Right of Way map for <a href="https://en.wikipedia.org/wiki/California_State_Route_187" class="extiw" title="w:California State Route 187">SR-187</a> in Santa Monica as of 2019. The on/offramp to the <a href="https://en.wikipedia.org/wiki/California_State_Route_1" class="extiw" title="w:California State Route 1">Pacific Coast Highway</a> from Ocean Avenue is currently part of SR-187 and therefore currently maintained by Caltrans (This is the reason why the onramp from Ocean Avenue to the PCH does not have SR-1 enterance signs unlike all other onramps in the state). While currently not part of the legislative definition of the route, SR-187 formerly started at this location near the pier until 1988 and was never relinquished by the California Transportation Commission to local authorities. More information can be found here under the "Status" tab: <a rel="nofollow" class="external free" href="https://cahighways.org/185-192.html#187">https://cahighways.org/185-192.html#187</a>
<a href="https://en.wikipedia.org/wiki/California_Department_of_Transportation" class="extiw" title="w:California Department of Transportation">California Department of Transportation</a>
<a rel="nofollow" class="external free" href="http://arcg.is/e0zr">http://arcg.is/e0zr</a>