Monument record MCC7041 - Triple Dyke, Colchester

Summary

The Triple Dyke, c.1km to the west of Lexden Dyke and c.2.8km west of the fortress and walled town, aligned N-S and plotted for c.1.5km in length from the River Colne (north) to Clairmont Road (south) and just north of Heath Road. Once thought to be pre-Roman in origin, it is now recognised that Triple Dyke was added to the dyke system after the Roman conquest to strengthen the line of Shrub End Dyke at its northern end. The Triple Dyke is marked on Chapman & Andre's 1777 map as 'Ancient Intrenchments'.

Location

Grid reference Centred TL 964 252 (288m by 1540m)
Map sheet TL92NE
Non Parish Area COLCHESTER, COLCHESTER, ESSEX

Map

Type and Period (1)

Full Description

Once thought to be pre-Roman in origin, it is now recognised that Triple Dyke was added to the dyke system after the Roman conquest to strengthen the line of Shrub End Dyke (MCC7467) at its northern end.<1>-<7>

A section was cut across the Triple Ditch in 1961, at Hunter's Rough c.200m N. of Lexden Road. The length of the section, measured across the width of the three ditches, was 37.2m. No evidence of the surviving banks was defined. The innermost or easternmost ditch was larger than the others, 5.5m wide x 2.1m deep. The central and western ditches were 5.3m and 5.5m wide and 1.8 and 2.0m deep respectively, leading to the suggestion that the easternmost ditch was an earlier ditch, belonging to Shrub End Dyke North with the other two ditches added later.<7>

The central ditch of the Triple Dyke was defined, and shown to be 5.4m wide (the base fo the ditch was not defined) by trial-trenched evaluation and monitoring during the groundworks for a new dwelling at 78 Straight Road in 2018.<8><9>

Sources/Archives (9)

  • <1> DESC TEXT: unknown. unknown. The Dykes.
  • <2> DESC TEXT: Colchester Museum. 1997. The Colchester Iron Age Dyke System - Task Plans.
  • <3> DESC TEXT: Colchester Museum. 1997. The Colchester Iron Age Dyke System - A Programme of Works.
  • <4> DESC TEXT: Colchester Museum. 1997. The Colchester Iron Age Dyke System - An Integrated Management Plan.
  • <5> Map: unknown. unknown. SMR.
  • <6> Serial: Hawkes, Christopher, F. C. & Crummy, Philip. 1995. CAR 11: Camulodunum II. 11. p.8, pp.51-52, 55-59, 170-171.
  • <7> Serial: Hawkes, Christopher, F. C. & Crummy, Philip. 1995. CAR 11: Camulodunum II. 11. pp.55-59, 107.
  • <8> Evaluation Report: Pooley Laura. 2018. The Triple Dyke: Archaeological evaluation at 78 Straight Road, Colchester, Essex, CO3 9DB. CAT Report 1253.
  • <9> Watching Brief Report: Pooley, Laura. 2018. The Triple Dyke: Archaeological monitoring at 78 Straight Road, Colchester, Essex, CO3 9DB. CAT Report 1283.

Finds (0)

Protected Status/Designation

  • None recorded

Related Monuments/Buildings (10)

Related Events/Activities (3)

Record last edited

Sep 11 2019 8:25AM

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