Underground Electrical Service Installation.pdf

Bid Specifications

Underground Electrical Service Installation

Maintenance Building to Park Pavilion

The City of Warren Parks and Recreation Department is seeking sealed bids from qualified and licensed electrical contractors to furnish all labor, materials, equipment, permits, and supervision necessary to install underground electrical service from the existing maintenance building electrical source to the park pavilion.

The proposed underground electrical run is approximately 430 linear feet from the maintenance building to the pavilion.

1. Scope of Work

The contractor shall provide complete turnkey installation of underground electrical service including, but not limited to:

• Installation of underground electrical conduit and wiring from the existing electrical source at the maintenance building to the pavilion.

• Approximate underground route length: 430 linear feet.

• Furnish and install all conduit, conductors, fittings, weatherproof junction boxes, pull boxes, grounding, and related appurtenances.

• Install underground electrical circuits rated up to 20 Amp, 120/240 Volt service.

• Install PVC conduit risers into structures as required.

• Install or replace weatherproof junction boxes as necessary.

• Contractor shall provide all trenching, directional boring, hand digging, backfilling, restoration, and cleanup.

• Contractor shall coordinate utility locates prior to construction.

• Contractor shall protect all existing utilities and infrastructure.

• Contractor shall restore all disturbed lawn, landscaping, irrigation, and site improvements to original condition.

2. Sidewalk Crossing Requirements

The project includes crossing an existing 8-foot-wide concrete sidewalk.

The contractor shall:

• Tunnel or bore beneath the concrete sidewalk whenever feasible to avoid cracking or lifting the slab; or

• Remove and replace affected concrete sections if necessary.

Any removed sidewalk sections shall be replaced to match existing thickness, finish, and grade.

3. Materials and Installation Requirements

All work shall comply with:

• National Electrical Code (NEC)

• 2023 State of Michigan Electrical Code

• Local municipal requirements

Minimum installation requirements include:

• Schedule 40 PVC underground conduit unless otherwise required by code.

• Minimum burial depth per NEC requirements.

• Copper conductors sized appropriately for voltage drop and intended load.

• Weatherproof exterior fittings and junction boxes.

• Proper grounding and bonding.

4. Permits and Inspections

The contractor shall:

• Obtain all required permits prior to construction.

• Coordinate all inspections.

• Include permit costs within the bid amount.

5. Restoration

Contractor shall restore all disturbed areas including:

• Turf and landscaping

• Concrete surfaces

• Soil grading

• Any damaged underground utilities or infrastructure

All restoration shall be completed promptly following installation.

6. Contractor Qualifications

Bidders must:

• Be licensed electrical contractors in the State of Michigan.

• Carry all required insurance including workers compensation and liability insurance.

• Have experience with underground electrical installations.

7. Mandatory Pre-Bid On-Site Walkthrough

A mandatory on-site walkthrough shall be conducted on:

Thursday, June 11, 2026 at 9:00 a.m.

Litch Park

30100 Campbell Drive

Warren, Michigan 48091

Attendance by a representative of the bidding contractor is required in order for a bid to be considered responsive.

8. Bid Submission Requirements

Bids shall include:

• Total lump sum project cost

• Estimated project duration

• Proposed materials and conduit type

• Proof of licensing and insurance

• References for similar completed projects

9. Project Completion

Contractor shall complete all work within the timeframe specified in the bid proposal and coordinate scheduling with the City of Warren Parks and Recreation Department.