19-General Notices, Notes and Information.pdf

Preparer’s Certification for

Specifications, Special Specifications, Special Provisions, Estimate and Specification Data

Special Note:

The following items developed per the published Construction Drawings have been verified and included in the Purchasing Department’s Bid Specification Package which can be found on Bonfire.

The items include:

Pricing/Delivery Information Scope of Work Special Provision to Standard Specifications Special Specifications Supplement to General Requirements Contract Time

FOR:

Destination Trail Segment 1B - Brays Bayou at Scott Street, UPIN 23050MF2QJ01, Precinct 1

11/20/2025 https://harriscountytx.bonfirehub.com/portal/?tab=openOpportunities https://harriscountytx.bonfirehub.com/portal/?tab=openOpportunities

Harris County Precinct 1 – Des�na�on Segment 1B

UPIN 23050MF2QJ01

Scope of Work

Project consists of a 10-9 wide concrete walking hike & bike trail, approximately 0.21 miles long, along

Brays Bayou at Sco@ Street. The concrete walking trail will cross under the exis�ng bridge and connect at both ends at the high bank.

Project consists of Pedestrian Hybrid Beacon (PHB) installation for the walking hike & bike trail, along Scott street at Brays Bayou. Installation of PHB will consist of the following but not limited to signal poles, meter poles, controller cabinets, pavement markings, traffic signal structures, median, curbs and ramps.

Contract Time

The contract time is 120 calendar days.

May 2019

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.

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.

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 Harris County”

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.

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.

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 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 – 2023 Harris County Standard Specifications for the Construction of Roads and Bridges, effective date October 10, 2023. The current HCED specifications may be found at the HCED website: https://www.eng.hctx.net/Consultants/Standards- Specifications/Standard-Engineering-Design-Specifications

When applicable, the Contractor shall use the Harris County Flood Control District (HCFCD) 2020 Standard Specifications Book. The current HCFCD specifications may be found at the HCFCD website: https://www.hcfcd.org/Resources/Technical-Manuals/Standard- Specifications-Related-Drawings?folderId=15985&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 https://www.eng.hctx.net/Consultants/Standards-Specifications/Standard-Engineering-Design-Specifications https://www.eng.hctx.net/Consultants/Standards-Specifications/Standard-Engineering-Design-Specifications https://www.hcfcd.org/Resources/Technical-Manuals/Standard-Specifications-Related-Drawings?folderId=15985&view=gridview&pageSize=10 https://www.hcfcd.org/Resources/Technical-Manuals/Standard-Specifications-Related-Drawings?folderId=15985&view=gridview&pageSize=10 https://www.txdot.gov/business/resources/txdot-specifications.html https://www.txdot.gov/business/resources/txdot-specifications.html https://www.houstonpermittingcenter.org/office-city-engineer/design-and-construction-standards https://www.houstonpermittingcenter.org/office-city-engineer/design-and-construction-standards

SPECIAL SPECIFICATION 0001

PROSECUTION AND PROGRESS

Material Ordering Stage After issuing the purchase order for the awarded contract, the contractor shall submit an order list per the bid items for the long lead traffic signal related items including signal poles, mast arms and traffic control box within five (5) working days. After approved by the Engineer, the contractor shall place the order for all designated material and provide the anticipated schedule for the material on hand.

During the ordering stage, the invoice to the items beyond the approved order list shall be pre-approved by the Engineer. The contractor may perform necessary field work identified by the Engineer.

Based on the anticipated date for the material on hand, the Engineer will determine the pre-construction meeting to begin the construction stage.

Construction Stage After the pre-construction meeting, the notice to proceed date will be established and the contract duration time defined in the bid documents will be effective.

SPECIAL SPECIFICATION

ITEM 0002

CASH ALLOWANCE FOR STREET LIGHT FIXTURE REMOVAL

Description “Cash Allowance” is to pay the cost to CenterPoint Energy to remove the existing streetlight fixtures (2) as shown in the plans.

Measurement and Payment The amount in the bid documents is the fixed unit price (Each).

The Contractor agrees to make full payment to CenterPoint Energy in the amount of $768.00 upon payment from Harris County. No extra charge by the Contractor will be allowed under this item.

Any administration cost associated with the payment will be incidental to all other bid items.

CITY OF HOUSTON TRAFFIC POLE

2023 STANDARD SPECIFICATION ASSEMBLIES – STEEL

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SECTION 02582

TRAFFIC POLE ASSEMBLIES - STEEL

PART 1 GENERAL

1.01 SECTION INCLUDES

A. Steel traffic pole assemblies, including anchor bolts and foundation.

1.02 RELATED SECTIONS

A. Section 01270 – Measurement and Payment

B. Section 01330 – Submittal Procedures

C. Section 01554 – Traffic Control and Street Signs

D. Section 02465 – Drilled Shaft Foundations

E. Section 02893 – Traffic Signal Construction

1.03 MEASUREMENT AND PAYMENT

A. Unit Prices.

1. Payment for Traffic Pole Assemblies will be measured by each Traffic Pole Assembly including foundation.

2. The price shall be full compensation for Work performed and materials furnished in accordance with this price item. Foundation is incidental to the cost of the Work. Document 00410 - Bid Form short description includes the type and size of the steel Traffic Pole Assembly. Payment for traffic signal heads, pedestrian signal heads, pedestrian push button stations, and other transportation related devices are paid for separately.

3. Refer to Section 01270 – Measurement and Payment for unit price procedures.

1.04 REFERENCES

A. AASHTO LTS: Standard Specifications for Structural Supports for Highway Signs, Luminaires and Traffic Signals including interim revisions.

B. AISC: American Institute of Steel Construction

C. AISI: American Iron and Steel Institute

D. ASTM A36: Standard Specification for Carbon Structural Steel

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E. ASTM A123: Standard Specification for Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products

F. ASTM A153: Standard Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware

G. ASTM A501: Standard Specification for Hot-Formed Welded and Seamless Carbon Steel Structural Tubing

H. ASTM A563: Standard Specification for Carbon and Alloy Steel Nuts (Inch and Metric)

I. ASTM A572: Standard Specification for High-Strength Low-Alloy Columbium- Vanadium Structural Steel

J. ASTM A595: Standard Specification for Steel Tubes, Low-Carbon or High-Strength Low-Alloy, Tapered for Structural Use

K. ASTM A1011 - Standard Specification for Steel, Sheet and Strip, Hot-Rolled, Carbon, Structural, High-Strength Low-Alloy, High-Strength Low-Alloy with Improved Formability, and Ultra-High Strength

L. ASTM F1554: Standard Specification for Anchor Bolts, Steel, 36, 55, and 105-ksi Yield Strength

M. ASTM F3125 - Standard Specification for High Strength Structural Bolts and Assemblies, Steel and Alloy Steel, Heat Treated, Inch Dimensions 120 ksi and 150 ksi Minimum Tensile Strength, and Metric Dimensions 830 MPa and 1040 MPa Minimum Tensile Strength

N. AWS D1.1 – Structural Welding Code – Steel

1.05 SUBMITTALS

A. The Contractor shall furnish mill test report(s) on steel used in pole fabrication. The mill test report(s) shall be furnished prior to or at the time of pole delivery.

B. Four (4) copies (minimum) of shop drawings shall be furnished for City of Houston review and approval prior to pole fabrication unless otherwise requested by the City but no more than six (6) copies.

C. Two (2) copies of shop drawings will be returned by the City of Houston to the manufacturer for its files.

D. Conform to requirements of Section 01330 - Submittal Procedures.

1.06 DEFINITIONS

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A. Traffic Pole Assembly - a steel pole that supports luminaires, traffic signals, pedestrian push button stations, and other transportation related devices. The pole assembly may support a combination of these items.

1. Traffic Pole Assemblies include, but are not limited to:

a. Traffic signal poles;

b. Mast arms;

c. Luminaire arms;

d. Street light poles;

e. Pedestrian push button station support poles;

f. Pedestal poles; and

g. The equivalents.

2. This excludes poles use for purposes that fall outside of the scope of AASHTO’s Specifications for Structural Supports for Highway Signs, Luminaires and Traffic Signals.

3. This excludes roadside sign structures. Refer to 01554 - Traffic Control and Street Signs for specifications.

PART 2 PRODUCTS

2.01 MATERIALS

A. All items shall be new materials of the latest product in production to the commercial trade and shall be of the highest quality as to materials used and workmanship. The manufacturer of these items shall be experienced in design and construction of such items and shall furnish evidence of having supplied similar items, which have been in successful operation, for not less than three (3) years.

2.02 SILENCE OF SPECIFICATION

A. The apparent silence of these specifications as to any detail, or the apparent omission from it of a detailed description concerning any point, shall be regarded as meaning that only the best commercial practice shall prevail and that only material and workmanship of the finest quality shall be used. All interpretations of these specifications shall be made on the basis of this statement.

2.03 TRAFFIC POLE ASSEMBLIES

A. The Traffic Pole Assemblies shall be designed in accordance with the latest edition of the AASHTO standard specifications.

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B. Anchorage: Included with each pole shall be a minimum of four steel anchor bolts, complete with double hex nuts, lock washers and flat washers. Nuts, washers and entire length of the anchor bolts shall be hot-dip galvanized to ASTM - A153. Anchor bolts shall meet the requirements of ASTM F1554, Gr. 55. An anchor bolt template shall be included with each pole assembly.

C. Wind Resistance: Entire pole and arm assembly to be rated to withstand AASHTO requirements for 90 mile per hour wind.

D. Welds: All welds shall meet the requirements of AWS D1.1

E. Material Certification: Material certifications shall be provided for all ASTM numbers referred to in this specification.

F. Complete design drawings and complete technical data must be submitted for approval to the City of Houston prior to starting fabrication. Shop drawings shall be signed and sealed by a Registered Professional Engineer.

G. The pole unit and all materials used in its manufacture shall meet the requirements of the American Association of State Highway and Transportation Officials (AASHTO), specifically LTS: Standard Specifications for Structural Supports for Highway Signs, Luminaries and Traffic Signals including interim revisions.

H. Pole shaft and arms shall be circular or octagonal in cross-section with no transverse joints or welds and no more than one (1) longitudinal welds per pole or arm. Refer to the standard drawings for exact sizes on the pole diameters. They shall be uniform in cross-section and shall uniformly taper from the pole shaft to the end of the arm. The end of the arm shall be at a height above the pavement, as detailed on the standard drawing, with design vertical loadings, when installed on the pole.

2.04 POLE SHAFT

A. The pole shaft for the Type 1 poles shall be fabricated from a minimum of 3-gauge (0.2391 inch) hot rolled commercial steel. The shaft shall have only one (1) longitudinal, automatically, electrically welded joint, and shall have no intermediate horizontal joints nor welds. After forming and welding, the tapered shaft shall be longitudinally cold rolled over a hardened steel mandrel under sufficient hydraulic pressure to flatten the weld and increase the physical characteristics of the shaft. The shaft shall meet the chemical and physical properties of ASTM-A595 GR. A, having a minimum yield strength of 55,000 psi. Only one length of steel sheet shall be used, which shall be formed into a continuously tapered shaft, having a taper of approximately 0.14 inch per foot.

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B. The pole shaft for the Type 2 poles shall be fabricated from a minimum 0.375 inch hot rolled commercial steel. The shaft shall have only one (1) longitudinal, automatically, electrically welded joint, and shall have no intermediate horizontal joints nor welds. The shaft shall meet the chemical and physical properties of ASTM- A572 GR. 55, having a minimum yield strength of 55,000 psi. Only one (1) length of steel sheet shall be used, which shall be formed into a continuously tapered shaft, having a taper of approximately 0.14 inch per foot.

C. The base plate shall conform to ASTM-A36 or ASTM A572 steel. It shall telescope the shaft and be attached by means of two continuous welds, one on the inside of the base at the end of the shaft, the other on the outside at the top of base. The base plate shall be arranged to accept four (4) 2-1/4 inch diameter anchor bolts on an 18 inch bolt circle.

D. The pole shaft shall be furnished with a reinforced handhole frame with steel cover and a 1/2 inch - 13 UNC grounding provision. Dimensions shall be as shown on the detail drawings.

E. Each pole shaft shall include a steel pole plate welded to shaft for the mast arm connection. It shall be arranged to accept four (4) connecting bolts. Pole plate material shall conform to the requirements of ASTM-A36 or ASTM A572 Grade 50 steel.

F. As required, each pole shall be provided with an ornamental pole top. The final shaped pole top shall be mechanically attached to the top of the shaft to provide access for wiring signals secured by a J-hook wire support; also provided. Pole top material shall conform to the requirements of AA-319.0-F aluminum.

G. The pole shaft shall be drilled in the field at required signal locations.

2.05 MAST ARM

A. The mast arm shall be fabricated from a minimum 7-gauge (0.179 inch) hot rolled commercial steel in accordance with ASTM A595 Grade A and shall have a yield of not less than 55,000 psi. It shall be fabricated and formed into a round shape as required, using the same cold rolling process as the pole shaft and shall have the same physical properties and yield strength. Arm dimensions shall be equivalent in strength for the loads shown in the plans.

B. Mast arm shall be a straight flange plate mounted style and shall include a steel arm plate with four (4) connecting bolts. Arm plate material shall conform to the requirements of ASTM-A36 or ASTM A572 Grade 42 steel. Bolts shall be internally mounted to pole plate and meet the requirements of ASTM-F3125.

C. A slip joint shall be permissible for arms forty (40) feet and greater in length. The slip joint shall be made in the shop but may be match marked and shipped disassembled.

An automatic submerged arc process shall weld pole shaft and arm. Pole and arm diameters shall be uniform at any cross-section and shall be reasonably straight.

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D. Tenons for mounting the vehicle signal head assemblies shall be provided on the mast arm at locations required. Refer to the standard drawings for tenon details.

2.06 LUMINAIRE ARM

A. The luminaire arm shall be fabricated from 2-inch Schedule 80 pipe.

B. The length of the luminaire arm shall be as shown in the standard drawings or required in the plans.

C. The luminaire arm shall be connected to the pole shaft with simplex fittings, and in accordance with details shown on the standard drawings.

2.07 HOT-DIP GALVANIZING

A. Surface Preparation.

1. Prior to being incorporated into an assembled product, steel plates 3/4 inch or more in thickness may require blast cleaning to remove rolled-in mill scale, impurities, and non-metallic foreign materials. After assembly, all weld flux shall be mechanically removed.

2. The iron or steel product is degreased by immersion in an agitated 4.5%-6% concentrated caustic solution elevated to a temperature ranging from 150 to 190- degrees Fahrenheit. It is then pickled by immersion in a heated sulfuric acid solution of 6%-13% concentration, controlling the temperature between 150 and 190-degrees Fahrenheit. It is next rinsed clean from any residual effects of the caustic or acid solutions by immersion in a circulating fresh water bath.

3. Final preparation is done by immersion in a concentrated zinc ammonium chloride flux solution heated to 130-degrees Fahrenheit. The solution's acidity content is maintained between 4.5-5.0 pH. The assembly is air dried to remove any moisture remaining in the flux coat and/or trapped within the product.

B. Pole shaft and arm shall be hot-dip galvanized after fabrication in conformance with ASTM A123 requirements, with a minimum of two (2) ounces per square foot of galvanized coating.

C. All ancillary parts for pole structures shall be hot-dip galvanized after fabrication in conformance with ASTM A153 requirements. The galvanized coating shall be a minimum thickness of two (2) ounces per square foot. All threaded material shall be brushed or retapped after galvanizing. Fabricated products shall be free and clear of teardrop edges, flaking zinc, rough appearance, holes covered with zinc membrane, and similar unattractive finishes. In general, the complete product shall be smooth, clean and unscarred when delivered. Any part of the structures not meeting these requirements shall be rejected.

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2.08 POWDER COATING OVER GALVANIZING

A. Surface Preparation. The pole shaft, arm and ancillary parts shall be prepared in accordance with the hot-dip galvanizing requirements of Part 2.07 in this section.

B. Top Coat. All galvanized exterior surfaces visually exposed are to be coated with a Urethane or Triglycidyl Isocyanurate (TGIC) Polyester Powder to a minimum film thickness of 2.0 mils. The galvanized exterior should be etched, preheated, then powder coated. The coating shall be electrostatically applied and cured in a gas-fired convection oven by heating the steel substrate to a minimum of 350-degrees Fahrenheit and a maximum of 400-degrees Fahrenheit.

C. Packaging. In order to protect the finish during transportation, a wrapping of 3/16" U.V. inhibited plastic-backed packing foam must be applied prior to shipment of small poles. Larger poles are cradled in a 1-inch rubberized foam base. A nylon ripcord shall be placed beneath the wrapping the entire length of the pole for removal of the wrapping without the use of knives or any other sharp instrument that may damage the painted surface.

2.09 FOUNDATION

A. Construct foundation in accordance with Section 02465 – Drilled Shaft Foundations, 02893 – Traffic Signal Construction, and as shown on Drawings.

PART 3 EXECUTION – NOT USED

END OF SECTION

CITY OF HOUSTON

2023 STANDARD SPECIFICATION STREETLIGHT LUMINAIRES

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SECTION 02590

STREETLIGHT LUMINAIRES

A. Traffic Signal Pole Luminaire

B. Major Thoroughfare Luminaire

C. Collector Street Luminaire

D. Local Street Luminaire

1.02 RELATED SECTIONS

A. Section 01270 – Measurement and Payment

B. Section 01330 – Submittal Procedures

1.03 MEASUREMENT AND PAYMENT

A. Unit Prices.

1. Payment for luminaires will be measured by each luminaire type.

2. Payment for the work performed and materials furnished in accordance with this specification will be paid for at the unit price bid for "Traffic Signal Pole Luminaire", "Major thoroughfare Luminaire", "Collector Street Luminaire", or "Local Street Luminaire".

3. Refer to Section 01270 – Measurement and Payment for unit price procedures.

1.04 REFERENCES

A. The approved luminaires shall meet the standards referenced below:

1. Publications are referenced within the text by their basic designation only.

Versions listed shall be superseded by updated versions as they become available.

a. ANSI C78.377-2017, R2022 (or latest), American National Standard for Electrical Lamps – Specifications for the Chromaticity of Solid State Lighting (SSL) Products

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b. ANSI C82.77-2021 (or latest), American National Standard for Lighting Equipment - Harmonic Emission Limits - Related Power Quality Requirements

c. ANSI C136.2-2018(or latest), American National Standard for Roadway and Area Lighting Equipment - Dielectric Withstand and Electrical Transient Immunity Requirements

d. ANSI C136.10-2017 (or latest), American National Standard for Roadway and Area Lighting Equipment - Locking-Type Photocontrol Devices and Mating Receptacles- Physical and Electrical Interchangeability and Testing

e. ANSI C136.15-2020 (or latest), American National Standard for Roadway and Area Lighting Equipment - Luminaire Field Identification

f. ANSI C136.22-2019 (or latest), American National Standard for Roadway and Area Lighting Equipment - Internal Labeling of Luminaires

g. ANSI C136.25-2019 (or latest), American National Standard for Roadway and Area Lighting Equipment - Ingress Protection (Resistance to Dust, Solid Objects and Moisture) for Luminaire Enclosures

h. ANSI C136.31-2018 (or latest), American National Standard for Roadway and Area Lighting Equipment - Luminaire Vibration

i. ANSI C136.37-2019 (or latest), American National Standard for Solid State Light Sources Used in Roadway and Area Lighting

j. ANSI C136.41-2021 (or latest), American National Standard for Roadway and Area Lighting Equipment-Dimming Control Between an External Locking Type Photocontrol and Ballast or Driver

k. ANSI/IEEE C62.45: IEEE Recommended Practice on Surge Testing for Equipment Connected to Low-Voltage (1000 V and less) AC Power Circuits

l. ANSI/IEEE C62.41.2: IEEE Recommended Practice on Characterization of Surges in Low-Voltage (1000 V and less) AC Power Circuits

m. ANSI/IES LM-80-21: Measuring Maintenance of Light Output Characteristics of Solid-State Light Sources

n. ANSI/IES TM-21-21: Projecting Long-Term Luminous, Photon, and Radiant Flux Maintenance of LED Light Sources

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o. ASTM B117: Standard Practice for Operating salt Spray (Fog) Apparatus

p. ASTM D523: Standard Test Method for Specular Gloss

q. ASTM D1654: Standard Test Method for Evaluation of Painted or Coated Specimens Subjected to Corrosive Environments

r. ASTM G154: Standard Practice for Operating Fluorescent Ultraviolet (UV) Lamp Apparatus for Exposure of Materials

s. ISO 17025-2017: General requirements for the competence of testing and calibration laboratories

t. U.S. Department of Energy & Municipal Solid-State Street Lighting Consortium model specification for LED roadway luminaires electrical immunity requirements for High Test Level 10kV/10kA

1.05 SUBMITTALS

A. The Contractor shall furnish six (6) copies of luminaire submittal package to the CITY OF HOUSTON. Submittal package shall include luminaire cut sheet, LED light source cut sheet, LED driver cut sheet, surge protective device cut sheet, LM-79 luminaire photometric report with photometric file in LM-63 format, LM-80 data, ISTMT report, energy star TM-21 calculator, 3G vibration test, UL1598 certification and warranty.

B. Conform to requirements of Section 01330 - Submittal Procedures.

1.06 WARRANTY

A. Luminaire shall come with a 10-year warranty on product and finish.

A. All items shall be new materials of the latest product in production to the commercial trade, and shall be of the highest quality as to materials used and workmanship. The manufacturer of these items shall be experienced in design and construction of such items and shall furnish evidence of having supplied similar items, which have been in successful operation, for not less than ten (10) years.

2.02 SILENCE OF SPECIFICATIONS

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A. The apparent silence of these specifications as to any detail, or the apparent omission from it of a detailed description concerning any point, shall be regarded as meaning that only the best commercial practice shall prevail and that only material and workmanship of the finest quality shall be used. All interpretations of these specifications shall be made on the basis of this statement.

2.03 LUMINAIRE HOUSING

A. Luminaire shall have cobra head style/shape/aesthetic. An internal bubble level shall be provided with mounting provisions that permit ±5° leveling in 2.5° increments.

Color shall be gray.

B. Luminaire finish shall exceed a rating of 6 per ASTM D1654 after 1000 hours & 1500 hours, and shall meet or exceed a rating of 6 after 3000 hours, testing per ASTM B117, surpasses ANSI C136.37. The coating shall exhibit no greater than 30% reduction of gloss per ASTM D523, after 500 hours of QUV testing at ASTM G154 Cycle 6.

C. Vibration shall meet ANSI C136.31, Level 2 (bridge/overpass, 3G)

D. QR Code Label: Luminaire shall be equipped with a unique QR label that is visible on the outside of the luminaire. The QR label shall be supported by a dedicated smartphone app. App shall be able to access detailed product specific information as well as mounting instructions. The QR code label app shall enable product registration on site, after installation, and record GPS location of installed fixture, installed location photo and provision for additional information. Additionally, app shall provide diagnostic support and enable identification of the specific spare parts available for repairs.

2.04 ELECTRICAL, ELECTRONIC DRIVERS AND LED MODULES

A. Luminaire shall have Luminaire Useful Life of 94,500+ hours to 100,000+ hours based on ISMT in-situ thermal testing per UL 1598, LED driver data, LED light source(s) LM-80 and TM-21 data, and system reliability tool data. Luminaire shall start and operate in -40C to +40C temperature range.

B. Electronic driver must be able to dim 0-10 volts and operate per the following line voltages noted for each application. All electrical components must be RoHS compliant.

Traffic Signal Pole Luminaire - 120-277V Major Thoroughfare Luminaire - 480V Collector Street Luminaire - 120-277V Local Street Luminaire - 120-277V

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C. LED module shall be composed of distinct, individual high performance LEDS, No Chip on Board will be accepted. LED light source(s) shall have no wire bond, which prevents open circuit failures in the LED light source(s) and enhances long-term reliability and useful life. If individual LED(s) fail, they shall fail short keeping the rest of the LED light source and the entire LED luminaire operating. LED light engines must be IP66 sealed, UV stabilized surpassing ANSI C136.37. LEDs shall be tested by ISO 17025-2017 accredited lab in accordance with ANSI/IES LM-80 guidelines in compliance with EPA ENERGY STAR, extrapolations in accordance with ANSI/IES TM-21.

2.05 PERFORMANCE REQUIREMENTS:

A. Traffic Signal Pole Luminaire:

1. Luminaire shall have a maximum weight of 12.3 pounds and a maximum effective projected area of 0.523 square feet. Light output must exceed 12,750 lumens with distribution Type III. System wattage must not exceed 106 watts.

Color temperature as per ANSI/NEMA bin Neutral White, 4000 Kelvin nominal (3985K +/- 275K or 3710 to 4260K), CRI 70 Minimum. Lumen maintenance shall be 94% minimum of initial output at 60,000 hours operation. BUG Rating shall be B3-U0-G2.

B. Major Thoroughfare Luminaire:

1. Luminaire shall have a maximum weight of 12.3 pounds and a maximum effective projected area of 0.523 square feet. Light output must exceed 12,750 lumens with distribution Type II. System wattage must not exceed 106 watts.

Color temperature as per ANSI/NEMA bin Neutral White, 4000 Kelvin nominal (3985K +/- 275K or 3710 to 4260K), CRI 70 Minimum. Lumen maintenance shall be 94% minimum of initial output at 60,000 hours operation. BUG Rating shall be B3-U0-G2.

C. Collector Street Luminaire:

1. Luminaire shall have a maximum weight of 12.3 pounds and a maximum effective projected area of 0.523 square feet. Light output must exceed 8,500 lumens with distribution Type II. System wattage must not exceed 75 watts.

Color temperature as per ANSI/NEMA bin Neutral White, 4000 Kelvin nominal (3985K +/- 275K or 3710 to 4260K), CRI 70 Minimum. Lumen maintenance shall be 94% minimum of initial output at 60,000 hours operation. BUG Rating shall be B2-U0-G2.

D. Local Street Luminaire:

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1. Luminaire shall have a maximum weight of 9.4 pounds and a maximum effective projected area of 0.520 square feet. Light output must exceed 4,950 lumens with distribution Type II. System wattage must not exceed 45 watts.

Color temperature as per ANSI/NEMA bin Warm White, 3000 Kelvin nominal (3045K +/- 175K or 2870 to 3220K), CRI 70 Minimum. Lumen maintenance shall be 94% minimum of initial output at 60,000 hours operation. BUG Rating shall be B1-U0-G1.

2.06 SURGE PROTECTION:

A. Integral surge protector tested in accordance with ANSI/IEEE C62.45 per ANSI/IEEE C62.41.2 Scenario 1 Category C High Exposure with elevated 20kV/20kA waveforms for line-ground, line neutral and neutral ground, and in accordance with U.S. Department of Energy & Municipal Solid-State Street Lighting Consortium model specification for LED roadway luminaires electrical immunity requirements for High Test Level 10kV/10kA.

2.07 CONTROLS:

A. Provide 7 pin receptacle with photoelectric cell, twist-lock type, "fail on", extended life, input voltage of 120-277 VAC or 480 VAC to match Luminaire driver voltage rating. Operating range 50/60 Hz. Max rated load of 1000W/1800VA. Integrated standard surge protection of 640J. Rated for operation in an ambient temperature of - 40°C/-40°F up to +70°C/+158°F. 10-year limited warranty from supplier.

PART 3 EXECUTION – NOT USED

2023 STANDARD SPECIFICATION BLAST CLEANING OF PAVEMENT

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SECTION 02762

BLAST CLEANING OF PAVEMENT

A. Removal of existing pavement markings.

B. Preparation of pavement surfaces for new pavement markings.

1.02 RELATED SECTIONS

A. Section 01270 – Measurement and Payment

B. Section 01330 – Submittal Procedures

1.03 MEASUREMENT AND PAYMENT

A. Unit Prices.

1. Payment for blast cleaning of roadway lanes is on linear foot basis for each width, measured in place.

2. Payment for blast cleaning of symbols and legends is on square foot basis, measured in place.

3. Payment for removal of raised pavement markings, all types, is on a lump sum basis.

4. Refer to Section 01270 - Measurement and Payment for unit price procedures.

B. Stipulated Price (Lump Sum). If Contract is Stipulated Price Contract, payment for Work in this Section is included in total Stipulated Price.

1.04 SUBMITTALS

A. Conform to requirements of Section 01330 - Submittal Procedures.

B. Submit description and characteristics of proposed blasting medium and equipment for approval.

2023 STANDARD SPECIFICATION BLAST CLEANING OF PAVEMENT

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A. Blasting Media: Quality commercial product capable of producing specified surface cleanliness without deposition of deleterious materials on cleaned pavement surface.

Do not use high silica content sand that may result in high levels of free crystalline silica dust particles as blasting agent.

2.02 EQUIPMENT

A. Equipment shall be power driven and of sufficient capacity to remove pavement markings. Equipment shall utilize moisture and oil traps of sufficient capacity to remove contaminants from air and prevent deposition of moisture, oil, or other contaminants on pavement surface.

PART 3 EXECUTION

3.01 REMOVAL OF EXISTING MARKINGS

A. Remove pavement markings where necessary to prevent driver confusion, or where indicated on Drawings. Included are areas where it will be necessary for drivers to cross existing markings which they would not normally cross. Remove or obliterate markings. Do not damage pavement surface.

3.02 CLEANING FOR PLACEMENT OF MARKERS

A. Remove old pavement markings, loose material, and other contaminants deleterious to adhesion of new pavement markings to be placed. On Portland cement concrete pavement, minimize over blasting to prevent damage to pavement surface. Small particles of tightly adhering existing pavement markings may remain when complete removal will result in pavement surface damage.

B. Follow manufacturer's written instructions for proper cleaning of pavement surfaces to receive pavement marking.

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2023 STANDARD SPECIFICATION RAISED PAVEMENT MARKERS

SECTION 02764

RAISED PAVEMENT MARKERS

A. Raised pavement markers which include reflectorized and non-reflectorized traffic buttons, pavement markers and jiggle bars all of which are capable of being attached to a roadway surface by an adhesive.

1.02 RELATED SECTIONS

A. Section 01270 – Measurement and Payment

B. Section 02762 - Blast Cleaning of Pavement

1.03 MEASUREMENT AND PAYMENT

A. Unit Prices

1. Payment will be based on the number of satisfactorily installed pavement markers.

2. Unit price bid for each item shall be full compensation for materials, application of raised pavement markings, equipment, labor, tools, and incidentals necessary to complete Work in accordance with the plans and specifications.

3. Refer to Section 01270 – Measurement and Payment for unit price procedures.

B. Stipulated Price (Lump Sum). When Contract is Stipulated Price Contract, payment for Work in the Section is included in total Stipulated Price.

1.04 REFERENCES

A. TxDOT DMS-4200, Pavement Markers (Reflectorized)

B. TxDOT DMS-4300, Traffic Buttons

A. Raised Pavement Markers shall conform to the requirements of TxDOT DMS-4200, Pavement Markers (Reflectorized).

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B. Traffic Buttons shall conform to the requirements of TxDOT DMS-4300, Traffic Buttons.

C. Testing. The Engineer reserves the right to perform any or all tests required by this item as a check on the tests reported by the manufacturer. Upon request, the Contractor shall furnish, free of charge, samples of the material of the size and in the amount determined by the Engineer for test purposes. In case of any variance, the Engineer’s tests will govern.

3.01 EQUIPMENT

A. Provide the necessary equipment to conduct the work specified herein.

3.02 CONSTRUCTION

A. The Contractor shall establish guides to mark the lateral location of pavement markings as shown on the plans or as directed by the Engineer. The Engineer shall approve locations of these markings and may authorize necessary adjustments from the plans.

B. The reflective faces of all Type II markers shall be positioned so that the direction of reflection of one (1) face shall be directly opposite to the direction of reflection of the other face.

C. Raised Pavement markers Type I-C shall have clear reflector face towards traffic.

Raised pavement markers Type II C-R, shall have the clear face toward the normal traffic flow and the red face toward wrong-way traffic.

D. Unless otherwise shown on the plans or specified by the Engineer, all raised pavement markers placed in broken lines shall be…