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County Route Shield

Monterey/Santa Cruz
County Sign Route G12

[Click here for a key to the symbols used. Some county routes were constructed with federal funds. These routes are indicated as FAP (Federal Aid Primary), FAU (Federal Aid Urban), or FAS (Federal Aid Secondary). If no funding source is shown, no federal funds were used. Note that while some segments seem to have the same attributes, they may differ in the county-local road number assigned to the segment, or in the Caltrans Map Sheet number.]

Routing Routing

  1. Cty Rte G12San Miguel Canyon Road from US 101 to Hall Road (FAS, 4.65 mi) [Monterey County]

  2. Hall Road from San Miguel Canyon Road to Elkhorn Road (FAS, 2.85 mi) [Monterey County]

  3. Elkhorn Road from Hall Road to Salinas Road (FAS, 1.12 mi) [Monterey County]

  4. Salinas Road from Elkhorn Road to the Watsonville urban limits (FAS, 0.95 mi) [Monterey County]

  5. Salinas Road from the Watsonville urban limits to Porter Drive Road (FAU, 0.55 mi) [Monterey County]

  6. Porter Road from Salinas Road to the Santa Cruz county line (FAU, 0.22 mi)

  7. Main Street in Watsonville from the Monterey county line to Route 129 (FAU, 0.20) [Santa Cruz County]

History and Signage Information History and Signage Information

This route was defined in 1965.

Status Status

In December 2017, the Monterey County RTIP noted for this route the following proposal: Monterey County G12 Operational and Capacity Improvements: This County project will widen San Miguel Canyon Road to four lanes between Castroville Boulevard and Hall Road, and Hall Road between San Miguel Canyon Road and Elkhorn Road. Class II bike lanes will be installed and maintained throughout widened segment. Traffic signal and intersection improvements will be constructed on San Miguel Canyon Road at Castroville Boulevard. Intersection improvements will be constructed onHall Road at Sill Road andWillow Road. Intersection improvements will also be constructed on San Miguel Canyon Road at Moro Road and Langley Canyon Road.
(Source: TAMC RTIP 12/2017)

Total mileage: 10.54 mi.

Acronyms and Explanations:

Back Arrow CR G11 Forward Arrow CR G13

© 1996-2020 Daniel P. Faigin.
Maintained by: Daniel P. Faigin <>.