“Bite-Size Bits of Local, National, and Global History”
“Bite-Size Bits of Local, National, and Global History”
Norden in Nevada County, California — The American West (Pacific Coastal)

Tunnel 6

Hwy 40 Scenic Bypass

Tunnel 6 Marker image. Click for full size.
By Barry Swackhamer, August 30, 2014
1. Tunnel 6 Marker
History 1866 - Right here
Bam, bam, quarter turn; Bam, bam, quarter turn; Bam, bam, quarter turn; all day long, three shifts a day, day after day, week after week. Chinese workers pounded away at the solid granite. One worker held a star bit, turning it a quarter turn as two other workers pounded the bit with 18 lb. sledges. Four teams at four separate faces making progress only inches a day, cutting through 1659 feet of solid granite. Once a hole was drilled, it was packed with black powder, the fuse was set, and the workers ran. When the smoke cleared, workers hauled out the rubble — all by hand — no machines.

Imagine the courage holding the drill bit. Imagine the confidence in your friends. Imagine the accuracy of the sledge handlers; imagine their concentration, hour after hour.

That was Tunnel 6, the longest tunnel of the Sierra Crossing.

Working the solid granite went too slowly. They blasted a shaft straight down above the middle to open two more faces. Hauling the rubble by hand was too slow. A steam engine was brought in to haul up the rubble.

When all four faces joined up, they were off by only two inches — after two years. Amazing.

Facing granite was not the only obstacle. The workers faced avalanches and heavy snows: 40 feet that
Tunnel 6 Marker image. Click for full size.
By Barry Swackhamer, August 30, 2014
2. Tunnel 6 Marker
This marker is on the left.
first winter. Workers didnít see daylight for days at a time as they moved from their living sheds to work faces through tunnels dug into the snow.

Nitroglycerine would speed the tunneling but still, work wasnít fast enough. The railroad hauled track, railroad cars and a steam engine over the pass, over the snow, above here, between Donner Peak and Mt. Judah, so they could continue building on the eastern side — to race across Nevada, to earn pay for miles, to beat the Union Pacific which was coming from the east.

Pictured here, Alfred A. Hart photographs: tunnel 6 incomplete top, “Shaft House over Summit Tunnel, American Peak (now Mt. Lincoln) in the distance,” and east portal of Tunnel 6, bottom.

Things to do right here
Hike to the Pacific Crest Trailhead at Lake Mary and instead of going up hill try and retrace the route going downhill of the old Lincoln Highway. Itís what appears to be a roadway that is now being overgrown.

Walk on the top, over the tunnel and see the monument there as well as the metal covering for the shaft that was used so the Chinese workers could work from the middle out as well as the outside in.
Erected by Donner Summit Historical Society. (Marker Number 23.)
Marker series.
Western entrance to Tunnel 6 image. Click for full size.
By Barry Swackhamer, August 30, 2014
3. Western entrance to Tunnel 6
This marker is included in the 20-Mile Museum - Hwy 40 Scenic Bypass, and the Donner Summit Historical Society marker series.
Location. 39° 19.022′ N, 120° 19.789′ W. Marker is in Norden, California, in Nevada County. Marker is on Sugar Bowl Road near Donner Pass Road, on the right when traveling south. Click for map. Marker is in this post office area: Norden CA 95724, United States of America.
Other nearby markers. At least 8 other markers are within walking distance of this marker. Summit Hotel (here, next to this marker); Sugar Bowl Academy (approx. 0.2 miles away); Great Summit Tunnel of the Sierra Nevada (approx. 0.2 miles away); Sacred Symbols From Ancient Times (approx. half a mile away); Petroglyphs (approx. half a mile away); The Lodge at Sugar Bowl (approx. half a mile away); The Magic Carpet (approx. half a mile away); Charlie Chaplinís Gold Rush (approx. half a mile away). Click for a list of all markers in Norden.
More about this marker. This marker is removed every Fall for the winter months and replaced every Spring for the summer season.
Also see . . .
1. The 20-Mile Museum Brochure. Information and the listing of all the markers within this series. (Submitted on March 28, 2015.) 

2. Tunnel 6 - The Building. An article by the Donner Summit Historical Society detailing the building of Tunnel 6 (Submitted on March 28, 2015.) 
Categories. Asian AmericansMan-Made FeaturesRoads & Vehicles
Credits. This page originally submitted on , by Barry Swackhamer of San Jose, California. This page has been viewed 193 times since then and 82 times this year. Photos:   1, 2, 3. submitted on , by Barry Swackhamer of San Jose, California. • Syd Whittle was the editor who published this page. This page was last revised on June 16, 2016.
Editor’s want-list for this marker. Photo of the monument on top of the tunnel. Photos of the old Lincoln Highway mentioned in marker text. • Can you help?
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