State Route 55 (I-5 to SR 91) Improvement Project
6 Documents in Project
Summary
SCH Number
2019099104
Lead Agency
California Department of Transportation, District 12
(DOT)
Document Title
State Route 55 (I-5 to SR 91) Improvement Project
Document Type
NOD - Notice of Determination
Received
Posted
7/3/2025
Document Description
The Project will add one general purpose lane to the SR 55 mainline in both directions between the interchanges with I-5 and SR 22. Improvements also include new retaining walls, realigning the median barrier, adding lanes to on- and off-ramps, and construction of a new bridge structure to accommodate relocation of an off-ramp. The Project corridor extends from postmiles 10.9 to R17.3 on SR 55 through the cities of Tustin, Santa Ana, Orange, and Anaheim, California.
Contact Information
Name
Aundrea Asbell
Agency Name
State Water Resources Control Board
Job Title
Environmental Scientist
Contact Types
Responsible Agency
Phone
Location
Cities
Anaheim, Orange, Santa Ana, Tustin
Counties
Orange
Regions
Southern California
State Highways
SR 55, SR 91, SR 22, I-5
Notice of Determination
Approving Agency
State Water Resources Control Board
Approving Agency Role
Responsible Agency
Approved On
Determinations
(1) The project will have a significant impact on the environment
No
(2a) An Environmental Impact Report was prepared for this project pursuant to the provisions of CEQA
No
(2b) A Mitigated or a Negative Declaration was prepared for this project pursuant to the provisions of CEQA
Yes
(2c) An other document type was prepared for this project pursuant to the provisions of CEQA
No
(3) Mitigated measures were made a condition of the approval of the project
Yes
(4) A mitigation reporting or monitoring plan was adopted for this project
Yes
(5) A Statement of Overriding Considerations was adopted for this project
No
(6) Findings were made pursuant to the provisions of CEQA
Yes
Attachments
Notice of Determination
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