California State Route 109

On the south side of San Francisco Bay between US Route 101 and California State Route 84 there are to unsigned short surface routes; CA 109 and CA 114. Both CA 109 and CA 114 are located with the boundaries of Menlo Park and East Palo Alto, this entry is about the former route CA 109.

CA 109 is a 2 mile state highway running on University Avenue between US 101 in East Palo Alto to CA 84 in Menlo Park. Northbound traffic departing US 101 from exit 403 must join Donohoe Street and take a brief western jog to reach CA 109 on University Avenue.

CA 109 north travels through East Palo Alto and enters Menlo Park at Notre Dame Avenue. Notre Dame Avenue north to CA 84 was the first segment of CA 109 that was adopted by Caltrans. Traffic is slow with speed limits as low as 25 MPH in East Palo Alto.

CA 109 on University Avenue crosses a set of rails before terminating at CA 84.

The north terminus of CA 109 is within view of modern Dumbarton Bridge crossing San Francisco Bay. The Dumbarton Bridge is a Twin Concrete Girder design which is 1.63 miles in length. The modern Dumbarton Bridge was opened to traffic in 1984 and was a replacement for the 1927 span which was the first highway crossing of San Francisco Bay.

According to CAhighways the current routing of CA 109 was created in 1984 from CA 84 south on University Avenue to Notre Dame Avenue. In 1988 legislation was passed which allowed CA 109 to be extended south on University Avenue to US 101 but maintenance wasn't picked up apparently until 1997.

CAhighways on CA 109

The first CA 109 was along Sunset Cliffs Boulevard in San Diego. The first CA 109 first appears on the State Highway Map in 1964 and was apparently created out of legislation in 1963 according to CAhighways.org. The original CA 109 was deleted in 1972 and became an extension of I-8.

1964 State Highway Map

Interestingly the second CA 109 appears on the 1986 State Highway Map City Insert as CA 209 running south from CA 84 to Notre Dame Avenue.

1986 State Highway Map City Insert

On the 1988 State Highway Map City Insert CA 109 is shown correctly, I'm not sure if the 1986 map was an error.

1988 State Highway Map City Insert

CA 109 appears as a complete route between CA 84 and US 101 on the 1990 State Highway Map City Insert.

1990 State Highway City Insert

Comments

Bridgeport Covered Bridge

The Bridgeport Covered Bridge is a historic crossing of the South Fork Yuba River located in Nevada County, California near Nevada City. The Bridgeport Covered Bridge opened as a tolled crossing during 1862 as part of the larger Henness Pass Road. The Bridgeport Covered Bridge closed to vehicle traffic during 1972 and was recently restored during 2021. The Bridgeport Covered Bridge is historically California's longest covered span is thought to likely be the longest such structure surviving in the world. Featured as the blog cover is the Bridgeport Covered Bridge during 1950 when it was an active part of Pleasant Valley Road. The history of the Bridgeport Covered Bridge The history of Bridgeport Covered Bridge was featured in the September 1950 California Highways & Public Works . Bridgeport Covered Bridge was constructed during 1862 over the South Fork Yuba River. The Bridgeport Covered Bridge served as part of the Virginia Turnpike Company maintained Henness Pass Roa

Former California State Route 215

California State Route 215 was a short-lived state highway which existed in the Los Angeles Metropolitain area after the 1964 State Highway Renumbering. California State Route 215 was aligned from US Route 60 at 5th Street in Pomona north to US Route 66 near Claremont via Garey Avenue. California State Route 215 came to be after California State Route 71 was bisected in Pomona due to relinquishment of a portion of Garey Avenue due to the opening of a portion of the Corona Freeway (now Chino Valley Freeway) during 1958. California State Route 215 was deleted by the Legislature during 1965. The history of California State Route 215 The initial segment of what was to become California State Route 215 was added to the State Highway System as part of the 1909 First State Highway Bond Act. The First State Highway Bond Act defined what would become Legislative Route Number 19 (LRN 19) as running from Claremont to Riverside. The segment of LRN 19 between Claremont and Pomona would in

US Route 70 over San Augustin Pass

San Augustin Pass is a gap in the Organ Mountains, San Augustin Mountains and San Andres in Dona Ana County east of Las Cruces. San Augustin Pass lies an elevation of approximately 5,600 feet above sea level and was originally traversed by New Mexico State Route 3. US Route 70 would be realigned over San Augustin Pass during 1934 when it was extended to Los Angeles, California. During 1963 US Route 82 would be extended through San Augustin Pass to Las Cruces. Since the early the early 1990s signage of US Route 82 has been withdrawn to Alamogordo. San Augustin Pass and US Route 70 are largely known for the numerous closures due to test firings originating from the White Sands Missile Range. Part 1; the history of highway designations over San Augustin Pass San Augustin Pass traditionally has been the easiest from the Rio Grande in Las Cruces east to the Tularosa Basin. The terrain conditions at San Augustin Pass allowed for an easy crossing in the gap between the Organ Mountains

Gribblenation

Search This Blog