Specifications_v1.26.23.pdf

SUPPLEMENTAL SPECIFICATIONS

ROAD AND STREET CONSTRUCTION

P.I.D. No. 003894A

MULLET CREEK CHANNEL B EROSION CONTROL

In Pinellas County, Florida

TO ACCOMPANY PINELLAS COUNTY STANDARD TECHNICAL SPECIFICATIONS FOR ROADWAY

AND RELATED CONSTRUCTION (APRIL 2022 EDITION), AND FLORIDA DEPARTMENT OF

TRANSPORTATION (FDOT) STANDARD SPECIFICATIONS FOR ROAD AND BRIDGE

CONSTRUCTION – DIVISIONS II AND III ONLY (JULY 2022):

SPECIAL PROVISIONS

Section 005-0701 of the Pinellas County Roadway Std. Tech. Specs. Survey and Layout The specification for Survey, Construction Layout shall be amended to include:

• The right of way shall be staked out with a stake or marker every 100 feet on both sides of the road.

• All property corners and section corners shall be protected through the contract period by the contractor, if a property corner is damaged, they will be restored by a Florida registered Professional Land Surveyor at no additional cost to the County.

PAY ITEM NO. 005-0701, Survey and Layout the work specified under this Section must be one Lump Sum (LS) quantity.

Section 005-0705 of the Pinellas Supplemental Specs. for Roadway and Gen. Construction. As- Built Survey

The specification for Permitting As-Built Survey Requirements by Contractor shall be amended to include:

The specific as-built requirements as stated below to comply with the United States Army Corps of Engineers (USACOE) permit and the Southwest Florida Water Management District (SWFWMD) permit.

Draft as-builts shall be provided at or prior to substantial completion for review by the Engineer and to allow for corrections (both in the field and in the survey). The following information shall be shown on the as-built survey:

• Benchmark(s) - location and description

• Datum- All elevations should be referenced to a vertical datum clearly identified on the survey

• Drainage structures - locations, dimensions, elevations, pipe sizes and material, inverts

• System grading - dimensions, elevations, contours, final grades

• Creek Stabilization, Access Road, Floodplain Expansion Area and Service Road STA 105+00 to STA 119_00 and STA 200+00 to 205+96 o Plan views showing all constructed improvements o Cross-sections at 50’ intervals and at additional locations to capture the below information:

▪ Limits of the different constructed material (riprap, matting, gabions, gabion mattresses, geocellular confinement)

▪ Grading tie-ins at property lines and roads

▪ Elevations and dimensions of floodplain planting cross sections as shown on plan sheet 28

▪ Dimensions, elevations, contours, final grades o Flexible delineator posts and concrete pads along access road o Concrete pads, pvc posts and water surface elevation in floodplain expansion area

Upon approval by the Engineer, an electronic “pdf”, to scale, of the signed and sealed as-built survey, along with the ACAD and GIS files, shall be provided.

PAY ITEM NO. 005-0705, SURVEY, Permitting As-built Requirements the work specified under this Section must be one Lump Sum (LS) quantity.

Section 110-0100 of the Pinellas Supplemental Specs. for Roadway and Gen. Construction. Clearing & Grubbing

The specification for Clearing & Grubbing shall be amended to include:

All project-specific tree and root protection; mulching within all critical root zones; tree and root pruning;

and all tree protection as shown on the plans. Contractor shall provide a certified arborist on site to supervise all tree and root pruning, as well as all tree protection installation work as shown on the plans.

PAY ITEM NO. 110-0100 Clearing & Grubbing the work specified under this Section must be one Lump Sum (LS) quantity.

Section 110 Basis of Payment is hereby amended to include the following exceptions to lump sum pay quantities as follows:

PAY ITEM NO. 110-0418 Tree, Remove, 4" to Under 16" Diameter, measured at 4' Above Ground

Surface, shall be paid for at the contract unit price per Each (EA).

PAY ITEM NO. 110-1630 Tree, Remove, 16" to Under 30" Diameter, measured at 4' Above Ground

Surface, shall be paid for at the contract unit price per Each (EA).

PAY ITEM NO. 110-3000 Tree, Remove, Equal to or above 30" Diameter, measured at 4' Above

Ground Surface, shall be paid for at the contract unit price per Each (EA).

Removal of trees from private property shall be paid under the specific pay items listed above for tree removal according to tree size. Trees located on private property are identified in the tree removal/protection plan sheets. All other tree removal on County Right of Way and within County easements shall be paid under the Clearing and Grubbing pay item.

Section 120-1100 of the Pinellas County Roadway Std. Tech. Specs. Grading

The specification for Grading shall be amended to include:

PAY ITEM NO. 120-1100 Grading

The work shall consist of all labor and material required to construct the project as shown on the Plans and as listed in the specifications. Contractor shall review the project geotechnical reports. The work to be performed under this Section must include the excavation and disposal of any unsuitable material.

PAY ITEM NO. 120-1100 Grading the work specified under this Section must be one Lump Sum (LS) quantity.

SUPPLEMENTAL SPECIFICATIONS

ROADWAY / DRAINAGE

PAY ITEM NO. 102-5000 Water for Dust Control

Description: The work specified under this Section consists of the furnishing and application of Water on the construction area including but not limited to sub-grade, un-surfaced base, or other un-surfaced traveled ways, or areas of cleared vegetation, in order to control dust resulting from construction operations.

The locations and frequency of application must be as directed by the Engineer.

Water used for controlling moisture content of surfaces to meet compaction requirements, mixture and/or working of material, etc. is at the expense of the contractor, included in the work being performed and not paid as “Water For Dust Control”. The water used may be obtained from any approved source that meets Federal, State and local requirements.

Measurement and Payment: The work specified under this Section must be paid for at the contract unit price per thousand gallons of Water for Dust Control.

PAY ITEM NO. 111-111 Concrete Matting

Description: This work shall consist of furnishing all labor, materials, equipment, loading, transporting and installation of the concrete matting in accordance with this specification.

Concrete matting is manufactured from individual concrete blocks tied together with high strength polypropylene biaxial geogrid. Each block is tapered, beveled and interlocked and includes connections that prevent lateral displacement of the blocks within the mats when they are lifted for placement.

Tied Concrete Block Mats shall be Flexamat, manufactured by Motz Enterprises, Inc. or approved equal (See Alternative Products).

Blocks. Furnish blocks manufactured with concrete conforming to the cement requirements of ASTM C150 and to the aggregate requirements of ASTM C33. Meet a minimum compressive strength of 5,000 psi at 28 days. Furnish blocks that have a minimum weight of 3 lb. per block and placed no further than 2 in.

apart.

Polypropylene Bi-Axial Geogrid. The geogrid will be composed of Polypropylene multifilament yarns coated with an acrylic based coating which is designed to resist degradation in environments with exposure to water and low pH (,4 pH) and high pH (>9 pH). When combined with the revetment mat this will yield a high tenacity, low elongating, and continuous filament polypropylene fibers that is securely cast into and embedded within the base of the concrete blocks and obtains connection strength greater than that of the geogrid. Ensure the geogrid meets the requirements of Table 1:

Underlayment Materials. Includes 5-Pick Leno Weave Fabric, Curlex® II and Recyclex TRM-V, or approved equivalent. The backing material shall be packaged within the roll of the concrete matting.

Leno Weave Five-Pick Netting: This is a woven, white polypropylene netting that provide added strength and support to the underlayments.

Curlex® II erosion control blanket (ECB) consists of a specific cut of naturally seed free Great Lakes Aspen curled wood excelsior with 80% six-inch fibers or greater fiber length. It is of consistent thickness with fibers evenly distributed throughout the entire area of the blanket. The top and bottom of each blanket is covered with degradable polypropylene netting.

Recyclex® TRM– V is a permanent non-degradable Turf Reinforcement Mat (TRM), consists of 100% post-consumer recycled polyester (green or brown bottles) with 80% five-inch fibers or greater fiber length. It is of consistent thickness with fibers evenly distributed throughout the entire area of the TRM. The top and bottom of each TRM is covered with heavy duty polypropylene net. Fibers are tightly crimped and curled to allow fiber interlock, and to retain 95% memory of the original shape after loading by hydraulic events.

Fibers have a specific gravity greater than 1.0; therefore, the blanket will not float during hydraulic events.

Recyclex TRM – V meets Federal Government Executive Order initiatives for use of products made from, or incorporating, recycled materials. Recyclex TRM – V shall be manufactured in the USA and the fibers shall be made from 100a% recycled post-consumer goods.

Cover the mat or otherwise protect it during long periods of storage to protect against degradation of the backing material as recommended by the manufacturer. Mats will be rolled for shipment and are packaged with handling straps. These handling straps shall only be used for lifting below 2 ft. to place heavy duty lifting straps under rolls. Upon delivery, rolls may be left exposed for up to 30 days. If exposure will exceed 30 days, cover or tarp the rolls to minimize UV exposure. All mats to be inspected upon delivery. Assure that all units are sound and free of defects that would interfere with the proper placing of the unit or impair the strength or permanence of the construction.

Chipping or missing concrete resulting in a weight loss exceeding 15% of the average weight of a concrete unit is grounds for rejection by the County. Replace, repair or patch the damaged areas per the manufacturer’s recommendations.

ALTERNATIVE PRODUCTS

Alternative products may be considered if composition matches the materials detailed herein. Such products must be pre-approved in writing by the Engineer prior to bid date. Alternative product packages must be submitted to the Engineer a minimum of fifteen (15) days prior to bid date. Submittal packages for alternate products must include, as a minimum, the following:

1) Product Properties – Composition of materials, stating product is comprised of the following components:

a) Concrete Blocks - minimum compressive strength of 5,000 psi at 28 days. Furnish blocks that have a minimum weight of 3 lb. per block. Blocks shall be placed no further than 2 in. apart.

b) Polypropylene Bi-Axial Geogrid – Multifilament yarns coated with an acrylic based coating with minimum tensile strength of 2055lbs.

c) Underlayment - Minimum of a 5 – pick reno weave netting, double-net excelsior (wood fiber) blanket, plus additional turf reinforcement. Underlayment must be packaged within the Tied Concrete Block Mat rolls.

2) Full-Scale laboratory testing performed by an independent 3rd party testing facility with associated engineered calculations certifying the hydraulic capacity of the proposed Tied-Concrete Block Erosion Control Mat meets the performance requirements listed in Section 4 of this specification.

3) A list of 15 comparable projects in terms of project size, application and material dimensions in the United States, where the results of the specific alternative material’s use can be verified and reviewed for system integrity and sustained after a minimum of 5 years of service life.

PERFORMANCE

Full-Scale laboratory testing performed by an independent 3rd party testing facility with associated engineered calculations certifying the hydraulic capacity of the proposed Tied-Concrete Block Erosion Control Mat meets the following requirements:

Prior to installing concrete matting, prepare the subgrade as detailed in the plans. All subgrade surfaces to be smooth and free of all rocks, stones, sticks, roots, and other protrusions or debris of any kind that would result in an individual block being raised more than 3/4 in. above the adjoining blocks. When seeding is shown on the plans, provide subgrade material that can sustain growth.

Ensure the prepared subgrade provides a smooth, firm, and unyielding foundation for the mats. The subgrade shall be graded into a parabolic or trapezoidal shape to concentrate flow to middle of mat or mats.

When vegetation is required, distribute seed on the prepared topsoil subgrade before installation of the concrete mats in accordance with the specifications.

Install mats to the line and grade shown on the plans and per the manufacturer’s guidelines. The manufacturer or authorized representative will provide technical assistance during the slope preparation and installation of the concrete block mats as needed. Provide a minimum 18 in. deep concrete mat embedment toe trench at all edges exposed to concentrated flows. Recess exterior edges subject to sheet flow a minimum of 3 in. Provide fastening or anchoring as recommended by the manufacturer or Engineer for the site conditions.

For seams parallel to the flow line in ditch or channel applications, center a minimum 3 ft. wide strip of soil retention blanket under the seam. Fasten along the seam at 5 ft. maximum spacing. Parallel seams in the center of the ditch shall be avoided when possible.

Shingle seams perpendicular to the flow line with the downstream mat recessed a minimum of 2 blocks under the upstream mat and fastened together along the seam at 2 ft. maximum spacing if required by manufacturer or engineer.

Measurement and Payment: The work specified in this Section shall be paid for at the contract unit price per Square Feet (SF) constructed and accepted.

PAY ITEM NO. 120-1111 North American Green RollMax BioNet SC150BN, or Approved Equal

Description: The work specified under this section shall consist of furnishing and installing the North American Green RollMax BioNet SC150BN, or approved equivalent erosion control matting, as indicated on the construction plans.

Measurement and Payment: The work specified in this section shall be paid for at the contract unit price per Square Yard (SY) installed and accepted.

PAY ITEM NO. 120-1112 American Meadows Native Southeast Wildflower Mix or Approved Equal, with Polyacrylamide (PAM) Tackifier AND Fast Germinating Grass Seed Mix

Description: The work specified under this Section shall consist of: applying and watering American Meadows Native Southeast Wildflower Mix or Approved Equal with Polyacrylamide (PAM) Tackifier, and a fast-germinating grass seed, in all areas under the concrete matting and on the tops of all exposed surfaces of the gabions, as indicated on the plans. All areas that have been seeded shall be watered until 80% germinated. All areas that have been seeded shall be watered until 80% germinated.

Fast-germinating grass seed used shall be in accordance with the rules and regulations under each Florida Seed Laws. Each container of seed shall be labeled as follow a. lot number b. name of the kind or kind and variety c. percentages of pure seed, other crop seed, weed seeds, and inert matter d. percentage of germination, and hard seeds (if any) e. date tested (month and year) f. names and number per pound of noxious weed seed g. name and address of shipper All seed shall be furnished in sealed standard containers, unless exception is granted in writing. Seed shall be thoroughly re-cleaned, and of uniformly good quality and appearance throughout each container. Seed, which has become wet, moldy, or otherwise damaged in transit or in storage will not be acceptable. Each lot of seed shall be subject to sampling and testing. The seed shall contain no prohibited noxious weed seed. Method of scarification shall be mechanical. Seeds shall conform to the quality requirements as shown in the following table.

Site preparation shall include preparing seedbeds to a depth of 3 to 4 inches. Where sodding and hydro-seeding will be done, all loose rock, woody material, and other obstructions that will interfere with sodding or hydro-seeding operation shall be removed and the area be reasonable smooth and uniform. Lime and fertilizer will be applied in the same quantity and manner as for seeding, where sodding is performed.

Vegetative treatment required by this specification shall consist of performing the items specified in the manner designated below. Seeding shall consist of site preparation and seeding at the rates and manner described in this specification.

The seeding rate shall be:

• Bahiagrass 30 pounds per acre or 0.7 pounds per 1000 sq. ft.

• Hulled Common 10 pounds per acre

• Bermuda grass Rye 1 bu. per acre

• Oats 2 bu. per acre

• Wheat 1 bu. per acre

• Browntop millet 30 pounds per acre 0.7 pounds per 1000 sq. ft.

The seed shall be uniformly spread over the area and covered 1/4 to 1/2-inch deep. Hydro-seeding shall consist of site preparation and applying a mixture of seed, mulch and tackifier. All hydro-seeding operations shall be accomplished with a minimum of 400 gallons of water per acre. Hydraulic seeding equipment shall include a pump rated at not less than 100 gallons per minute. The equipment shall have a suitable working pressure and a nozzle adapted to the type of work to spread the mixture uniformly over the area to be vegetated. Tanks shall be calibrated with a device to indicate the volume used or remaining in the tank.

Measurement and Payment: The work specified in this Section shall be paid for at the contract unit price per Square Yard (SY) installed and accepted.

PAY ITEM NO. 162-2000 Fill Voids in Gabions and Mattresses

Description: The work specified under this Section shall consist of furnishing and placement of clean fill material with 2.5-10% organics shall be placed on top of all gabion courses and gabion mattresses, fill material shall be watered in to ensure settling into voids and minimize migration downstream. Final grade shall be set at ½” over the top gabion wire.

Measurement and Payment: The work specified in this Section shall be paid for at the contract unit price per Square Yard (SY) installed and accepted.

PAY ITEM NO. 514-11 Turf Reinforcement Mat (TRM)

Description: The work consists of furnishing all labor and materials required to install the TRM with proper anchoring and toe-ins to existing ground as shown in the plans. The contractor shall install the TRM per the details in the plans.

Turf reinforcement mat (TRM) shall be a machine-produced mat of 100% UV-stabilized, high denier polypropylene monofilament yarns woven into permanent, high-strength, three-dimensional turf reinforcement matting. Available in either a green/black or a tan/black coloring, the mat shall be composed of polypropylene yarns woven into a uniform configuration of resilient, pyramid-like projections. The mat provides sufficient thickness, optimum open area, and three dimensionalities for effective erosion control and vegetation reinforcement against high flow induced shear forces. The mat has high tensile strength for excellent damage resistance and for increasing the bearing capacity of vegetated soils subject to heavy loads from maintenance equipment and other vehicular traffic. The material has very high interlock and reinforcement capacities with both soil and root systems and is designed for erosion control applications on steep slopes and vegetated waterways.

Materials

Standard Roll Sizes.

Properties

Performance Full-Scale laboratory testing performed by an independent 3rd party testing facility with associated engineered calculations certifying the hydraulic capacity of the proposed Tied-Concrete Block Erosion Control Mat meets the following requirements:

Equipment Provide the proper equipment to place the mat that will not damage the mat material or disturb the top soil subgrade and seed bed.

Construction Prior to installing TRM, prepare the subgrade in accordance with manufacturer specifications. All subgrade surfaces to be smooth and free of all rocks, stones, sticks, roots, and other protrusions or debris of any kind. When seeding is shown on the plans, provide subgrade material that can sustain growth.

Measurement and Payment: The work specified under this Section shall be paid for at the contract unit price per area Square Feet (SF) actually constructed and accepted.

PAY ITEM NO. 520-3 Concrete Gutter, Curb Elements, and Traffic Separator (Valley Gutter, Concrete)

Description: The work specified under this Section shall be amended to include: all furnishings and installation of concrete valley gutter and footers as shown in the plans. All concrete, adhesives, rebar, materials and any other products necessary to complete the work shall be included in this pay item.

Measurement and Payment: The work specified in this pay item shall be per Linear Foot (LF) quantity.

PAY ITEM NO. 530-2135 REPURPOSED RIPRAP (RUBBLE) WITH FILTER FABRIC

Description: The work specified under this Section consists of the reuse of existing riprap within the project limits as indicated on the plans.

Existing riprap identified to be repurposed shall be excavated, loaded into trucks, transported and placed on filter fabric in the areas as shown on the plans. The riprap must be dumped in place and arranged to form compact layers conforming to the neat lines called for in the plans, and to the thickness specified, plus or minus three inches. The riprap must be placed in a manner such that the smaller pieces are evenly distributed and placed to fill the voids between the larger pieces, and in a manner to avoid sharp exposed edges. Minimum thickness shall be 18 inches, unless otherwise specified in the plans. All excavating, loading, transporting, and placing of repurposed riprap shall be covered under this pay item.

Measurement and Payment: The work specified in this pay item shall be per Square Yard (SY), as measured after installed and accepted.

PAY ITEM NO. 550-37 14-FT WIDE DOUBLE SWING FENCE GATE (vinyl coated, black)

Description: The work specified under this pay item consists of furnishing and installing a14-ft. wide double swing gates as shown in the plans. The fence gate shall be FDOT Type B, 6' height, black vinyl coated, with top rail. All materials and any other products necessary to complete the work shall be included in this pay item.

The construction of gates under this Section must conform to the applicable requirements of Section 550 of the FDOT Specifications and Index details of the FDOT Standard Plans, latest edition, as amended herein, and the details and notes shown in the Plans.

Measurement and Payment: The work specified in the Section shall be paid for at the contract unit price per Each (EA), installed and accepted.

PAY ITEM NO. 800-0200 Install Tree Snag

Description: The work specified under this Section shall consist of the installation of tree snag components, in accordance with the construction plans. The purpose of the tree snag is to provide suitable bird and herpetofauna perches. A tree snag will be created from the removed pond cypress tree as indicated on the plans. The snag will be installed in the specified location as shown on the plans, under the supervision of the Engineer. The snag shall be oriented with the tapered end entering the water at an angle no greater than 20 degrees to a minimum elevation +4.5 feet NAVD or another elevation as directed by the Engineer.

Contractor shall provide at least 72 hours’ notice to the Engineer to schedule a site visit for the tree snag installation.

Measurement & Payment: The work specified in this section shall be paid for at the contract unit price per Lump Sum (LS) installed and accepted.

PAY ITEM NO. 900-2000 Maintenance of Channel Flow

Description: The work consists of all labor and material required to maintain channel flow including coffer dams, pumping, temporary piping and provisions for overflow conditions including cleanup after overflows occurs. This section shall also include all labor and materials required to keep the work area dry, including dewatering by well points, associated dewatering permits as required, and pumping out the work area with required sediment control of the discharged water as required by permit.

Measurement and Payment: The work specified under this Section shall be paid for at the contract unit price per Lump Sum (LS) constructed, operated and accepted.

Payment will include labor and materials required to operate and maintain the system for the entire duration of the construction of the channel and related items as detailed on the plans and listed in the specifications.

PAY ITEM NO. 900-3000 Coordination with the City of Safety Harbor and City Permit Requirements

Description: The work specified under this section shall include:

A. Obtaining permits from the City of Safety Harbor: Right-of-Way/Easement Use permit for all work within or adjacent to City of Safety Harbor Right-of-Way and easements; fence permit for the fence gate installation on Cedar Street; and tree removal permit prior to any tree removal activities.

B. Providing notice to the City of Safety Harbor 48 hours prior to excavation near the City’s sanitary force main and potable water main.

C. See Appendix 4-Special Notices for the City contact information.

D. Compliance with all City permit requirements including restoration and any repairs for damages to

City property caused by the contractor.

Measurement and Payment: The work specified under this Section shall be paid for at the contract unit price per Lump Sum (LS) as performed and completed.

PAY ITEM NO. 901-15 FDOT Type R-2 Geotextile, Geocellular Confinement, with Aggregate (FDOT 901, Coarse)

Description: The work specified under this section shall consist of furnishing and installing the geocellular confinement and associated aggregate as indicated on the construction plans.

Property Value Test Method

Material Composition

Polymer – Polyethylene with density of 58.4 - 60.2 lb/ft3 (0.935 –

0.965 g/cm3)

ASTM

D1505 or D792

Color Black - from Carbon Black Tan, Green, Other colors with no heavy metal content

N/A

Stabilizer Carbon black content 1.5%

- 2% by weight

Hindered amine light stabilizer (HALS) 2.0% by weight of carrier

N/A

Minimum ESCR 5000 hr ASTM D1693

Sheet Thickness Prior to Texture: 50 mil –5% +10% (1.27 mm -5% +10%) After Texture: 60 mil –5% +10% (1.52 mm -5% +10%)

ASTM

D5199

Surface Treatment Performance: The polyethylene strips shall be textured and perforated such that the peak friction angle between the surface of the textured / perforated plastic and #40 silica sand at 100% relative density shall be no less than 85% of the peak friction angle of the silica sand in isolation when tested by the direct shear method per ASTM D5321.

Material: The polyethylene strips shall be textured with a multitude of rhomboidal (diamond shape) indentations. The rhomboidal indentations shall have a surface density of 140 – 200 per in2 (22

– 31 per cm2). In addition, the strips shall be perforated with horizontal rows of 0.4 in (10 mm) diameter holes. Perforations within each row shall be 0.75 in (19 mm) on-center. Horizontal rows shall be staggered and separated 0.50 in (12 mm) relative to the hole centers. The edge of strip to the nearest edge of perforation shall be 0.3 in (8 mm) minimum and the centerline of the weld to the nearest edge of perforation shall be 0.7 in (18 mm) minimum. A slot with a dimension of 3/8 in x 1 3/8 in (10 mm x 35 mm) is standard in the center of the non-perforated areas and at the center of each weld.

Cell Details Percent Cell Wall Open Area

Nominal Dimensions ± 10% Density per yd2 (m2)

Nominal Area ±1% Length Width

GW20V 21.2% ± 1.0% 8.8 in (224 mm)

10.2 in (259 mm)

28.9 yd2

(34.6 m2)

44.8 in2 (289 cm2) fGW30V 16.8% ± 1.0% 11.3 in (287 mm)

12.6 in (320 mm)

18.2 yd2

(21.7 m2)

71.3 in2 (460 cm2)

GW40V 19.89% ± 1.0% 18.7 in (475 mm)

20.0 in (508 mm)

6.9 yd2 (8.3 m2)

187.0 in2

(1,206 cm2)

Short-term Seam Peel Strength

Cell Depth Minimum Certified Cell Seam Strength

3 in (75 mm) 240 lbf (1060 N)

4 in (100 mm) 320 lbf (1420 N)

6 in (150 mm) 480 lbf (2130 N)

8 in (200 mm) 640 lbf (2840 N)

Long-term Seam Peel Strength

Long term seam peel-strength test shall be performed on all resin or pre-manufactured sheet or strips. A 4.0 in (100 mm) wide seam sample shall support a 160 lb (72.5 kg) load for a period of 168 hours (7 days) minimum in a temperature-controlled environment undergoing a temperature change on a 1-hour cycle from ambient room to 130°F (54°C). Ambient room temperature is per

ASTM E41.

10,000 hour Seam Peel Strength Certification

Presto shall provide data showing that the high-density polyethylene resin used to produce the geocellular sections has been tested using an appropriate number of seam samples and varying loads to generate data indicating that the seam peel strength shall survive a loading of at least 209 lbf (95 kg) for a minimum of 10,000 hours.

SECTION

Eimension

Section Width Section Length Range (Cells Long: 18, 21, 25, 29, 34)

Variable Minimum Maxiumum

GW20V 7.7 ft (2.3 m) to 9.2 ft (2.8 m)

12.0 ft (3.7 m) 27.3 ft ( 8.3 m)

GW30V 15.4 ft (4.7 m) 35.1 ft (10.7 m)

GW40V 25.4 ft (7.7 m) 58.2 ft (17.8 m)

Measurement and Payment: The work specified in this section shall be paid for at the contract unit price per Square Yard (SY) installed and accepted.

PAY ITEM NO. 994-2000 Earth Percussion Anchors

Description: The work consists of furnishing all materials, labor, and equipment required to install the earth percussion anchors as shown in the plans. The contractor shall install the earth percussion anchors per the details in the plans.

Earth Percussion Anchor: A device designed to permanently stabilize soil via a metal foot, flexible or rigid tendon, and load bearing plate with self-locking mechanism. The anchor is driven into the ground at a specified depth, and then tensioned appropriately to load-lock for desired pull-out resistance.

Submittals:

A. General.

1. Certification:

a. The Contractor shall provide the Engineer a certificate of conformance stating the name of the EA manufacturer, product name, style, chemical and mechanical compositions and other pertinent information to fully describe the EA.

b. The Manufacturer is responsible for establishing and maintaining a Quality Control Program to assure compliance with the requirements of the specification.

Documentation describing the quality control program shall be made available prior to the approval of the EA System for use on the project.

c. The manufacturer’s Certificate of Compliance (COC) shall state that the furnished EA meets the requirements of the specification as evaluated under the manufacturer’s quality control program. The certificate shall be attested to by a person having legal authority to bind the Manufacturer.

d. The Contractor shall establish and maintain a quality control procedure to assure compliance of the EA with the requirements of the specification. Documentation describing the quality control procedure shall be provided to the Engineer.

2. Manufacturing Quality Control (MQC) test results shall be provided by the manufacturer for the EA prior to installation during the duration of the project as material is delivered to the jobsite.

3. Independent Performance Test Results shall be provided upon request.

Quality Assurance:

A. Quality Assurance Sampling and Testing will be waived for ISO 9001:2000 Certified Manufacturing Facilities. Documentation of ISO 9001:2000 Certification shall be provided upon request.

B. Otherwise testing shall be done at a minimum frequency of 1 per 500 anchors in addition to 1 at the beginning of the run and 1 at the end of the run.

Delivery, Storage, and Handling:

Product labels shall clearly show the manufacturer or supplier name, style name, and product code.

Anchoring Devices:

A. Earth Percussion Anchors with a minimum drive depth to be specified with the engineer are used to provide for permanent tie down of the surface protection material in locations specified in the drawings.

B. The Earth Percussion Anchor components shall be made of materials suitable to resist corrosion and UV degradation particularly at the soil/air interface, and strategically selected to achieve an expected design life as specified by the engineer.

C. The anchor head shall have smooth edges and shaped in a bullet like configuration with the driving end tapering to a rounded point, minimizing abrasion and installation damage to the surface protection material.

D. The top load bearing plate shall have openings allowing vegetative growth through the plate and protrude only about 7mm above the surface of the mat after installation. The plate shall also include a recessed cavity so that the cable can be cut below the plate surface.

E. The top load bearing plate shall have a locking mechanism consisting of a corrosion resistant pressure die cast zinc alloy with internal a ceramic roller & directional locking device.

F. The Tendon shall be zinc aluminum galvanized steel wire rope that is compatible with the top bearing plate in terms of wire rope diameter and the manufacturer can guarantee the wire rope is suitable for use with

G. For quality control purposes and warranty claims, Earth Percussion Anchors should be delivered to the jobsite fully assembled and ready for installation, and meet the following requirements:

Component Standard(s) Material Composition Physical Properties

Anchor Head BS EN

12844:1998 Zinc-Aluminum Alloy ZA-2 Bearing Area:3870 mm2

Wire Rope

Tendon

BS EN 12385

coated to EN

10244 Class

B

Zinc-Aluminum Coated

Carbon Steel

Diameter: 3mm, 4mm or

6mm

1X19 or 7x19 Strand

Construction

Load Bearing

Plate

BS 2056

BS EN

12844:1998

Die Cast Zinc-Aluminum

Alloy ZA-2 ; Utilizing a

Ceramic Roller &

Directional Locking

Device

Load bearing plate must have open area to allow vegetation growth.

Ferrule EN 13411-3 EN AW 5051A -

Performance:

Performance Property Value

Cable Tendon Ultimate Strength

3mm - 815kg.

4mm – 1500kg.

6mm – 2270kg.

Anchor Assembly Ultimate Strength

500kg

770kg

1270kg

Anchor Assembly Typical Working

Load* 100-1270kg

Minimum Anchor Drive Depth 0.91m

Maximum Anchor Drive Depth 5m

* Anchor performance is a function of in situ soil strength and therefore the load range in this specification should be regarded as a guide only. Site specific soil conditions shall be evaluated by a geotechnical engineer to determine the anchor type, depth, and pattern to resist slope instability. Pre-construction pull tests may be recommended.

Preparation:

A. Grade and compact areas to be treated with Earth Percussion Anchor’s (compacted as indicated or as directed by Engineer).

B. Prior to installation of any components related to the Earth Percussion Anchor system, a pre-installation meeting may be held with the Contractor, Installer, and a manufacturer’s representative. The meeting shall be scheduled by the Contractor with at least two weeks notice.

Installation:

A. During the initial installation, the Contractor may arrange for a representative of the EA manufacturer to conduct at least one day of training at the project site to demonstrate correct installation procedures for all components of the system. It is recommended that the engineer be present to better understand the proper installation procedures.

B. Measure and mark the proper pattern and positions of the EA. Install anchors using proper tools and as shown in drawings or as directed by manufacturer. Use the appropriate drive rod, to drive the anchor system into the soil surface. The EA should be driven to a depth such that after the anchor is load locked, it resides at the minimum design depth.

C. Remove the drive rod from the anchor head. Using the manufacturer’s appropriate tool, load-lock the anchor into its full working position by applying a load to the wire tendon.

D. Using the manufacturer’s tools, push the load bearing plate tight against the surface. Set the securing component and ensure load plate is tight against the surface.

E. Cut off excess tendon and discard (or leave a percentage of them in place as directed by the engineer for future random load testing).

F. Test and record pull out resistance of some percentage of installed EAs with the manufactures recommend load cell as directed in specifications, or by on-site Engineer.

Measurement and Payment: The work specified under this Section shall be paid for at the contract unit price per Each (EA) as performed and completed.

PAY ITEM NO. 995-500 Maintenance and Restoration of Cedar Street

Description: The work specified under this section shall include the Contractor responsibility for maintain and restoring Cedar Street, which is owned by the City of Safety Harbor. The City of Safety Harbor may require milling and resurfacing as part of the restoration work. All maintenance and restoration work of Cedar Street shall comply with the City’s Standard Engineering Details:

https://www.cityofsafetyharbor.com/DocumentCenter/View/4631/Standard-Engineering-Details-Rev-July- 2022-PDF?bidId=

Measurement and Payment: The work specified under this Section shall be paid for at the contract unit price per Lump Sum (LS) as performed and completed.

https://www.cityofsafetyharbor.com/DocumentCenter/View/4631/Standard-Engineering-Details-Rev-July-2022-PDF?bidId= https://www.cityofsafetyharbor.com/DocumentCenter/View/4631/Standard-Engineering-Details-Rev-July-2022-PDF?bidId=