Record Details

NHER Number:13508
Type of record:Monument
Name:Martham Broad


Martham Broad is a flooded and infilled medieval peat cutting. A 19th century map shows that the broad was much larger in the past than it is now. In 1983 a series of undated timber posts were found as a new dyke was being cut. These could be medieval and associated with peat cutting or a former dyke. Alternatively they may have been part of a medieval/post medieval sluice.


  • Martham Broad is a flooded medieval peat cutting  © Norfolk Museums & Archaeology Service


Grid Reference:TG 457 203
Map Sheet:TG42SE

Full description

Medieval peat working.
See (S1).
Shown on inland portion of Admiralty chart 1957 (S2) (not revised since 19th century) as circular with large circular island in middle. This is probably an imaginative rather than an accurate representation.
E. Rose (NAU), 1979.

October to November 1983. Context 1 at TG 4565 2063, in new dyke dug as relief along northwest side of Hundred Stream on north side Martham Broad. Found by Anglian Water Authority excavator.
Substantial shaped, morticed and pegged timbers. Diving indicates more in situ.
See detailed reports (S3 to S5) by B. Ayers and A. Gregory (NAU) in file.
A. Gregory (NAU), 11 November 1983.

Broad shown as circular with large circular island in middle also on 1838 first edition 1 inch Ordnance Survey map (S6). Present peninsula at centre of broad could have been an island and banks could have encroached. Is this another case of a 'pleasure island' like Hickling and Catfield?
E. Rose (NLA), 6 March 1995.

Monument Types

  • PEAT CUTTING (Medieval - 1066 AD to 1539 AD)
  • REVETMENT (Medieval to 19th Century - 1066 AD to 1900 AD)
  • SLUICE (Medieval to 19th Century - 1066 AD to 1900 AD)
  • STRUCTURE (Medieval to 19th Century - 1066 AD to 1900 AD)
  • FLOOD DEFENCES (Post Medieval - 1540 AD to 1900 AD)

Associated Finds

  • WORKED OBJECT (Undated)

Protected Status - none

Sources and further reading

---Map: Finder's Map..
---Record Card: NAU Staff. 1974-1988. Norfolk Archaeological Index Primary Record Card.
---Illustration: Unknown. Sketch drawings of timbers found at Martham Broad.. Paper.
---Secondary File: Secondary File.
---Photograph: CKW (timber).
<S1>Monograph: Lambert, J.M. & Jennings, J.N.. 1960. The Making of the Broads: A Reconsideration of their Origin in the Light of New Evidence..
<S2>Map: 1957. Admiralty Map.
<S3>Unpublished Document: Ayers, B.S.. 1983. Site at entrance to Martham Broad West of Horsey to East Somerton Road.
<S4>Unpublished Document: Gregory, A.. 1983. Site report.
<S5>Unpublished Document: Gregory, A.. 1983. Worked Timbers from Martham Broad, Norfolk.
<S6>Map: Ordnance Survey. 1824-1836. Ordnance Survey First Edition 1 inch..

Related records - none

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