Announcing DT&I (AA) Concrete Catenary Arches from Keystone Details

[Lemosteam]

Keep it coming guys!  Thank you for all the great info!  I have not been able to find a single thing, especially a picture with the trolley line and insulators up there!  As simple as that looks, these could be used for live overhead!

[OldEastRR]

From the photo it looks like there was a 4-track arch with only 2 legs.

[CNR5529]

Keep it coming guys!  Thank you for all the great info!  I have not been able to find a single thing, especially a picture with the trolley line and insulators up there!  As simple as that looks, these could be used for live overhead!

http://monroetalks.com/forum/index.php?topic=30484.0 There might be some extra info in here that could be of interest.

[Lemosteam]

From the photo it looks like there was a 4-track arch with only 2 legs.

Yes I noticed that but those are no longer extant, but i might be able to design a center piece.  it also looks like the other side is supported by a two track arch!

[CNR5529]

Here is another: https://macsmotorcitygarage.com/henry-fords-railroad/

[CNR5529]

Yes I noticed that but those are no longer extant, but i might be able to design a center piece.  it also looks like the other side is supported by a two track arch!

Yep, looks like they made the whole system modular, so a 4 track arch was made up of the same pillars and half arches as the 2 track arch, but with an added section in the middle. You should be able to draw up this elongated beam easily enough, based on what you already have.

[Lemosteam]

@CNR5529 ,

Yes I already offer two and four track designs, just with a pole inbetween like the one in my picture.

The one in the old picture from you appears to fully span at least for tracks with NO pole in the middle, I think I could stretch it out butr it will get expensive!.

Aslo, THANK YOU for that great forum link!!!