UPDATE: IB/OB 44 cleared at Ingalls & Harbor. Regular service resuming. Expect rolling delays. https://t.co/TX3CA3KZpk (More: 6 in last 24 hours)
K, L, M Memorial Day Weekend Bus Substitution

Twin Peaks Tunnel Closed During Memorial Day Weekend: May 26 - 28

Tuesday, May 22, 2018

This Memorial Day Weekend, crews will be performing important work inside the Twin Peaks Tunnel to prepare for the upcoming extended closure. The tunnel closure provides an opportunity to test out the transit plan for this summer’s two-month closure. The plan aims to keep people moving, even without regular train service on the K, L and M lines.

The work over the weekend will help prepare for the temporary closure of the 100-year old Twin Peaks Tunnel scheduled for late June. While we know construction and bus substitutions are not most people’s idea of fun, we are excited to give the tunnel that connects Castro to West Portal through Forest Hill station a much needed upgrade. Once complete, the Twin Peaks Tunnel will have new rails, improved safety systems and will be seismically upgraded for the future -- trains will be running smoother, safer and more reliably.

Memorial Day Weekend and Summer Closure Transit Plan:

With consultation from transit riders, local merchants and residents, we developed the below transit plan to serve K, L and M customers during the Twin Peaks Tunnel Closures:

  • M Ocean View buses will run instead of trains between Balboa Park and Church Station.
  • L Taraval buses will run instead of trains from between the SF Zoo and Castro Station.
  • K Ingleside trains will travel a shorter route between Sloat/St. Francis and Balboa Park. The trains will then continue as J Church trains to Embarcadero station.
  • Forest Hill Station customers should use L or M buses from temporary stops to access downtown and the Forest Hill (FH) Shuttle to access West Portal.
  • There will be no K Ingleside, L Taraval or M Ocean View trains running underground in Muni Metro, customers should use S Shuttles or T Third trains to access bus substitution transfer points:
    • M Ocean View transfers between bus and train at Church Station.
    • L Taraval transfers between bus and train at Castro Station.
    • K Ingleside use M buses between St Francis Circle and Church Station.

Line-specific rider guide highlighting key transfer points and temporary stops. This guide works for both inbound and outbound trips:

Weekend Bus Substitutions

Map View with Stops:

Weekend Bus Substitutions

Details, details, details:

Tunnel Closure Times:

Saturday, May 26 through Monday, May 28: During Memorial Day weekend, the Twin Peaks Tunnel will be close after regular train service late Friday night and will remain closed until regular service starts early morning on Tuesday, May 29. There will be bus substitutions for K, L and M lines for the whole weekend. West Portal and Forest Hill stations will be closed for the weekend.

K Ingleside trains:

  • Trains will serve regular stops between Sloat/St. Francis and Balboa Park.
  • Customers headed downtown are encouraged to transfer to BART at Balboa Park. Customers can also remain on the K Trains as they will transition into J Trains to Embarcadero.
  • Train Frequency: every 10 minutes during peak, 15+ minutes early morning and evenings.

L Taraval buses:

Buses will serve regular stops between the zoo and Taraval & 17th Avenue.

Temporary bus stops:

  • Taraval & 14th Avenue (transfer stop for 48 bus)
  • Taraval & Wawona (closest stop to West Portal Station)
  • Dewey & Laguna Honda (closest stop to Forest Hill Station)
  • Woodside & Portola (transfer stop for 36, 44, 52 and M buses)

All L buses will end at Castro Station. Customers heading downtown can transfer to T Third or S Shuttle trains at the station.

L buses will not service the following stop locations:

  • 15th Avenue & Taraval- closest stop is 14th Ave & Taraval
  • Ulloa & Forest Side
  • West Portal Station

Bus frequency: every 10 minutes during peak hours, 15+ minutes during early morning and evening

M Ocean View buses:

Buses will serve regular stops between San Jose & Geneva and St Francis Circle

Temporary bus stops:

  • Junipero Serra & Ocean (transfer location to K trains)
  • Portola & Laguna Honda (transfer location for 43 and 48 buses)
  • Woodside & Portola (transfer location for 36, 44 and 52 buses)

All M buses will end at Church Station. Customers heading downtown can transfer to shuttle trains in the station.

M Buses will not service the following stops:

  • Right of Way/Eucalyptus Drive- closest stops at Right of Way/Ocean Ave or 19th Ave/Winston
  • West Portal Station - closest stop at West Portal & Vicente
  • Forest Hill Station
  • Castro Station

Customers headed downtown are encouraged to transfer to BART at Balboa Park

Bus frequency: every 10 minutes during peak hours, 15+ minutes during early morning and evening

Forest Hill Shuttle Bus

The Forest Hill Shuttle Bus will connect between L and M buses and K trains. It will also be a key way to travel between the Forest Hill Station area and the West Portal corridor.

The shuttle will stop at the following locations:

  • Forest Hill Station
  • Dewey & Laguna Honda
  • West Portal & Vicente
  • West Portal & 14th Ave
  • Sloat/St. Francis

Bus frequency: every 15 minutes.

OWL Service

L OWL and 91 OWL buses will be rerouted via 14th Ave and Vicente. Transfer between 91 and L buses at West Portal Ave & Vicente.

Reroutes

The following lines will have reroutes: 35, 48, 57, 91 Owl, L Owl. Signage will be posted at affected stops.

Additional project information: https://www.sfmta.com/TwinPeak

For a project overview, be sure to watch our informative video: