TABLE OF CONTENTS

County of Napa

SECTION C - TECHNICAL SPECIFICATIONS

REDWOOD RD MPM 5.41

1 Summary Of Work 2 Quality Control 3 Project Meetings 4 Submittal Procedures 5 Measurement And Payment 6 Control Of Materials 7 Construction Surveying 8 Closeout Procedures 9 Coordination Of Work 10 Mobilization 12 Temporary Traffic Control 13 Water Pollution Control 14 Environmental Stewardship 15 Existing Facilities 17 Clearing And Grubbing 19 Earthwork 21 Erosion Control 23 Dewatering 26 Aggregate Bases 39 Asphalt Concrete 51 Concrete Structures 72 Slope Protection 82 Signs And Markers 84 Markings 90 Concrete 100 Attachment ‘A’ – Submittal List

1 SUMMARY OF WORK

PART 1 - GENERAL

1.01 GENERAL

A component in one contract part applies as appearing in each. The plans and specifications parts are complementary, describe, and provide for complete work. The work to be done under the Contract shall comply with all requirements of the Plans and Specifications, the Standard Specifications, and the Standard Plans unless modified in writing by the Engineer. In case of conflict, the stricter or more conservative specification, as determined by the Engineer, shall apply.

The work to be done under the Contract, shall comply with:

A. The project plans (Plans) and Special Provisions (Specifications).

B. State of California Department of Transportation (Caltrans) 2024

C. Caltrans 2024 Standard Specifications (Standard Specifications).

D. Caltrans 2024 Standard Plans, (Standard Plans)

E. Caltrans 2024 Revised Standard Plans last updated January 22, 2024

F. 2020 Napa County Road and Street Standards.

G. Caltrans Highway Design Manual (HDM) 7th edition.

H. Caltrans 2014 CA Manual on Uniform Traffic Control Devices (CAMUTCD), revision 5

I. Napa County Public Works Department (County) standards, specifications, and details.

1.02 SUMMARY OF WORK

The November 2025 storms caused a small landslide that undermined about 33 linear feet of the roadway edge, leaving part of the asphalt unsupported and creating a steep drop down to a private driveway. To ensure the future stability of the road and provide public safety, the project proposes to repair the damage by installing a new rock slope protection (RSP) buttress to stabilize the downhill shoulder of Redwood Road. The RSP is proposed to be constructed at a 1:1 slope, about ten feet high, averaging five feet in thickness. Following installation of the RSP, the damaged road surface will be reconstructed or repaved. Roadway reconstruction will extend about 100 feet.

The work at the site generally consists of:

Mobilization Staging Area Setup Construction Area Signs per CAMUTCD standards and Special Provisions Temporary Traffic Control per CAMUTCD standards and Special Provisions

Installing Rock Slope Protection Fabric Rip-Rap installation per plans and specifications Roadway asphalt pavement.

Utility coordination.

Auxiliary work shown on the plans and as directed by engineer.

All construction activities including any temporary staging shall occur within County right of way unless directed otherwise by the engineer.

Final cleanup Project Closeout

1.03 SEQUENCE AND SCHEDULE REQUIREMENTS

A. The construction is anticipated to begin in September of 2026 to be completed in October of 2026.

B. The Contractor shall schedule and sequence the work so that all earthwork is completed no later than October 30th, of each year.

1.04 DEFINITIONS

A. County: Napa County Public Works Department

B. Engineer: Director of Public Works or his/her designee

C. Scope of Work: the scope of work depicted on the Plans with reference to the Standard Plans, the Standard Specifications, County standards, and these Special Provisions.

1.05 USE OF PROJECT SITE

A. The Contractor shall limit the contractor’s operations to the grading limits shown on the Plans or as approved in writing by the Engineer.

B. Contractor shall submit the construction vehicle and equipment access route(s) to the project site to the Engineer for approval.

C. Staging Area

1. The contractor shall submit a construction staging plan to be approved by the Engineer.

2. The Contractor shall restore the site at the Contractor’s own cost prior to demobilization. Failure to restore the site to the property owner’s satisfaction will result in delay in release of final payments until the issue has been resolved.

3. Staging Area will be allowed within the public Right-of-Way at a location approved by the Engineer.

D. See Section 10 Mobilization of these Special Provisions for further requirements for protection of existing property.

1.06 COORDINATION

A. Coordination of work shall conform to Section 10, “Coordination of Work” of the Special Provisions.

B. The Contractor is responsible for coordinating with utility agencies for utility standby and any utility relocation.

1.07 PERMITS OBTAINED BY THE COUNTY

A. No Permit required.

1.08 PERMITS OBTAINED BY THE CONTRACTOR

A. All other permits as required for Contractor’s Operation

PART 2 – PRODUCTS - NOT USED

PART 3 – EXECUTION - NOT USED

PART 4 – MEASUREMENT AND PAYMENT

A. Full compensation for complying with the provisions of this section shall be considered as included in the contract price for the various bid items, and no separate payment will be made.

2 QUALITY CONTROL

PART 1 – GENERAL

1.01 DESCRIPTION

B. The Contractor is responsible for Quality Control.

C. The Contractor is responsible for the quality of the Work including materials and workmanship performed by the subcontractors.

D. The Contractor will cooperate and coordinate with the County for Quality Assurance testing performed by the County.

E. The County performing Quality Assurance inspections and testing does not relieve the Contractor from the responsibility of performing all Quality Control testing required to deliver a quality project.

F. Quality Control includes all tasks required to deliver a coordinated and complete project that is in compliance with the intent of the Contract Documents.

PART 2 – PRODUCTS - NOT USED

PART 3 – EXECUTION

3.01 SITE INVESTIGATION AND CONTROL

A. The Contractor shall verify all dimensions in the field and shall check all field conditions continuously during construction. The Contractor shall be solely responsible for any inaccuracies built into the Work. The Contractor shall inspect related and appurtenant work and shall report in writing to the Engineer, any conditions which will prevent proper completion of the Work. Any required removal, repair, or replacement caused by unsuitable conditions shall be done by the Contractor at its sole cost and expense.

3.02 INSPECTION OF WORK

A. The Work shall be conducted under the general observation of the Engineer and shall be subject to inspection by the County and other agencies having jurisdiction over the project to assure strict compliance with the requirements of the Contract Documents.

B. The authorized representative of the Engineer on the project site shall be acting directly and through various inspectors at the site. The presence of the inspectors, however, shall not relieve the Contractor of his responsibility for the proper execution of the Work in accordance with all requirements of the contract documents. Compliance is a duty of the Contractor and shall not be avoided by any act or omission on the part of an inspector.

C. All materials and articles furnished by the Contractor shall be subject to inspection. No material or articles shall be used in the Work until it has been inspected and accepted by the Engineer or by the County.

D. Source Inspection: Some material shall be subject to inspection by the Engineer or his authorized representative at the place of production.

E. The presence of the Engineer at the place of production shall not relieve the Contractor of the responsibility for furnishing products, materials, and equipment that comply with all requirements of the contract documents.

3.03 SAMPLING AND TESTING

A. Unless otherwise specified in these Special Provisions all sampling and testing shall be in accordance with the methods prescribed in the current standards of the ASTM or other specified published standards, as applicable to the class and nature of the article or materials considered. The County reserves the right to use any generally accepted system of sampling and testing which, in the opinion of the Engineer, will assure the County that the quality of the workmanship is in full accord with the contract documents.

B. Any waiver by the County of any specific testing or other quality assurance measures, whether or not such waiver is accompanied by a guarantee of substantial performance as a relief from the specified testing or other quality assurance requirements as originally specified, and whether or not such guarantee is accompanied by a "performance bond" to assure execution of any necessary corrective or remedial Work, shall not be construed as a waiver of any prescriptive or performance requirements of the contract documents.

"Performance bond" as used in this section is a separate bond in addition to the Contract Performance Bond required in the General Conditions.

C. Notwithstanding the existence of waiver, and in addition to any testing and inspection performed by any other inspector on behalf of the County or any other public agency having jurisdictions over the project, the Engineer shall have the right to make independent investigations and tests, and failure of any portion of the Work to meet any of the requirements of the contract documents shall be reasonable cause for the Engineer to require the removal or correction and reconstruction of any such work in accordance with the General Conditions.

3.04 TIME OF INSPECTIONS AND TESTS

A. Samples and test specimens required under the contract documents shall be furnished by the Contractor and prepared for testing in time for the completion of the necessary tests and analyses before the subject materials or articles are to be used.

B. The County will perform field compaction testing. The Contractor shall furnish all required test specimens at its own expense. Except as otherwise provided in the contract documents performance of the required initial test will be by the County and all costs will be borne by the County except that the cost of any test (retesting) after the initial test shall be borne by the Contractor. The County performing Quality Assurance testing does not relieve the Contractor from his responsibility of performing all required Quality Control testing to deliver a quality project.

C. The Contractor at the Contractor’s own expense shall perform field testing for utilities that may be affected by the Work. The Contractor shall coordinate and schedule witnessing of field testing with the County and any other agency having jurisdiction over the project. The Contractor shall notify the Engineer no less than 48 hours in advance of beginning field testing.

D. Whenever the Contractor is ready to backfill, bury, cast in concrete, hide, or otherwise cover or make inaccessible any work under the Contract, the Contractor shall notify the Engineer no less than 48 hours in advance of beginning any work of backfilling, burying, casting in concrete, hiding, covering, or making inaccessible any portion of the Work to be inspected so that required inspections can be performed.

E. Failure by the Contractor to notify the Engineer at least 48 hours in advance of any inspection or field testing shall be reasonable cause for the Engineer to require sufficient delay in the Contractor's schedule to allow time for such inspections and any remedial or corrective work required. All costs of such delays, including its impact or effect upon the Work, shall be borne by the Contractor.

3.05 DEFECTIVE AND NONCOMPLIANT WORK

A. Attention is directed to Section 5-1.30 Noncompliant and Unauthorized work and Section 5-1.39 Damage Repair and Restoration of the Standard Specifications

B. Per Section 5-1.30 Noncompliant and Unauthorized work of the Standard Specifications, the contractor shall correct or remove and replace work that does not comply with the Contract at contractor’s cost. County will reduce payment for non-compliant work left in place until the work has been corrected. If the contractor fails to comply promptly with an order under section 5-1.30, the County may correct, remove, or replace noncompliant or unauthorized work. The County will deduct the cost of this work from the contract.

C. Per Section 5-1.39 Damage Repair and Restoration of the Standard Specifications, before Contract acceptance, the contractor shall restore damaged work to the same state of completion as before the damage. The County does not adjust payment for repair or restoration that the Engineer determines was caused by the contractor’s failure to construct the work under the Contract or protect the work.

D. The contractor shall submit a repair or restoration work plan and scheduled for the approval of the Engineer prior to proceeding with work. The submittal must comply with the requirements in Section 4 Submittal Procedures of this Special Provisions.

PART 4 - MEASUREMENT AND PAYMENT

A. Full compensation for complying with the provisions of this section shall be considered as included in the contract price for the various bid items, and no separate payment will be made.

3 PROJECT MEETINGS

1.01 SUMMARY

A. This section includes:

1. Contractor participation in a preconstruction conference.

2. Administration of progress meetings.

1.02 PRECONSTRUCTION CONFERENCES

A. The Engineer will administer a preconstruction conference for the purpose of executing County-Contractor agreements and will provide clarification of County and Contractor responsibilities in the use of the Work site and for review of administrative procedures, contract documents, standards, correspondence, and submittal requirements.

1. Personnel present at this meeting are the Engineer, inspector, design consultants, environmental consultant, quality assurance team, archeologist, County representatives, and representatives of other agencies, the Contractor, job superintendent, and the major subcontractors and their foremen or superintendents who will be working on the site.

2. The Contractor shall be prepared to discuss timing, procedures for smooth job progress, items requiring clarification, distribution of documents, and correspondence with the Engineer and other County representatives.

1.03 PROGRESS MEETINGS

A. The Engineer shall schedule and administer project meetings throughout progress of the Work at weekly intervals and other meetings as needed throughout construction.

1. The Engineer shall prepare an agenda with copies for participants and record minutes and distribute copies within three (3) days to the Contractor, and to the project team. Those affected by decisions made at the meetings may also be notified.

2. Attendance: Contractor's job superintendent, major subcontractors and suppliers, design consultants, environmental consultant, quality assurance team, archeologist, other representatives of the County and other agencies as appropriate to address topics for each meeting.

3. Suggested Agenda: Review of Work progress, status of progress schedule and adjustments, material order and delivery schedules, submittals, maintenance of quality standards, pending changes and substitutions, and other items affecting progress of the Work.

B. The Engineer shall prepare and distribute meeting minutes to the project team and other attendees as requested following each meeting after the minutes have been reviewed and approved by the Engineer. Meeting minutes shall include a running list of action items for the Contractor. The contents of minutes do not constitute a part of the contract documents.

Contract requirements can only be amended by change order.

1.04 ENVIRONMENTAL EDUCATION MEETINGS

A. Each time workers and/or subcontractors come onto the jobsite for the first time the Contractor shall convene a meeting prior to them commencing any work.

B. Required attendance includes jobsite superintendents, foremen, and workers.

C. Discussions shall include wildlife identification and permit requirements for environmental protection.

PART 2 – PRODUCTS - NOT USED

PART 3 – EXECUTION - NOT USED

PART 4 - MEASUREMENT AND PAYMENT

A. Full compensation for complying with the provisions of this section shall be considered as

4 SUBMITTAL PROCEDURES

1.01 SUMMARY

A. This section includes: Administrative and procedural requirements for submitting shop drawings, product data, samples, and other submittals.

1.02 DEFINITIONS

A. Action Submittals: Written and graphic information that requires the Engineer’s responsive action.

B. Informational Submittals: Written information that does not require the Engineer’s responsive action. Submittals may be rejected for not complying with requirements.

1.03 SUBMITTAL PROCEDURES

A. General:

1. The minimum required submittals are included in Attachment A

2. The Contractor shall submit six (6) sets of each required submittal

3. Electronic copies of CAD Drawings of the contract drawings will be provided by the Engineer for the Contractor's use in preparing submittals upon the Contractor’s written request.

B. Coordination: The Contractor shall coordinate preparation and processing of submittals with the performance of construction activities.

1. Coordinate each submittal with fabrication, purchasing, testing, delivery, other submittals, and related activities that require sequential activity.

2. Coordinate transmittal of different types of submittals for related parts of the Work so processing will not be delayed because of need to review submittals concurrently for coordination.

3. The Engineer reserves the right to withhold action on a submittal requiring coordination with other submittals until related submittals are received.

4. The Contractor shall be responsible for the timely submittal of all project submittals including project submittals for work to be done by subcontractors. The Contractor shall not be entitled to project delays resulting from late, inaccurate, or incomplete submittals.

C. Submittals Schedule: The Contractor shall comply with the construction schedule for time requirements for scheduled performance of related construction activities.

D. Processing Time: Allow enough time for submittal review, including time for resubmittals, as follows: Time for review shall commence on the Engineer's receipt of the submittal. No extension of the contract time will be authorized because of failure to transmit submittals enough in advance of the Work to permit processing, including resubmittals.

1. Initial Review: Allow five (5) days for initial review of each submittal. Allow additional time if coordination with subsequent submittals is required. The Engineer will advise the Contractor when a submittal being processed must be delayed for coordination.

2. Intermediate Review: If an intermediate submittal is necessary process it in same manner as an initial submittal.

3. Resubmittal Review: Allow five (5) days for review of each resubmittal.

E. Identification: Affix a permanent label or title block on each submittal for identification.

1. Indicate the name of the firm or the entity that prepared each submittal on label or title block.

2. Provide a space approximately 6 inches by 8 inches on the label or adjacent to the title block to record the Contractor's review and approval markings and actions taken by the Engineer.

3. Include the following information on label for processing and recording action taken:

a. Project name.

b. Date.

c. Name and address of the Engineer.

d. Name and address of the Contractor.

e. Name and address of subcontractor.

f. Name and address of supplier.

g. Name of manufacturer.

h. Submittal number or other unique identifier, including revision identifier.

Submittal number shall use Standard Specification section number followed by a decimal point and then a sequential number (e.g., 06100.01). Resubmittals shall include an alphabetic suffix after another decimal point (e.g., 06100.01.A).

i. Number and title of appropriate Standard Specification section.

j. Drawing number and detail references, as appropriate.

k. Location(s) where product is to be installed, as appropriate.

l. Other necessary identification.

F. Deviations: Highlight, encircle, or otherwise specifically identify deviations from the contract documents on submittals.

G. Additional Copies: Unless additional copies are required for final submittal, and unless the Engineer observes noncompliance with provisions in the contract documents, initial submittal may serve as final submittal.

H. Transmittal: Package each submittal individually and appropriately for transmittal and handling and submit directly to the Engineer. Transmit each submittal using a transmittal form.

1. Transmittal Form: Use standardized form approved by the Engineer.

2. On an attached separate sheet, prepared on the Contractor's letterhead, record relevant information, requests for data, revisions other than those requested by the Engineer on previous submittals, and deviations from requirements in the contract documents, including minor variations and limitations. Include the same label information as is affixed to the related submittal.

I. Resubmittals: Make resubmittals in same the form and number of copies as the initial submittal.

1. Note date and content of previous submittal.

2. Note date and content of revision in label or title block and clearly indicate extent of revision.

3. Resubmit submittals until they are marked "Approved", or "Approved as Noted".

J. Distribution: Furnish copies of final submittals to manufacturers, subcontractors, suppliers, fabricators, and installers, authorities having jurisdiction, and others as necessary for performance of construction activities. Show distribution on transmittal forms.

K. Use for Construction: Use only final submittals with mark indicating approval by the Engineer.

PART 2 - PRODUCTS

2.01 ACTION SUBMITTALS

A. General: Prepare and submit action submittals required by individual Standard Specification sections.

B. Product Data: Collect information into a single submittal for each element of construction and type of product or equipment.

1. If information must be specially prepared for submittal because standard printed data are not suitable for use, submit as Shop Drawings, not as Product Data.

2. Mark each copy of each submittal to show which products and options are applicable.

3. Include the following information, as applicable:

a. Manufacturer's written recommendations.

b. Manufacturer's product specifications.

c. Manufacturer's installation instructions.

d. Standard color charts.

e. Manufacturer's catalog cuts.

f. Mill reports.

g. Standard product operation and maintenance manuals.

h. Compliance with specified referenced standards.

i. Testing by recognized testing agency.

j. Application of testing agency labels and seals.

k. Notation of coordination requirements.

4. Submit product data before or concurrent with samples.

5. Number of Copies: Submit six (6) copies of product data or via email, unless otherwise indicated. The Engineer will return two (2) copies to the Contractor.

Mark up and retain one (1) returned copy as a project record document.

C. Shop Drawings: Prepare project-specific information, drawn accurately to scale.

1. Preparation: Fully illustrate requirements in the contract documents. Include the following information, as applicable:

a. Dimensions.

b. Identification of products.

c. Fabrication and installation drawings.

d. Roughing-in and setting diagrams.

e. Schedules.

f. Design calculations.

g. Compliance with specified standards.

h. Notation of coordination requirements.

i. Notation of dimensions established by field measurement.

j. Seal and signature of professional engineer if specified.

2. Sheet Size: Except for templates, patterns, and similar full-size drawings, submit shop drawings on sheets at least 8-1/2 inches by 11 inches but no larger than 30 inches by 40 inches.

3. Number of Copies: Submit six (6) opaque (bond) copies of each submittal or via email unless otherwise indicated. The Engineer will return two (2) copies to the Contractor. Mark up and retain one (1) returned copy as a project record document.

D. Subcontract List: Prepare a written summary identifying individuals or firms proposed for each portion of the Work, including those who are to furnish products or equipment fabricated to a special design. Include the following information in tabular form:

1. Name, address, and telephone number of entity performing subcontract or supplying products.

2. Number and title of related Standard Specification section(s) covered by subcontract.

3. Drawing number and detail references, as appropriate, covered by subcontract.

4. Number of Copies: Submit three (3) copies of subcontractor list or via email, unless otherwise indicated. The Engineer will return two (2) copies to the Contractor.

Mark up and retain one (1) returned copy as a project record document.

2.02 INFORMATIONAL SUBMITTALS

A. General: Prepare and submit informational submittals required by Standard Specification sections.

1. Number of Copies: Submit three (3) copies of each submittal or via email unless otherwise indicated. The Engineer will not return the copies.

2. Certificates and Certifications: Provide a notarized statement that includes signature of entity responsible for preparing certification. Certificates and certifications shall be signed by an officer or other individual authorized to sign documents on behalf of that entity.

3. Test and Inspection Reports: Comply with requirements specified in Standard Specification Section 6 – Control of Materials.

B. Contractor's Construction Schedule: Comply with requirements specified in the General Conditions.

C. Qualification Data: Prepare written information that demonstrates the capabilities and the experience of firms and persons. Include lists of completed projects with project names and addresses, names and addresses of engineers and owners, and other information specified.

D. Welding Certificates: Prepare written certification that welding procedures and personnel comply with requirements in the contract documents. Submit record of Welding Procedure Specification (WPS) and Procedure Qualification Record (PQR) on AWS forms. Include names of firms and personnel certified.

E. Product and Material Certificates: Prepare written statements on manufacturer's letterhead certifying that product or material complies with requirements in the contract documents.

F. Material Test Reports: Prepare reports written by a qualified testing agency, on testing agency's standard form, indicating and interpreting test results of material for compliance with requirements in the contract documents.

G. Schedule of values: Prepare a schedule of values breakdown for all lump sum items of work and submit it at the pre-construction meeting.

PART 3 - EXECUTION

3.01 CONTRACTOR'S REVIEW

A. Review each submittal and check for coordination with other Work of the contract and for compliance with the contract documents. Note corrections and field dimensions. Mark with approval stamp before submitting to the Engineer.

1. Approval Stamp: Stamp each submittal with a uniform, approval stamp. Include Project name and location, submittal number, Specification Section title and number, name of reviewer, date of the Contractor's approval, and statement certifying that submittal has been reviewed, checked, and approved for compliance with the contract documents.

3.02 ENGINEER’S ACTION

A. General: The Engineer will not review submittals that do not bear the Contractor's approval stamp and will return them without action.

B. Action Submittals: The Engineer will review each submittal, make marks to indicate corrections or modifications required, and return it. The Engineer will stamp each submittal with an action stamp and will mark the stamp appropriately to indicate action taken.

C. Informational Submittals: The Engineer will review each submittal and will return it if it does not comply with requirements. If the submittal does meet the requirements the submittal will not be returned. The Engineer will forward each submittal to an appropriate party.

D. Partial submittals are not acceptable, will be considered nonresponsive, and will be returned without review.

E. Submittals not required by the contract documents may not be reviewed and may be discarded.

PART 4 - MEASUREMENT AND PAYMENT

A. Full compensation for complying with the provisions of this section shall be considered as

5 MEASUREMENT AND PAYMENT

1.01 GENERAL

A. Unless otherwise specified in other individual sections of these specifications, quantities of work shall be determined from measurements or dimensions in horizontal planes.

B. Units of measurement shall be in accordance with U.S. Standard Measures.

C. See the Special Provisions related to progress payments and payment schedule to the contractor.

1.02 PAYMENT PROVISIONS

The contractor shall provide unit price information on the Unit Price Bid Summary Sheet.

PART 2 - MATERIALS

2.01 The measurement and payment items are listed below:

The payments to the Contractor are based on the following items. It is the intent that the scope of the description of the following items encompasses the entire scope of the work as shown on the plans and described in the specifications. The bid amounts shall be for complete in place installations.

The Contractor is reminded that written permission to dispose of any material must be obtained and delivered to the Engineer in advance of any disposal activities. Failure to do so shall result in the contractor accepting all liabilities for the material.

BASE BID ITEMS

A. GENERAL CONDITION

Item 1: Mobilization Bonds, Insurance, etc…- Measurement for this item shall be on a lump sum basis and covers the cost for the contractor to mobilize, obtain bonds and insurance and also complete work shown on the plans but not covered by the other bid items in this section.

Item 2: Clearing And Grubbing - Measurement for this item shall be on a lump sum basis. This work covers all contractor costs for materials, tools, equipment and labor needed, and incidentals including temporary traffic signals and for performing all the work involved as shown on the Plans and as specified in these Special Provisions, the Standard Specifications, and as directed by the Engineer and no additional compensation will be allowed.

Item 3: Traffic Control - Measurement for this item shall be on a lump sum basis. This work covers all contractor costs for materials, tools, equipment and labor needed, and incidentals including temporary traffic signals and for performing all the work involved as shown on the Plans and as specified in these Special Provisions, the Standard Specifications, and as directed by the Engineer and no additional compensation will be allowed.

B. ROADWAY EXCAVATION AND MISC ITEMS

Item 4F: Roadway Excavation - Pavement Removal and Disposal - The contract price paid per cubic yard for “Roadway Excavation and Grading- Pavement Removal and Disposal” shall include full compensation for furnishing all labor, materials, tools, equipment, and incidentals, and for doing all the work, as shown on the plans, as specified in the Standard Specifications, these Special Provisions, and as directed by the Engineer.

Item 5: Sawcut - The contract price per linear foot paid for “Sawcut” shall include full compensation for furnishing all labor, materials, tools, equipment and incidentals, and for doing all the work as specified in this Special Provisions, as shown on the plans and as directed by the Engineer and no additional compensation will be allowed.

Item 6: Hot Mix Asphalt (Type A) - The contract price per ton paid for “Hot Mix Asphalt (Type A)” shall include full compensation for furnishing all labor, materials, tools, equipment and incidentals, and for doing all the work as specified in this Special Provisions, as shown on the plans and as directed by the Engineer and no additional compensation will be allowed.

Item 7: Class 2 Aggregate Base - The contract price paid per cubic yard for “Class 2 Aggregate Base” shall include full compensation for furnishing all labor, materials, tools, equipment, and incidentals and for performing all the work involved as shown on the plans and as specified in these Special Provisions, the Standard Specifications, and as directed by the Engineer and no additional compensation will be allowed. Tack Coat will be included in the cost of “Hot Mix Asphalt Type A” and no additional compensation will be allowed.

Item 8 : Rip-Rap (Class V or VI) - The contract price paid per cubic yard for “Rip-Rap (Class 3)” shall include full compensation for furnishing all labor, materials, tools, equipment, and incidentals, and for doing all the work, as shown on the plans, as specified in the Standard Specifications, these Special Provisions, and as directed by the Engineer.

Item 9: Rock Slope Protection Fabric (Class 8)- The contract price per square foot paid for “Rock Slope Protection Fabric (Class 8)” shall include full compensation for furnishing all labor, materials, tools, equipment, and incidentals and for performing all the work involved as shown on the Plans and as specified in these Special Provisions, the Standard Specifications, and as directed by the Engineer and no additional compensation will be allowed.

Item 10: Asphalt Ditch- The contract price per square foot paid for “Asphalt Ditch” shall include full compensation for furnishing all labor, materials, tools, equipment, and incidentals and for performing all the work involved as shown on the Plans and as specified in these Special Provisions, the Standard Specifications, and as directed by the Engineer and no additional compensation will be allowed

6 CONTROL OF MATERIALS

PART 1 - GENERAL

1.01 SUMMARY

A. The section includes: Requirements for installation, maintenance, and removal of temporary utilities, facilities, controls, construction signs, traffic control and construction aids during construction.

1.02 TEMPORARY UTILITIES

A. General: The Contractor shall provide all necessary temporary utilities required during construction, including all necessary temporary meters, equipment, wiring, piping, fixtures, and connections. The Contractor shall remove the same when they are no longer necessary and at the completion of the Project.

1.03 CONSTRUCTION FACILITIES

A. Contractor's Field Office: At the Contractor’s option, the Contractor may provide and maintain a temporary job office on the site for the Contractor's use. The location of the office shall not interfere with the Work nor with traffic on public roadways.

B. Temporary Storage for Tools, Materials, and Equipment: It is the Contractor’s responsibility to provide temporary storage sheds or other enclosed temporary structures as required or as deemed necessary by the Contractor to protect material and equipment stored on site. The Contractor shall remove the same when they are no longer necessary and at the completion of Work.

C. Temporary Sanitary Facilities: It is the Contractor’s responsibility to provide and maintain adequate toilets, washing facilities, and drinking facilities for workers. Such items shall comply with all governing health and sanitation requirements. The Contractor shall remove the same at the completion of the Work.

1.04 TRAFFIC CONTROL, TEMPORARY BARRIERS AND ENCLOSURES

A. General Protection: Provide all temporary barricades, fences, caution signs, and warning lights as required for the safety of persons. Operate warning lights during hours from dusk to dawn each day. Take whatever care is necessary to avoid damage to adjacent buildings and property, public rights-of-way, and facilities or utilities to remain, whether on the Work site or adjacent to it, and be liable for any damage thereto or interruption of service due to Contractor's operations.

B. Temporary Fences and Barricades: Provide and maintain all temporary site fences, tree protection fencing, and barricades as required for the Work, and remove the same upon the completion of the Work.

C. Temporary Signal shall conform to Section 12, “Temporary Traffic Control” of the Standard Specifications and these Special Provisions.

D. Prior to start of work the Contractor shall submit Traffic Control Plans for all project phases for the Engineer’s review and approval. Plans shall include all necessary measures to control public traffic and construction traffic entering, exiting, and traveling adjacent to the Work site.

E. No road closure is allowed at any time.

F. Contractor shall keep access to all private properties at all times.

1.05 SITE MAINTENANCE

A. Cleaning During Construction:

1. Control accumulation of waste materials and rubbish; periodically dispose of legally off-site.

2. Clean interior areas prior to the start of finish work, maintain areas free of dust and other contaminants during finishing operations.

1.06 PROJECT IDENTIFICATION

A. Project Signs: Provide a project job sign, maximum 30 square feet in size, of wood painted with lettering by a professional sign painter. The content of the sign will be determined by the County. Obtain approval for location of the sign from the County before installing.

Remove the sign on completion of the Work and dispose of legally off the site. Allow no other signs to be displayed.

B. Provide information signs located at highway 29 and highway 12. Provide CMS Board at Highway 29 and Highway 12 to show the work schedule to open and close and work time.

1.07 REMOVAL

A. Remove temporary facilities, fencing, materials, equipment, services, and construction prior to Substantial Completion inspection.

B. Clean and repair damage caused by installation or use of temporary facilities. Remove temporary underground lines and installations; grade site as indicated on the Plans. Restore existing facilities used during construction to the original condition when first installed unless specified otherwise by the Engineer.

PART 2 - PRODUCTS

2.01 MATERIALS

A. Temporary materials and equipment may be new or used but shall be adequate in capacity for the required usage, shall not create unsafe conditions, and shall not violate requirements of applicable codes and standards.

B. Hazardous or Flammable Chemicals: Use and store hazardous or flammable chemical liquids or gases brought into the Project site in acceptable containers conforming to requirements of OSHA. Use such materials in a manner that will prevent their accidental release into other areas. Do not discard such materials on the jobsite. Remove empty containers from the Work sites immediately and dispose of them in the proper manner.

PART 3 – EXECUTION - NOT USED

PART 4 - MEASUREMENT AND PAYMENT

A. Full compensation for complying with the provisions of this section shall be considered as

7 CONSTRUCTION SURVEYING

PART I - GENERAL

1.01 DESCRIPTION

A. This section describes the lines, grades, and survey control to be established and maintained by the Contractor, and also describes the survey requirements to be performed by the Contractor.

B. The Contractor shall furnish all labor, equipment and materials necessary to provide construction surveying and staking for the project as shown on the contract documents.

C. All surveying shall be done by, or under the direction of, a land surveyor licensed in the State of California.

D. It is the Contractor’s responsibility to verify the accuracy of all survey controls and stakes set in the field. Provide immediate notification of apparent errors in the initial staking or in the furnished data.

E. Preserve all initial reference and control points. After beginning construction replace all destroyed or disturbed initial reference or control points necessary to the work.

F. Before surveying or staking discuss and coordinate with the Engineer.

G. Include staking activities in the construction schedule submitted. Include the dates and sequence of each staking activity.

H. The County, at its discretion, may perform random survey verification for the project. The Contractor shall give the County 48 hours notice prior to setting controls and stakes in the field. Once controls and stakes are set in the field the Contractor shall give the County 48 hours notice to perform survey verification.

I. The County’s survey verification of the project shall not relieve the Contractor of the responsibility for the proper execution of the Work in accordance with all requirements of the contract documents. Compliance is a duty of the Contractor and shall not be avoided by acts or omissions by the County.

1.02 STAKING OUT OF WORK

A. Lines and Grades: The Contractor is responsible for providing all staking and surveying needed to achieve all lines, grades and dimensions shown on Plans. Stakes and markers shall be provided as necessary to control the work and assure construction is in conformance with the contract documents and as otherwise directed by the Engineer. The Contractor shall anticipate the site conditions (e.g. wetlands, vandalism etc.) when developing its approach to maintaining construction staking.

B. Equipment and Personnel: The Contractor's instruments and other survey equipment shall be accurate, suitable for the surveys required in accordance with recognized professional standards, and in proper condition and adjustment at all times. Surveys shall be performed under the direct supervision of a land surveyor licensed in the State of California.

C. The Contractor shall use established survey benchmark data as shown on the Plans to layout the Work.

D. Use by Owner: The County may use line and grade points and markers established by the Contractor. The Contractor's surveys are a part of the Work and may be checked by the County. The Contractor shall be responsible for any lines, grades, or measurements which do not comply with specified or proper tolerances, or which are otherwise defective, and for any resultant defects in the work. The Contractor will be required to conduct resurveys or check surveys to correct errors indicated by review of the field notebooks.

E. Surveys for Layout and Performance: The Contractor shall perform all surveys for layout and performance of the work, shall reduce the field notes, and make all calculations and drawings necessary to carry out such work.

F. When the specifications or the Engineer requires Bid Schedule items of work to be measured by surveying methods, the Contractor shall perform the surveys. All such surveys, including control surveys for establishing the measurement reference lines, shall be performed in the presence of the County. The County may independently reduce the field notes and calculate quantities to verify the Contractor’s payment request. The County reserves the right to conduct an independent survey to determine quantities. The cost of the independent survey will be at the County’s expense.

1.03 GENERAL SURVEY REQUIREMENTS

A. The following requirements apply to surveys performed by the Contractor.

1. Licensed Surveyor: All surveys, computations and supporting drawings shall be prepared at the Contractor's expense by a Licensed Surveyor in the State of California.

2. For survey transects, elevations shall be taken at breaks in slope and at intervals not greater than ten (10) feet. Elevations shall extend at least ten (10) feet beyond the limits of earthwork (excavation and fill). Surveyed grade points shall be converted to elevations relative to NAVD 88 and shall be provided to the nearest one-tenth (1/10) of a foot. Survey transects shall be taken at locations that are representative of existing grade.

3. Survey sections shall be taken at the minimum intervals as stated below. The interval between sections may be reduced if, through surveys, earthwork is consistently found to be out of compliance with design requirements.

4. Subsequent surveys shall re-occupy the same lines so the surveys and quantities can be compared.

PART 2 – PRODUCTS - NOT USED

PART 3 – EXECUTION

3.01 CONSTRUCTION SURVEYING AND STAKING REQUIREMENTS

A. Perform all survey, staking, recording of data, and calculations as necessary to construct the project from the initial layout to final completion. Reset stakes as many times as necessary to construct the work.

B. Before surveying or staking, discuss and coordinate the following with the Engineer.

1. Surveying and staking methods

2. Stake marking

3. Grade control for courses of material

4. Referencing

5. Structure control

6. Any other procedures and controls necessary for the work.

C. Perform all surveying, staking, and recording of data essential for establishing the layout and control of the following, as applicable:

1. Roadway alignment, profile and superelevations

2. Curb and dike

3. Guardrail

4. Signs, delineators, and object markers; and pavement markings.

5. Limits of grading and excavations

6. Grade beams and piles

7. Slope

8. Storm drain culverts, miscellaneous drainage facilities and ditches

9. Other features and limits of work to control and complete the Work

D. Control work for construction staking: The Construction Surveyor shall set horizontal and vertical control points to complete the construction staking. Prior to any construction staking, existing survey monuments and pipes shown on the plans shall be surveyed to verify the distances and basis of bearings shown.

1. Survey and establish controls within the tolerances shown in Table 1 in these Special Provisions.

2. Prepare field notes in an approved format. Furnish all survey notes at least weekly.

All field notes and supporting documentation become the property of the County upon completion of the work.

3. Start work only after staking for the affected work is accepted.

4. The construction survey and staking work may be spot-checked for accuracy, and unacceptable portions of work may be rejected. Resurvey rejected work, and correct work that is not within the tolerances specified in Table 1.

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

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

E. 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 and elevations for the relocated points before the initial points are disturbed

F. Clearing and Grubbing Stakes. Clearing and grubbing stakes will be set prior to the beginning of construction work. The boundary of the area(s) to be cleared and grubbed shall be staked or flagged at a maximum interval of 200 feet, closer if needed, to clearly mark the limits of work. Set clearing and grubbing limits on both sides of centerline at roadway cross-section locations.

G. Rough Grade Stakes. Cuts and fills will be given to the nearest tenth (0.1) of a foot.

Horizontal location will be given to the nearest tenth (0.10) of a foot.

1. Slope Stakes. Slope stakes will be set at five (5) foot offsets to the toe-of-slope, at angle points, and at midpoints when the horizontal distance exceeds sixty (60) feet.

The cut or fill, and the horizontal distance to hinge point, will be given for each slope.

2. Daylight Stakes. Where design grade intersects natural grade and does not constitute a slope, a daylight stake will be set at approximately fifty (50) foot intervals.

3. Grade beams. Stakes for grade beams will be set five (5) feet from the face of wall, on approximately twenty-five (25) foot intervals unless otherwise specified by the Engineer. The stakes will be marked with an offset and a cut or fill to the design top of wall grade.

4. Curbs. Rough grade stakes for curbs will be set three (3) feet from the face of curb;

ten (10) feet in areas with sidewalk, on approximately fifty (50) foot intervals on straight sections, twenty-five (25) foot intervals on curves and at grade breaks.

Stakes will be marked with a cut or fill to the top of curb.

H. Finish Grade Stakes. Cuts or fills will be given to the nearest hundredth (0.01) of a foot.

Set grade finishing stakes, for grade elevations and horizontal alignment, on centerline and on each shoulder at roadway cross-section locations. Set stakes at the top of subgrade and the top of each aggregate course. Set stakes in all ditches to be paved. The maximum longitudinal spacing between stakes is twenty-five (25) feet when the centerline curve radius is less than or equal to five hundred (500) feet. When the centerline curve radius is greater than five hundred (500) feet, the maximum longitudinal spacing between stakes is fifty (50) feet. The maximum transverse spacing between stakes is twenty (20) feet. Use brushes or guard stakes at each stake.

1. Roadway cross-sections. Take roadway cross-sections normal to centerline. When the centerline curve radius is less than or equal to 500 feet, take cross-sections at a maximum centerline spacing of 25 feet. When the centerline curve radius is greater than 500 feet, take cross-sections at a maximum centerline spacing of 50 feet. Take additional cross-sections at significant breaks in topography and at changes in the typical section. Along each cross-section, measure and record points at breaks in topography, but no further apart than 20 feet. Measure and record points to at least the anticipated slope stake and reference locations. Reduce all cross-section distances to horizontal distances from centerline.

2. Centerline re-establishment. Reestablish centerline from instrument control points.

The maximum spacing between centerline points is 25 feet when the centerline curve radius is less than or equal to 500 feet. When the centerline curve radius is greater than 500 feet, the maximum distance between centerline points is 50 feet.

3. Grade beams. Survey and record profile measurements along the face of the proposed wall and 5 feet in front of the wall face. Every 25 feet along the length of the wall and at all major breaks in terrain take cross-sections within the limits shown on the plans.