CRAS
The District developed the Creek Restoration Action Strategy (CRAS) to prioritize creek reaches, sub-reaches, or sites, in need of stabilization and/or restoration.
The District identified eight categories of importance for project prioritization:
Tier I (measurable variables)
- Infrastructure risk
- Erosion and channel stability
- Ecological benefits
- Water quality
Tier II (socio-economic variables)
- Project cost
- Partnership opportunities
- Watershed benefits
- Public education
These categories were scored using methods developed for each category based on a combination of published studies and reports, erosion inventories, field visits, and scoring sheets from specific methodologies. Final tallies of scores for each category, using a two-tiered ranking system, were used to prioritize sites for restoration/remediation.
Creek Assessment
Staff evaluate streams on a rotational basis or as needed in relation to a concern or proposed projects. Streams are assessed in sections called reaches. Each reach is further divided into subreaches. Open the files below to view the reaches and subreaches.
Map of creek reachesMap of creek subreachesMap of Restoration Priorities
Each year staff reassess a portion of creek subreaches to updated their CRAS scores. The higher the score, the more severe the condition of the creek subreach. The map below shows subreaches color-coded by condition with black being the worst condition. A high CRAS score informs the District's decision to plan and implement an improvement project for that section of creek.
