does anyone know where i can find photos and dimensions of tunnel portals made of stone/brick around the early 1900's. Especially usefull would be the dimensions and photo of a double (2 lane) tunnel portal
thanks
thanks
tunnel portal specs/photos of early 1900's
- Thread starter hephaest
- Start date
Hi hephaest - there are several sources for this kind of information.
1. For a specific RR, try a book about that RR. You can derive pretty close measurements of the portal by comparing it to other things in the photo that are a known size - for example workers posed around the portal or the train coming thru it.
2. If you're impatient like me do a Google image search - www.Google.com for "tunnel portal" I just tried it and it turned up lots of images. Then.....
3. For required clearances, check the NMRA. This will give you minimum required height and width, which will be a quite accurate guide to sizes. Blasting through rock was expensive, and real RRs didn't make their tunnels any bigger than they had to.
Of course in the early 1900s, rolling stock was a lot smaller than it is now, both in length and height (no massive autoracks back then!) so clearance is definitely related to the era.
4. Buy a model portal and use it for dimension.
Hope this helps.
Val
1. For a specific RR, try a book about that RR. You can derive pretty close measurements of the portal by comparing it to other things in the photo that are a known size - for example workers posed around the portal or the train coming thru it.
2. If you're impatient like me do a Google image search - www.Google.com for "tunnel portal" I just tried it and it turned up lots of images. Then.....
3. For required clearances, check the NMRA. This will give you minimum required height and width, which will be a quite accurate guide to sizes. Blasting through rock was expensive, and real RRs didn't make their tunnels any bigger than they had to.
Of course in the early 1900s, rolling stock was a lot smaller than it is now, both in length and height (no massive autoracks back then!) so clearance is definitely related to the era.
4. Buy a model portal and use it for dimension.
Hope this helps.
Val
thanks val
Il try the google route first
maybe i will go to an online store and look for dimensions of the portals they have for sale
Il try the google route first
maybe i will go to an online store and look for dimensions of the portals they have for sale
I doubt if the info you need would be posted. Try going to a "real" store with a ruler in you pocket (or just buy one - they can't be that much).hephaest said:thanks val
Il try the google route first
maybe i will go to an online store and look for dimensions of the portals they have for sale
Val - for photos, try going here. You will have to reg. with them but you find that have something like a total of 75,000 photos of trains and a lot are in tunnels. you can do a search for the time period that you want. Last night I copied and saved over 250 steam engines and a lot were in and comming out of portals.
http://www.railpictures.net/
http://www.railpictures.net/