Roseville acquired the property in 2004 as a critical way to reduce flood risk in the watershed.
Retention basins are necessary and exist around Roseville and throughout the region. In fact, you may have seen these types of facilities and not even realized the essential role they play in flood protection. See the photo example below.
During storms, water will be diverted from Pleasant Grove Creek and University Creek, and their tributaries, into north and south flood basins. Stormwater will be retained in these two basins until high water flows are reduced. Stored water will then be discharged into Pleasant Grove Creek.
The basins will have the appropriate capacity to mitigate for City of Roseville development, and potentially select developments within Placer County (*via Memorandum of Understanding, currently in process).
The project is also envisioned to provide enhanced riparian, wetland, and upland habitats, as well as passive recreation areas.
The project reflects Roseville’s commitment to long-range planning and responsible growth over the last 35+ years. The civic improvements play an important role in meeting Roseville’s public safety, environmental, and community service goals.
Learn more about other City projects in the vicinity.
The project area is shown in light blue on the map below.
Learn more about other long-planned projects in the area.
The public had an opportunity to learn about the planned facility, ask questions, and provide feedback on the project’s scope as the environmental study phase begins. Watch and learn about environmental studies.
If you weren't able to attend the first open house, check out the meeting exhibits below.
- Preliminary project layout
- Neighborhoods near the project site
- Project in relation to nearby watersheds
- Project site photos and renderings
- Typical section
- Existing facilities and photos
- Estimated project timeline
A program-level Environmental Impact Report (EIR) based on the conceptual design was certified in 2003 (State Clearinghouse No. 2002072084). Now that the City has more detail about the needs and scope of the project, it is now preparing a Subsequent EIR (SEIR). An SEIR is prepared when information from a certified EIR is still relevant and provides informational value, but there have been substantial changes to the project or circumstances under which the project is undertaken, or if there is new information that was not known at the time the EIR was completed, which would require major revisions to the EIR.
The City has kicked off the preparation of the SEIR and is now seeking public input on the project and environmental concerns. A Notice of Preparation (NOP) containing additional project information was published. A public meeting to discuss the project and scope of the SEIR has been scheduled on October 22, 2024 from 5 to 7 p.m. at the Martha Riley Library located at 1501 Pleasant Grove Boulevard. Comments on the SEIR are being accepted until November 1, 2024. See the NOP for additional information.
View City environmental documents.
Learn more about environmental studies:
The total project cost is estimated at $79 million.
Since 1991, the City has been collecting fees on building permits within the watershed to help fund construction.
Additionally, grant funding is contributing to the project.
- Design and permitting: began spring 2024
- Design alternatives analysis: summer 2024 - spring 2025
- Open house and scoping meeting: October 22, 2024
- Draft Subsequent Environmental Impact Report (SEIR): fall 2024 - fall 2025
- Public hearing for Draft SEIR: fall 2025
- 60% design: summer 2025 - winter 2025
- Permitting: fall 2026
- 100% design: fall 2026
- Construction: 2027-2028
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For questions about the project, email us or call (916) 746-1300.
