CA 227

[Max Rockatansky]

The second of five routes yesterday was CA 227 from San Luis Obispo to Arroyo Grande, got the photo album up:

https://flic.kr/s/aHsmh8NSfG

[Max Rockatansky]

Finishing looking into CA 227 and LRN 147.  The north terminus made much more sense when it met US 101 on Broad Street in San Luis Obispo.  There is no real logical way for the modern routing of CA 227 to meet US 101 on it's current freeway alignment.  That would certainly explain why CA 227 takes a series of weird turns through the city.

http://surewhynotnow.blogspot.com/2018/04/california-state-route-227.html

[Max Rockatansky]

Someone pointed out on my page that the 1935 Gousha map displays CA 1 following LRN 147 (CA 227) between Arroyo Grande and San Luis Obispo.  I found the map in question on David Rumsey:

https://www.davidrumsey.com/luna/servlet/detail/RUMSEY~8~1~333491~90101622:Shell-Official-Road-Map-California-?sort=Pub_List_No_InitialSort%2CPub_Date%2CPub_List_No%2CSeries_No&mi=2&trs=8&qvq=q:california%20road%201935;sort:Pub_List_No_InitialSort%2CPub_Date%2CPub_List_No%2CSeries_No;lc:RUMSEY~8~1

There isn't enough detail, but the above map seems to infer CA 1 was to enter Arroyo Grande branching away from LRN 56 via Valley Road (not state highway at the time).  Interestingly this segment would be added to the definition of CA 227 in 1967 but was never actually adopted.  The 1937 Gousha map plain doesn't show where CA 1 is in detail between Arroyo Grande, Pismo Beach and San Luis Obispo.

https://www.davidrumsey.com/luna/servlet/detail/RUMSEY~8~1~325741~90094662:1937-road-map-of-California?sort=Pub_List_No_InitialSort%2CPub_Date%2CPub_List_No%2CSeries_No&mi=2&trs=97&qvq=q:california%20road%201937;sort:Pub_List_No_InitialSort%2CPub_Date%2CPub_List_No%2CSeries_No;lc:RUMSEY~8~1

The first map clearly showing CA 1 going to Pismo Beach via LRN 56 is the 1938 Division of Highways map.  I tend use this map as my baseline given most Sign Routes didn't get fully posted until 1936-1938:

https://www.davidrumsey.com/luna/servlet/detail/RUMSEY~8~1~239588~5511892:Road-Map-of-the-State-of-California?sort=Pub_List_No_InitialSort%2CPub_Date%2CPub_List_No%2CSeries_No&mi=6&trs=8&qvq=q:california%20highway%201938;sort:Pub_List_No_InitialSort%2CPub_Date%2CPub_List_No%2CSeries_No;lc:RUMSEY~8~1

The August 1934 CHPW which announced the initial Sign Routes (page 275) doesn't really provide insight where 1 was supposed to be in southern San Luis Obispo County.

https://archive.org/details/californiahighwa193436calirich/page/n275/mode/2up
 
I suppose it is possible CA 1 was intended to use LRN 147.  It wouldn't exactly been without precedent for a 1934-era Sign Route to use some highway segments which weren't actually state owned.