Category:Historic American Engineering Record

• Historic American Engineering Record by state (50 C)
• Historic American Engineering Record in Washington, D.C. (1 C, 21 P)

+

• Historic American Engineering Record in insular areas of the United States (3 C)

B

• Lists of bridges documented by the Historic American Engineering Record (52 P)

H

• Historic American Engineering Record in the former Panama Canal Zone (2 P)

T

• Lists of tunnels documented by the Historic American Engineering Record (11 P)

H

• Heritage Documentation Programs