Uniformat G3020

Sanitary manhole

Also called sewer manhole, maintenance hole

• Confidence C
• Version 0.2.0 (permanent link)
• Reviewed 2026-10-21

Service life

Years in service. The band runs from the shortest to the longest life the sources state, so it shows how much they disagree, not how long 80% of units last. The line is the median of the stated lives.

Basis

• 50 years · Kenora: AF-6-1 Tangible Capital Asset Policy (By-law 34-2026), p18 · “Wastewater Mains - Manholes” (accounting life)
  Capital asset policy (amortization period). Approved on text check: the label and value were found on the cited page.
• 75 years · Kingston: Tangible Capital Assets Policy, p16 · “Sewer Utility - Sewer - manholes” (accounting life)
  Capital asset policy (amortization period). Approved on text check: the label and value were found on the cited page.
• 60 years · Prince Edward: FIN-12 Tangible Capital Assets Policy, p34 · “Sewer - Manholes (Pooled)” (accounting life)
  Capital asset policy (amortization period). Approved on text check: the label and value were found on the cited page.

How sources are chosen and recorded: sourcing policy.

Preventive maintenance

2 tasks in 1 work order.

1. 1
2. 2
3. 3Qtr
4. 4
5. 5
6. 6Qtr
7. 7
8. 8
9. 9Qtr
10. 10
11. 11
12. 12Qtr

Months from the schedule start. Download the tasks as CSV for a CMMS, or ask the MCP tool get_pm_schedule for dated visits.

Frequencies are ISO 8601 durations in the data (P3M = every 3 months).

Open questions

• These are Ontario accounting lives from municipal capital asset policies, not planning or observed replacement data.
• Some maintenance intervals come from TM 5-692-1, an Army manual for mission-critical (C4ISR) facilities; they may be tighter than typical commercial practice.

Know the answer? Send it with a source to [email protected].

Cite this

Citation

unfinished.one (2026). Sanitary manhole, v0.2.0. https://unfinished.one/c/sanitary-manhole/v/0.2.0

BibTeX

@misc{unfinished_sanitary_manhole_0_2_0,
  title = {Sanitary manhole},
  author = {{unfinished.one}},
  year = {2026},
  version = {0.2.0},
  url = {https://unfinished.one/c/sanitary-manhole/v/0.2.0},
  note = {CC BY 4.0}
}

Licence CC BY 4.0 · How to cite · JSON · Versions: 0.2.0, 0.1.0