completed work.

14.4 SUBSTANTIAL COMPLETION AND FINAL INSPECTION: Submit written certification that project is substantially complete, and a final inspection is requested.

Contracting Officer will inspect within 10 days of receipt of request.

A. When Contracting Officer determines that the work is substantially complete, he will prepare a list of deficiencies to be corrected before final acceptance and issue a Letter of Substantial

Completion.

B. If Contracting Officer determines that the work is not substantially complete, he will immediately notify Contractor in writing, stating reasons. After completing work, Contractor shall resubmit certification and request a new final inspection.

14.5 ACCEPTANCE OF THE WORK: After all deficiencies have been corrected, a Letter of Acceptance will be issued.

END

PINN Pkg. 198044 - 5/20 01430-1

CONTRACTOR QUALITY CONTROL

SECTION 01430

PART 1 GENERAL

1 .1 DESCRIPTION

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

1 .2 SUBMITTALS

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

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

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

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

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

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

B. Daily Submittals: Submit Daily Quality Control Report showing all inspections and tests on the first workday following the date covered by the report. Electronic files (MS Word) of the attached Daily Report and Testing Report forms will be provided to the contractor prior to the notice to proceed being issued.

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

D. Off Site Inspection Reports: Submit prior to shipment.

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

1 .3 QUALITY ASSURANCE

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

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

C. Testing Laboratory and Equipment

PINN Pkg. 198044 - 5/20 01430-2

1. All measuring devices, laboratory equipment, and instruments shall be calibrated at established intervals against certified standards in accordance with NBS requirements. Upon request, measuring and testing devices shall be made available for use by the Government for verification tests.

2. The testing laboratory organization shall be experienced in the type of testing work to be done.

PART 2 PRODUCTS NOT USED.

PART 3 EXECUTION

3 .1 ON-SITE CONTROL

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

B. Preparatory: Perform before beginning each feature of work.

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

2. Ensure that provisions have been made for field control testing.

3. Examine the work area to ensure that all preliminary work has been completed.

4. Verify all field dimensions and advise the Contracting Officer of discrepancies.

5. Ensure that necessary equipment and materials are at the project site and that they comply with approved shop drawings and submittals.

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

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

3 .2 DOCUMENTATION

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

3 .3 ENFORCEMENT

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

PART 4 MEASUREMENT AND PAYMENT

4 .1 CONTRACTOR QUALITY CONTROL

A. Payment will be included in the bid item to which this work relates.

END OF SECTION

PINN Pkg. 198044 - 5/20 01430-3

CONTRACTOR'S Q.C. DAILY REPORT

REPORT NO. _________ SHEET 1 OF _________

PROJECT

CONTRACT NO.

DATE

PARK

CONTRACTOR'S REPRESENTATIVE ON THE JOB

WEATHER (Rain, Snow, Cloudy, Windy, etc.)

RAINFALL

Inches

TEMPERATURE GROUND CONDITIONS (Dry, Damp, Wet, Frozen, etc.)

MAX.

MIN.

1. PRIME CONTRACTOR

NO. EMPLOYEES BY JOB CATEGORIES Hours HEAVY EQUIPMENT ON

JOB

NO.

UNITS

HRS. WORKING

YES NO Comments

WORK PERFORMED BY PRIME CONTRACTOR:

MATERIALS DELIVERED OFFICIAL VISITORS TO SITE

2A. SUBCONTRACTOR, _____________________________________________: (If more than one subcontractor use copies of following page.)

NO. EMPLOYEES BY JOB CATEGORIES Hours HEAVY EQUIPMENT ON

JOB

NO.

UNITS

WORK PERFORMED BY SUBCONTRACTOR:

3. SPECIFIC INSPECTIONS: (Inspections performed, results, and corrective actions)

4. TESTING: 1 Check if any testing was performed today. (Complete and attach Test Report Information Sheets.)

Type and Location of Testing: ____________________________________________________________________________________

5. VERBAL INSTRUCTION RECEIVED FROM GOVERNMENT ON CONSTRUCTION DEFICIENCIES OR RE-TESTING

REQUIRED:

6. REMARKS:

7. CERTIFICATION:

I certify that the above report is complete and correct and that I, or my authorized representative, have inspected all work performed this day by the prime contractor and each subcontractor and determined that all materials, equipment, and workmanship are in strict compliance with the plans and specifications except as may be noted above. ____________________________________________________________ Contractor's Designated Quality Control Representative

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SUBCONTRACTOR WORK CONTINUED:

CONTRACT NO. REPORT NO. _______

SHEET ____ OF ____

2 SUBCONTRACTOR,

NO. EMPLOYEES BY JOB CATEGORIES Hours HEAVY EQUIPMENT ON

JOB

NO.

UNITS

2 SUBCONTRACTOR,

JOB

NO.

UNITS

JOB

NO.

UNITS

JOB

NO.

UNITS

YES NO COMMENTS

PINN Pkg. 198044 - 5/20 01430-5

TEST REPORT INFORMATION SHEET

CONTRACT NO. REPORT NO. _____________

SHEET _____ OF _________

1. Individual Making Inspection or Test:

2. Testing Laboratory; Name: Phone #:

Address:

3. Description of Work and Test Method:

4. Location of Samples and Tests or Inspections:

5. Specification Section:

6. Inspection or Test Data:

7. Test Results and Interpretations of Test Results:

8. Comments or Professional Opinion About Compliance of Inspected Work or Tested Work with contract Document Requirements:

9. Recommendations:

10. Corrective Actions Taken:

CERTIFICATION:

I certify that the above testing report is complete and correct and that all testing performed this day for this contract is in strict compliance with the plans and specifications except as noted above.

Signature of Inspector

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ROADWAY EXCAVATION AND EMBANKMENT

SECTION 02316

ROADWAY EXCAVATION AND EMBANKMENT

1 .1 DESCRIPTION

A. The work of this section consists of excavation of subgrade soil to achieve specified re-grading of the west end of Housing area access drive and parking, as well as road shoulder widening at the Fee Booth area.

1 .2 CLASSIFICATION

A. All excavation will be considered unclassified regardless of the nature of material encountered.

PART 2 PRODUCTS

2 .1 EXISTING EMBANKMENT MATERIAL

A. Not Used.

3 .1 EXCAVATION

A. Excavate to lines and grades shown as required to achieve positive drainage into and out of each culvert. As well as achieving required grading for concrete V-channel and roadway cross section in housing Access drive.

B. Use excavated soil to backfill new curbs and haul any remaining excess from project site to designated stockpile site in Jawbone Parking area.

3 .2 DITCHES

A. Construct drains, channels, and ditches for culverts as shown or as directed. Round and trim ditch slopes neatly to line. Final flow line grade shall be reasonably uniform to provide free drainage without puddling.

PART 4 MEASUREMENT AND PAYMENT

4 .1 ROADWAY EXCAVATION AND EMBANKMENT

A. Culvert inlet and outlet ditch swale excavation will be paid incidental to the Culvert Installation Bid Items.

B. Housing Access Drive regrading subgrade excavation will be paid incidental to the Aggregate Base Course Bid Item.

PINN Pkg. 198044 5/20 02320-1

UTILITY TRENCHING AND BACKFILLING

SECTION 02320

CULVERT TRENCHING AND BACKFILLING

A. The work of this section consists of trenching and backfilling for the construction and installation of culverts under the roadway as well as outlet ditches for new culverts. All trenching will be open cut.

1 .2 SUBMITTALS

A. As specified in Section 01010.

B. Written description of barricading, shoring, cribbing, bracing, and sloping precautions.

1 .3 PROJECT CONDITIONS

A. Arrange construction sequences to provide the shortest practical time that the trenches will be open to avoid hazard to the public, and to minimize the possibility of trench collapse.

1 .4 EXCAVATION CLASSIFICATION

A. Regardless of the nature of material excavated, all excavation will be considered unclassified.

2 .1 GENERAL

A. All backfill material shall be approved before use and be free of cinders, ashes, ice, frozen soil, large hard clods, organic debris, or other deleterious items. Trench excavation materials may be used as approved.

2 .2 BACKFILL MATERIAL

A. Materials used in backfill, as shown in trench details, are defined as follows:

1. Impermeable Backfill Collar at Inlet: Place and compact an approximate three linear feet of impermeable soil around the Culvert pipe at the inlet, to prevent piping of water flow through the permeable bedding and backfill.

2. Bedding (BD): When rock, unstable material, or wet trench is encountered at the excavated grade for utility installation, bedding is required. Materials shall be predominantly sand and gravel, having a plasticity index less than 6. Excess excavated aggregate base from the parking areas may be used as culvert bedding and select backfill.

Bedding may be omitted if, in the opinion of the Contracting Officer, the excavated trench bottom will adequately support and not damage the culvert.

PINN Pkg. 198044 5/20 02320-2

a. BD-1: Gradation as follows:

Sieve Size

Percent Passing

No. 4 100

No. 8 55- 85

No. 40 15- 30

b. BD-2: Gradation as follows:

Sieve Size Percent Passing

1/2-inch 100

No. 4 50- 80

No. 40 10- 25

c. BD-3: Gradation as follows:

1-1/2-inch 100

1/2-inch 45- 75

3. Select Backfill (SB): Materials shall be predominantly sand and gravel, having a plasticity index less than 6.

a. SB-1: Gradation as follows:

Sieve Size Percent Passing

No. 4 100

No. 8 55- 85

No. 40 15- 30

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b. SB-2: Gradation as follows:

1/2-inch 100

No. 4 50- 80

c. SB-3: Gradation as follows:

3/4-inch 100

3/8-inch 55- 85

d. SB-4: Gradation as follows:

1-1/2-inch 100

4. Backfill (BF):

a. BF-1: Materials shall be predominantly sand and gravel, having a plasticity index less than 6, and graded as follows:

Sieve Size Percent Passing

1-1/2-inch 100

b. BF-2: Soils that contain no rock larger than 6 inches at greatest dimension. If expansive clays are present, such content shall not exceed one-third of the material by volume and shall be well mixed with noncohesive soils.

B. ASTM D422-63 shall be used for gradation analysis. ASTM D4318-95 shall be used for determination of plasticity index.

C. Furnish required bedding, select backfill, and backfill materials listed under the appropriate types of utility line in the sections to which this work relates.

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3 .1 FIELD QUALITY CONTROL

A. Testing required to determine compliance for the work of this section will be the responsibility of the Contractor, at no additional expense to the Government.

B. ASTM D698-91 shall be used to determine maximum density and ASTM D1556-90 or ASTM D2922-96 shall be used to determine in-place density.

C. The Contractor shall perform at least one test within each backfill material zone (BD, SB, BF) at the following maximum intervals. Testing at more frequent intervals may be required at the discretion of the Contracting Officer:

1. Vehicular Traffic Areas: 50 linear feet of trench.

2. Pedestrian and Lawn Areas: 100 linear feet of trench.

3. Nontraffic Areas: 200 linear feet of trench.

3 .2 TRENCH EXCAVATION

A. Trenching, General: Trench and install new culverts prior to commencing pulverizing and paving work. Excavate the trench to the approximate level of the top of the utility line to be installed, using adequate trench width and side slopes to safely accommodate worker access. Continue excavating for the utility line, to a width not greater than is shown on the appropriate trench detail.

1. Rocky Trench Bottom: Where ledge rock, hard pan, boulders, or sharp-edged materials are encountered, over-excavate a minimum depth of 6 inches below the bottom of the utility exterior wall to permit adequate bedding preparation. The installed utility shall have at least 6 inches of clearance from any rock protrusion.

2. Unstable Trench Bottom: Secure approval of depth of over-excavation and stabilization method. For wet trench construction, use approved method of dewatering through diversion, damming and pumping, well points, or underdrain systems. Dispose of removed fluidized materials as approved. Use BD-3 material to build a suitable foundation to within 6 inches of finished utility grade, prior to bedding with the specified material. Compact layers to 95 percent of maximum density in not greater than 6-inch layers. Do not proceed with utility installation until wet trench and unstable conditions are under control.

B. Paved Areas: Sawcut existing pavement full depth to a true line before excavation, as shown, and maintain the edge suitable for repaving. Pavement removed shall not be used as backfill.

3 .3 SHORING AND SHEETING

A. Construct and maintain all shoring, sheeting, and slope lay-back necessary to protect the excavation, as needed for the safety of the employees and as required by applicable State and Federal laws.

B. For trenches over 5 feet deep, provide suitable barricades for worker protection. When work area is left open and unattended by Contractor, provide suitable barricades for public safety, regardless of trench depth.

PINN Pkg. 198044 5/20 02320-5

C. For trenches over 4 feet deep, provide suitable exit means in accordance with applicable provisions of OSHA.

D. Do not remove timber or sheeting if it is in a compacted zone. Instead, trim it off at a safe level above that zone.

E. As directed, remove all other sheeting and shoring when safe to do so.

3 .4 BACKFILLING

A. Compaction:

1. Use vibratory compactors for sand and gravel (noncohesive soils).

2. Use mechanical tampers for sand and gravel containing a significant portion of fine-grained material, such as silt and clay (cohesive soils).

3. Hand tamp around pipe or cable to protect the lines until adequate cushion is attained.

4. Puddling or water flooding for consolidation of backfill or compaction by wheel rolling with construction equipment will not be permitted.

B. Bedding: Compact the specified material to 95 percent of maximum density, at a moisture content determined to be suitable for such density. Compaction shall be to the finished utility grade.

C. Utility Installation: Shape the trench bottom to ensure uniform contact with the full length of the installed line and remove any sharp-edged materials that might damage the line. Compaction shall be maintained beneath the line.

D. Select Backfill: Fill by hand placement around the utility to just over half depth and compact in a manner to ensure against lateral or vertical displacement. Place select backfill to 12 inches above the utility line by hand placement in not more than 6-inch layers. Compact each layer to 95 percent of maximum density, at a moisture content determined to be suitable for such density.

E. Backfill: Place and compact the specified material as follows:

1. Vehicular Traffic Areas: Fill and compact in 8-inch maximum layers to 95 percent of maximum density, at moisture content determined to be suitable for such density.

2. Pedestrian and Lawn Areas: Fill and compact in 8-inch maximum layers to 90 percent of maximum density, at moisture content determined to be suitable for such density.

3. Nontraffic Areas: Fill and compact in 8-inch maximum layers to 90 percent of maximum density, at moisture content determined to be suitable for such density.

3 .5 SURFACE FINISH WORK

A. Paved Areas: Place and compact 6-inch layer of Aggregate Base Course as surfacing in trench locations. Compact to 95% relative density; fill flush with adjoining paved surfaces.

B. Open and Seeded Areas: Grade all disturbed areas to a finish ordinarily obtained from a blade grader, with no abrupt changes in grade or irregularities that will hold water.

PINN Pkg. 198044 5/20 02320-6

C. Drainage Ditches: Restore drainage ditches to appropriate line and grade, using approved surface erosion prevention techniques.

D. Clean-Up: Prior to final inspection and acceptance, remove all rubbish and excess material for disposal as approved, and leave area in a neat, satisfactory condition.

4 .1 UTILITY TRENCHING AND BACKFILLING

PINN Pkg. 198044 - 5/20 02332-1

WATERING

SECTION 02332

WATERING

A. The work of this section consists of furnishing, hauling, and applying water required for compaction of embankments, backfills, subgrade, and base course, dust control, and other construction operations.

2 .1 WATER

A. Free of debris, organic matter, and other objectionable substances. Contractor may obtain water for use on this project from National Park Service water system hydrants in the Chaparral Parking area at the end of the West Side Road.

3 .1 WATER TRUCK OR WATER TENDER TRAILER

A. At least 250-gallon capacity.

B. Always keep at least one water truck/trailer on site, unless Contracting Officer approves removal of the truck from the site before final completion.

3 .2 APPLICATION

A. Use pressure type distributors or a pipeline equipped with sprinkler system. Provide approved meter devices near points of discharge.

B. Ensure a uniform application of water for optimum moisture content. Avoid excessive runoff and minimize water waste.

C. The Contractor may water excavation areas before excavating. Drill full depth of excavation to make moisture determinations.

D. If overwatering occurs, de-water at no additional expense to the Government.

4 .1 WATERING

PINN Pkg. 198044 - 5/20 02612-1

CULVERTS AND STORM DRAINS

SECTION 02612

DESCRIPTION

A. The work of this section consists of furnishing and installing pipe culverts, and end sections, as well as cleaning existing trench drains, culverts, inlet basins and outlet channels.

SUBMITTALS

B. As specified in Section 01010.

PIPE LENGTH SCHEDULE

C. Before ordering pipe, Contractor shall request a pipe list from the Contracting Officer. The list will reflect exact pipe lengths required, as staked in the field.

1. Corrugated Steel Pipe: Aluminized Steel Type 2, AASHTO M274/ASTM A929, 2-2/3-inch by 1/2-inch corrugations. Minimum thickness, 0.64 inch (16 gauge) aluminized steel.

END SECTIONS, BANDS, AND SPECIAL FITTINGS

B. Material, thickness, and coating shall match pipe to which they are joined.

GRANULAR BACKFILL AND BEDDING MATERIAL

C. Section 02320.

EXCAVATION

A. Section 02320.

LAYING PIPE

B. Begin at downstream end. Lower segment shall be in contact with shaped bedding its full length.

Place bell or groove ends of rigid pipe and outside circumferential laps of flexible pipe facing upstream. Place flexible pipe with longitudinal laps or seams at sides. Place elliptical pipe with major axis within 5 degrees of a vertical plane through the longitudinal axis of pipe.

JOINING PIPE

C. Metal Pipe: Place and align metal pipe sections flush with adjacent section and firmly join with one-piece coupling band.

BACKFILL

D. Section 02320. Do not place backfill until structure has been approved by the Contracting Officer.

Place and compact approximately three linear feet of impermeable soil backfill around the culvert at the inlet to prevent water piping through the permeable bedding and select backfill.

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CLEANING EXISTING DROP INLETS & TRENCH DRAINS

E. Remove old filter fabric, all accumulated sediment and debris from existing trench drains, and two drop inlets alongside maintenance/housing access road to restore free flowing drainage. Haul excavated soil materials to soil stockpile in Jawbone Parking area at end of West Side Road.

PIPE CULVERT

A. Measurement will be the number of linear feet as staked in the field. Branch connections and elbows will be included in the lengths measured and will not be paid for separately. Payment will be made at the contract unit price per linear foot for each size of pipe.

END SECTIONS

B. Payment will be made at the contract unit price for each size end section.

DROP INLET & TRENCH DRAIN CLEANING

C. No separate payment will be made for this work, Payment will be incidental the other Culvert bid items.

PINN Pkg. 198044 – 5/20 02712-1

BITUMINOUS TACK COAT

SECTION 02712

A. The work of this section consists of treating all vertical asphalt or concrete surfaces which will abut new pavements with a tack coat. A prime coat over the aggregate base course is not required.

1 .2 SUBMITTALS

A. As specified in Section 01010.

B. Two copies of manufacturer's certification for each load certifying the bituminous material is of the type, grade, and quality specified.

1 .3 PROJECT CONDITIONS

A. Apply bituminous material only during daylight hours, when surface is dry, temperature is above 60 degrees F, and weather is not foggy or rainy.

2 .1 BITUMINOUS FOG SEAL AND TACK COAT

A. CSS-1 Asphalt Emulsion.

3 .1 GENERAL

A. Protect the surface of sidewalks, curbs, other structures, and trees adjacent to the area being treated from being spattered or marred.

B. Do not clean or discharge distributor within the park boundary.

3 .2 DISTRIBUTOR

A. Bituminous distributor and equipment for heating bituminous material shall be designed, equipped, maintained, and operated so that bituminous material, at even heat, may be applied uniformly on variable widths of surface up to 15 feet at readily determined and controlled rates from 0.05 to 0.10 gallons per square yard, with uniform pressure, and with an allowable variation from any specified rate not to exceed 0.02 gallon per square yard. Distributor equipment shall include a tachometer, pressure gauges, accurate volume measuring devices or a calibrated tank, and a thermometer for measuring temperatures of tank contents. Distributors shall be equipped with a power unit for the pump, and a full circulation spray bar adjustable laterally and vertically.

3 .3 PREPARATION OF SURFACE

PINN Pkg. 198044 – 5/20 02712-2

A. Tack Coat: Complete patching and leveling of the existing surface before applying tack coat.

Immediately before applying tack coat, remove loose material, dirt, clay, or other objectionable material.

3 .4 APPLICATION

A. Tack Coat: Apply tack coat uniformly at the rate of 0.05 to 0.15 gallons per square yard, at specified temperature. Apply within 24 hours preceding placement of the covering course.

4 .1 BITUMINOUS TACK COAT

A. Payment will be included in the Hot Asphalt Concrete Pavement bid item.

PINN Pkg. 198044 - 5/20 02716-1

BITUMINOUS CONCRETE PAVEMENT

SECTION 02716

HOT BITUMINOUS CONCRETE PAVEMENT

A. The work of this section consists of constructing Hot Asphaltic Concrete Pavement composed of a mixture of aggregate, filler if required, and bituminous material, placed on a prepared base.

1 .2 QUALITY ASSURANCE

Testing required to determine compliance with the work of this section will be the responsibility of the Contractor.

See Section 01430. An independent testing laboratory shall be used to sample and test asphalt concrete. One test shall be taken for each paving period and at least one test every four hours. As a minimum, results of the tests shall include items A, B, and C of the job mix formula submittal.

1 .3 SUBMITTALS

A. As specified in Section 01300.

B. Job-Mix Formula: Before producing bituminous mixture, submit a job-mix formula for each mixture to the Contracting Officer for approval. Should a change in source of material be proposed, or should a job-mix formula prove unsatisfactory, submit a new job-mix formula for approval.

1. Each job-mix formula submitted shall propose definite single values for:

a. The percentage of aggregate passing each specified sieve, based on dry weight of aggregate.

b. The percentage of bituminous material to be added based on the total weight of the mixture, and the percentage of any stabilizing agent such as lime, portland cement, or antistrip agent.

c. The percentage of high natural CRM in the total CRM.

2. In addition, the job-mix formula shall provide a mixture having a minimum wet retained strength of 125 psi, as determined by AASHTO T165-82, and an index of retained strength of not less than 70 percent.

C. Certificates:

1. Certification from supplier that asphalt cement is of correct type and meets requirements of this section. Two copies will be required for each load.

2. Two copies of certified weight ticket from supplier for each load of asphalt cement.

3. Two copies of certified weight tickets for each load of bituminous concrete.

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1 .4 PROJECT CONDITIONS

A. Apply mixture only during hours of daylight; when air temperature is 50 degrees F or higher;

when surfaces to be paved are dry and free of frost, snow, or ice; and when precipitation is not imminent.

2 .1 HACP AGGREGATE

A. The aggregate shall meet the general and physical requirements of CalTrans Section 39.

B. The aggregates for the mixture shall be graded and combined in such proportions that the resulting composite blend meets the requirements of the job-mix formula.

2 .2 BITUMINOUS MATERIAL

A. Asphalt cement, meeting requirements of CalTrans Section 39 19-mm (3/4”) aggregate mix. The approximate percent of asphalt cement to be added to the mix shall be 5 to 7 percent based on total weight of mixture. The final percentage will be determined from the job-mix formula for each mixture specified. The asphalt cement used on the project shall be of the same grade and from the same supplier as that used and approved in the job-mix formula.

PART 3 EXECUTION

3 .1 SURFACE PREPARATION

A. Section 2725 Aggregate Base

B. New curb, culverts and concrete waterways must be installed prior to paving.

C. Sawcut all edges of existing asphalt paving the new paving will abut to (as shown on plan details).

D. Apply tack coat as specified in Section 02712.

3 .2 EQUIPMENT

1. Plant, hauling, placing, and rolling equipment shall be adequate to ensure uniformity and continuity of operations and be in good operating condition capable of performing according to manufacturer's specifications.

B. Hauling Equipment: Trucks used for hauling bituminous mixtures shall have tight, clean, smooth metal beds which have been thinly coated with a minimum amount of paraffin oil, lime solution, or other approved material to prevent the mixture from adhering to the beds. Each truck shall have a cover of canvas or other suitable material of such size as to protect the mixture from the weather.

C. Bituminous Pavers:

1. Bituminous pavers shall be self-contained, power-propelled units, provided with an activated screed or strike-off assembly, heated if necessary, and capable of spreading and

PINN Pkg. 198044 - 5/20 02716-3 finishing courses of bituminous plant mix material in widths applicable to the specified typical section and thicknesses shown on the drawings.

2. The paver shall be equipped with a receiving hopper having sufficient capacity for a uniform spreading operation. The hopper shall be equipped with a distribution system to place the mixture uniformly in front of the screed.

3. The paving machine shall be equipped with an automatic control system which will control the elevation of the screed and which is automatically actuated by a system of sensor-operated devices which sense and follow reference lines or surfaces on one or both sides of the machine as required.

4. Maintain screed at the proper elevation at each end by controlling the elevation of one end and automatically controlling the transverse slope or by controlling the elevation of each end independently, as directed.

5. The automatic control system shall be capable of working with one of the following devices: ski-type device at least 30 feet in length; short ski or short shoe; at least 5,000 feet of control line and stakes.

6. When the control line is to be used, it shall be maintained taut and to the grade and alignment established.

7. The screed or strike-off assembly shall effectively produce a finished surface of the required evenness and texture without tearing, shoving or gouging the mixture. The paver shall be capable of being operated at forward speeds consistent with satisfactory laying of the mixture.

D. Rollers:

1. Rollers shall be of the steel-wheel, vibratory, pneumatic tire type, or combination, capable of reversing without backlash. Steel-wheel rollers other than vibrating shall be capable of exerting a force of not less than 250 pounds per inch of width of the roller. Vibrating steel-wheel rollers shall have a minimum weight of 6 tons.

2. Pneumatic-tired rollers shall have smooth tread tires of equal size that will provide a uniform compaction pressure for the full width of the roller and shall be capable of exerting a ground pressure of at least 80 pounds per square inch.

3 .3 APPLICATION

A. Conditioning of Existing Surface:

1. When the surface of the existing pavement or old base is irregular, it shall be brought to uniform grade and cross section as directed.

2. Paint contact surfaces of curbing, gutters, manholes, and other structures with a thin, uniform coating of bituminous material before placing the bituminous mixture against them.

B. Preparation of Bituminous Material: Provide a continuous supply of the bituminous material to the mixer at a uniform temperature at all times; avoid local overheating.

C. Preparation of Aggregates:

PINN Pkg. 198044 - 5/20 02716-4

1. Aggregates for pugmill mixtures shall be dried and heated to the required temperature.

Properly adjust flame to avoid damage to the aggregate and to avoid soot on the aggregate.

2. Untreated aggregates for dryer-drum mixtures will not require prior preparation other than gradation control, except that those containing gravitational water shall be stockpiled and allowed to drain prior to mixing. Moisture in final mixture shall be limited to 3 percent maximum.

3 .4 MIXING

A. Combine aggregates in the mixer in the amount of each fraction of aggregates required to meet the job-mix formula.