A04_Bamboo_Herbicide_Treatment_SOW.pdf

Remove Invasive Species Yorktown Sites- 2024

01110

Remove Invasive Species to Restore Interpreted Viewsheds and Protect Cultural Resources Yorktown

PMIS 226370

SUMMARY OF WORK

PART 1 GENERAL

A. DESCRIPTION

The work of this contract consists of treating 8.76 acres previously infested with live and dead mature invasive species in four (4) locations within Colonial National Historical Park within the Village of Yorktown in Yorktown, Virginia.

Work includes foliar herbicidal treatment of a specified concentration of glyphosate, mixed with non-ionic surfactant and blue dye with ground sprayer equipment. Apply thoroughly on leaves just to the point of drip. The blue dye should cover the leaves and be detected visually after dried. Aerial spraying will not be approved. Target species are Golden Bamboo (Phyllostachys aurea), invasive Empress Trees (Paulownia tomentosa), Chinese privet (Ligustrum sinense), Chinese Wisteria (Wisteria Chinensis) and English Ivy (Hedera helix. The application of foliar herbicide treatment should take place once the bamboo has resprouted and grown 3-4’ tall (when the bamboo resprouts leaves). Slopes vary from level to 35% ravines.

PERIOD OF WORK:

Herbicidal treatment should occur in the spring once the vegetation has resprouted into full leaf or (3-4 feet) to apply foliar treatment. A repeat herbicide treatment to capture plants that did not die in the first round will be spot treated as needed. This shall be completed no later than September.

B. LOCATIONS

Tobacco Road and Moore House:

The 5.1-acre Tobacco Road site is located along the west of Zweybrucken Rd, in-between the NPS Yorktown Battlefield Visitor Center and Victory Monument in Yorktown, Virginia. The site can be accessed from the base of the grassy top and from the bottom of the trail with access from the Picnic Area. The use of the gravel Tobacco Road is also available. Most of the site is flat however a portion contains steep slopes up to >35%.

The 1.3-acre Moore House site is located just north of the intersection of Moore House Rd and Ballard St in Yorktown, VA, to the west of the historic Moore House structure.

Cornwallis Cave and Windmill Point:

The 1.85-acre Cornwallis Cave site is located near the intersection of Comte De Grasse St and Water St in-between Water St and the historic Dudley Digges house in Yorktown, VA. This area has uneven terrain and slopes up to >35%.

The 0.51-acre Windmill Point site is located to the southwest of the intersection of Mathews St. and Water St. in Yorktown, VA. Main access should be at the flat area along Mathews St. (VDOT road connecting Water Street with Route 17).

C. CONTRACTOR'S USE OF PREMISES

Safety: The contractor shall always conduct his operations to ensure the least inconvenience to the public. Provide a Safety sign and trail closure plan for Park review before starting work. They should at a minimum include the following.

a) Provide MUTCD-rated safety cones and Road Traffic signs and approval by VDOT for Windmill Point site.

b) Confine storage of materials and equipment to the open flat areas as per NPS park direction.

c) Any equipment left should only be left locked in some vandal-proof container out of sight from most of the visitor areas.

2. Preservation of Natural Features: Confine all operations to the work limits of the project. Prevent damage to natural surroundings. Restore damaged areas, repairing or replacing damaged trees and plants, at no additional expense to the Government.

a) Provide temporary barriers to protect existing trees and plants and root zones as feasible.

b) Do not remove, injure, or destroy trees or other plants without prior approval.

c) Do not fasten ropes, cables, or guys to existing trees.

d) Carefully supervise vegetation treatment close to live trees to avoid damage from overspray.

3. Archeological sites: The Park will flag the edges of remnant earthworks found on sections of the top of the slopes. No heavy equipment is allowed to drive over the area. See further details on the inadvertent discovery of surface artifacts in Section 01350, Archeological Protection.

4. Hauling Restrictions: Comply with all legal load restrictions in the hauling of materials. Load restrictions on park roads are identical to the state load restrictions with such additional regulations as may be imposed by the Park Superintendent.

D. SPECIAL WORK REQUIREMENTS

1. Holiday Work Restrictions: No on-site work shall be performed on any Federal Holidays and a five-day workweek unless otherwise directed by the COR. This includes Yorktown Day, October 19.

E. FIELD VERIFICATION

1. A pre-bid field visit is RECOMMENDED. The sites need to be seen to ensure that the bidder understands the complexity of the level of effort.

2. Field verify all new and existing dimensions affecting the work of this contract before ordering products.

F. MATERIALS

1. All materials shall be Contractor furnished from outside the park.

PART 2 PRODUCTS

A. See SECTION 022300 Cutting and Spraying

B. See SECTION 01560 Barriers and Signage

PART 3 EXECUTION

A. See SECTION 022300: Cutting and Spraying

END OF SECTION

SECTION 01350

ARCHEOLOGICAL PROTECTION

1.1 DESCRIPTION

The work of this section consists of protecting archeological resources contained in soil deposits.

1.2 DEFINITIONS

A. Resources: Prehistoric, historic, and recent 20th century artifacts, including charcoal, human bones, ash, fire rocks, and building materials that indicate the presence of past human occupation.

B. Archeologically Sensitive Areas: Areas that have been determined to contain significant in-the-ground archeological resources.

C. Nonsensitive Areas: Areas that have a low likelihood of containing significant in-the-ground archeological resources.

D. Archeological Monitor: Representative of the Government designated to record and collect cultural resources for compliance with Government regulations to protect in-the-ground resources.

PART 2-SUBMITTALS

As specified in Section 01330

A. 30 days before the start of ground-disturbing site work, submit a Daily Work Schedule, detailing work in archeologically sensitive areas identified by the park. Key schedule to drawings and include the following information.

1) Starting and ending dates of herbicidal treatment.

2) Locations of temporary facilities, such as barriers, field offices, staging areas, sanitary facilities, borrow pits, and haul and access roads.

4) Methods and equipment used for each type of construction.

5) Plan for relocating work in the event of temporary work stoppages at each archeologically sensitive area

QUALITY ASSURANCE

At least one week before on-site work begins, Contractor shall meet with Contracting Officer and Staff Archeologist to discuss Daily Work Schedule and equipment and special methods to be used in archeologically sensitive areas. The contractor shall ensure that the approved Daily Work Schedule is followed throughout construction.

Bamboo Remove Invasive Species Yorktown Sites 01350

SECTION 01560

BARRIERS & SIGNAGE

PART 1 GENERAL

1. The work of this section consists of furnishing, installing, and maintaining barriers and signage to protect existing facilities and the public from construction operations.

PART 2 PRODUCTS

A. GENERAL

1. Material may be new or used but shall be suitable for the intended purpose. Fencing and Barriers shall be structurally adequate and neat in appearance.

B. BARRICADES AND SIGNS

1. Manual on Uniform Traffic Control Devices (MUTCD), Part VI, 1988 edition

2. Herbicide Treatment signs or flags to indicate the area was sprayed, as per Virginia Pesticide notification requirements.

C. BARRIER TAPE

1. Barrier tape imprinted with "CAUTION: CONSTRUCTION AREA".

PART 3 EXECUTION

A. PROTECTION OF PUBLIC

1. Barricade or otherwise block off only those areas of immediate work area to prevent unauthorized entry.

2. Erect and maintain barricades, lights, danger signals, and warning signs in accordance with

MUTCD-1988.

3. When pedestrian traffic is detoured onto a roadway, provide temporary walkways with protection as required at ends and overhead.

4. Enclose the entire project site or, if approved by the Contracting Officer, the area of work.

B. BARRIER TAPE

1. Installation where directed by Contracting Officer. Keep a minimum of two rolls on site at all times.

Remove Invasive Species Yorktown Sites

02230

C. REMOVAL

1. Completely remove barriers no longer needed when approved by the Contracting Officer.

END OF SECTION

SECTION 022300

INVASIVE PLANT AND TREE REMOVAL

PART 1 - GENERAL

A. Work includes the herbicide treatment of the cut area after resprouting as described in the summary of work.

1.2 RELATED REQUIREMENTS

1. Archeological protection – Section 013500.

2. Certified Pesticide Applicator License from Virginia. Provide certifications to the Park COR for each individual applicator on the job site

PART 2 - PRODUCTS

A. HERBICIDE

A. Herbicide: The product must include 53.8% Glyphosate IPA in its concentrated form. This will be effective for the list of plants targeted. Please submit the product label for Park COR approval.

B. SPRAY INDICATOR COLORANT

1. Bullseye Blue or approved equal. Please submit the product label for Park COR approval.

C. NON-IONIC ACTIVATOR SURFACTANT

A. Must be mixed to a concentration of 0.5% with the Herbicide before spraying. Please submit the product label for Park COR approval.

PART 3 - EXECUTION

3 .1 PROTECTION OF TREES AND PLANTS TO REMAIN

A. Tree Protection Zone: Area surrounding individual trees or groups of trees to be protected during treatment and defined by the drip line of individual trees.

3 .2 REMOVING PLANT MATERIAL

A. Not Applicable.

3 .3 HERBICIDE TREATMENT

A. Once bamboo and the other targeted invasive plants have leafed out, foliar treat with a 5% solution of specified concentration of glyphosate, mixed with non-ionic surfactant and blue dye with ground sprayer equipment. Apply thoroughly on leaves just to the point of drip. The blue dye should cover the leaves and be detected visually after dried. Aerial spraying will not be approved.

B. Wait 14 days and reapply the glyphosate re apply at a 2-3% solution and admixtures. After the second treatment, leave the bamboo alone. Do not cut, mow, or remove plant material.

3 .3 GRUBBING

A. Not Applicable.

3 .4 DISPOSAL

A. Not Applicable.

END OF SECTION 022300

CONTRACT BID

SCHEDULE

NATIONAL PARK SERVICE INTERNAL USE ONLY

PROJECT: Herbicidal Treatment to Eradicate Invasive Species

PARK: COLONIAL NATIONAL HISTORICAL PARK

ITEM NO. QUANTITY & UNIT

AMOUNT

SECTION ITEM UNIT OF MEASUREMENT PRICE OF

BID

Tobacco Road and Moore House 1 @ L.S. = $______________ Spring and late summer

Cornwallis Cave and Windmill Point 1 @ L.S. = $______________ Spring and late summer

TOTAL = $______________