I want to make it clear that I do not support this plan. It is true that many state government services and programs operate on a local level and could be provided by smaller state governments. But many do not. Water is the elephant in this room, since many areas get their water from other parts of the state, and of course this is especially important in drought years like this one. However, there are other subject matters, such as prisons, pensions, and universities, where splitting the state would cause real problems.
Moreover, it seems to me that any of the potential benefits of smaller, more responsive state governments would be outweighed by the problems entailed by the insane boundary divisions that Tim Draper chose for this particular split. Dividing metropolitan regions into multiple states causes serious problems for regions such as New York and Philadelphia (requiring the creation of unwieldy entities such as the Port Authority of New York and New Jersey to manage metropolitan affairs) and it is a terrible idea to intentionally reproduce those problems here by creating state lines dividing the Los Angeles and San Francisco urban areas.
Nonetheless, it will be on the ballot, and while it’s extremely unlikely to pass a vote of the people (much less be approved by Congress), it’s fun to think about what might happen if it did pass.
The Highway Network
Transportation probably wouldn’t suffer much from a state split: highway construction and maintenance is highly localized anyway, and federal entities already exist to handle interstate transportation. But it’s not clear that the new states would retain the California numbered highway system. Certainly some of them, at least, would adopt new highway shield signs, and the unity of the system would be lost.
What’s the solution? More U.S. highways! The American Association of State Highway and Transportation Officials (AASHTO) has tried to eliminate US highways that were within one state, but now – after the passage of the Six Californias plan – there are a number of state highways that will cross new state boundaries. Surely it would make sense to give these US highway numbers.
Of course, I don’t actually support the expansion of California’s already expansive automobile infrastructure, not with the terrible deficits in infrastructure for less environmentally harmful forms of transportation. But re-signing existing highways isn’t all that significant an expense.
U.S. highway numbers
Wikipedia articles on the US highway system and California highway system are helpful for the uninitiated.
The US highway numbering scheme is as follows: primary routes have one or two digits, and spurs of those have three digits (with the exception of the main route US 101, where 10 is the first “digit”). For primary routes, even numbers run east and west, starting with low numbers in the north, and odd numbers run north and south, starting with low numbers in the east. (The opposite of the later Interstate numbering system.) The most important primary routes usually end in 0, 1, and sometimes 5, but there are many exceptions. Spur routes have three digits, with their "parent" route being the last two digits of the number: so US 199 is a spur route of US 99. Originally the first digit was in order, east to west, but this has been lost over time. Increasingly in recent years, numbers have been given that break the original US highway scheme, such as US 400 (which would have been a spur of nonexistent highway 0) and other three-digit US highways that go nowhere near their "parents".
Where I've suggested a US highway number, it's generally the next available spur number from a nearby US primary route unless noted otherwise. In some cases, I've given spurs from primary routes that have since been converted to Interstates nearby (such as US 240, numbered as a spur of US 40, even though US 40 was entirely changed to I-80 in California). I've avoided using existing US highway numbers and tried to avoid using any existing California highway numbers, but I've felt free to suggest reusing numbers that once were in use but have since been retired.
State highways to be given U.S. highway numbers
CA 1 - The Pacific Coast Highway from Leggett to San Juan Capistrano is one of the most iconic highways not just in California, but in the world. The division of California into several states will divide this highway into five pieces, in the states of Jefferson, North California, Silicon Valley, West California, and South California. This highway should be upgraded to US status to preserve its iconic nature rather than being divided up among all those states. The one problem is, what number to give it? US 1 is already used, of course, on the East Coast. The first branch of US 101 would be the unwieldy "US 1101." I suggest US 999, the highest three-digit number; it does touch branches of US 99 and goes close to US 99's historic range. Another solution would be US 111 -- after all, if ten can be the first "digit" in 101, why can't this one go to eleven? This would require renumbering existing CA 111 in South California, however.
CA 12 - This is an imporant route connecting Sonoma, Napa, and Solano counties in North California with San Joaquin and Calaveras counties in Central California. It intersects what would be US 40 if it had not been replaced by I 80, so should be given a number such as US 740.
CA 14 - This was once part of US 6, when US 6 continued south all the way to Los Angeles. While just re-extending US 6 would entail an unacceptably long stretch where US 6 and US 395 would go together (these are "concurrences" in highway-speak), CA 14 plays an important role linking Central and West California. It could be given a US number such as US 295, as a split from US 395, or US 206, honoring its historical connection with US 6.
CA 20 - This is an important east-west route connecting Fort Bragg, Clear Lake, and Colusa in Jefferson, and Yuba City, Grass Valley, and Nevada City in North California. This highway should be US 240; this would have been a branch from historic US 40 if US 40 still existed.
CA 29 - This is the main highway through the world-famous Napa Valley and is a connector between this area in Central California and Clear Lake, in Jefferson. This could perhaps be US 540, as a branch that runs from US 240 (CA 20), above, to historic US 40 in Vallejo. (Some part of CA 29 runs along what was once historic US 40.)
CA 33 - US 399 once covered what is now CA 33 between Ventura and Taft, and CA 119 between Taft and CA-99 near Bakersfield. (CA 33 began at Taft and continued northward.) The segment of CA 33 between Maricopa and Ventura is still very important in linking Ventura County in West California and Kern County in Central California. I suggest restoring US 399 as it was. The remainder of existing CA 33, although long, is entirely within Central California.
CA 41 - This is a main roadway between the coast near San Luis Obispo in West California, to Fresno and Yosemite in Central California. It is an important tourism link, and is important enough to be given a US number. The westernmost part between Morro Bay and CA-46 was formerly part of US 466. It is an important link to US 99 (CA 99), and so should be given a number such as US 599.
CA 46 - Between its intersections with CA 41 and CA 99, this was formerly part of US 466, which also included CA 41 between Morro Bay and CA 46 and CA 58 between Bakersfield and Barstow. I suggest establishing a restored US 466 with an only slightly different route: CA 46 between Cambria and CA 99 (US 99), then following US 99, then following CA 58 from Bakersfield to Barstow. The western segment of CA 58 would retain that number.
CA 49 - This is another highway of importance in California, connecting parts of the Gold Rush country, which spans Central California, North California, and Jefferson. Unfortunately there is already a US 49, and the number itself is important since it commemorates the Forty-Niners, the pioneer gold miners. US 499 is probably the best alternative available.
CA 57 - The Orange Freeway connects areas in West California and South California. It could be seen as a spur of former US 70, which once extended to Los Angeles, and so could be given the number US 570, close to its current number. Alternatively it could be given a branch number of US 60, such as 560.
CA 58 - See CA 46
CA 60 - Like Highway 14, CA 60 was a part of a US highway when that continued all the way to Los Angeles, in this case US 60. As with US 6, restoring US 60 for its original length would entail an unacceptably long concurrence between I-10 and US-60, which begins far to the east in Arizona. However, there is another alternative. The east end of CA 60 is reasonably close to the west end of CA 62, an important highway connecting I-10, Yucca Valley, Twentynine Palms, and the Arizona border. CA 60, CA 62, and AZ 95 from Parker to Quartzite could all be renumbered as US 60, re-extending US 60 into California and covering part of its former routing.
CA 70 - This road in North California and Jefferson paralleling the Feather River railroad route was formerly US 40 Alternate, and should be given a number such as US 440, commemorating its tie with US 40.
CA 88 - This highway acts as an alternate to US 50, connecting Stockton in Central California to Sutter Creek and Jackson in North California, then back through Alpine County in Central California through to Nevada, where it becomes NV 88 until it reaches US 395. This should be given a number as a branch of US 50, such as US 650. Alternatively, it could just be US 88, since 88 is one of the few two-digit numbers that are not used for US highways.
CA 89 - This road spans the Sierra from Topaz Lake on the Nevada/Central California border, serving as the main road in the Lake Tahoe and Truckee area in North California, continuing through to areas in central Jefferson. This should perhaps be given a number that marks it as a branch of US 50, such as US 750.
CA 91 - The Gardena Freeway is an important link between West California and South California. (It is not associated with historic US 91.) This should probably be given a number associated with US 60, such as US 660.
CA 99 - While much of the historical length of this highway is now I-5, a long stretch of CA-99 exists in the Central Valley which was once US 99. Now it will pass through three states — Jefferson, North California, and Central California. While there has been a movement to change this highway to an Interstate, that would entail significant expenses to bring the road up to Interstate standards. Until and unless that happens, now that it will run through three states, restoring its status to US 99 seems like an obvious move.
CA 119 - See CA 33.
CA 128 - This is an important route between Mendocino in Jefferson, US 101 near Healdsburg, and Winters in the the Sacramento area. This would primarily be a branch of US 101; however, since 101 doesn't have good branch numbers, perhaps this should be US 640, given that it is concurrent for a time with CA 29 (proposed US 540).
CA 152 - The Pacheco Pass highway is an important highway, on the main route between San Jose and Los Angeles. It will be divided between Silicon Valley and Central California. It should be given a number such as US 699 signifying that it is a spur of US 99.
CA 160 - There are only five direct connections between North California and Silicon Valley; all are toll bridges and all are on US or Interstate highways -- except this one. It should be given a number showing that is a branch of US 50, such as US 850.
CA 166 - This was never a US highway, although with a number ending in 66 it looks like it might have been a branch of US 66. (US 166 is in Kansas and Missouri.) This is an important link between Santa Barbara and San Luis Obispo counties in West California and Kern County in Central California. Although perhaps not as important as some other roads, this still could be given a US number. As a branch of US 99, it could be given the number 799.
CA 210 - This is a freeway crossing from West California to South California, is an extension of Interstate 210 and would most logically be considered part of that Interstate. It is certainly important enough to be given a US number. Although it technically violates the US numbering scheme, because it is not near US 10, I suggest using US 210 for the segment that is not an Interstate.
Summary: Proposed new or extended US highways
|Proposed US highway||Existing CA highway||From||To|
|US 60||CA 60, CA 62, AZ 95||Los Angeles||Quartzite, AZ (continuing to Virginia Beach, VA)|
|US 99||CA 99||Wheeler Ridge||Red Bluff|
|US 210||CA 210||San Dimas||Redlands|
|US 240||CA 20||Fort Bragg||Emigrant Gap|
|US 295 (or US 206)||CA 14||Santa Clarita||Inyokern|
|US 399||CA 119 and part of CA 33||Ventura||Bakersfield|
|US 440||CA 70||Sacramento||Beckwourth Pass|
|US 466||CA 46||Cambria||Famoso|
|US 540||CA 29||Vallejo||Upper Lake|
|US 570 (or US 560)||CA 57||Santa Ana||Glendora|
|US 599||CA 41||Morro Bay||Yosemite National Park|
|US 640||CA 128||Albion||Winters|
|US 650 (or US 88)||CA 88, NV 88||Stockton||Minden, NV|
|US 660||CA 91||Redondo Beach||Riverside|
|US 699||CA 152||Watsonville||Chowchilla|
|US 740||CA 12||Sepastopol||San Andreas|
|US 750||CA 89||Coleville||Mount Shasta|
|US 799||CA 166||Guadalupe||Mettier|
|US 850||CA 160||Antioch||Sacramento|
|US 999 (or US 111)||CA 1||San Juan Capistrano||Leggett|
Other state highways, considered but rejected
CA 4 - Highway 4 exists in both Silicon Valley and Central California, and parts of it are important, but as a link between the two states it is relatively minor.
CA 66 - This is a small remainder of what once was US 66. It does cross the border between West California and South California, but is not really an important route at this point, given that it is a surface street where parallel freeways exist. Still, the romance around US 66 might be sufficient to bring US 66 back in this area, which now will span two states. I can't actually recommend this, though.
CA 120 - This road is an extremely important tourism route from the outskirts of the Bay Area to and through Yosemite. However, its length is entirely in one state, Central California, and this makes it inappropriate as a U.S. highway. It could, perhaps, be designated as a western extension of US 6, and the the current US 6 between Bishop and CA 120 could be redesignated as a state highway (106 is available, or it could be called "US 6 Alternate"). This is true whether or not California is divided, however.
CA 198 - The portion of this in Silicon Valley and connecting that state is relatively unimportant compared to other east-west highways.
A number of other significant highways exist in only one of the proposed states: 36, 96, 139, and 299 only in Jefferson; 78 and 111 only in South California; 168 and 190 entirely in Central California. I can see only one solution for this: more states! I see that someone has already started the @58Californias Twitter account.