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|Collection:||Coins & Medals|
|Date:||1963 - 1963|
Part of the new road development programme for Birmingham undertaken during the 1960's, the Sixways Underpass was one of the first to use undersurface heating. Heating wires were cast into concrete road slabs and 240 volts of electricity were passed through them, two and a half inches below the surface. Electricity substations controlled the heating in response to surface temperature and moisture levels, switching on before conditions became dangerous. This system developed nationally into a lower voltage one passed through steel mesh, which required less maintenance and was easier to lay. This medal commemorates the opening of the underpass in 1963.
|Presented by Alderman E M Crosskey.|