Allegheny River Lock and Dam No. 9
00000403
Allegheny River Navigation System MPS
EVENT
ARCHITECTURE/ENGINEERING
LATE 19TH AND 20TH CENTURY REVIVALS
York Engineering & Construction
TRANSPORTATION
MARITIME HISTORY
ARCHITECTURE
ENGINEERING
1900-1924
1925-1949
1937
1938
STRUCTURE
National Register of Historic Places Collection
pdf
22151
4/21/2000
National Register of Historic Places
State: Pennsylvania
County: Armstrong County
Widnoon ; Terminus of PA 1004, 0.2 mi. N of T488
Historic
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