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

Training Wall

Training Wall Marker image. Click for full size.
By Barry Swackhamer, February 24, 2014
1. Training Wall Marker
Click on photo to view historical photos and to read captions.
Inscription. This stone wall you see before you is a partial replica of the north training wall, one of two historic jetties called “training walls” because they were designed to direct the forces of the ebb tide to scour Oakland’s shipping channel and keep it open. Before training walls were built, vessels often had to wait until high tide before they could sail through the shallow waters off of Oakland. The training walls were designed by the U.S. Army Corp of Engineers in 1874. Twenty years in the making, the walls helped make it possible for ocean-going ships to sail up the estuary – an important part of the development of Oakland as a Port.

Building the training walls took:
• More than 310, 000 tons of stone
• Over 500,000 square feet of dry stone facing
• Approximately $615,000

Length: 9,500 Feet – north wall; 12,000 Feet – south wall
Width: 8 feet (top) – 20 feet (base)
Height: 6 feet above low water

Stone for the training walls came from shoreline quarries at Yerba Buena Island, Angle Island, San Francisco, San Bruno, and San Rafael.

Annual cargo entering of leaving Oakland harbor: 1874 – 154,000 tons; 1900 – 3,250,000 tons (2000% increase!)

In 2001, when the Port of Oakland deepened and widened the estuary to accommodate larger containerships, the north training wall was demolished. Stones were set aside from the original
Training Wall Marker image. Click for full size.
By Barry Swackhamer, February 24, 2014
2. Training Wall Marker
wall and used to rebuild a 150-foot-long portion of the wall at this site. The south training wall can still be seen along the Alameda shore of the estuary.
Location. 37° 48.08′ N, 122° 19.478′ W. Marker is in Oakland, California, in Alameda County. Marker is on Middle Harbor Road near 7th Street, on the right when traveling south. Click for map. Marker is at or near this postal address: 3660 Middle Harbor Road, Oakland CA 94607, United States of America.
Other nearby markers. At least 8 other markers are within 2 miles of this marker, measured as the crow flies. Chappell Roland Hayes (about 800 feet away, measured in a direct line); John "Alex" Alexander (approx. 0.2 miles away); Western Pacific Mole (approx. ¼ mile away); USS Oakland CL-AA 95 (approx. 0.3 miles away); Rear Admiral R.J. "Bear" Arnold, U.S.N. (approx. 0.3 miles away); USS Oakland Mast (approx. 0.4 miles away); Alameda Terminus of the 1st Transcontinental Railroad (approx. 1.6 miles away); Pan Am China Clipper (approx. 1.6 miles away). Click for a list of all markers in Oakland.
More about this marker. This marker is located in Middle Harbor Shoreline Park just off an unnamed road heading south from the USS Oakland mast.
Categories. Waterways & Vessels
Training Wall image. Click for full size.
By Barry Swackhamer, February 24, 2014
3. Training Wall
Credits. This page originally submitted on , by Barry Swackhamer of San Jose, California. This page has been viewed 303 times since then and 15 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.
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