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The Metro Transit System Impacts Group serves as the first point-of-contact at Metro Transit for public or private contractors, including city, state or other government agencies planning construction projects that may impact Metro transit or the Seattle Streetcar service or properties.

The Metro Transit System Impacts Office requires construction notification and offers these guidelines for construction activities that have the potential for impacting Metro transit or the Seattle Streetcar Operations including Trolley or streetcar overhead outage requests, Special Events that would impact Transit, or any event impacting transit routes, bus stops, facilities, or properties.

Guidelines for advanced notice

We require you to email us prior to your event for information about how your project may impact Transit Operations. This allows us to best advise you on your submittal for street use permits and/or special event permits and our requirements. Please refer to Downloads & resources for detailed information.

Event description Minimum advanced notice
Street closures or transit detours to accommodate construction. 10 business days
Short term bus stop moves that impacts our facilities or might require a shelter move. 5 business days
Long term Bus stop moves that impacts our facilities or might require a shelter move. 30 business days
Phase changes and re-starts of existing projects. 10 business days
Deactivation of trolley bus overhead (Saturdays and Sundays only) 15 business days
Deactivation of streetcar overhead or streetcar track ROW access (during non-revenue hours) 15 business days
Trolley or Streetcar wire modification requests (subject to design approval and infrastructure inspection and acceptance) 20 business days
Motorization of electric trolley buses without deactivation of any overhead lines (Saturdays and Sundays only) 5 business days

You will receive written notification after your project is approved.

Deactivation of trolley bus overhead

  1. The contractor submits completed TOH deactivation form to System Impacts via email (
  2. If the contractor is not exempt, King County Accounts Receivable (AR) sends an invoice for the deactivation fee to the contractor.
  3. The contractor submits the cash or check payment in person to King County Finance & Business Operations Division.
  4. Trolley Impacts processes the request and sends the approved form to the contractor.
  5. King County Power & Facilities sends an invoice to the contractor for the deactivation charges.
  1. The contractor notifies the Trolley Impacts of cancellation.
  2. Trolley Impacts notifies Power Distribution and AR of the cancellation. If the notification is made prior to the deadline, AR will issue a 50% refund of the TOH deactivation fee. Cancellations received after the deadline result in forfeiture of the fee.

Two weeks prior to weekend of deactivation

  • Monday 4:00 PM: TOH Deactivation Request form submitted to Trolley Impacts.

The week of the deactivation

  • Monday 10:00 AM: Fee payment submitted to AR.
  • Thursday 4:00 PM: Cancellation of TOH deactivation requests for 50% refund.

Effective April 16, 2012, King County Ordinance 16943 requires prepayment of a $1000.00 fee before trolley overhead (TOH) deactivation requests can be fulfilled. Exceptions: "Some work done in association with SDOT projects is exempt." Check with Trolley Impacts for additional information.

Fee Payment Location
Department of Executive Services
Finance & Business Operations Division
500 4th Avenue, Room 620
Seattle, WA 98104

For concerns related to the fee payment process, please contact Metro Customer Services.

Contact information

Construction Impacts

Call 206-477-1140


Fax: 206-684-2686

Trolley Impacts

Call 206-477-1150


Fax: 206-684-2686

Special Events Impacts

Call 206-477-0433


Fax: 206-684-2686

Comfort Stations Impacts

Call 206-571-6952


Fax: 206-684-2686

Sound Transit Link Light Rail

Call 206-903-7696 for right-of-way and power outage requests. If work affects both rail and buses, System Impacts also needs to be notified.

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