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.
I took a trip recently to the Corona area to check out some of the old alignments of US 91. I had been there before, but it has been a long time. Starting from the Green River exit off of the 91 Freeway, I headed east along the south side of the freeway. Here, the roadways named Green River Road and Palisades Drive cover the pre-freeway alignment of US 91. This section is also a portion of the 1939 Prado Dam Relocation. This realignment took the highway out of the riverbed to the north and pushed it closer to the hills. A significant portion remains today relatively intact.
Near the Green River Road interchange, an abandoned portion of the roadbed is revealed by a 1939 culvert. The pavement has long since been removed. A portion of the old median, complete with curb divots, remains to the east. The best portion, however, is on Palisades Drive. This section has a fairly continuous old median, old bridges, wooden railing, and even a mile marker from Route 91. This whole section was bypassed in the early 1970’s along with a change to the 91 / 71 interchange.
Abandoned section of US 91 near Green River Road.
1939 culvert on the abandoned section.
Old raised median on Green River Road.
Section of Palisades Drive, restriped to two lanes from four. Old raised median and wooden railing are visible here.
Nice section of intact wooden railing.
Old Route 91 milemarker. Reads “091, RIV, mileage illegible”
In October 2008, Lake Shasta was dropping to near historic lows. I took a trip up there to hike many of the exposed alignments. I also got out in the water in my wetsuit when I needed to. The whole trip was a lot of fun. Here are the photos from that trip.
Salt Creek Inlet and Lakehead Area:
Pit River Area:
Where US 99 goes into the lake on the south bank near the Pit River Bridge.
On Sunday, February 24, 2012, I went out for a ride to Campo on my motorcycle. I wanted to take some photos of the old sections of Hwy 94 and the weather was great for a ride. Starting out, it was a quick freeway ride to Campo Junction, where the two lane portion of Hwy 94 starts. That is where the fun begins. It was also where the first stop was, at the 1929 Sweetwater River bridge.
1929 Sweetwater River Bridge
After I left the bridge, my next stop was at a section of old concrete I had discovered on a previous ride. With a camera in hand, it was time to get photos and explore some more. I didn’t find any date stamps, but I did find lots of old striping. Still pretty cool.
1920’s concrete near Jamul
After Jamul, there was an old creek crossing with concrete I had found recently. It appears to be an Arizona type crossing instead of a culvert. The new crossing is now a culvert. I’m not sure its age, but I’m going to guess it is from the 1930’s. Also in the area is a neat bridge crossing Dulzura Creek at Otay Lakes Road. It was built in 1947 and has a nice sleek look.
Original low-water crossing on Hwy 94
1947 Dulzura Creek Bridge
In Dulzura, I stopped at a 1930 bridge which had bridge abutments near it from an even older span. I couldn’t quite tell what sort of a bridge the original one was, but was most likely wooden.
1930 Dulzura Creek Bridge at Dulzura
Further up the road at Cottonwood Creek, there are a few items of interest. The “new” Cottonwood Creek bridge from 1954 bypassed both the original bridge and large section of the alignment. Barrett Smith Road follows the old alignment up the steep grade out of Barrett Junction.
Cottonwood Creek crossing on Hwy 94 at Barrett Junction
At Dogpatch, Hwy 94 crosses the San Diego and Arizona Railroad for the first time under a 1915 bridge. Just after that bridge, there is another 1947 bridge. Adjacent to the 1947 span, there are abutments to an earlier bridge.
1947 bridge at Dogpatch
1915 Doigpatch UP where the San Diego and Arizona Railroad crosses
My last stop was Campo. I needed to fuel up and get photos of the bridge at Campo Creek. It is the last bridge with wooden railing on Hwy 94. After I stopped here, I headed back to town on Hwy 94. I enjoyed the ride and the scenery. It was the first time in a long time that I had stopped so many times on 94. The last few trips have been just riding or driving.