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Engineer reports small cracks but no imminent structural failure in Richmond water tank; core testing and membrane options recommended
Summary
An engineer's inspection found cracks in Richmond's concrete water tank that are narrow in width and not an immediate structural threat; the town will consider membrane roofing, insulation and optional core testing (estimated $5,000–$10,000) and will review findings with the engineer at the Feb. 3 meeting.
Town staff told the Water and Sewer Commission on Jan. 21 that an engineering inspection of the town's concrete water tank found cracking consistent with age and exposure but no evidence of concrete in distress that would indicate imminent structural failure.
According to the meeting summary, the engineer noted that "there's some cracking but all the cracks are are very small in in width" and that comparable tanks show similar patterns of cracking. The report recommended a set of maintenance measures — including applying a membrane to seal surface cracks on the roof, adding insulation on exposed faces, and routine monitoring — rather than immediate full‑scale structural remediation.
Staff discussed the option of performing a core‑sample test to verify concrete strength; the transcript records an estimate of about $5,000–$10,000 for such a test (which requires coring a sample and refilling the hole). Staff said they would follow up with engineers (including Chris Child and Todd H. Heninger) to search for original concrete strength test records and, if necessary, arrange on‑site testing.
The meeting also covered aesthetic and public‑perception considerations: the report suggested painting or adding vegetative screening to improve the tank’s appearance so residents do not perceive it as failing. The engineer will be invited to present the full report at the Feb. 3 meeting to answer technical questions and provide additional recommendations.
What’s next: Staff will attempt to locate original test reports, consider a core sample test if warranted, and discuss membrane/insulation options with the presenting engineer at the Feb. 3 meeting.
