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Install manhole per day with precast sections
Use of precast concrete manholes and vaults of precast slabs by Duke Power Co in underground installations in downtown areas of 10 communities; installations cost slightly less than poured-in-place vaults and manholes and minimize traffic disruption time; photographs illustrating various steps in installation.
Install manhole per day with precast sections
Use of precast concrete manholes and vaults of precast slabs by Duke Power Co in underground installations in downtown areas of 10 communities; installations cost slightly less than poured-in-place vaults and manholes and minimize traffic disruption time; photographs illustrating various steps in installation.
Install manhole per day with precast sections
Elec World
Umberger, J.C. (author)
Electrical World ; 169
1968
4 pages
Article (Journal)
English
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