Caltrans 12 (Santa Ana)
(California Department of Transportation, District 12)
0N540 RTE 405 Red Hill OC - 0N540
NOE - Notice of Exemption
Removing existing retaining walls on top of the fill and replace them with 4 retaining walls to piles adjacent to and at the bottom of the slope. New fill, pavement, sidewalks, and landscape. Utilities temporary relocated and existing underground utilities vault will be bigger. Estimated 5 month closure for Red Hill Ave Overpass.