Trolley Renewal Project


Rebuilding the Trolley System

Trolley Renewal is a $660 million project to rebuild the Orange and Blue Line Trolleys. When complete in 2015, new low-floor trolleys will operate on the entire MTS Trolley network, making trips faster, more comfortable and more convenient for all passengers.
Work will include new station platforms, next-arrival electronic signs, shelters, track, switches, overhead electric wire and more. The work will require station closures, temporary station relocations and substitute bus services. To stay in the know, check this page often or use the other options listed in the sidebar.

Stay in the Know


Construction schedules can change with little notice. Stay in the know. There are a number of ways you can stay updated on construction closures, detours, and other updates:

This webpage (bookmark it!)



Telephone hotline:
(619) 557-4533

Text message: Text STATIONS to GOMTS (46687) to receive construction update texts (how to unsubscribe)

Trolley station signage: Look for updated Trolley Renewal info panels at station kiosks, and A-frame signs placed at impacted stations

On board: Look for the latest Trolley Renewal Travel Advisory, available on buses and Trolleys


Weekend Trolley Service Impacts | Station Closures

Ongoing Station Construction |

Construction Advisory: July 25, 2014


View the latest construction advisories on



Additional Materials (click to view PDF)




Construction Timeline


Blue Line Construction Map

Trolley Renewal Fact Sheet




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Station Closures

H Street: Beginning at 7 p.m. on Friday, June 6, through 4 a.m. on Monday, June 9, H Street at the railroad grade crossing will be closed due to track replacement work. The Broadway intersection at H Street will remain open during this time, however through traffic on H Street from the Caltrans ramps to Woodlawn Ave. is prohibited. Motorists exiting I-5 will be directed to use either E, F, or J streets to access Broadway. Please follow signs for detour routes. The same work and closure is scheduled from 7 p.m. on Friday, June 13 through 4 a.m. on Monday, June 16.

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Ongoing Station Construction


Palomar Trolley Station Bus Stops

Due to construction, parking and bus stop locations for Routes 712 and 712L at the Palomar Station have been temporarily relocated.

-The Route 712-L bus stop is now at the north end of the platform

-The Route 712 bus stop is now adjacent to the pedestrian walk-way east of the Trolley station shelter.

-Parking has been eliminated at the south end of the station to accommodate construction.

Please see diagram below for temporary stop locations.



Frequently Asked Questions

How will riders be affected by the Trolley Renewal project?

MTS is working to minimize the impact on riders, but with station and track closures necessary to complete construction, riders will have to adjust their travels. The majority of the closures and need for bus bridges will happen on the weekend. MTS will supply bus bridges when stations are closed, and will notify riders through station announcements, a telephone hotline, station signage, and this website. MTS recommends staying up to date on construction closures.

Why do the Trolley Renewal project now?

The rails and equipment on the Blue Line are 30 years old and have far exceeded their original expected use. MTS is beginning the project now in order to avoid delays and breakdowns in the future. Also, the installation of additional rail crossovers between stations will allow MTS to provide service during temporary delays, ensuring smooth riding in the future.

How is the Trolley Renewal project funded?

The funding sources for this project are TransNet II, California Proposition 1B bonds, and the American Reinvestment and Recovery Act. This money comes to MTS designated for capital improvements to the system and cannot be used for day-to-day operations.

Why do we need low-floor Trolley cars?

Low-floor Trolley cars offer a significant advantage over high-floor vehicles. Since the floor of the low-floor cars is level with the station platform, boarding and exit times are reduced for all riders. The low floor also provides enhanced ADA accessibility and eliminates the need for wheelchair lifts.

The new low-floor vehicles are 81 feet in length, which is nine feet shorter than the 11 S-70 low-floor vehicles that MTS currently uses on the Green Line. The shorter length will enable the new vehicles to be used on C Street in Downtown San Diego without blocking intersections. This will allow the Green Line to come downtown, terminating at 12th and Imperial Transit Center and eliminating the need to transfer at the Old Town Transit Center.

When will we see new low-floor Trolley cars?

The new low-floor vehicles began running on the Green Line on Monday, October 3, 2011! The Green Line is now completely running the new low-floor Trolley cars. Low-floor cars are scheduled to begin operating on the Orange Line in January 2013, and on the Blue Line in 2014. These dates may change due to construction schedules.

How do I unsubscribe from the Trolley STATIONS construction update texts that I am getting from 46687?

Please send the message STOP STATIONS to the number 46687 and you will be unsubscribed from future construction updates.

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