skip to Main Navigation
skip to Main Content
skip to Footer
NC State University Libraries Logo
Rare & Unique Digital Collections
See search box
Search...
Search
About
Contact
« Previous
Next »
A-Z Sort
Numerical Sort
Subject
×
Covered bridges
✖
[remove]
28
Historic sites
28
National Register of Historic Places
25
National Civil Engineering Landmark
22
Wooden bridges
22
Joists
5
Rafters
5
Beams (Structural elements)
4
Siding (Building materials)
1