Long before the Isabella Reservoir was built in the 1950’s, State Highway 178 passed through the Kern River Valley on an alignment much different than it is today.
With the current drought, Lake Isabella is a puddle of what it used to be…but it’s amazing what the lake has hidden all these years. The lake has not been this low since 1977 and is the second lowest level since the dams were finished in 1953.
In April, I took two trips back to the areas near where the original towns of Isabella and Kernville stood before the lake covered them and their history. Unfortunately during my visit, the actual townsite of Isabella was still under several feet of water but the remains of the trees that use to shade the town are clearly visable sticking out of the lake in several photos.
In the 1950’s, a section of what is now the 15 in San Diego was built. Known then as the Wabash Freeway, it ran from Harbor Blvd to 40th St in the City Heights area. Today, it is known as the 15 freeway and has been upgraded significantly. Access to the old freeway was a bit different than today. Nile Street in North Park used to have a direct connection with the freeway. Today, Nile Street ends in a park. A section of the old ramp still exists, however, as an access to the park.
Base of the Nile Street Ramp.
1950’s railing still intact.
Raised median and railing on the Nile Street Ramp.
1963 aerial view showing the Nile Street ramp and the old configuration of the Wabash Blvd Freeway. Note the “ghost ramp” where I-805 now branches off just north of the Nile Street ramp. Courtesy – UCSB Archives
Even in heavily built up Orange County, there can still be places where old highways can be seen. One of the best examples is located in Brea Canyon, where the Orange Freeway winds its way through open and undeveloped lands between Orange and Los Angeles Counties. Before the freeway, State 57 followed Brea Canyon Road. This two-lane roadway has changed little through here and has a few interesting features.
Old pipe railing and current 1930’s alignment.
Section of original concrete, bypassed in the 1930’s.
Former weigh station platform.
1939 bridge over Brea Creek.
Detail of the railing from the 1939 bridge.
Old concrete just past the lower 1930 bridge.
Last section of old concrete just north of State College Blvd.
In July 2010, I was able to go to Baja California with a friend. Part of our route traversed Federal Highway 2 (Mexico), which suffered some damage from the April 2010 quake. Hwy 2 had been repaired but the adjacent old alignment had not been. I was rather amazed at the amount of offset from this earthquake. I observed about 2′ of horizontal and about 5′ of vertical offset at the highway crossing.
East of the fault, bridge embankments on the Hwy 2 Mexicali Bypass show signs of settling.
Offset right of way fence next to Hwy 2.
Old alignment of Hwy 2, now offset by about 2 feet horizontally and 5 feet vertically.
Side view of the old alignment showing the vertical offset.
Breaks in the soil to the north. Two distinct scarps can be noted here.
At the break, the old alignment now has a steep ramp and crack.
In the early 1930’s, Los Angeles County began construction of an additional roadway over the San Gabriel Mountains via the East Fork of the San Gabriel River. The road, then known as the Camp Bonita – Prairie Fork Road, was about half complete with with four larger bridges and a tunnel, by early 1938. Work had progressed as far as “The Narrows” by 1938. However, the March 2-3, 1938 storms caused much of the roadway to be washed out. The project was then abandoned, leaving a large arch bridge stranded many miles upriver. The tunnel still exists as well, just north of the “Bridge to Nowhere”, though it has been sealed at both ends.
1936 arch bridge – The Bridge to Nowhere
1936 stamp on the arch bridge.
Looking over the arch bridge to the tunnel site.
Abandoned and partly destroyed bridge over the river.
Bridge over Cattle Canyon on the East Fork Road. This is similar to what the removed bridges north of here would have looked like.
1934 USGS Camp Bonita map showing the roadway completed to about 1 mile south of the “Bridge to Nowhere” site.
1940 USGS Camp Bonita map showing the now stranded bridge location.
In the 1955, a new road building project commenced in the canyon, first known as East Fork Road, then Shoemaker Canyon Road. This new alignment would stay high above the canyon floor until it got nearer to the “Bridge to Nowhere”, allowing that earlier work to come to some use. Progress on this roadway was slow, mostly due to poor funding. Convict labor was used for most of the project, similar to many other road building efforts at the time in Los Angeles County. Two tunnels were constructed as well. These still exist and are mostly intact. This project too was cancelled in 1976 , leaving another large scar in the canyon. This road is presently known as Shoemaker Canyon Road.
Stone railing along Shoemaker Canyon Road.
Looking toward the higher peaks of the San Gabriels along Shoemaker Canyon Road.
End of the pavement and open section of Shoemaker Canyon Road.
1961 and 1964 tunnels in view.
Partly graded roadway and tunnel along the “Road to Nowhere”.
Date stamp on the first tunnel.
Inside the longest tunnel, from 1961.
Grading along the “Road to Nowhere”.
Northern tunnel from 1964.
1966 USGS Glendora map showing the “Shoemaker Canyon” roadway under construction.
Today, the canyon is protected from future development through the Sheep Mountain Wilderness Area. Even without this protection, the geology of the canyon makes for a very expensive project. Maintenance would also be costly, as seen with State 39 through San Gabriel Canyon and above Crystal Lake. In time, all these structures and cuts will wash away, leaving the canyon with only bits of concrete and asphalt to show what was once here.
