Event archive

Event Organiser: ICE

Explore Engineering: Walled cities and castles of the north, Chester

  • Lecture
  • Chester
  • 21 June 2018
  • 18:00 - 20:30
Explore Engineering: Walled cities and castles of the north, Chester

About this event

The Institution of Civil Engineers (ICE) is celebrating its 200th birthday this year, but civil engineering has been around for thousands of years. Today we can still experience some great examples of early civil engineering; often however there is a need for conservation to ensure they are preserved for future generations.

Our speakers, Robert Thorniley Walker and Alice Bowers, have got an extensive knowledge of the (secret) roles that engineers play in the conservation of heritage structures, with examples ranging from the walls of Durham, Barnard Castle, Auckland Castle and Appleby Castle.

They will give a fascinating overview of the history of walled cities; discussing the development of York City Walls from Roman to recent times. In 1990, recordings were taken to ±2mm at 10m centres right round the 3.4km circumference. Since then, recent monitoring of relative vertical movements to ±0. 2mm has been carried out. Other work carried out to York's southern gate tower, Walmgate Bar, include:

  • Upgrading England's best barbican, now an airy promenade for visitors
  • Prevention of disproportionate collapse of the Elizabethan rear timber extension.
  • Controlled jacking to restore the original load paths
  • Creation of a tower terrace to provide the coolest of cafés

Please join us from 6pm for light refreshments, with the talk starting at 6:30. The Crowne Plaza hotel is close to Chester City Centre and approximately 10 minutes` walk from the main train station. Limited car parking is available at the hotel (£10, to be paid at reception), alternatively there are various pay and display car parks nearby.

Organised by Cheshire Branch in conjunction with HEG (Historical Engineering Group)

This is an Explore Engineering event and anyone is welcome to attend.


For more information, please contact:

Antje Budge
e: [email protected]


  • Robert Thorniley-Walker MA(Oxon) CEng CEnv FICE FIStrucE CIHT IHBC FRSA, Conservation Accredited Engineer (CARE)
  • Alice Bowers BEng MSc ICE IEng AIHBC

Event venue

Crowne Plaza Hotel Chester
Trinity Street
Chester CH1 2BD
United Kingdom

For more information please contact:

Janice Parkinson

e: [email protected]