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9th Avenue Waterline Replacement
Hillsboro, OR
Details
440 LF
8” DIP Installed
4
New Water Services
Project
As part of the 9th Avenue Waterline Replacement project, Century West provided preliminary and final engineering for the abandonment of an existing 6-inch steel waterline, construction of 440 linear feet of new 8-inch ductile iron pipe (DIP), and four new water services. Project challenges included:
- Large concrete-encased communications duct bank crossing waterline
- High pressure gas lines with Northwest Natural cathodic protection grounding station and grounding well within project limits
- Scheduling restrictions due to adjacent elementary school

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