Public Notices

A public notice is the primary method for advising all interested parties of a proposed activity for which a permit is sought. Soliciting comments and information necessary to evaluate the probable impacts on the public interest. Public notices are also published to inform the public about new or proposed regulations, policies, guidance or permit procedures.  

Public Notices published by the Los Angeles District are posted on these three pages. There are two types of Public Notices; Regulatory and Project Public Notices. Comments are due by the expiration date of the public notice. 

Only comments submitted by email or in hard copy format through a delivery service, such as the U.S. Postal Service, can be accepted.   Comments must be submitted to the address listed in the public notice.

Public Notice Manager

408-SPL-2021-0010 Santa Ana River geotechnical borings

Published Feb. 19, 2021

Drill up to eight geotechnical borings in the riverbed of Santa Ana River, drilled down to a total depth of approximately 90 feet below existing grade.  Borings will be drilled using truck and/or track mounted hollow stem auger and/or rotary wash drill rigs.  Up to an additional eight geotechnical borings will also be drilled, which are not applicable to the Section 408 permission, but are applicable to Regulatory verification only.  The purpose of the project is to obtain key information needed to further design the proposed widening of the existing SR-91 Bridge that extends over the Santa Ana River as part of the proposed SR-91 Improvements Project between SR-57 and SR-55.