14-General Notices, Notes and Information.pdf

https://v3.camscanner.com/user/download Windepa.Guissou Text Box

Windepa.Guissou Text Box

Table of Contents

1. Scope of Work

2. General Notice to Contractors

3. Notice to Contractors – TBPE Policy

4. Notice to Contractors – Material Hauling

5. Notice to Contractors – SWQ and Env Issues

6. Notice to Contractors – TPDES NOI Forms and Fees

7. Notice to Contractors Bidding Traffic Signal Installations

8. Notice of Specifications

9. Special Provision to Standard Spec 686

10. Special Provision to Standard Spec 689

11. Special Provision to Standard Spec 694

12. Special Provision to Standard Spec 699

13. Special Provision to Standard Spec 1210

14. Special Spec 2071

15. Special Spec 6006

16. Special Spec 6009

17. Special Spec 6010

18. Special Spec 6011

19. Special Spec 8678

20. Special Spec 9011

21. TxDOT DMS 11132

22. TxDOT 680

23. TxDOT SMA-100(1)-12

24. TxDOT MA-C (ILSN)-12

25. All_Standard_Traffic_DWGS

26. Complete Federal Documents

SCOPE OF WORK

Project: On-Call Term Contract for Installation and Modification of Traffic Signal Systems and Related Improvements County-wide

The project consists of the following:

The Contractor may perform seven (7) types of construction for Traffic Signal Systems and Related Improvements, as directed by Harris County:

1.) New Traffic Signal System Construction

2.) Existing Traffic Signal System Modification Construction

3.) Turn Lane Construction

4.) Signing and Pavement Marking

5.) Fiber Optic

6.) Wireless Communication

7.) General Civil Construction

For additional information regarding the seven (7) types of construction for Traffic Signal Systems and Related Improvements see Special Specification 9011.

GENERAL NOTICE TO CONTRACTORS

In accordance with House Bill 1059, a minimum of 25% of the work to be performed on this project shall be performed by the Bidder.

Special Notice: By law, the original price on firm fixed price contracts may not be increased by more than 25%. The original price may not be decreased by 18% or more without the consent of the contractor. Please monitor additions to your contract -additions in excess of 25% will not be paid under any circumstances.

On public works projects, all contractors shall supply a list of all suppliers and subcontractors with addresses and phone numbers, prior to work commencing.

At the time of the scheduled preconstruction meeting, the successful bidder shall supply to the County a list of representatives signed by an Officer of the Company who are authorized to sign official documents, i.e., Purchase Orders, Change Orders, Final Estimates, etc.

In determining who is a responsible bidder, Harris County may take into account the past performance of the bidder on Harris County projects. Commissioners Court adopted a written definition and criteria for determining the performance of a contractor which may be considered in determining the responsibility of a bidder.

Harris County is using an internet-based Construction Program Management Software, e-Builder to maintain consistent administrative and technical control for its projects throughout the County. The Contractor is required to use e-Builder on this project in accordance with procedures provided by the County.

At no cost to the Contractor, the County will provide system login account(s) and provide training for Contractor personnel. The Contractor must update e-Builder with any new or changed information within 24 hours of that information becoming known to Contractor. The Contractor must have access to a computer with internet access and a scanner to use eBuilder.

May 2019

Notice to Contractors of

Texas Board of Professional Engineers Policy Advisory Regarding Procurement of Engineering Services By General Construction Contractors for Governmental Public Works Projects

On August 20, 2009, the Texas Board of Professional Engineers adopted a document entitled "Texas Board of Professional Engineers Policy Advisory Regarding Procurement of Engineering Services by a general Contractor for Governmental Public Works Projects". A copy of said Advisory is attached for information should the Contractor decide to obtain any professional engineering services in accomplishing this Project.

Adopted by the Texas Board of Professional Engineers August 20, 2009

Texas Board of Professional Engineers Policy Advisory Regarding Procurement of Engineering Services by General Construction

Contractors for Governmental Public Works Projects

August 20, 2009

Definitions:

Project Professional Engineer – Engineer(s) or engineering firms retained by a governmental entity to perform engineering services for a specific public works project.

General Construction Contractor – Private entity retained by a governmental entity to construct a public works project designed by the Project Professional Engineer.

Other Professional Engineers – Engineer(s) or engineering firms which may be retained by the General Construction Contractor or his subcontractors or vendors to fulfill engineering requirements of the project during the construction phase.

Background: The Dallas – Ft. Worth International Airport Board (DFWIAB) has requested clarification on the Texas Board of Professional Engineers’ (Board) interpretation of the Professional Services Procurement Act (PSPA) requirements contained in the Texas Engineering Practice Act (Act). In the course of complex public works projects, the need often arises for Other Professional Engineers to be engaged to perform tasks unforeseen by the Project Professional Engineers or tasks not authorized to be performed by the Project Professional Engineers since they would involve dictating the General Construction Contractor’s means and methods of construction. Examples of such engineering tasks include but are not limited to:

1) Trench safety plans.

2) Traffic control plans.

3) Temporary construction structures (crane foundations, for example).

Applicable Board Rules from the Act:

§137.53 Engineer Standards of Compliance with Professional Services Procurement Act

(a) A licensed engineer shall not submit or request, orally or in writing, a competitive bid to perform professional engineering services for a governmental entity unless specifically authorized by state law and shall report to the board any requests from governmental entities and/or their representatives that request a bid or cost and/or pricing information or any other information from which pricing or cost can be derived prior to selection based on demonstrated competence and qualifications to perform the services.

(b) For the purposes of this section, competitive bidding to perform engineering services includes, but is not limited to, the submission of any monetary cost information in the initial step of selecting qualified engineers. Cost information or other information from which cost can be derived must not be submitted until the second step of negotiating a contract at a fair and reasonable cost.

(c) This section does not prohibit competitive bidding in the private sector.

Source Note: The provisions of this §137.53 amended to be effective June 4, 2007.

§137.79 Standards for Compliance with Professional Services Procurement Act When procuring professional engineering services, a governmental entity and/or its representative(s) shall comply with the requirements of Subchapter A, Chapter 2254, Texas Government Code and shall select and award on the basis of demonstrated competence and qualifications to perform the services for a fair and reasonable price and shall not select services or award contracts on the basis of competitive bidding.

Adopted by the Texas Board of Professional Engineers August 20, 2009

Source Note: The provisions of this §137.79 amended to be effective December 21, 2008.

Analysis of Board Rules, Texas Administrative Code, Title 22, Part 6, Chapter 137: A reading of Board Rule 137.53 reveals that no language exists specific to the selection of Other Professional Engineers that may be required during the construction phase of the project and that would be selected by a General Construction Contractor. Rule 137.53 is specific, however, in that all professional engineers must not divulge cost information prior to being selected solely on their qualifications. The rule also requires licensed professional engineers to report to the Board any instance where a governmental entity and/or their representative requests cost information prior to the qualification based selection phase. The board would interpret a General Construction Contractor to be a representative of the governmental entity. Similarly, Board Rule 137.79 requires that governmental entities or their representatives use qualification based selection processes.

Process: If professional engineering services are required during the course of the project, the public entity or the General Construction Contractor must use qualification based selection to procure all engineering services regardless of when the services are required. The following language is used by the DFWIAB in their contract documents to communicate this requirement to their contractors and representatives:

Ancillary/ Integral Professional Services: In selecting an architect, engineer or land surveyor, etc., to provide professional services, if any, that are required by the specifications, bidder shall not do so on the basis of competitive bids but shall make such selection on the basis of demonstrated competence and qualifications to perform the services in the manner provided by Section 2254.004 of the Texas Government Code and so shall certify to the Board (DFWIAB) with its bid.

The above contract language covers instances where a General Construction Contractor’s means and methods would trigger the requirement for Other Professional Engineering services that were not performed by the Project Professional Engineers. Examples include traffic control plans for contractor controlled disruptions of normal traffic, or instances where Other Professional Engineering services would be sought to build a temporary crane foundation. The General Construction Contractor would use a qualification based selection process to select Other Professional Engineers and would certify in writing to the governmental entity that the QBS process was followed and no pricing or costing data was used in the process.

Limitations: The QBS process performed by General Construction Contractors described in this policy advisory is intended only for those limited instances where:

1) Engineering decisions or designs performed by the governmental entity’s Project Professional Engineer would interfere with the contractor’s means and methods of construction or

2) Unforeseen construction issues necessitate the services of Other Professional Engineers in the course of the project.

SPECIAL NOTICE TO CONTRACTORS

In the hauling of construction materials, excavation equipment or other items required in the completion of this project, the attention of prospective bidders is directed to ordinances and regulations of local, municipal, or county governments which limit the type or the gross weight of motor vehicle or construction equipment operating on public roads and streets or which restrict the use of such equipment on certain streets.

It will be the responsibility of prospective bidders to investigate any limitations in routing, size of equipment, or gross vehicle weights which may be subject to regulations by local governmental jurisdictions.

Attention of prospective bidders is also invited to the provisions of City of Houston Ordinance No. 62-888, dated June 20, 1962, which requires the licensing of vehicles which are used in the transportation of earth, sand, shell, gravel and similar construction or excavated materials.

Approved by Harris County Commissioners' Court July 23, 1962, Vol. 51.

NOTICE TO CONTRACTORS

ON STORM WATER QUALITY AND

ENVIRONMENTAL ISSUES

In addition to the regulatory requirements stated in the General Conditions, the Contractor shall recognize and comply with the following:

SECTION 1. STORM WATER POLLUTION PREVENTION PLANS

A. COVERAGE

Coverage under the Texas Pollutant Discharge Elimination System (TPDES) General Permit TXR150000 for storm water discharges associated with construction activities is required for a project that disturbs 1 acre or greater (or is a part of a larger common plan of development with the potential to disturb 1 acre or greater). Coverage requires the preparation, implementation, inspection, and maintenance of a Storm Water Pollution Prevention Plan (SWPPP), in accordance with the TPDES General Permit.

B. PROJECT CLASSIFICATION

This project is classified as one of three categories listed below. The Contractor shall be responsible for the storm water quality items, accordingly.

1. “Construction Sites That Do Not Require TPDES General Permit Coverage” The project disturbs less than 1 acre (and is not part of a common plan of development with the potential to disturb 1 acre or more); therefore, coverage under the TPDES General Permit is not required. However, the Contractor shall implement good housekeeping measures to minimize the potential for pollutants, associated with the construction activities, to enter the storm sewer system. Item 725, “General Source Controls”, shall be implemented by the Contractor, as well as any other erosion, sedimentation, and pollution controls shown in the plans and project manual.

or

2. “Small Construction Sites” The project disturbs 1 acre or more, but less than 5 acres, (or is part of a common plan of development with the potential to disturb 1 acre or more);

therefore, coverage under the TPDES General Permit is required. The Contractor shall implement, inspect, and maintain the Storm Water Pollution Prevention Plan shown in the plans and project manual.

Certification of a TCEQ Small Construction Site Notice (CSN) in accordance with Part II.E.2 of the TPDES General Permit is required. The Contractor, as a primary operator, as defined by TPDES General Permit, shall certify one Construction Site Notice (CSN) and provide this to Harris County at the time that the contract is awarded. Harris County (owner), as primary operator, as defined by TPDES General Permit, shall certify a second Construction Site Notice (CSN) at the time the contract is awarded. After the project is awarded, Harris County shall provide copies of the two certified Construction Site Notices (CSN) to the Contractor, and send copies to the local storm sewer operator for notification purposes. Prior to commencing construction activities, the Contractor shall laminate and post the notices on the project site in a location where they are readily available for public viewing. The Contractor shall maintain the posted notices until after completion of the construction activities and final stabilization of the project site as defined by the TPDES General Permit. When the project is completed and stabilization is achieved, as defined by the TPDES General Permit, then the Contractor shall note the date that the Small Construction Site Notice was removed from the project site. A copy of the completed Small Construction Site Notice shall be provided to the Engineer with the SWPPP records. The County shall then notify the local storm sewer operator that storm water associated with construction activities is no longer being discharged from the site.

or

3. “Large Construction Sites” The project disturbs 5 acres or greater (or is part of a common plan of development with the potential to disturb 5 acres or more); therefore, coverage under the TPDES General Permit is required. The Contractor shall implement, inspect, and maintain the Storm Water Pollution Prevention Plan shown in the plans and project manual. Certification of a Notice of Intent (NOI) in accordance with Part II.E.3 of the TPDES General Permit is required and shall be completed in accordance with Harris County Specification Item Number 700. The Contractor shall not commence with any earth disturbing activities on the project site until:

• at least seven (7) days after submittal of the NOI (Harris County & Contractors) via U.S. Postal Service, or if Utilizing electronic submittal, prior to commencing construction activities,

• copies of signed NOI’s are submitted to any municipal separate storm sewer system (MS4) receiving discharge, at least seven (7) days prior to commencing construction activities. Contractor shall list in the SWPPP the names and addresses of all MS4 operators receiving a copy.

• copies of the Certified NOI’s are posted in a publicly accessible location (copies shall be laminated or placed in weather resistant display case),

• and copies (Harris County & Primary Contractors) of construction site notice for large sites (CSN) are posted in a publicly accessible location. After construction activities are complete and final stabilization is achieved (as defined by the TPDES General Permit), the Contractor shall certify one Notice of Termination (NOT) form and provide it to Harris County. Harris County shall certify a second NOT form. Harris County shall submit the two NOTs to the TCEQ and the local storm sewer system operator. After the NOTs have been submitted to the TCEQ, then the Contractor shall remove all temporary SWPPP controls, cease SWPPP inspections, and deliver copies of all SWPPP records to the Engineer who shall archive them for a minimum of three years. The final payment to the Contractor may be held until all SWPPP records are received by the Engineer.

SECTION 2. STORM WATER QUALITY MANAGEMENT PLANS

A. COVERAGE

If this project meets the definition of “new development” or “significant redevelopment” as defined in the Harris County regulations or City of Houston ordinance on storm water quality and the project is not “grandfathered” or “exempt” as defined by the regulation or ordinance, then a Storm Water Quality Management Plan (SWQMP) is required for the project, as shown in the construction plans.

B. CLASSIFICATION

This project is classified as one of three categories listed below. The Contractor shall be responsible for the storm water quality items, accordingly.

1. “SWQ Permit Within Unincorporated HarrisCounty” If a Storm Water Quality Management Plan with permanent storm water quality controls is shown in the construction plans and the project is located in unincorporated Harris County, then a Storm Water Quality Management Plan is required prior to the start of construction. Prior to the start of construction, the Engineer shall submit the plans and Written Storm Water Quality Management Plan to the Harris County Permits Group and obtain the necessary signatures acknowledging acceptance of the Storm Water Quality Management Plan. The Contractor shall construct the SWQMP structural controls in accordance with the construction plans, and maintain the SWQMP structural controls until completion of the project and until the Engineer can certify that the SWQMP structural controls are constructed in accordance with the plans.

or

2. “SWQ Permit Within City of Houston” If a Storm Water Quality Management Plan with permanent storm water quality controls is shown in the construction plans and the project is located in the jurisdiction of the City of Houston, then a Storm Water Quality Management Permit is required prior to the start of construction.

Prior to the start of construction, the Engineer shall submit to the City of Houston the construction plans, the City of Houston Storm Water Quality Management Plan Application for Permit, and all other related documents shown on the permit application and obtain the Storm Water Quality Management Permit. Prior to the start of construction, the Contractor shall post a performance bond to the City of Houston for the construction of the storm water quality structural controls. The Contractor shall post a copy of the issued permit on the project site, construct the SWQMP structural controls in accordance with the construction plans, and maintain the SWQMP structural controls until completion of the project and until the Engineer can certify that the SWQMP structural controls are constructed in accordance with the plans.

The Engineer shall submit the Storm Water Quality Permit As-built Certificate to the City of Houston and Harris County shall begin implementation of the SWQMP.

or

3. “Grandfathered or Exempt from SWQ Permit” or “Storm Water Quality Bank” If a Storm Water Quality Management Plan, or permanent storm water quality feature, is not shown in the construction plans, then a Storm Water Quality Management Permit is not required prior to the start of construction because it is grandfathered, exempt, or has provided storm water quality measures through the Storm Water Quality Bank.

SECTION 3. OTHER ENVIRONMENTAL ISSUES

A. BIOLOGICAL ISSUES

In accordance with requirements under the federal Migratory Bird Treaty Act, if in the course of construction, a bird rookery, an identified special migratory bird habitat, or a nesting site is discovered on the project site, then the Contractor shall cease work in the area and immediately notify the Engineer.

In accordance with the Federal Endangered Species Act and the Texas Parks and Wildlife Code, if a biological mitigation plan for specially protected flora and fauna species has been provided within the construction plans, then the Contractor shall comply with all requirements noted within the plan.

B. WATERS OF THE UNITED STATES INCLUDING ADJACENT WETLANDS

In accordance with Section 404 and Section 401 of the Clean Water Act and Section 10 of the Rivers and Harbors Act, waters of the United States including adjacent wetlands shall not be impacted by the Contractor unless a Department of the Army Permit has been obtained from the U.S. Army Corps of Engineers for the project.

If Harris County has obtained a Department of the Army Permit for this project, a copy of the permit is provided in the project manual. The Contractor shall comply with all requirements of the Department of the Army Permit. The Contractor shall not impact any waters of the United States and adjacent wetlands greater than the area and volume shown in the permit. If the Contractor impacts waters of the United States including adjacent wetlands on the project site that exceeds the area and volume shown in the permit, then the Contractor shall be responsible for any violations that may be issued by the regulatory agencies. If the Contractor deems it necessary to impact waters of the United States including adjacent wetlands that exceed the permit, then the Contractor must first notify the Engineer and the Engineer may obtain the necessary regulatory clearances prior to allowing the additional impacts to occur.

During construction of the project, if the Contractor uses off-site areas (not owned by Harris County) for placement of borrow material, disposal of construction debris, staging of construction materials, usage as a field office, or other types of construction related activities, then the Contractor shall be solely responsible for obtaining all environmental permits for the off-site activity, as well as providing all environmental controls and compensatory mitigation requested by the permitting agency. If a regulatory violation occurs as a result of this off-site activity, then the Contractor shall be solely responsible for this violation.

C. STATE OWNED SUBMERGED LANDS

The Contractor shall not impact submerged lands regulated under the authority of the Texas General Land Office, or other local agency, without an easement agreement. If an easement agreement is necessary for the construction activities, then the easement agreement shall be obtained by Harris County.

D. CULTURAL RESOURCES

In accordance with the National Historic Preservation Act and the Antiquities Code of Texas, the Contractor shall not remove or disturb, or cause or permit to be removed or disturbed, any historical, archeological, architectural, or other cultural artifacts, relics, vestiges, remains, or objects of antiquity from the project site. In the event that such items are discovered on the project during construction activities, the Contractor shall immediately notify the Engineer. The site and the potentially significant material shall be protected by the Contractor from further disturbance until a professional examination of them can be made and/or until clearance to proceed with construction has been provided by the Engineer.

E. HAZARDOUS AND PETROLEUM SUBSTANCES

If during the course of construction, the Contractor discovers hazardous or petroleum substances or wastes on the project site, then the Contractor shall immediately cease work in the area and remove all personnel from the area. The contractor shall temporarily close the area to the public, as well; temporary fencing or caution tape shall be installed around the area. The Contractor shall notify the Engineer immediately. Work in the area shall not be permitted until the Engineer has determined that safety and environmental issues have been properly addressed.

NOTICE TO CONTRACTORS

BIDDING TRAFFIC SIGNAL INSTALLATIONS

To ensure completion of the project within the specified time, acquisition and accumulation of needed materials (poles, signal heads, controllers, cabinets and detector amplifiers) should begin upon receipt of purchase order from Harris County.

The Contractor shall commence work immediately upon receipt of materials.

The Contractor shall be required to provide Harris County a copy of their purchase order(s) to supplier(s) for all material(s) ordered along with acknowledgement from the supplier and projected delivery date.

The date of commencement shall be at Harris County’s discretion subject to availability of materials. The Contractor shall be allowed not more than 15 calendar days for initial submittal of shop drawings and not more than 10 calendar days for each submittal during the job that requires shop drawings.

The Contractor shall notify Harris County 48 hours prior to the turn-on of the traffic signal system.

The Final payment to the Contractor will be based upon the final inspection approval that the signal system was installed in accordance with the drawings and specifications, and has successfully undergone the field test to Harris County’s satisfaction (See Item 1000, “Traffic Signal Installation and Modification”).

NOTICE OF SPECIFICATIONS

For the construction of this project, the Contractor shall use the attached Special Provisions, Special Specifications, and Harris County Engineering Department (HCED) Specifications Book – Harris County Standard Specifications for Construction and Maintenance of Roads and Bridges, effective date September 1, 2017. The current HCED specifications may be found at the HCED website: http://www.eng.hctx.net/Portals/33/Publications/professional-services/spec/2017/2017_HC_Stand_Spec.pdf

When applicable, the Contractor shall use the Harris County Flood Control District (HCFCD) 2005 Standard Specifications Book. The current HCFCD specifications may be found at the HCFCD website: https://www.hcfcd.org/Technical-Manuals/all-documents?folderId=8625& view=gridview&pageSize=10

When applicable, the Contractor shall also use the Texas Department of Transportation (TxDOT) 2014 Standard Specifications Book. The current TxDOT specifications may be found at the TxDOT website: https://www.txdot.gov/business/resources/txdot-specifications.html

When applicable, the Contractor shall also use the City of Houston (COH) Standard Specifications. The current COH specifications may be found at the COH website:

https://www.houstonpermittingcenter.org/office-city-engineer/design-and-construction-standards http://www.eng.hctx.net/Portals/33/Publications/professional-https://www.hcfcd.org/media/1311/hcfcd_2005_specifications.pdf http://www.hcfcd.org/Technical-Manuals/all-documents?folderId=8625 http://www.txdot.gov/business/resources/txdot-http://www.houstonpermittingcenter.org/office-city-engineer/design-and-construction-

686-001

1 – 4 08-20 Countywide

SPECIAL PROVISION

TO

ITEM 686

ROAD ILLUMINATION ASSEMBLIES (ON TRAFFIC SIGNAL POLES)

Item 686 “Road Illumination Assemblies (On Traffic Signal Poles)” of the Standard Specifications is amended with respect to the clauses cited below. No other clauses or requirements of this Item are waived or changed.

686.2 MATERIAL REQUIREMENTS. The following Sub-Sections are amended by the following:

A. General Requirements. Is supplemented by the following:

Attach external label to each luminaire’s shipment packaging showing operating voltage and fixture type, for example, “120/240V 150W EQ” or “480V 400W EQ.”

B. Housing. Is supplemented by the following:

If external level indicator cannot be used during installation, provide internal bubble level for leveling fixture during installation.

Sub-Section C. “LED Drivers” is voided and replaced by the following:

C. LED Drivers and Electrical. Provide luminaire with replaceable LED driver that will operate at 120 V, 240 V, or 480 V line voltages as shown in the plans.

Provide drivers with a rated life expectancy of 100,000 hr. when the driver maximum case temperature, measured from the submitted ISTMT, is plotted on the Lifetime vs. Case Temperature graph for the driver.

Provide fixture with an ANSI C136.41 7-pin photocontrol receptacle and shorting cap.

Provide dimmable driver with 0-10V control, prewired to the receptacle as specified in ANSI C136.41. Provide 150W EQ underpass luminaires with two internal 600VAC, 10-amp, Class CC, time-delay fuses and fuse holders. Fuse dimensions are 13/32 in. x 1 1/2 in.

2 – 4 08-20 Countywide

For pre-qualification, provide summary of reliability testing performed for LED driver(s). Provide LED drivers meeting the following specifications:

1. Rated case temperature suitable for operation in the luminaire at ambient temperature of -40 to +40°C;

2. Power factor (PF) of at least 0.90 at full input power at the specified voltage;

3. Rated life expectancy of 100,000 hr. at rated operating temperature inside the luminaire;

4. Reduced output power to LEDs if maximum allowable case temperature is exceeded;

5. Tolerates sustained open circuit and short circuit output conditions without damage; and

6. Potted or rated IP 66 if exposed to the environment.

D. LED Optical Assembly. Is supplemented by the following:

Ensure that optical compartment meets IEC Standard 60529-IP66.

E. Surge Protective Devices. The first paragraph voided and replaced by the following:

Provide luminaire with a surge protective device (SPD), in addition to driver’s internal protection, to withstand repetitive noise transients from utility line switching, nearby lightning strikes, and other interference. Provide SPD that will protect the luminaire from common mode transient peak voltages up to 10 kV (minimum) and transient peak currents up to 10 kA (minimum). Provide SPD tested in accordance with ANSI/IEEE C62.45 per ANSI/IEEE C62.41.2 Scenario I Location Category C-High for Line- Ground, Line- Neutral, and Neutral-Ground. Provide luminaire with SPD listed or recognized by NRTL to UL 1449, 4th edition.

For prequalification, test a complete luminaire conforming to this specification for electrical immunity according to ANSI C136.2- 2015. Test luminaire at the highest operating voltage of the fixture;

for example, test a 377-480V fixture at 480V and a 120-277V fixture at 277V. Submit test reports showing the luminaire passes the ANSI C136.2 ring wave, electrical fast transient, and combination

3 – 4 08-20 Countywide wave at the Extreme level of 20kV and 10kA.

Test luminaires at a test lab accredited by American Association for Laboratory Accreditation (A2LA) for Electrical Fast Transient (EFT) and Surge Immunity. Provide test reports for 120 V, 240 V and 480 V luminaires, showing the fixture can survive the following tests.

F. Warranty. Is supplemented by the following:

The warranty period will begin 90 days after date of manufacture as shown on internal label, or as negotiated by Owner such as in the case of an auditable asset management system.

G. Calculation of Light Loss Factor (LLF). Include in the ISTMT report is voided and replaced by the following:

Include in the ISTMT report:

1. Photos of thermocouple locations and luminaire in testing position;

2. Ambient test temperature;

3. Highest LED temperature;

4. Highest LED driver case temperature

5. Maximum LED current; and

6. Full description of luminaire used in test.

H. Performance Requirements. The first paragraph is supplemented by the following:

All calculations will use photopic lumens; S/P ratios will not be used.

Sub-Section I. “Quality Management System” is added to Article 686.2 by the following:

I. Quality Management System. The manufacture must demonstrate a commitment to quality by submitting either:

1. Current ISO 9001 certification for luminaire manufacturing facilities; or

4 – 4 08-20 Countywide

2. Alternative Quality Management System documentation with the following minimum requirements:

a. Written statement of the company’s quality management (QM) policy

b. Name of employee with special QM training and with QM as his/her primary job responsibility

c. Procedure written specifically for handling orders for fixtures built to Department specifications

d. Written procedure for keeping track of fixtures built, certified, and tested for Department orders

e. Documentation that luminaire has been designed and manufactured in accordance with the manufacturer’s stated quality program

689-001

1 - 2 08-20 Countywide

SPECIAL PROVISION

TO

ITEM 689

TWELVE INCH LED TRAFFIC SIGNAL LAMP UNIT

Item 689 “Twelve Inch Traffic Signal Lamp Unit” of the Standard Specifications is amended with respect to the clauses cited below. No other clauses or requirements of this Item are waived or changed.

689.5 PRE-QUALIFICATION PROCEDURE. Sub-Section B “Pre-Qualification Samples,” Bullet 10 is voided and replaced by the following:

10. Manufacturer’s written warranty against defects in materials, design and workmanship for LED traffic signal lamp units for a period of 180 months after installation

689.6 MATERIAL REQUIREMENTS. Sub-Section C “Optical and Light Output Requirements” third and fourth paragraphs are voided and replaced by the following:

Each LED traffic signal lamp unit must meet minimum laboratory light intensity values and light output distribution as described in I.T.E. Vehicle Traffic Control Signal Heads (VTCSH ) - LED Supplements for a minimum period of 180 months, based on normal use in traffic signal operation over an operating temperature range of −40°F (−40°C) to 165°F (74°C).

Measured chromaticity coordinates of LED traffic signal lamp units must conform to the chromaticity requirements detailed in the I.T.E. VTCSH LED Circular Signal Supplement, Section 4.2: Chromaticity, or in the I.T.E.

VTCSH LED Vehicle Arrow Traffic Signal Supplement, Section 4.2:

Chromaticity, for circular or arrow indications respectfully for a minimum period of 180 months.

689.8 WARRANTY REQUIREMENTS. The third and fourth paragraphs are voided and replaced by the following:

The LED traffic signal lamp units must be warranted against any failure due to design, workmanship, material defects, and loss of intensity for 180 months of field operation. Units must meet or exceed minimum requirements of this Item for a minimum of 180 months of field operation.

Repair or full replacement will be required if a LED traffic signal lamp unit

689-001

2 - 2 08-20 Countywide fails to operate as specified under normal operating conditions. Provide repaired or replaced units at no cost to the Engineer. Repaired units will inherit the remainder of the failed unit’s warranty. Replaced units will be warranted for 180 months of field operation.

694-001

1 – 1 09-20 Countywide

SPECIAL PROVISION

TO

ITEM 694

LED SIGN LIGHTS FOR TRAFFIC SIGNALS

Item 694 “LED Sign Lights for Traffic Signals” of the Standard Specifications is amended with respect to the clauses cited below. No other clauses or requirements of this Item are waived or changed.

694.1 DESCRIPTION. Is voided and replaced by the following:

This specification covers the minimum requirements for a traffic sign and LED sign light and mounting brackets to be used with horizontal and vertical traffic signals.

The signs and sign lights shall be as herein specified.

694.6 ELECTRICAL REQUIREMENTS FOR A TRAFFIC SIGNAL LED SIGN

LAMP. Is supplemented by the following:

Warranty Requirements. LED sign light shall meet or exceed a minimum warranty requirement of 10 years of field operation.

699-001

1 - 16 08-20 Countywide

SPECIAL PROVISION

TO

ITEM 699

LED PEDESTRIAN TRAFFIC SIGNAL LAMP UNIT

Item 699 “LED Pedestrian Traffic Signal Lamp Unit” of the Standard Specifications is amended with respect to the clauses cited below. No other clauses or requirements of this Item are waived or changed.

699.1 DESCRIPTION. The description paragraph is voided and replaced by the following:

This Item shall govern the minimum acceptable design and performance requirements for the light emitting diode (LED) pedestrian signal modules (or Lamp Unit) that include “walking person” and “upraised hand” icons and numeric countdown (hereafter called module or modules).

699.5 PRE-QUALIFICATION PROCEDURE. The following Sub-Sections are amended by the following:

A. Pre-Qualification Request. Is voided and replaced by the following:

Prospective producers interested in submitting their product for evaluation must submit a written request to:

Harris County Engineering Department 10555 Northwest Freeway, Suite 140, Houston, TX 77092 Attn: Traffic Signal Maintenance

B. Pre-Qualification Samples. Is voided and replaced by the following:

Ship three samples from a normal production run of the module requesting acceptance to:

Harris County Engineering Department 10555 Northwest Freeway, Suite 140, Houston, TX 77092 Attn: Traffic Signal Maintenance

Provide additional samples when directed by the Department.

All products submitted for pre-qualification tests must be at no cost

2 - 16 08-20 Countywide to the Department.

Provide the following with pre-qualification samples:

1. Manufacturer name and contact information

2. Brand and model number of the module

3. LED Manufacturer’s recommended drive current and degradation curves

4. One schematic diagram for each module model being evaluated, along with any necessary installation instructions

5. Copy of the manufacturer’s International Organization for Standardization ISO 9000 certification, or Latest Revision, (including date)

6. Copy of the manufacturer’s quality assurance (QA) testing procedures

7. Letter from the manufacturer confirming compliance to this Item

8. Testing procedures explaining compliance to this Item, in addition to the I.T.E. tests

9. Letter confirming participation in a third party traffic signal certification program conducted by an independent Nationally Recognized Testing Laboratory (NRTL); including reports confirming each module model’s compliance with this Item, including Section 699.7 as well as the latest pertinent I.T.E.

standards.

10. Completed checklist detailing the page and paragraph in the laboratory report where I.T.E. and Department compliance has been tested

11. Manufacturer’s written warranty against defects in materials, design and workmanship for the module for a period of 180 months after installation

C. Sampling and Testing. Is voided and replaced by the following:

The Department will connect all samples submitted to the Department’s ITS Traffic Signal Control Cabinet and will test to I.T.E.

3 - 16 08-20 Countywide

Pedestrian Traffic Control Signal Indicators (PTCSI): Light Emitting Diode (LED) Signal Modules environmental standards. All LED units must be operational at the conclusion of the test and must not cause Conflict Monitor (MMU/CMU) trip conditions in the controller/cabinet during testing.

During the environmental testing, the Department may evaluate the samples for chromaticity and intensity after 8 hours of soaking at −40°F (−40°C) and 165°F (74°C), at low (80 VAC) and high (135 VAC) voltages.

The Department will conduct destructive testing to determine that the module is in conformance with the catastrophic LED failure clause.

D. Evaluation. Is voided and replaced by the following:

The Department will return to the submitting party a letter of confirmation or rejection for each model submitted. For each rejected model, TSM will issue a test report along with the letter of rejection.

1. Qualification. If approved for use by the Department, the product will be included in the MPL.

Any deviation in product design after testing and approval from the Department, constitutes a new model which must be resubmitted for acceptance.

If a manufacturer determines there is reason to remove a model from the MPL, they must submit a letter to the Department identifying the problem in writing. The Department will remove the model without prejudice. Once the problem has been resolved to the Department’s satisfaction, the manufacturer may apply for re-qualification for the new model.

All submitted materials become the property of the Department.

2. Failure. Products not qualified under this Item may not be furnished on Department projects and must be corrected of all deficiencies before reconsideration for qualification.

If products fail to meet any of the specification requirements, the producer may not resubmit for pre-qualification until one year from original evaluation date. The Department may

4 - 16 08-20 Countywide waive this time limit if provided with documentation from an independent testing facility stating the product meets all requirements. The Department will enforce the one year time limit if, after retesting, the product again fails any of the specification requirements.

Costs of sampling and testing are normally borne by the Department; however, the costs of sampling and testing products failing to conform to the requirements of this Item are borne by the Contractor or Supplier. This cost will be assessed at the rate established by the Director of the Department and in effect at the time of testing for each recurring non-compliant submittal.

Amounts due to the Department will be deducted from monthly or final estimates on contracts or from partial or final payments on direct purchases by the Department.

E. Disqualification. Is voided and replaced by the following:

The following conditions are cause for immediate removal from the

MPL:

1. A problem is found to exist with a module (e.g. unsafe failure condition or excessive failure rate)

2. Excessive complaints about a manufacturer’s compliance Section 699.8 “Warranty Requirements”

3. Manufacturer deviates the module from pre-qualified units without prior testing and approval from the Department

If the Department removes a model from the MPL for cause other than manufacturer’s recommendation, the manufacturer may not resubmit for approval for a minimum of one year.

The Department may reinstate a model on the MPL under a different model number, if all problems identified have been corrected, and the new model no longer exhibits the same. The Department must approve of the new model as a successful replacement.

F. Periodic Evaluation. Is voided and replaced by the following:

The Department may perform random sample testing on shipments, to be completed within 30 days after delivery.

5 - 16 08-20 Countywide

The Department will perform optical testing with the module mounted in a standard traffic signal section, but without a visor or hood attached to the section or housing. The quantity of each model in the shipment will determine the number of modules tested. The sample size will conform to ANSI/ASQC Z1.4. The Department will determine the sampling parameters used for the random sample testing. All parameters of the specification may be tested on the modules.

Acceptance or rejection of the shipment will conform to ANSI/ASQC Z1.4 for randomly sampled shipments.

Sub-Section G. “Re-Qualification” is added to Article 699.5.

G. Re-Qualification. The module may not be re-qualified under the same model number. The module must be submitted under a different model number and undergo the entire qualification process as required by this item.

Article 699.6 is voided and replaced by the following Article:

699.6 QUALITY ASSURANCE (QA).

A. Quality Assurance Program (QAP). A quality assurance (QA) program must be in place at the manufacturer’s facility to ensure product reliability. Modules must be manufactured in accordance with a vendor QAP. The QAP will include two types of quality assurance:

1. Design Quality Assurance. As stated in ITE PTCSI, Section 6.4.1, design qualification testing must be performed on new module designs, when a major design change has been implemented on an existing design, or after every 5 years that a design is in service. Modules used in design qualification testing must be representative of the manufacturer’s proposed normal production. A third-party lab with NRTL status must perform all parts of the design qualification testing, as stated in ITE PTCSI, Section 6.4.

The failed state impedance test is mandatory, must be performed in accordance with ITE PTCSI, Section 6.4.8, and must be documented in the test report from the NRTL.

2. Production Quality Assurance. Production quality assurance must include statistically controlled routine tests to ensure minimum performance levels of modules built to meet this item. All modules tendered for sale must undergo production testing and inspection in accordance with ITE

6 - 16 08-20 Countywide

PTCSI, Section 6.3, prior to shipment. Failure of a module to meet the requirements of production testing and inspection will be cause for rejection. Test results must be maintained in accordance with ITE PTCSI, Section 6.1.2. A NRTL must review the factory’s QA process.

B. Conformance. Module designs not satisfying design qualification testing and the production quality assurance testing performance requirements will not be labeled, advertised, or sold as conforming to ITE PTCSI. Intertek ETL or a third-party lab with NRTL status must certify all lamps in a LED Countdown Pedestrian Signal Module Certification Program.

Label modules meeting this item in accordance with Section 699.9.B.6.

C. Burn-In. Each new module must be energized at the manufacturer’s facility for a minimum of 24 hours at nominal operating voltage (120 VAC RMS) at room temperature in order to ensure electronic component reliability prior to shipment.

699.7 DOCUMENTATION REQUIREMENTS. is voided and replaced by the following:

Provide all modules with, as a minimum, the following documentation:

A. Complete and accurate installation wiring guide

B. Contact name, address, telephone number and email address or webpage for the representative, manufacturer, or distributor for warranty repair

C. If requested by the purchaser, the bidders must supply schematics for all electronics

D. LED Manufacturer’s recommended drive current and degradation curves

E. Compliance letter specified in Section 699.8

F. Certification document specified in Section 699.8

G. List containing all LED signal module serial numbers anticipated for use

H. Bidders must submit a copy of a test report, certified by an

7 - 16 08-20 Countywide independent (NRTL) laboratory, stating that the LED countdown pedestrian signal model submitted meets or exceeds the latest I.T.E.

PTCSI: Light Emitting Diode (LED) Signal Modules standard. The NRTL report must include documentation of tests and verification of compliance to the additional provisions of this standard. Tests performed by the independent lab must follow all the instructions documented in the latest I.T.E. PTCSI: Light Emitting Diode (LED) Signal Modules as it pertains to the product being tested. The I.T.E.

criteria in Section 6 Quality Assurance must be documented in the submitted test report. The test report must document the criteria of Section 699.9.C.

Manufacturers must be certified to International Organization for Standardization ISO 9000, or Latest Revision, (including date)

699.8 WARRANTY REQUIREMENTS. Is voided and replaced by the following:

Manufacturer must comply with all requirements of the following warranty.

Failure to comply with the requirements of this warranty is cause for the manufacturer/supplier to be removed from the MPL.

The manufacturer/provider must submit a letter of compliance indicating understanding and willingness to abide by the provisions of this Item. The manufacturer/provider must provide name and telephone number of the person to contact regarding potential claims under the provisions of this warranty. Address the compliance letter to:

Harris County Engineering Department 10555 Northwest Freeway, Suite 140, Houston, TX 77092 Attn: Traffic Signal Maintenance

The module must be warranted against any failure due to design, workmanship, material defects, and loss of intensity for 180 months of field operation. Units must meet or exceed minimum requirements of this Item for a minimum of 180 months of field operation.

Repair or full replacement will be required if a module fails to operate as specified under normal operating conditions. Provide repaired or replaced units at no cost to the Department. Repaired units will inherit the remainder of the failed unit’s warranty. Replaced units will be warranted for 180 months of field operation.

Should a module fails with no visible damage to electronic/electrical components, (not including fuses or components designed to act as a fuse) or wiring, the module is considered to have failed under normal operating conditions. A blown fuse or a component acting as a fuse, without any other

8 - 16 08-20 Countywide permanent failure to electrical, electronic components will be considered to have failed under normal operating conditions. Natural phenomena (e.g.

lightning) are not acceptable as excusable unit failures without visible damage.

Repair or replace module within 15 business days after receipt of failed module at no cost to the Department. All shipping costs will be borne by the vendor or manufacturer.

The manufacturer/provider must submit a certification document with each lot or shipment stating that the module provided meet all the requirements of this Item.