High Bridge - Bridge ID Number?

[NW Mailing List]

Harry - 

Might that Mobil thingy hark back to the days when N&W didn’t paint bridges – they greased them?

EdKing

From: NW Mailing List via NW-Mailing-List 
Sent: Wednesday, October 15, 2014 9:52 AM
To: nw-mailing-list at nwhs.org 
Subject: Re: High Bridge - Bridge ID Number?


Can't speak to the "P-84" symbol, but
I didn't know Mobil had gone into the
paint business.  Maybe they have, but
thought Mobil was in the petroleum 
industry.

In the 60s and 70s, environmentalists
took a pretty strong position against
blasting lead-based paints off bridges.
Maintenance of Way forces would spread
tarps below the bridges to capture the
paint particles. Then there was the
problem of disposing of the spent paint. 

N&W experimented with greasing bridges.
Results left a lot to be desired.  In
hot weather, the steel would heat and
the grease would drip off.  In one
instance, the paint dripped off the
Whiskey Run viaduct at Rook Yard 
(Pittsburgh), landed on the free way to
the airport and caused motorists to
skid.

Maybe Mobil has come up with a petroleum
product that doesn't drip.  Harry Bundy




--------------------------------------------------------------------------------
________________________________________
NW-Mailing-List at nwhs.org
To change your subscription go to
http://list.nwhs.org/mailman/options/nw-mailing-list
Browse the NW-Mailing-List archives at
http://list.nwhs.org/pipermail/nw-mailing-list/
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://pairlist6.pair.net/pipermail/nw-mailing-list/attachments/20141015/4628001b/attachment.html>