A11__-__2022_SOW_-_Cyclic_Removal_of_Vegetation_Under_and_Adjacent_to_Road_Bridges_0004.pdf

2022 Bridge Tree Removal – NPS Plateau District, VA July 18, 2022

Scope of Work - Amended 2022 Cyclic Removal of Vegetation Under and Adjacent to Road Bridges Blue Ridge Parkway

• This scope of work will provide for the cutting down, removal of all woody vegetation, and shrubs under and adjacent to bridges and culverts on the Blue Ridge Parkway in Virginia.

The structures are located between Mile Post (MP) 105.80, and MP 216.40.

• All cut vegetation, tree branches, limbs, and larger debris will be collected and removed from the job sites and disposed of at legal state and/or local sites.

• The removal areas will be at each end and sides of county, state, and federal bridges. The bridges are constructed rock, steel, and concrete. The dimensions of each area to be cleared is identified below. A description of each area will be provided as part of this contract.

• Park personnel have identified trees that can damage the bridge structures. Park staff have walked the site locating and can marking each borderline tree for the contractor to ensure exact vegetation to remove, as required.

• A list of each work site will be provided with this scope.

• The basic location of the bridges, over and under passes, box culverts, and culvert areas will be provided identifying the locations of the trees to be re-moved.

• Contractor will also be responsible for any additional trees that are brought down in the process of the ones identified if they create an unsafe condition.

• Each site is to be left cleared of woody vegetation and shrubs.

• All tree stumps will be cut parallel to ground surface, and to within 2-inches of the ground.

• All work will be done under a single contract.

• All materials and equipment will be supplied by the Contractor. Materials and methods used should meet all Federal and State laws.

• No heavy equipment is allowed off road unless it is approved by the park point-of-contact prior to use.

• Protection of the Public: The Contractor shall always conduct his/her work as to assure the safety and convenience of the visiting public and to assure the protection of persons and property. Care shall always be taken to regulate the operations to protect visitors on the Parkway. The Contractor shall provide, erect, and maintain all necessary barricades. Take the necessary precautions for protection and safety of the public and park property.

• When possible one lane of the parkway will remain open to traffic and the contractor will provide flagmen, signage to control traffic as per Federal Highway Standards.

• All permits required to complete the proposed work will be acquired by the contractor.

• Contractor shall provide a safety plan for this project as per contracting requirements.

There are four groups of work to be completed that are listed in priority order.

Bridges/Overpasses South, Bridges/Overpasses North, Box Culverts North to South, and

Culverts North to South. The average diameter at breast height (DBH) for trees over 6”, and number of trees 6” and below are listed for each work area. One or, all of the work groups will be completed, as long as, the project funds last. A complete list of work to be completed can be found in the attachments.

1. Bridges/Overpasses-South from MP 124.0 to 216.0. There are 18 sites total to clear of trees, shrubs and weed whack the grass. There are 9 sites that have 39 trees with an average DBH of 16.1”. The maximum DBH is 30” and the minimum DBH is 10”. There are also 11 sites that have 143 trees with DBH’s between 6” and 2”.

2. Bridges/Overpasses-North from MP 105.80 to 122.43. There are 15 sites total to clear of trees, shrubs and weed whack the grass. There are 6 sites that have 29 trees with an average DBH of 9.1”. The maximum DBH is 24” and the minimum DBH is 8”. There are also 10 sites that have 171 trees with DBH’s between 6” and 2”.

3. Box Culverts North to South, from MP 108.30 to 212.10. There are 14 sites total site to clear of trees, shrubs and weed whack the grass. There are 5 sites that have 23 trees with an average DBH of 16.3”. The maximum DBH is 30” and the minimum DBH is 8”. There are also 6 sites that have 41 trees with DBH’s between 6” and 2”.

4. Culverts North to South from MP 105.80 to 216.4. There are 17 sites total to clear of trees, shrubs and weed whack the grass. There are 9 sites that have 17 trees with an average DBH of 19.3”. The maximum DBH is 30” and the minimum DBH is 8”. There are also 8 sites that have 24 trees with DBH’s between 6” and 2”.

Attachments