08-30-2019, 10:30 PM
18 other photos
https://loc.gov/pictures/search/?q=Photo...20=%20true
...and one of a single arch that I will try to get somewhat correct depending on my layouts geometry.
![[Image: 082111pr.jpg]](https://cdn.loc.gov/service/pnp/habshaer/md/md0800/md0802/photos/082111pr.jpg)
![[Image: 082112pr.jpg]](https://cdn.loc.gov/service/pnp/habshaer/md/md0800/md0802/photos/082112pr.jpg)
![[Image: 800px-Thomas-viaduct-2011.jpg]](https://upload.wikimedia.org/wikipedia/commons/thumb/d/d0/Thomas-viaduct-2011.jpg/800px-Thomas-viaduct-2011.jpg)
The main design problem to overcome was that of constructing such a large bridge on a curve. The design called for several variations in span and pier widths between the opposite sides of the structure. This problem was solved by having the lateral pier faces laid out
https://loc.gov/pictures/search/?q=Photo...20=%20true
...and one of a single arch that I will try to get somewhat correct depending on my layouts geometry.
The main design problem to overcome was that of constructing such a large bridge on a curve. The design called for several variations in span and pier widths between the opposite sides of the structure. This problem was solved by having the lateral pier faces laid out