TechnicalSpecifications-CityWideStriping-Phase2.pdf

PUBLIC WORKS DEPARTMENT

NAPA, CALIFORNIA

Technical Specifications

FOR

City Wide Striping – Phase 2 Buhman Ave, Partrick Rd, West Lincoln Ave, Redwood Rd, and East Imola Ave.

City Project No. 30230810

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:

via OpenGov Platform

Dated: July 2026

City of Napa Public Works Contract Documents Form 4.1 (2023-12-22) City Wide Striping – Phase 2 City Project No. 30230810 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 Removal of Temporary Pavement Delineators

Part 3 – Traffic Control Devices

3.01 Pavement Markers

3.02 Thermoplastic Traffic Stripes and Pavement Markings

3.03 Green Pavement

3.04 Painted Curb

3.05 Street Signs

3.06 Street Signposts and Foundations

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

City Wide Striping – Phase 2 TECHNICAL SPECIFICATION City Project No. 30230810 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) 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.

(3) 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.

(4) 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.

MEASUREMENT AND PAYMENT – The Contract Lump Sum price for Traffic Control and Pedestrian Control Plan (Buhman), Traffic Control and Pedestrian Control Plan (Partrick), Traffic Control and Pedestrian Control Plan (West Lincoln), Traffic Control and Pedestrian Control Plan (Redwood), and Traffic Control and Pedestrian Control Plan (East Imola) 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 as specified, complete in place, as described

City Project No. 30230810 Page 3 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.

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)

“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.

MEASUREMENT AND PAYMENT – The Contract Lump Sum price for Traffic Control and Pedestrian Control Plan (Buhman), Traffic Control and Pedestrian Control Plan (Partrick), Traffic Control and Pedestrian Control Plan (West Lincoln), Traffic Control and Pedestrian Control Plan (Redwood), and Traffic Control and Pedestrian Control Plan (East Imola) 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

City Project No. 30230810 Page 4 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 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.

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.

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

City Project No. 30230810 Page 5 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.

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.

MEASUREMENT AND PAYMENT – The Contract Lump Sum price for Traffic Control and Pedestrian Control Plan (Buhman), Traffic Control and Pedestrian Control Plan (Partrick), Traffic Control and Pedestrian Control Plan (West Lincoln), Traffic Control and Pedestrian Control Plan (Redwood), and Traffic Control and Pedestrian Control Plan (East Imola) 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.

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.

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.

City Project No. 30230810 Page 6

MEASUREMENT AND PAYMENT – The Contract Lump Sum price for Traffic Control and Pedestrian Control Plan (Buhman), Traffic Control and Pedestrian Control Plan (Partrick), Traffic Control and Pedestrian Control Plan (West Lincoln), Traffic Control and Pedestrian Control Plan (Redwood), and Traffic Control and Pedestrian Control Plan (East Imola) 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.

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 (Buhman), Traffic Control and Pedestrian Control Plan (Partrick), Traffic Control and Pedestrian Control Plan (West Lincoln), Traffic Control and Pedestrian Control Plan (Redwood), and Traffic Control and Pedestrian Control Plan (East Imola) 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 Removal of Temporary Pavement Delineators

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 temporary pavement delineation, no longer required for traffic, shall be removed to the limits as shown on the plans or as directed by the Engineer, and properly disposed of. The pavement delineation shall be maintained, as long as practical, until the removal is scheduled.

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

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.

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

City Project No. 30230810 Page 7

MEASUREMENT AND PAYMENT – The Contract lump sum price for Remove Temporary Traffic Delineation (Buhman), Remove Temporary Traffic Delineation (Partrick), Remove Temporary Traffic Delineation (West Lincoln), Remove Temporary Traffic Delineation (Redwood), and Remove Temporary Traffic Delineation (East Imola) 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 temporary pavement markers, complete in place, as described in the Contract Documents, as directed by the Engineer, and no additional compensation will be allowed therefor.

Part 3 – Traffic Control Devices

3.01 Pavement Markers

Pavement markers shall conform to the requirements of Section 81-3, “Pavement Markers,” and the section titled, “Prequalified and Tested Signing and Delineation Materials,” of the Special Provisions and these Technical Specifications.

Contractor shall submit certificates of compliance for pavement markers as specified in “Prequalified and Tested Signing and Delineations Materials” of the Special Provisions.

Type DB markers shall be two-way reflective blue markers and shall be placed per the detail shown on the plans. Fire hydrant markers shall be placed six (6) inches from the road centerline towards the fire hydrant.

Type Q (CA) markers shall have three-inch (3”) bands of yellow reflective sheeting on a tubular flexible post per Caltrans Standard Plan A73A. Type Q markers shall be placed in the center of median nose per City of Napa Standard Plan S-31. Median noses shall also include raised pavement markers installed on the top curb, with payment considered incidental to the Pavement Marker (Q) item. Payment for each Pavement Marker (Q) shall include five (5) raised pavement markers. Raised pavement markers shall be double-sided, reflective yellow markers.

Contractor shall remove existing markers and clean the asphalt surface of any residual material, including marker adhesive, in order to install the new markers on a clean surface.

The Contractor shall know and comply with the requirements of “Traffic Control System for Lane Closure” of these Specifications regarding the use of lane closures during placement of pavement markers with bituminous adhesive.

MEASUREMENT AND PAYMENT – The Contract unit price paid for each Pavement Marker (DB) (Buhman), Pavement Marker (Q) (Buhman), Pavement Marker (DB) (Partrick), Pavement Marker (DB) (West Lincoln), Pavement Marker (DB) (Redwood), and Pavement Marker (DB) (East Imola) includes full compensation for providing all labor, materials, tools, equipment, incidentals, and for doing all the work involved in placing pavement markers, 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 Thermoplastic Traffic Stripes and Pavement Markings

All traffic stripes and pavement markings shall be thermoplastic material complying with current CA MUTCD and CALTRANS guidelines.

Work shall conform to the requirements of Section 84-2, “Traffic Stripes and Pavement Markings,” and the section titled, “Prequalified and Tested Signing and Delineation Materials,” of the Standard Specifications and these Specifications.

Contractor shall submit certificates of compliance from the materials suppliers indicating compliance of the materials with the requirements as specified in “Prequalified and Tested Signing and Delineations Materials” of the Special Provisions.

City Project No. 30230810 Page 8

All striping and legends must be cat-tracked prior to placement of thermoplastic. The Contractor shall allow a minimum of three (3) days for the City to review cat-tracking. The Contractor shall notify the Engineer after the cat-tracking is placed. Thermoplastic must not be placed until the Engineer has authorized the cat-tracking alignment and placement details.

MEASUREMENT AND PAYMENT – Striping must be measured by the lineal foot along the line of traffic stripes, including pavement markers incorporated into striping details, without deductions for gaps in broken traffic stripes. A double traffic stripe, consisting of two (2) yellow stripes, will be measured as one (1) traffic stripe. Bike lane buffer markings, median buffer markings, and other diagonal crosshatch markings shall be measured by the lineal foot of individual diagonal stripes installed. Crosswalk, pavement markings, and legends must be measured by the square foot of the actual area covered by thermoplastic material and paid for as Thermoplastic Markings.

The Contract unit price per lineal foot paid for Traffic Striping (Thermoplastic) (Buhman), Traffic Striping (Thermoplastic) (Partrick), Traffic Striping (Thermoplastic) (West Lincoln), Traffic Striping (Thermoplastic) (Redwood), and Traffic Striping (Thermoplastic) (East Imola) and the Contract unit price paid per square foot of Pavement Markings (Thermoplastic) (Buhman), Pavement Markings (Thermoplastic) (Partrick), Pavement Markings (Thermoplastic) (West Lincoln), Pavement Markings (Thermoplastic) (Redwood), and Pavement Markings (Thermoplastic) (East Imola) includes full compensation for providing all labor, materials, tools, equipment, cat-tracking, and incidentals, and for doing all the work involved in painting traffic stripes, crosswalks, pavement markings, and pavement legends, complete in place, as described in the Contract and these Specifications as directed by the Engineer, and no additional compensation will be allowed therefor.

3.03 Green Pavement

Work must conform to the requirements of Section 84-2, “Traffic Stripes and Pavement Markings,” and the section titled, “Prequalified and Tested Signing and Delineation Materials,” of the Standard Specifications and these Specifications.

The Contractor shall provide extended season methyl methacrylate (MMA) resin pavement marking system with hardwearing aggregate and colorfast pigments for delineation of green bike lanes and bike boxes on hot mix asphalt pavement.

Contractor shall submit certificates of compliance from the materials suppliers indicating compliance of the materials with the requirements as specified in “Prequalified and Tested Signing and Delineations Materials” of these Technical Specifications.

All striping and legends must be cat-tracked prior to placement of MMA materials. The Contractor shall notify the Engineer after the cat-tracking is placed. MMA material shall not be placed until the Engineer has authorized the cat-tracking alignment and placement details.

Contractor shall comply with manufacturer technical data and installation requirements for MMA colored lane treatment systems.

MMA shall be EF Green in color (or approved equal).

System components shall include MMA resin binder, catalyst (powder or liquid), colorfast green pigments, and hardwearing aggregate. Product shall comply with the criteria of the Technical Data Table provided in the following table:

TECHNICAL DATA

ASTM Testing Results Test Method

Hardness 50-60 Shore D D2240

Elongation > 30% D638 Type 1

No Pick-Up Time at 77°F < 30 minutes D711

Density 18.5 +/- 0.5 lbs/gallon D1475

City Project No. 30230810 Page 9

Viscosity 85-105 Krebs 2195-99

Total Solids > 99% D2369

Pot Life < 15 minutes AASHTO T-237

VOC < 100 grams/liter D3960-05

Skid > BPN E303

Water Absorption < 0.25% D570

Contractor shall store materials in a dry protected area between temperatures of 40°F-80°F.

Material shall be kept out of direct sunlight and away from open flames.

Contractor shall clean asphalt surfaces to remove dust, oils, curing compounds, debris, and contaminants to ensure a dry surface prior to application of the MMA material.

Contractor shall apply MMA resin at manufacturer recommended coverage rates. Contractor shall broadcast aggregate to achieve anti-skid surface and uniform green color. Contractor shall apply the product using a medium nap paint roller or paint sprayer capable of 98:2 mix ratio by weight of resin to catalyst. Contractor shall mix the products with a high speed, high torque drill with paint mixing paddle capable of thoroughly mixing the MMA resins, aggregates and catalyst. Contractor shall clean the mixing paddle between batches.

Contractor shall mix the products per the manufacturer’s recommended ratios based on the pavement temperature, provided in the following Materials Mixing Guide Table:

MATERIALS MIXING GUIDE

Component Quantity Unit

Resin 2 (7.6) gallons (liters)

Aggregate 25.7 (11.67) lbs (kg)

Powder Catalyst <80°F (<27°C)

0.52 (0.24) 8 (0.24) lbs (kg) fluid ounces (liter)

Powder Catalyst 80°F to 130°F (27°C to 54°C)

0.26 (0.12) 4 (0.12) lbs (kg) fluid ounces (liter)

Powder Catalyst 130°F to 150°F (54°C to 65°C)

0.24 (0.108)

3.5 (0.10) lbs (kg) fluid ounces (liter)

Contractor shall allow rapid cure prior to opening to traffic per manufacturer guidance and ambient temperature conditions. MMA colored lane treatment shall be 100% cured, which will be hardened, solid state, before traffic is permitted on the surface. Curing typically takes 30-60 minutes and is based on the temperature and amount of catalyst used.

MEASUREMENT AND PAYMENT – The Contract unit price per square foot of Green MMA Pavement Markings (Buhman), Green MMA Pavement Markings (Partrick), Green MMA Pavement Markings (West Lincoln) and Green MMA Pavement Markings (Redwood) includes full compensation for providing all labor, materials, tools, equipment, cat-tracking, and incidentals, and for doing all the work involved in applying the green MMA pavement markings, complete in place, as described in the Contract and these Specifications, as directed by the Engineer, and no additional compensation will be allowed therefor.

3.04 Painted Curb

City Project No. 30230810 Page 10

Work must conform to the requirements of Section 84-2, “Traffic Stripes and Pavement Markings,” and the section titled, “Prequalified and Tested Signing and Delineation Materials,” of the Standard Specifications and these Specifications.

Contractor shall submit certificates of compliance from the materials suppliers indicating compliance of the materials with the requirements as specified in “Prequalified and Tested Signing and Delineations Materials” of the Special Provisions.

Curbs shall be painted with two (2) coats of traffic-rated paint as shown on the Striping plans.

MEASUREMENT AND PAYMENT – The Contract unit price per linear foot paid of Traffic Striping (Curb - Paint) (Buhman) and Traffic Striping (Curb - Paint) (Partrick) 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.

3.05 Street Signs

Street Sign installations are to comply with City of Napa Standard Detail S-18A.

Street signs include all regulatory, traffic control, school crossing and street name signs. Signage is to comply with current CA MUTCD guidelines and City Standards. The Contractor shall install street signs to new or existing poles using stainless steel hardware as shown and dimensioned on the Signage Plan. Where signs are to be installed on existing poles, the existing signs are to be adjusted or removed as directed by the Engineer at no additional cost.

Stop signs that are removed for construction purposes must be temporarily mounted on stable bases or barricade at the required location until they are ready for permanent placement.

Signs that are proposed to be reused are to be cleaned prior to reinstallation. Signs damaged during removal, storage or transport may be deemed unsatisfactory for reinstallation at the discretion of the Engineer.

After all signs have been installed, an as-built plan showing the exact location of each sign must be submitted to the City for the Signs and Striping Division to be able to GPS locate all signs removed, relocated, or installed during construction. The as-built plan must be completed using colored ink on a clean set of prints of the Contract drawings.

MEASUREMENT AND PAYMENT – The Contract unit price paid for each Street Sign (Buhman), Street Sign (Partrick) and Street Sign (West Lincoln) includes full compensation for furnishing all labor, materials, tool, equipment, and incidentals and for doing all the work involved in installing each traffic sign, including pole extensions and hardware, complete in place, as described in the Contract and these Specifications, as directed by the Engineer, and no additional compensation will be allowed therefor.

3.06 Street Signposts and Foundations

Signposts are to be installed in their permanent location in conformance with City of Napa Standard Detail S-18A. Signposts shall be a continuous pipe long enough to mount all supported signs with a minimum of seven-feet (7.0’) of clearance from the bottom sign to the adjacent pavement.

Signposts shall not obstruct the path of travel along the sidewalk. When surrounded by sidewalk a clear distance of four-feet (4.0’) minimum of paved surface shall be provided to one or both sides of the signpost perpendicular to the path of travel.

Excavations required to install street signposts must be performed by hand methods without the use of power equipment unless it is determined there are no utility facilities within two (2) feet of the excavation of the proposed post holes. Roots should be protected as much as possible during excavation adjacent to existing street trees that are to remain. If roots greater than two (2) inches in diameter are encountered notify the engineer to determine if the post location can be offset clear of the roots.

City Project No. 30230810 Page 11

The Contractor shall notify the appropriate regional notification center for operators of subsurface installations at least two (2) working days, but not more than seven (7) calendar days, prior to commencing excavation for construction area signposts. 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

MEASUREMENT AND PAYMENT – The contract price paid for each Signpost (Buhman), Signpost (Partrick), and Signpost (West Lincoln) includes full compensation for furnishing all labor, materials, tools, equipment, and incidentals for doing all the work required in the installation of the steel post and concrete base, as described in the Contract and these Specifications, as directed by the Engineer, and no additional compensation will be allowed therefor.

City Wide Striping – Phase 2 CITY OF NAPA HOLIDAYS City Project No. 30230810 Page A-1

Appendix A – City of Napa Holiday Calendar(s)

Holiday

New Year’s Day

Birthday of Martin Luther King, Jr.

President’s Day

Cesar Chavez Day

Memorial Day

Independence Day

Labor Day

Indigenous Peoples Day

Veterans Day

Thanksgiving Day

Day after Thanksgiving Day

Christmas Eve Day

Christmas Day

If January 1st, March 31st, July 4th, November 11th, December 24th or December 25th falls on a Sunday, the Monday following is a holiday. If a holiday falls on a Saturday, the preceding Friday is a holiday.

END APPENDIX A – City of Napa Holiday Calendar(s)

City Wide Striping – Phase 2 TEMPORARY TRAFFIC CONTROL GUIDELINES City Project No. 30230810 Page B-1

Appendix B – City of Napa Temporary Traffic Control Guidelines

The following guidelines are to assist in the preparation of Temporary Traffic Control (TTC) Plans for operations within the City of Napa Public Right of Way.

• All devices and conceptual layouts are located in the latest editions of the Work Area Traffic Control Handbook (WATCH), California Temporary Traffic Control Handbook (CATTCH) and the California Edition of the Manual of Uniform Traffic Control Devices (CA MUTCD).

• For Local Residential streets, Typical Applications copied from the WATCH, CATTCH, Caltrans Standard Plans and CA MUTCD may be accepted for review.

• For Commercial, Arterial, complex zones; Site Specific TTC Plans will be required (or anytime requested by Traffic Engineering Staff).

• Typical Plans shall be submitted at least 1-week in advance of proposed operations. Site Specific Plans shall be submitted at least two (2) weeks prior to scheduled operations.

• Plans shall include contractor name, field contact, phone and signature.

• Plans shall include street names for the affected areas.

• Clean, clear and readable maps are key to the efficient review of Traffic Control Plans.

• Plan sheets do not need to be scaled drawings yet shall show: work zones, tapers and signs.

• Show all signs, delineators, flaggers required by the WATCH, CATTCH and CA MUTCD and their general placement.

• Include pedestrian and bicycle TTC typicals or Site Specific design as needed for areas in and around work zones.

• Notifications of other agencies such as VINE transit service, AT&T, PG&E or Wine Train is the responsibility of the contractor.

• Major street lane closures should be scheduled for off-peak traffic or nighttime operations. Traffic Engineering Staff can provide guidance for major streets, volumes and work hours.

• Major street lane closures require 1 arrowboard or vehicle mounted lightbar per lane closed.

• Lane / Road Closures of greater than two (2+) consecutive days require changeable message boards prior to and during scheduled operations.

These are general guidelines in addition to the reference materials for design and device requirements. Any questions and/or clarifications should be directed to:

engineering@cityofnapa.org; or by phone at 707-257-9520 mailto:engineering@cityofnapa.org

City Project No. 30230810 Page B-1

City Project No. 30230810 Page B-2

END APPENDIX B – City of Napa Temporary Traffic Control Guidelines