Atch 6_ROW Vegetation Clearance_Work Request 2_20250902.pdf

DKGV 1132949 Maintain Electrical Right of Ways (MH; 9 June 2025)

Work Request #2 – Revision 1 Statement of Work

DKGV 1132949 Maintain Electrical Rights of Way

Joint Base Charleston Weapons Station

14 August 2025

MISSION IMPACT: Trim, remove, and dispose of trees and vegetation along the electrical utility right-of-way in selected area to maintain a minimum 20-foot horizontal clearance on each side of all overhead power lines. This work is required to ensure safe operation and maintenance access, mitigate fire risk, and comply with local state and Federal clearance regulations.

MISSION PARTNERS: 628 Civil Engineer Squadron

A. GENERAL: This Work Request will include Site #1, Site #2 and Site #3. The work to be performed by this work request consists of furnishing all tools, qualified labor, materials, equipment, supplies, and supervision necessary to trim, remove, and dispose of trees and vegetation along the electrical utility right-of-way in selected area to maintain a minimum 20-foot horizontal clearance on each side of all overhead power lines. All work shall be accomplished in accordance with all Federal, State, Local Regulations and the guidelines & requirements as outlined in the base contract to include but not limited to the following:

1. International Building Code

2. International Mechanical Code

3. International Plumbing Code

4. National Electrical Code (NFPA 70)

5. National Fire Code (NFPA 1)

6. Base Architectural Compatibility Guide

7. Unified Federal Criteria (UFC)

8. Unified Facilities Guide Specifications (UFGS)

9. OSHA 1910.269, ANSI Z133

B. LOCATION: Various selected areas, Joint Base Charleston, Weapons Station, SC.

C. SCOPE OF WORK: The project requirements include but are not limited to the following major items of work:

Vegetation encroachment within the electrical distribution rights-of-way currently poses significant risk to system reliability, general safety, and wildfire mitigation. Regular clearing of the rights-of-way around JBC is necessary to maintain proper clearance around power lines in accordance with all applicable local, State, and Federal standards.

1. Contractor shall conduct a site survey to confirm measurements and boundaries prior to construction.

2. Contractor shall provide all labor, materials, and equipment required to clear small trees and all vegetation along the designated electrical utility rights-of-way corridors. This work shall establish a minimum horizontal clearance of 20 feet on each side of all overhead power lines and provide safe, unobstructed access to larger limbs and trees.

Avoid damage to existing structures, utility poles, or equipment. Any damage caused to Government property shall be fixed by DCC at no cost to the Government

3. Contractor shall manually trim limbs near overhead power lines using a pole saw and/or chainsaw, taking all necessary precautions to avoid contact with the power lines. The Government Project Manager and 628 CE Electrical Shop will assist onsite to confirm all large trees designated for removal.

4. Contractor shall remove all large trees located within the minimum 20-foot horizontal clearance on each side of the overhead power lines (using the center of the power pole as the point of reference) using a track excavator, or equivalent equipment. Felled trees shall be dragged to a centralized staging area for loading and transported to a government-designated laydown area. Contractor may utilize composite mats to protect asphalt, concrete driveways, and walkways. Timber mats may also be used as necessary to minimize ground disturbance in designated wooded areas.

5. Contractor shall mulch all limbs, trees, and stumps at the government-designated laydown area. Mulch shall be evenly spread across ensuring a flat distribution with no remaining piles.

6. Contractor shall perform final grading and cleanup of all disturbed areas within the right-of-way and laydown areas, ensuring a smooth, uniform finish suitable for ongoing maintenance and access.

7. Contractor shall submit a Right-of-Way Clearing Plan and Environmental Protection Plan for approval for each right-of-way to be cleared

8. CE is aware that the current status of the rights-of-way makes performing this work a safety concern as the rights-of-way have not been maintained properly. This has resulted in encroachment of overgrowth at/around the poles as well as tree branches actively resting on the electrical transmission lines. These hazards present a condition where the lines may need to be de-energized to perform this work. CE PM will coordinate with 628 CE Electrical Shop to de-energize any transmission lines deemed too dangerous to work while energized.

9. Contractor shall utilize appropriate flaggers and barricades in work zones near roads or public access areas.

10. Any lay down areas designated shall be returned to existing conditions prior to de-mobilizing from site

11. Contractor responsible for all measurements for proposal purposes, quantities listed in this SOW are approximate.

SITE #1, Wilkinson – NMC & NIWC:

1. Wilkinson – NMC - This right-of-way is approximately 4,250 linear feet and includes a feeder power line that begins at the base of the Grace Hopper bridge. This right-of-way extends into the NMC area of the NWS. CE PM to coordinate access to NMC area of JBC.

2. NIWC – This right-of-way is approximately 1,200 linear feet and extends from 3rd Street to 8th Street behind the NIWC Headquarters

SITE #2: Red Bank Curve – Vehicle Maintenance & Missile Haul Road:

NOTE: All mobilizations, de-mobilizations, and rental equipment shall be bid by way of estimated quantities

1. Red Bank Curve – LRS – This right-of-way is approximately 1,600 linear feet.

2. Missile Haul Road – This right-of-way is approximately 8,500 linear feet. This area is located in the NMC area of the NWS. **Note - significant portions of the identified area will require no maintenance, as seen on the site visit.

SITE #3: Pomphlant Access Road:

NOTE: All mobilizations, demobilizations, and rental equipment shall be bid by way of estimated quantities

1. Pomphlant Access Road – This right-of-way is located past post 7 on Pomphlant Access Road and is approximately

6,700 linear feet. **Note - significant portions (Foster Creek Bridge to Poseidon Park) of the identified area will require no maintenance, as seen on the site visit.

GENERAL SITE REQUIREMENTS:

1. Caution must be taken to ensure all safety practices are adhered to while construction work requirements are performed.

2. All work to be performed during normal working hours (0630-1700), Monday-Friday.

3. Caution must be taken in all work areas of the facility to avoid physical or cosmetic damage to existing government property. Any damage to government property resulting from construction procedures shall be the responsibility of the contractor.

D. ENVIRONMENTAL: Refer to the Environmental Management Systems Section (40), Environmental Specification Section (6.4) and Environmental Permits Section (24.8) of the base contract. The Contractor shall comply with all applicable requirement stated in the Toxic Substances Control Act of 1976. All materials used in the performance of this contract shall be applied in strict accordance with manufacturer’s printed label instructions and all applicable standards. The use of Class I ozone depleting substances, asbestos containing materials, and lead paints are strictly prohibited. Contact the 628 Civil Engineer Squadron Environmental Office at (843)-963-1473 for any asbestos or lead paint related questions.

E. WASTE DISPOSAL/RECYCLING: Refer to the Environmental Specification Section (6.4), and the Hazardous Materials Section (45) of the base contract. The contractor shall recycle all recyclable materials as a result of demolition. All waste materials generated by all work under this contract shall be handled, transported, stored and disposed of off base at no additional cost to the government, by the contractor and or sub-contractors, at any time in accordance with all applicable federal, state or local laws, ordinances, regulations.

F. SUBMITTALS: Refer to the Submittals, RFI’s & RFV’s Section (23) of the base contract. Minimum submittal requirements for this delivery order:

1. Progress/Construction Schedule AF Form 3064

2. AF Form 66

3. Activity Hazard Analysis(s)

4. Right-of-Way Clearing Plan

5. Environmental Protection Plan

6. Closeout Documents

G. SAFETY: Refer to the Health and Safety Section (8) of the base contract and UFGS 01-35-26. The Contractor shall comply with all OSHA safety regulations, the latest edition of EM-385-1 and 29 CFR 1910, if discrepancies occur the more stringent requirements shall govern. All applicable submittals for various Definable Features of Work (DFOW’s) required by EM-385-1 shall be submitted prior to commencing work.

H. PERMITS & OUTAGES: Refer to the Permits and Outages Section (24) of the base contract.

I. CLOSEOUT DOCUMENTS: Refer to UFGS 01 78 00 and the requirements of the base contract sections listed below:

Warranty (28.3) Contractor’s As-Built/Record Drawings (29): As-Builts not required for this project Real Property Records (28.1): DD Form 1354 not required for this project Operation & Maintenance (O&M) Manuals/Data (28.2)

End of Statement of Work