21-Attachment U - 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 https://harriscountytx.bonfirehub.com/projects.

The items include:

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

FOR:

Bear Creek Village Subdivision Drainage Improvements -

2018 Stage B Precinct 4

UPIN 25208MF3V101

02/17/2026 https://harriscountytx.bonfirehub.com/portal/?tab=openOpportunities https://harriscountytx.bonfirehub.com/portal/?tab=openOpportunities

TABLE OF CONTENTS

Description No. of Pages

Cover Page

Scope of Work

General Notice to Contractors

General Notes

Notice to Contractors of TBPE Policy Advisory Regarding Procurement of Engineering Services

By General Construction Contractors for Governmental Public Works Projects

TBPE Policy Advisory Regarding Procurement of Engineering Services By General Construction

Contractors for Governmental Public Works Projects

Special Notice to Contractors

Notice to Contractors on Storm Water Quality and Environmental Issues

U.S. Army Corps of Engineers (USACE) REIN 23-009 License No. DACW64-3-25-0056……..18

Notice of Specifications

CenterPoint Energy Specifications for Installation of Conduit System for Thoroughfare Street

Lighting

Harris County Flood Control District Project-Specific Specifications

02714 – Crushed Limestone Flexible base

02825 – Steel Pipe Gate

03481 – Concrete Bollards

City of Houston Project-Specific Specifications

02464 – Special Shoring

City of Houston Supplemental Specifications

02502S - Steel Pipe and Fittings Supplemental

02811S - Landscape Irrigation Supplemental

WHCRWA 16-Inch Water Line Relocation Work Specification Book

1 of 9 Scope of Work

BEAR CREEK VILLAGE SUBDIVISION DRAINAGE IMPROVEMENTS - 2018

STAGE B

UPIN No.25208MF3V101

SCOPE OF WORK

SUMMARY

A. The Bear Creek Village Subdivision Drainage Improvements – 2018 project is located within the Bear Creek Village Subdivision and includes work in Harris County (HC) Right-Of-Way (ROW), Harris County Flood Control District (HCFCD) easements, and Utility Easements (U.E.). Major work activities performed in HC ROW for this project include the construction of reinforced concrete storm sewer systems consisting of various sizes of reinforced concrete pipe (RCP), manholes, and large junction boxes, which connect and discharge into existing Harris County owned storm sewers. Work performed in HC ROW includes storm sewer installation within the following streets:

- Hickory Downs Drive,

- Mill Hollow Drive,

- Thistlecroft Drive,

- Heron Gate Drive,

- Seven Springs Drive,

- Eagle Trail Drive,

- Pine Mountain Ct,

- and Pine Cliff Drive.

The project also includes the regrading and reconstruction of Hickory Downs, Millow Hollow, Pine Cliff, and Thistlecroft Drive to improve sheet flow conveyance to the proposed channels. As part of the storm sewer improvements, roadways will be repaved, and existing driveways and sidewalks will be reconstructed with reinforced concrete with varying thicknesses and subgrades as shown in the plans. In addition, the project requires the relocation of a surface water line (16-inch), small diameter water distribution and raw lines (6-inch to 12-inch) and sanitary sewer (8-inch), using trenchless and open cut construction methods. Coordination with the Harris County Utility District No. 6 (HCUD-6) Operator is required for water distribution and raw line relocations and for access to back lot easements for sanitary sewer relocations, which will require Right of Entry (ROE) and diversion pumping. Coordination with the West Harris County Regional Water Authority will be required for the relocation of an existing 16-inch surface water line located along Hickory Downs Drive and Mill Hollow Drive. There are existing service lines that connect to the distribution water line that may be impacted during construction of the roadway and storm sewer and the Contractor will need to coordinate with the HCUD-6 operator prior to restoring the service line. A pay item for long and short side connections has been included in extra work items to allow the contractor to re-establish service lines that may be impacted by sawcut or regrading operations. If the operator

2 of 9 Scope of Work fixes the service connection, the contractor will be fully responsible for the invoice that will be issued by the HCUD-6 operator. Further coordination with West Harris County Regional Water Authority (WHCRWA) Construction Management Office is required for the WHCRWA water line relocation and to maintain surface water supply to HCUD-6.

The project also extends into the Addicks Reservoir within HCFCD easements, where three new channels, totaling approximately 8,450 linear feet, will be constructed to improve overland flow during extreme storms. As the Addicks Reservoir is environmentally sensitive, general avoidance and minimization measures (AMMs) are provided below to minimize impact. It is recommended that channel excavation begins 100-feet upstream of Langham Creek to reduce impacts to Langham Creek from construction activities, and minimize the work performed for Care and Control of Water The contractor will then tie-in to Langham Creek when the rest of the channel excavations are completed and stabilized Concrete slope paving will be required within Langham Creek for slope stabilization.

B. The objective of this project is to improve drainage in the Bear Creek subdivision by upgrading the underground conveyance system and creating overland drainage paths, through street regrading and proposed channels, to manage runoff during heavier storm events.

C. The “Time of Completion” of this construction contract will be 487 working days (defined as consecutive calendar days). The Time of Completion includes days to accommodate inclement weather and/or wet soil conditions caused by inclement weather. The Contractor must complete all Work within the Contract Time. The Contractor must provide all labor, supervision, equipment, materials, and other resources required, including but not limited to multiple crews, shifts, and concurrent operations as needed, to meet the Contract Time.

CONTRACTOR’S USE OF RIGHT-OF-WAY

A. Work Area: The work area is defined as the project right-of-way and easements as identified on the Plans.

B. Use of Private Property: Do not enter private property without proper Authority from the Owner and Harris County.

C. There is a segment of storm sewer that is proposed to be installed between Seven Springs Drive and Hickory Downs Drive within an existing 20-foot drainage easement. The Contractor will be required to submit the following seven days prior to commencing work within this drainage easement:

1. A detailed written plan with visual exhibits which provides the owner information on how the Contractor intends to work within the easement and the length of time anticipated for completion assuming that weather and other unforeseen field conditions does not impact schedule. The Contractor shall clearly lay out if it is expected to impact existing irrigation systems, 3 of 9 Scope of Work landscaping, and lawn. The Contractor will need to demonstrate how the owner’s property will be protected while the existing fence and gates are removed during the construction of the storm sewer. The Contractor shall provide the owner the option of meeting in person to visually show the impacted areas.

2. The Contractor shall note the existing condition of the driveway and if there are any specialty finishes that need to be noted. Harris County has included quantities to pay for the reconstruction of the impacted driveway, however, if there are specialty finishes, the Contractor shall discuss with the owner and provide them the option of reconstructing the driveway with those specialty finishes at the owner’s expense.

3. The Contractor shall note the existing fence and reconstruct the fence to equal or better conditions immediately after the site has been restored. As soon as the storm sewer reconstruction is complete at these easements, the Contractor will be responsible for re-sodding the impacted areas and replacing the existing fence and gates that are currently in place. Any irrigation impacted will need to be repaired per the extra work bid item at these location only.

4. The Contractor shall place construction safety fencing to delineate the location of the existing drainage easement boundary. If the Contractor wishes to work outside of the drainage easement boundary, it is within the Contractor’s means and methods to negotiate with the owner the use of property beyond the drainage easement. There will be no separate pay for this.

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

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

4. Implement approved Traffic Control Plan and construct necessary.

5. Install temporary construction fencing as required on Plans to protect areas not to be cleared and designated trees in connection with the project.

6. Install temporary mailboxes if necessary, this will be incidental to the traffic control pay item.

7. Clear and grub areas within the right-of-way to prepare right-of-way for proposed work. In the plans the sheet titled “Harris County ROW Clearing and Grubbing Plan”, a table has been provided which summarizes the potential trees that may need to be removed to complete the work. The removal of trees will be covered under the bid item “Preparing the ROW” and will include all tree sizes. Any additional trees that need to be removed, regardless of size, will be incidental to the bid item “Preparing the ROW”

4 of 9 Scope of Work and it will be the Contractor’s responsibility to conduct a site visit prior to bidding on the plans and ensuring that they account for the necessary tree removals.

8. Conduct necessary dewatering based on site condition to ensure groundwater table is at least five feet below excavation surface.

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

10. Sheet 157 presents the phasing plan for this project when working in HC

ROW. The sequence shall be followed as shown in the plan sheet.

o During Phase 2 of the Traffic Control phasing plan, the Contractor shall adhere to the utility conflict narrative outlined on Sheet 166 in order to comply with TCEQ requirements.

o If the Contractor wishes to deviate from this narrative, prior approval must be obtained from the EOR.

o The channel and swale work within the Addicks Reservoir has not been identified in the phasing plan, however, the Contractor can work on the subdivision street drainage improvements simultaneously while also doing work in the channel and swales area.

11. In HC ROW, demolition of existing pavement, driveways, and culverts (if called out on plans) will be conducted prior to utility relocation, storm sewer installation, and roadway construction.

12. The utility relocations (water distribution lines and sanitary sewer lines) shall be relocated prior to the start of storm sewer installation and pavement reconstruction. The contractor shall ensure that water service is re-established for residents and will be required to connect any service connections to the re-located water line. For the WHCRWA water line relocation, the Contractor shall coordinate with the Authority's Operator prior to making any connections to existing water mains to resume service.

Refer to WHCRWA Specification Section 01110 for detailed requirements.

For sanitary sewer, diversion pumping operations will need to be put in place prior to conducting any sanitary sewer relocations. A diversion pumping plan shall be submitted to the Engineer for approval prior to putting in place.

13. The storm sewer shall then be constructed from downstream to upstream to ensure there is temporary drainage during construction.

14. The proposed storm sewer shall be installed from Seven Springs Drive to Hickory Downs Drive within existing easements that are located within private property. To protect adjacent houses and other structures from ground movements, the Contractor shall install Special Shoring per Project Specification 02464. The Contractor’s Engineer shall design the special shoring system and submit signed and sealed drawings and calculations for prior approval. A comprehensive ground movement and instrumentation monitoring program is required for the duration of work within the applicable easements, including pre-construction condition surveys of structures, installation of settlement and utility monitoring points, regular survey readings, immediate reporting of movement, and submission of monitoring reports.

5 of 9 Scope of Work

15. The roadway shall be constructed with the concrete and subgrade thickness specified in the plans, before signing, striping, and restoration of the ROW is completed.

16. Conduct excavation of channels within the HCFCD easement in the Addicks Reservoir and

17. Conduct excavation of channels within the HCFCD easement in the Addicks Reservoir and excavate swales within acquired parcels. To minimize impacts to Langham Creek, the Contractor shall not open the excavation to Langham until all upstream areas have been stabilized. The contractor will need to consider de-watering for extended period of time to ensure that the excavated channel is draining during construction and does not back up into the subdivision. The pay item “Care and Control of Water in HCFCD ROW” has been provided to allow for the contractor to pay for on-going drainage operations during the excavation of the channel prior and after discharging into Langham Creek, prior to substantial completion. The Contractor will need to consider their plan once the connection to Langham Creek is established since this channel holds water year-round. The operations for this will also be paid for under the item “Care and Control of Water in HCFCD ROW”. The swales from the edge of pavement to the proposed channels should be excavated only after the street improvements have been completed.

18. All channel and swale work will need to abide by HCFCD specifications and details unless otherwise noted. If Contractor work does not meet HCFCD specifications, the work will need to be redone to meet the HCFCD specifications at no separate pay to the Contractor.

19. While work is performed in HC ROW, contractor shall also excavate, dry soils, haul, and grade channels in HCFCD easements. Contractor shall maintain erosion control measures per the plans and adhere to the AMMs detailed under the ENVIRONMENTAL IMPACTS section.

20. The Contractor shall not perform any excavation or grading within utility easements located in channels or swales until the necessary private utilities have been relocated. Contractor shall identify which utilities are being relocated, and prior to beginning any such work in these areas, the Contractor shall confirm with the Harris County Project Manager that all necessary utility relocations have been completed.

21. The HCFCD easements are located within the USACE’s Addicks Reservoir;

the Contractor shall comply at all times to the conditions of the USACE REIN 23-009 License No. DACW64-3-25-0056, issued to Harris County for work performed in the Addicks Reservoir. This License can be located herein (refer to the Table of Contents). The terms of the agreement include, but are not limited to:

a. The Contractor shall notify the USACE and HCED 14 days prior to commencement of activities within HCFCD easements, and schedule pre-work and post-work onsite inspections with the following:

(1) USACE

(i) Thomas West, Operations Manager (409-766-3851);

6 of 9 Scope of Work

(ii) David Mackintosh, Supervisory Natural Resource Manager and Site Manager (713-296-9180);

(iii) Aron Edwards, Operations Acting Land Use Coordinator (409-766-3028);

(iv)Crysta Wooten, Realty Specialist (409-766-3032)

(2) The EOR and Harris County PM.

b. The USACE may perform inspections at any time while work is being performed within HCFCD easements. The Contractor shall provide unrestricted access to the construction site to USACE personnel.

USACE is in their right to shut down operations if Contractor is not being compliant with USACE REIN 23-009. If USACE shuts down operations due to violations caused by the Contractor, additional time to the Contract will not be given.

c. If any previously unknown historic or archeological remains are discovered by the Contractor, the Contractor shall immediately cease and desist operations and notify the USACE and HCED of what has been found. The USACE will initiate the Federal and State coordination required to determine if the remains warrant a recovery effort or if the site is eligible for listing in the National Register of Historic Places.

22. All driveways removed for construction of storm sewer and roadway improvements shall be accessible during construction via temporary driveways and shall follow Item 671.

23. Conduct necessary site drainage and water/sediment controls throughout the construction period to ensure no stormwater impact to local communities or receiving water bodies.

24. CenterPoint energy has a shallow gas line crossing in the utility easement at the south end of Thistlecroft Drive. Once pavement is disturbed, a temporary air bridge shall be installed and maintained per the plans. The air bridge will remain in place until pavement has been re established across the gas line, and a CenterPoint representative approves the removal of the temporary air bridge. The pay item “Centerpoint Gas Utility Air Bridge” has been included in the bid proposal and it is intended to compensate the Contractor for the installation, maintenance, and removal of the air bridge, including the period of time it is installed until CenterPoint approves its removal.

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

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

27. Re-route private drive and install traffic control for private driveways.

28. Finalize grading and stabilize the site with sodding and hydromulch turf establishment.

29. Conduct and submit final, as-built topographic survey signed and sealed by an RPLS.

30. Remove traffic control devices from the subdivision.

7 of 9 Scope of Work

PIPELINE TESTING

A. In the event the Contractor comes across an unknown pipeline which is not shown on the Plans, the Contractor shall contact the HCED-RRD 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.

ENVIRONMENTAL IMPACTS

General Avoidance and Minimization Measures

1. A nest survey will need to be conducted 5 days prior to any woody vegetation disturbance during the migratory bird nesting season. The contractor shall provide the Harris County notice seven days prior to clearing and grubbing in the Addicks Reservoir to allow Harris County time to conduct a nest survey.

The Contractor will have 5 days (including the day of the survey) to perform the clearing activities following a bird survey. Clearing not accomplished within this timeframe will require an additional bird survey. The Contractor will be required to coordinate directly with the Harris County construction Project Manager to request surveys in a timely manner. Harris County will not be responsible for delayed requests, and additional days to the contract will not be granted. The day of the survey is day 1 of the 5 total days. Contractor shall not proceed with clearing & grubbing until written authorization has been provided by Harris County.

2. Construction activities within the proposed channels and swales will not occur when there is a rain event that releases more than 2-inches of precipitation over a 24-hour period.

3. The Contractor and their employees with the exception of truck drivers will be provided with environmental awareness training by a qualified biologist assigned by Harris County. This training will familiarize personnel with the species and their habitats that may occur on-site, measures to be implemented to protect these species, and project boundaries. This training will apply to employees working on the proposed swales and channels, with the exception of truck drivers as noted above.

Special Avoidance and Minimization Measures for Alligator Snapping Turtle

1. The Contractor will need to coordinate with Harris County in regards to work in Langham Creek prior to removing logs, cutbanks, root balls, and similar in-water features typically used by an AST. If avoidance is not feasible, existing in-water structural features will be removed temporarily and relocated as near

8 of 9 Scope of Work as possible to where the in-water structure originated during post construction activities. The Contractor will be required to carefully document the existing conditions via video and pictures.

2. If an AST is found during on-going work activities, the following should be done:

a. If an AST is detected within 200 feet of work activities in the AA

(terrestrial or aquatic environments) that may result in the harm, injury, or death to the animal, all work activities will cease immediately, and Harris County’s permitted biologist will be notified immediately. The permitted biologist will then notify TPWD and USFWSA before taking any action.

b. Based on the professional judgment of Harris County’s permitted biologist, if project activities cannot be conducted without harming or injuring the AST, all work will cease until the AST leaves the area (e.g.

turtle crawls back to the water and swims at least 200 feet away from construction activities. Under no circumstances should the AST or other wildlife be harmed or harassed (e.g. herded back into water) by construction crews or the permitted biologist.

c. If an AST is observed or found within the construction area that will not leave on its own accord within 4 hours of detection, then the permitted biologist will notify TPWD’s Kelly Norrid at 281-908-3569, to provide guidance or assist on the individual’s capture and arrangements for release at a designated relocation site.

d. AST that are captured during construction activities will be detained individually in a large plastic or similar container, with at least 3 inches of water and covered with branches or vegetation to calm it until relocation to a designated holding site or release site is arranged. If project work takes place in the summer temperatures above 80°F or winter temperatures below 60°F, the turtle will be kept in a shaded or protected area to avoid overheating or exposure to elements. AST may not be handled or detained on site without a permitted biologist present.

AST may not be stored in vehicles or closed containers. If more than one AST is detained during construction, then AST relocations may need to occur at a frequency greater than once per day.

3. The following site restrictions will be implemented to avoid or minimize effects on the AST:

a. Trash, food, food containers, and food waste will be secured at all times by individual workers or placed in animal-proof trash containers placed at the work site. The contents of trash containers will be transferred from the work site at the end of each day.

9 of 9 Scope of Work

4. The Contractor will be responsible to restore all temporary roads and work spaces to former AST habitat, no separate pay.

5. If the Contractor does not abide by the instructions provided in this section, any fines or work delays will be the sole responsibility of the Contractor and Harris County will not be held responsible for the negligence of the Contractor in adhering to these policies.

OTHER WORK IN THE AREA

A. Other non-HCED-RRD projects may be on-going in the area. Coordinate your activities with the other contractors where there may be conflicts. No separate pay will be provided for coordination between projects.

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.

tkirton Text Box

U.S. ARMY CORPS OF ENGINEERS (USACE) REIN 23-009 LICENSE NO. DACW64-3-25-0056

NOTICE OF SPECIFICATIONS

For the construction of this project, the Contractor shall use the proceeding LJA Specification Items.

For the construction of this project, the Contractor shall use the attached Special Provisions, Special Specifications, and Harris County Engineering Department (HCED) Specifications Book – 2017 Harris County Standard Specifications for the Construction of Roads and Bridges, effective date September 1, 2017. The current HCED specifications may be found at the HCED website:

https://oce.harriscountytx.gov/About/Divisions/Consultants-Resources-and- Specifications/Standards-Specification/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

When applicable, the Contractor shall also use CenterPoint Energy Standard Specifications. The current CenterPoint Energy specifications are provided herein.

When applicable, the Contractor shall also use West Harris County Regional Water Authority (WHCRWA) Standard Specifications. The current WHCRWA specifications are provided herein.

CenterPoint Energy

HOUSTON, TEXAS

WRITTEN 9-13-90 N.T. Khanh

CHECKED 9-13-90 JCD / RKM

5 7-25-07 Revised for practical application KTN JCD MMG APPROVED 9-14-90 Robert Boucher 4 2-23-99 Added conduit run for high density area KTN JCD LHH Sheet 1 of 16

NO. DATE ITEMS REVISED BY CH APP SPEC ID. 007 371 08

SPECIFICATION

FOR

INSTALLATION OF CONDUIT SYSTEM FOR

THOROUGHFARE STREET LIGHTING

CenterPoint Energy

Distribution Engineering P.O. Box 1700

Houston, Texas 77251

REFERENCE DRAWINGS:

004-237-16 Revision 4

REFERENCE STANDARDS:

REV. NO. #5 SPEC. ID. 007 371 08 Sheet 2 of 16

Table of Contents

Item No. Title Page No.

1.0 SCOPE 3

2.0 GENERAL 3

3.0 Material furnished by CNP 4

4.0 Pull-Box 5

5.0 Warning tape 5

6.0 Material furnished by the Customer 5

7.0 Conduits 6

8.0 Conduit install in bridge or elevated roadway 7

9.0 Conduit plugs 7

10.0 Liability 8

Small Pull-Box 9

Large Pull-Box 10

Typical street light conduit layout 11

Multiple conduit run street light foundation 12

Street light conduit from manhole 13

Typical terminal pole layout 14

Conduits installed in bridge or elevation roadway 15

Block-out for street light in concrete area 16

REV. NO. #5 SPEC. ID. 007 371 08 Sheet 3 of 16

1.0 SCOPE

This Specification covers CenterPoint Energy (CNP) requirements concerning the installation of pull-boxes and conduits for underground electrical service to street lights.

Number, size and direction of conduits to be specified on layout at CNP’s discretion.

Where there is a conflict between this specification and the CNP project drawing, the drawing will take precedence.

2.0 GENERAL

The following sub-articles state the general procedures to be followed for coordination of conduit system installation:

2.1 For City/County Contractor installed conduit: City/County Street Light Division shall approve proposed street light locations. City/County shall forward proposed locations to CNP. CNP shall design the conduit system and return design to City/County for contracting.

2.2 For Metro Contractor installed conduit: Metro shall forward construction drawings to COH Street Light Division for proposed street light locations. COH shall submit their approved locations to CNP. CNP shall design the conduit system and return design to COH. (For conduit to be located in utility or side lot easements, CNP will perform the work in conjunction with street light installation, with reimbursement from Metro).

2.3 CNP shall require, and note on drawings, when pull-boxes are required at the beginning and ending of each continuous conduit run, in addition to those areas where pull-boxes are currently required for crossings or distance.

2.4 CNP Street Light Engineering shall attend City/County/Metro utility coordinating meeting prior to the start of construction. The proposed conduit installation (as well as potential conflicts with existing CNP facilities) will be reviewed at that time.

2.5 In conjunction with the utility coordinating meeting, Contractor, CNP representative, Metro (if applicable) and City/County or other municipal representative shall review proposed light locations in the field.

2.6 Contractor will notify CNP Street Light Engineering, at least 2 (two) working days in advance, of Contractor's schedule for conduit installation. CNP Street Light Engineering will perform final inspections with Contractor present when all conduits had been installed.

REV. NO. #5 SPEC. ID. 007 371 08 Sheet 4 of 16

2.7 Contractor shall attempt to determine if existing underground utilities or any other obstructions would prohibit CNP's installation of proposed new street lights. If such obstructions exist, Contractor may revise the proposed location of the light up to 5 feet in any direction within street right-of-way in order to avoid obstructions.

For revised street light locations greater than 5 feet in any direction, Contractor must obtain prior approval as follows:

For projects being performed for City/County, Contractor shall notify the City Inspector, who will notify the City/County 's Public Works Department. Public Works will review the problem with the City's Street Light Division and CNP for approval of any changes. (In the case of municipalities other than City/County, Contractor shall notify City Inspector who shall notify appropriate Department of City. City shall consult with CNP for approval of any changes)

For projects being performed for Metro, Contractor must notify the Metro Inspector, who will in turn contact Metro's Utility Coordination Section. The Utility Coordination Section will review the problem with the COH's Street Light Division (or other municipality if applicable) and CNP for approval of any changes.

2.8 For any contractor-proposed changes to CNP's conduit system design, Contractor must obtain prior approval from CNP. Contractor shall first notify City/County or Metro Inspector of requested changes, who will in turn notify City/County Public Works, other municipality or Metro's Utility Coordination Section. City/County Public Works, other municipality or Metro Utility Coordination will review the requested changes with CNP for approval.

2.9 For proposed street lights on bridges or elevated roads, Contractor shall design and install foundations that meet the loading requirements of CNP Specification for Galvanized Street Light Standards 007-371-04. For information on pull-boxes and conduit, see Article 8.0.

3.0 MATERIAL FURNISHED BY CNP

CNP shall only furnish the pull-boxes (see Article 4.0) and the warning tape (see Article 5.0).

Pull-boxes will not be furnished for installation on bridges or elevated roads.

3.1 The Customer's Contractor shall notify CNP Street Light Engineering when pull-boxes and warning tape are required, seven working days in advance of planned pick-

up. Pull-boxes and tape can be obtained Tuesday through Friday, excluding holidays, from the South Houston Complex-Building D, located at 4500 South Shaver, Houston, Texas, 77034.

REV. NO. #5 SPEC. ID. 007 371 08 Sheet 5 of 16

3.2 After Contractor's notification, CNP will provide Contractor with a work order number for reference when picking up materials at the South Houston Complex-Building D.

4.0 PULL-BOX

The following sub-articles state the general requirements for pull-boxes:

4.1 The pull-boxes shall be furnished by CNP and shall be installed by the Customer's

Contractor as a part of the conduit system.

4.2 Pull-boxes shall be installed in accordance with sheet 9 & 10 of this specification. The conduit layout will specify the type of pull-box to be installed.

4.3 At the point of entrance to the pull-box, the conduits shall always have a minimum ground cover as noted on pull-box drawing. Conduit shall run up a maximum of 5 inches into the pull-box. The bends to be used with the pull-box shall have a minimum radius as shown on pull-box drawing.

5.0 WARNING TAPE

5.1 Warning tape shall be furnished by CNP and installed by the Customer's Contractor

(see sheet 11).

5.2 Warning tape shall be installed approximately 12 inches above the street light conduit.

6.0 MATERIAL FURNISHED BY THE CUSTOMER

The Customer or Customer's Contractor shall furnish the conduits (see Article 7.0), the conduits and pull-boxes installed in bridges or elevated roadways (see Artical 8.0), the conduit plugs (see Article 9.0), and all other materials not furnished by CNP.

7.0 CONDUIT

The following sub-articles state the general requirements, unless specifically stated otherwise on the layout, for the number, size and installation of the conduit system from the pull-box to the street light or terminal pole.

7.1 Conduit shall be PVC Nema Tc2 Schedule 40 or Schedule 80, U.L. label, US trade size, and meet the standards of the National Electrical Code (NEC). Size to be determined by layout.

REV. NO. #5 SPEC. ID. 007 371 08 Sheet 6 of 16

7.2 A No. 14 Aluminum or Copper wire, and a fiber pulling cord of at least 1200 pounds breaking strength shall be installed in the conduit.

Pulling cord shall be installed in such a manner as to provide adequate access and be free to pull without hindrance. Pulling cord shall not be glued or permanently attached to conduit in any manner. The pulling cord and wire shall beviewable from outside the end of conduit run.

7.3 The conduit runs shall be made "continuous" with all sections connected from beginning to end, including the conduit crossing the street. Stub-out will be required at all conduit end and street light locations (see drawing #004-237-16).

7.4 The conduit shall be placed 3 feet…