WCT Multi-state Assessment 



February 10,2003 



population distribution mapping identify other significant barriers (e.g. natural short-term and/or anthropogenic 

 barriers) locations (as points in ARCVIEW), including barrier type (Table 4), blockage extent (Table 5), and 

 barrier significance (Table 6). Identify only those barriers that are believed to have a significant influence 

 cutthroat distribution or population integrity. Barrier identification is the first action taken in parts 1 and 2 of 

 the assessment. 



Table 4. Look-up table for types of barriers to fish movement upstream. 



Table 5. Look-up table for extent of blockage caused by barriers. 



Blockage Extent 



Complete 



Partial 



Unknown 



Table 6. Look-up table for barrier significance. 



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