06/03/2026
BRI AND DIXON WATER FOUNDATION
BRI has been doing riparian habitat work on the Mimms Ranch since 2025. With the assistance from the Alamito Creek Conservation Initiative (ACCI) and the Dixon Water Foundation, we have constructed 10 media lunas and 12 brush weirs (wooden filter dams). The logger units were placed in 2025 and will remain until 2027.
WHAT ARE LOGGER UNITS?
Recording devices collect data on the soil temperature (placed in the top 2 inches) and the amount of water in the soil (placed 6 inches deep) at different moments in time. The loggers take readings at different times of the day over the course of the year. This allows us to record long-term data while also looking into daily fluctuations. With water being the most limiting resource in arid environments, understanding how much water is in the soil and how long it stays there is imperative to making land stewardship decisions and influences how the landscape can be utilized.
WHAT ARE WOODEN FILTER DAMS?
Wooden filter dams are built using wooden posts and woven with tree branches. We placed these structures on the northwest corner of the ranch in the south fork of Alamito Creek. These structures are installed across the channel to help stabilize the streambanks and prevent further incision, while improving water availability. These structures are intended to slow and spread water onto the floodplains.
WHAT ARE MEDIA LUNAS/HALF MOONS?
Media lunas are crescent-shaped rock structures built to intercept “sheet flow”, a slow-moving and shallow form of runoff that causes a large amount of surface erosion to occur across the upland landscapes. By catching this sheet flow, the media lunas capture sediment and increase water infiltration.