Welcome to District Five's Postmile Book
 
 

What is a Postmile Marker?


A postmile marker is a metal paddle placed along the state highway. Each marker is stenciled with the route, county, and postmile at that location. 

Listed in miles, postmile values usually increase from south to north or west to east depending upon the general direction the route follows within the state. The postmile values increase from the beginning of a route within a county to the next county line.  The postmile values start over again at each county line.

Enforcement officers, maintenance forces and others use the postmile markers in the field to locate specific incidents or features with reference to the postmile system. 


 
 

LEGEND:

*
  Signalized Intersection
R
Realignment
M
Realignment of a Prior Realignment
N
Realignment of M Mileage
C
Commercial Lanes Paralleling Main Highway
D
Duplication (due to meandering County Line)
G
Reposting Duplicate PM at End of Route
H
Realignment of Duplication
T
Temporary Connection
S
Spur
L
Overlap Due to Correction or Change
 
NOTES:

For Santa Cruz County there is generally a difference between the actual postmile location and the location of the postmile markers in the field. These postmile markers have been in place since 1964 and the accident and highway data have been referenced to them. Due to this long history, the postmile markers will remain unchanged in the field and continue to be used as in the past.
 
 

UPDATES:

All the new information and changes will be posted, on the index page, with the change date so you can easily see what’s new and replace your old pages off our web site. This will keep your Postmile Book current without the cost of publication every year.  You can also reproduce the whole Postmile Book off the web.  The image below is a color cover for your Postmile Book.

POSTMILE BOOK INDEX

Please notify Steve Cadenasso of any errors at:

 Steve Cadenasso@dot.ca.gov
 

 

US DOT

Caltrans

District 5

District 5 Traffic
 
 
 
 

E-mail:Traffic Webmaster
with comments, complaints or questions.
Revised on 2/11/00