Folder PCA0002-1b
Container
Contains 80 Results:
Gulkana River: The decision to abandon the buried concept because of construction difficulties was made last October, and the pipeline builders were given the challenge to design, construct and complete a bridge crossing before may, 1976 (after which date, river construction activity could damage fish habitat)., 1976-05
Item — Folder: PCA0002-1b
Identifier: PCA0002-1b-11
Scope and Contents
PC6188-9
Dates:
Issued: 1976-05
Gulkana: An acceptable site for the bridge crossing had to be found, which ended up being one mile downstream from the original crossing site., 1976-05
Item — Folder: PCA0002-1b
Identifier: PCA0002-1b-12
Scope and Contents
PC6193-14
Dates:
Issued: 1976-05
Gulkana: An engineering firm--R&M Consultants, Inc., of Anchorage--was identified to design the structure., 1976-05
Item — Folder: PCA0002-1b
Identifier: PCA0002-1b-13
Scope and Contents
PC6185-17
Dates:
Issued: 1976-05
Gulkana: With no lead time to order new steel, the requirement was that the bridge be constructed only with materials already at hand. This included the mainline and support pipe for the piers; the arch ribs, struts, floor beams, tie girders, bridge bearings and hangers fabricated from surplus plate stockpiled at the mill in Japan., 1976-05
Item — Folder: PCA0002-1b
Identifier: PCA0002-1b-14
Scope and Contents
PC6193-19
Dates:
Issued: 1976-05
Gulkana: All the material arrived at the site by the end of March---15 days later, the bridge was erected. The pipeline will be installed across the bridge this summer., 1976-05
Item — Folder: PCA0002-1b
Identifier: PCA0002-1b-15
Scope and Contents
PC6232-8
Dates:
Issued: 1976-05
Salcha River: Where the pipeline crosses beneath rivers, it must be buried at depths great enough to ensure the scouring effects of the river do not reach the buried line. Here, a surveyor checks the depth of the ditch across the Salcha River., 1976-05
Item — Folder: PCA0002-1b
Identifier: PCA0002-1b-16
Scope and Contents
PC6189-9
Dates:
Issued: 1976-05
Middle Fork Koyukuk: Here at the Koyukuk River, 130 miles north of the Yukon River, this surveyor elected not to use a boat to check the depth of the ditch., 1976-05
Item — Folder: PCA0002-1b
Identifier: PCA0002-1b-17
Scope and Contents
PC6182-3
Dates:
Issued: 1976-05
Middle Fork Koyukuk: He determined the clamshell bucket of a dragline rig to be a safer perch for measuring the pipe ditch., 1976-05
Item — Folder: PCA0002-1b
Identifier: PCA0002-1b-18
Scope and Contents
PC6182-8
Dates:
Issued: 1976-05
Jim River: Because of the natural buoyancy of the steel pipe, the line must be weighted to keep it down in the water-filled ditch. Here at the Jim River, a section of the line has been coated with concrete., 1976-05
Item — Folder: PCA0002-1b
Identifier: PCA0002-1b-19
Scope and Contents
PC6176-12
Dates:
Issued: 1976-05
Salcha River: At the Salcha River, 40 miles south of Fairbanks, the section of pipeline to be buried beneath the river is being welded in the foreground, while floats are being strapped to the weighted pipe, behind., 1976-05
Item — Folder: PCA0002-1b
Identifier: PCA0002-1b-20
Scope and Contents
PC6169-12
Dates:
Issued: 1976-05