N o-Build Alternative: The No-Build Alternative would maintain existing transit service through the year 2042. No new transportation infrastructure would be built within the project area aside from projects currently under construction or funded for construction and operation by 2042 by Measure R and Measure M. This alternative also includes the highway and transit projects in the current Metro Long Range Transportation Plan and the 2035 SCAG Regional Transportation Plan. Potential modifications to the Metro bus network resulting from the Metro NextGen Bus Study and other transit planning efforts would be included.
SR-60 Alternative (previously known as the SR 60 NSDV Alternative) : This build alternative would extend the existing Metro Gold Line from the Atlantic Station to the City of South El Monte. Primarily, it is an aerial alignment that includes four aerial stations (Garfield, the Shops at Montebello, Santa Anita, and Peck), as described in the Draft EIS/EIR. The SR-60 Alternative alignment would be located primarily along the southern side of SR-60 Freeway right-of-way (ROW), except for a segment that passes near the OII Superfund Site in Monterey Park. To avoid potential impacts to the OII Site, the SR-60 Alternative alignment would transition to the north side of the SR-60 Freeway, approximately west of Greenwood Avenue, continue east within the Caltrans ROW, and then return to the south side of SR-60 Freeway, near Paramount Boulevard, where it would continue for the remainder of the alignment until its terminus in the City of South El Monte.
Washington Boulevard Alternative: This build alternative would extend the Metro Gold Line from the existing Atlantic Station in East Los Angeles to the City of Whittier. This alternative includes six stations (Atlantic/Whittier, the Citadel, Greenwood, Rosemead, Norwalk, and Lambert). From the existing Atlantic Station, the alignment would transition from at-grade west of Woods Avenue to below-grade. The Supplemental/Recirculated Draft EIS/EIR may consider and evaluate a design option that would modify the existing Atlantic Station to a below-grade station. The alignment would continue below-grade roughly following Atlantic Boulevard to Washington Boulevard. The alignment would remain at-grade along Washington Boulevard until just west of Lambert Road. The Supplemental/Recirculated Draft EIS/EIR will consider and evaluate design options for potential aerial configurations along Washington Boulevard.
Combined Alternative: The Combined Alternative involves construction and operation of both the SR-60 and Washington Bl Alternatives and would require infrastructure and operational elements (such as a wye junction) that would otherwise not be required if only one of the alternatives was operated as a “stand alone” line.
Minimal Operable Segments
The project alternatives are not anticipated to be fully constructed in one funding cycle; therefore, Minimum Operable Segments (MOS) will be evaluated to build the project in phases. Any MOS must be able to operate as a stand-alone system and include a maintenance and storage facility
This approach is similar to the phased-construction of most Metro rail projects, including:
- Metro Red Line (built in three segments)
- Metro Expo Line (built in two segments)
- Metro Gold Line Foothill (three of four segments currently under construction)
- Metro Purple Line (two of three segments currently under construction)
For all alternatives, analysis will be completed for:
- Minimum operating segments
Ancillary facilities such as:
- Maintenance and storage facility
- Job training center
- Traction power substations
- Grade separation structures (e.g., bridges)
- Tail and storage tracks
- Track sidings and crossovers
- Track signalization
- Communication facilities
It is anticipated that the Supplemental/ Recirculated Draft EIS/EIR document may also include, but is not limited to:
- Variations to station number and locations
- Options for vertical alignments
- Options for parking facilities;
- Specific alignment refinements
- Ancillary improvements
- Leveraged improvements in collaboration with Metro’s local partners and betterments to address these issues.