The
bridge at Brault along with the locks system just up river from the bridge is
the last of the water management constructions on the Marais
Poitevin. Since the 13th century Brault was the deep water port for
Marans. Passage between the flourishing regions of Aquitane and Poitou was
the reason this port built on a rocky outcrop became so important.
Today
it's functions continues as some 800 pleasure craft are logged in by the two
resident lock keepers, at the ecluses just up river from the bridge, who's role
extents to flood management. The waters are constantly monitored and controlled
by close coordination with the large dams upstream.
The River Sevre Noirtaise is close to its estuary here, swelled by
the arrival of water from ten discharge channels, the river has just passed the
last tidal gate before now passing under the bridge and discharging in to the Anse de l'Aiguillon and the ocean.