The "lost" Walbrook River - a channel that divided the western and eastern parts of the city - may also be found.
Wetland loss has been caused by the Army Corps of Engineers channeling the Mississippi for flood control, with the result that all the sediment in the river is being lost over the continental shelf.
Divers are still searching the muddy Mississippi River, looking for those lost when the interstate bridge in Minneapolis collapsed last week.
The barges are moored across the river from the Carnival Triumph, the cruise ship that lost power in February and drifted in the Gulf of Mexico for days before being towed to Mobile for repairs.
On Sunday, like most other days, volunteers and officials used loudspeakers to give details of children and elderly who were "found" on the river banks, having lost their families in the crowd.
The bus swerved on a stretch of road, lost control and plummeted 400 metres from a cliff into the Sunkosi river, police told the BBC.
Since we are fresh from the Diamond Jubilee celebrations, and the Thames River pageant it is worth reminding ourselves of what has been lost since the 1977 Silver Jubilee.
Mr Roman said Romania had lost a lot of money since shipping was disrupted on the river.
In October 2012 the Dumfries group lost their world record to a team from Campbell River in Canada.
But the trust said the old canal route through Melksham had since been lost "under housing" and a new route using a short length of the River Avon would have to be built.
Besides the mice, researchers lost precious specimens and suffered damage to sensitive equipment from the blackouts and flooding from the nearby East River.
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