VESTRA currently is in the final stages of completing two related projects in support of total maximum daily load (TMDL) development for the Scott River Watershed. The two projects, one funded by the North Coast RQWCB and the other funded by the California Department of Forestry and Fire Protection (CAL FIRE) are resulting in identification and mapping of landslide features with exportation of the features to GIS data sets for use in sediment modeling.

The VESTRA team worked closely with North Coast RWQCB staff and the US Forest Service (USFS) to develop a methodology for inventorying and integrating existing landslide data into a single GIS database. The database includes landslide features captured by the USFS, as well as landslide features identified by VESTRA staff using aerial photography.

VESTRA also compiled road features from a variety of sources and collaborated with North Coast RWQCB and CAL FIRE technical specialists to develop a GIS data structure that would support sediment production estimates using SEDMODL2.