Preparer’s Certification for

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

Special Note:

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

The items include:

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

FOR:

North Eldridge Parkway

(From South of Pine Drive to South of Lakewood Meadow Drive) Harris County, Precinct 3

UPIN 22103N306630001

DENNIS W. SANDER

P R

O

FESSIONAL ENG

NE

RE

I

DESNECIL

ST T O F XAS

ETEA

30647

1/16/2026 https://harriscountytx.bonfirehub.com/portal/?tab=openOpportunities https://harriscountytx.bonfirehub.com/portal/?tab=openOpportunities

TABLE OF CONTENTS

1. Cover Page

2. Table of Contents

3. Scope of Work

4. General Notice to Contractors

5. General Notes

6. Notice to Contractors – TBPE Policy

7. Notice to Contractors – Material Hauling

8. Notice to Contractors – SWQ and Env Issues

9. Notice of Specifications

10. Special Provisions to Standard Specs

11. Special Specifications

SCOPE OF WORK

The project entails roadway improvements extending from south of Pine Drive to south of Lakewood Meadow Drive, with drainage improvements continuing south of Pine Drive to the Cypress Park detention pond. Proposed improvements include expanding the existing half of the boulevard to establish a full standard four-lane concrete boulevard featuring curbing, storm sewers, a curbed median, left turn lanes, and the removal of existing asphalt transitions. The length of the roadway improvements spans approximately 0.65 miles, comprising two 12-feet wide travel lanes in each direction with concrete curbs, a 30-foot raised median incorporating 12-feet left turn lanes at cross streets/intersections, and approximately 7,300 feet of storm pipe varying in size from 24” to 54”.

The contract time is 186 calendar days.

May 2019

GENERAL NOTICE TO CONTRACTORS

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

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

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

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

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

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

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

NOTICE TO CONTRACTORS

ON STORM WATER QUALITY AND

ENVIRONMENTAL ISSUES

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

SECTION 1. STORM WATER POLLUTION PREVENTION PLANS

A. COVERAGE

Coverage under the Texas Pollutant Discharge Elimination System (TPDES)

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

B. PROJECT CLASSIFICATION

This project is classified as one of three categories listed below. The

Contractor shall be responsible for the storm water quality items, accordingly.

1. “Construction Sites That Do Not Require TPDES General Permit

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

or

2. “Small Construction Sites”

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

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

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

3. “Large Construction Sites”

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

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

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

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

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

SECTION 2. STORM WATER QUALITY MANAGEMENT PLANS

A. COVERAGE

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

B. CLASSIFICATION

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

1. “SWQ Permit Within Unincorporated Harris County”

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

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

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

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

3. “Grandfathered or Exempt from SWQ Permit” or “Storm Water Quality

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

SECTION 3. OTHER ENVIRONMENTAL ISSUES

A. BIOLOGICAL ISSUES

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

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

B. WATERS OF THE UNITED STATES INCLUDING ADJACENT WETLANDS

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

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

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

C. STATE OWNED SUBMERGED LANDS

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

D. CULTURAL RESOURCES

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

E. HAZARDOUS AND PETROLEUM SUBSTANCES

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

NOTICE OF SPECIFICATIONS

For the construction of this project, the Contractor shall use the attached Special Provisions, Special Specifications, and Harris County Engineering Department (HCED) Specifications Book – 2023 Harris County Standard Specifications for the Construction of Roads and Bridges, effective date October 10, 2023. The current HCED specifications may be found at the HCED website: https://www.eng.hctx.net/Consultants/Standards- Specifications/Standard-Engineering-Design-Specifications

When applicable, the Contractor shall use the Harris County Flood Control District (HCFCD) 2020 Standard Specifications Book. The current HCFCD specifications may be found at the HCFCD website: https://www.hcfcd.org/Resources/Technical-Manuals/Standard- Specifications-Related-Drawings?folderId=15985&view=gridview&pageSize=10

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

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

https://www.houstonpermittingcenter.org/office-city-engineer/design-and-construction-standards https://www.eng.hctx.net/Consultants/Standards-Specifications/Standard-Engineering-Design-Specifications https://www.eng.hctx.net/Consultants/Standards-Specifications/Standard-Engineering-Design-Specifications https://www.hcfcd.org/Resources/Technical-Manuals/Standard-Specifications-Related-Drawings?folderId=15985&view=gridview&pageSize=10 https://www.hcfcd.org/Resources/Technical-Manuals/Standard-Specifications-Related-Drawings?folderId=15985&view=gridview&pageSize=10 https://www.txdot.gov/business/resources/txdot-specifications.html https://www.txdot.gov/business/resources/txdot-specifications.html https://www.houstonpermittingcenter.org/office-city-engineer/design-and-construction-standards https://www.houstonpermittingcenter.org/office-city-engineer/design-and-construction-standards

Item 466

Headwalls and Wingwalls

1. DESCRIPTION

Furnish, construct, and install concrete headwalls and wingwalls for drainage structures and underpasses.

2. MATERIALS

2.1. General. Furnish materials in accordance with the following.

Item 420, “Concrete Substructures,”

Item 421, “Hydraulic Cement Concrete,” and

Item 440, “Reinforcement for Concrete.”

Use Class C concrete for cast-in-place and precast concrete units unless otherwise shown on the plans.

Furnish cast-in-place or precast headwalls and wingwalls unless otherwise shown on the plans.

2.2. Fabrication.

2.2.1. General. Fabricate cast-in-place concrete units and precast units in accordance with Item 420 “Concrete Substructures.” Use the following definitions for headwalls and wingwalls:

“Headwalls” refers to all walls, including wings, at the ends of single-barrel and multiple-barrel pipe culvert structures.

“Wingwalls” refers to all walls at the ends of single-barrel or multiple-barrel box culvert structures.

2.2.2. Lifting Holes. Provide no more than 4 lifting holes in each section for precast units. Lifting holes may be cast, cut into fresh concrete after form removal, or drilled. Provide lifting holes large enough for adequate lifting devices based on the size and weight of the section. The maximum hole diameter is 3 in. at the inside surface of the wall and 4 in. at the outside surface. Cut no more than 1 longitudinal wire or 2 circumferential wires per layer of reinforcing steel when locating lift holes. Repair spalled areas around lifting holes.

2.2.3. Marking. Clearly mark each precast unit before shipment from the casting or fabrication yard with the following:

the date of manufacture, the name or trademark of the manufacturer, and the type and size designation.

2.2.4. Storage and Shipment. Store precast units on a level surface. Do not place any loads on precast concrete units until design strength is reached. Do not ship units until design strength requirements have been met.

2.2.5. Causes for Rejection. Precast units may be rejected for not meeting any one of the specification requirements. Individual units may also be rejected for fractures or cracks passing through the wall or surface defects indicating honeycombed or open texture surfaces. Remove rejected units from the project, and replace them with acceptable units meeting the requirements of this Item.

2.2.6. Defects and Repairs. Occasional imperfections in manufacture or accidental damage sustained during handling may be repaired. The repaired units will be acceptable if they conform to the requirements of this Item and the repairs are sound, properly finished, and cured in conformance with pertinent specifications.

3. CONSTRUCTION

3.1. General. Remove portions of existing structures and drill, dowel, and grout in accordance with Item 420, “Concrete Substructures.”

3.2. Excavation, Shaping, Bedding, and Backfill. Excavate, shape, bed, and backfill in accordance with Item 400, “Excavation and Backfill for Structures.” Take special precautions in placing and compacting the backfill to avoid any movement or damage to the units. Bed precast units on foundations of firm and stable material accurately shaped to conform to the bases of the units.

3.3. Placement of Precast Units. Provide adequate means to lift and place the precast units. Fill lifting holes with mortar or concrete and cure. Precast concrete or mortar plugs may be used.

3.4. Connections. Make connections to new or existing structures in accordance with the details shown on the plans. Furnish jointing material in accordance with Item 464, “Reinforced Concrete Pipe,” or as shown on the plans.

Remove a length of the existing pipe from the headwall to the joint when removing existing headwalls as shown on the plans or as approved. Re-lay the removed pipe if approved, or furnish and lay a length of new pipe.

4. MEASUREMENT

This is a plans quantity measurement item. The quantity to be paid is the quantity shown in the proposal unless modified by Article 9.2., “Plans Quantity Measurement.” Additional measurements or calculations will be made if adjustments of quantities are required.

4.1. Headwalls. Headwalls will be measured by each end of a structure.

4.2. Wingwalls. Wingwalls will be measured by one of the following methods:

4.2.1. Square Foot. Wingwalls will be measured by the square foot of the front surface area of the wall of each type. The area will be measured from the top of the footing or apron to the top of the wall unless otherwise shown on the plans. If there is no footing or apron, then measurement is from the bottom of the wall.

4.2.2. Each. Wingwalls will be measured by each end of a structure.

5. PAYMENT

The work performed and materials furnished in accordance with this Item and measured as provided under “Measurement” will be paid for at the price bid for “Headwalls” of the type and pipe size (diameter or design) specified, “Wingwalls” of the type specified when measurement is by the square foot, or “Wingwalls” of the type and wall height specified when measurement is by each. For payment purposes, the wingwall height will be rounded to the nearest foot. All wingwalls and headwalls of the same type will be paid for equally when skew does not affect the type. This price is full compensation for constructing, furnishing, transporting, and installing the headwalls or wingwalls; connecting to existing structure; breaking back, removing and disposing of portions of the existing structure, and replacing portions of the existing structure as required to make connections; excavation and backfill; and concrete, reinforcing steel, corrugated metal pipe or reinforced concrete pipe, equipment, labor, tools, and incidentals.

Apron concrete or riprap between or around the wingwalls of single- or multiple-barrel box culvert structures will be measured and paid for in accordance with Item 432, “Riprap.”

The removal and re-laying of existing pipe or the furnishing of new pipe to replace existing pipe will not be paid for directly but will be considered subsidiary to this Item.

PLANTS

32 93 00 - 1

SECTION 32 93 00

PART 1 GENERAL

1.01 SECTION INCLUDES

A. Preparation of subsoil.

B. Topsoil bedding.

C. New trees, plants, and ground cover.

D. Mulch and Fertilizer.

E. Tree Pruning.

1.02 RELATED REQUIREMENTS

A. Section 31 22 00 - Grading: Topsoil material.

B. Section 32 01 90 - Operation and Maintenance of Planting: Post-occupancy maintenance.

C. Section 32 91 13 - Topsoil

1.03 PRICE AND PAYMENT PROCEDURES

A. Unit Prices:

1. Mulch: By the cubic yard for planting beds only.

2. Plants: By the unit. Includes preparation of subsoil, planting soil, placing topsoil, planting, mulching material and installation, watering and maintenance to substantial completion.

3. Trees: By the unit. Includes preparation of subsoil, planting soil, placing topsoil, planting, mulching material and installation, watering and maintenance to substantial completion.

1.04 DEFINITIONS

A. Weeds: Any plant life not specified or scheduled.

B. Plants: Living trees, plants, and ground cover specified in this Section, and described in ANSI

Z60.1.

1.05 REFERENCE STANDARDS

A. ANSI/ANLA Z60.1 - American Standard for Nursery Stock; 2004.

B. ANSI A300 Part 1 - American National Standard for Tree Care Operations -- Tree, Shrub and

Other Woody Plant Maintenance -- Standard Practices; 2008 (R2014).

1.06 SUBMITTALS

A. See Section 01 33 00 - Submittal Procedures.

B. Submit list of plant life sources with vendor contact and information.

C. Submit schedule of planting, including timing for tree relocations.

D. Current photos of all plants from the vendor that will be delivered to the site.

1.07 QUALITY ASSURANCE

A. Nursery Qualifications: Company specializing in growing and cultivating the plants with three years documented experience.

B. Installer Qualifications: Company specializing in installing and planting the plants with a minimum amount of 5 year’s experience.

C. Tree Moving Qualifications: Company specializing in operating and performing large tree transplants successfully for 10 years under the same company name and management.

Company shall also have a certified arborist on staff and involved in day-to-day activities of the project.

D. Tree Pruner Qualifications: Company specializing in pruning trees with proof of Arborist Certification.

E. Tree Pruning: Conform to ANSI A300 Part 1.

32 93 00 - 2

F. Non-native, Invasive Plant Species: Do not introduce, grow, or cultivate plant species that are invasive to the ecosystem of the project site, and whose introduction causes or is likely to cause economic or environmental harm or harm to human health.

1. Conform to laws regulating non-native and invasive plant species in Texas.

1.08 REGULATORY REQUIREMENTS

A. Comply with regulatory agencies for fertilizer and herbicide composition.

B. Provide certificate of compliance from authority having jurisdiction indicating approval of plants, fertilizer and herbicide mixture.

C. Plant Materials: Certified by federal department of agriculture; free of disease or hazardous insects.

1.09 DELIVERY, STORAGE, AND HANDLING

A. Deliver fertilizer in waterproof bags showing weight, chemical analysis, and name of manufacturer.

B. Protect and maintain plant life until planted.

C. Deliver plant life materials immediately prior to placement. Keep plants moist.

1.10 FIELD CONDITIONS

A. Do not install plant life when ambient temperatures may drop below 35 degrees F or rise above

95 degrees F.

B. Do not install plant life when wind velocity exceeds 30 mph.

1.11 WARRANTY

A. See Section 01 77 00 - Closeout Submittals, for additional warranty requirements.

B. Provide one year warranty.

C. Replacements: Plants of same size and species as specified, planted in the next growing season, with a new warranty commencing on date of replacement.

1.12 MAINTENANCE

A. See Section 01 73 00 - Execution and Closeout Requirements, for additional requirements relating to maintenance service.

B. See Section 32 01 90 – Operation and Maintenance of Planting, for additional requirements relating to maintenance service.

C. Provide a separate maintenance contract for the service and maintenance of work specified in this section for 1 years from Date of Substantial Completion.

PART 2 PRODUCTS

2.01 PLANTS

A. Plants: Species and size identified in plant schedule, grown in climatic conditions similar to those in locality of the work. Contractor to attempt to keep plantings grown locally to reduce their carbon footprint on transports.

2.02 SOIL MATERIALS

A. Topsoil: Fertile, agricultural soil, typical for locality, capable of sustaining vigorous plant growth, taken from drained site; free of subsoil, clay or impurities, plants, weeds and roots; minimum pH value of 5.4 and maximum 7.0.

2.03 SOIL AMENDMENT MATERIALS

A. Fertilizer: MicroLife Ultimate- or approved equal. Fertilizer must contain fifty percent of the elements derived from organic sources; of proportion necessary to eliminate any deficiencies of topsoil, as indicated in analysis.

32 93 00 - 3

B. Root-Stimulator Super Seaweed shall be used immediately after plants are installed following manufacturer’s instructions and should be applied every 2 weeks until substantial completion.

Contractor shall document applications and forward to the Landscape Architect for record.

C. Water: Clean, fresh, and free of substances or matter that could inhibit vigorous growth of plants.

D. Pre-Emergent Herbicide: Surflan or others to be submitted to Landscape Architect for approval.

E. Soil sulfur, Iron sulfate, Gypsum to be added if necessary.

2.04 MULCH MATERIALS

A. Mulching Material: hardwood only; uniform shavings and free from large pieces of bark, foreign matter, weed seeds, and any other organic or inorganic matter. Must be free of growth or germination inhibiting ingredients. No color mulch will be accepted.

2.05 ACCESSORIES

A. Wrapping Materials: Burlap.

B. Stakes: Softwood lumber, pointed end.

C. Cable, Wire, Eye Bolts and Turnbuckles: Non-corrosive, of sufficient strength to withstand wind pressure and resulting movement of plant life.

D. Plant Protectors: Rubber sleeves over cable to protect plant stems, trunks, and branches.

2.06 TOP SOIL MIX

A. A uniform mixture of 1 part organic compost and 3 parts topsoil by volume. Organic

Amendment preferred is Leaf Mold or landscaper’s premium Compost from approved vendor.

Contractor to submit vendor specification and sample.

2.07 SOURCE QUALITY CONTROL

A. Submit minimum 10 oz sample of topsoil proposed.

B. Testing is not required if recent tests are available for imported topsoil. Submit these test results to the testing laboratory for approval. Indicate, by test results, information necessary to determine suitability.

PART 3 EXECUTION

3.01 EXAMINATION

A. Verify that prepared subsoil are ready to receive work.

B. Saturate soil with water to test drainage.

C. Verify that required underground utilities are available, in proper location, and ready for use.

3.02 PREPARATION OF SUBSOIL

A. Prepare subsoil to eliminate uneven areas. Maintain profiles and contours. Make changes in grade gradual. Blend slopes into level areas.

B. Remove foreign materials, weeds and undesirable plants and their roots by hand. Remove any contaminated subsoil.

C. Scarify subsoil to a depth of 6 inches where plants are to be placed. Repeat cultivation in areas where equipment, used for hauling and spreading topsoil, has compacted subsoil.

D. Dig pits and beds 6 inches larger than plant root system.

3.03 PLACING TOPSOIL

A. Spread topsoil to a minimum depth of 6 inches over area to be planted. Rake smooth.

B. Place topsoil during dry weather and on dry unfrozen subgrade.

C. Remove vegetable matter and foreign non-organic material from topsoil while spreading.

D. Grade topsoil to eliminate rough, low or soft areas, and to ensure positive drainage.

32 93 00 - 4

E. Install topsoil into pits and beds intended for plant root balls, to a minimum thickness of 6 inches.

3.04 FERTILIZING

A. Apply fertilizer in accordance with manufacturer's instructions.

B. Apply after initial raking of topsoil.

C. Mix thoroughly into upper 2 inches of topsoil.

D. Lightly water to aid the dissipation of fertilizer.

3.05 PLANTING

A. Place plants as indicated on the plans for review and final orientation by Landscape Architect in the field prior to planting.

B. Set plants vertical.

C. Remove non-biodegradable root containers. Recycle containers.

D. Set plants in pits or beds, partly filled with prepared plant mix and fertilizer, at a minimum depth as indicated on drawings under each plant. Remove burlap, ropes, and wires, from the root ball.

E. Place bare root plant materials so roots lie in a natural position. Backfill soil mixture in 6 inch layers. Maintain plant life in vertical position.

F. Saturate soil with water when the pit or bed is half full of topsoil and again when full.

G. Add Root Stimulator per manufacturer’s recommendations.

3.06 PLANT RELOCATION AND RE-PLANTING

A. Relocate plants as directed by plans and Landscape Architect.

B. Relocated trees must be done by a company specializing in relocating large species using spade or Arborlift methods.

C. Relocated trees on site must include a year warranty.

D. Ensure subdrainage is installed and tied into drainage system prior to planting.

3.07 PLANT SUPPORT

A. Brace plants vertically with plant protector wrapped guy wires and stakes according to the details and as needed.

B. Around playground or active areas use protective toppers to eliminate the sharp tops of stakes from being exposed.

3.08 TREE PRUNING

A. Prune trees as recommended in ANSI A300 Part 1.

B. Prune newly planted trees as required to remove dead, broken, and split branches.

C. DO NOT over prune or Contractor will have to replace at their own expense and no cost to the

Owner.

3.09 FIELD QUALITY CONTROL

A. Perform field inspection and testing in accordance with Section 01 40 00.

B. Plants will be rejected if a ball of earth surrounding roots has been disturbed or damaged prior to or during planting.

C. Owner and Owners representative have the authority to reject any plant material that does not meet or exceed the plans or submittals provided or that show signs of stress or pests.

3.10 MAINTENANCE

A. See Section 32 01 90 - Operation and Maintenance of Planting for post-occupancy maintenance.

END OF SECTION

06-25

OTU

SPECIAL SPECIFICATION

ITEM 7037

CLOSED CIRCUIT TELEVISION (CCTV) INSPECTION

OF DRIVEWAY CULVERTS OR REINFORCED BOX CULVERTS

AND/OR STORM SEWER SYSTEMS

(INCLUDING CLEANING)

7037.1 DESCRIPTION.

The Contractor shall furnish all materials, labor and equipment necessary for the inspection, of the existing constructed driveway culverts, reinforced box culverts and/or storm sewer systems or indicated on drawings provided by Harris County, or other sources. Cleaning and dewatering required in order to do the inspection is included in this item. Where drawings are not available, the Contractor shall provide sketches indicating the size, orientation and size of the storm sewer components, including manholes, inlets or other features.

Inspection shall be by means of a closed circuit television inspection; and be documented in a written report, narration, including electronic media of the televised inspection.

7037.2 DEFINITIONS.

Manholes and Inlets. Indicate location of manholes, inlets or other storm sewer components; including size, material type and orientation.

Pipe Run/Storm Sewer. Continuous lengths/segments of pipe or boxes that run between manholes, inlets, outfall and other features.

Lateral Pipe and/or Lead Pipe. The Pipe connecting an inlet to a manhole and/or a junction box; typically used in curb and gutter street design used in boulevard or subdivision roadway designs.

Outfall Pipe. A section of pipe run from a manhole to an outfall ditch.

7037.3 REQUIREMENTS.

Harris County. Harris County shall provide at no cost to the Contractor the following items during the entire project:

Item 7037 Page -2-

08-21

OTU

A. Site Access. Access to the site of work with sufficient area for the placement of the equipment and personnel. All work will be within easements and roadway rights-of-way.

B. Drawings. A set of “as-built” drawings indicating the location of the storm sewer system to be inspected, along with identification of the manholes, inlets, outfalls and all pipe runs, where available.

Contractor.

A. Prior to beginning the televising of the storm sewer system, a video sign board or teleprompter shall be filmed showing the name of the project, the date, and time filming begins.

B. The Contractor shall provide Traffic Control based on the requirements of the area.

7037.4 CONSTRUCTION.

Equipment and Procedures. A self-contained and air-conditioned mobile trailer or van shall be provided which is large enough to accommodate representatives of the Engineer and the Contractor for purpose of viewing/monitoring the work while inspection is in progress. Trailer or van shall be equipped with a closed-circuit television camera, color monitor, video recording device, computer, winches (power and mechanical), cable, and cable reel, suitable metering device so that exact location of camera within the line being televised can be noted at all times, and all necessary equipment for successful completion of television inspection, recorded on electronic media.

Perform cleaning prior to performing closed circuit television inspection.

Cleaning shall include utilizing variable water pressure nozzles, up to 3,000 psi. The CCTV contractor shall remove, collect, transport, and dispose of sand, debris, and liquid wastes to legal disposal sites.

The Contractor may periodically decant and dispose of excessive water from the operation, but this liquid must be screened and discharged at the outfall. The resulting/remaining sludge and solids will be removed form site and disposed of accordingly.

If the Contractor opts to use drying beds or other means of reducing the liquid content of the materials to be disposed of, it is at their cost.

Television equipment shall consist of a tilt and pan color camera and a monitoring unit connected by a coaxial cable. Camera shall be small enough to ensure passage through the lines, be waterproof and provide a continuous, clear picture showing the entire inside periphery of the pipe or box culvert. The Contractor shall provide suitable lighting system to allow

Page -3-

08-21

OTU

all features and condition of the pipe to be clearly visible on the colored electronic media.

The television inspection shall be performed on one manhole section at a time. Each manhole section being inspected shall be isolated from the remainder of the line by the use of a line plug to insure total viewing of the inside periphery of the pipe or box culvert. The inspection shall be performed by pulling the television camera through the line along the axis of the pipe or box culvert. A crawler type tractor for the camera is also acceptable. The inspection shall be performed in a forward and/or backward direction, according to line conditions at the time the inspection is made.

Alternately, a hydro-jet system can also be used.

During the television inspection operation an inspection record shall be kept which will show clearly the exact location, in relation to the centerline of the adjacent manhole, of each defect, crack, gap, or separation discovered by the television. To ensure accurate measurement, the measurement shall be made from an object at a fixed distance in front of the television camera, being positioned at the exact location of the defect, crack, and separation of pipe or box culvert failure. The measurement reading shall be made at ground level by means of a meter device.

Should a water level be encountered that would prevent the viewing of the storm sewer interior, the Contractor shall dewater the segment to allow for inspection. In the case where there is constant water infiltration due to an adjacent pipe break, the Contractor shall notify the utility operator.

7037.5 SUBMITTALS.

Record. A record shall be kept of the locations of defects located in the storm sewer system or driveway culverts using the distance from the nearest manhole so that the defects can be easily re-located.

CCTV Inspection. Contractor shall furnish a complete recorded / televised, narrated, record of all lines televised or alternatively a thumb drive or other electronic media. All recorded media shall have a continuous audio recording that reflects footage during the televising operations. At the completion of each recording, the televised media become the property of Harris County. All costs incurred in connection with the television operation are to be included as incidental to televising and recording. The electronic media shall be labeled with the following:

A. Contractor’s name B. Inspection Type C. Date of Inspection D. Project Name/Location

Page -4-

08-21

OTU

E. GPS Coordinates or Georeferenced System F. Segments Inspected – With Diagram of Conditions G. Index of Files H. Date Submitted

Report. Following the CCTV inspection, the Contractor shall provide a copy of a written report in PDF format indicating the physical location of the storm sewer elements, with a map that illustrates the relationship between the televised footage and above ground location between manholes, size of lines, pipe materials used, location of deficiencies observed, and depth of flow line relative to the natural grade.

7037.6 MEASUREMENT.

This Item shall be measured by Lump Sum (LS) or Linear Foot (LF) of closed-circuit inspection which shall include the full cost of cleaning or dewatering and televising/recording the condition of the driveway culvert or storm sewer system.

7037.7 PAYMENT.

The work performed and materials furnished in accordance with this Item and measured as provided under “Measurement” shall be paid for at the unit bid price for “CCTV Inspection” of the driveway culvert type or storm sewer system specified. This price is full compensation for cleaning or dewatering and televising / recording the condition of the driveway culvert or storm sewer system, all materials, tools, equipment, labor and incidentals necessary to complete the work. Payment shall be made when the electronic media accompanying the written report is received and accepted by the County.

END OF ITEM 7037