A06_40621268_Milling_SOW.docx

SOW for Milling Operations for Yellowstone National Park 2023 Quantities:

Base Line Items:

1. Mobilization and demobilization of milling machine to Norris Junction Pit Yellowstone National Park, WY 92190.

2. Provide milling of roadway for 78,500 square yards.

Option Line Items:

3. OPTION - Provide milling of roadway for an additional 10,000 square yards.

Period of Performance:

The contractor shall perform milling operations between August 14th and October 27, 2023. Milling shall be coordinated to work closely with NPS personnel, weather, and asphalt supply contractor scheduling.

Specifications:

Milling will be done 2 to 3 days per week alternating with a paving crew. Milling crew will need to be flexible as the operation requires one day of milling followed by a day of paving. Typically milling will occur on Mondays and Wednesdays. Milling machine will need to be on-site for the entire period of performance.

Hauling and cleaning of Equipment: All vehicles and equipment to be used in Yellowstone National Park (Park) shall be thoroughly pressure washed prior to arrival. Equipment shall be inspected at the appropriate Park entrance station by a designated Park employee and only clean equipment shall be permitted into the Park. Particular attention must be shown to the undercarriage and any surface where soil and exotic weed seeds may exist. All loaded trucks and trailers hauling aggregate shall be covered (tarped) when loaded. These efforts are critical to prevent the introduction and establishment of non-native plant species into the Park. Equipment inspection shall be scheduled by the COR and take place at the Park entrance station. Equipment found operating in the Park that has not been inspected shall be dead lined and subject to a citation.

Vegetation Management: The control of noxious weeds shall be achieved through a weed management plan. All parties submitting offers for aggregate coming into Yellowstone National Park (Park) must have a current weed management plan that has been approved by the local county weed board and Yellowstone National Park. All plans require one annual inspection by Park staff during the growing season (June-August) prior to sale or hauling of material. Parties submitting offers must provide proof of the most recent weed inspection by Park staff.

The weed inspection will designate a pit in one of the three rating categories: acceptable, conditional acceptable, or unacceptable. Aggregate from a pit designated as unacceptable can be used if the material is heat treated to 300 degrees Fahrenheit and promptly transported from the quarry to the Park or a preapproved weed free storage area to prevent possible weed contamination.

Scope for Milling Operations:

Contactor shall supply a front discharge asphalt milling machine to include one operator and one ground personnel. Milling shall be conducted on a section of roadway from Norris Junction to 3.2 miles east. This will be broken into sections being no more than 1.1 miles, with paving operations on each section will be completed before the next section is milled. Section sizes and time frames shall be coordinated with NPS COR.

Machine specifications and capabilities:

· Machine shall have a minimum 6-foot-wide milling width

· Be capable of milling 2 inches to 4 inches of depth.

· Machine shall not cause damage to any part of the pavement structure that is not being removed

· Contractor shall be responsible for all repairs and maintenance of the milling machine NPS (National Park Service) provided services:

· Hauling of material produced from the milling operation to stockpile

· Provide sweepers with operators for clean up of the milled surface

· Provide a water truck for milling operations

· All traffic control Safety: All work being done by the contractor Shall be in accordance with OSHA regulations. Contractor shall have a safety plan in place for milling operations prior to starting project.