A04-SOW_-_EDIS_Staff_Lot_Gate_and_Fence.pdf

NHS

Repair Thomas Edison National Historical Park Staff Lot Gate and Fence Project: Fence & Slide Gate Repair – Staff Parking Lot Site: Thomas Edison National Historical Park (Staff Lot), West Orange, NJ 07052 Requestor: Timothy D. Stauffer, Chief of Maintenance Date: 2/20/2026 Work Hours: 7:00 AM to 3:30 PM Monday to Friday Coordination: Coordinate with Park Facilities & Security for access and staging.

1) Project Overview & Objectives

Repair and replace damaged perimeter fencing and sliding gate to restore secure access and maintain aesthetics consistent with the existing installation. New materials will match existing as closely as possible; original supplier is unknown.

2) Work Location & Constraints

• Location: Staff Lot perimeter line

• Access & Staging: Contractor to stage equipment/materials in designated area in staff lot without restricting emergency egress.

• Traffic Control: Maintain staff lot access; provide cones, barricades, and signage as needed.

• Protection: Protect adjacent pavements, curbs, utilities, and existing fencing/gates not in scope.

• Security: Maintain secure boundaries during construction; provide temporary barrier if fence line is opened overnight.

3) Detailed Scope of Work

A. Demolition & Disposal

1. Remove and dispose of three (3) fence sections, associated posts, and existing slide gate assembly.

2. Saw-cut and remove existing post footings as needed to install new posts and achieve clean finish.

3. Properly dispose of all debris off-site at a licensed facility; provide weight tickets upon request.

4. Protect existing 4" square gate posts (to remain for new gate) unless found unsuitable (see Allowance & Options).

B. New Fence – Supply & Install

1. Sections: Provide and install three (3) sections of 7'-0" high industrial ornamental fence.

2. Pickets: 1" square steel pickets (industrial grade) with three horizontal rails.

3. Posts: 2-1/2" square steel posts (wall thickness adequate for 7' height; minimum 11 ga).

4. Finish: Powder coat, BLACK (match existing sheen—gloss/semi-gloss/satin) per submittal.

5. Foundations: Set posts plumb in cast-in-place concrete footings

6. Fasteners: Use stainless steel (304 or better) or hot-dip galvanized hardware to prevent corrosion.

7. Alignment: Match fence line grade transitions and spacing to existing panels.

C. New Slide Gate – Supply & Install

1. Gate Panel: Provide and install one (1) 7'-0" high x 20'-0" opening industrial ornamental aluminum slide gate.

2. Construction: Three rails with 1" aluminum pickets, vertical, evenly spaced; bottom rail reinforced to resist deflection.

3. Track & Trolleys: Aluminum EZ Slide top gate track with internal trolleys; bottom roller guides with heavy-duty rollers.

4. Posts: Mount on existing 4" square posts, verify alignment and structural suitability prior to install (see Section 5 for post assessment).

5. Finish: Powder coat, BLACK to match fence color/sheen.

6. Stops & Keepers: Provide positive gate stops, keeper(s), and manual latch compatible with Park operations.

7. Operation: Manual sliding operation. (No powered operator included unless added as an alternate.)

8. Clearances: Maintain required ground clearance for snow/ice and ADA pedestrian safety (no protrusions).

9. Safety: No sharp edges; picket spacing to prevent climb-through.

4) Matching Existing

• Aesthetic Match: Profiles, picket spacing, post cap style, rail alignment, and finish to match existing as closely as possible.

• Supplier Unknown: Contractor to propose product lines that visually and functionally match the existing; approval via submittals.

5) Verification & Allowances

• Existing Gate Posts: Contractor to inspect and verify the structural condition, plumbness, and footing integrity of the existing 4" square posts.

o If posts are unsuitable (corroded, loose, undersized footing), provide a written report and cost to replace like-for-like with new posts and foundations.

• Field Measurements: Contractor to field-verify exact lengths of three fence sections and confirm the 20' clear opening.

6) Materials & Standards

• Steel Fence: Industrial ornamental steel; pickets square; rails sized to accommodate picket load and span; fully welded or high-strength mechanical assembly per manufacturer.

• Aluminum Gate: Industrial grade extrusions; reinforced rails at top and bottom; internal trolley system compatible with EZ Slide track.

• Coatings: Exterior-grade powder coat; UV-stable, corrosion resistant; pre-treatment per manufacturer best practices.

• Concrete: 4,000 psi, air-entrained; post holes cleaned of loose soil; concrete vibrated/rodded; crowned tops for drainage.

• Hardware: Stainless or hot-dip galvanized; tamper-resistant where feasible.

7) Installation Requirements

• Posts set plumb and square; verify set before concrete cure.

• Rail heights and picket spacing consistent across sections.

• Gate travel smooth, free of binding; adjust trolleys and guides for true alignment.

• All cut ends treated per manufacturer to prevent corrosion.

• Final clean-up: touch-up coating (per manufacturer) where needed; site restored to pre-construction condition.

8) Safety & Environmental

• Comply with OSHA and NPS site safety requirements.

• Debris and packaging removed daily; no onsite disposal.

9) Warranty

• Workmanship: Minimum 1-year from Substantial Completion.

• Finish: Manufacturer powder coat warranty

• Gate Hardware: Manufacturer standard warranty.

10) Approvals

• Field Acceptance: Final inspection and sign-off by Park Maintenance.

11) Period of performance – 90 days