Fixing dates on San Bernardino Streets

Changed part of Mount Vernon Avenue into a Primary Road.

Corrected a wrong date on Mount Vernon Avenue

Adding the streets of San Bernardino in 1906 as per Sanborn Fire Insurance Map from 1906.

Adding the streets of San Bernardino in 1894 as per Sanborn Fire Insurance Map from 1906.

Adding the streets of San Bernardino in 1894 as per Sanborn Fire Insurance Map from 1894.

Adding the streets of San Bernardino in 1888 as per Sanborn Fire Insurance Map from 1888.

Adding the streets of San Bernardino in 1887 as per Sanborn Fire Insurance Map from 1887.

Added more of Mount Vernon Avenue

Added a railroad track.

Added streets near Colton, created the Mount Vernon Avenue interchange on the San Bernardino Freeway and added a missing entrance ramp on the Riverside Freeway.

Added the Washington Street interchange on the Riverside Freeway.

Added Corona.

Adding the earliest alignment of US 91.

Adding the earliest alignment of US 91.

Adding the earliest alignment of US 91.

Adding the earliest alignment of US 91.

Adding SR 18 from 1934 to 1946.

Adding SR 18 from 1934 to 1946.

Adding SR 18 from 1934 to 1946.