Clackamas Water Environment Services (WES) is launching a project in the Rose Creek Natural Area to improve water quality, stabilize the stream channel, restore habitat, and enhance community amenities.
In the Sunnyside Village neighborhood of Clackamas County, Rose Creek flows through the natural area owned by WES, then into Sieben Creek and eventually to the Clackamas River. The natural area is bound to the east by SE 152nd Drive, to the south by the Frontier Estates neighborhood, to the west by Sieben Park, to the northeast by Oregon Trail Elementary School, and to the northwest by commercial properties on SE Hines Drive.
Stormwater runoff from surrounding development has degraded and eroded Rose Creek over time. This erosion has created steep, unstable streambanks and impacted wildlife habitat and overall stream health. Stabilizing and restoring the stream and improving stormwater management will prevent further stream channel degradation, reduce downstream flooding, and improve habitat and water quality. Currently, some stormwater detention pipes in the project area sit in private backyards, making maintenance challenging for WES. WES is exploring opportunities to relocate these facilities to support long-term sustainability and improve maintenance access. Other items under consideration include education opportunities and interpretive features along the Rose Creek trail since the natural area attracts pedestrians and has hosted collaborations between Oregon Trail Elementary School, Friends of Trees, and North Clackamas Parks and Recreation District. These trail routes may be adjusted as needed to accommodate other improvements with the intent to maintain equivalent access to the area long-term.

Existing conditions including project boundaries, contours, tax lots, trails, the pedestrian bridge, stream, wetland, and storm pipe. Image also shows a potential trail reroute, stormwater reroute, new stormwater treatment and detention areas, and stream stabilization that WES is considering.
WES identified this project in the Storm System Master Plan (SSMP) in 2022, which prioritized stormwater system improvements and stream restoration for Rose Creek. The project is currently at the beginning of the design process, which includes site investigation, conceptual planning, development of alternative concepts, and selection of a preferred design concept. Following existing condition surveys of the stream, wetland, trees, and vegetation this spring, the project is entering the preliminary design phase this summer.
The current conceptual design phase of work will conclude by the end of 2026. Future phases would begin soon after and include full design, permitting, and construction of the proposed improvements.