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Juneau - Jordan Creek Slipline



Juneau - Jordan Creek Slipline


Slipline a 120' long aluminum CMP section inside of an existing 8' deteriorated CMP pipe carrying Jordan Creek underneath the Juneau Airport. Difficult problems of high ground water levels from tidal inflow on one end and Jordan creek on the other were overcome by preliminary patching of host pipe and injecting multiple lifts of low-density grout to offset the buoyancy force of the liner pipe. MCGA consulted on the preparation and installment of the slipline and then mobilized equipment and personnel to produce and inject low-density grout to fill the annular space between pipes. 55 lb grout was produced to achieve 500 psi for the project.