A06_SOW_Specs_La_Posa_Roadway_FY22_1.docx

Standard Specifications for Construction

FP-14

La Posa LTVA Sites Road Repaving

FY22

Yuma Field Office Bureau of Land Management Arizona

TABLE OF CONTENTS

DIVISION 100 GENERAL REQUIREMENTS

Section 103. — SCOPE OF WORK Section 106. — ACCEPTANCE OF WORK

DIVISION 150 PROJECT REQUIREMENTS

Section 151. — MOBILIZATION Section 152. — CONSTRUCTION SURVEY AND STAKING Section 154. — CONTRACTOR SAMPLING AND TESTING Section 155. — SCHEDULES FOR CONSTRUCTION CONTRACTS Section 156. — PUBLIC TRAFFIC Section 158. — WATERING FOR DUST CONTROL

DIVISION 200 EARTHWORK

Section 212. — LINEAR GRADING

DIVISION 300 AGGREGATE AND BASE COURSES

Section 304. — FULL DEPTH RECLAMATION

DIVISION 400 ASPHALT PAVEMENTS AND SURFACE TREATMENTS

Section 406. — FOG SEAL Section 407. — CHIP SEAL

DIVISION 600 INCIDENTAL CONSTRUCTION

Section 633. — PERMANENT TRAFFIC CONTROL Section 634. — PERMANENT PAVEMENT MARKINGS Section 635. — TEMPORARY TRAFFIC CONTROL

DIVISION 700 MATERIAL

Section 702. — ASPHALT MATERIAL Section 703. — AGGREGATE Section 718. — TRAFFIC SIGNING AND MARKING MATERIAL Section 725. — MISCELLANEOUS MATERIAL

SECTION 321126 CRUSHED AGGREGATE BASE COURSE FOR HOT-MIX ASPHALT

SECTION 321216 HOT-MIX ASPHALT

DIVISION 100 GENERAL REQUIREMENTS

Section 103. — SCOPE OF WORK

103.01 Intent of Contract. The intent of the contract is to provide for the construction and completion of the work described. The precise details of performing the work are not described, except as considered essential for the successful completion of the work. Furnish labor, material, equipment, tools, transportation, and supplies necessary to complete the work according to the contract.

Work Covered By Contract Documents Project Identification: La Posa Repaving/Road Work Project Location: Project is located approximately 5 miles south of Quartzsite, AZ.

In paragraph and first subparagraph below, include an abbreviated summary of the Work for Project described above. See Evaluations.

The Work consists of the following: This proposed project includes road and pavement rehabilitation of La Posa Long Term Visitor Area site Roads. La Posa LTVA North, South, and West. The project consists of rehabilitation of approx. 38,924 sy of 3 La Posa LTVA site roads, Quartzsite, Arizona. The road construction includes but is not limited to 6 –inch pulverizing of existing pavement inplace, finish grading and compaction. Asphalt chip seal paving is the application of a Type 2B double chip seal (1st layer penetrating asphalt chip, 2nd layer nominal asphalt chip) with uncoated chips, a final fog seal and roadway markings. All patch work on first chipseal layer, if needed, must be completed and approved by COR or PI before starting second chipseal layer. Existing roadway is a double chip seal road. Survey and staking as well as compaction testing and sampling all materials is required and contractor’s responsibility to engage third party testing agency. Survey and staking to ensure all 38,924 sy of double chip seal are completed, ensure a cross slope of 2%-5% is achieved, and ensure proper drainage of roadway is provided. Contractor to submit traffic control plan and get any/all required permits from ADOT and/or any other agency required to complete project and to ensure proper signage is posted on U.S. Route 95. Existing site roads are 24 feet wide. Existing enterances varies at each site. La Posa West entrance width is 35 feet from U.S. Route 95 to visitor center.

Contractor to provide submittals for all products used. Existing low flow crossings and cattle guards are to remain. Double chip seal will go to low flow crossings and cattle guards, then pick up on other side of low flow crossings and cattle guards.

Oils to be used for double chip seal placement are CRS-2P penetration for first layer and CRS-2hP penetration for second layer.

Striping consists of 2 yellow lines from U.S. Route 95 to visitor center, White stop bar at stop sign near U.S. Route 95, and yellow cross walk at visitor center for all 3 sites. Contractor to replace speed bumps and delineator rods in middle of road at all 3 sites with new. (La Posa West: 1 Speed bump. La Posa North: 2 sets of speed bumps. La Posa South: 1 speed bump at visitor center and 1 speed bump near dump station. Speed bumps to be width of road at location sites which is 24 feet wide at La Posa North and South, 35 feet wide at La Posa West. Contractor to survey speed bumps to ensure same layout will remain. Speed bump to have reflector material or high visible color.

Delineator rods to be placed in middle of road starting at visitor center and going towards U.S. Route 95. Rods to extend 100 feet and spaced 10 feet apart. Delineator rods to be ground mounted. Delineator rods to be flexible and have reflector tape. Top of delineator rods to be 3 feet above top of road way. Contractor to survey rods to ensure same layout will remain.

This project will include road improvements for the La Posa LTVA North, West, and South sites. Marked areas (see google earth image) will need new aggregate placed, parking lot/site roads graded, and achieve 95% compaction with proper slopes to ensure drainage is adequate. Aggregate to be ABC surface base course. Area is approximately 15,293 SY and needs approximately 500 tons of base course.

Hot-mix asphalt to be placed at entrance to all 3 sites off of U.S. Route 95. Approximately 970 sy total. Asphalt to be a depth of 4”. Asphalt to extend 50 feet from U.S. Route 95 to connect to new chip seal as part of this project and follow existing layout. Contractor to survey area to ensure layout will remain with new asphalt. Asphalt to have no voids/aggregate popping out and sealed on top. Crack seal where new hot-mix asphalt meets U.S. Route 95 and new chip seal.

La Posa West – approximately 5,615 sy of total chip seal (Road 1,169 feet at 24’ wide/242 feet at 35’ wide , parking lot (approximately 1,200 sy) and end of road ;see google earth image (approximately 357 sy), approximately 322 sy of hot mix asphalt (4” depth), approximately 4,497 sy of gravel to be graded/compacted with new gravel placed at section loss spots.

La Posa North – approximately 11,120 sy of total chip seal (Road 3,679 feet at 24’ wide and parking lot (approximately 1,200 sy), ) and end of road ;see google earth image (approximately 110 sy) approximately 305 sy of hot mix asphalt (4” depth), approximately 3,319 sy of gravel to be graded/compacted with new gravel placed at section loss spots.

La Posa South – approximately 22,189 sy of total chip seal (Road 7,871 feet at 24’ wide and parking lot approximately 1,200 sy), approximately 335 sy of hot mix asphalt (4” depth), approximately 7,477 sy of gravel to be graded/compacted with new gravel placed at section loss spots.

103.03 Location of Project

La Posa North Lat/Long: 33.65142 -114.21620 La Posa West Lat/Long: 33.65218 -114.21820 La Posa South Lat/Long: 33.62520 -114.21572

103.04 Performance of the Work

All work shall be conducted in a safe and expedient manner and in conformance with the specifications referenced in the Task Order. When applicable, traffic control shall be in accordance with standards set forth in the most current edition of the Manual on Uniform Traffic Control Devices (MUTCD). All work shall be conducted by personnel fully qualified to perform the tasks assigned and shall be supervised by a designated Contractor’s Representative. A pre- work meeting will be conducted for each task order to agree upon limits of work and methods.

Section 106. — ACCEPTANCE OF WORK

106.01 Conformity with Contract Requirements. References to standard documents and test methods of AASHTO, ASTM, GSA, and other recognized standard authorities refer to the documents and methods in effect on the date of the Invitation for Bids (IFB) or Request for Proposal (RFP).

Specification limits, tolerances, test results, and related calculations are according to ASTM E29, Absolute Method.

Perform work to the lines, grades, cross-sections, dimensions, and processes or material requirements shown in the contract.

Incorporate manufactured material into the work according to the manufacturer’s recommendations or to these specifications, whichever is stricter.

When standard manufactured items are specified (such as fence, wire, plates, rolled shapes, and pipe conduits that are identified by gauge, density, or section dimensions) the identification will be considered to be nominal masses or dimensions. Unless specific contract tolerances are noted, established manufacturing tolerances will be accepted.

Plan dimensions and contract specification values are the values to be strived for and complied with as the design values from which deviations are allowed. Perform work and provide material that is uniform in character and reasonably close to the prescribed value or within the specified tolerance range. The purpose of a tolerance range is to accommodate occasional minor variations from the median zone that are unavoidable for practical reasons.

The Government may inspect, sample, or test work before final acceptance of the project. If the Government tests work, copies of test reports are furnished to the Contractor upon request. Government tests may or may not be performed at the work site.

If Government testing is performed on work, the result will be used for acceptance purposes under Subsection 106.04.

Do not rely on the availability of Government test results for process control.

The primary method of acceptance is specified in each Section of work, but work may be rejected if it is found not to comply with the contract.

Remove and replace work that does not conform to the contract, or to prevailing industry standards where no specific contract requirements are noted, at no cost to the Government.

106.02 Visual Inspection. Acceptance is based on visual inspection of the work for compliance with the contract and prevailing industry standards.

106.03 Certification. For material manufactured off-site, use a manufacturer with an effective testing and inspection system. Require the manufacturer to clearly mark the material or packaging with a unique product identification or specification standard to which it is produced.

When these Standard Specifications or Special Contract Requirements reference certifications, certificates or certified documents, equipment or individuals; these references refer to documentation of non-regulatory, peripheral contract requirements that are required to be validated by an individual or organization having unique knowledge or qualifications to perform such validation.

Check certifications before incorporating the material into the work to ensure that the requirements of the contract have been met. Mark the certifications with the following information:

· Project number and name;

· Pay item number and description;

· Contractor’s signature; and

· Date.

Material accepted by certification may be sampled and tested. If material is determined not to conform with the contract, the material will be rejected whether in place or not.

One of the following certifications may be required:

(a) Production certification. Material requiring a production certification is identified in the Acceptance Subsection of each Section. Submit a production certification from the manufacturer for each shipment of material. Include the following:

(1) Date and place of manufacture;

(2) Lot number or other means of cross-referencing to the manufacturer’s inspection and testing system; and

(3) Substantiating evidence that the material conforms to the contract quality requirements as required, including the following:

(a) Test results on material from the same lot and documentation of the inspection and testing system;

(b) A statement from the manufacturer that the material complies with the contract; and

(c) Manufacturer’s signature or other means of demonstrating accountability for the certification.

(b) Commercial certification. Submit one commercial certification for similar material from the same manufacturer.

A commercial certification is a manufacturer’s or Contractor's representation that the material complies with the contract. The representation may be labels, catalog data, stamped specification standards, or supplier's certifications indicating the material is produced to a commercial standard or specification.

106.04 Measured or Tested Conformance. Perform necessary measurements and tests to ensure work complies with the contract.

Use prevailing industry standards in the absence of contract requirements or tolerances.

Submit measurements, tests, and supporting data for acceptance.

106.05 Inspection at the Plant. Work may be inspected at the point of production or fabrication. Manufacturing plants may be inspected for compliance with specified manufacturing methods. Material samples may be obtained for laboratory testing for compliance with quality requirements. Allow full entry at all times to the parts of the plant producing the work.

106.06 Partial and Final Acceptance. Maintain the work during construction and until the project is accepted. Repair damage caused by the Contractor before final acceptance of the entire project at no cost to the Government.

(a) Partial acceptance. When a segment of the project is completed, a final inspection of that segment may be requested. If the segment is complete and in compliance, it may be accepted. If accepted, the government may relieve the Contractor of further responsibility for maintaining accepted work.

When public traffic is accommodated through construction and begins using sections of roadway as they are completed, continue maintenance of such sections until final acceptance.

(b) Final acceptance. Notify the government when the entire project is complete to schedule an inspection. If work is determined to be complete, the inspection will constitute the final inspection. The Contractor will be notified in writing of final acceptance as of the date of the final inspection. Final acceptance relieves the Contractor of further responsibility for the maintenance of the project.

If the inspection discloses unsatisfactory work, the government will provide to the Contractor a list of the work that is incomplete or requires correction. Immediately complete or correct the work. Submit notification when the work has been completed as provided above.

DIVISION 150

PROJECT

REQUIREMENTS

Section 151. — MOBILIZATION Description

151.01 This work consists of moving personnel, equipment, material, and incidentals to the project and performing work necessary before beginning work at the project site. This work also includes obtaining permits, insurance, and bonds.

Section 151 Section 151

Section 152. — CONSTRUCTION SURVEY AND STAKING Description

152.01 This work consists of performing surveying, staking, calculating, and recording data for the control of work.

Construction Requirements

152.02 Qualifications. Provide technically qualified survey crews experienced in highway construction survey and staking. Provide personnel capable of performing in a timely and accurate manner.

152.03 Submittals. Section Deleted

152.04 General. Conform to the following:

(a) Personnel. Provide a crew supervisor on the project whenever surveying and staking is in progress.

(b) Equipment. Furnish survey instruments and supporting equipment capable of achieving the specified tolerances.

Construction equipment controlled with a Global Positioning System (GPS) and Robotic Total Station (RTS) machine guidance system may be used in the construction of subgrade, subbase, and base aggregate courses, or other construction operations when approved.

(c) Material. Furnish acceptable tools and supplies of the type and quality suitable for highway survey work. Furnish stakes and hubs of sufficient length to provide a solid set in the ground with sufficient surface area above ground for necessary legible and durable markings.

Survey and stake to ensure roadway cross slope of 2%-5%. Ensure proper drainage is provided. Ensure all 38,924 sy of double chip seal are completed.

Include staking activities in the construction schedule required under Section 155. Include the dates and sequence of each staking activity.

Record survey and measurement field data in an approved format. Submit as-staked data and corrections made to the Government-furnished survey data. Submit survey and measurement data at least weekly. Field data and supporting documentation become the property of the Government upon completion of the work.

Discuss and coordinate the following with the government before surveying or staking:

(1) Surveying and staking methods;

(2) Stake marking;

(3) Grade control for courses of material;

(4) Referencing;

(5) Structure control;

(6) Field staking data;

(7) Localization of the GPS systems to the Government-established control points; and

(8) Other procedures and controls necessary for the work.

Acceptance of the construction staking does not relieve the Contractor of responsibility for correcting errors discovered during the work and for bearing additional costs associated with the error.

Maintain legibility of stake markings for the duration of the project or until notified in writing the stakes are no longer needed. Replace stakes if necessary to ensure markings are maintained.

Remove and dispose of flagging, paint, lath, stakes, and other staking material after the project is complete.

152.05 Survey and Staking Requirements. Perform survey, staking, recording of data, and calculations as necessary to construct the project from the initial layout to final completion.

(a) Control points. Relocate initial horizontal and vertical control points in conflict with construction to areas that will not be disturbed by construction operations. Furnish the coordinates, elevations, and supporting documentation for the relocated points before the initial points are disturbed. Set durable monuments for survey control that uniquely identify the points.

Furnish the GPS localization results at least 7 days before beginning construction layout survey work. The government may order the GPS localization calibration and associated 3D model to be broken into two or more zones to maintain the localized relationship between control points and original ground.

(b) Centerline establishment. Establish or reestablish centerline at roadway design cross-section locations and as necessary to construct the work. Reestablish the centerline when construction survey and staking work does not meet the tolerances.

(c) Original ground topographic verification; section deleted .(d) Slope and references stakes. Perform the following:

(1) AMG method. Section deleted

(2) Conventional survey methods. Verify and set slope stakes on both sides of centerline at the theoretical catch point. If the theoretical catch point is not within a tolerance of 0.5 feet (150 millimeters), perform original ground topographic verification according to Subsection 152.05(c). Set the slope stake at the actual intersection of the design roadway slope with the natural ground-line. Set reference stakes outside the clearing limits. Include reference points and slope-stake information on the reference stakes.

Establish slope stakes in the field as the actual point of intersection of the design roadway slope with the natural ground-line when theoretical catch point information is not available.

(e) Clearing and grubbing limits. Set clearing and grubbing limits on both sides of centerline based on the actual slope-stake locations.

(f) Grade-finishing stakes.

(1) AMG method. Section deleted

(2) Conventional survey methods. Set grade-finishing stakes for grade elevations and horizontal alignment, on centerline and on each shoulder at design roadway cross-section locations. Set stakes at the top of subgrade and the top of each aggregate course. Reset grade finishing stakes as many times as necessary to construct the subgrade and each aggregate course.

During turnout or pullout construction, set stakes on the centerline, on each normal shoulder, and on the shoulder of the turnout. In parking areas, set stakes at the center and along the edges of the parking area. Set stakes in ditches to be paved.

When the centerline curve radius is less than or equal to 250 feet (75 meters), use a maximum longitudinal spacing between stakes of 25 feet (8 meters). When the centerline curve radius is greater than 250 feet (75 meters), use a maximum longitudinal spacing between stakes of 50 feet (15 meters). Use a maximum transverse spacing between stakes of 20 feet (6 meters). Use brushes or guard stakes at each stake.

(l) Miscellaneous survey and staking. Survey and stake other work (such as guardrail, curb and gutter, turf establishment, utilities, and excavation limits for structures) to the proper location and required tolerances. Propose staking increments for approval by the government when not specified.

Section 152 Section 152

Section 154. — CONTRACTOR SAMPLING AND TESTING Description

154.01 This work consists of obtaining samples for testing.

When there is a pay item for Contractor testing included in the bid schedule, this work also includes sampling, testing and reporting the required test results.

Construction Requirements

154.02 General.

Sample and test material according to the Sampling, Testing, and Acceptance Requirements tables included at the end of each Section. Perform additional sampling and testing as directed when material does not meet requirements.

Provide the government the opportunity to witness sampling, splitting, and testing of material.

Where process control sampling and testing frequencies are identical to the sampling and testing frequencies for acceptance, the process control samples may be used for acceptance for the applicable work.

154.03 Sampling. Sample and split samples according to AASHTO or other acceptable procedures. The location of statistical acceptance sampling will be provided using a random number system. Perform splits when required and deliver the Government’s portion of the sample or split sample in an acceptable container suitable for shipment. Label samples with the following:

(a) Project number and name;

(b) Pay item number and description;

(c) Source of material;

(d) Sample number;

(e) Date sampled;

(f) Time sampled;

(g) Location sample taken;

(h) Name of person sampling;

(i) Name of person witnessing sampling; and

(j) Type of test required on sample.

154.04 Testing. Perform tests when there is a pay item for Contractor testing included in the bid schedule. Demonstration of testing competence may be required.

154.05 Records. When tests are on material being incorporated in the work, report test results within 24 hours unless specified otherwise in the Sampling, Testing, and Acceptance Requirements tables. Report test results on forms containing sample information required by Subsection 154.03. Label interim measurements used to determine the results. Attach work sheets used to determine test values to the test result forms.

Section 154 Section 154

Section 155. — SCHEDULES FOR CONSTRUCTION CONTRACTS Description

155.01 This work consists of scheduling and monitoring the progress of construction activities.

155.02 Definitions.

(a) Construction schedule. A progress time-scaled logic diagram, tabular schedule, and submittal list.

(b) Preliminary construction schedule. A schedule diagram of contract activities for the first 60 days after the effective date issued in the Notice to Proceed. A schedule diagram consists of a Critical Path Method (CPM).

(c) Initial construction schedule. The first approved CPM construction schedule submitted after the preliminary construction schedule. Once approved the initial construction schedule becomes the first baseline construction schedule.

(d) Baseline construction schedule. The current approved initial construction schedule in which subsequent construction schedule updates are based on.

(e) Baseline construction schedule update. The normal monthly updating of the currently approved baseline schedule with no changes in the schedule logic or activities and no changes to the critical path.

(f) Baseline construction schedule revision. A significant change to the schedule logic, schedule activities or activity durations, or some other modification to the schedule of planned work. Activities performed out of sequence from the baseline schedule affecting the critical path require a revision. A baseline schedule revision may show construction being completed at a date other than the contract completion date.

Construction Requirements

155.03 General.

Designate an individual in the Contractor's organization who will be the authorized representative responsible for the construction schedule. Identify the representative before or at the preconstruction conference.

When preparing schedules, show completion of work within the contract time.

155.04 Preliminary Construction Schedule. Do not begin work, except mobilization, and traffic control without an approved preliminary construction schedule.

Submit 2 copies of a preliminary construction schedule at least 7 days before the preconstruction conference. Within 7 days after the preconstruction conference, the preliminary construction schedule will be approved or rejected. If rejected, submit a revised schedule within 3 days.

The preconstruction conference will be rescheduled if the government does not receive the schedule 7 days before the scheduled preconstruction conference date. Contract time will not be extended for failure to submit a preliminary construction schedule by the date required.

155.05 Initial and Baseline Construction Schedule. Prepare and submit initial construction schedule unless otherwise required by the contract.

(a) Critical Path Method (CPM). Prepare an initial construction schedule using a CPM that is computer-generated. Submit an initial construction schedule that includes all activities, contractual requirements (such as construction or traffic staging), contract restrictions, and subcontract work.

(1) Format. Prepare a construction schedule diagram and supporting documents as follows:

(a) A title page or header block for each component (time-scaled logic diagram, tabular schedule, written narrative, and submittal list) with the contract number, project number, project name, Contractor name, current fixed completion date, date of submittal, and submittal number.

(b) A schedule diagram using the activity-on-arrow diagram method (ADM) or the precedence diagram method (PDM). Depict the order and interdependence of all activities and the sequence of the work that will be accomplished by the Contractor in coordination with its subcontractors. Show how the completion of predecessor activities restricts the start of successor activities.

(2) Time-scaled logic diagram.

(a) Show all activities including those in the preliminary construction schedule. Add items for correcting punch-list items, and general cleanup. Relate an activity or groups of activities to the contract pay items;

(b) Show all activity nodes or boxes, activity IDs, activity descriptions, and durations;

(c) Group the activities independently by area (that is separate distinct bridges or roadways) and by type of work (such as submittals, utilities, roadway, and bridge);

(d) Include a description of the work represented by each activity at or near the event node or box for each activity;

(e) Code each subcontractor’s activities so that its activities can be shown separately as well as cumulatively;

(f) Show durations for construction activities as whole working days, with a maximum duration of 30 working days each. Divide activities with longer durations into subgroups of activities not exceeding 30 working days in duration. Indicate logical start and end points (such as stationing and staging) for each subgroup;

(g) Show the durations of non-construction activities. Non-construction activities include mobilization, drawing and sample submittals by pay item number, and the fabrication and delivery of key material. Non-construction activities may have durations exceeding 30 working days consistent with the contract. Indicate intended submittal dates and delivery dates for fabrication and delivery activities. Allow for review, approval, and distribution of each submittal or resubmittal. Where no times are specified, allow 14 days for the review, approval, and distribution of each submittal or resubmittal after receipt by the government;

(h) Indicate the total number of anticipated working days to complete each activity of work;

(i) Identify the critical path on the diagram; and

(j) Begin the construction schedule diagram with the date of the Notice to Proceed and include the contract completion date. Float time within the construction schedule is not for use or benefit of either party, but is a jointly owned project resource available to both parties as needed to meet the completion date established in the contract.

(3) Submittal list.

(a) Submit a list of drawings and other submittals by pay item number required for the entire contract period.

(b) Include the following information for each submittal:

(1) Pay item number and description;

(2) Related activity ID number and description from the CPM;

(3) Planned date of initial submittal;

(4) Planned date of government initial response; and

(5) Other comments.

(b) Submission and approval Submit 2 paper copies and one electronic copy of the initial construction schedule within 14 days after the effective date of the Notice to Proceed has been issued. Submit an electronic copy via media approved by the government. In case of discrepancy between the paper version and the electronic version, the paper version will govern over the electronic version of the schedule.

Allow 14 days for the approval or rejection of the schedule. If rejected, submit corrected schedule within 7 days after the date of the rejection of the schedule. If rejected, schedule a meeting within 3 days to discuss corrections.

The approved copy of the initial construction schedule with supporting documents becomes baseline construction schedule. Implement and execute the work under the contract according to the baseline construction schedule. Update the baseline construction schedule according to Subsection 155.06.

Failure to include elements of work in the construction schedule diagram that are required for performance of the contract, even when approved by the Government, will not excuse the Contractor from completing the work required by the contract completion date.

155.06 Baseline Schedule Update. Submit a baseline construction schedule update no less than 7 days before the closing date for the progress estimate or every 30 days, whichever is less. Show completion of work within the contract time.

Unless previously approval by the government, changes to the construction schedule for work that is still to be completed, can only be changed with a Time Impact Analysis according to Subsection 108.03, and a Baseline Construction Schedule revision according to Subsection 155.08. Receipt of a baseline construction schedule update with negative float does not constitute agreement by the Government of the revised completion date.

(c) Critical Path Method updates. Submit 2 paper copies and one electronic copy of the construction schedule update. Provide an electronic copy via media approved by the government. In case of discrepancy between the paper version and the electronic version, the paper version will govern over the electronic version of the schedule.

(1) Tabular schedule:

(a) Actual finish dates for completed activities;

(b) Remaining duration required to complete each activity started, or scheduled to start, but not completed;

(c) Float remaining for each activity;

(d) Percentages for completed and partially completed activities; and

(e) Additional tabular schedules using different sort parameters when requested by the government.

(2) Updated time-scaled logic diagram.

(d) Review and approval of a construction schedule update. The government will review and approve the baseline construction schedule update within 7 days or return it for corrections. The approved baseline construction schedule revision will become the new baseline construction schedule.

155.07 Baseline Schedule Revision. Submit a time impact analysis when requesting approval of a baseline schedule revision. Submitting a proposed baseline schedule revision is not considered a notification of delay or of other basis for change. Continue to submit monthly schedule updates according to Subsection 155.08 until a baseline construction schedule revision is approved.

(a) Time impact analysis. Perform a time impact analysis within 20 days of impacts caused by:

(1) Changes in the resource loading, durations, specifications, subcontractors;

(2) Addition or deletion of work;

(3) Increased or decreased quantities;

(4) Defective work;

(5) Acceleration of the work; or

(6) Other changes.

(b) Bar Chart Method revisions. Submit a bar chart according to Subsection 155.05(a) which includes revised construction activities affected by impacts addressed with a time impact analysis. Include a revised completion date for the total work.

(c) Critical Path Method revisions. Submit a tabular schedule and time-scaled logic diagram according to Subsection 155.05(b) which includes revised construction activities affected by impacts addressed with a time impact analysis. Include a revised critical path and completion date for the total work.

Section 155 Section 155

Section 156. — PUBLIC TRAFFIC Description

156.01 This work consists of controlling and protecting public traffic adjacent to and within the project. See FAR Clause 52.236-13 Accident Prevention.

Material

156.02 Conform to the following Section:

Temporary traffic control 635 Construction Requirements

156.03 Qualifications. Provide a traffic control supervisor certified by a state department of transportation, ATSSA, or other acceptable certification programs.

156.04 Accommodating Traffic During Work. Accommodate traffic according to the MUTCD, contract traffic control plan, Section 635, and this Section.

Perform work in a manner that ensures the safety and convenience of the public and protects the residents and property adjacent to the project. Accommodate public traffic on roads adjacent to and within the project until the project is accepted according to Subsection 106.07(b).

156.05 Maintaining Roadways During Work. Maintain roadways as follows:

(a) Construct and remove diversion roads and bridges as required by the traffic control plan;

(b) Maintain intersections with trails, roads, streets, businesses, parking lots, residences, garages, farms, and other features;

(c) Snow removal to facilitate the work is the Contractor’s responsibility. Snow removal to provide public access is the responsibility of the maintaining agency and will be performed at the maintaining agency’s discretion. Allow the maintaining agency access to perform snow removal;

(d) Maintain a dust-free traveled way such that visibility and air quality are not affected and a hazardous condition is not created;

(e) Remove accumulations of soil and other material from traveled way;

(f) Do not allow water to pond on the traveled way; and

(g) Maintain the roadway, detours, and diversions in a safe and acceptable condition.

If corrective action is requested and the corrective action is not taken immediately, the condition may be corrected and the cost of the corrective action deducted from monies due the Contractor.

156.06 Maintaining Roadways During Non-Work Periods. Maintain roadways and traffic control for public traffic during periods when work is not in progress.

156.07 Limitations on Construction Operations. When the roadway is open to public traffic, restrict operations as follows:

(a) Operate equipment in the direction of traffic, where practical;

(b) For shoulder drop-offs of 3 inches (75 millimeters) or less, provide "Low Shoulder" warning signs. For shoulder drop-offs in excess of 3 inches (75 millimeters), provide a 1V:3H fillet with "Shoulder Drop-Off" warning signs. Complete the construction of shoulders adjacent to traffic lanes to the same elevation within 14 days;

(c) Provide minimum lane widths of 10 feet (3 meters). Use barricades, drums, or other acceptable devices to delineate traffic lanes through areas where the edge of pavement or intended path has been obliterated by construction operations;

(d) Locate staging areas at least 30 feet (9 meters) from the traveled way or behind acceptable traffic barriers. Obtain approval of the location and access to staging areas. Store unused traffic control devices at staging areas;

(e) Park equipment at least 30 feet (9 meters) from the traveled way or behind acceptable traffic barriers;

(f) Provide parking areas for employee’s personal vehicles in approved areas;

(g) Provide uninterrupted two-way communications between flaggers and also between flaggers and pilot cars unless flaggers are able to see each other and communicate. Use communications devices approved by the government. Citizen band radios are unacceptable. Make communication devices available to the government as necessary;

(h) Where switching traffic to a completed lane, provide adequate personnel and equipment to set or relocate traffic control devices;

(i) Limit construction-caused delays to public traffic to a maximum of 30 minutes per passage through the project; and

(j) Maintain existing guardrails, barriers, and bridge railings until removal is necessary for construction. Use a temporary barrier or appropriate channelizing devices while the guardrails and bridge rails are absent. Install permanent barriers, guardrails, and bridge rails as soon as possible to minimize risk to the public.

156.08 Nighttime Operations. Perform construction operations during the hours of daylight (one-half hour after sunrise to one-half hour before sunset).

156.09 Traffic Control Supervisor. Provide a traffic control supervisor according to Subsection 156.03. Do not designate the superintendent as the traffic control supervisor. Furnish the traffic control supervisor's name, address, and 24-hour telephone numbers at the preconstruction conference. During the contract, including periods of suspensions and work stoppages, perform the following:

(a) Implement the traffic control plan.

(b) Coordinate traffic control operations, including those of subcontractors and suppliers.

(c) Ensure the condition, position, and applicability of traffic control devices in use.

(d) Immediately correct traffic control deficiencies.

(e) Coordinate traffic control maintenance operations with the government.

(f) Coordinate and ensure that traffic control devices are furnished, installed, maintained, removed, stored, replaced, relocated and cleaned according to Subsection 635.04. Ensure unused traffic control devices are properly handled and stored.

(g) Conduct weekly traffic safety meetings for construction workers, and invite the government to these weekly meetings.

(h) Submit a weekly certification that inspections and reviews were conducted and that the traffic control devices meet contract requirements. Include the number and types of devices in use. Report with the weekly certification, changes or corrective actions taken to ensure the safe passage of public traffic through the project.

(i) Inspect traffic control devices, including those in staging, storage, material sources, and disposal areas, as follows:

(1) Daily during daylight hours when daylight work is being performed;

(2) Daily during hours of darkness when nighttime work is being performed;

(3) Weekly during:

(a) Daylight hours and hours of darkness when work is suspended for periods of more than one week, except when the project has been shut down for the winter; and

(b) Periods of winter suspension, inspect only as requested by the government.

(4) Additional inspections, day or night, as directed by the government; and

(5) Submit reports of inspections in an acceptable format within 2 days.

(j) Before winter suspension, conduct an inspection of the project with the government to ensure proper provisions are made for winter travel during the period of suspension.

(k) Provide temporary flagging assistance.

Section 156 Section 156

Section 158. — WATERING FOR DUST CONTROL Description

158.01 This work consists of furnishing and applying water for the control of dust caused by the work and public travel.

Material

158.02 Conform to the following Subsection:

Water 725.01(c) Construction Requirements

158.03 General. Provide an adequate water supply and apply water uniformly across the traveled way as necessary to control dust. Uniformly apply water using pressure-type distributors, pipelines equipped with spray systems, or hoses with nozzles.

(a) Project dust control for public benefit. Control dust within the construction limits as necessary including nights, weekends, and periods of non-work when the project is open to public traffic. When the project is not open to public traffic, control dust in areas of the project that have adjacent residences or businesses. Control dust on approved, active detours established for the project. Apply water at the locations, rates, and frequencies as ordered.

(b) Other dust control. Control dust on active haul roads, in pits and staging areas, and on the project during periods not covered in Subsection 158.03(a).

DIVISION 200 EARTHWORK

Section 212. — LINEAR GRADING

Description

212.01 This work consists of constructing roadbeds within the specified alignment and grade tolerances.

Construction Requirements

212.02 Roadway Preparation. Clear the area of vegetation and obstructions according to Sections 201 and 203.

212.03 Roadway Excavation and Embankment. Construct the roadbeds according to the applicable requirements of Section 204, except as modified herein.

Adjust the moisture content of embankment material to a moisture content suitable for compaction. Place embankment material in 12-inch (300-millimeter) layers and compact each layer according to Subsection 204.11(a). Where compacting with rollers is not practical, use approved mechanical or vibratory compaction equipment.

Construct approach connections to existing roads, parking areas, and trails. Construct new approaches.

Compact to 95% of maximum density.

212.04 Grading Tolerance. Do not encroach on stream channels, impact wetlands, or extend beyond right-of-way or easement limits. Do not make alignment or profile grade adjustments that adversely affect drainage. Construct the roadbed within the following grading tolerances:

(a) Alignment (centerline). Alignment may be shifted a maximum of 10 feet (3 meters) left or right of the planned centerline. Curve radii may be reduced by up to 50 percent. Do not construct curves with radii less than 100 feet (30 meters). Compound curves are permitted.

(b) Profile grade. Profile grade may be shifted a maximum of 5 feet (1.5 meters) up or down from the plan elevation provided the new grade tangent does not vary more than 2 percent from the plan grade tangent. Connect revised forward and back grade tangents with a uniform vertical curve consistent with the design.

212.05 Acceptance. Linear grading will be evaluated under Subsections 106.02 and 106.04. Clearing and removal of obstructions will be evaluated under Sections 201 and 203.

Measurement

212.06 Measure the Section 212 pay items listed in the bid schedule according to Subsection 109.02 and the following as applicable.

Do not measure changes in the clearing and grubbing quantity caused by alignment adjustments under Subsection 212.04.

Section 212

Section 212

Payment

212.07 The accepted quantities will be paid at the contract price per unit of measurement for the Section 212 pay items listed in the bid schedule. Payment will be full compensation for the work prescribed in this Section. See Subsection 109.05.

DIVISION 300 AGGREGATE AND BASE COURSES

Section 304. — FULL DEPTH RECLAMATION Description

304.01 This work consists of pulverizing to a depth of 6-inches an existing pavement and base in-place, mixing this material with water, and shaping and compacting the mix to produce a base.

Material

304.02 Conform to the following Subsections:

Construction Requirements

304.03 General. Establish profile and cross slope of 2%-5%. Povide proper drainage on roadway.

Before pulverizing, remove and dispose of unsuitable material as directed by the government.

Protect manholes, valve covers, and other buried facilities from damage.

304.05 Pulverizing. Furnish a road reclaimer that is:

(a) Self-propelled;

(b) Specifically manufactured for in-place reclamation;

(c) Capable of reducing the existing material to the required size;

(d) Equipped with at least an 8-foot (2.4-meter) cutting width;

(e) Equipped with standard automatic depth controls adjustable in increments of ½ inch (13 millimeters); and

(f) Equipped with sufficient horsepower to constantly pulverize to the required depth in a single pass.

Use the reclaimer to pulverize the existing roadway material, in-place until 100 percent passes the 2-inch (50-millimeter) sieve.

304.06 Mixing and Spreading. Add water as necessary to adjust the moisture content of the mixture to within 2 percent of the optimum for compaction. Mix to produce a homogenous full depth mixture. Spread the mixture uniformly across the existing roadbed to provide a final compacted shape according to the established line, grade, and cross-section.

304.07 Compacting. Determine the maximum density of the mixture according to AASHTO T 180, Method D.

Compact each layer full width. Roll from the sides to the center, parallel to the centerline of the road. Along curbs, headers, walls, and places not accessible to the roller, compact the material with approved tampers or compactors.

Compact each layer to at least 95.0 percent of maximum density. Determine the in-place density and moisture content according to AASHTO T 310 or other approved test procedures Contractor to engage third party testing agency to ensure compaction requirements have been met.

Submit testing agency reports to CO and COR

304.08 Surface Tolerance. If grade finishing stakes are required, finish the surface to within ±0.05 feet (±10 millimeters) from staked line and grade elevation.

If grade finishing stakes are not required, shape the surface to the required template and check the surface with a 10-foot (3-meter) straightedge. Defective areas are surface deviations in excess of ½ inch (13 millimeters) in 10 feet (3 meters) between two contacts of the straightedge with the surface.

Correct defective areas by loosening the material, adding or removing material, reshaping, and compacting.

304.09 Maintenance. Overlay the base within 14 days after compacting.

Section 304

Table 304-1 Sampling, Testing, and Acceptance Requirements

Material or Product (Subsection) Type of Acceptance (Subsection)

Specifications Sampling Frequency Point of Sampling Split Sample Reporting Time Remarks

Production

Pulverized material Measured and tested for conformance (106.04) Moisture-density

T 180, Method D (1) 1 per change in material Behind reclaimer before compaction

using in work

T 310 1 per 2,000 yd2 (1,700 m2) In-place after compaction

shift For Method 2 compaction only

Process control (153.03) Moisture content (in-place)

T 255 or other approved methods Minimum 1 per 3500 yd2 (3000 m2)

completion of test

T 27

reclaimer before compaction

2-inch (50-mm) sieve requirement only

Finished Product

Finished pulverized material Measured and tested for conformance (106.04) Surface tolerance & grade

301.06 Determined by the government Completed

FDR

surface

placement of next layer or as requested

(1) Minimum of 5 points per proctor.

Section 304

DIVISION 400 ASPHALT PAVEMENTS AND SURFACE TREATMENTS

Section 406. — FOG SEAL

406.01 This work consists of applying an emulsified asphalt fog seal.

Submit submittal and test reports of material.

Emulsified asphalt is designated according to AASHTO M 140 or AASHTO M 208.

Material

406.02 Conform to the following Subsections:

Construction Requirements

406.03 Equipment. Furnish an asphalt distributor with the following:

(a) Heater for uniformly heating the asphalt;

(b) Full circulation spray bar adjustable to 15-foot (4.5-meter) width;

(c) Positive controls including tachometer, pressure gauge, volume measuring device, or calibrated tank to uniformly deposit asphalt over the full width within 0.02 gallons per square yard (0.09 liters per square meter) of the required rate; and

(d) Thermometer for measuring asphalt temperature in the tank.

406.04 Surface Preparation.

(a) Clean the existing surface of loose material, dirt, and other deleterious material before placing the fog seal. Remove or protect raised pavement markers, pavement markings, reflectorized tape, and other material that interferes with the work. Protect service entrances (such as manholes, valve boxes, and drop inlets). Protect concrete work, rock walls, and other objects adjacent to the work.

(b) Dry the surface before placing the fog seal.

406.05 Weather Limitations. Apply fog seals only when the following apply:

(a) Ambient air temperature is above 50 °F (10 °C);

(b) Surface temperature is above 50 °F (10 °C);

(c) Weather is not foggy or rainy;

(d) Rain or temperatures below 40 °F (4 °C) are not anticipated for at least 24 hours after application;

(e) Sustained winds are less than or equal to 10 miles (16 kilometers) per hour; and

(f) Application is completed at least 2 hours before sunset.

406.06 Asphalt Application. Dilute the emulsion one part water to one part emulsified asphalt.

Apply the emulsion according to Subsection 407.09 at a rate of 0.10 to 0.15 gallons per square yard (0.4 to 0.7 liters per square meter) as approved by the government.

At locations where the fog seal cannot be applied with an asphalt distributor spray bar, apply the fog seal uniformly using a hand spray attachment or by another approved method.

Allow the fog seal to cure undisturbed for at least 2 hours or until the emulsified asphalt breaks and is…