Re: Fwd: New Orleans, LA: New Orleans RTA closes streetcar line for catenary work
  Mal Rowe

On 09/07/2019 00:21, Greg Robinson wrote:
> Judging by what I have seen in Dandenong Rd and PallMall in Bendigo the centre poles seem to last about 100 years.

>

I'm sure that proximity to salt water reduces the lifespan.  The pole pictured in the attached image had to be removed due to corrosion at the base not long after I made the pic.

Original poles were painted (usually with am aluminium paint) but not otherwise treated for corrosion resistance.  Modern poles are galvanised steel.

I doubt that electrolysis would play a part; no-one with any sense would allow a 'hot pole' to stay in use.

Mal Rowe - by the sea in Saanich


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111-1971-pole MangroveLoop August2012  |  1444W x 1050H  | 298.23 KB |  Photo details