ophis: twin culverts under MBTA Greenbush line
ophis: culvert under MBTA Greenbush line
ophis: head of navigation
ophis: clapper valve
ophis: head of navigation
ophis: water gate
ophis: fish ladder
ophis: Maura
ophis: re-entering Greenbush line culvert
ophis: re-entering Greenbush line culvert
ophis: abandoned bridge
ophis: looking N toward old incinerator
ophis: power lines crossing to Hingham at rear
ophis: smokestack and pylons
ophis: Maura