Attachement_A_Special_Provisions.pdf

Lake Tarpon Area 6 Invasive and Nuisance Vegetation Removal

In Pinellas County, Florida

TO ACCOMPANY PINELLAS COUNTY PUBLIC WORKS STANDARD TECHNICAL

SPECIFICATIONS FOR ROADWAY AND RELATED CONSTRUCTION (LATEST EDITION)

AND THE FLORIDA DEPARTMENT OF TRANSPORTATION STANDARD SPECIFICATIONS

FOR ROAD AND BRIDGE CONSTRUCTION – DIVISIONS II AND III ONLY (LATEST

EDITION):

The Order of Precedence for Pinellas County Public Works technical requirements shall be as follows:

1. Contract addendums and/or construction change orders.

2. Pinellas County Public Works Supplemental Specifications (Supplemental

Specifications).

3. Pinellas County Public Works Special Provisions (Special Provisions).

4. Pinellas County Public Works Roadway and Related Construction Standard Technical

Specifications – latest edition (PC Std. Tech. Specs.).

5. Pinellas County Utilities Standard Technical Specifications for Utilities & Related

Construction- latest edition (PC Std. Tech Specs.)

Special Provisions (Amends the Pinellas County Standard Technical Specifications for

Roadway and General Construction and Standard Technical Specifications for Utilities & Related Construction)

Section 101 of the Pinellas County Roadway Std. Tech Specs.- Mobilization. In addition to the work specified under Roadway Std. Tech. Spec. Section 101, Mobilization, the work shall also include:

No installation of station boards or placement of door hangers is required.

Supplemental Specifications (The following supplemental specifications are in addition to the Pinellas County Standard

Technical Specifications for Roadway and General Construction)

VEGETATION TREATMENT

1. SCOPE:

Provide all labor and equipment necessary to perform tree removal, tree herbicide treatment, and vegetation herbicide treatment. Contractor's staff shall be skilled in application of herbicide and are to be a certified herbicide applicator licensed by the Florida Department of Agriculture and Consumer Services for Aquatic and Natural Area Weed Management categories. All work shall be performed in accordance with the ISA or ANSI Publication A300 "Tree Care Operations - Tree, shrub and other woody plant maintenance - Standard Practices", latest edition.

2. GENERAL PERFORMANCE REQUIREMENTS:

Treat non-native non-woody vegetation with herbicide and/or mechanical removal within the designated areas on the site. All targeted vegetation shall be treated with an herbicide approved for use within aquatic areas. Application of the product shall be by a certified herbicide applicator licensed by the Florida Department of Agriculture and Consumer Services for Aquatic and Natural Area Weed Management categories. Care shall be exercised at all times to avoid incidental spraying or drift of herbicides to non-target vegetation including cessation of spraying during windy conditions. If treated vegetation continues to produce sprouts within 30 days of County's acceptance of the project, the vegetation shall be re-treated a second time at no additional cost to the County.

The primary aquatic plant species to be mechanically removed include: cattail (Typha sp.) and primrose willow (Ludwigia sp.); however, other aquatic plant species present within the work areas shall also be harvested. Removal of plants is defined, for the purpose of this project, as removal of all floating, emergent, and submerged portions of all plants and associated organic and detrital material within the designated work area to mineralized soil. The County Project Manager will be frequently inspecting the work area, probing and throwing a rake to ensure that all associated roots and associated organic matter are removed, and documenting that the final product is exposed natural sand bottom within the targeted work site.

The use of soil-active herbicides including, but not limited to, imazapyr, hexazinone, or tebuthiuron shall NOT be used within the project areas.

The waterward edge of the treatment area shall extend into the shoreline vegetation only so far as is safe for applicators on foot. No boat-carried applications within Lake Seminole are included in this bid.

3. METHOD OF MEASUREMENT:

The total quantity of vegetation treated with herbicide inclusive of all herbicides, labor, and equipment.

Pricing for this item shall exclude Debris Disposal, which is payable as separate pay items.

4. BASIS OF PAYMENT:

Payment shall be at the contract price, Lump Sum and should be included as part of the cost for any site this method is used.

MECHANICAL VEGETATION THINNING

1. SCOPE:

Provide all labor and equipment necessary to perform mechanical thinning of palmetto, other shrubs and small trees. All work shall be performed in accordance with the ISA or ANSI Publication A300 "Tree Care Operations - Tree, shrub and other woody plant maintenance - Standard Practices", latest edition.

2. GENERAL PERFORMANCE REQUIREMENTS:

The work to be completed includes mulching, in place; palmetto, shrubs, and small trees with a dbh less than 3”. Care shall be taken so that large trees to remain are not damaged. Care shall be taken to avoid removal of any oak or pine trees. Care shall be taken working near any pre-delineated wildlife habitat, including not but not limited to tortoise burrows and wetlands, to prevent any harm. Vegetation is to be completely mulched flush to the ground with no large trunk or slash pieces left in place.

3. METHOD OF MEASUREMENT:

The total quantity of vegetation mechanically thinned inclusive of all labor and equipment. Pricing for this item shall exclude Debris Disposal, which is payable as separate pay items.

Payment shall be at the contract price, Lump Sum and should be included as part of the cost for any site this method is used.

DEBRIS DISPOSAL, NON-VEGETATIVE

1. SCOPE:

Provide all labor and equipment necessary to load, transport, and dispose of all debris materials, which may include unusable materials, sediment, and other materials or structures removed from the work site.

2. GENERAL PERFORMANCE REQUIREMENTS:

Non-vegetative debris shall be disposed of at recycling facilities or permitted landfills that accept the materials.

All non-vegetative debris disposals shall be payable under this pay item and not factored into the work of other individual pay items.

The total quantity of materials transported and disposed in tons inclusive of all labor and equipment.

Disposal manifests or actual tipping fee receipts shall be provided with the invoiced amount.

Payment shall be at the contract price, per ton, with supporting disposal weigh tickets.

DEBRIS DISPOSAL, VEGETATIVE

1. SCOPE:

Provide all labor and equipment necessary to load, transport, and dispose of all debris materials, which may include vegetative material removed from the work site.

2. GENERAL PERFORMANCE REQUIREMENTS:

Vegetative debris, such as tree trimmings, and ditch or surface water vegetation, may be chipped or mulched on-site as needed and shall be disposed of at a local yard waste recycling facility. The goal of this item is to offer a cost-effective solution for disposing of or recycling vegetative debris.

All vegetative debris disposals shall be payable under this pay item and not factored into the work of other individual pay items.

The total quantity of materials transported and disposed in tons inclusive of all labor and equipment.

Disposal manifests or actual tipping fee receipts shall be provided with the invoiced amount.

4. BASIS OF PAYMENT:

Payment shall be at the contract price, per ton, with supporting disposal weigh tickets.