Substructure Maps and Sewer Maps

https://pw.lacounty.gov/mpm/substructure/

Zoom into the location/address that you are trying to obtain substructures for and click on the box that the location is within.  If it is a stretch of road or area that is larger than one box, you will need to open each box with the process above for each DC-*** map that you are looking for.

https://dpw.lacounty.gov/smd/sewernetwork/

Use the interactive map to find the location (address/general area) of the sewer map you are looking for.  Left click on the location near your desired address and a box with View Map and View Overlay will appear.  Click the View Overlay button.  A PDF should appear.  Note the letter and numbers associated with the address or areas you are looking for.

https://dpw.lacounty.gov/smpm/landrecords/SewerPlans.aspx

Click on the corresponding letters (P.C., C.I, etc.) and then the map number (Book 06500, Book CI1500, etc).