Foothill Gold Line E-News Update – September 2021 Project and Community Updates

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September 24, 2021

UPDATES: Grade Crossing Updates; Bonita Ave./Cataract Ave. Intersection and Bridge Work; Other Bridge Work Underway in Glendora and Pomona; Second Rail Delivery; Ongoing Freight Track Relocation; Project Update Video

Loraine Ave. Grade Crossing in Glendora Reopens; Vermont Ave. to Reopen Later Today


Photo: Loraine Ave. grade crossing in Glendora reopened

Earlier this month, the Loraine Ave. crossing in Glendora reopened to motorists and pedestrians after undergoing reconstruction for four months. Crews completed extensive underground utility work; rebuilt the roadway, curbs, gutters, sidewalks and medians; installed two new light rail tracks; completed work on the relocated freight track; and installed a host of safety improvements.


Photo: Crews completing relocated freight track at Vermont Ave. grade crossing in Glendora

Crews have also completed similar work at the Vermont Ave. crossing in Glendora, and are currently getting the street ready to reopen later today.

NOTE: While Vermont Ave. will reopen soon to northbound/southbound traffic, West Ada Ave. north of the crossing (at Vermont Ave.) will remain closed for three more weeks to allow crews to complete utility and street work. Click here for the construction notice. As a reminder, West Ada Ave. south of the crossing is permanently closed.

When Vermont Ave. reopens, it will mark 12 of the 21 at-grade crossings that have undergone reconstruction and reopened to the public. More than half of the grade crossing work is now complete.

Three Grade Crossings Currently Under Construction


Photo: Pasadena Ave. grade crossing in Glendora

With Vermont Ave.'s reopening today, there are now three grade crossings underway with reconstruction: Pasadena Ave. in Glendora; Walnut Ave. in San Dimas; and D St. in La Verne.

At all of these crossings, crews continue to make progress relocating and protecting underground water, sewer, gas, communications and power lines; and will then move on to installing new tracks and safety equipment, and rebuilding the roadway, curbs, gutters, sidewalks and medians.


Photos: (Top) Crews installing conduit to house the communication and power lines for the light rail system at the Walnut Ave. grade crossing in San Dimas; (Bottom) D St. grade crossing in La Verne

Upcoming Second Closure of Elwood Ave. Grade Crossing; Others to Follow

On September 27, crews will return to the Elwood Ave. crossing in Glendora for a three-week closure to complete underground utility and street work. For more information on this second closure, click here.

Throughout the next year, crews will also revisit several other grade crossings that have already undergone major reconstruction and reopened, but still have remaining activities that require a second short street closure.

Of the 21 at-grade crossings on the project, only the following five will require short second closures:

  • Elwood Ave. in Glendora (begins Sept. 27)
  • Walnut Ave. in San Dimas
  • Wheeler Ave. and E St. in La Verne
  • Fulton Rd. in La Verne/Pomona

At all of these grade crossings (except for Elwood Ave.), second closures are necessary to finish the freight track relocation. A temporary freight track was installed during the initial work at these locations to allow freight service to be maintained without interruption as crews completed other activities. When ready, crews will return to each crossing to remove the temporary freight track, realign the freight onto the new relocated track, install the second light rail track and complete the remaining safety improvements. Notices will be distributed ahead of each of these future closures.

Phase 3 Begins for Bonita Ave./Cataract Ave. Intersection Reconstruction – Cataract Ave. Closed North/South of Bonita Ave. for Nine Months; Work on the New Light Rail Bridge Starting (San Dimas)


Photos: (Top) Crews relocating the freight track at the Bonita Ave./Cataract Ave. intersection in San Dimas; (Bottom) Cataract Ave. fully closed north and south of Bonita Ave. as part of Phase 3

Last week, crews closed the intersection of Bonita Ave./Cataract Ave. in San Dimas for five days to complete underground utility work and relocate the freight track to make room for the light rail bridge work to begin in earnest. Following the one-week closure, crews were able to move into Phase 3 of the four-phased plan to reconfigure the intersection and keep Bonita Ave. open to traffic for as much time as possible (a two-month closure of Bonita Ave. is needed, and is expected to take place next Summer).

Phase 3, which started this week, requires a nine-month closure of Cataract Ave. north and south of Bonita Ave. to allow crews to continue work on the light rail bridge foundations and start work on other aspects of the structure. Access from eastbound Bonita Ave. to southbound Cataract Ave. will remain open and available. For more information on this long-term closure, click here.

Both the intersection reconfiguration and the new light rail bridge are required by the California Public Utilities Commission (CPUC) for safety. You can also read a fact sheet that provides an overview of the intersection improvements and future light rail bridge (click here).

Bridge Work in Glendora and Pomona


Photos: Crews installing concrete girders for the new light rail bridge over San Dimas Wash in Glendora

In Glendora, crews have been underway with bridge work at San Dimas Wash, Route 66 and Foothill Blvd./Grand Ave. intersection.

At the San Dimas Wash, crews recently installed four concrete girders for the new light rail bridge. This new bridge will carry eastbound and westbound trains over the channel in the future. The adjacent relocated freight bridge was already completed and is ready for use by freight trains.


Photos: Crews constructing foundations for the new light rail bridge over Route 66 in Glendora

Alongside the existing freight bridge over Route 66 in Glendora (which will remain intact), crews have begun building the foundations for the new light rail bridge. In late November, a ten-day full closure of Route 66 at the bridge will take place to allow crews to complete work on the bridge foundations. More information will be available for that closure soon.

For more information on the future light rail bridge over Route 66, click here.


Photo: Crews constructing the walls for the western approach of the future light rail bridge over the Foothill Blvd./Grand Ave. intersection in Glendora

At the intersection of Foothill Blvd./Grand Ave. in Glendora, crews continue to make progress building the retaining walls of the western approach for the future light rail bridge. As seen in the photo above, the walls for the approach will consist of custom form panels that feature the project's citrus design. The walls will measure nearly 1,250 feet in length.

To understand what the future light rail bridge over Foothill Blvd./Grand Ave. will look like, click here to see 3D simulations.


Photo: Crews constructing the foundations for a freight-only bridge over Little Dalton Wash in Glendora

On the southeast corner of the Foothill Blvd./Grand Ave. intersection, crews continue to make progress constructing the foundation for a freight-only bridge over the Little Dalton Wash, as seen in the photo above. This will exist alongside the Foothill Blvd./Grand Ave. light rail bridge.


Photo: Crews building the deck for the new light rail bridge over Thompson Creek in Pomona

Finally, in Pomona, crews have made significant progress on the new light rail bridge that will carry eastbound trains over the Thompson Creek channel. As seen in the photo above, crews are constructing the foundations and bridge deck.

This bridge will be an extension of the existing channel structure that currently carries a temporary freight track. In the future, crews will remove the temporary freight track and install the westbound light rail track in its place. At that time, the freight track will be relocated onto a separate structure to the north that was recently completed.

Second Rail Delivery a Success


Photo: Rail delivery train in Glendora

In late August, a 2,000-foot-long rail delivery train, carrying 50 rail sticks, made its way through Glendora, San Dimas and La Verne to offload rail at various locations. The rail sticks, each measuring 1,600 feet long and weighing over 61,000 pounds, will be used to build out the light rail tracks and complete the relocated freight track.

Project-wide, nearly 266,000 feet of rail will be installed. This was the second of three rail deliveries for the project. A third and final rail delivery is anticipated by the end of this year.


Photo: Crews offloading rail sticks in Glendora

Freight Track Relocation in La Verne


Photo: Crews installing the relocated freight track in La Verne

With the successful relocation of the freight track throughout the city of Glendora, crews are now focused on relocating the remainder of the freight track in San Dimas, La Verne and Pomona. Recently, as seen in the photo above, crews have been installing the relocated freight track through La Verne.

Overall, the freight track relocation work is halfway complete, and is anticipated to be ongoing through the end of the year. Light rail construction is anticipated to start next month in Glendora.

To see more of these and other activities that took place this past month, click here or below to watch the September 2021 project highlight video.


Tree Removal and Replacement Along the Foothill Gold Line


Throughout the corridor, trees and overgrown vegetation were found at the beginning of the project that needed to be cleared before major construction could start. Each tree was surveyed and recorded and will be replaced in the future as part of the Construction Authority’s program.

We were recently contacted by a community stakeholder to say that it would be helpful for the community to understand the Construction Authority’s plan for tree replacement, following the clearing of the corridor by KPJV crews that removed all trees that were deemed to be a hazard to the future rail operations. Thank you to that interested person for the suggestion! Below is an overview of the agency’s policy and program. We welcome other suggestions. If you have something you want to know more about, please let us know.

Here is an overview of the agency’s tree removal and replacement program:

As part of the Construction Authority’s commitment to environmental sustainability, the agency has an adopted Tree Replacement Policy. The goal of the policy is to save as many trees as possible, but where that is not possible: for every tree that is required to be removed as part of the project’s construction, a minimum of two trees will replace it. And for California Live Oaks, which are protected species, each will be replaced with a replacement ratio equal to or greater than local city ordinances.

It all starts with a survey of the corridor:

Surveying Trees for Removal and Replacement

As part of their initial work tasks, KPJV was required to take a survey of all trees along the 9.1-mile project corridor from Glendora to Pomona and identify any trees that would likely need to be removed (and those at risk of potentially needing removal), because they would be hazardous to the future rail operations by meeting one of the following criteria:

  • Interferes with the construction of the alignment/tracks/other project element
  • Interferes with the overhead catenary power system
  • Interferes with stations and bridge structures
  • Conflicts with Local, State and Federal safety codes
  • Trees/shrubs are within 20 feet of the track

The survey included the tree’s location, caliper (diameter of the tree trunk, measured 6” above the ground line) and type. Once the survey was completed, the team looked to save as many of the trees as possible. For those that needed to be removed, a replacement plan will be developed later in the project based on the Construction Authority’s Tree Replacement Policy, as follows:

Canopy Trees

  • 4” to 8” caliper - replaced with 24” box tree at 2 to 1 replacement ratio
  • 8” to 18” caliper - replaced with 48” box tree at 2 to 1 replacement ratio
  • 18”+ caliper - replaced with 48” box tree at 4 to 1 replacement ratio

Trees/Shrubs That Provided Visual Screen

  • 3” to 18” caliper - replaced with 15 gallon shrub at 6 to 1 replacement ratio
  • 18”+ caliper - replaced with 15 gallon shrub at 10 to 1 replacement ratio

The replacement trees will be planted at various sites still to be determined throughout the project corridor, and may include station areas, station parking facilities, perimeter of traction power substations and city streetscapes within project area limits. The Construction Authority will also provide trees (per the replacement criteria above) or financial assistance to each city to replace trees that were removed from the corridor within city limits

Along Arrow Highway, the need to remove the Deodar Cedars was identified as part of the 2013 Final Environmental Impact Report. Each was surveyed and will be part of the replacement program. In addition, the Construction Authority has identified a portion of the corridor through La Verne that can be used for revegetation once the mainline construction is complete and will be working with the city of La Verne on the revegetation plan for Arrow Highway in the future.

Thank you for your continued interest in the Foothill Gold Line. We appreciate your patience as we build this important regional project.

Lisa Levy Buch, Chief Communications and Strategic Development Officer and the Public Affairs Team

E-News Content

UPDATES: Grade Crossing Updates; Bonita Ave./Cataract Ave. Intersection and Bridge Work; Other Bridge Work Underway in Glendora and Pomona; Second Rail Delivery; Ongoing Freight Track Relocation; Project Update Video

Tree Removal and Replacement Along the Foothill Gold Line


Access Project information 24/7 at

For Construction-Related Questions:
(626) 513-5788

For General Project Questions:
(626) 471-9050




Foothill Gold Line Construction Authority Headquarters
406 E. Huntington Drive
Suite 202
Monrovia, CA 91016

Phone: (626) 471-9050

Office Hours: Mon - Thurs, 8 AM - 4 PM


Construction Public Information Office
2100 E. Route 66
Suite 200
Glendora, CA 91740

Office Hours: Mon - Fri, 8 AM - 4 PM





Project funding in Los Angeles County is mostly from Measure M; with additional funding from Measure R and the State of California Transit and Intercity Rail Capital Program (including funds from SB1).

San Bernardino County funds will be used to extend the line from Claremont to Montclair (with TIRCP and SB1 funds).





Metro Customer Service can be reached at 1-323-466-3876 (1-323-Go Metro)