20-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 located at https://bids.hctx.net/bso/. The items include:

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

FOR:

To Be Signed and Sealed by the Engineer of Record

Project Description with Limits, Precinct, and UPIN

HUFSMITH-KOHRVILLE ROAD SEGMENT 3A - FROM

700' NORTH OF EZEKIEL ROAD TO APPROXIMATELY

400' NORTH OF BOUDREAUX ROAD

PRECINCT 3

UPIN 15104M23NP03

10/7/2025 https://harriscountytx.bonfirehub.com/. The items include:

https://bids.hctx.net/bso/ https://harriscountytx.bonfirehub.com/

Table of Contents Table of Contents…………………………………………………………………………………………………………………….2

Scope of Work.…………………………………………………………………………………………………………………..…...3

Summary………………………………………………………………………………………………………………………3

Contractor’s Use of Right-of-Way………………………………………………………………………………………3

Work Sequence………………………………………………………………………………………………………………3

Pipeline Testing………………………………………………………………………………………………………………6

Other Work In the Area…………………………………………………………………………………………….………6

Disposal in the Floodplain…………………………..……………………………………………………………………6

General Notice to Contractors…………………………..………………………………………………………………………7

General Notes…………………………..……………………………………………………………………………………………..8

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…………………………..…………………………………………………………………..……………..9

Texas Board of Professional Engineers Policy Advisory Regarding Procurement of Engineering Services by General Construction Contractors for Governmental Public Works Projects………..……10

Special Notice to Contractors………..……………………………………………………………………………………….12

Notice to Contractors on Storm Water Quality and Environmental Issues………..…………………………13

Section 1. Storm Sewer Pollution Prevention Plans…………………………………………………...……….13

Section 2. Storm Water Quality Management Plans………..……………………………….…………………15

Section 3. Other Environmental Issues………..……………………………….……………….…………………16

Notice to Contractors TPDES Construction General Permit Notice of Intent (NOI) Forms and Fees for Sites that Meet the Definition of Part II.E.3 (Large Construction Activities) ………..…………………..18

Notice to Contractors Bidding TraƯic Signal Installations………..………………………………………………..19

Service Outlet Location and Data Statement for Electric Service: Woodland Shore Dr..……..……20

Service Outlet Location and Data Statement for Electric Service: Boudreaux Rd……....……..……23

Notice of Specifications…………………………..………………………………………………….…………………………26

Special Provision to Item 102 Clearing and Grubbing………..……………………………….……………………..27

Special Provision to ITEM 1210 ITS TraƯic Controller Cabinet Assembly…………………..…....……..……28

COH 02086 Adjusting Manholes, Inlets, and Valve Boxes to Grade…………………………..…....……..……57

TxDOT 460 Corrugated Metal Pipe………..……………………………….……………………….……….………………61

Special Specification Item 6000 Railroad Protection - Flagging Service…………………..…....……..……68

Special Specification Item 8006 Electrical Riser Relocation for Property Owner………..……….………70

Hufsmith-Kohrville Rd Segment 3A UPIN No. 15104M23NP03

SCOPE OF WORK

SUMMARY

A. The Hufsmith-Kohrville Rd Segment 3A project construction consists of storm sewer improvements, and roadside ditch improvements ultimately discharging into HCFCD Channel M122-00-00. Major work activities include off-site disposal of about 22,508 cubic yards of excavation. The scope of work includes the reconstruction of the existing 2-lane asphalt roadway into a concrete 4-lane boulevard section with 32-foot wide medians, and curb & gutter. Drainage improvements include elimination of existing roadside ditches and construction of a new storm sewer system, storm water within the project limits will be drained into the roadway and channeled into inlets along the outside curb. The scope of work also includes clearing & grubbing, reconstruction of existing driveways in concrete, adjustments to existing utilities, new signing and pavement markings along the proposed corridor, traffic and pedestrian signals at 3 intersections (Woodland Shore, Fountain Bend, and Boudreaux), construction of a new railroad crossing east of the Boudreaux intersection, and stormwater pollution prevention efforts.

Areas are to be treated with Hydromulch seeding or Bermuda Sod (for SWPPP purposes, per plans) once construction activity ceases.

B. The overall objective for this project is to reconstruct the existing 2-lane asphalt roadway into a standard concrete 4-lane boulevard section, with curb and gutter and storm sewer.

C. The “Time of Completion” of this construction contract will be 1380 working days

(defined as consecutive calendar days).

CONTRACTOR’S USE OF RIGHT-OF-WAY

A. Access: The proposed project limits are all within existing Harris County and BNSF Right of Way. Any work within the BNSF Right of Way (or 50 feet of the tracks) will require the contractor to obtain a BNSF right of entry permit prior to start of work. Refer to the Plans for location of the right-of-way limits. The access point into and out of the project site will be decided upon by the construction project manager prior to the beginning of construction. HCED - RRD will consider alternative ingress and egress points outside of the work area with proper approval.

B. Work Area: The work area is defined as the project right-of-way or construction area within the project right-of-way identified on the Plans. Any work by the Contractor beyond the project right-of-way will need to be coordinated with OCE-CIP through temporary construction easements (TCEs).

north

WORK SEQUENCE

A. The sequence of major work activities is as follows:

1. Conduct a site walk with the Engineer to review the existing ground survey and identify areas and sections of concern.

2. Identify any damaged preexisting conditions, specifically homeowners property and document as necessary to eliminate future issues.

3. The Contractor shall notify the Engineer at least twenty-four (24) hours before beginning work. The Contractor shall start the work at any part of the project designated by the Engineer and shall prosecute the Work at as many different points as the Engineer shall direct.

4. Contractor to complete necessary submittals.

5. Construction Schedule – The Contractor will submit a detailed construction schedule within seven (7) days of notice to proceed and shall be updated every thirty (30) days thereafter throughout the remainder of the Contract Time. The schedule will be a bar type schedule and shall be of sufficient detail to show construction sequence, proposed start dates and estimated completion dates for major parts of the work. Projects over five million dollars require the Contractor to provide a computer based critical path method schedule within thirty (30) days from notice to proceed, and revised every thirty (30) days thereafter, to the satisfaction of the Engineer.

6. Prior to beginning work the Contractor shall designate in writing a competent person who will be responsible and available on the project site or in the immediate area to insure compliance with the TCP.

7. Install project signs.

8. Implement approved Traffic Control Plan

a. Coordinate with nearby schools to ensure no impact to school traffic during active school-zone hours.

b. A Traffic Control Plan (TCP) has been established for this project in accordance with the Texas Manual on Uniform Traffic Control Devices (TMUTCD). The Contractor may propose an alternate TCP, and if the alternate plan is approved by the Engineer, it may be used. The alternate TCP must be prepared in accordance with Harris County Traffic Control Guidelines (Latest Edition) and sealed by a Professional Engineer registered in the State of Texas proficient in the field of Traffic Engineering.

9. Contractor to establish construction staging areas prior to any delivery of materials. Staging areas to be approved by Engineer.

10. Set up erosion and sediment controls and conduct continuous inspection and update to SWPPP.

11. Clear and grub designated areas.

12. Contractor to establish construction staging areas prior to any delivery of materials. Staging areas to be approved by Engineer.

13. The Contractor shall provide means of ingress and egress for residents or notify owners of impact dates along any closed section of the Work. No driveway area of the Work shall be closed to access until the Construction Manager has been notified by communication. The Contractor shall communicate with each property owner prior to beginning work on driveway.

14. Coordinate with utility owners prior to construction near existing utilities.

15. Test all pipelines that Contractor is responsible for removing per the Plans and determine the status of these pipelines.

16. Remove all pipelines which conflict with the proposed construction as shown on the Plans after testing and confirming the pipeline can be safely removed.

17. Coordinate with utility owners prior to construction near existing utilities.

18. In Phase 1 construct temporary pavement on the east side of the existing pavement to maintain two lanes of traffic in Phase 2, grade a temporary ditch along the newly constructed temporary pavement and extend cross culverts where indicated in the Phase 1 traffic control plans. Re-route private driveways and install traffic control for private driveways.

19. In Phase 2 install temporary pavement markings as shown in the Phase 2 traffic control plans and shift traffic onto temporary pavement constructed in Phase 1. Construct proposed storm sewer, concrete pavement, and sidewalks on the west side as shown in the Phase 2 traffic control plans.

Construct Boudreaux Rd pavement, sidewalks, and storm sewer to the west of the Boudreaux Rd and Hufsmith-Kohrville Rd intersection as shown in the Phase 2 traffic control plans. Re-route private driveways and install traffic control for private driveways. Relocate existing utilities within the workzone as shown in the Utility Relocation Plan and Profile sheets.

20. In Phase 3 install temporary pavement markings as shown in the Phase 3 traffic control plans and shift traffic onto the concrete pavement constructed in Phase 2. Construct proposed storm sewer, concrete pavement, and sidewalks on the east side as shown in the Phase 3 traffic control plans.

Construct Boudreaux Rd pavement, sidewalks, and storm sewer to the east of the Boudreaux Rd and Hufsmith-Kohrville Rd intersection as shown in the Phase 3 traffic control plans. Re-route private driveways and install traffic control for private driveways. Relocate existing utilities within the workzone as shown in the Utility Relocation Plan and Profile sheets.

21. Construct the proposed traffic signals at Woodland Shore, Fountain Bend, and Boudreaux Rd.

22. In phase 3 finalize grading and stabilize the site with sodding and/or hydromulch turf establishment. Perform final mill & overlay of asphalt transitions at the end of Hufsmith-Kohrville Rd, and at the beginning and end of the Boudreaux Rd construction. Place final signing and striping as shown in the Signing and Pavement Marking Layout sheets.

23. After turf establishment is complete and site has been stabilized (as defined in TCEQ General Permit TXR150000 for Construction Activities, on Page 7, “Final Stabilization”), remove stormwater pollution protection items and clean up the site of construction materials as needed. Haul debris to landfill.

24. Remove traffic control devices.

25. Remove project signs.

26. Submit the red-lined as-built drawings for the project.

PIPELINE TESTING

A. Contractor is responsible for testing and determining the status of all pipelines which are shown on the Plans to be removed by Contractor by following the Specifications. This testing and determination shall occur prior to pipeline removal in order to ensure safe removal of the pipeline. The Contractor is to follow all federal and state laws which apply to the process of testing pipelines to determine the status of the pipeline and any product that might be located inside. The Contractor is also responsible for any cleanup of spills related to the testing and removal of these pipelines. Contractor to follow relevant federal and state laws when dealing with the cleanup of the site.

B. In the event the Contractor comes across an unknown pipeline which is not shown on the Plans, the Contractor shall contact the HCED-CPD construction manager to coordinate notification of known pipeline owners in the area. Before proceeding with any testing or removal of the pipeline, the Contractor shall verify with the above pipeline owners that the discovered pipeline is not one of their lines. If none of the pipeline owners claims ownership of the line, the Contractor shall proceed with testing and determination of the pipeline.

OTHER WORK IN THE AREA

A. Other non-HCED-CPD projects may be on-going in the area. Coordinate your activities with the other contractors where there may be conflicts.

DISPOSAL IN THE FLOOD PLAIN

A. Disposal of material in the base flood elevation (BFE) or the 500-year flood plain as determined by the latest FEMA approved FIRM maps is prohibited. If a disposal site is rejected on these grounds, the Contractor, at their discretion, can submit a variance request with an explanation why the disposal of material is not considered fill in the flood plain. The Engineer will consider the request and respond accordingly. The decision of the Engineer shall be final.

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.

J:\WORD\Templates\NOTICE TO CONTRACTORS NOI.doc Rev. Oct. 28, 2011

TPDES CONSTRUCTION GENERAL PERMIT

NOTICE OF INTENT (NOI) FORMS AND FEES

FOR SITES THAT MEET THE DEFINITION OF PART II.E.3

(LARGE CONSTRUCTION ACTIVITIES)

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.

The Contractor, as primary operator as defined by the TPDES General Permit, shall certify one NOI. The certified NOI, a check or money order (made payable to TCEQ) for the TPDES General Permit TXR150000 NOI Application Fee, and a completed Texas Commission on Environmental Quality (TCEQ) General Permit Payment Submittal Form shall be provided by the Contractor to Harris County at the Preconstruction Meeting (the Contractor has the option to submit the Contractor’s NOI form and fee electronically to the TCEQ. If submitted electronically, then the Contractor shall provide copies of the electronic submittal to Harris County at the Preconstruction Meeting).

Additionally, the Contractor shall provide a check payable to TCEQ in the amount of $325 for Harris County’s NOI Application Fee. This check must be mailed and or delivered to Harris County Construction Programs Division Attn. Suzette Moody- Johnson (1310 Prairie, Suite 1105, Houston , TX 77002) prior to the Preconstruction Meeting. After the Preconstruction Meeting, Harris County shall mail the certified NOI(s), check(s), and the Payment Submittal Form(s) to the TCEQ. Please note, the County’s fee cannot be paid online. CONTRACTOR WILL NOT BE ALLOWED TO

SIGN THE PURCHASE ORDER UNTIL HARRIS COUNTY RECIEVES THE CHECK.

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 – 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

102-001

02-18 Countywide

SPECIAL PROVISION

TO

ITEM 102

CLEARING AND GRUBBING

102.2 Construction Methods. Revise the first paragraph in the Construction

Methods Section as follows:

The project limits shall be cleared of all trees, brush, stumps, overhangs, logs, rubbish, shrubs, and other trash. Trees to be removed shall not be painted or damaged prior to removal. Items and certain areas designated by the Engineer for preservation shall be carefully protected from abuse, marring or damage during construction operations and preserved in accordance with the bid documents.

1210-001

1 – 29 10-15

SPECIAL PROVISION

TO

ITEM 1210

ITS TRAFFIC CONTROLLER CABINET ASSEMBLY

SPECIAL EQUIPMENT AND MATERIALS

In addition to Item 1210 the following requirements shall become part of the specifications.

6.1.2.1 Example Cabinet Configurations is voided and replaced by the following:

Package Items 340 342 346 Drawings 1 Housing #1 /Cage #1 - 1 - 6-5-4 2 Housing #2 /Cage #2 - - 1 6-5-4 3 Housing #3 (2) Cage #1 1 - - 6-5-4 4 “J” Panel Cage #1 4 2 - 6-5-8 5 “J” Panel Cage #2 - - 2 6-6-9 6 Service Panel Assembly w/ AC/EG Bus 1 1 1 6-5-11 7 Raw/Clean AC Power Assembly 2 socket 1 1 1 6-5-15A 8 Raw/Clean AC Power Assembly 4 socket - - - 6-5-15 9 Raw/Clean AC Power Extension - - - 6-5-15 10 AC Clean Module Assembly 1 - - 6-5-14 11 DC Power/ COMM Assembly 2 1 - 6-5-17 12 DC Power/ COMM Extension - - - 6-5-17 13 Cabinet Shelf Assembly - - - 6-5-10 14 Drawer Assembly 2 1 1 6-5-10 15 Input Assembly 3 2 1 6-5-35/38 16 Six Pack Output Assembly 1 1 - 6-5-23/28 17 Fourteen Pack Output Assembly 1 1 1 6-5-23/28 18 PDA5 IP w 12 and 24V DC Power Supplies - - - 6-5-19 19 PDA 5 EP with rack mount power supply 1 1 1 6-5-19A 20 Rack Mount 24V Power Supply 1 1 1 4-11-7A 21 Rack Mount 12V Power Supply (option**) 1** - - 4-11-7A 22 Fiber Optic Termination Panel 1 1 1 6-5-42 23 Input Terminal Panel (Optional 342*) - * - 6-5-13 24 Manual Advance Pushbutton Cable 1 1 1 6-5-32 25 Field Input Panel with Mounting Brackets 2 - - Figure 1-4,8 26 Field Output Panel with Mounting Brackets 2 - - Figure 5-8 27 Luminaire Wiring and Assembly (option**) 1** - - Figure 10-11 ** See Plans

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Notes: Provide each major assembly with the following:

1) 14 Pack Output Assembly:

(14) Model 200 Switch Pack Units

(6) Model 205 Flash Transfer Relay Unit (FTRs) (these relays must be designed for continuous operation in the energized position)

(12) Red Flash Program Blocks

(4) White Flash Program Blocks (1)Type 218 Serial Interface Unit

(1) Type 214 Auxiliary Monitor Unit

(1) Serial Bus 3 cable

(1) Control Serial Bus (SB1/SB2) Cable

(1) Address Block (Output Assembly)

(7) Transient Protector Assemblies

2) 6 Pack Output Assembly:

(6) Model 200 Switch Pack Units

(3) Model 205 Flash Transfer Relay Unit (FTRs) (these relays must be designed for continuous operation in the energized position)

(6) Red Flash Program Blocks

(2) White Flash Program Blocks (1)Type 218 Serial Interface Unit

(1) Type 214 Auxiliary Monitor Unit

(1) Serial Bus 3 cable

(1) Control Serial Bus (SB1/SB2) Cable

(1) Address Block (Output Assembly)

(3) Transient Protector Assemblies

3) Input Assembly Number One (1):

(10) Type 222 – Loop Detector Sensors Unit (2)Type 242 Two Channel DC Isolator Units

(1) Type 218 Serial Interface Unit

(1) Address Block (Input Assembly)

(1) Control Serial Bus (SB1/SB2) Cable

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3b) Input Assembly Number Two (2):

(10) Type 222 – Loop Detector Sensors Unit (2)Type 242 Two Channel DC Isolator Units

(1) Type 218 Serial Interface Unit

(1) Address Block (Input Assembly)

3c) Input Assembly Number Three (3):

(2)Type 252 Two Channel AC Isolator Units

(1) Type 218 Serial Interface Unit

(1) Address Block (Input Assembly)

4) Power Distribution Assembly must be PDA #5 EP with:

(1) Rack Mountable Model 216-24 Power Supply

(2) Model 204 Flasher Units

(1) Model 212 Cabinet Monitor Unit

(1) Address Block (CMU)

(1) CC Harness

(1) Serial bus 3 Cable

(1) DC Power Harness (DCP)

5) Power Distribution Assembly must be PDA #5 IP with:

(1) Model 216-24 Power Supply

(1) Model 216-12 Power Supply

(2) Model 204 Flasher Units

(1) Model 212 Cabinet Monitor Unit

(1) Address Block (CMU)

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(1) CC Harness

(1) Serial bus 3 Cable

(1) DC Power Harness (DCP)

6) Service Panel Assembly:

(1) EDCO SHA-1250 ITS, or approved equal

7) Field Wire Support Brackets. (Not required when Field Panel are used.)

Cage 1 units require one deep support bracket for each Input and Output Assembly required Cage 2 Units require one shallow support for each Input and Output Assembly

8) Series 340 Cabinet (Housing 3) must be provided with the following:

9) Two (2) Field Input Termination Panels in accordance with Drawings and mounted at the bottom of the rack. They must be attached to the rack with an angle bracket and each panel attached to the angle bracket with captive thumb-screws.

10) A total of twenty four (24) EDCO MRA–6lC–6 (12) units for each Input Panel are required.

11) Two (2) Field Output Termination Panels in accordance with Drawings and be mounted at the bottom of the rack. They must be attached to the rack with an angle bracket and each panel attached to the angle bracket with captive thumb-screws as shown in the drawings.

12) Type 222 – Loop Detector Sensors Unit must have a front panel mounted test switch per channel to simulate valid input. The test switch must be a single-pole double-throw, three position CONTROL test switch. The position assignment must be UP – constant ON; MIDDLE – NORMAL; and DOWN – momentary ON

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6.1.2.2 Cabinet Cage Configuration Drawings, Model 340 Cage 1 (Inputs/w Controller drawer Assembly, Dual)

Model 340 Cage 1 (Dual) Assembly Requirements

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6.1.2.2 Cabinet Cage Configuration Drawings, Model 340 Cage 1 (Outputs w/ Controller Drawer Assembly Dual) Assembly Requirements.

Model 340 Cage 1 Output w/ Controller Drawer Assembly (Dual) Assembly Requirements

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6.1.2.2 Cabinet Cage Configuration Drawings, Model 340 (Cage 1 Dual w/Controller Drawer Assembly)

Model 340 Cages (Dual) Cable Assembly Requirements

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6.1.2.2 Cabinet Cage Configuration Drawings, is supplemented by the following:

Two Field Input Panels shall be provided in accordance with Figures 1-4

Figure 1

Field Input Panel Mechanical

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Figure 2 Field Input Panel #1 Terminal and Labeling Input Assembly Assignment to Field Panels

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Figure 3 Field Input Panel #2 Terminal and Labeling Input Assembly Assignment to Field Panels

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Figure 4 Input Assembly wire Assignment to Field Panels

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6.1.2.2 Cabinet Cage Configuration Drawings, is supplemented by the following:

Two Field Output Panels shall be provided in accordance with Drawings 5-8

Figure 5 Field Output Panel Mechanical

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Figure 6 Field Output Wiring Diagram labels for Phases 1 Thru 7

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Figure 7 Field Output Wiring Diagram labels for Phases 8 Thru 14

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Figure 8 Field Output Wiring Diagram for 14 and 6 Pack

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Figure 9 Termination Angle Brackets

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6.1.2.2 Cabinet Cage Configuration Drawings, Model 346 Cage 2 Assembly

Cage 2 Assembly – Modified Drawer Loc.

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Article 6478.2.A.5 is voided and replaced by the following:

6478.2.A.5 Fiber Optic Termination Panel

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Special Assembly – Luminaire Assembly Drawings

Figure 10 Luminaire Assembly Wiring

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Special Assembly – Luminaire Assembly Drawings

Figure 11 Luminaire Assembly

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SPECIAL REQUIREMENTS

All fans, lights in cabinet shall have suppression to prevent noise.

Cam Unit on the door shall be positioned in a way that any part of the handle will not interfere with the key operation.

Cabinet Lighting shall be provided on the front and back of the ITS

Cabinet. LED (Light-Emitting Diode) strip lighting will be provided within the cabinet on both front and rear of cabinet.

All wiring shall be neatly wrapped and routed to the satisfaction of the engineer.

The cabinet shall be shipped with all components contained within the cabinet.

CMU referenced in Harris County SS1210 shall have the following additional requirements:

In lieu of serial port, CMU supplied for both ITS and ATC cabinets shall be provided with Ethernet port for module configuration, remote communication and diagnostics.

Each supplied CMU will be provided with two (2) red-colored “Datakey” memory device.

CMU firmware shall support flashing yellow operation, configured for operation within either ITS or ATC cabinets supplied to Harris County, programmable through software interface

At minimum the firmware shall support the following Output File Configuration in ITS cabinets

(1) 14 pack

(1) 14 pack plus (1) 6 pack auxiliary file

(3) Six pack

(2) 14 pack

For each cabinet supplied to Harris County, will be delivered with (1) Auxiliary Display Unit (ADU).Each Auxiliary Display Unit (ADU) will be supplied with one-meter length Serial Bus #3 Cable. Red, Yellow and Green status LED indicators along with Blue LED indicator for each of the thirty two channels supported by CMU. Auxiliary Display Unit (ADU) shall be provided with a Liquid Crystal Display (LCD) based menu-driven display to provide detailed status information from CMU.

CMU firmware shall support connection to Auxiliary Display Unit (ADU).

SUBSTITUTION OF MATERIALS

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Set forth in these specifications are definite models, materials, etc. of particular manufacture, however, items of equal appearance, durability, performance and design will be accepted upon approval by the County Engineer. The successful bidder is required to submit to the Harris County Public Infrastructure Department-Architecture & Engineering Division, Traffic Engineering Group, engineering brochures and information on all materials he desires to furnish and install which are of different manufacture or model number specified herein. The submittal is for approval or disapproval by the County Engineer. The submittals shall be furnished no later than two (2) days after bid opening.

GUARANTEES

The Supplier shall burn in each ITS Traffic Controller Assembly for a period of forty-eight (48) hours at a temperature of 140 degrees Fahrenheit or for a period of ninety-six (96) hours at a temperature of 75 degrees Fahrenheit. A certification shall be included with each controller cabinet indicating the dates of the burn in period, number of hours, burn in temperature, and results.

The Supplier, by accepting this contract, guarantees all workmanship, materials, and equipment performed or furnished under this specification for a period of two (2) years from date of delivery. The Supplier shall at his entire expense and within said term of guarantee repair, replace, or adjust all faulty, broken, or maladjusted materials and/or equipment furnished under this contract. Vandal damage and damage due to automobile accidents or acts of nature will not be included under contractor's guarantee.

SIDE MOUNTED BATTERY BACKUP SYSTEM (BBS) FOR ITS CONTROLLER

CABINET ASSEMBLY

1. Description

This specification is for establishing the minimum requirements for a complete emergency battery backup system for use with Light Emitting Diode Traffic Signal Modules at intersections with Harris County ITS Controller Cabinet Assemblies, (SS 1210). The Side Mounted Battery Backup System, herein described as (BBS) shall include, but not be limited to the following: Inverter/Charger, Batteries, a separate automatic and manually operated Bypass Switch and all necessary hardware and interconnect wiring. The BBS shall be capable of providing power for full run-time operation for an “LED –only” intersection (all colors: red, yellow, green and pedestrian heads) or flashing mode operation and intersection Red LED’s.

The BBS shall be designed for outdoor applications. The system shall be designed such that all electronics may either be populated in either supplied side-mounted cabinet or in the existing ITS Controller Cabinet Assembly.

Warranty

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Manufacturers shall provide a three (3) year factory-repair warranty for parts and labor on the BBS from date of acceptance but not more than 6 months from ship date. Batteries shall be warranted for full replacement for five (5) years from date of purchase. A battery shall be considered bad should it not deliver 80% of its original capability within the stated warranty period.

The warranty shall be included in the total bid price of each BBS supplied.

2. Installation Configuration:

The BBS configuration shall have the UPS Power Module installed into the existing traffic control cabinet along with the bypass manual/automatic transfer switch. The batteries shall be installed into its own side mounted battery compartment.

The side mounted battery compartment will house the batteries and battery balancer. The cabinet must meet the requirements for NEMA 3R enclosures. The housing must have the dimensions so that it may easily be attached the side of an M, P or 332 Type cabinet. Dimensions of the enclosure shall not exceed 48”H x 20” W x 10” D. The side mounted battery compartment must not interfere with the opening of the traffic cabinet door. The complete side mount compartment and door must be made from .125” thick aluminum.

i. Door: The side mount battery compartment door shall provide access to the complete cabinet interior. A continuous neoprene gasket must be used to weatherproof the enclosure when the door is closed.

ii. Lock: The lock shall be a Corbin lock with #2 keys.

iii. Finish: The entire enclosure must be a natural aluminum.

iv. Mounting: The battery side mount compartment will be mounted to the traffic control cabinet with minimum six ¼” aluminum rivets and two #10-32 x ¾” stainless steel pan-head screws. All holes will be field drilled by the Contractor to accommodate the specific mounting requirements as directed by Engineer. A 1” galvanized close nipple, 1” galvanized locknut and 1” plastic bushing shall be included to provide cable through hole access to the controller cabinet assembly.

3. Battery System:

A. Individual batteries shall be:

12 VDC Voltage Rating Minimum 100 Amp-hour rating Minimum Group Size 31 Batteries shall be easily replaced and commercially available.

B. Four (4) batteries will be supplied with each BBS. All batteries must meet their specifications out of the box immediately after the initial 24-hour top off charge.

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Batteries that require cycling to meet the AH rating specifications are not acceptable.

C. Batteries shall be deep discharge, sealed prismatic lead-calcium based

GEL/VRLA Gelled Electrolyte/ Valve Regulated Lead Acid). Batteries designed for Cycle applications, such as Solar, are not acceptable. The battery must be designed for Power Standby / BBS applications.

D. Batteries shall be certified by the manufacturer to operate over a temperature range of – 40 °C to +71 °C.

E. Batteries shall have a Manufactures Warranty of five (5) years. The warranty shall cover any battery that does not meet 80% of its original reserve capability during the warranty period. Full replacement of battery will be required for each battery that does not meet warranty requirement.

F. The batteries shall be provided with appropriate interconnect wiring for the cabinet into which they will be installed.

G. Batteries shall indicate maximum recharge data and recharging cycles.

Battery Harness

H. Battery interconnect wiring shall be via two-part modular harness.

i. Part I shall be equipped with red (+) and black (-) cabling that can be permanently connected to the positive and negative posts of each battery.

Each red and black pair shall be terminated into an Anderson style Power Pole connector or equivalent.

ii. Part II shall be equipped with the mating Power Pole style connector for the batteries and a single, insulated Power Pole style connection to the inverter/charger unit. Harness shall be fully insulated and constructed to allow batteries to be quickly and easily connected in any order to ensure proper polarity and circuit configuration.

iii. Power…