Bridge construction, circa 1921-1941. Man standing in foreground on railroad tracks with construction equipment. Concrete bridge in background with four concrete piers and concrete deck spanning them. Built over railroad tracks. Wooden falsework surrounding two middle piers. Men working on falsework. Taken from alongside railroad tracks
Cont. 1518, 40-B-564-A. Taken by J.B. Manson 9-11-37. Looking down on completed form for N. wing foo...
At left, crane shown preparing to lift girders, with several construction workers standing on railro...
Circa 1921-1941. Steel through-truss bridge shown being constructed by crane. Most of the beams comp...
Bridge construction, circa 1921-1941. Multiple concrete piers are shown from a centerline view. A tr...
Bridge construction, circa 1921-1941. Multiple concrete piers with concrete deck spanning them are s...
Men operating four pieces of construction equipment, one of which is a tracked vehicle, circa 1921-1...
Men operating two construction vehicles, one which is a tracked vehicle, circa 1921-1941
Circa 1921-1941. Construction shown of steel multi-span railroad bridge composed of pony-truss and t...
Contr. 383. April 1931. Over South Shore Michigan City. Wooden falsework shown under concrete beam b...
Circa 1921-1941. Steel through-truss bridge shown on concrete pier with falsework below. Two men in ...
Taken by Mr. Wooley. U.S. Bureau of Roads. Stamp on back: ""Seamans Master Photo [�] Dec. 26, 1936."...
66' Steel truss, circa 1921-1941. Bridge construction. Pony-truss bridge crossing stream shown with ...
Girders for bridge deck shown spanning several concrete piers over railroad tracks. Train is shown o...
Circa 1921-1941. Deep River on #6 N. Hobart Ind. Rail track shown from centerline extending to the b...
8. Cont. 1518, 40-B-464-A, Wabash River Str. Terre Haute. Taken by J.B. Manson, 6-11-37. Looking eas...
Cont. 1518, 40-B-564-A. Taken by J.B. Manson 9-11-37. Looking down on completed form for N. wing foo...
At left, crane shown preparing to lift girders, with several construction workers standing on railro...
Circa 1921-1941. Steel through-truss bridge shown being constructed by crane. Most of the beams comp...
Bridge construction, circa 1921-1941. Multiple concrete piers are shown from a centerline view. A tr...
Bridge construction, circa 1921-1941. Multiple concrete piers with concrete deck spanning them are s...
Men operating four pieces of construction equipment, one of which is a tracked vehicle, circa 1921-1...
Men operating two construction vehicles, one which is a tracked vehicle, circa 1921-1941
Circa 1921-1941. Construction shown of steel multi-span railroad bridge composed of pony-truss and t...
Contr. 383. April 1931. Over South Shore Michigan City. Wooden falsework shown under concrete beam b...
Circa 1921-1941. Steel through-truss bridge shown on concrete pier with falsework below. Two men in ...
Taken by Mr. Wooley. U.S. Bureau of Roads. Stamp on back: ""Seamans Master Photo [�] Dec. 26, 1936."...
66' Steel truss, circa 1921-1941. Bridge construction. Pony-truss bridge crossing stream shown with ...
Girders for bridge deck shown spanning several concrete piers over railroad tracks. Train is shown o...
Circa 1921-1941. Deep River on #6 N. Hobart Ind. Rail track shown from centerline extending to the b...
8. Cont. 1518, 40-B-464-A, Wabash River Str. Terre Haute. Taken by J.B. Manson, 6-11-37. Looking eas...
Cont. 1518, 40-B-564-A. Taken by J.B. Manson 9-11-37. Looking down on completed form for N. wing foo...
At left, crane shown preparing to lift girders, with several construction workers standing on railro...
Circa 1921-1941. Steel through-truss bridge shown being constructed by crane. Most of the beams comp...