Category Archives: US 91

August 12, 2017 Cajon Pass Highway Tour

South end of Blue Cut showing fire damage.

On August 12, 2017, I will be hosting this websites first highway tour in the Cajon Pass area. This tour will cover the roadway from Verdemont to Cajon Summit. Some portions will have to be skipped, unfortunately, due to fire-related closures. The start of the tour has changed from the initial announcement. It will now begin at Devore, in front of Tony’s Diner at 18291 Cajon Blvd, San Bernardino, CA 92407 at 10 am. Please do not park in their parking lot. There is plenty of on-street and off-street parking in the area.

After a brief introduction, we plan to leave at about 10:30 am. The tour will stop at the following locations:

  • Verdemont (backtrack)
  • Cajon Blvd (at the freeway)
  • Kenwood Ave
  • Keenbrook
  • Blue Cut
  • Debris Cone Creek
  • Cajon Junction
  • Cajon Summit

Additional stops may be added if needed. I strongly recommend bringing water and snacks as there are few water/food stops along the route. Please RSVP if you plan to attend this tour. Again, we will be leaving the starting point no later than 10:30 am. Please RSVP no later than August 11 so that I can get a rough number of how many will attend. I look forward to seeing you out there!

Poll results and the first tour

Just north of Kenwood Road looking toward Keenbrook. Burn area is evident near the trees in the distance as well as in the mountains.

After taking a small poll on this site regarding possible highway tours, the results are in. It would seem that the Cajon Pass area was the most popular. As such, it will be the first tour given. Unless conditions warrant otherwise, the first tour will be on August 12, 2017. It will begin at the San Bernardino Metrolink station at 10 am. While a more exact itinerary will be created in the near future, the tour will cover the highway as well as the geology from the train station to Cajon Summit. The tour will be in a caravan style with specific stopping points. There may be some short hikes as well to see old pavement, alignments, or bridges. There will also be no cost for the tour. Please RSVP as soon as you can so I can get an idea of how many may show. It should be a lot of fun and I hope to see you out there!

Blue Cut Fire Damage – Highways

On September 6, 2016, I finally got a chance to survey the damage to the roadways in Cajon Pass that were involved in the Blue Cut Fire. Portions of the area are still closed, specifically the area north of Cajon Junction, so I was unable to access the Alray UP or the abandoned expressway sections in that area.

I was, however, able to inspect State 138 east of I-15 and all of old US 66 / 91 / 395 south of Cajon Junction. I chose not to investigate State 138 west of I-15 as there was a lot of heavy construction in progress for a four-lane widening project.

I started my journey by taking the “new” Cajon Blvd alignment that bypasses Devore Junction (I-15 and I-215). Caltrans has recently completed reconstruction of this interchange and as part of that reconstruction, they have partly rebuilt Cajon Blvd through here. While much of it is a new alignment, it does follow the original alignment (pre-1937). As a result, I was able to get some nice photos of part of that alignment.

New section of Cajon Blvd adjacent of I-15, south of Kenwood Road.
New section of Cajon Blvd adjacent of I-15, south of Kenwood Road.
Looking southerly along Cajon Blvd toward I-15.
Looking southerly along Cajon Blvd toward I-15.
Pre-1937 alignment of US 66 / 395 running along the base of the cliff.
Pre-1937 alignment of US 66 / 395 running along the base of the cliff.

The burn area itself became very apparent after Kenwood Road. The fire in this area burned as far as Keenbrook, damaging many structures in that area. A few things didn’t get burned though. One, a lone sign that says “EAT” along with its accompanying structure, remained intact. At Blue Cut, the source of the fire, I was rather amazed at what didn’t burn. Most of the cottonwood and oak trees survived untouched as well as most of the guardrail in the median of the expressway.

Just north of Kenwood Road looking toward Keenbrook. Burn area is evident near the trees in the distance as well as in the mountains.
Just north of Kenwood Road looking toward Keenbrook. Burn area is evident near the trees in the distance as well as in the mountains.
South end of Blue Cut showing fire damage.
South end of Blue Cut showing fire damage.
Looking westerly at Blue Cut. The fire burned all around here, but left most of the trees intact.
Looking westerly at Blue Cut. The fire burned all around here, but left most of the trees intact.
At Blue Cut, looking easterly. Despite the name of the fire, it didn't do that much damage here.
At Blue Cut, looking easterly. Despite the name of the fire, it didn’t do that much damage here.

North of Blue Cut, the burn area stops mostly at the old highway, but not east of it. The wooden railing is still intact at Debris Cone Creek. Some structures were damaged near Cajon Junction, such as the Chevron gas station and the McDonalds restaurant.

Looking northerly from the Cleghorn Creek Bridge toward Cleghorn Road. Utility crews are visible in the distance.
Looking northerly from the Debris Cone Creek Bridge toward Cleghorn Road. Utility crews are visible in the distance.
1939 bridge over Debris Cone Creek. Concrete K-rail was added later to protect the wooden railing.
1939 bridge over Debris Cone Creek. Concrete K-rail was added later to protect the wooden railing.
Side view of the 1939 Debris Cone Creek Bridge with its 1952 counterpart. The cross beams in the railing were removed at some point in the past few years.
Side view of the 1939 Debris Cone Creek Bridge with its 1952 counterpart. The cross beams in the railing were removed at some point in the past few years. The fire burnt up to the edge of the 1952 span.
Old railing just south of Cajon Junction, just missed by the fire.
Old railing just south of Cajon Junction, just missed by the fire.

After Cajon Junction, I followed State 138 east toward Summit. The burn area covered the entire highway from Cajon Junction to Summit Valley Road. This section is scheduled to be realigned in the near future as well.

Hwy 138 and the Cajon Amphitheater from Summit.
Hwy 138 and the Cajon Amphitheater from Summit.

Overall, most of the old highways through the Cajon Pass remained intact. Some guardrail was damaged but most was only lightly burned. How this area will react during the next few major rain storms does remain to be seen. Hopefully, mudslides and debris flows don’t become the order of the day.

Blue Cut Fire and Other Wildfire Information

With all the wildfires propping up lately, it is important to stay on top of the news. Your local newspaper and tv stations should be able to give updated information, but you can also get it directly from the agencies involved. I highly recommend the sites listed below as they can give more detailed information about what is going on and are usually updated regularly.

Geospatial Multi-Agency Coordination (Fire incident mapping) 
http://www.geomac.gov/

Incident Information System (Mapping and Detailed Incident Reports)
http://inciweb.nwcg.gov/

Caltrans Road Conditions
http://www.dot.ca.gov/cgi-bin/roads.cgi

California Highway Patrol  Traffic Incident Information (Gives very detailed reports on how these fires affect roadways)
http://cad.chp.ca.gov/

If you have any websites that you would like to share – Please send us feedback or use the comments for this post.

Blue Cut Fire

Fire Perimeter Map from InciWeb as of 8/17/2016 at 8:22 am

In regards to the current fires in the Cajon Pass, I plan to assess the damage to the highways myself once the area is clear. From what I understand so far, it looks like most of the wooden railing along US 66 / 91 / 395 in the pass may be gone, in addition to the historic Summit Inn restaurant at Cajon Summit. Other structures, not associated with the roadway, have also burned. According to CHP, a railroad bridge in the pass has burned, the Alray UP where former US 66 / 91 / 395 passed below. Please stay clear of the Cajon Pass for the duration of this fire.

DETOURS:

If you need to head north toward I-15 and I-40 near Barstow, I recommend taking I-10 East to State 62 East to State 247 North to Barstow. From there, you will connect with I-15 and I-40 just west of their junction. State 247 is a two lane roadway and may be busier than usual, so use caution.

All other traffic should use State 14 through Santa Clarita and the Antelope Valley to connect with points to the north/west of I-15.

Following old US 91 near Corona

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.
Abandoned section of US 91 near Green River Road.
1939 culvert on the abandoned section.
1939 culvert on the abandoned section.
Old raised median on Green River Road.
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.
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.
Nice section of intact wooden railing.
Old Route 91 milemarker.
Old Route 91 milemarker. Reads “091, RIV, mileage illegible”
Former onramp from SB State 71 to WB US 91.
Former onramp from SB State 71 to WB US 91.
1939 bridge and railing near the eastern end.
1939 bridge and railing near the eastern end.