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Learn more →Work consists of Replacing existing stormwater pipes, manholes, and inlets, and constructing a new 48" stormwater line approx 30 feet east of existing Ditch A. Connections for the new stormwater system shall be watertight to resist groundwater infiltration. The work includes filling Ditch A, trenching, haul of contaminated soil, and asphalt paving.
Posted Date
Dec 1, 2025
Due Date
Dec 22, 2025
Release: Dec 1, 2025
Close: Dec 22, 2025
Work consists of Replacing existing stormwater pipes, manholes, and inlets, and constructing a new 48" stormwater line approx 30 feet east of existing Ditch A. Connections for the new stormwater system shall be watertight to resist groundwater infiltration. The work includes filling Ditch A, trenching, haul of contaminated soil, and asphalt paving.
AvailableProvide Portland International Airport (PDX) Uninterruptible Power System (UPS) Replacement.
Posted Date
Nov 25, 2025
Due Date
Dec 19, 2025
Release: Nov 25, 2025
Close: Dec 19, 2025
Provide Portland International Airport (PDX) Uninterruptible Power System (UPS) Replacement.
AvailableIn general, our work included the following: Reviewing available published and in-house geologic information as well as geotechnical information provided by the Port; Exploring the subsurface conditions with seven drilled borings and four hand-augured borings, and collecting soil samples; Conducting infiltration testing in five borings; Conducting laboratory testing to characterize soils and develop soil properties for evaluation; Performing preliminary geotechnical analyses, including infiltration potential, groundwater levels, and slope stability on Lot 10; Providing this report summarizing our explorations, preliminary geotechnical analysis, conclusions, and recommendations.
Posted Date
Nov 20, 2025
Due Date
Jan 21, 2026
Release: Nov 20, 2025
Close: Jan 21, 2026
In general, our work included the following: Reviewing available published and in-house geologic information as well as geotechnical information provided by the Port; Exploring the subsurface conditions with seven drilled borings and four hand-augured borings, and collecting soil samples; Conducting infiltration testing in five borings; Conducting laboratory testing to characterize soils and develop soil properties for evaluation; Performing preliminary geotechnical analyses, including infiltration potential, groundwater levels, and slope stability on Lot 10; Providing this report summarizing our explorations, preliminary geotechnical analysis, conclusions, and recommendations.
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