Description and History of Site:-
The very fine access bridge to Neasham Hall was built at Eryholme in 1909 by Thomas Wrightson owner and MD of the Thornaby firm of Head Wrightson & Co. Ltd. It is a three span continuous lattice girder bridge of varying depth with a 30.48m central span and two side spans of 15.24m. A continuous girder extends over a number of spans and so the load applied to one span affects the other spans. By a judicious choice of the location of the supports the bending moment at the middle of the centre span can be reduced in comparison with that of a simply supported span. This was a very advanced design for the period. The rolling marks indicate that the steel sections were rolled by Dorman Long & Co. Ltd. of Middlesbrough. This bridge remains in private ownership.

Further Reading and References:-
Morris C.H. 2000. Bridges over the Tees. Cleveland Industrial Archaeologist Society. Research Report No 7.

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Key Words :- river tees bridge

Viewing the Site :- Privately owned no public access

Address :- Eryholme, Darlington, North Yorkshire, DL2 2PG
Grid Ref :- NZ 32573 09345
Co-ordinates :- Lat 54.478421 , Long -1.498820
Local Authority :- Richmondshire District Council
Pre 1974 County :- Yorkshire - North Riding
Site Status :- Listed - Grade II
Historic England List No - 1299423,
Site Condition :- Operational site, in use for original purpose
Site Dates :- 1909 - current
Record Date :- 19 January 2016

Copyright :- cc-by-nc-sa 4.0 © Charles Morris