COUNTY OF CALAVERAS DEPARTMENT OF PUBLIC WORKS CALAVERAS 2017 WINTER STORM RECOVERY GWIN MINE ROAD FEMA PROJECT WORKSHEET NO. PW00488 (2), Disaster No FEMA-DR-4301 OES I.D. No 009-00000. SPECIAL PROVISIONS Approved By: The following Special Provisions are to be supplemented by the 2018 California Department of Transportation Standard Specifications, Revised California Department of Transportation Standard Specifications dated April 19, 2019 Project No. 18-19 March 11, 2020
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COUNTY OF CALAVERAS
DEPARTMENT OF PUBLIC WORKS
CALAVERAS 2017 WINTER STORM RECOVERY
GWIN MINE ROAD
FEMA PROJECT WORKSHEET NO. PW00488 (2),
Disaster No FEMA-DR-4301 OES I.D. No 009-00000.
SPECIAL PROVISIONS
Approved By:
The following Special Provisions are to be supplemented by the 2018 California Department of Transportation
Standard Specifications, Revised California Department of Transportation Standard Specifications dated April
Table of Contents SPECIAL NOTICES........................................................................................................................................... 3
STANDARD PLANS LIST .................................................................................................................................. 4
NOTICE TO BIDDERS ...................................................................................................................................... 5
COPY OF BID ITEM LIST ................................................................................................................................. 6
DIVISION I GENERAL PROVISIONS ................................................................................................................. 7
1 GENERAL ................................................................................................................................................ 7
DIVISION II GENERAL CONSTRUCTION ........................................................................................................ 24
10 GENERAL ............................................................................................................................................ 24
12 TEMPORARY TRAFFIC CONTROL ........................................................................................................ 24
13 WATER POLLUTION CONTROL ........................................................................................................... 25
DIVISION III EARTHWORK AND LANDSCAPE ............................................................................................... 33
17 GENERAL ............................................................................................................................................ 33
DIVISION XI MATERIALS .............................................................................................................................. 35
REPLACE THE FOLLOWING GLOSSARY TERMS IN SECTION 1-1.07B WITH:
authorized laboratory: Independent testing laboratory (1) not employed or compensated by any subcontractor or subcontractor's affiliate providing other services for the Contract and (2) authorized by Caltrans.
Bid Item List: List of bid items and the associated quantities. The verified Bid Item List is the Bid Item List with verified prices. The Contract Proposal of Low Bidder is the verified Bid Item List. After Contract award, interpret a reference to the Bid Item List as a reference to the verified Bid Item List.
California Test: Caltrans-developed test for determining work quality. For California Tests, go to the METS Web site.
Department: Calaveras County
Director: Board of Supervisors, Calaveras County
Engineer: The Director of Public Works, Calaveras County, acting either directly or through properly authorized agent or consultants.
material source facility audit: Self-audit and a Caltrans audit evaluating a facility's capability to consistently produce materials that comply with Caltrans standards.
plans: Standard plans, revised standard plans, and project plans.
1. standard plans: Drawings standard to Caltrans’ construction projects
2. revised standard plans: New or revised standard plans
3. project plans: Drawings specific to the project, including authorized shop drawings
Specifications: Standard specifications, revised standard specifications, special provisions
1. standard specifications: Specifications standard to Caltrans’ construction projects. These specifications are in a book titled Standard Specifications 2018.
2. special provisions: Specifications specific to the project. These specifications are in a section titled Special Provisions of a book titled Notice to Bidders and Special Provisions dated 02-21-2020
State: Calaveras County
Structure Design: Calaveras County Department of Public Works
Caltrans: California Department of Transportation as defined in St. & Hwy Code section 20 and authorized in St. & Hwy Code section 90; its authorized representatives.
contract documents: The Contract Documents consist of: Notice to Bidders, the prevailing rate of per diem wages as determined by the Department of Industrial Relations, the accepted Bid and Bid Schedule, List of Subcontractors, Non-Collusion Affidavit, Bid Security or Bid Bond, this Contract Agreement, Worker's Compensation Certificate, Performance Bond, Payment Bond, Notice of Award, Notice to Proceed, Notice of Completion, Special Provisions, Standard Specifications, Revised Standard Specifications, Labor Surcharge and Equipment Rental Rates, Drawings, Addenda, Change Orders, Work Directives, and any other applicable documents not listed, including modifications incorporated in those documents.
Office Engineer: Calaveras County Procurement Services
Project biologist: A CDFW-approved biologist provided by the County
Make checks and bonds payable to “County of Calaveras”.
2 BIDDING 2-1.05 RESERVED
REPLACE SECTION 2-1.05 WITH:
2-1.05 CONFLICT OF INTERESTS: In conformance with Public Contract Code Section 7106, a
Noncollusion Affidavit is included in the Bid book. Signing the Bid book shall also constitute signature of
the Noncollusion Affidavit.
The Contractor, sub-recipient or subcontractor shall not discriminate on the basis of race, color, national
origin, or sex in the performance of this contract. The contractor shall carry out applicable requirements
of Title 49 CFR (Code of Federal Regulations), Part 26 in the award and administration of US DOT-
assisted contracts. Failure by the Contractor to carry out these requirements is a material breach of this
contract, which may result in the termination of this contract or such other remedy, as the recipient
deems appropriate. Each subcontract signed by the bidder must include this assurance.
2-1.12A GENERAL
ADD TO SECTION 2-1.12A:
Take necessary and reasonable steps to ensure that DBEs have opportunity to participate in the contract
(49 CFR 26).
2-1.34 BIDDER’S SECURITY
REPLACE SECTION 2-1.34 WITH:
Submit one of the following forms of bidder's security equal to at least 10 percent of the bid:
1. Cash 2. Cashier's check 3. Certified check 4. Signed bidder's bond by an admitted surety insurer Submit cash, cashier’s check, certified check, or bidder's bond with your bid response before the bid
opening time.
If using a bidder's bond, you must use the form in the Bid book.
Deliver to Calaveras County, Department of Public Works 891 Mountain Ranch Road, San Andreas,
California 95249:
1. Signed Contract 2. Contract bonds 3. Documents identified in section 3-1.07 4. For a federal-aid contract, Caltrans Bidder - DBE Information form 5. A Form 1273 Certification from every subcontractor 6. Finalized SWPPP The Office Engineer must receive these documents before the10th business day after the bidder
receives the contract.
The bidder's security may be forfeited for failure to execute the contract within the time specified (Pub
Cont. Code §§ 10181, 10182, and 10183).
4 SCOPE OF WORK 4-1.06 DIFFERING SITE CONDITIONS (23 CFR 635.109)
ADD TO SECTION 4-1.06C:
This contract is subject to Public Contract Code, Section 7104, and specifically Sub-section (c) that states
that, in the event that a dispute arises between the public entity and the contractor whether the
conditions materially differ, or involve hazardous waste, or cause a decrease or increase in the
contractor's cost of, or time required for, performance of any part of the work, the contractor shall not
be excused from any scheduled completion date provided for by the contract, but shall proceed with all
work to be performed under the contract. The contractor shall retain any and all rights provided either
by contract or by law which pertain to the resolution of disputes and protests between the contracting
parties.
4-1.13 CLEANUP
REPLACE THE LAST PARAGRAPH OF SECTION 4-1.13 WITH:
Do not remove warning, regulatory, or guide signs until directed by Engineer.
REPLACE THE LAST PARAGRAPH OF SECTION 5-1.01 WITH:
Use the contract administration forms given to you by the Department.
ADD TO SECTION 5-1.01:
No partial payment shall be made for any materials on hand which are furnished but not incorporated in
the work.
5-1.02 CONTRACT COMPONENTS
REPLACE SECTION 5-1.02 WITH:
A component in one Contract part applies as if appearing in each. The parts are complementary and
describe and provide for a complete work.
If a discrepancy exists:
1. Governing ranking of Contract parts in descending order is: 1.1. Construction Contract 1.2. Notice to Contractors 1.3. Executed Proposal 1.4. Special provisions 1.5. Project plans 1.6 Caltrans’ Traffic Manual 1.3. Revised standard specifications 1.4. Standard specifications 1.5. Revised standard plans 1.6. Standard plans 1.7. Supplemental project information
2. Written numbers and notes on a drawing govern over graphics 3. Detail drawing governs over a general drawing 4. Specific specification governs over a general specification 5. Specification in a section governs over a specification referenced by that section If a discrepancy is found or confusion arises, submit an RFI.
5-1.23A GENERAL
REPLACE ITEM 2 IN THE 4TH PARAGRAPH OF SECTION 5-1.23A WITH:
If sufficient area is not available within the contract limits, you are responsible for securing, at your own
expense, areas required for plant sites, storage of equipment for materials or for other purposes. Obtain
encroachment permit prior to occupying County-owned parcels outside the contract limits. Obtain the
permits from Calaveras County 891 Mountain Ranch Road, San Andreas, California, 95249.
6 CONTROL OF MATERIALS 6-1.04C STEEL AND IRON MATERIALS
REPLACE SECTION 6-1.04C WITH:
Furnish steel and iron materials to be incorporated into the work with certificates of compliance. Steel
and iron materials must be produced in the U.S. except:
1. Foreign pig iron and processed, pelletized, and reduced iron ore may be used in the domestic production of the steel and iron materials [60 Fed Reg 15478 (03/24/1995)];
2. If the total combined cost of the materials does not exceed the greater of 0.1 percent of the total bid or $2,500, materials produced outside the U.S. may be used.
Production includes:
1. Processing steel and iron materials, including smelting or other processes that alter the physical form or shape (such as rolling, extruding, machining, bending, grinding, and drilling) or chemical composition;
2. Coating application, including epoxy coating, galvanizing, and painting, that protects or enhances the value of steel and iron materials.
6-1.05 SPECIFIC BRAND OR TRADE NAME AND SUBSTITUTION
REPLACE SECTION 6-1.05 WITH:
On the sheet provided in the Bid Book, to be submitted as part of the proposal, the bidder shall list each
proposed substitution of an “equal” product. The bidder shall identify the proposed substitution by the
section of the specifications that specifies the product, the name of the product proposed to be
substituted out, and the name and manufacturer of the product proposed to be substituted. Prior to the
award of the Contract and upon the request of the Engineer, the bidder shall submit the written request
for substitution within three (3) business days. The request shall be accompanied by evidence
satisfactory to the Engineer that the materials and products proposed for use are equal to or better than
the materials and products specified or detailed on the plans. The burden of proof as to the quality and
suitability of substitutions shall be upon the bidder. Failure to submit the information as requested by
the Engineer shall be deemed a voluntary withdrawal of the proposed substitution.
No requests for any substitution shall be allowed unless listed on the sheet provided. No requests for
substitution shall be allowed after the opening of the bid. Requests for substitution shall be reviewed
and considered by the Engineer promptly after the award of the contract to the lowest responsible
Bidder. In its sole discretion, the Engineer may request additional information about the proposed
Locate flammable materials at least 50 feet away from equipment service, parking, and gas and oil
storage areas. Each small mobile or stationary engine site must be cleared of flammable material for a
radius of at least 15 feet from the engine.
Furnish the following fire tools:
1. 1 shovel and 1 fully charged fire extinguisher UL rated at 4 B:C or more on each truck, personnel vehicle, tractor, grader, or other heavy equipment.
2. 1 shovel and 1 backpack 5-gallon water-filled tank with pump for each welder. 3. 1 shovel or 1 chemical pressurized fire extinguisher, fully charged, for each gasoline-powered tool,
including chain saws, soil augers, and rock drills. The fire tools must always be within 25 feet from the point of operation of the power tool. Each fire extinguisher must be of the type and size required by the Pub Res Code § 4431 and 14 CA Code of Regs § 1234. Each shovel must be size O or larger and at least 46 inches long.
7-1.06A GENERAL
REPLACE SECTION 7-1.06A WITH:
CONTRACTOR must file with COUNTY concurrently herewith a Certificate of Insurance, in companies
acceptable to COUNTY, with a Best's Rating of no less than A-: VII showing.
7-1.06C WORKER’S COMPENSATION AND EMPLOYER’S INSURANCE
REPLACE SECTION 7-1.06B WITH:
Worker's Compensation Insurance shall be provided as required by any applicable law or regulation.
Employer's liability insurance shall be provided in amounts not less than one million dollars ($1,000,000)
each accident for bodily injury by accident, one million dollars ($1,000,000) policy limit for bodily injury
by disease, and one million dollars ($1,000,000) each employee for bodily injury by disease.
If there is an exposure of injury to PROVIDER'S employees under the U.S. Longshoremen's and Harbor
Worker's Compensation Act, the Jones Act, or under laws, regulations, or statutes applicable to
maritime employees, coverage shall be included for such injuries or claims.
Each Workers’ Compensation policy shall be endorsed with the following specific language:
Cancellation Notice - “This policy shall not be changed without first giving thirty (30) days prior written
notice and ten (10) days prior written notice of cancellation for non-payment of premium to the County
of Calaveras.”
Waiver of Subrogation - The workers’ compensation policy shall be endorsed to state that the workers’
compensation carrier waives its right of subrogation against the County, its officers, directors, officials,
employees, agents or volunteers, which might arise by reason of payment under such policy in
connection with performance under this agreement by the CONTRACTOR.
CONTRACTOR shall require all SUBCONTRACTORS to maintain adequate Workers' Compensation
insurance. Certificates of Workers' Compensation shall be filed forthwith with the County upon demand.
13-12.01C (1) TEMPORARY CREEK DIVERSION SYSTEM PLAN
Within 20 days of Contract approval, submit 3 copies of the Temporary Creek Diversion System Plan
(TCDSP). The TCDSP must include:
1. Installation and removal process, including equipment, platforms for equipment, and access locations.
2. Anticipated flow rates. 3. Calculations supporting the sizing of piping, channels, pumps, or other conveyance by using FHWA
HY-8 or other equivalent method. Calculate the discharge water flow rate and velocity anticipated where it discharges on any erodible surface, so its conveyance does not cause erosion within the project or at the discharge to the water body. Temporary culverts attached to banks, walls, or other locations must be designed to hold the full weight of the culvert at capacity and restrain the culvert for any expected hydraulic forces.
4. Plans showing locations of diversion, including layouts, cross sections, and elevations. 5. Materials proposed for use, including MSDS if applicable. 6. Operation and maintenance procedures for the TCDS. 7. Restoration plans showing before and after conditions, including photos of existing conditions for
areas disturbed during the installation, operation, and removal of the TCDS. 8. Monitoring and reporting plan to ensure applicable water quality objectives are met. This includes
schedule of work including Temporary BMP implementation as part of the Construction Site BMP strategy, and SWPPP or WPCP as applicable. Use with section 13-3.01A.
9. Details of the pumping system, if used, including power source, debris handling, fish screens, and monitoring requirements.
10. Fish passage plan, following the Caltrans Fish Passage Design for Road Crossings, CA Department of Fish and Wildlife (CDFW), CA Salmonid Stream Habitat Restoration Manual, and National Marine Fisheries Service (NMFS), Guidelines for Salmonid Passage at Stream Crossings, as required by the applicable PLACs.
11 The TCDS design must demonstrate how it will comply with section 13-12.03A, water tightness, and prevent seepage.
12. Contingency plan to remove workers, equipment, materials, fuels, and any other work items that will cause pollution or violation of PLACs during a rain event out of the flow area. Develop the contingency plan for when a 12-inch freeboard cannot be maintained and overtopping of the coffer dams may occur.
If revisions are required, the Engineer notifies you of the date when the review stopped and provides
comments. Submit a revised TCDSP within 15 days of receiving the comments. The Department's review
resumes when a complete TCDSP has been resubmitted.
Submit an electronic copy on a read-only CD, DVD, or other Engineer-authorized data storage device and
4 printed copies of the authorized TCDSP.
If the RWQCB or other regulatory agency requires review of the authorized TCDSP, the Engineer submits
it to the RWQCB for review and comment. If the Engineer orders changes to the TCDSP based on the
RWQCB's comments, submit a revised TCDSP within 10 days.
All submittals which include plans, specifications, and calculations must be sealed and signed by a civil
engineer registered in the State.
13-12.01D QUALITY ASSURANCE
Not Used
13-12.02A GRAVEL
Gravel must:
1. Be river run gravel obtained from a river or creek bed with gradation of 100 percent passing a 3/4 inch sieve and 0% passing a 3/8 inch sieve
2. Be clean, hard, sound, durable, uniform in quality, and free of any detrimental quantity of soft, thin, elongated or laminated pieces, disintegrated material, organic matter, or other deleterious substances
3. Be composed entirely of particles that have no more than 1 fractured face 4. Have a cleanliness value of at least 85, as determined by California Test 227 13-12.02B IMPERMEABLE PLASTIC MEMBRANE
Impermeable plastic membrane must be:
1. Single ply, commercial quality, polyethylene with a minimum thickness of 10 mils complying with ASTM D2103. You must use stronger plastic membrane if required as part of design to resist hydraulic forces.
2. Free of holes, punctures, tears or other defects that compromise the impermeability of the material. 3. Suitable for use as an impermeable membrane. 4. Resistant to UV light, retaining a minimum grab breaking load of 70 percent after 500 hours under
ASTM D4355. 13-12.02D PLASTIC PIPES
Plastic pipe must comply with section 61-3.01 and must:
1. Be clean, uncoated, in good condition free of rust, paint oil dirt or other residues that could potentially contribute to water pollution
2. Be adequately supported for planned loads 3. Use watertight joints under section 61-2.01. 4 Be made of a material or combination of materials that are suitable for clean water and which do
not contain banned, hazardous or unlawful substances 5. For temporary pipes not reused on the project you may use the following materials:
5.1. PVC closed-profile wall pipe must comply with ASTM F1803 5.2. PVC solid wall pipe must comply with ASTM D3034, ASTM F679, AWWA C900, AWWA C905,
or ASTM D2241 and cell class 12454 defined by ASTM D1784 5.3. HDPE solid wall pipe must comply with AASHTO M 326 and ASTM F714 5.4. Polyethylene large-diameter-profile wall sewer and drain pipe must comply with ASTM F894
13-12.02E ROCK
Rock layer must comply with the table titled Rock Gradation for 7-inch-thick Layer in section 72-4.02.
1. Comply with section 74-2.02B 2. Be equipped with secondary containment 3. Be free of fuel and oil leaks 4. Meet intake screen regulatory requirements 13-12.02G SEEPAGE PUMPING SYSTEM
If seepage occurs in the dewatered work area, the water must be removed by sump pumps as part of
the TCDS.
Seepage pumping system must:
1. Comply with section 74-2.02B 2. Ensure discharge water conform with PLACs or is treated on site 3. Be free of fuel and oil leaks 13-12.02H DISCHARGE WATER ENERGY DISSIPATION AND EROSION CONTROL
Discharge water from pumps, pipes, ditches, or other conveyances must have BMPs to dissipate the
flows and velocity of water discharged from the temporary diversion system if erosion would otherwise
occur.
Energy dissipation measures:
1. May be plastic sheeting, flared end sections, rubber matting, or other materials appropriate for the design hydraulics
2. Must be anchored to prevent movement by expected flows 3. Must be removed when the TCDS is removed 13-12.03A GENERAL
Construction, use and removal of the TCDS is restricted to the time period from June 1st to November
1st. If the work cannot be completed during the initial restricted time period, remove TCDS, restore the
creek to original flow condition, and reconstruct the TCDS after June 1st of the following year. No work is
allowed within the stream except during the restricted time period.
Do not use motorized equipment or vehicles in areas of flowing or standing water for the construction
or removal of the TCDS in compliance with section 13-4.03.
Remove vegetation to ground level and clear away debris.
Place temporary or permanent fill as allowed by PLACs.
Place rock at outlet of diversion pipe under section 72-4.03, except motorized vehicles and equipment
must not be used in areas of flowing or standing water.
Do not construct or reconstruct TCDS if the 72-hour forecasts predict a 50 percent or greater chance of