November Bay Area Part 4; Richmond-San Rafael Bridge/I-580

Given that I was heading to the Marin Headlands from Mount Diablo I didn't think it would be a good idea to try to slog through downtown San Francisco and have to pay two bridge tolls. That being the case after finishing a route clinch of CA 24 I jumped on I-580 and headed to the northern end of San Francisco Bay to cross via the Richmond-San Rafael Bridge.

The Richmond-San Rafael Bridge is a double deck truss bridge spanning 5.5 miles with a maximum clearance of 185 feet. The Richmond-San Rafael Bridge connects Richmond in Contra Costa County and San Rafael in Marin County. Construction on the Richmond-San Rafael Bridge started in 1953 and was completed by 1956. The 1956 and 1957 state highway maps reflect the completion of the Richmond-San Rafael Bridge on the northern end of San Francisco Bay.

1956 State Highway Map

1957 State Highway Map

Prior to 1959 the route leading to the Richmond-San Rafael Bridge was part of unsigned Legislative Route Number 69 between US 101 and US 40. It wasn't until 1959 that California State Route 17 was extended over the Richmond-San Rafael Bridge to meet US 101. The change from an unsigned highway to CA 17 can be seen on the 1958 and 1959 State Highway Map City inserts.

1958 State Highway Map Insert

1959 State Highway Map Insert

By 1984 I-580 had been extended over the Richmond-San Rafael Bridge replacing CA 17. The I-580 designation was one of many of what I consider to be questionable Interstate Designations in the Bay Area which replaced previous state highways with preexisting route continuity.

Currently the toll for crossing the Richmond-San Rafael Bridge is $5 dollars for two axle vehicles. After the tollbooths the official name for the structure the "John F McCarthy Memorial Bridge" can be observed.

The double decker structure of the Richmond-San Rafael Bridge is pretty striking. It appears that the shoulder in theory could be utilized in the future for an additional lane if the need ever arose. The bridge is obviously exempt from Interstate Standards given there is not a shoulder on both sides of the roadway.

There is a decent overlook of the Richmond-San Rafael Bridge in Marin County at San Quentin Point. Interesting to consider that one of the most infamous California State Prisons is literally within walking distance of the overlook.

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US Route 101 in Benbow, Garberville and Redway

The communities of Benbow, Garberville and Redway can all be found along US Route 101 within southern Humboldt County. The former surface alignment of US Route 101 in Garberville and Redway once crossed the Garberville Bluffs along what is now Redwood Drive via a corridor constructed as part of the Redwood Highway during the 1910s. US Route 101 through Benbow, Garberville and Redway was modernized by 1935. US Route 101 would eventually be upgraded to freeway standards in Benbow, Garberville and Redway by extension of the Redwood Freeway during 1966-68. As the cover photo the original grade of US Route 101 and the Redwood Highway can be seen at the Garberville Bluffs during 1934. US Route 101 can be seen in the communities of Benbow, Garberville and Redway on the 1935 Division of Highways Map of Humboldt County . The history of US Route 101 in Benbow, Garberville and Redway Benbow, Garberville and Redway lie on the banks of the South Fork Eel River of southern Humboldt County. D

Patterson Pass Road

Recently on a day trip to the San Francisco Bay Area I traversed the Diablo Range eastbound via Patterson Pass Road. Patterson Pass Road is an approximately 13 mile roadway which starts at Mines Road in Livermore of Alameda County. Patterson Pass Road eastward ascends over the approximately 1,600 foot namesake Patterson Pass into San Joaquin County where it ends at Interstate 580 near Tracy. Patterson Pass Road has an infamous reputation as being a dangerous roadway due to the lengthy one-lane section and heavy rush-hour commute traffic. Patterson Pass is one of the earliest documented European paths of travel over the Diablo Range as it was explored during the 1775-1776 Spanish Expedition led by Juan Bautista de Anza. The 1775-1776 Spanish expedition charted out much of San Francisco Bay which led to the founding of the Presidio of San Francisco and Mission San Francisco de Asis. Patterson Pass Road between Cross Road east to Midway Road is part of the Juan Bautista de Anza

Highways in and around Old Sacramento; US 40, US 99W, CA 16, CA 24, CA 70, CA 99, CA 275, and more

This past weekend I was visiting the City of Sacramento for a wedding. That being the case I decided to head out on a morning run through Old Sacramento, Jibboom Street Bridge, I Street Bridge, Tower Bridge, and path of US Route 40/US Route 99W towards the California State Capitol. My goal was to retrace the paths of the various highways that once traversed the Old Sacramento area. This blog is part of the larger Gribblenation US Route 99 Page. For more information pertaining to the other various segments of US Route 99 and it's three-digit child routes check out the link the below. Gribblenation US Route 99 Page The old highway alignments of Sacramento The City of Sacramento lies at the confluence of the Sacramento River and American River in Sacramento Valley. Sacramento Valley was discovered by Spanish Explorer Gabriel Moraga in 1808. Moraga referred to the fertile Sacramento Valley akin to a "Blessed Sacrament." By 1839 John Sutter Sr. settled in Mexican held