Seven existing road crossing structures at streams in Massachusetts were evaluated hydraulically and compared to hypothetical alternative structures designed for Aquatic Organism Passage (AOP) using standards developed by the Massachusetts River Contin
Zarriello, Phillip J. pzarriel@usgs.gov,Barbaro, Jeffrey R. jrbarbar@usgs.gov. Hydraulic assessment of existing and alternative stream crossings providing fish and wildlife passage at seven sites in Massachusetts. 2014-01-01.