Get Full Government Meeting Transcripts, Videos, & Alerts Forever!
TWM: relay sewer preferred to fix Hunter Street lift station after survey error
Summary
TWM project manager Kurt Zurni told the Lebanon City Council that a post-installation survey found the existing wet well about four feet deeper than recorded, forcing two options: relay ~440 ft of new gravity sewer (recommended for lower risk) or deepen/reset the prefabricated wet well; estimated cost ~ $100,000 and schedule implications were discussed.
Kurt Zurni, project manager for engineering firm TWM, told the Lebanon City Council on Aug. 25 that a post-installation inspection of the new Hunter Street lift station discovered a measurement error: the existing wet well is roughly four feet deeper than shown in the original survey. The discovery followed a severe rainfall event the firm said totaled about seven inches in one evening and led staff to inspect installation issues before the station has been fully commissioned.
Zurni described two feasible remedies. The lower-risk recommendation (Option 1) is to relay about 440 linear feet of gravity sewer — replacing an 8-inch line with a 10-inch line at a slightly flatter slope — and then transfer home laterals as needed. That option requires…
Already have an account? Log in
Subscribe to keep reading
Unlock the rest of this article — and every article on Citizen Portal.
- Unlimited articles
- AI-powered breakdowns of topics, speakers, decisions, and budgets
- Instant alerts when your location has a new meeting
- Follow topics and more locations
- 1,000 AI Insights / month, plus AI Chat
