Buffalo Flats Floodplain Restoration
The Buffalo Flats Floodplain Restoration project is located east and adjacent to the city of Union, Oregon
and within the Catherine Creek Watershed. The Project Area includes approximately 240 acres of the
historic floodplain of Catherine Creek and Little Creek as they enter the Grande Ronde Valley. The
proposed project area is in private ownership and has been in agricultural operations over the last
century. The project is currently in the initial planning and feasibility determination phase.
We recognize the complexity of the natural river system and the need to minimize potential for impacts
from actions on nearby areas, and will carefully consider the ramifications of design alternatives on the
local community. The project will be designed to not increase the risk of flood damage or flood water elevations from the existing conditions on neighboring properties and structures and will maintain the utility of existing infrastructure.
The combination of restoration actions will be designed to meet the following project goals:
The table below describes the expected activities for each design milestone by functional area (design,
funding, permitting, public outreach):
Project Design Milestones
Little Creek is in the design phase and further along in the planning process; Catherine Creek is still in the feasibility determination phase. Additionally, the District is working with water users, irrigators and landowners downstream of the Buffalo Flats Project area to implements the construction of new diversion structures and fish ladders on Little Creek. This concurrent project will update water delivery systems, decrease flood risk through the town of Union and also provide passage for all native aquatic species into the Buffalo Flats Project area.
Artists rendition of future conditions along lower Little Creek resulting from the Buffalo Flats Flooplain Restoration Project