Preparing for change on the coast

2011 video from Managing Coastal Change about 'an innovative scheme to recreate salt marsh'.

Leave the Lands to the mercy of the Thames

A Prospect of the Breach in Dagenham Level as it appeared Feb. 3 1707

Having given this Account of their Prostration let
us lastly enquire into the Manner how these Trees came 
to be interred, which is a difficulty more easy to be re-
solved than the last. And this I take to be from the
gradual increase of the Mud, or Sediment, which every
Tide of the Thames left behind it. I presume those Trees
might be thrown down before the Walls or Banks were
made, that keep the Thames out of the Marshes; and
then those Trees were over-flown every Tide. And by
reason they lay thick, and near one another on the
ground, they would soon gather a great deal of the Se-
diment, and be soon covered therewith. And after the
Thames- Walls were made, every Breach in them, and
Inundation would leave great quantities of Sediment be-
hind it; as I by a troublesome Experiment found, in
going over some of the Marshes, soon after the late
preach, where I found the Mud, generally above my
Shoes,and in many places above my Knees. And it is
a practice among us (of which we have divers Instances)
that where a Breach would cost more to stop, than the
Lands over-flown will countervail, there to leave the
Lands to the mercy of the Thames; which by gradu-
ally growing higher and higher, by the Additions of
Sediment, will in time shut out the Water of the River,
all except the biggest Tides. And these Lands they call
Saltings, when covered with Grass; or else they become
Reed-ground &c.

From Observations concerning the Subterraneous Trees in Dagenham, 
and Other Marshes Bordering upon the River of Thames, in the
County of Essex. By the Revd. Mr. W. Derham, Rector of Upminster
in the Same County, and F. R. S. (January 1, 1753) published in the
Philosophical Transactions of the Royal Society

the sea lends large

A Map of Marsh-land in Norfolk (c.1700)  by Sir William Dugdale

And the sea lends large, as the marsh: lo, out of his plenty the sea
Pours fast: full soon the time of the flood tide must be:
Look how the grace of the sea doth go
About and about through the intricate channels that flow
      Here and there,
      Everywhere,
Till his waters have flooded the uttermost creeks and the low-lying lanes,
And the marsh is meshed with a million veins,
That like as with rosy and silvery essences flow
    In the rose-and-silver evening glow.
                Farewell, my lord Sun!
The creeks overflow: a thousand rivulets run
’Twixt the roots of the sod; the blades of the marsh-grass stir;
Passeth a hurrying sound of wings that westward whirr;
Passeth, and all is still; and the currents cease to run;
And the sea and the marsh are one.
How still the plains of the waters be!
The tide is in his ecstasy.
The tide is at his highest height:
                And it is night.

from The Marshes of Glynn (1878) by Sidney Lanier

Impervious and quaking

An Essex Marsh by Charles Henry Baskett

"Hope and the future for me are not in lawns and cultivated fields, not in towns and cities, but in the impervious and quaking swamps."

from Walking (1863) by Henry David Thoreau