Skip to main content

Trans-Sierra Highway Passes; Interstate 80 Donner Summit

Back in 2016 I attempted as many Trans-Sierra Highway Passes as I could upon my return to California.  I started with Interstate 80 over Donner Summit during the late winter on the way to Lake Tahoe and Virginia City.


Donner Summit is actually located north of the 7,056 foot Donner Pass.  Donner Summit has a listed height of 7,277 feet above sea level which is listed at the rest area on the eastbound lanes heading towards Truckee.






As I-80 begins to descend from Donner Summit there is an overlook of Donner Lake and Donner Pass.




US 40, the Lincoln Highway, First Trans-Continental Railroad, and the Dutch Flat & Donner Lake Railroad all crossed Donner Pass on various different alignments to the south of Donner Summit.


Previously I wrote a blog about Donner Pass which includes a history of early pioneer crossings, the Donner Party, the Dutch Flat & and Donner Road, the Lincoln Highway, and of course US 40 which can be found here:

Old US Route 40 on Donner Pass Road

Regarding Donner Summit and Interstate 80; it's construction was meant to replace US 40 and bypass Donner Pass Road.  I borrowed this excerpt from my Donner Pass Road blog regarding the construction timeline of I-80 over Donner Summit:

"Not much changed with Donner Pass Road until the Federal Aid Highway Act of 1956 which of course led to the Interstate system.  The first visual change that can be seen on the state highway map with Donner Pass Road being bypassed is in 1960 when a new stub of I-80 is shown running from the Nevada state line west past Truckee to Donner Lake.

1960 State Highway Map

The adopted routing of I-80 on Donner Summit appears on the 1961 State Highway map.

1961 State Highway Map

On the 1965 State Highway Map Donner Pass Road is shown being bypassed by I-80 via Donner Summit, but US 40 still shown as present in California.

1965 State Highway Map

It isn't until the 1967 State Highway Map that US 40 completely disappears from California.

1967 State Highway Map "

I-80 and Donner Summit are very apparent from the air.  Back in May I took some photos on a flight to Seattle which can be seen here:

Donner Pass; from 30,000 feet

Comments

Popular posts from this blog

Interstate 40 and the H-Bomb

Interstate 40 within California is entirely contained to San Bernandio County over a course of 155 miles from Interstate 15 in Barstow east to the Arizona State Line at the Colorado River.  Interstate 40 is aligned entirely in the Mojave Desert over the same general corridor established by US Route 66 and the National Old Trails Road.   Interstate 40 is known as the Needles Freeway and has an interesting backstory which included the prospect of the Bristol Mountains being excavated by way of nuclear blasts as part of Operation Carryall.   Part 1; the history of Interstate 40 in California The focus on this blog will be primarily centered around the construction of Interstate 40 ("I-40") within California.  That being said the corridor of automotive travel east of Barstow to the Arizona State Line was largely pioneered by the National Old Trails Road ("NOTR")   In April of 1912 the NOTR was organized with the goal of signing a trans-continental highway between Baltim

California State Route 232

This past month I drove the entirety of California State Route 232 in Ventura County. CA 232 is an approximately 4 miles State Highway aligned on Vineland Avenye which begins near Saticoy at CA 118 and traverses southwest to US Route 101 in Oxnard.  The alignment of CA 232 was first adopted into the State Highway System in 1933 as Legislative Route Number 154 according to CAhighways.org. CAhighways.org on LRN 154 As originally defined LRN 154 was aligned from LRN 9 (future CA 118) southwest to LRN 2/US 101 in El Rio.  This configuration of LRN 154 between CA 118/LRN 9 and US 101/LRN 2 can be seen on the 1935 California Division of Highways Map of Ventura County. 1935 Ventura County Highway Map According to CAhighways.org the route of LRN 154 was extended west from US 101/LRN 2 to US 101A/LRN 60 in 1951.  Unfortunately State Highway Maps do not show this extension due to it being extremely small. During the 1964 State Highway Renumbering LRN 154 was assigned CA 232.  Of n

California State Route 128

California State Route 128 is a 121 mile State Highway which spans from California State Route 1 at the mouth Navarro River eastward to Interstate 505 near Winters.  California State Route 128 is one of California's most underrated scenic State Highways which traverses; Mendocino County, Solano County, Napa County and Yolo County.  Presently California State Route 128 has 11 unconstructed miles which would connect it from Interstate 505 east to California State Route 113 in Davis.   Part 1; the history of the original California State Route 28 and California State Route 128 What became California State Route 128 ("CA 128") was announced in the   August 1934 California Highways & Public Works  as the original CA 28.    CA 28 in it's original definition was aligned from CA 1 near Albion east to US 40 near Davis.   CA 28 as originally defined was comprised of numerous Legislative Route Numbers ("LRN") which were adopted as follows: -  LRN 1  between McDona