A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
McNary dam results in tough bridge-raising job
1/2-mi long railway bridge over Columbia River on Northern Pacific line was shifted 41 ft to new piers and then raised 4 ft 2 in. above its old level without undue interference with train schedules; 500-ton trusses were raised in 10-in. increments by use of hydraulic jacks of 115-ton capacity by jacking up first one corner of span 1 1/2 in. and then raising other one twice that distance. (See also Ry Age v 137 n 20 Nov 15 1954 p 58-61; Compressed Air Mag v 60 n 3 Mar 1955 p 64-7)
McNary dam results in tough bridge-raising job
1/2-mi long railway bridge over Columbia River on Northern Pacific line was shifted 41 ft to new piers and then raised 4 ft 2 in. above its old level without undue interference with train schedules; 500-ton trusses were raised in 10-in. increments by use of hydraulic jacks of 115-ton capacity by jacking up first one corner of span 1 1/2 in. and then raising other one twice that distance. (See also Ry Age v 137 n 20 Nov 15 1954 p 58-61; Compressed Air Mag v 60 n 3 Mar 1955 p 64-7)
McNary dam results in tough bridge-raising job
Ry Track Structures
Hoving, J.E. (author)
1954
4 pages
Article (Journal)
English
© Metadata Copyright Elsevier B. V. All rights reserved.
McNary dam results in tough bridge-raising job
| Engineering Index Backfile | 1955
McNary dam results in tough bridge-raising job
| Engineering Index Backfile | 1954
| Engineering Index Backfile | 1953
Large scale construction at McNary
Engineering Index Backfile | 1949
Engineering advancements at McNary project
| Engineering Index Backfile | 1955