Reply to "Size for Standard gauge tunnel portal, using Hellsgate bridge"

JushavnfunOGR Forum Member

Saw a picture of someone running a canary system through the Hellgate bridge, means it must be pretty big. By

I was thinking that the measurements of the Hellsgaye bridge entrance would be a good size. Should accommodate most anything.

Can anyone post the size please.

Thanks

4/3/204:55 AM

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