Skip to main content

November Bay Trip Part 1; Interstate 205

This previous week I decided it was time to get out of town to explore more of the San Francisco Bay area.  After some early morning fog along California State Route 99 I made my way west on CA 120 and I-5 to the first highlight of the trip; Interstate 205.






Interstate 205 is a mostly unremarkable 13 mile highway running from I-5 in San Joaquin County west to I-580 in Alameda County.  I-205 starts in San Joaquin Valley at I-5 and climbs into the Diablo Range at I-580.





The only city of significance on I-205 is Tracy.





The only significant junctions on I-205 are with it's business loop and County Route J4 at Grant Line Road.  For some reason J4 was signed as J5 from I-205 in error.





Near the western terminus I-205 enters Alameda County and crosses the California Aqueduct.






I-205 terminates at I-580 in the Diablo Foothills.  Neither Interstate has any reassurance shields which I found odd.


On the surface there isn't too much to I-205 but there is a hell of backstory with the alignment history.  The original alignment that became I-205 first ran on what is now the I-205 Business Loop on 11th Street which was part of the first US 48.  US 48 was one of the original US Routes and ran through Tracy until 1935 when it was replaced by an extended US 50.  The shift can be seen on the 1934 and 1936 California State Highway Maps.

1934 State Highway Map 

1936 State Highway Map

US 48 was always an oddity given it was a short intrastate US Route.  The route carried an important corridor but in my opinion was much better served by US 50.  USends covers the history of US 48 on their website.

USends on US 48

I-205 was completed by 1970 and US 50 was shifted off of 11th street to multiplex it.  US 50 was cut back to Sacramento by 1972 which left the I-205 designation alone.  I-205 can be seen appearing between the 1969 and 1970 state highway maps while USends has a good piece on US 50.

1969 State Highway Map

1970 State Highway Map

USends on US 50


Comments

Popular posts from this blog

Old California State Route 140 and California State Route 120 entrances to Yosemite National Park

This past October I sought out the original Yosemite National Park entrance alignments of California State Route 140 and California State Route 120.


Presently CA 120 enters Yosemite National Park in Tuolumne County via the modern Big Oak Flat Road.  Originally CA 120 entered Yosemite National Park via the Old Tioga Pass Road and CA 140 a entered via the Old Big Oak Flat Road.  Previously the history of the Big Oak Flat Road and Tioga Pass Road were discussed on Gribblenation.  Articles pertaining to the Big Oak Flat Road and Tioga Pass Road within the boundary of Yosemite National Park can be found below.

History of the Big Oak Flat Road (Yosemite National Park) 

The Tioga Pass Road


Part 1; early highways into Yosemite and Legislative Route 40

The Big Oak Flat Road is the second oldest highway into Yosemite just behind the Old Coulterville Road  Much of the alignment of CA 120 is presently incorporated by the path set out by the Big Oak Flat Road.  The history of the Big Oak Flat Road …

Box Canyon Road (former US 60, US 70 and the second California State Route 195)

This past month while visiting Riverside County I drove Box Canyon Road from Interstate 10 near Chiriaco Summit southwest to Mecca in Coachella Valley.  Box Canyon Road is mostly known for being the original alignment of US 60/70 when they were expanded into California.


Box Canyon Road is an approximately 15.8 mile road between I-10/Cottonwood Springs Road near Chiriaco Summit which travels southwest through the Mecca Hills to Coachella Valley where it becomes 66th Avenue. 


Box Canyon Road follows a naturally cut wash through the terrain of the Mecca Hills.  The path of Box Canyon Road has been a known route of travel from Coachella Valley to the Colorado River and eastern Sonoran Desert for centuries.  During the California Gold Rush a wagon route known as the Bradshaw Trail was plotted through the Sonoran Desert by William D. Bradshaw.  The Bradshaw Trail was plotted in 1862 through the Sonoran Desert east over the Colorado River to a new mining strike found in La Paz, Arizona.  B…

US Route 101 from Cannon Beach, Oregon over the Columbia River via the Astoria-Megler Bridge

This past September I drove a segment of US Route 101 from Cannon Beach, Oregon northward over the Columbia River into Washington State via the Astoria-Megler Bridge.


US 101 from Cannon Beach, Oregon northward to Megler, Washington is a shade under 30 miles.  Despite the short length this particular segment of US 101 has several notable locales in; Cannon Beach, Seaside, Astoria and the Astoria-Megler Bridge.


My trip on US 101 began in downtown Cannon Beach after taking US 26 on the Sunset Highway west out of Portland.


Cannon Beach is an incorporated City within Clatsop County with an approximate population of around 1,700.   Cannon Beach is located on the Pacific Ocean off of Ecola Creek.  Ecola Creek and what is now Cannon Beach was explored by William Clark of the Lewis & Clark Expedition in 1805.  During the ensuing decades a small community known as Elk Creek was settled near Ecola Creek.   In 1846 a cannon from the wrecked USS Shark landed south of Elk Creek near Arch Cape. …