4549_-_Project_Specifications_-_Bid_Set.pdf

COUNTY OF SACRAMENTO

COMMUNUTY SERVICES AGENCY

DEPARTMENT OF WATER RESOURCES

CONTRACT NO. 4549

LLANO LANE

STORM DRAIN IMPROVEMENT

PROJECT SPECIFICATIONS

BID SET - MARCH 2022

NOTE: The County of Sacramento Standard Construction Specifications dated September 2001 Revised March 2004 Revised January 2008 Revised January 1, 2016 Revised January 1, 2017, Revised February 1, 2017 is hereby made part of these Specifications. A copy of the Standard Construction Specifications may be purchased at the cashier’s window in Room 105 of the County Administration Building, 827 Seventh St, Sacramento, California, and may be viewed and downloaded for no cost at:

http://www.saccountyspecs.net

MICHAEL J. PENROSE, INTERIM DEPUTY COUNTY EXECUTIVE

COMMUNITY SERVICES AGENCY

MICHAEL L. PETERSON, DIRECTOR

DEPARTMENT OF WATER RESOURCES

Page Left Blank Intentionally

LLANO LANE CONTRACT NO. 4549

STORM DRAIN IMPROVEMENT PROJECT

TOC-1

TABLE OF CONTENTS

PART 1 SPECIAL PROVISIONS

SP-01 SPECIFICATIONS

SP-02 OTHER WORK

SP-03 BID PROPOSAL

SP-04 PREPARATION AND SUBMISSION OF BIDS

SP-05 EXAMINATIONS OF PLANS, SPECIFICATIONS AND SITE OF WORK

SP-06 SUBCONTRACTORS

SP-07 ADDENDA AND INTERPRETATION OF CONTRACT DOCUMENTS

SP-08 BID GUARANTEE

SP-09 WITHDRAWAL OF BID

SP-10 PUBLIC OPENING OF BIDS

SP-11 DISQUALIFICATION OF BIDDERS

SP-12 GENERAL LIABILITY

SP-13 BUILDER'S RISK INSURANCE

SP-14 CONTRACTOR'S POLLUTION LIABILITY INSURANCE

SP-15 SUBSTITUTIONS

SP-16 COMPACTION TESTS

SP-17 EXISTING UTILITIES

SP-18 BEGINNING OF WORK

SP-19 UNUSUAL SITE CONDITIONS

SP-20 TIME OF COMPLETION

SP-21 FINAL INSPECTION AND FIELD ACCEPTANCE

SP-22 LIQUIDATED DAMAGES

SP-23 EROSION, SEDIMENT, AND WATER POLLUTION CONTROL

SP-24 SANITARY REGULATIONS

SP-25 PRECONSTRUCTION PHOTOGRAPHS

SP-26 TRAFFIC REQUIREMENTS

SP-27 CONSTRUCTION SITE SIGN

SP-28 TEMPORARY BRIDGING OF EXCAVATIONS AND TRENCHES

SP-29 PROTECTION OF IMPROVEMENTS

SP-30 TRENCH SHORING AND BRACING

SP-31 SLURRY SEAL

SP-32 TEMPORARY PAVING

SP-33 DISPOSAL OF EXCAVATED MATERIAL

SP-34 WATER USED IN CONSTRUCTION

SP-35 DUST CONTROL

SP-36 TRENCH BACKFILL AND BASE MATERIAL

SP-37 ASPHALT CONCRETE

SP-38 DROP INLETS AND CATCH BASINS

SP-39 TESTING OF SYSTEM

SP-40 TELEVISION INSPECTION

SP-41 MANHOLES

SECTION TITLE PAGE

TOC-2

TABLE OF CONTENTS

SP-42 SURVEY MONUMENTS

SP-43 CONCRETE

SP-44 REINFORCED CONCRETE PIPE, DRAINAGE (RCPD)

SP-45 POLYVINYL CHLORIDE PIPE (PVC)

SP-46 POLYPROPYLENE PIPE (PP)

SP-47 STANDARD DRAWINGS

PART 2 SPECIAL PROVISIONS DRAWINGS

SD-1 STD DWG 4-64 - TRENCH SECTIONS ...................................................... 2-1

SD-2 STD DWG 9-1 - STORM DRAIN PIPE BEDDING AND INITIAL

BACKFILL ................................................................................................... 2-2

SD-3 STD DWG 9-7A - STANDARD PRECAST CONCRETE DRAINAGE

MANHOLE .................................................................................................. 2-3 SD-4 STD DWG 9-13C - DROP INLET TYPE C .................................................. 2-5 SD-5 STD DWG 9-32.1 - CONSTRUCTION SITE SIGN ..................................... 2-6

SD-6 STD DWG 9-35A.1 - STORMWATER QUALITY DROP INLET

CONCRETE STAMP ................................................................................... 2-7

SD-7 STD DWG 9-35B.1 - STORMWATER QUALITY DROP INLET

CONCRETE STAMP ................................................................................... 2-8

SD-8 STD DWG 9-37 - DROP INLET & CATCH BASIN CONCRETE

COLLAR ...................................................................................................... 2-9

SD-9 STD DWG 308-0 - MONOLITHIC CATCH BASIN CONNECTION ........... 2-10

SD-10 STD DWG LL-01A - LOWER LATERAL.................................................... 2-12

SD-11 STD DWG LL-02A - STANDARD DISTRICT CLEANOUT TO GRADE .... 2-13

SD-12 STD DWG LL-05 - LOWER LATERAL REPLACEMENT .......................... 2-14

PART 3 APPENDICES

APPENDIX A - CEQA DOCUMENT - NOTICE OF EXEMPTION ................................ 3-1

SECTION TITLE PAGE

1-1

SP-01 SPECIFICATIONS

The County of Sacramento Standard Construction Specifications dated September 2001 Revised March 2004 Revised January 2008 Revised January 1, 2016 Revised January 1, 2017 Revised February 1, 2017, these Special Provisions, and the project plans shall control all work to be done under this contract.

Copies of the Standard Construction Specifications may be purchased for $75.00 (tax included) from the County of Sacramento Technical Resources Division, 827 7th Street, Room 105, Sacramento, California 95814, telephone (916) 874-6544, between the hours of 8:30 a.m. and 4:30 p.m. Monday through Friday. For mail orders, there is a postage and handling charge of $12.50 for the first copy and $5.00 for each additional copy. Mail order requests should be sent to County of Sacramento Site Improvement and Permits Section, 827 7th Street, Room 105, Sacramento, CA 95814.

The Specifications can be viewed and downloaded for no cost at:

www.saccountyspecs.net

SP-02 OTHER WORK

All work not mentioned in the Contract Documents but considered necessary and in the scope of the Standard of Practice for the given item of construction technique shall be constructed in accordance with the Standard Construction Specifications, or as directed by the Engineer. Payment for work for which there is not an item on the bid form shall be included in prices bid for other items of work necessary to provide a completed job. No additional compensation shall be made.

SP-03 BID PROPOSAL

In Section 2-1, "Bid Proposal", add the following before the last sentence of the first paragraph:

"Signatures scanned or transmitted electronically shall be deemed original signatures for purposes of the Bid, with such scanned signatures having the same legal effect as original signatures."

Delete the first sentence of the second paragraph and replace them with the following:

"The Bid must be made on the bid proposal form furnished by the Agency as follows:"

SP-04 PREPARATION AND SUBMISSION OF BIDS

In Section 2-2, "Preparation and Submission of Bids", delete the fifth and sixth paragraphs in their entirety and replace them with the following:

http://www.saccountyspecs.net/

1-2

"Bids must be submitted on the Agency's eProcurement system website as indicated in the Notice to Bidders. All Bid pricing, forms, and attachments requested in the online Bid posting must be completed and submitted by the date and time indicated in the Notice to Bidders or subsequent Addendum in order for the Bid to be considered by the Agency. Bidders will receive a confirmation email from the Agency’s eProcurement system providing the date and time that the Bid was received by the Agency’s eProcurement system. Late Bids will not be accepted by the Agency. Bids delivered by hand, fax, telephone, e-mail, or any postal carrier will not be accepted by the Agency."

SP-05 EXAMINATIONS OF PLANS, SPECIFICATIONS AND SITE OF WORK

The Contractor's attention is directed to Sections 2-3 and 2-4 of the Standard Construction Specifications regarding the careful examination of the Work site, plans and specifications. The Contractor shall satisfy itself as to the materials, obstacles and conditions to be encountered, the character, quality and quantity of work to be performed, materials and equipment to be furnished, and all requirements of the plans and specifications.

SP-06 SUBCONTRACTORS

In Section 2-8, "Subcontractos", add the following after the last sentence of the fourth paragraph:

"Bidders must complete all requested fields for each Subcontractor listed on the designation of subcontractors form provided in the Agency's eProcurement system and upload and submit a completed form with their Bid, failure to do so may be cause to reject the Bid."

SP-07 ADDENDA AND INTERPRETATION OF CONTRACT DOCUMENTS

Delete Section 2-9, “Addenda”, in its entirety and replace it with the following:

"The correction of material discrepancies in, or material additions to/omissions from, the Plans, Specifications, or other Contract document, or an interpretation thereof, during the bidding period will be made only by an Addendum issued by the Agency. Addenda will be posted on the Agency's eProcurement system website and available for review by all Bidders. Bidders must acknowledge any and all Addenda before submitting a Bid. Addenda become part of the Contract upon issuance. Interpretations or explanations not included in an Addenda will not be considered binding.

Any explanation desired by bidders regarding the meaning or interpretation of any of the Contract Documents must be requested in writing no later than five (5) working days prior to the bid opening date.”

1-3

SP-08 BID GUARANTEE

In Section 2-11, "Bid Guarantee", add the following to the third paragraph:

"Bidders must upload a copy of their Bid Guarantee and submit it with their Bid in the Agency's eProcurement system. After Bids are opened and the apparent low bidder is identified, the apparent low Bidder must deliver their original Bid Guarantee to the Agency by 4:00 PM the first Monday following Bid Opening, to:

County of Sacramento, Contracts & Purchasing Division, 9660 Ecology Lane, Sacramento, CA 95827."

SP-09 WITHDRAWAL OF BID

Delete Section 2-12, "Withdrawal of Bid", in its entirety and replace it with the following:

"A Bid can be withdrawn prior to the time for the submission of Bids in the Notice to Bidders by canceling or deleting the submitted Bid in the Agency's eProcurement system. The withdrawal of a Bid does not prejudice the right of a Bidder to file a new or revised Bid in accordance with the Notice to Bidders. Bids can be revised in the Agency's eProcurement system prior to the Bid due date and time."

SP-10 PUBLIC OPENING OF BIDS

Delete Section 2-13, "Public Opeining of Bids", in its entirety and replace it with the following:

"Bids will be publicly opened by electronically unsealing the Bids on the Agency's eProcurement system website as indicated in the Notice to Bidders or a subsequent Addendum. Bidders and the public can view Bids received on the Agency's eProcurement system website after the Bid due date and time."

SP-11 DISQUALIFICATION OF BIDDERS

Add the following sentence to Section 2-14, “Rejection of Bids”, of the Standard Construction Specifications:

"Any proposal in which the prices obviously are unbalanced may be rejected".

SP-12 GENERAL LIABILITY

Replace the limits of liability of Section 3-9.01 “General Liability” of the Standard Construction Specifications with:

“Each Occurrence Three Million Dollars ($3,000,0000) Personal & Advertising Injury One Million Dollars ($1,000,0000) Products and Completed Three Million Dollars ($3,000,0000)

1-4

Operations Aggregate Three Million Dollars ($3,000,0000) General Aggregate Three Million Dollars ($3,000,0000)”

SP-13 BUILDER’S RISK INSURANCE

Agency shall procure, maintain, and keep in force at all times during the term of the Contract and until the date of transfer of the insurable interest to and acceptance by the Agency, at the Agency’s sole expense, Builder’s Risk Insurance in accordance with Section 3-9.07, “Builder’s Risk Insurance”, of the Standard Construction Specifications.

SP-14 CONTRACTOR’S POLLUTION LIABILITY INSURANCE

The Contractor must procure, maintain, and keep in force at all times during the term of the Contract, at the Contractor’s sole expense, Contractor’s Pollution Liability (CPL) insurance in accordance with Section 3-9.08, “Contractor’s Pollution Liability Insurance”, of the Standard Construction Specifications. The minimum required insurance limit shall be One Million Dollars ($1,000,000).

SP-15 SUBSTITUTIONS

Change the time limit stated in Section 5-14, “Substitution”, of the Standard Construction Specifications to be twenty-one (21) calendar days and not thirty (30) calendar days.

SP-16 COMPACTION TESTS

The Contractor shall coordinate with the Inspector, per Section 5-16, “Materials Sampling and Testing”, of the Standard Construction Specifications.

The Contractor is required to give one working day advance notice for any requested on-site testing; however, shorter requests may be honored depending on availability of personnel.

SP-17 EXISTING UTILITIES

Location, protection, and relocation of existing utilities shall be completed per Standard Construction Specification 6-11, "Existing Utilities," including potholing of all existing utilities within the work area, particularly water, sewer, and gas. The Engineer shall be notified if the potholes identify any utility conflicts. At a minimum, potholing shall be completed at every location where the proposed improvements cross an existing utility or are within five (5) feet of an existing utility.

The ultimate design of any bypass system, including but not limited to pumping, is the Contractors responsibility.

All costs for this Work shall be included in the prices bid for the items involved.

1-5

CALL U.S.A. BEFORE DIGGING (800) 227-2600.

Or call:

SP-18 BEGINNING OF WORK

Replace the last sentence of Section 7-1, “Beginning of Work”, of the Standard Construction Specifications with the following:

“The counting of Contract Time shall begin thirty (30) Calendar Days from the time the Contractor receives the Contract forms for execution or the first working day of the month of May, whichever occurs later.”

SP-19 UNUSUAL SITE CONDITIONS

If the Contractor suspects or detects unusual site conditions, refer to Section 7-6, “Unusual Site Conditions”, of the Standard Construction Specifications.

SP-20 TIME OF COMPLETION

As set forth in Section 7-15, “Time of Completion”, of the Standard Construction Specifications, the Contract Time for completion of this project shall be forty (40) working days.

SP-21 FINAL INSPECTION AND FIELD ACCEPTANCE

Add the following before the first sentence of Section 7-21.01, “Final Inspection and Field Acceptance”, of the Standard Construction Specifications:

“The final inspection shall not be made unless Record Drawings are received by the Agency in accordance with Section 11-3, “Record Drawings” of this Specification.”

SP-22 LIQUIDATED DAMAGES

As set forth in Section 8-10, “Liquidated Damages for Delay”, of the Standard Construction Specifications, the liquidated damages for this contract shall be the sum of one thousand six hundred thirty-five dollars ($1,635) per calendar day.

SP-23 EROSION, SEDIMENT, AND WATER POLLUTION CONTROL

The Contractor’s attention is directed to Section 10-4, “Erosion, Sediment, and Water Pollution Control,” of the Standard Construction Specifications. The Contractor shall conform to all applicable provisions of the referenced section and these Special Provisions. The Contractor shall comply with Section 13, Water Pollution Control, of the

1-6

Caltrans Standard Specifications, except compensation will be made per Section 10-4.09 of the Standard Construction Specifications.

As set forth in Section 10-4, “Erosion, Sediment, and Water Pollution Control”, of the Standard Construction Specifications, the minimum program required is that defined in Section 10-4.06, "Water Pollution Control Program" (WPCP). The Contractor may use the CalTrans WPCP template.

The Contractor shall not exceed 0.90 acre of total disturbance area outside the project limits. Unless arrangements for disturbance of areas outside the project limits are made by the Agency and made part of the contract (including but not limited to the Contractor's storage/staging yard), it is expressly agreed that the Agency assumes no responsibility whatsoever to the Contractor or property owner with respect to any arrangements made between the Contractor and property owner to allow disturbance of areas outside the project limits. If, at the fault of the Contractor, more than one acre is disturbed, the Contractor shall hire a Qualified SWPPP Developer (QSD) and a Qualified SWPPP Practitioner (QSP) to prepare and implement a SWPPP and comply with all requirements of the State Construction General Permit at no additional cost to the Agency.

The Contractor shall be responsible for the costs and for liabilities imposed by law as a result of the Contractor’s failure to comply with the provisions set forth in this section “Erosion, Sediment, and Water Pollution Control”, including but not limited to, compliance with the applicable provisions of the Federal, State, and local regulations. For the purposes of this paragraph, costs and liabilities include, but are not limited to, fines, penalties, and damages whether assessed against the County or the Contractor, including those levied under the Federal Clean Water Act and the State Porter Cologne Water Quality Act.

At reasonable times and upon presentation of credentials and other documents as may be required by law, the Contractor shall allow authorized agents of the California Regional Water Quality Control Board, State Water Resources Control Board, United States Environmental Protection Agency and the local storm water management agency to:

• Enter upon the construction site and the Contractor’s facilities pertinent to the work;

• Have access to and copy records that must be kept as specified in the WPCP;

• Inspect the construction site and related soil stabilization practices and sediment control measures; and

• Sample or monitor for the purpose of ensuring compliance with the WPCP.

The Contractor shall notify the Engineer immediately upon request from the regulatory agencies to enter, inspect, sample, monitor or otherwise access the project site or the Contractor’s records.

The Contractor shall be required to prepare and submit a WPCP to the Engineer for review and comment by the Agency a minimum of 15 calendar days prior to the start of construction. Erosion and sediment control shall conform to the requirements of the

1-7 current editions of the County of Sacramento Standard Construction Specification and Improvement Standards which can be viewed and downloaded for no cost at:

• www.saccountyspecs.net and

• http://www.engineering.saccounty.net/Pages/ImprovementStandards.aspx

The Engineer has 10 calendar days to review the WPCP. If revisions are required, as determined by the Engineer, the Contractor shall revise and resubmit the WPCP within 10 calendar days of receipt of the Engineer’s comments. The Engineer has 10 calendar days to review the revisions. Upon the Engineer’s approval of the WPCP, 4 additional copies of the WPCP, incorporating the required changes shall be submitted to the Engineer.

Best Management Practices (BMPs) shall be installed/implemented and maintained year round.

The following precautions shall be implemented regardless of the season:

• A stabilized construction site access must be constructed at any construction staging and/or stockpile site as determined appropriate by the Engineer.

• Temporary stockpiling of construction materials, including vehicles and portable equipment, supplies, fuels and chemicals, is restricted to approved construction staging areas within the project area.

• The use of water trucks and/or fire hydrant hoses for dust control and wash down is not permitted within the right-of-way.

• The Contractor is not limited to the requirements listed above, but is responsible for implementing whatever measures are necessary to prevent erosion and sedimentation.

• Gravel (sediment) bags shall be Ultra-Gravel Bags Part# 9780 or an approved equal.

The Contractor shall amend the WPCP, graphically and in narrative form, whenever there is a change in construction activities or operations which may affect the discharge of significant quantities of pollutants to surface waters, ground waters, municipal storm drain systems or when deemed necessary by the Engineer. The WPCP shall be amended if it has not effectively achieved the objective of reducing pollutants in storm water discharges. Amendments shall show additional control measures or revised operations, including those in areas not shown in the initially approved WPCP, which are required on the project to control water pollution effectively. Amendments to the WPCP shall be submitted to the Engineer for review and approval in the same manner specified for the initially approved WPCP. Approved amendments shall be dated and logged in the WPCP. Upon approval of the amendment, the Contractor shall implement the additional control measures or revised operations.

Upon approval of the WPCP, the Contractor is responsible throughout the duration of the project for installing, constructing, inspecting, and maintaining the control measures http://www.saccountyspecs.net/ http://www.engineering.saccounty.net/Pages/ImprovementStandards.aspx

1-8 included in the WPCP and any amendments thereto and for removing and disposing of temporary control measures. Unless otherwise directed by the Engineer or specified in these Special Provisions, the Contractor's responsibility for WPCP implementation shall continue throughout any temporary suspension of work ordered in conformance with the provisions in Section 5-21, "Temporary Suspension of Work," of the Standard Construction Specifications. Requirements for installation, construction, inspection, maintenance, removal, and disposal of control measures are specified in these Special Provisions.

The Contractor shall demonstrate the ability and preparedness to fully deploy soil stabilization practices and sediment control measures to protect soil-disturbed areas on the project site before the onset of precipitation. A quantity of soil stabilization and sediment control materials shall be maintained on site equal to 100 percent of that sufficient to protect unprotected, soil-disturbed areas on the project site. A detailed plan for the mobilization of sufficient labor and equipment shall be maintained to fully deploy control measures required for the protection of soil-disturbed areas on the project site prior to the onset of precipitation. A current inventory of control measure materials and the detailed mobilization plan shall be included as part of the WPCP.

Throughout the construction season, soil-disturbed areas of the project site shall be considered to be non-active whenever soil disturbance activities are to be discontinued for a period of at least 14 days and the areas are fully protected. Areas that will become non-active shall be fully protected with soil stabilization practices and sediment control measures within 10 calendar days of the discontinuance of soil disturbing activities or prior to the onset of precipitation, whichever is first to occur.

Throughout the construction season, active soil-disturbed areas of the project site shall be fully protected at the end of each day with soil stabilization practices and sediment control measures. The Contractor shall monitor the weather forecast on a daily basis.

The National Weather Service (NOAA) forecast shall be used. An alternative weather forecast proposed by the Contractor may be used if approved by the Engineer. If precipitation is predicted prior to the end of the following workday, construction scheduling shall be modified, as required, and functioning control measures shall be deployed prior to the onset of the precipitation.

The Contractor shall implement year round and throughout the duration of the project, control measures included in the WPCP for sediment tracking, wind erosion, non-storm water management and waste management and disposal.

The construction site inspection checklist provided in the WPCP shall be used to ensure that the necessary measures are being properly implemented, and to ensure that the control measures are functioning adequately. One copy of each site inspection record shall be submitted to the Engineer.

Inspections of the construction site shall be conducted by the Contractor to identify deficient measures, as follows:

1-9

• Prior to a forecast storm;

• After any precipitation which causes runoff capable of carrying sediment from the construction site;

• At least once each 24-hour period during extended qualified rain events; and

• Routinely, a minimum of once weekly.

If the Contractor or the Engineer identifies a deficiency in the deployment or functioning of an identified control measure, the deficiency shall be corrected immediately. The deficiency may be corrected at a later date and time if requested by the Contractor and approved by the Engineer in writing, but not later than the onset of subsequent precipitation. The correction of deficiencies shall be at no additional cost to the Agency.

Full compensation for all work associated with the erosion, sediment, and water pollution control shall be considered as included in the bid item for WPCP. No additional compensation will be paid.

SP-24 SANITARY REGULATIONS

Add the following paragraph to the end of Section 10-9 “Sanitary Regulations” of the Standard Construction Specifications:

“CONTRACTOR shall be solely and completely responsible for implementing the applicable COVID-19 guidelines from the California Department of Industrial Relations, Division of Occupational Safety and Health, and the applicable COVID-19 guidance from the Centers for Disease Control and Prevention for the protection of workers, including regulations concerning education, training, routine cleaning, on-site washing facilities, and the use of Personal Protective Equipment (PPE) at the workplace (collectively, "Guidelines"). The CONTRACTOR shall submit a plan and/or narrative description to the Agency for compliance with these Guidelines prior to commencement of the Work. This safety plan and/or narrative description shall describe all education, training, routine cleaning, on-site washing facilities, Personal Protective Equipment (PPE), or similar to be used at the Project Site. Full compensation for implementing the Guidelines, and any required updates to the safety plan and/or narrative description, shall be considered as included in the prices paid for the various items of Work involved as specified in Section 8-3, "Work to be Done Without Direct Payment," of the Standard Construction Specifications and therefore no additional compensation shall be made.

SP-25 PRECONSTRUCTION PHOTOGRAPHS

Preconstruction Photographs are required per Section 11-2, “Preconstruction Photographs”, of the Standard Construction Specifications.

Preconstruction Photographs shall be taken after USA utility markings have been marked at the site. Preconstruction Photographs shall be approved by the Engineer prior to any field work, including mobilization, potholing and placement of Construction Site Signs.

1-10

Any damage that cannot be proved as existing prior to the start of work will be the responsibility of the Contractor to repair at no cost to the Agency (see Special Provision "Protection of Improvements").

SP-26 TRAFFIC REQUIREMENTS

Provisions for public convenience and safety, construction area traffic control, and hours of work shall be in accordance with the County of Sacramento Standard Construction Specifications (September 2001, Revised January 2016). Specific requirements are provided in Sections 12-1, 12-2, 12-3, 12-4, and 7-8.

The following traffic speeds shall be used for computations involving sign spacing, tapers, buffers, etc. in the project section area:

• Sunset Avenue - 35 mph PSL/85th Percentile = 35 mph

Use a minimum of 35 mph for traffic control computations

• New York Avenue - 25 mph PSL/85th Percentile = 30 mph Use a minimum of 30 mph for traffic control computations

• Llano Lane - 25 mph PSL/85th Percentile = 25 mph

Use a minimum of 25 mph for traffic control computations

• All other residential side streets - 25 mph PSL Use a minimum of 25 mph for traffic control computations

The traffic speeds assigned are based upon radar speed surveys and posted/prima facie speed limits. So that the optimum provision is utilized in the computations, refer to 2014 California MUTCD Section 6C.04 computations.

The 2014 Sacramento County Traffic Control Template set (available online) should be reviewed and may be used for traffic control setup on the qualified streets; the 2014 California MUTCD Section 6C.04 computations are included in the template set. The 2014 Sacramento County Traffic Control Template is available online:

(http://www.sacdot.com/Pages/TrafficControlPlansandDetourPlans.aspx) should be reviewed and may be used for traffic control setup on the qualified streets

Work hours shall be tentatively set at 8:00 AM to 3:30 PM.

Any Traffic Control Plan, including street closures and detours, must be reviewed and approved by the Sacramento County Department of Transportation Right-Of-Way Management Section before starting work.

Pedestrian traffic mitigation shall be in full compliance with County of Sacramento Standard Construction Specifications Section 12-2.02. The 2014 Sacramento County

1-11

Traffic Control Templates (TC-45 and TC-45.1) can help to provide information involving pedestrian traffic mitigation.

All traffic control devices including: signs, barricades, vertical panels, drums, warning lights, arrowboards, changeable message signs, cones and tubular markers that meet the requirements of American Traffic Safety Services Association (ATSSA), "Quality Standard for Work Zone Traffic Control Devices - 1992" and the latest edition of the California Manual of Uniform Traffic Control Devices (MUTCD) shall be used on this project/this work.

The local Fire Department, Sheriff/Police Department, California Highway Patrol and/or Regional Transit shall be notified 24 hours in advance of construction work.

Contact and coordinate with ALL affected residents a minimum of 48 hours prior to restricting any residential street parking.

In accordance with Section 12-2 of the County of Sacramento Standard Construction Specifications, temporary facilities used by the contractor to perform the work or store or stage material or equipment must not be installed or placed where they will interfere with the free and safe passage of public vehicular, bicycle, or pedestrian traffic.

SP-27 CONSTRUCTION SITE SIGN

Add the following to Section 12-3.07, "Construction Signs" of the Standard Construction Specifications:

“The Contractor shall fabricate and install the construction site sign(s), as shown in Standard Drawing 9-32, “Construction Site Sign”, of the Standard Construction Specifications, as follows:

The construction site signs shall be placed at the following locations (also shown on the cover sheet vicinity map of the construction plans): (1) at the back of curb, within the road right-of-way, of the north west corner of Olive Street/New York Avenue intersection, facing New York Avenue; (2) at the back of curb, within the road right-of-way, of the south east corner of the intersection of Llano Lane/Sunset Avenue, facing north. The signs shall be placed after approval of Preconstruction Photographs and prior to any other fieldwork. The sign(s) shall be maintained in good condition at all times. The Engineer and/or Inspector shall determine whether or not the condition is considered “good”. The sign(s) shall be removed upon issuance of field acceptance. Any damage to the surface/area where the sign was installed shall be repaired to equal condition as before installation, or better.

The Contractor may salvage and reuse construction site signs, in good condition, from previous storm drain projects done for Sacramento County Department of Water Resources by replacing the project name. The Contractor’s name and phone number may be included in the text on the sign.”

1-12

Full compensation for fabrication, installation, removal, and maintenance shall be considered included in the bid item for Construction Site Sign.

SP-28 TEMPORARY BRIDGING OF EXCAVATIONS AND TRENCHES

Delete all permissions to use plywood as a substitute for steel plates in Section 12- 2.02.A(5), "Surface" and Section 12-3.08, “Temporary Bridging of Excavations and Trenches”, of the Standard Construction Specifications. Only steel plate is allowed for bridging in all locations.

SP-29 PROTECTION OF IMPROVEMENTS

Add the following to Section 12-6, “Excavation and Trench Safety” and Section 13-1.02, “Overloading, Pavement Protection & Repair”, of the Standard Construction Specifications.

“The Contractor shall prevent damage to existing surface or subsurface improvements, both public and private. All roadways and other improved surfaces shall be protected from damage by vehicles with tracks or lugs. All costs for this work shall be included in the prices bid for the items involved.”

All facilities, utilities, and property shall be protected from damage resulting from the Contractor’s operations. The Contractor throughout the construction period shall protect all trees, shrubbery, walls, and other improvements, including existing pavements, sidewalks, street improvements, underground utilities, and other improvements not shown on the plans from damage. All roadways and other improved surfaces shall be protected from damage by vehicles with tracks or lugs.

Any damage resulting from the Contractor’s operations shall be repaired by the Contractor to the condition, which existed prior to the damage, and to the satisfaction of the Engineer, at no cost to the Agency.

The Engineer may deduct from payments otherwise due to the Contractor, the estimated cost of repairing the damage created by the Contractor’s operation, until such time the Contractor makes the repairs to the Engineer’s satisfaction.

The Contractor shall provide temporary security fencing at the project site during the work.

SP-30 TRENCH SHORING AND BRACING

Trench shoring and bracing is required for trenches five (5) feet or more in depth per Section 12-6.02, “Shoring, Bracing, Shielding, and Sheeting”, of the Standard Construction Specifications.

1-13

SP-31 SLURRY SEAL

Surface restoration for streets shown on the Plans shall be carried out per Section 14- 3.04A of the Standard Construction Specifications with limits as follows (also shown on the Plans):

Llano Lane Station 0+80 to 7+20: A Type 2 slurry seal from edge of pavement to edge of pavement. The Type 2 slurry shall extend into the intersection of Llano Lane and New York Avenue, ending at both intersection curb returns.

Full compensation for all work associated with the preparation and application of the slurry seal, including re-application of pavement markings, and any additional work incidental thereto, shall be considered as included in the bid item Type 2 Slurry Seal.

SP-32 TEMPORARY PAVING

Add the following to Section 14-6, “Temporary Paving”, of the Standard Construction

"The work site must be kept clean and orderly at all times. The temporary paving must be inspected and maintained each day. If temporary paving begins to migrate outside of the temporary paving area, or otherwise is unkept or not orderly, the Contractor will be required to use asphalt concrete Type ‘A’, conforming to Section 23, “Asphalt Concrete”, of the Standard Construction Specifications on all streets.”

Full compensation for all work associated with temporary asphalt concrete paving shall be included in the bid items involved in the work. No separate payment shall be made.

SP-33 DISPOSAL OF EXCAVATED MATERIAL

Refer to Sections 15-1.03 and 18-7 of the Standard Construction Specifications.

SP-34 WATER USED IN CONSTRUCTION

Refer to Section 16, “Water Used In Construction”, of the Standard Construction Specifications.

Per Section 16-1, “General”, of the Standard Construction Specifications, a mobile unit with a minimum capacity of one thousand (1,000) gallons is not required for this project.

The Contractor shall provide water needed during construction.

1-14

SP-35 DUST CONTROL

Amend Section 17, “Dust Control”, of the Standard Construction Specifications to include the following:

“Dust control on paved public streets shall not be accomplished through the use of mobile unit spray down or wash down. The use of sweeper units with a hopper and utilizing a fine water/palliative mist is allowable so long as runoff or puddles do not occur and no airborne dust is generated. Sweeping is encouraged as an alternative for dust control.”

SP-36 TRENCH BACKFILL AND BASE MATERIAL

Delete the second and third paragraphs and add the following to Section 19-2.04, “Payment”, of the Standard Construction Specifications.

"Actual trench resurfacing quantities are calculated based upon the minimum width of trench specified in Standard Drawing 9-1 and are paid as a Final Pay item."

Delete Section 22-4, “Measurement and Payment”, of the Standard Construction Specifications. The price paid for aggregate base includes full compensation for furnishing all labor, materials, tools, equipment, and incidentals, and for doing all the work involved in furnishing and placing aggregate base, complete in place, including applying water, compacting the material, and finishing the surface, as shown or specified in the Contract, specified in these Specifications, and directed by the Agency and shall be included in the unit prices of the bid items involved with the work. No separate payment shall be made.

SP-37 ASPHALT CONCRETE

Delete Section 23-11, “Measurement and Payment”, of the Standard Construction Specifications.

The binder used in Type A and Type C asphalt concrete shall be PG 70-10. The aggregate shall conform to the provisions in Section 23-10.03, “Aggregate,” of the Standard Construction Specifications and these Special Provisions. The paving gradation for Type A and Type C shall be one-half inch (½”). Equipment, Placement, and Compaction shall as noted below:

Equipment

Equipment shall conform to the provisions in Section 23-10.04, “Equipment,” of the Standard Construction Specifications.

1-15

Placement

Placement of asphalt concrete shall conform to the provisions in Section 23-8, “Asphalt Concrete Placement Method,” and Section 23-8.03, “Spreading” of the Standard Construction Specifications and these Special Provisions.

No asphalt concrete (paving, base repair, curb and gutter, leveling course, etc.) shall be placed when the atmospheric temperature is below 50°F.

When asphalt concrete is placed in contact with existing asphalt concrete, the surface shall be completely dry of water, clean of dirt and debris, and a tack coat of asphaltic emulsion shall be applied to insure proper bond. The asphalt emulsion binder (tack coat) shall be furnished and applied in accordance with the State Specifications.

Paving width shall be (in order of precedence):

1. As marked by the Engineer in the field.

2. As shown on the Plans.

At gutter lips the finished grade shall not be less than flush and no more than one-hundredth of a foot (0.01’) higher than the lip of gutter.

Connections to existing surfacing shall match edge grinding or be feathered to conform to the requirements for smoothness. Full compensation for furnishing all labor and tools and doing all the work necessary to hand rake said conforms shall be considered as included in the bid item for 1.5-Inch Grind Asphalt Concrete and Hot Mix Asphalt Overlay and no additional compensation will be allowed.

The Contractor shall pave all contiguous lanes during the same shift. No vertical longitudinal or transverse construction joints shall be allowed without the Engineer’s authorization. Vertical construction joints, when allowed by the Engineer, shall conform to Section 12-3.13, “Road Edge Drop Off,” of the Standard Construction Specifications, except that transition ramp slope shall be twelve to one (12:1) or flatter. Bond breaking paper may be used for later removal.

Traffic shall not be allowed on the HMA for at least one hour after final rolling operations have been completed.

The entire roadway surface and gutter, if any, shall be swept forty-eight (48) hours after paving.

If the finished surface of the overlay ravels and/or does not meet the specified surface tolerances, it shall be brought within tolerance by either (1) abrasive grinding with slurry seal of the entire roadway width on the areas which have been ground (limits to be determined by the Engineer), (2) removal and replacement, or (3) placing an overlay of asphalt concrete. The method will be selected by the Engineer after meeting with the Contractor. The corrective work shall be at the Contractor's expense.

1-16

If abrasive grinding is used to bring the finished surface to specified surface tolerances, additional grinding shall be performed, as necessary, to extend the area ground in each lateral direction so that the lateral limits of grinding are at a constant offset from, and parallel to, the nearest lane line or pavement edge, and in each longitudinal direction so that the grinding begins and ends at lines normal to the pavement centerline within any ground area.

All ground areas shall be neat rectangular areas of uniform surface appearance.

Abrasive grinding shall conform to the requirements in the first paragraph and the last 4 paragraphs in Section 42-2.02, “Construction,” of the State Specifications, except that the grinding residue shall be legally disposed of outside the County’s right of way.

Compaction

Asphalt concrete compaction shall conform to the provisions in Section 14-3-03.A, of the Standard Construction Specifications.

The Contractor shall furnish equipment capable of producing the required compaction.

For vibratory rollers, the vibratory mode shall automatically shut off when machine direction is changed.

It is important that the breakdown roller compact the mat while the HMA is within the proper temperature zone. A cool mat will be resistant to compaction. It is recommended that two (2) vibratory rollers be used to insure timely compaction. Pneumatic tired rollers shall not be used to compact HMA.

Measurement and payment for asphalt concrete shall be as a Final Pay Item. The quantity of asphalt concrete shown in the Plans and in the Estimated Quantities of the Bid Form is the Final Quantity for which payment will be made as provided in Section 9-1.02C, “Final Pay Items”, of the State Specifications. References to the Engineer’s Estimate in the State Specification is understood to mean Bid Form in this agreement.

The depth of asphalt concrete shall be as shown on the Plans. If depth is not indicated, the depth placed shall be determined from Standard Drawing 4-64, “Trench Sections”, of the Standard Construction Specifications. The existing road section should be verified by the Contractor, with the replacement section matching the existing section or four-inches (4") on Llano Lane, New York Avenue, and all residential streets, whichever is greater.

The trench pavement restoration section shall be constructed per Standard Drawing 4- 64, “Trench Sections”, of the Standard Construction Specifications with the following limits (also shown on the Plans):

• Llano Lane: HMA shall be placed in the trench pavement restoration section up to the finished grade. A slurry seal shall be applied over the full width of Llano Lane, including the trench pavement restoration area, per these Special Provisions and as shown on the Plans.

1-17

Full compensation for all work associated with construction of asphalt concrete over the new storm drain pipe trench section, and any additional work incidental thereto, shall be considered as included in the bid item Hot Mix Asphalt (HMA) Trench Paving (F).

SP-38 DROP INLETS AND CATCH BASINS

Delete the third paragraph of Section 27-13, "Drop Inlets and Catch Basins", of the Standard Construction Specifications and replace with the following two paragraphs:

"Grate and frame materials and method of placement must conform to the requirements in the State Specifications. The use of reinforcing bar supports, concrete blocks, concrete dobies or masonry bricks must be utilized to support the frame or precast drop inlet or catch basin tops during placement of final concrete. Broken pieces of concrete, wood, or other debris cannot be used for this purpose.

Final Concrete must include concrete necessary to fill all voids between the drop inlet or catch basin top and the base. Prior to placement of or as part of final concrete, a concrete collar must be installed around the drop inlet. The concrete collar must conform to Standard Drawing 9-37 and be:

A. A minimum of 6-inches wide B. Cover the entire joint between the top and base of the drop inlet or catch basin. Additionally, the collar must extend at least 4-inches above and below the joint.”

All drop inlets and catch basins shall include a concrete collar per Standard Drawing 9-

37. Wall thickness for cast-in-place inlets must not vary more than four-inches (4") outside of the wall thicknesses shown on the standard drawings.

All new or replaced drop inlets shall include a concrete stamp behind the window/curb that states "NO DUMPING! FLOWS TO CREEK" per Standard Drawing 9-35A.1 and 9- 35B.1 "Storm Water Quality Drop Inlet Concrete Stamp", and as shown below. Under standard inlet installations, the use of any other marking method will not be acceptable.

In non-standard inlet installation situations and/or when placing a concrete apron for the stamp is not feasible, an Agency approved alternative may be allowed, at Agency's discretion. In no instances shall epoxy medallions be used."

1-18

Any existing improvements that are damaged/removed by the installation of new inlets must be repaired to existing or better condition. Full compensation for all work and materials involved in any repairs related to the inlet installation shall be included in the inlet bid items. No separate payment shall be made.

1-19

SP-39 TESTING OF SYSTEM

Leakage testing of the storm drain system is required per Section 38-10, “Testing of Pipe”, of the Standard Construction Specifications.

Twenty-five percent (25%) of the pipe payment will be withheld, in addition to the five percent (5%) retention, until the pipe passes leakage and television inspection.

Full compensation for all work associated with the testing of the system including leakage testing and any additional work incidental thereto shall be considered as included in the bid item Testing of System.

SP-40 TELEVISION INSPECTION

Television Inspection (TVI) of the storm drain system is required per Section 38-10.04, “Television Inspection (TVI)”, of the Standard Construction Specifications.

Re-number Section 38-10.04.J, “Acceptance Criteria for New Construction”, of the Standard Construction Specifications to Section 38-10.04.K.

Add the following new Section 38-10.04.J:

“38-10.04.J New Construction TVI Report and Video Upon completion of the TVI, the Contractor shall provide the Agency with a final TVI Report prepared in accordance with the following. The report is to include only data from pipe segments meeting all acceptance criteria. The final TVI Report shall be submitted to the Agency within five (5) Working Days of the pipe installation being found to be in compliance with these Specifications and the Contract documents.

The final TVI Report shall include, at a minimum:

1. A title page (header information) for each segment.

2. A schematic plot of each segment showing observation codes and footages.

3. MPEG video of each segment.

4. Inclinometer survey data for each segment.

5. A map of the pipeline which shows manhole numbers

6. Printed records or reports as detailed elsewhere in these

Specifications or as directed by Agency.

Poor picture quality, illegible text, extended periods of inactivity, inappropriate language or idle chatter are not acceptable and will be grounds for rejection by the Agency.”

Full compensation for all work associated with the television inspection of the system and any additional work incidental thereto shall be considered as included in the bid item for Television Inspection (TVI).

1-20

SP-41 MANHOLES

Delete the second sentence of the first paragraph of section 39-2.02 "Concrete Storm Drain Manholes", of the Standard Construction Specifications.

SP-42 SURVEY MONUMENTS

Add the following to Section 46, “Survey Monuments”, of the Standard Construction

“Replace damaged or destroyed surveyed monuments with a 2½” Brass Disc in a Caltrans Type “D” Monument. Disk to be stamped as shown in the example below.

The year on the disk shall be the year installed.”

The project engineer in charge of the governmental agency performing, permitting construction or maintenance work is responsible for ensuring monument perpetuation is provided in accordance with Business and Professions Code Section 6730.2(c). Every effort should be made by the contractor to preserve and protect original survey monuments.

In accordance with Business and Professions Code Section 8771, all survey monuments must be searched for and referenced by a California Licensed Land Surveyor, prior to the beginning of construction or maintenance work that could damage, disturb or destroy a survey monument. County Surveys is tasked with searching, referencing and replacing of said survey monuments.

Contractor shall coordinate all survey monument work with County Surveys.

County Surveys shall complete a diligent and thorough search for survey monuments prior to the beginning of construction. The contractor shall notify County Surveys or CMID prior to start of work to ensure that the monument search and all field reference work is complete so that monuments can be replaced if they are disturbed or destroyed.

If the contractor discovers a survey monument that was not identified and referenced by County Surveys, the contractor is to notify, with 5 days advanced notice, CMID and County Surveys before damaging or destroying the survey monument.

1-21

If the contractor destroys an unreferenced survey monument, the contractor will bear the cost of County Survey’s efforts to re-determine the location and replacement of said survey monument.

SP-43 CONCRETE

All concrete shall have a minimum 28-day compressive strength of 4,000 psi, a maximum coarse aggregate size of three-quarters inch (3/4”), and conform to Section 50-5, “Portland Cement Concrete”, of the Standard Construction Specifications.

SP-44 REINFORCED CONCRETE PIPE, DRAINAGE (RCPD)

Reinforced concrete pipe shall conform to ASTM Designation: C 76 Class III per Section 50-21 of the Standard Construction Specifications unless shown otherwise on the Plans.

SP-45 POLYVINYL CHLORIDE PIPE (PVC)

Polyvinyl chloride pipe (PVC) must conform to Section 38, “Storm Drain Construction” and Section 50-26.02, “PVC Pipe for Drainage”, of the Standard Construction…