NHER 14629 (Monument record) - Medieval to post medieval tunnels, possibly sewer or aqueduct

27 April 1978.
Brick arch reported in west face of north to south pipe trench along Blackfriars Road, but not on east side. 1.2m to 1.8m (4 to 6 feet) deep. Reported by [1] as 'tunnel from Gaywood Palace to Lynn' mentioned in legend. Not on 1848 map of sewers.
Also reported by [2] who is aged about 80 and says that a man much older than himself dug up a tunnel on same line but 'veering towards Red Mount' when he was a boy, on land to east of road (now school playground). 1848 sewers map (see file at King's Lynn Museum) shows L-shaped reservoir on this land, running from Railway Lane (now Wyatt Street) to Blackfriars Road then north to Littleport Street where it disgorges into a tunnel to Fisher Fleet. Probably 'tunnel' found by boys was this reservoir after it had been covered over.
Arch in Blackfriars Road presumably an offshoot added after 1848.
E.M. James (KLM).

Note however open aqueduct running west from here to Blackfriars site on Bell's map of 1680 (S1) and Rastrick's map of 1725 (S2). Blackfriars had an aqueduct from Brookwell at Middleton, see (S1).
E. M. James (KLM), 30 September 1980.