Recently, the negative effects of stream crossing structures have come under closer scrutiny. Of the stream crossing structures, culverts are the most widely installed and have the most severe impacts on the surrounding stream habitat and biota. Past research and management efforts have focused solely on stream crossing inventory programs or have prioritized the conservation of charismatic commercial and recreationally valuable fish species. With the growing emphasis on the importance of maintaining biodiversity, it is essential to determine how stream crossing structures are affecting entire stream fish communities. 

In this study, a stream crossing inventory was used to identify the extent of road/stream crossing problems. This was coupled with measurements of stream characteristics. Additionally, backpack electrofishers were used downstream and upstream of a stream crossing to quantify stream fish assemblages.


In the proposed research I will study how road/stream crossing structures affect stream fish communities. More specifically, I will determine if culverts impede upstream fish passage.