# Metrolink Awards $51.5M Rail Siding Contract

The Southern California Regional Rail Authority (Metrolink) awarded Granite Construction a **$51.5 million** contract to extend the Marengo and Rancho Cucamonga sidings on the San Bernardino Line. Construction is scheduled to begin in January 2027 and finish in July 2028, later than Metrolink’s earlier target of early 2028. The award is complete, and no open solicitation is identified; the construction work may nevertheless create subcontracting and supply-chain opportunities.

- The bundled scope includes siding extensions, signal and control-point work, culvert extensions, and grade-crossing upgrades.
- Rail construction subcontractors and suppliers can assess whether their capabilities align with the awarded scope and pursue potential opportunities through Granite Construction.
- The revised completion schedule gives contractors and suppliers a July 2028 project horizon for planning resources and deliveries; the source does not specify subcontracting terms or procurement deadlines.

**Jurisdictions:** sled
**Industries:** Transportation, Construction & Infrastructure
**Topics:** Physical Infrastructure
**Published:** November 09, 2026

### Government Entities
- Southern California Regional Rail Authority (Metrolink) (SCRRA)

### Vendors
- Granite Construction (awardee)

### Sources
- [$51.5 million Metrolink siding contract aims for July 2028](https://www.railway.supply/metrolink-siding-contract-targets-july-2028-the-month-la28-opens) - Railway Supply