Skip to main content

Paper Highways; unbuilt California State Route 100 in Santa Cruz

This edition of Paper Highways examines the unbuilt California State Route 100 in Santa Cruz.



The History of Unbuilt California State Route 100

The route that became CA 100 was added to the State Inventory in 1959 as part of the Freeway & Expressway System as Legislative Route 287.  According to CAhighways.org the initial definition of LRN 287 had it begin at LRN 5 (CA 17) and was defined over the below alignment to LRN 56 (CA 1) through downtown Santa Cruz.

-  Ocean Street
-  2nd Street
-  Chestnut Street

For context the above alignment would required tearing down a large part of the densely populated Santa Cruz.  A modern Google imagine immediately reveals how crazy an alignment following Ocean Street, 2nd Street, and Chestnut Street would have been.


LRN 287 first appears on the 1960 Division of Highways State Map.



In 1961 the definition of LRN 287 was generalized to; from LRN 5 via the beach area in Santa Cruz to LRN 56 west of the San Lorenzo River.  This new more generalized route description of LRN 287 can be first seen on the 1962 Division of Highways State Map.



During the 1964 State Highway Renumbering LRN 287 became CA 100.  The 1964 Division of Highways Map shows a similar route definition to what LRN 287 had in 1961.



CA 100 never had a formal route adoption but somehow it ended up being rescinded anyways in 1975 according to CAhighways.  One of the proposals for a freeway bypass of downtown Santa Cruz was building a parallel route to CA 1 north of Mission Street but it was highly contended locally.  Following U.C. Santa Cruz being established in 1965 some of the proposals for CA 100 had the corridor routed north of downtown and by the School Campus in the foothills of the Santa Cruz Mountains.

Despite the numerous proposals for CA 100 the route has never been Legislatively deleted.  CA 100 still appears on the 2005 Caltrans State Map with the same route definition it had in 1964.



Assuming CA 100 was constructed to the1964 definition it would likely split from the CA 1 freeway/CA 17 expressway junction south via the corridor of Ocean Street.  The theoretical split in CA 100 would likely occur at a shared interchange with CA 17 as seen below from current CA 1.


The reverse view from CA 1 south approaching the junction of CA 17.  The split for CA 100 would likely be a right hand exit had it been constructed.


Comments

Popular posts from this blog

Route 75 Tunnel - Ironton, Ohio

In the Ohio River community of Ironton, Ohio, there is a former road tunnel that has a haunted legend to it. This tunnel was formerly numbered OH 75 (hence the name Route 75 Tunnel), which was renumbered as OH 93 due to I-75 being built in the state. Built in 1866, it is 165 feet long and once served as the northern entrance into Ironton, originally for horses and buggies and later for cars. As the tunnel predated the motor vehicle era, it was too narrow for cars to be traveling in both directions. But once US 52 was built in the area, OH 93 was realigned to go around the tunnel instead of through the tunnel, so the tunnel was closed to traffic in 1960. The legend of the haunted tunnel states that since there were so many accidents that took place inside the tunnel's narrow walls, the tunnel was cursed. The haunted legend states that there was an accident between a tanker truck and a school bus coming home after a high school football game on a cold, foggy Halloween night in 1

Porter-Parsonsfield Covered Bridge - Maine

  Spanning over the Ossipee River on the border between Porter in Oxford County, Maine and Parsonsfield in York County, Maine is the 152 foot long Porter-Parsonsfield Covered Bridge. The Porter-Parsonsfield Bridge is built in a Paddleford truss design, which is commonly found among covered bridges in the New England states. The covered bridge is the third bridge located at this site, with the first two bridges built in 1800 and 1808. However, there seems to be some dispute for when the covered bridge was built. There is a plaque on the bridge that states that the bridge may have been built in 1876, but in my research, I have found that this bridge may have been built in 1859 instead. That may check out since a number of covered bridges in northern New England were built or replaced around 1859 after a really icy winter. The year that the Porter-Parsonsfield Covered Bridge was built was not the only controversy surrounding its construction. There was a dispute over building and maintain

US Route 299 and modern California State Route 299

US Route 299 connected US Route 101 near Arcata of Humboldt County east across the northern mountain ranges of California to US Route 395 in Alturas of Modoc County.  US Route 299 was the longest child route of US Route 99 and is the only major east/west highway across the northern counties of California.  US Route 299 was conceptualized as the earliest iteration of what is known as the Winnemucca-to-the-Sea Highway.  The legacy of US Route 299 lives on today in the form of the 307 mile long California State Route 299.   Featured as the cover of this blog is the interchange of US Route 101 and US Route 299 north of Arcata which was completed as a segment of the Burns Freeway during 1956.   Part 1; the history of US Route 299 and California State Route 299 The development of the State Highways which comprised US Route 299 ("US 299") and later California State Route 299 ("CA 299") began with 1903 Legislative Chapter 366 which defined the general corridor of the Trinit