The Lower Penitencia Creek Improvements Project is located within the City of Milpitas. The project’s study limit extends approximately one mile from the north at its confluence with Coyote Creek to the south at San Andreas Drive. (Download Project Fact Sheet)
The one mile study limit is indicated on the map to the right. This area of creek receives some of its water from Berryessa Creek. Construction has begun on improvements to Berryessa Creek that will bring more creek flows into this one mile stretch of creek. Lower Penitencia Creek must be able to carry this increased flow.
In its current condition, Lower Penitencia Creek does not have the capacity to convey the increased flow (the future one-percent flood event - also known as the 100 year event*). This project is necessary to maintain the current existing Federal Emergency Management Agency (FEMA) accreditation along the east levee located between California Circle and Berryessa Creek. At the completion of the project improvements for the Lower Penitencia and Berryessa Creek Projects, the Santa Clara Valley Water District will update the FEMA flood insurance maps accordingly.
*A 100-year flood, sometimes called a one-percent flood event, is a rare and large storm event which has a 1-in-100 chance of occurring in any given year.
The project team analyzed a range of alternatives and selected the staff-recommended alternative. The Planning Study Report has been completed and design phase is in progress. The PSR can be viewed by clicking here
On March 10, 2015, the water district board of directors awarded a consultant agreement for the development of the Environmental Impact Report for the Lower Penitencia Creek Improvements Project.
The water district filed a Notice of Preparation of a Draft Environmental Impact Report for the project. The review period was from June 12 through July 11, 2015. The document can be viewed by clicking here.
Project alternatives were presented to the community in 2014. The following information was shard at the meeting: