Special_Provisions.pdf

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Attached to
Ten Mile Road and Deer Flat Road
Solicitation number
CT227-10
Issued by
Ada County, Idaho

About this file

This Special Provisions document establishes the terms and conditions for construction of a roundabout at the intersection of Ten Mile Road and Deer Flat Road (Project No. 321038) in Ada County, Idaho, managed by the Ada County Highway District (ACHD). The project encompasses concrete and asphalt paving, curb and gutter installation, multi-use pathways, Rectangular Rapid Flashing Beacons (RRFB), school zone flashers, street lighting, stormwater infrastructure, irrigation systems, and water line installations. The contractor must follow the 2017 Idaho Standards for Public Works Construction (ISPWC) and ACHD supplemental provisions. Key contractual obligations include providing detailed construction staging plans and traffic control plans for ACHD approval prior to implementation, maintaining ADA-compliant temporary pedestrian routes and facilities during construction, coordinating with the City of Kuna regarding utility extensions, and implementing a Stormwater Pollution Prevention Plan (SWPPP) in compliance with NPDES Construction General Permit requirements. The contract requires on-site superintendent presence from notice to proceed through completion, with written notice required if the superintendent must be replaced.

The payment structure utilizes unit price bidding based on actual quantities, with all plan quantities considered in-place, completed, and accepted units. Quality control and quality assurance testing protocols are established with minimum testing frequencies for materials including concrete, asphalt, and aggregates, with acceptance determined by ACHD's independent verification. Material failing specifications is subject to price adjustment or rejection as determined by ACHD's sole discretion. Notable incidental costs (non-separately paid) include dust control during asphalt and concrete cutting, connecting pipes and structures, site cleanup, temporary stormwater flow management, subgrade maintenance, obliteration of conflicting pavement markings, and construction staging plan preparation. The contractor bears costs for damaged areas beyond specified construction limits, material disposal sites, damaged utility infrastructure from blasting, and re-testing necessitated by failed quality assurance testing. ACHD retains authority over fiber optic network disruptions (limited to weekends), power supply connections, and approval of all working drawings and shop drawings submitted by the contractor.

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SPECIAL PROVISIONS

Ten Mile Rd and Der Flat Rd

PROJECT NO. 321038 – GIS NO. IN205-44

November 2026

This stamp certifies the attached modifications to the 2017 ISPWC and ACHD supplemental provisions. It does not certify the ISPWC or ACHD supplemental provisions.

GENERAL NOTES:

1. ACHD OWNED CONDUIT IMPACTS

ACHD-owned conduit may be shallow and located directly behind the curb or under the sidewalk.

The Contractor’s method of sidewalk and/or curb removal shall be done in a manner to avoid damage to conduit and fiber. Any damage shall be repaired at the Contractor’s expense.

2. AMERICANS WITH DISABILITY ACCESS (ADA) DURING CONSTRUCTION

The needs and control of all road users (motorists, bicyclists, and pedestrians within the highway and/or public right-of-way, including persons with disabilities in accordance with the Americans with Disabilities Act of 1990 (ADA), Title II, Paragraph 35.130) through a temporary traffic control “TTC” zone shall be an essential part of highway construction, utility work, maintenance operations, and the management of traffic incidents. The primary function of TTC is to provide for the reasonably safe and efficient movement of road users through or around TTC zones while reasonably protecting workers, responders to traffic incidents, and equipment.

Temporary facilities, including reasonably safe pedestrian routes around work sites, are also covered by the accessibility requirements of the Americans with Disabilities Act of 1990 (ADA) (Public Law 101-336, 104 Stat.327, July 26, 1990. 42 USC 12101-12213 (as amended)). Implementation of TTC plans and installation and maintenance of devices shall be the responsibility of the contractor performing the construction, alteration and/or maintenance of the highway or public right-of-way.

Temporary traffic control for pedestrians shall meet the accessibility requirements (Standards) set forth in Part 6 of the MUTCD. When an existing continuous sidewalk or street crossing route cannot be maintained for pedestrians because of construction, either temporary walkways with curb ramps are to be provided, or the construction shall be phased to maintain access to the affected addresses.

Contractors shall be allowed flexibility as long as the requirements are met.

The location of the construction project and whether or not accessible facilities are present shall also determine the extent of the needed temporary facilities. The contractor is only required to maintain practical continuity where accessible facilities already exist. On low speed rural roads that do not have sidewalks and are used by bicyclists, no additional measures are needed as the bicycles can share the available travel lanes with other traffic. On moderate to higher speed rural roads, if a bike lane exists then it should be properly detoured, complete with signage, to provide a safe route through or around the work area. If a road or bridge project affects vehicular traffic to a business, residence, school or any other type of pedestrian generating location with existing accessible facilities, then pedestrian and accessible access must be maintained.

A continuous route for all pedestrians, including the disabled and bicyclists, shall be maintained at all times. When existing pedestrian facilities are disrupted, closed, or relocated in a TTC zone, the temporary facilities shall be detectable and include accessibility features consistent with the features present in the existing pedestrian facility. The temporary route should enable pedestrians to bypass the construction site while minimizing the retracing of their steps or going significantly out of their way. Additional consideration must be given to the disabled since they may not have the physical or cognitive ability to improvise (e.g. balancing along the curb or a very narrow path) or use unofficial alternatives (e.g. using an adjacent grass surface). Temporary routes must meet the accessibility guidelines of the ADA for permanent facilities and shall be marked with the proper signage. Should existing crosswalks at signalized intersections be closed or made inaccessible, temporary crosswalks should be painted in an accessible location. Temporary signals should include pedestrian phases.

Contractors shall not block temporary walkways with contractor parking, materials piles, signs, rubble or rubbish. Construction equipment and equipment operation must be separated from the temporary walkways. At work zones where higher volumes of pedestrian traffic or school children exist, pedestrian fences or other protective barriers may be needed to prevent access into the construction area.

Detour and diversion routes, when used for pedestrians and bicyclists, should be evaluated for the following items:

• Direct conflicts between pedestrians and vehicular traffic, work vehicles, and other work activities must be reduced with protective barriers or continuous high contrast fencing (min 36” high with a 6” high toe board). See MUTCD 6F.68 and 6D.02

• Temporary pedestrian facilities should provide safe, accessible routes that replicate as nearly as practical the most desirable characteristics of the existing facility and parallel the disrupted route whenever possible. A smooth, continuous hard surface should be provided throughout the entire length of the temporary pedestrian facility. There should be no curbs or abrupt changes in grade or terrain that could cause tripping or be a barrier to wheelchair use. The geometry and alignment of the facility should meet the applicable requirements of the Americans with Disabilities Act Accessibility Guidelines (ADAAG) for Buildings and Facilities. See MUTCD 6D.01 and 6D.02

• Advance information placed at appropriate distances before the work zone allowing pedestrians to make timely decisions about routes through or around the work zone. See MUTCD 6F.14

• Transition information allowing pedestrians to find a safe path through and around work zones, which is critical when the pathway is restricted, diverted or detoured. See MUTCD 6F.14

• Work area information assisting in safe passage of pedestrians through the work zone. This information is needed on all pedestrian routes except detours. See MUTCD 6F.14

• Exit information directing pedestrians back to the original route. See MUTCD 6F.14

• Crosswalk placement at intersections may need additional signage, temporary striping, traffic signal modification, pedestrian signals with audible alarms if justified, proper push button height, and ramps. See MUTCD 6H.29, 6F.80, and 4E.06

• Accommodations for other transit forms (busses, trains etc.) are made. See MUTCD 6D.02

• Requirements of the ADAAG and MUTCD are adhered to.

• Access is maintained to the affected businesses and residences.

3. ASPHALT AND CONCRETE CUTTING

Asphalt pavement and concrete cutting shall be incidental to other items of this contract. Contractor shall ensure that cuts made in asphalt and concrete for trenches are parallel and do not wander or diverge from the intended line.

Dust produced by asphalt or concrete saw cuts shall be collected using a high-powered vacuum dust control system, eliminating the dust from entering the atmosphere. The suction device shall be attached to the cutting equipment or positioned to assure a maximum amount of dust will be collected before it can be released into the atmosphere. The cost to ensure dust is collected during asphalt and concrete cutting shall be considered incidental to the cost of the project and no additional compensation will be made.

4. BASIS OF PAYMENT

Except as modified herein, the various roadway work called for on the Bid Schedule shall be performed, measured, and paid for as indicated on said Bid Schedules and as provided in the 2017 IDAHO STANDARDS FOR PUBLIC WORKS CONSTRUCTION (ISPWC) and the corresponding supplements. The Contractor is required to have the current edition of the ISPWC standards to perform this work. Unless otherwise specified herein, all plan quantities are based upon in-place, completed and accepted units.

5. CITY OF KUNA UTILTIES

Coordinate with the City of Kuna a minimum of thirty (30) days prior to excavation to coordinate extension of 12” pressurized sewer pipe. Field locate pipe termination near Deer Flat Road Sta.

39+75, 38’ Lt. Coordinate with the City of Kuna forces to extend service to the property line and/or outside of the moratorium limits pending field verification results. Costs for this potential waterline extension are NOT included in the proposed plans or estimate. Any work performed to extend this service will require an add alternative by the contractor to the City of Kuna.

Properties adjacent to the project limits receive pressure irrigation service from the City of Kuna.

Field verify locations of service with the City of Kuna prior to the start of excavation.

6. CONFLICTING PAVEMENT MARKINGS

All conflicting pavement markings shall be completely obliterated using an ACHD approved method prior to applying permanent pavement markings. The cost of performing all obliteration shall be considered incidental to other items and no separate pay item will be included for obliteration of pavement markings.

7. CONNECTING PIPES

Connecting new pipes, manholes, irrigation structures\ditches and catch basins to existing pipes, manholes, irrigation structures\ditches and catch basins is incidental to other work and no additional compensation will be made.

The contractor shall verify invert elevations for all pipe replacements to existing structures that are to remain in place.

8. CONSTRUCTION STAGING

The Contractor shall furnish ACHD with a detailed construction staging plan based on their anticipated approach to construction activities. This plan and implementation will be the responsibility of the Contractor. Final approval of the staging plans and revisions thereof must be granted by ACHD prior to implementation.

Staging plans that may be contained within the project plans are primarily for bidding purposes only.

The Contractor may utilize any staging plans contained within the bid documents as a basis for staging, but the final staging plan will be provided by the contractor prior to construction activities.

The cost associated with providing the necessary staging plans will be considered incidental to the project and no additional compensation will be made.

9. CONTROLLED BLASTING

No bedrock or boulders were encountered during the geotechnical investigation. Controlled blasting has been included in the contract in the event other methods of excavation are not suitable to install pipe or other subsurface drainage facilities. Submit a blasting plan for approval by the Engineer prior to drilling blast holes. Repair to utility infrastructure damaged by blasting shall be made at the contractor’s expense.

10. DAMAGED AREAS BEYOND SPECIFIED CONSTRUCTION LIMITS

Damage to any areas or items not specifically identified for removal, including the existing pavement, sod, sprinklers and landscaping in the contract documents shall be promptly repaired by the contractor. The cost to complete such repairs shall be considered incidental to the cost of the

11. EXCESS SITE MATERIAL

The Contractor shall be responsible for providing a site for the disposal of excess or unsuitable materials. If bituminous material is to be disposed of, the site shall meet the requirements of the Idaho Department of Environmental Quality. All excess material sites shall be approved by ACHD. No separate payment will be made for the acquisition or operation of the sites, or for loading, hauling or unloading the materials at the site.

12. FIBER OPTIC NETWORK

Interruption of ACHD's fiber optic network shall only be permitted as weekend work. Disruption shall occur no earlier than Friday at 10pm and shall be returned to service no later than on Monday at 5am. The contractor shall provide a minimum two (2) week notice prior to the start of any work that may impact ACHD's network for review. Depending on the impact to the District or partnering agencies, ACHD reserves the right to modify the requested dates for the scheduled outage. Contact Brian Froberg at (208) 941-9132 for Brian Thies at (208) 484-3926 to schedule work.

13. INFORMATION GIVEN PRIOR TO AWARD

Oral explanations, instructions and interpretations given to bidders prior to award of contract will not be binding. It is the ACHD’s intent to provide all bidders equal opportunity to access and acquire all available pertinent information necessary to formulate a responsive bid. Any information, specifications, plans, data, or interpretations that ACHD discovers is lacking and may be important to all bidders will be furnished in the form of an addenda, the receipt of which shall be acknowledged by the bidder.

14. ON-SITE SUPERVISION

The General Contractor shall provide competent supervision during all construction activities, including SUBCONTRACTORS activities. The superintendent shall be identified at the preconstruction conference and shall at a minimum be on-site from the notice to proceed date to the completion date. If for any reason the superintendent needs to be replaced by the General Contractor, a written notice must be submitted to ACHD within (5) five working days before the event occurs.

15. PAY QUANTITIES

By the 25th of each month the Contractor shall supply quantities that are to be paid for that month.

Each bid item shall be accompanied with the appropriate backup documentation on how the pay quantity was calculated. This shall include such documentation as, but not limited to; stationing, location, tallied weight tickets, sketch of calculated areas, and/or any other appropriate documentation to verify the pay quantity request. ACHD will verify quantities prior to remitting payment. Items failing to have the appropriate backup supporting documentation will not be paid until the information is supplied. The cost associated with providing the above outlined documentation shall be considered incidental to the project and no additional compensation will be granted.

All Pay quantities shall also adhere to the criteria outlined in General Condition 41 – MANNER OF

PAYMENT.

16. POWER SUPPLY

If indicated on the plans or directed by ACHD, the Contractor shall install a three-wire electrical service to be used at 120/240 volts, single phase, 60 hertz AC between the power supply and the service cabinet. The Contractor shall install a junction box a maximum of two (2) feet from the power supply. The distance from the power source to the service cabinet shall not exceed 300’ without approval from the ACHD Signal Coordinator. The Contractor shall coordinate with Idaho Power for the power connection location. The District shall be responsible for all Idaho Power fees related to power supply and connection. The Contractor shall have Idaho Power submit paperwork to the ACHD Utility Coordinator for the connection a minimum of sixty (60) working days prior to activating the new power supply. The contractor shall be responsible for all electrical permit fees.

17. PROPERTY OWNER COORDINATION

Contractor shall coordinate items of work affecting adjacent property owners, including but not limited to landscape removal and replacement, sprinklers, irrigation facilities, fencing, sod care, and trees. Property access coordination shall be conducted according to General Condition 49 –

PROPERTY ACCESS POINTS.

18. RE-TESTING OF MATERIALS

Re-testing necessitated by the failure of quality assurance testing of materials placed by the contractor shall be at the contractor’s expense. These costs shall be deducted from progress estimates.

19. SHOP DRAWING REVIEW

Plans show details of all structures, lines, grades, typical cross sections of the roadway, location and design of all structures and a summary of items appearing on the proposal. The Contractor shall keep one set of plans available on the work site at all times.

The Contractor will supplement the plans by such working drawings necessary to adequately control the work. Working drawings shall be submitted to the Engineer for review in advance of the start of the proposed work. The Contractor shall allow sufficient Engineer review time and corrections resubmitted by the Contractor without impacting the approved construction schedule. The drawings shall be on sheets measuring 22 in. x 34 in. Unless otherwise stated in the contract, the Engineer will require up to 15 business days from the date the submittals or re-submittals are received until they are returned to the Contractor. No extension to contract time will be given due to re-submittals or the failure of the Contractor to provide any information necessary in a timely fashion. If necessary, drawings will be signed and sealed by a Professional Engineer licensed to practice in the State of Idaho.

This review time will increase if the drawings submitted do not meet the contract requirements or contain sufficient details.

For structures, six sets of working drawings shall be furnished and shall include stress sheets, shop drawings, erection plans, coffer dam plans, bending diagrams for reinforcing steel, or any other supplementary plans or similar data required of the Contractor. All structural drawings provided shall be sealed by a Professional Engineer licensed to practice in the State of Idaho.

Working drawings shall be approved before beginning the work covered by the submitted drawings.

Such approval is only for general conformance with the information given in the contract documents and does not relieve the Contractor of responsibility for correctness of the details and dimensions, nor does it waive any requirements of the specifications.

The contract price shall include the cost of furnishing all submitted shop and/or working drawings.

20. SITE CLEANUP

Upon completion of all work, the Contractor shall clean the entire construction site. Final clean up shall consist of removal of all construction debris, trash, remaining construction stakes, construction signs, etc. from the site. The Contractor shall sweep all sidewalks and streets as necessary to remove any soil, rocks, gravel or other materials. The Contractor shall clean all catch basins and manholes removing any sand, dirt, gravel or debris. Final cleanup shall be considered incidental to the project and no separate payment will be made.

21. SOURCES

Contractor is to use approved commercial sources for all uncrushed aggregate, crushed aggregate, hot plant mix asphalt pavement, and concrete aggregates.

22. STORMWATER FLOWS

The Contractor is responsible for transmitting existing stormwater and irrigation flows during construction. All costs associated with transmitting existing flows, including flows from the temporary water quality best management practices on the project, shall be considered incidental to other items of work and no additional compensation will be made.

23. STORM WATER MANAGEMENT

Contractor shall implement controls to protect storm sewer systems & waters of the U.S. located on or near project limits. Contractor to follow requirements of the National Pollutants Discharge Elimination System (NPDES) as issued to the Ada County Highway District by the EPA. The contractor is required to implement and maintain said plan through life of contract. The removal of all temporary construction Best Management Practices (BMPs) after completion of all required work to final stabilization is considered incidental to this project.

The ACHD Construction Site Discharge Control (CSDC) Plan shall meet the CSDC Program requirements listed in Sections 8305 to 8306 of the ACHD Policy Manual. The CSDC Plan shall include measures to protect the existing ACHD storm drain systems inside and outside the project boundaries from mud, dust, debris, and other pollutants generated or transported due to this project. All measures will also be implemented to protect any “Waters of the United States” inside or outside of the project boundaries. “Pollutants” are defined in Section 8302 of the ACHD Policy Manual.

BMPs for controlling pollutant transport from the construction site and activities can be found in a number of publications and locations including, but not limited to:

a) Idaho Department of Environmental Quality, Idaho Catalog of Storm Water Best

Management Practices: Phone: (208) 373-0502 or on the internet:

https://www.deq.idaho.gov/water-quality/wastewater/storm-water/

b) United States Environmental Protection Agency – Region 10: (800) 424-4372 or on the internet at: www.epa.gov/r10earth/stormwater.htm https://www.deq.idaho.gov/water-quality/wastewater/storm-water/ http://www.epa.gov/r10earth/stormwater.htm

c) Boise City Planning and Development Services: phone: (208) 395-7818

d) Idaho Transportation Department, Erosion and Sediment Control Manual, phone: (208)

334-8476

Payment for this item will be made under the appropriate bid item numbers.

24. SUBGRADE

It shall be the Contractor’s responsibility to maintain the integrity for the exposed subgrade.

Degradation due to his operations or weather shall be remedied under the guidance of a geotechnical engineer.

All costs to maintain and repair including, geotechnical engineering, etc. shall be incidental to the

25. TRAFFIC CONTROL

Contractor shall furnish ACHD with a detailed traffic control plan based on their anticipated approach to construction activities. This plan and implementation will be the responsibility of the contractor.

Final approval of the traffic control plan and revisions thereof must be granted by ACHD prior to implementation. It will be the sole discretion of the ACHD Resident Engineer, or designated representative, to determine if the advanced construction signing plan contained in the contract documents shall be approved as a traffic control plan.

Traffic control plans and/or advanced construction signing plans that may be contained within the project plans are primarily for bidding purposes only.

Local and emergency vehicle access shall be maintained at all times, unless otherwise indicated in the contract documents. All traffic control items not specifically listed in the bid schedule shall be incidental to this contract, and no additional compensation will be made. Short term lane closures shall be only as approved by the Resident Engineer.

26. TRENCHING

All excavation and trenching shall meet OSHA requirements. Trenches shall be backfilled and properly compacted, closed at the end of each day, and barricaded, as needed.

27. TRUCK/TRAILER LOAD COVERAGE

All loads of gravel, sand, dirt, landscape bark, and other loose material hauled on the public roadway within Ada County by the Contractor or any of its subcontractors, shall be covered and properly secured so as to prevent the load from dropping, sifting, leaking, or otherwise escaping from the vehicle or becoming loose, detached, or in any manner a hazard to other uses of the public roadway.

Each violation of this requirement shall be subject to liquidated damages in an amount no less than $500.00 and no more than $1,000.00 as determined by ACHD, and such liquidated damages shall be cumulative and in addition to any other liquidated damages that might be imposed upon the Contractor.

28. WARNING AND REGULATORY SIGNS

Existing warning and regulatory signing shall be retained and protected throughout the project limits unless otherwise noted. This may require multiple relocations, which will be incidental to other bid items. Existing warning and regulatory signs that are designated for removal and replacement and do not conflict with construction traffic control signs shall be maintained during construction and, if necessary, relocated to locations where the signs are visible to traffic and serve their original purpose.

29. WORKING HOURS

Unless otherwise specified here the Regular working hours for this contract shall adhere to the criteria outlined in General Condition 40 – WORK HOURS/TIME OF COMPLETION.

30. QUALITY CONTROL/QUALITY ASSURANCE

SECTION 100 – General Conditions

Add the following:

Ada County Highway District Quality Control and Quality Assurance Procedure

Definitions

Quality Assurance (QA) is defined as the process or set of processes used to measure and assure the quality of a product and/or workmanship. This encompasses ACHD’s oversight of the Developer’s/Contractor’s processes and materials. This includes review of the inspector, sampler, tester and laboratory qualifications (per ACHD Independent Assurance Program defined below);

verifying the results of the quality control and process control testing; and inspecting for conformance to plans and specifications.

Quality Control (QC) is defined as the actions necessary to produce quality workmanship and materials. QC includes, but should not be limited to, inspection of the production and placement operations, quality control and process control testing and inspection of the finished product. QC is the responsibility of the Developer/Contractor. No separate payment will be made for this work. If quality control testing is not being performed at the required frequency, ACHD may stop production of work until the tests are supplied, or ACHD determines the work can proceed.

Quality Control Testing and Process Control Testing are defined as the testing and inspections conducted by the Developer/Contractor to determine if the construction materials have been produced and placed in compliance with the project specifications and applicable standards. Process control testing is conducted to demonstrate that the construction materials being produced and used continue to meet the requirements for the product.

Independent Assurance Program (IAP) is the process provided by ACHD, through trained and certified staff, to ensure that all testing is performed correctly, and testing equipment is functioning and calibrated properly.

Acceptance is determined by the QA test results, in combination with the assurance that the Developer/Contractor has satisfied the specification requirements for materials quality and workmanship, with the exception of Superpave Hot Mix, as specified below. In addition to the specified testing results, visual inspection of the end product is also taken into consideration in determining acceptance. Acceptance will be determined by ACHD. All samples required for QA testing will be supplied by the Developer/Contractor to ACHD. Prior to obtaining a sample for QA testing, ACHD shall be notified of when and where the sample will be taken from. ACHD will determine if it needs to witness the obtaining of the QA sample. Superpave Hot Mix acceptance shall be based on ACHD’s supplement to the ISPWC Section 814 under Part 4.2.

Construction Testing and Inspection Responsibilities

Quality Control

A. The Developer/Contractor shall be responsible for the Quality Control of all construction processes and materials quality. The Developer/Contractor will be responsible for quality throughout the construction process. Therefore, the Developer/Contractor must ensure that the materials and workmanship provided by themselves, Subcontractors, Suppliers, and Producers meet all pertinent specifications. All tests listed under Quality Control in the Minimum Testing Frequency Table are required for quality control, however only tests listed as Acceptance shall be used in determining pay.

B. The Quality Control laboratory must be approved by the Idaho Transportation Department. All testing personnel and facilities used by the Developer/Contractor must be currently certified by the

Western Alliance for Quality Transportation Construction (WAQTC) and by the ACHD Independent

Assurance Program. All test results must be supplied to ACHD the next working day after the test was performed. All Quality Control tests will be supplied to ACHD directly from the lab performing the tests. Tests results shall have the ACHD project/permit number listed and be sequential.

C. Quality Control Testing must occur in a random frequency and at a minimum, at the intervals specified in the table provided in the corresponding ISPWC sections. The Developer/Contractor shall determine the random locations. Upon request, documentation must be supplied showing how the random numbers/locations were determined by the Developer/Contractor. All random sampling for

ACHD will be done by the Developer/Contractor and witnessed by an ACHD representative.

D. For gradation testing by the Developer/Contractor during production, each sample size shall be taken per AASHTO T2, except the sample size shall be doubled. The sample obtained shall be split in accordance with AASHTO T248, and half of it shall be marked with an ID number and tested by the

Developer/Contractor. The other half of the sample shall be sealed in a canvas sack or plastic bucket, and marked with the ID number, stored in a weather protected container, and reserved for use in retesting if needed. Material shall be retained until written notification is given by ACHD that it can be discarded.

E. Acceptance, gradation, binder content and volumetrics for plant mix pavement and/or Superpave

Hot Mix asphalt shall be performed on the loose mix sampled from the roadway, haul unit, or an approved sampling method at the Hot Plant. At the start of each project the location for sampling shall be determined by ACHD and all samples for the project shall be obtained from that determined location. The hot mix sample used for asphalt binder content, gradation and volumetric testing shall be doubled in size. The sample shall be split in accordance with AASHTO R47 and half of the sample shall be used for the appropriate testing. The other half of the sample shall be sealed in a box, marked with the sample ID number, stored in a weather protected enclosure, and reserved for use in retesting if needed. Material shall be retained until written notification is given by ACHD that it can be discarded.

Quality Assurance

A. ACHD shall oversee the Developer’s/Contractor’s fulfillment of the QC requirements, and independently verify that the QC test results being submitted by the Developer/Contractor are representative of the workmanship and product quality. ACHD will also be responsible for determining general project acceptance based on conformance to the approved plan and specifications.

B. ACHD will perform random Quality Assurance testing at the intervals specified in Minimum Testing

Frequency table.

C. Acceptance of material will be based on the Quality Assurance test performed by ACHD. If no QA test is performed, acceptance will be based on the QC tests results and inspections as determined by

ACHD.

D. ACHD will perform random inspections of material storage and handling practices.

Dispute Resolution

A. The dispute resolution process is to resolve differences between the Developer/Contractor and

ACHD when a disagreement regarding the test results occurs.

B. When a failing QA test occurs, production may be suspended until the differences are resolved and

ACHD is satisfied.

C. ACHD may run one or more tests of the split material from the QC process to help resolve differences.

D. When ACHD and the Developer/Contractor are unable to resolve the differences, a Third Party prequalified independent lab shall be brought in to verify testing.

E. ACHD will hire the Third-Party independent lab. If ACHD tests are found to coincide with the independent lab, ACHD will not grant additional contract time due to any delays in production and the Developer/Contractor shall bear the costs associated with the Third-Party resolution. Likewise, if the Developers/Contractors tests are found to coincide with the independent lab, ACHD will bear the costs associated with Third Party resolution and will grant additional time for any delay caused by this additional testing.

F. For hot mix density dispute testing, cores shall be obtained by the Third Party from the same locations as the nuclear gauge tests.

Independent Assurance Program

A. ACHD practices the standards of the Western Alliance for Quality Transportation Construction

(WAQTC).

B. ACHD Independent Assurance personnel may observe testers and verify that the equipment and techniques used for the required testing are calibrated and performing accurately, per WAQTC.

During construction, it may be necessary for an IAP representative to verify the reliability of the tester by witnessing sampling and testing, and by splitting samples and comparing results.

C. All independent testing laboratories to be used shall be pre-qualified by ACHD prior to construction.

To request an inspection and certification, contact the ACHD Lab Coordinator at 387-6310 to schedule. Laboratories that are currently certified by the Idaho Transportation Department (ITD) can provide ACHD with their current certification as confirmation of qualification. In the event that the lab is ITD certified; a facility inspection by ACHD IAP personnel may still be required.

Price Adjustment for Non- Compliant Materials or Products

A. When material fails to meet the required specifications, they will be subject to a price adjustment or rejection. ACHD may also request a lengthened warranty period.

B. ACHD will, in its sole, discretion determine the price adjustment or rejection.

C. The determined price adjustment or rejection of material shall be applied to the quantity of material that is represented by the non-compliant test results, as outlined in the Minimum Testing Frequency table.

Minimum Testing Requirements

A. The requirements outlined herein are the established minimum acceptance requirements for materials used in standard applications and paid for under standard bid items. For special provision items, material used in non-standard, non-roadway, temporary applications, or small quantities of materials, alternative materials acceptance requirements will be determined as discussed herein or as specified in the contract documents, or as otherwise approved by ACHD. Material placed without appropriate testing shall be subject to a price deduction or rejected as determined by ACHD.

B. Minimum testing frequencies are included in the Minimum Testing Frequency table. The

Developer/Contractor frequencies may only be altered by Change Order approved by ACHD. ACHD may elect to increase its own testing frequency at any time. Testing frequency should be increased when accepting material from newly developed sources or those with varying results.

C. Material source approval requirements are not listed in this document. All fill and aggregate material imported to the project must be obtained from ACHD or ITD approved materials sources.

D. Based on inspection and without regard for testing frequency, ACHD may isolate and reject obviously defective material.

E. When the material is not listed in the Minimum Testing Frequency table and not identified in the

ISPWC, acceptance shall be determined by ACHD.

F. When the material is required by the Contract to meet a given specification, such as ASTM or

AASHTO, acceptance of material will, at a minimum, require a manufacturer’s certification. A partial list of such material is outlined in the List of Miscellaneous Material Accepted on the Basis of

Manufacturer’s Fabricator’s Certification.

Small Quantities

A. ACHD may accept small quantities of certain materials without sampling and testing. The determination to accept materials using this provision rest solely with ACHD.

B. The following are not eligible for small quantity acceptance:

i. Concrete with a specified strength of greater than 3000 psi.

ii. Paving on the roadway with quantities above 100 ton.

C. Materials may be accepted as a small quantity if the estimated quantity is less than the minimum QC testing frequency. The small quantity exception may be used on pavement items such as small patches, utility repairs, pavement placed outside the traveled way (driveways, approaches, mailbox turnouts, asphalt sidewalk and curb), and temporary pavement.

D. The minimum requirements that must be met for small quantities includes approved sources, mix design, material certifications, inspection, and a core for density acceptance of mainline and intersection paving less than 100 tons.

ROADWAY SPECIAL PROVISIONS

1. 202.4.1.A.1 – EXCAVATION (PLAN QUANTITY)

ON PAGE 14 OF SECTION 202 OF THE ISPWC, PART 4.1.A, replace the entire section with the following:

This item shall be paid for by the cubic yard on a plan quantity basis with no final measurement, for which the price and payment shall constitute full compensation for excavating, loading, hauling, spreading, blending, shaping, drying, watering and compacting excavated material that is acceptable for the use as on-site borrow for embankment fill, and for all tools, labor, equipment, materials and incidentals necessary to complete the work and all appurtenances not itemized on the Bid Schedule.

Payment for this item will be made under:

202.4.1.A.1 – Excavation (Plan Quantity).………………………………………………………………………Per Cubic Yard

2. 202.4.4.A.1 – CONTROLLED BLASTING

ON PAGE 5 OF SECTION 202 OF THE ISPWC, PART 3.3.A, add the following:

4. Controlled Blasting for subsurface storm drain, irrigation or water line infrastructure consists of shooting a series of line holes along the excavation line of the pipe or trench construction.

ON PAGE 17 OF SECTION 202 OF THE ISPWC, PART 4.4.A, replace the section with the following:

A. Controlled Blasting: By the linear foot measured horizontally along the pipe or infiltration trench centerline, along the finished slope parallel with the blasting limits or as designated on the Contract Documents. Includes full compensation for all materials, labor and equipment necessary for completing the work, removal of all blasted material, and all appurtenances not itemized on the Bid Schedule including pre-splitting and/or cushion blasting.

1. Bid Schedule Payment References: 202.4.4.A.1

2. Bid Schedule Description: Controlled Blasting...linear foot (LF)

3. 202.4.5.A.1 – UNSUITABLE MATERIAL EXCAVATION (PLAN QUANTITY)

ON PAGE 17 OF SECTION 202 OF THE ISPWC, PART 4.5.A, add the following:

ITEM 29, “VARIATIONS IN QUANTITIES”, ON PAGE GC15 OF THE ACHD GENERAL CONDITIONS, SECOND PARAGRAPH, shall not apply to the 202.4.5.A.1 bid item.

Payment for this item will be made under:

202.4.5.A.1 – Unsuitable Material Excavation (Plan Quantity).………………………………………Per Cubic Yard

4. 402.4.1.A.1 – VALVE – SIZE 2” – TYPE BLOW OFF ASSEMBLY

ON PAGE 3 OF SECTION 402 OF THE ISPWC, PART 2.5.A, replace the section with the following:

A. Refer to City of Kuna Standard Drawing K-405.2 – 2” Blow-Off Detail.

5. 601.4.1.A.5.6A – 6” Irrigation Sleeve, Class SDR35 PVC

ON PAGE 7 OF SECTION 601 OF THE ISPWC, PART 3.3.B, replace this section with the following:

B. Contractor shall furnish and provide pipe markers at stub-outs per Standard Drawing SD-512 – Standard Service Marker.

6. 705.4.1.A.1.A – PORTLAND CEMENT CONCRETE PAVEMENT – CLASS 4000A

705.4.1.A.1.B – PORTLAND CEMENT CONCRETE PAVEMENT (COLORED) – CLASS 4000A

ON PAGE 2 OF SECTION 705 OF THE ISPWC, PART 2, add the following:

2.6 COLORED PORTLAND CEMENT CONCRETE PAVEMENT

A. Furnish colored concrete pavement with the color 238 Thyme Solar Reflective Index (SRI) 44 where noted on the plans. Apply broom finish to concrete per Section 705.3.5.N.

ON PAGE 9 OF SECTION 705 OF THE ISPWC, PART 4.1, replace the entire section with the following:

4.1 Measurement and Payment for Portland cement concrete pavement includes forming, finishing, rebar, dowels, concrete, curing, joints, hauling, additives for color, and placing required for installation to the lines and grades shown the Contract Documents. If required and not listed on in the Bid Schedule, the following Bid Items are to be considered incidental to other bid items.

B. Portland Cement Concrete Pavement: By the square yard installed for the class and thickness of pavement specified.

1. Bid Schedule Payment Reference: 705.4.1.A.1.A

2. Bid Schedule Description: Portland Cement Concrete Pavement– Class 4000A )……………...…………………………………………….…………………………………… Square Yard (SY)

A. Portland Cement Concrete Pavement (Colored): By the square yard installed for the class and thickness of pavement specified.

1. Bid Schedule Payment Reference: 705.4.1.A.1.B

2. Bid Schedule Description: Portland Cement Concrete Pavement (Colored) – Class 4000A)………………..…………………………………….………………………………. Square Yard (SY)

7. 706.4.1.F.1 – CONCRETE DRIVEWAY APPROACH

ON PAGE 7 OF SECTION 706 OF THE ISPWC, PART 4.1.F, add the following:

This item includes all labor, equipment and materials necessary to construct a 6” thick concrete driveway approach as shown on project plans. The contractor shall limit any driveway closures to 3‐ days without prior approval from ACHD and the Property Owner.

Excavation & gravel base shall be paid separately.

Payment for this item will be made under:

706.4.1.F.1 – Concrete Driveway Approach.…………………………………………….................... Per Square Yard

8. 706.4.1.H.1 – PEDESTRIAN RAMP W/ DETECTABLE WARNING DOMES

ON PAGE 7 OF SECTION 706 OF THE ISPWC, PART 4.1.H, add the following:

This item shall include all costs associated with completion of the required concrete pedestrian ramps. All pedestrian ramps shall have a five (5) or ten (10) foot wide throat. All pedestrian ramps shall include full width precast concrete truncated domes as shown on the project plan sheets. Refer to ISPWC standard drawings SD-712* and ACHD Supplementals for additional details. All pedestrian ramps shall be constructed in full compliance with current requirements of the Americans with Disabilities Act (ADA). Truncated domes are considered incidental to this bid item and no additional compensation will be granted.

Payment for this item will be made under:

706.4.1.H.1.A.A – Pedestrian Ramp w/ Detectable Warning Domes, Type A…………………………Per Each

706.4.1.H.1.C.C4 – Pedestrian Ramp w/ Detectable Warning Domes, Type C4………………………Per Each

706.4.1.H.1.G.G – Pedestrian Ramp w/ Detectable Warning Domes, Type G………………………….Per Each

9. 802.4.1.A.1 – CRUSHED AGGREGATE FOR BASE - TYPE I (PLAN QUANTITY)

ON PAGE 7 OF SECTION 802 OF THE ISPWC, PART 4.1, add the following:

Material will be calculated using plan quantity.

Payment for this item will be made under:

802.4.1.A.1 – Crushed Aggregate Base - Type I (Plan Quantity)…..…………………………………Per Cubic Yard

10. 802.4.1.A.1.A – CRUSHED AGGREGATE FOR BASE - TYPE DRAIN ROCK, 2” Minus

ON PAGE 3 OF SECTION 802 OF THE ISPWC, PART 2.2, add the following:

H. Crushed Aggregates used for drain rock shall have a minimum 50% crushed or fractured face (at least on one side) and meet the gradation shown in the table below.

1. AASHTO T 2: Sampling Aggregates

2. AASHTO T 11: Materials Finer than No. 200 Sieve in Mineral Aggregates by Washing.

3. AASHTO T 27: Sieve Analysis of Fine and Coarse Aggregates

TABLE 2

CRUSHED AGGREGATE FOR BASE TYPE DRAIN ROCK GRADATIONS

PERCENTAGES BY WEIGHT PASSING SQUARE MESH SIEVES

NOMINAL MAXIMUM SIZE: 2 inch

SIEVE SIZE PERCENT PASSING

3 inch 100%

¾ Inch 25-60%

3/8 Inch 0-4%

No. 200 0-2%

11. 814.4.1.A.1 – PLANT MIX PAVEMENT – SUPERPAVE SP-3

REFERENCE 2017 ACHD SUPPLEMENT TO THE 2017 ISPWC

SP-3 plant mix asphalt pavement shall utilize PG 64-28 liquid asphalt with 0.5% anti-strip. The aggregate shall have a nominal maximum aggregate side of 1/2” (inch).

814.4.1.A.1 – Plant Mix Pavement – Superpave SP-3………………………………………………………………….Per Ton

12. 1003.4.1.B.1 – BIOFILTER BAG (FIBER WATTLE)

ON PAGE 3 OF SECTION 1003 OF THE ISPWC, PART 4.1.B, add the following:

ITEM 29, “VARIATIONS IN QUANTITIES”, ON PAGE GC15 OF THE ACHD GENERAL CONDITIONS, SECOND PARAGRAPH, shall not apply to the 1003.4.1.B.1 bid item.

1003.4.1.B.1 – Biofilter Bag (Fiber Wattle)……………………………………………………………………Per Linear Foot

13. 1103.4.1.B.1 – TRAFFIC CONTROL SIGNS

ON PAGE 7 OF SECTION 1103 OF THE ISPWC, PART 4.1.B, add the following:

Provide and install Class “A” construction signing to direct vehicular traffic in and around the project site, including informational signage, per the MANUAL ON UNIFORM TRAFFIC CONTROL DEVICES, most current edition. Signs that will be in place longer than 3 days shall be permanent sign installations.

Contractor shall bag or cover signs when not in use. Contractor shall refer to the ATSSA pamphlet called Quality Standards for Work Zone Traffic Control Devices.

Payment will be made by the square foot of sign acceptably installed, initial installation only.

1103.4.1.B.1 – Traffic Control Signs………………………………………………………………………………Per Square Foot

14. 1131.01.01 – TRAFFIC SIGNAL AND ILLUMINATION SYSTEM

ON PAGE 8 OF THE ACHD DIVISION 1100 SUPPLEMENTAL PROVISIONS SUBSECTION 1130.03.E – USE TAX, add the following:

Proj. # 321038 – Ten Mile Road/Deer Flat Road School Zone Flasher – Item 1131.01.01

Item Number

Item Description Quantity Supplied By

1 Pole, steel, 18-foot traffic signal pole including anchor bolts: (Pole A)

Cost = $10,045.00 Each

1 ACHD

2 Traffic signal head, two-section, 12-inch, LED single color ball (yellow, yellow) with 5-inch backplate including astro-bracket. (Signal Head Nos. 41, 42, and 81)

Unit Cost: $448.00 Each

3 ACHD

3 Mast arm and pole mounted signs with mounting brackets: Mounting brackets for mast arm mounted signs to be Pelco Atro Sign Bracket AB-0218 or an ACHD approved equal.

2 – S5-1 (24” x 38”)

Per Plan Contractor

4 Wire copper: Stranded 600V, AWG No. 3/0 THWN, No. 6 THWN, No. 8 THWN, No. 12 THWN and No. 6 Bare.

Per Plan Contractor

5 12-conductor signal cable (600V, No. 14 stranded copper), (600V, No. 14 stranded copper), 5-conductor signal cable (600V, No. 14 stranded copper), 5-conductor signal cable (600V, 3-No. 14 stranded copper, 2-No. 16 stranded copper).

Per Plan Contractor

6 Concrete junction box, to be Idaho Precast Concrete Type S45T/ADA or approved equal.

Per Plan Contractor

Concrete junction box, to be Idaho Precast Concrete Type S45T/ADA w/riser or approved equal.

Concrete junction boxes, to be Idaho Precast Concrete TypeS40T/ADA or approved equal.

7 Miscellaneous items: Includes foundations for poles, service pedestal and signal cabinet, conduit elbows, wire splices, connections, fuses, miscellaneous hardware and other items necessary to complete the installation as depicted in the plans, ACHD supplemental provisions and these special provisions.

Estimated signal equipment to be supplied by ACHD.

Total Estimated Cost: $11,389.00

Total ACHD

15. 1131.01.01.A – RECTANGULAR RAPID FLASHING BEACON – COMPLETE

Proj. # 321038 – Ten Mile Road/Deer Flat Road Rectangular Rapid Flashing Beacon (RRFB) Item 1131.01.01.A

Item Number

Item Description Quantity Supplied By

1 Size 5 TS2-1 Controller Cabinet: supplied with all related equipment, relays, load switches, 8 port Ethernet switch (Etherwan 72102 = A0B with din rail), and Fiber Optic 24 position blank Wic Cabinet.

Cost = $12,500 each

1 ACHD

2 Electric Service Pedestal: 200 Amp entrance 100 AMP (dual meter) pedestal (traffic signal and lighting service) to include dual meter bases. (Includes anchor bolts).

Unit Cost: $4,602.00 Each

1 ACHD

3 Pole, steel, 12-foot Pedestrian Mounting pole including anchor bolts: (Poles A, B, C, D, E, F, G, H, I, J, K, L, M, N, O and P)

Cost = $1,862.00 Each

16 ACHD

7 Breakaway Pole Base: (Poles A, B, C, D, E, F, G, H, I, J, K, L, M, N, O and P)

Cost = $175.00 Each

16 ACHD

8 Rectangular Rapid Flashing Beacon Head: Includes Astro-bracket

Cost = $477.00 Each

16 ACHD

9 Rectangular Rapid Flashing Beacon Controller: includes pole mounted cabinet and mounting equipment.

Cost = $672.00 Each

4 ACHD

APS Pedestrian Push-Button Assemblies: to include mounting assemblies, push-button and sign decals

Cost = $440.00 Each

8 ACHD

21 Mast arm and pole mounted signs with mounting brackets: Mounting brackets for mast arm mounted signs to be Pelco Atro Sign Bracket AB-0218 or an ACHD approved equal.

16 – W11-2 (36” x 36”)

8 – W16-7pR) (24”x12”)

8 – W16-7pL) (24”x12”)

Per Plan Contractor

22 Wire copper: Stranded 600V, AWG No. 3/0 THWN, No. 6 THWN, No. 8 THWN, No. 12 THWN and No. 6 Bare.

Per Plan Contractor

23 12-conductor signal cable (600V, No. 14 stranded copper), (600V, No. 14 stranded copper), 5-conductor signal cable (600V, No. 14 stranded copper), 5-conductor signal cable (600V, 3-No. 14 stranded copper, 2-No. 16 stranded copper).

Per Plan Contractor

24 Concrete junction box, to be Idaho Precast Concrete Type

Per Plan Contractor

25 Miscellaneous items: Includes foundations for poles, service pedestal and signal cabinet, conduit elbows, wire splices, connections, fuses, miscellaneous hardware and other items necessary to complete the installation as depicted in the plans, ACHD supplemental provisions and these special provisions.

Estimated signal equipment to be supplied by ACHD.

Total Estimated Cost: $63,534.00

16. 1131.01.06 – INSTALL STREET LIGHT

Proj. # 321038 – Ten Mile Road/Deer Flat Illumination & Interconnect, Item 1131.01.06

Item Number

Item Description Quantity Supplied By

1 Luminaire pole, steel, 40-foot: To be furnished with one 15-foot luminaire mast arm.

Cost = $3,146.00 each

18 ACHD

2 Luminaire pole, steel, 40-foot: To be furnished with one 6-foot luminaire mast arm. (Pole 2)

Cost = $2,853.00 each

1 ACHD

3 Luminaire: 240V service, adjustable drive LED, Cooper Lighting Navion LED Part Number NAV-SA3A-740-U-T3-BK- PR7-FADC or approved equal.

Cost = $205.00 Each

19 ACHD

4 2-inch rigid plastic conduit (RPC) Per Plan Contractor

5 Wire copper: Stranded 600V, AWG No. 3/0 THWN, No. 6 THWN, No. 8 THWN, No. 12 THWN and No. 6 Bare.

Per Plan Contractor

6 Locate wire: #12 Standard Copper Per Plan Contractor

7 Concrete junction box, to be Idaho Precast Concrete Type

Per Plan Contractor

8 Miscellaneous items: Includes foundations for poles, service pedestal and signal cabinet, conduit elbows, wire splices, connections, fuses, miscellaneous hardware, and other items necessary to complete the installation as depicted in the plans, ACHD supplemental provisions and these special provisions.

Per Plan Contractor

Estimated illumination and interconnect equipment to be supplied by ACHD.

Total Estimated Cost: $63,376.00

17. 2030.4.1.A.1.A – MANHOLE – TYPE SEWER, ADJUST TO GRADE

ON PAGE 7 OF SECTION 2030 OF THE ISPWC, PART 4.1.A, add the following:

The cost of rotating a cone section of a manhole to avoid conflicts with other features is considered incidental to this bid item and no additional payment will be made.

18. SP 06004.A– SEEPAGE…

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