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T&D > Programs Areas > Engineering > Aquatic Organism Passage at Road-Stream Crossings Program Areas
Engineering

Aquatic Organism Passage at Road-Stream Crossings

Alan Yamada, Program Leader

Kim Clarkin, Project Leader

The design, construction and maintenance of the road crossing shall not disrupt the migration or other movement of those species of aquatic life inhabiting the water body.

-BMP 6vii required for exemption from Clean Water Act Section 404 Permit Requirements (40 CFR 232.3)

Other Legal Highlights

Olympic torrent salamander from the Olympic National Park website
Olympic torrent salamander (Olympic Nat'l Park website)

Lolo NF culvert
Stream simulation culvert at Surveyor Creek, Lolo NF, 2007