TechnicalSpecifications_33ST26PW12.pdf

PUBLIC WORKS DEPARTMENT

NAPA, CALIFORNIA

Technical Specifications

FOR

Soscol Avenue Rehabilitation Silverado Trail to First Street

City Project No. 33ST26PW12

For use in connection with the Standard Specifications of the State of California Department of Transportation, latest Edition and the Standard Plans of the State of California Department of Transportation, latest Edition (unless otherwise noted in the Special Provisions), the City of Napa Standard Specifications and Standard Plans dated January 2022, including any supplemental updates thereto, and the Labor Surcharge and Equipment Rental Rates in effect on the date the work is accomplished.

Virtual Bid Opening:

Wednesday, May 6, 2026 3:00 p.m.

via OpenGov Platform

Dated: April 2026

LOCATION MAP

City of Napa

City of Napa Public Works Contract Documents Form 4.1 (2023-12-22) Soscol Avenue Rehabilitation City Project No. 33ST26PW12 Page i

TABLE OF CONTENTS

TECHNICAL SPECIFICATIONS

Part 1 – General

1.01 Order of Work

Part 2 – Traffic Control

2.01 Temporary Traffic Control Devices

2.02 Construction Area Signs

2.03 Maintaining Traffic

2.04 Lane Closure Requirements and Conditions

2.05 Traffic Control System for Lane Closure

2.06 Temporary Pavement Delineation

Part 3 – Earthwork

3.01 Dust Control

3.02 Clearing, Grubbing, and Landscape Restoration

3.03 Finishing Work

Part 4 – Existing Facilities

4.01 General

4.02 Potholing

4.03 Removal of Traffic Stripes and Pavement Markings

4.04 Removal of Pavement Markers

4.05 Construction Staking and Surveying

4.06 Adjust Frames and Covers to Grade

Part 5 – Surfacing and Pavements

5.01 Cold Plane Asphalt Concrete

5.02 Hot Mix Asphalt (HMA)

5.03 Hot Mix Asphalt (HMA) Digout

5.04 Crack Seal

5.05 Pavement Work Coordination and Sequencing

Part 6 – Traffic Control Devices

6.01 Pavement Markers

6.02 Thermoplastic Traffic Stripes and Pavement Markings

6.03 Green Pavement

6.04 Painted Curb

6.05 Street Signs

6.06 Street Signposts and Foundations

6.07 Traffic Signal Loop Detectors

6.08 Advanced Vehicle Detection System

Appendix A – City of Napa Holiday Calendar(s) Appendix B – City of Napa Temporary Traffic Control Guidelines

Soscol Avenue Rehabilitation TECHNICAL SPECIFICATION City Project No. 33ST26PW12 Page 2

TECHNICAL SPECIFICATIONS

Part 1 – General

1.01 Order of Work

Contractor shall follow the sequence of activities as set forth herein.

(1) Permits, Fees, and City Business License. Contractor shall obtain and pay for all necessary permits required for the Work. The cost thereof will be included in the Contract price paid for Control of Work, and no additional compensation will be allowed therefor.

(2) Notice of Excavation. Contractor shall comply with all applicable requirements in

Government Code §§ 4216 et seq., which are incorporated by reference herein.

(3) Project Notification. Contractor shall notify residents and/or property owners of the upcoming Work, in accordance with the requirements in the section titled “Construction Area Signs” of the Specifications.

(4) Traffic and Pedestrian Control Plan. Contractor shall implement approved traffic control plan in accordance with the requirements in the section titled “Traffic Control” of the Specifications. The cost thereof will be included in the Contract prices paid for Traffic Control, and no additional compensation will be allowed therefor.

(5) Remaining Work. Contractor shall perform remaining Work in accordance with the Project

Plans and these Specifications. Nonconflicting work in subsequent stages may proceed concurrently with the work in preceding stages, provided satisfactory progress is maintained in the preceding stages of construction.

Part 2 – Traffic Control

2.01 Temporary Traffic Control Devices

Flagging, signs, and all other traffic control devices furnished, installed, maintained, and removed when no longer required shall conform to the provisions in Section 12, "Temporary Traffic Control," of the Standard Specifications and these Specifications.

Category 1 traffic control devices are defined as those devices that are small and lightweight (less than 45 kg) and have been in common use for many years. The devices shall be known to be crashworthy by crash testing, crash testing of similar devices, or years of demonstrable safe performance. Category 1 traffic control devices include traffic cones, plastic drums, portable delineators, and channelizers.

If requested by the Engineer, the Contractor shall provide written self-certification for crashworthiness of Category 1 traffic control devices. Self-certification shall be provided by the manufacturer or the Contractor and shall include the following: date, Federal Aid number (if applicable), expenditure authorization, district, county, route, and kilometer post of project limits;

company name of certifying vendor, street address, city, state and zip code; printed name, signature and title of certifying person; and an indication of which Category 1 traffic control devices will be used on the project. The Contractor may obtain a standard form for self-certification from the Engineer.

Category 2 traffic control devices are defined as those items that are small and lightweight (less than 45 kg), that are not expected to produce significant vehicular velocity change but may otherwise be potentially hazardous. Category 2 traffic control devices include: barricades and portable sign supports.

City Project No. 33ST26PW12 Page 3

If requested by the Engineer, the Contractor shall provide a written list of Category 2 devices to be used on the project at least five days prior to beginning any work using the devices. For each type of device, the list shall indicate the FHWA acceptance letter number and the name of the manufacturer.

MEASUREMENT AND PAYMENT – The Contract Lump Sum price for Traffic Control and Pedestrian Control Plan includes full compensation for providing all labor, materials, tools, equipment, and incidentals and for doing all the work involved in this section, including providing self-certification for crashworthiness of Category 1 traffic control devices and for providing a list of Category 2 devices used on the project and labeling Category 2 devices as specified, complete in place, as described in the Contract and these Technical Specifications, as directed by the Engineer, and no additional compensation will be allowed therefor.

2.02 Construction Area Signs

Construction area signs shall be furnished, installed, maintained, and removed when no longer required in conformance with the provisions in the section titled, "Temporary Traffic Control," of these Specifications.

Contractor shall know and comply with the requirements of the section titled, "Prequalified and Tested Signing and Delineation Materials," of the Special Provisions. Type II retroreflective sheeting shall not be used on construction area sign panels. Sign substrates for stationary mounted construction area signs may be fabricated from fiberglass reinforced plastic as specified under "Prequalified and Tested Signing and Delineation Materials" of the Special Provisions.

Certain signs may be required to be covered during the progress of the work. Signs that are no longer required or that convey inaccurate information to the public shall be immediately covered, removed, or the information shall be corrected. Covers for construction area signs shall be of sufficient size and density to completely block out the complete face of the signs. The retroreflective face of the covered signs shall not be visible either during the day or at night. Covers shall be fastened securely so that the signs remain covered during inclement weather. Covers shall be replaced when they no longer cover the signs properly.

The Contractor shall provide two (2) notifications to the residents and/or businesses, with the first being at least forty-eight (48) hours (excluding weekends and holidays) in advance of the construction start date and the second being at least forty-eight (48) hours in advance of performing any grinding or paving activities at the site. The Engineer must approve the notification before distribution.

The notification form to be provided to residents and property owners shall be submitted to the City for review and approval. The Contractor shall know and comply with the requirements of the section titled “Submittals,” of the Special Provisions.

Street parking may be restricted as necessary to facilitate construction activity. “No Parking” signs, as required, shall be placed by Contractor 48 hours in advance of the parking restriction. “No Parking” signs shall have the following information:

“Tow Away, No Parking

Date of Restriction

Time of Restriction

Construction Zone

“Vehicles in Violation Subject to Tow at Owner’s Expense”

“Napa Police Department: 707-257-9223"

CVC 22658 (1); CVC 22651 (L)

City Project No. 33ST26PW12 Page 4

“No Parking” signs shall have red letters on a white background. “No Parking” signs shall be spaced no more than 30 feet apart. The City can provide “No Parking” signs at the Contractor’s request.

Contractor will not be allowed to restrict parking in all areas of the project for the entire duration of the project to facilitate their work. The placement of “No Parking” signs shall be conducted in a manner that reasonably reflects the location of the work at any given time during the project.

If changeable message signs (CMS) are included as part of the project, the following security measures shall be implemented to the maximum extent possible:

• Contractor shall remove all hardware designed for composing and controlling messages on the CMS.

• Contractor shall ensure all CMS hardware boxes are fully locked and secure with a padlock and key approved by the City. Control box security implements shall include, but not be limited to, one or more padlock(s) secured to a heavy-duty hasp or lock and chain.

Contractor shall maintain or update information contained on the signs daily.

The cost of furnishing, installing, maintaining, and removing signs, sign covers, lights, flares, temporary railing, barricades, flaggers, guards, and all construction area traffic control devices will be borne by the Contractor.

MEASUREMENT AND PAYMENT – The Contract Lump Sum price for Traffic Control and Pedestrian Control Plan includes full compensation for providing all labor, materials, tools, equipment, and incidentals and for doing all the work involved in this section, complete in place, as described in the Contract and these Technical Specifications, as directed by the Engineer, and no additional compensation will be allowed therefor.

2.03 Maintaining Traffic

Contractor shall know and comply with the requirements of Sections 7-1.03, "Public Convenience," and 12-4, “Maintaining Traffic,” of the Standard Specifications and these Specifications. Nothing in these Specifications will be construed as relieving the Contractor from the responsibilities specified in the Standard Specifications.

Contractor shall furnish and erect Standard W20-1 “Road Work Ahead” and Standard G20-2 “End Road Work” signs to provide advance warning to the traffic at the job site. W20-1 and G20-2 signs shall also be installed along all side streets entering the work area. Contractor shall submit a Traffic Control Plan that includes the exact locations of the signs.

No work that would require a lane closure will be performed unless otherwise authorized by the Engineer. Lane closures shall conform to the provisions in the section "Traffic Control System for Lane Closure" of these Specifications. The term closure, as used herein, is defined as the closure of a traffic lane or lanes, including ramp or connector lanes, within a single traffic control system.

Bicycle traffic shall be maintained per these Specifications.

Contractor shall provide for the safe and orderly movement of traffic at all times during construction.

On all streets, one lane in each direction shall be maintained at all times. Temporary street closures or providing only one lane for both directions may be authorized by the Engineer provided adequate circulation is maintained and/or adequate flaggers and signage are provided to the satisfaction of the Engineer.

No street closures will be allowed unless directed by the Engineer. If the Contractor desires a street closure, the Contractor shall submit a written request, accompanied by a traffic control plan, to the Engineer for review and approval. The request shall state the reason, locations, and times for the closure, and shall be submitted a minimum of five (5) working days prior to the date of the requested closure.

Engineer will authorize or deny the request within three (3) working days after the receipt of the request. If the street closure request is authorized, then the Contractor shall notify the Police and

City Project No. 33ST26PW12 Page 5

Fire Department of the City, the Division of Forestry, local ambulance services, the V.I.N.E. Bus Service, Napa Garbage Service, Napa Valley Unified School District Transportation Department, and the U.S. Post Office in writing, 48 hours in advance of all street closures and keep the Fire Department posted at all times regarding available access to the streets. Contractor shall also notify United Parcel Service (UPS), Federal Express, and other mail delivery services of planned street closures and the current schedule.

No street closures will be allowed overnight.

Any damage to temporary facilities or completed work caused by emergency vehicle traffic during these periods shall be repaired or replaced by the contractor at the City’s direction and shall be paid for as extra work.

Contractor shall furnish, install, maintain, and remove barricades, lights and signs as required, and shall provide flaggers and other facilities to safeguard adequately the general public, local pedestrian and vehicle traffic, and the work as may be deemed necessary by the Engineer during working and non-working hours.

The contractor shall furnish, maintain, and install two (2) changeable message signs for use on the project at a minimum. The signs shall be placed at locations designated by the Engineer and relocated at the Engineer’s discretion at no additional cost to the City. The changeable message boards shall not be Wi-Fi/Bluetooth enabled. The changeable message boards shall at a minimum follow the guidelines listed:

1. Display messages that consist of no more than two phases (pages), with each phase consisting of no more than three lines of text that shall be understood by itself regardless of the sequence in which it is displayed.

2. The minimum time that an individual phase (page) is displayed should be based on 1 second per word or 2 seconds per unit of information, whichever produces a lesser value.

The display time for a phase should never be less than 2 seconds.

3. The maximum cycle time of a two-phase message should be 8 seconds.

4. No more than three units of information should be displayed on a phase(page) of a message.

Traffic signs, flashing lights, lighted arrow boards, barricades, temporary railings, and other traffic safety devices used to control traffic shall conform to the requirements of the section titled, “Temporary Traffic Control,” of these Specifications and the current edition of the Manual of Uniform Traffic Control Devices (including the California Supplement). Flashing lights shall be provided on each barricade. The Contractor shall inspect all safety devices at the beginning of each workday.

Contractor shall take extra care to minimize disruption to the adjacent residences/businesses during the progress of work. The Contractor shall provide access to all residences and/or businesses at all times during the progress of the work.

Subject to the notification of property owners and authorized in advance by the Engineer in writing, temporary closure of driveways may be allowed per these Specifications. However, unless a driveway is being reconstructed, a driveway shall not remain closed outside of the hours of work as specified in the section titled, “Authorized Working Days and Times” of the Special Provisions unless otherwise authorized by the Engineer.

Contractor shall file, with the Engineer, Fire Department, and Police Department, the name and telephone number of company representative (provide minimum two contacts) to be notified after normal working hours and on weekends, in case of emergency. This information shall be provided at the preconstruction conference. If a preconstruction conference is not held, it shall be provided to the Engineer prior to the start of work.

Contractor shall obtain a Caltrans Encroachment Permit prior to setting up any traffic control in the Caltrans Right of Way.

City Project No. 33ST26PW12 Page 6

Contractor shall submit, prior to or at the preconstruction conference, a Traffic Control Plan (TCP) which conforms to all requirements of the Standard Specifications, these Specifications, and the City’s Temporary Traffic Control Plan Guidelines (Appendix B). The TCP shall be prepared by a company/Contractor who is knowledgeable (trained and/or certified) in proper preparation of traffic control plans. This TCP shall include all lane closures, construction area signs, flag protection, changeable message signs, detours, and parking prohibitions. TCPs shall conform to the most current edition of the “California Manual on Uniform Traffic Control Devices”. No work will commence prior to the submittal and approval of a satisfactory traffic control plan. A TCP will not be deemed satisfactory unless it conforms to the requirements of the aforementioned manual.

More than one TCP may be required for different phases of the work, and each traffic control plan shall conform to the requirements of these Specifications and the Standard Specifications.

Contractor shall provide pedestrians with reasonably safe, convenient, and accessible paths that replicate as nearly as practical the most desirable characteristics of the existing sidewalks or footpaths. The Contractor shall submit a Pedestrian Control Plan (PCP) for the review and approval of the Engineer at the time of the submittal of the Traffic Control Plan. The PCP shall provide a safe path of travel for pedestrians within the construction site and shall provide access to the corner ramps during construction. The Contractor shall provide the appropriate safety barriers, including water barriers, required when directing pedestrians into the roadway. The PCP shall follow requirements set forth in the most recent CA MUTCD including the use of water barriers and other approved safety devices for the protection of pedestrians. Pedestrians shall not be detoured more than two (2) blocks or over weekends or holidays unless approved by the Engineer.

At the end of each working day, if a difference in excess of 0.17-foot exists between the elevation of the existing pavement and the elevation of any excavation within eight (8) feet of the traveled way, material shall be placed and compacted against the vertical cuts adjacent to the traveled way.

MEASUREMENT AND PAYMENT – The Contract Lump Sum price for Traffic Control and Pedestrian Control Plan includes full compensation for providing all labor, materials, tools, equipment, and incidentals and for doing all the work involved in this section, including the placement of material on a 4:1 slope, regardless of the number of times it is required, and subsequent removing or reshaping of the material to the lines and grades shown on the plans, complete in place, as described in the Contract and these Specifications, as directed by the Engineer, and no additional compensation will be allowed therefor.

The Contract unit price paid for Each Changeable Message Board Signs includes full compensation for providing all labor, materials, tools, equipment, and incidentals and for doing all the work involved in this section, complete in place, as described in the Contract and these Technical Specifications, as directed by the Engineer, and no additional compensation will be allowed therefor.

2.04 Lane Closure Requirements and Conditions

Lane closures, if authorized by the Engineer, shall conform to the provisions in the section titled, "Maintaining Traffic," of these Specifications.

The term closure, as used herein, is defined as the closure of a traffic lane or lanes, including ramp or connector lanes, within a single traffic control system.

LANE CLOSURE SCHEDULE

By noon Monday, the Contractor shall submit a written schedule of planned closures accompanied by a Traffic Control Plan for the following week period, defined as Friday noon through the following Friday noon.

The Closure Schedule shall show the locations and times when the proposed closures are to be in effect. Closure Schedules submitted to the Engineer with incomplete, unintelligible, or inaccurate information will be returned for correction and resubmittal. Contractor will be notified of disapproved closures or closures that require coordination with other parties as a condition of approval.

City Project No. 33ST26PW12 Page 7

Amendments to the Closure Schedule, including adding additional closures, shall be submitted to the Engineer, in writing, at least three working days in advance of a planned closure. Approval of amendments to the Closure Schedule will be at the discretion of the Engineer.

MEASUREMENT AND PAYMENT – The Contract Lump Sum price for Traffic Control and Pedestrian Control Plan includes full compensation for providing all labor, materials, tools, equipment, and incidentals and for doing all the work involved in this section, complete in place, as described in the Contract and these Technical Specifications, as directed by the Engineer, and no additional compensation will be allowed therefor.

2.05 Traffic Control System for Lane Closure

A traffic control system for lane closures, if authorized by the Engineer, will consist of closing traffic lanes and the provision of traffic detours, including but not limited to, furnishing, installing, maintaining and removal (when no longer required) of traffic control devices in accordance with the provisions of the sections titled “Prequalified and Tested Signing and Delineation Materials,” of the Special Provisions and “Maintaining Traffic” and “Construction Area Signs,” and these Specifications.

The provisions in this section will not relieve the Contractor from the responsibility to provide such additional devices or take such measures as may be necessary to comply with the provisions in the section titled “Safety Precautions and Programs,” of the General Conditions and the Special Provisions.

The adjustment provisions in Section 4-1.05, "Changes and Extra Work," of the Standard Specifications shall not apply to the item of traffic control. Adjustments in compensation for traffic control will be made on a force account basis as provided in Section 9-1.04, "Force Account," of the Standard Specifications for increased work and estimated on the same basis in the case of decreased traffic control required by changes ordered by the Engineer to pre-approved traffic control plans.

The cost of furnishing, installing, maintaining, and removing signs, sign covers, lights, flares, temporary railing, barricades, flaggers, guards, and all construction area traffic control devices will be borne by the Contractor.

MEASUREMENT AND PAYMENT – The Contract lump sum price paid for Traffic Control and Pedestrian Control Plan includes full compensation for furnishing all labor (including flagging and signs), material, tools, equipment, and incidentals, and for doing all the work involved in conforming to the provisions of this Section, including but not limited to placing, removing, storing, maintaining, moving to new locations, replacing, and disposing of the components of the traffic control system, complete in place, as described in the Contract and these Technical Specifications, as directed by the Engineer, and no additional compensation will be allowed therefor.

2.06 Temporary Pavement Delineation

Temporary pavement delineation shall be furnished, placed, maintained, and removed in conformance with the provisions in Section 12-6, "Temporary Pavement Delineation," of the Standard Specifications and these Specifications. Nothing in these Specifications will be construed as reducing the minimum standards specified in the California Manual on Uniform Traffic Control Devices for Streets and Highways published by the Department or as relieving the Contractor from the responsibilities specified in the section titled, “Safety Precautions and Programs,” of the General Conditions and the Special Provisions. Under this section, pavement delineation shall also include pavement legends and crosswalks.

Whenever the work causes obliteration of pavement delineation, or when no pavement delineation existed prior to the Contractor’s activities but said activities alter the typical pattern of traffic, temporary or permanent pavement delineation shall be in place prior to opening the traveled way to public traffic. Laneline, centerline, and crosswalk pavement delineation shall be provided at all

City Project No. 33ST26PW12 Page 8 times for traveled ways open to public traffic. Contractor shall provide for pavement delineation when traffic is allowed on aggregate base.

The temporary reflective pavement markers shall be placed in conformance with the manufacturer's instructions and shall be cemented to the surfacing with the adhesive recommended by the manufacturer, except epoxy adhesive shall not be used to place the pavement markers in areas where removal of the pavement markers will be required. For temporary pavement delineation of stop bars and crosswalks, the Contractor shall use reflective striping tape, traffic paint, cones, etc, for short-term delineation.

For pavement surfaces that have been cold-planed, ground, or otherwise prepared and will remain open to traffic for more than five (5) calendar days, temporary painted striping shall be provided in lieu of temporary pavement markers. The temporary painted striping shall match the existing lane configuration and shall be maintained in good condition until the permanent pavement delineation is placed.

MEASUREMENT AND PAYMENT – The Contract Lump Sum price paid for Traffic Control and Pedestrian Control Plan includes full compensation for furnishing all labor (including flagging costs), material, tools, equipment, and incidentals, and for doing all the work involved in conforming to the provisions of this Section, including but not limited to placing, removing, storing, maintaining, moving to new locations, replacing, and disposing of the components of the traffic control system, complete in place, as described in the Contract and these Specifications, as directed by the Engineer, and no additional compensation will be allowed therefor.

Part 3 – Earthwork

3.01 Dust Control

Contractor shall know and comply with the General Conditions and Special Provisions for Project Site Conditions and Maintenance and the provisions in section 1.10.02 "Water Pollution Control," of the City Standard Specifications.

Contractor shall be familiar with and comply with all monitoring, reporting, notifications, and control requirements of agencies having jurisdiction over air quality.

Contractor shall prevent the formation of an airborne dust nuisance by watering work areas as required until the project is completed and accepted. The amount of water used shall not be excessive to cause soil carry-over or wash-off outside the boundaries of the working area. If soil wash-off occurs, the Contractor shall immediately notify the Engineer and identify the area where wash-off occurred. Contractor shall provide polyethylene sheeting to place underneath and over any stockpiled soil, unless otherwise directed by the Engineer. The stockpile shall be covered daily after completion of work. The sheeting shall be adequately weighted or secured to keep the sheeting in place during non-work periods.

MEASUREMENT AND PAYMENT – The Contract lump sum price for Water Pollution Control includes full compensation for providing all labor, materials, tools, equipment, and incidentals and for doing all the work involved in this section, complete in place, as described in the Contract and these Technical Specifications, as directed by the Engineer, and no additional compensation will be allowed therefor.

3.02 Clearing, Grubbing, and Landscape Restoration

Contractor shall know and comply with the requirements of Section 17-2, “Clearing and Grubbing,” of the Standard Specifications and the sections titled, “Project Site and Nearby Property Protections” of the Special Provisions.

Clearing And Grubbing

City Project No. 33ST26PW12 Page 9

A. Areas shall be cleared and grubbed by removing obstructions, trees, shrubs, grass, other vegetation, debris, mulch, dirt, and rocks contained within the project limits.

B. Prior to resurfacing activities, the Contractor shall sweep the entire width of the roadway to the edge of asphalt and trim all vegetation necessary to see and work on the entire roadway width. Bushes, shrubs, plants, trees, or other related vegetation shall be trimmed to the maximum extent reasonable, to ensure a clear path for construction and paving related activities. No vegetation or organic matter shall be present on the roadway after clearing activities, roadways shall be free of debris and organic matter before they are resurfaced. Unless the Engineer specifies otherwise, larger vegetation, such as trees and shrubs (as practicable), shall be trimmed back, but not removed, to meet the two (2) foot clearance.

C. Clearing and Grubbing related activities that impact the roadway and/or paving operations shall be performed and approved in the field by the Engineer before paving operations are permitted to take place.

D. All existing vegetation, outside the areas to be cleared and grubbed, shall be protected from the Contractor's operations unless specifically shown on the Plans to be removed.

E. Nothing herein shall be construed as relieving the Contractor of their responsibility for final cleanup.

F. Final cleanup shall include removal of stockpile material, cleaning finished pavement and dirt of foreign material, and cleaning construction generated debris and obstructions from ditches, culverts, and drainage facilities.

All existing vegetation, roadway facilities, and private property that have not been identified for removal or relocation, shall be protected from injury or damage. In the event that existing vegetation and/or facilities to remain are damaged by the Contractor’s activities, the Contractor shall replace the damaged items in kind and to the satisfaction of the property owner and the Engineer. Such items may include, but are not limited to, the reconnection of landscape electrical and/or irrigation to function as did prior to the Contractor’s activities.

Tree branches extending from private property over the public right of way shall only be removed per the Engineer’s direction. Tree branches extending over the public right of way shall be pruned by the contractor, as needed to create 14 feet of clearance for equipment.

Construction and/or demolition debris, including but not limited to vegetative matter, trees, roots, chips, etc., shall be hauled off site and disposed of by the Contractor at the end of each workday.

Nothing herein will be construed as relieving the Contractor of the Contractor’s responsibility for final cleanup of the public right of way. Contractor shall know and comply with the requirements of the section titled, “Finishing Work,” of these Specifications.

MEASUREMENT AND PAYMENT – The Contract Lump Sum price for Clearing, Grubbing, and Landscape Restoration includes full compensation for providing all labor, materials, tools, equipment, and incidentals and for doing all the work involved in this section, including the removal of trees less than 6 inches DBH complete in place, as described in the Contract Documents, as directed by the Engineer, and no additional compensation will be allowed therefor.

3.03 Finishing Work

Finishing Work includes performing finishing activities after completing all other construction activities.

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Do not stockpile material on finished pavement or allow material to drift across pavement. Clean finished pavement of dirt and foreign material. Cleanup of the roadway of all construction debris at the end of each workday shall be included as part of this section.

MEASUREMENT AND PAYMENT – The Contract lump sum price for Control of Work includes full compensation for providing all labor, materials, tools, equipment, and incidentals and for doing all the work involved in this section, complete in place, as described in the Contract Documents as directed by the Engineer, and no additional compensation will be allowed therefor.

Part 4 – Existing Facilities

4.01 General

Contractor shall know and comply with the requirements of project disposal requirements as specified in the contract documents.

Performing work on existing facilities includes abandoning, adjusting, modifying, obliterating, reconstructing, relaying, relocating, remodeling, removing, repairing, resetting, or salvaging a facility.

If during work activities damage occurs to a facility or a portion of the facility to remain in place, or to materials to be salvaged or incorporated into the work, the Contractor shall repair or replace it.

The repair or replacement must be equal or better in quality than the original portion.

4.02 Potholing

Contractor shall know and comply with the requirements of the current edition of the USA North’s California Excavation Manual, and the sections titled, “Property and Facility Preservation” and “Order of Work,” of these Specifications.

For bidding purposes, the Contractor shall assume that each parcel is served by a water lateral, sewer lateral, and gas lateral. The Contractor is responsible for verifying the location and depth of all existing laterals in the field and shall take appropriate precautions to avoid damage. Any conflicts with the proposed work shall be identified and addressed by the Contractor prior to paving activities.

At the Contractor’s option, potholing shall be either performed by hand digging or by vacuum excavation.

Hand digging will be performed by excavating a pothole by manual means with handheld, non-mechanical equipment such as a shovel or hand auger.

Vacuum excavation will consist of air or water pressure to break up the soil and a vacuum device to collect the spoils. The Contractor shall determine if air or water vacuum excavation will be used dependent upon specific site and environmental characteristics. Soil types such as heavy clay may require water vacuum excavation. Air vacuum excavators shall be utilized if mud from water vacuum excavators cannot be disposed of properly. Air vacuum excavators shall be used if damage to utilities, such as cutting through cables, could occur with the use of water vacuum excavators. USA North and all facility owners shall be notified prior to start of work if vacuum excavation method is to be used.

1. Air: Air vacuum excavators shall utilize a high velocity air stream to penetrate, expand, and break up the soil. The loosened particles of soil and rock shall be removed from the excavation through the use of a vacuum.

2. Water: Water vacuum excavation systems shall excavate the pothole using high pressure water to reduce and loosen the soil. The wet soil and mud slurry shall be removed to a spoil tank using a vacuum.

Contractor shall notify the appropriate regional notification center for operators of subsurface installations at least two working days, but not more than fourteen (14) calendar days, prior to

City Project No. 33ST26PW12 Page 11 commencing excavation or other work close to any underground pipeline, conduit, duct, wire, or other structure.

The regional notification centers include, but are not limited to, the following:

Notification Center Telephone Number

Underground Service Alert-Northern California

(USA)

1-800-642-2444

1-800-227-2600

Potholes shall be sawcut round with a maximum size of twelve (12) inches in diameter unless otherwise directed by the Engineer.

The construction drawings shall be compared to locate paint marks to determine if all existing utilities shown on the drawings have been identified in the field. If the drawings and located paint marks do not match, additional potholing shall be completed to determine accurate locations.

If the locate paint marks have improperly designated the location of a facility, and the facility is exposed during potholing, the facility owner and the Engineer shall be notified. The entity that exposed the facility shall document the horizontal and vertical location of the facility and communicate the information to the facility owner. If a utility cannot be located through potholing used in conjunction with construction drawings and locate marks, the facility owner and the Engineer shall be contacted.

Conditions requiring potholing:

1. Open-Cut and Roadway Excavations: Potholing shall be completed to expose existing utilities, including mains and service lines, when open cut excavations are within tolerance zone of the marked utility. The tolerance zone, also known as the “approximate location”, is a strip of land equal to the width of the underground utility plus twenty-four (24) inches on each side.

2. Trenchless Installation Methods: For trenchless activities with a bore path that parallels a utility (mains and service lines) within three (3) feet, potholing shall be completed at the beginning and the end of each bore and every fifty (50) feet along the route. For trenchless activities with a bore path that parallels a utility (mains and service lines) within five (5) feet, potholing is required at the beginning and end of the bore and every two hundred (200) feet along the route. Potholing shall be completed for all utilities, mains, and service lines) crossing the path of trenchless activities.

3. Congested Utilities: In congested areas having several facilities in close proximity and/or are crossing each other, locations have greater potential to be less accurate. Potholing shall be utilized for excavations near congested utility areas.

Facilities exposed during potholing shall be protected throughout the project. Utilities that are rendered unsupported due to potholing shall be temporarily supported by shoring or other means.

The utility shall be protected from heavy and sharp items falling into the excavation that could damage or cut the facility.

Potholes shall be restored by the end of the workday after the utility has been located, or as otherwise directed by the Engineer. Potholes shall be backfilled with a slurry cement backfill conforming to Sections 19-3.02E, “Slurry Cement Backfill,” and 19-3.03F, “Culvert Bedding” of the Standard Specifications, unless otherwise directed by the Engineer. All potholes located in asphalt concrete shall have the edges tack oiled and permanently paved to match the existing asphalt concrete thickness (minimum 4”). The Contractor shall know and comply with the requirements of the sections titled, “Hot Mix Asphalt (HMA),” of these Specifications. The repair of potholes in concrete driveways and sidewalks requires the removal and replacement of the concrete to score lines unless otherwise authorized by the Engineer. The Contractor shall know and comply with the requirements of the section titled, “Miscellaneous Concrete Construction,” of these Specifications.

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Contractor shall pothole five (5) days prior to beginning any excavation all buried utilities and other man-made objects throughout the proposed work area of work, check for conflicts, and provide all pothole data and written notice of any suspected conflicts between existing and proposed facilities.

Said pothole data and written notice shall be provided to the Engineer not less than 14 working days prior to beginning any such excavation.

MEASUREMENT AND PAYMENT – The Contract Lump Sum price for Potholing includes full compensation for providing all labor, materials, tools, equipment, and incidentals and for doing all the work involved in this section, complete in place, as described in the Contract and these Specifications, as directed by the Engineer, and no additional compensation will be allowed therefor.

4.03 Removal of Traffic Stripes and Pavement Markings

Contractor shall know and comply with the requirements of Sections 84-9, “Existing Markings” and 14-11.12, “Removal of Yellow Traffic Stripe and Pavement Markers with Hazardous Waste Residue,” of the Standard Specifications the provisions in section 1.10.02 "Water Pollution Control," of the City Standard Specifications.

All existing traffic stripes and pavement markings shall be removed to the limits as shown on the plans or as directed by the Engineer by grinding or a method authorized by the Engineer such as blast cleaning. All removals shall be done in a manner to minimize removal of existing asphalt concrete. Stop bars may be removed up to one week prior to the restriping. If removed in advance, the Contractor shall install temporary pavement delineation in accordance with the section titled, “Temporary Pavement Delineation,” of these Specifications. Adequate lane markings and traffic control shall be provided at all times.

Contractor shall reference any pavement delineation that is to be replaced on the same alignment and location with a sufficient number of control points to reestablish the alignment and location of the new pavement delineation prior to removal. The references shall also include the limits or changes in striping pattern, including one-and two-way barrier lines, limit lines, crosswalks, and other pavement markings. Reference point markings on improvements within the right of way shall be discreet in appearance with lettering and numbering less than 5-inches in height. No reference point markings will be made on private property without prior written consent from the property owner. This information shall be provided to the Engineer prior to the removal of any pavement delineation. Transmittal of this information will be considered as a submittal item and shall conform to the requirements of the section titled, “Submittals,” of the Special Provisions.

Contractor shall know and comply with the provisions in section 1.10.02 "Water Pollution Control," of the City Standard Specifications. Waste from removal of thermoplastic pavement marking contains lead chromate in average concentrations less than 5 mg/L Soluble Lead or 1000 mg/kg Total Lead. Contractor shall assume that the residue does not contain heavy metals in concentrations that exceed thresholds established by the California Health and Safety Code and Title 22 of the California Code of Regulations and is not regulated under the Federal Resource Conservation and Recovery Act (RCRA), 42 USC § 6901 et seq. Thermoplastic may produce toxic fumes when heated.

LEAD COMPLIANCE PLAN

Contractor shall know and comply with the requirements of Title 8, California Code of Regulations, Section 1532.1, "Lead," for specific Cal-OSHA requirements when working with lead and with Section 84-9.03C, “Remove Traffic Stripes and Pavement Markings Containing Lead,” of the Standard Specifications and these Specifications.

Prior to the removal of any striping or pavement markings, the Contractor shall prepare, and the Engineer may authorize, a project specific Lead Compliance Plan to prevent or minimize worker exposure to lead while handling removed thermoplastic residue. The Lead Compliance Plan shall contain the elements listed in Title 8, California Code of Regulations, Section 1532.1(e)(2)(B).

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Before submission to the Engineer, the Lead Compliance Plan shall be accepted by an Industrial Hygienist certified in Comprehensive Practice by the American Board of Industrial Hygiene. The Plan shall be submitted to the Engineer at least ten (10) days prior to beginning removal of paint and/or thermoplastic. Prior to removing paint and/or thermoplastic pavement marking, personnel who have no prior training, including City personnel, shall complete a safety training program provided by the Contractor that meets the requirements of Title 8, California Code of Regulations, Section 1532.1, "Lead," and the Contractor’s Lead Compliance Program. Personal protective equipment, training, and washing facilities required by the Contractor’s Lead Compliance Plan shall be supplied to City personnel by the Contractor.

WORK PLAN

Contractor shall prepare a project specific Work Plan for the removal, containment, storage, and disposal of yellow thermoplastic and yellow painted traffic stripe and pavement marking in conformance with Section 14-11.12B(2), “Work Plan,” of the Standard Specifications and these Technical Specifications.

The Engineer will review the work plan within five (5) business days of receipt. Contractor shall not perform work that generates hazardous waste residue until the work plan has been authorized by the Engineer. Contractor shall correct any rejected work plan and resubmit a corrected work plan within five (5) business days of notification by the Engineer. A new review period of five (5) business days will begin from the date of resubmittal.

Nothing in these Technical Specifications will relieve the Contractor from the Contractor’s responsibilities as provided in the section titled, “Safety Precautions and Programs,” of the General Conditions and the Special Provisions.

Permanent or temporary pavement delineation shall be in place prior to opening the traveled way to public traffic. Lanelines, centerline pavement delineations, and crosswalks shall be provided at all times for traveled ways open to public traffic. Any deviation from these requirements shall be authorized by the Engineer.

All debris generated from this activity shall be hauled off-site at the end of each workday.

MEASUREMENT AND PAYMENT – The Contract lump sum price for Remove Traffic Stripes, Pavement Markers, & Pavement Markings includes full compensation for providing all labor, materials, tools, equipment, and incidentals and for doing all the work involved in this section, including the removal and disposal of existing traffic stripes and pavement markings, complete in place, as described in the Contract Documents, as directed by the Engineer, and no additional compensation will be allowed therefor.

The Contract lump sum price paid for Lead Compliance & Work Plan includes full compensation for furnishing all labor, materials, tools, equipment, and incidentals and for doing all the work involved in preparing the Lead Compliance and Work Plans, including paying the Certified Industrial Hygienist, and for providing personnel protective equipment, training, air monitoring, and medical surveillance, as described in the Contract Documents, as directed by the Engineer, and no additional compensation will be allowed therefor.

4.04 Removal of Pavement Markers

Contractor shall know and comply with the requirements of Section 81-8, “Existing Pavement Markers and Delineators,” of the Standard Specifications and the provisions in section 1.10.02 "Water Pollution Control," of the City Standard Specifications.

All existing pavement markers, when no longer required for traffic lane delineation, shall be removed to the limits as shown on the plans or as directed by the Engineer, and properly disposed

of. The pavement markers shall be maintained, as long as practical, until the removal is scheduled.

Adequate lane markings and traffic control shall be provided at all times.

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Nothing in these Specifications will relieve the Contractor from the Contractor’s responsibilities as provided in the section titled, “Safety Precautions and Programs,” of the General Conditions and the Special Provisions.

All debris generated from this activity shall be hauled off-site at the end of each workday.

MEASUREMENT AND PAYMENT – The Contract lump sum price for Remove Traffic Stripes, Pavement Markers, & Pavement Markings includes full compensation for providing all labor, materials, tools, equipment, and incidentals and for doing all the work involved in this section, including the removal and disposal of existing pavement markers, complete in place, as described in the Contract Documents, as directed by the Engineer, and no additional compensation will be allowed therefor.

4.05 Construction Staking and Surveying

General All construction staking, surveying, and grade control necessary to complete the work, including establishing existing grades and elevations, shall be the responsibility of the Contractor. No separate survey by the City will be provided for this project.

Scope of Work The Contractor shall furnish all labor, equipment, and materials required to perform any construction staking and surveying necessary to control the work as shown on the plans and specified in these Specifications, including but not limited to:

• Establishing and recording existing surface grades and elevations within the project limits prior to beginning construction.

• Providing all staking, layout, offset lines, and grades required for removals, excavation, cold planing, pavement overlays, digouts,, and all other work items.

• Verifying and maintaining horizontal and vertical control throughout construction.

• Protecting, preserving, and referencing any existing survey control monuments, property corner monuments, and benchmarks.

The Contractor shall preserve all survey control points and monuments within the project area. Any disturbance or destruction of existing control monuments shall be the Contractor’s responsibility to restore or replace, at no cost to the City, by a Licensed Land Surveyor registered in the State of California.

Submittals Prior to the start of construction, the Contractor shall submit a staking and grade verification plan identifying how existing grades will be established and recorded.