COMMISSION AGENDA – Action Item No. 8k Page 3 of 6
Meeting Date: November 14, 2023
Template revised June 27, 2019 (Diversity in Contracting).
The project scope consists of demolishing existing switchboards and structural concrete pads;
decommissioning conduits and wire; and replacing all with new structural infrastructure,
conduits, wires, switchboards, and associated equipment. The switchboards will be upsized from
existing capacity of between 400 and 600 amps to 2000 amps for the smaller switchboards and
from 2500 Amps to 4000 Amps for the main switchboard for future capacity needs (e.g., EV
chargers, shore power). This project will not increase the electrical load at the site at this time.
To maintain the project schedule, the critical path equipment procurement timeline is
paramount. After an evaluation of the three bids, the technical review team has concluded that
the lowest bidder is responsible and responsive.
Scope of Work
The following electrical equipment will be replaced:
1. Switchboard 4SP and 2SPN (service entry to site)
2. Switchboard 4W and 2W (wharf)
3. Switchboard 4P and 2P (NE side of Building A-1)
4. Switchboard EY4 (east side of Building A-1)
5. Switchboard SEY4 (lighting connection for east lot)
6. Switchboards EY4 and SEY4 will be consolidated with 4P and 2P in one location that has
better access. Additionally, this will eliminate a stormwater intrusion point at EY4.
Site work:
1. Provide new conduits and conductors from Seattle City Light to new MIC main distribution
switchgear.
2. Provide new conduits and conductors from new MIC main distribution switchgear to:
a. New electrical switchboard at Mooring Pier
b. New electrical switchboard at Wharf
3. Provide new electrical vaults.
The following equipment will be purchased in advance per this authorization:
1. New main electrical distribution
A. Main switchgear, switchboards including main circuit breakers and feeder circuit
breakers, transformer.
2. New electrical distribution at mooring pier
A. Switchboards including main circuit breaker and feeder circuit breakers,
transformer.
3. New electrical distribution at wharf
A. Switchboards including main circuit breakers and feeder circuit breakers,
transformer.