Uniformat G3030

Stormwater management pond

Also called SWM pond, stormwater facility, detention pond

• 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 · CNA e-Tool Estimated Useful Life Table, p1 · HUD CNA 3.2.2.5 “Stormwater mgmt ponds” — U.S. Department of Housing and Urban Development (planning life)
  Same life for family and elderly properties. US multifamily housing. HUD's row is for site work at US multifamily properties, not municipal networks.
• 75 years · Kingston: Tangible Capital Assets Policy, p14 · “Land Improvements - Storm water ponds” (accounting life)
  Capital asset policy (amortization period). Approved on text check: the label and value were found on the cited page.
• 40 years · Meaford: By-law 2020-83, Tangible Capital Asset Policy, Appendix A Estimated Useful Lives, p19 · “Linear - Stormwater Facility” (accounting life)
  Capital asset policy (amortization period). Approved on text check: the label and value were found on the cited page.
• 60 years · Quinte West: A09-POLICY-0034 Tangible Capital Asset Policy, p38 · “Storm Water Ponds” (accounting life)
  Capital asset policy (amortization period). Approved on text check: the label and value were found on the cited page.
• 50 years · Simcoe: POL-FIN-004 Tangible Capital Assets Policy (Schedule 3 to AUC 2026-046), p21 · “Storm Ponds” (accounting life)
  Capital asset policy (amortization period). Approved on text check: the label and value were found on the cited page.
• 40 years · The Blue Mountains: POL.COR.19.04 Tangible Capital Assets Policy, p12 · “Linear - Stormwater Facility” (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

No maintenance tasks are sourced for this component yet.

Open questions

• HUD gives planning lives for US multifamily housing; the municipal rows are Ontario accounting lives. Neither is observed replacement data.
• No preventive maintenance tasks are sourced yet.

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

Cite this

Citation

unfinished.one (2026). Stormwater management pond, v0.2.0. https://unfinished.one/c/stormwater-pond/v/0.2.0

BibTeX

@misc{unfinished_stormwater_pond_0_2_0,
  title = {Stormwater management pond},
  author = {{unfinished.one}},
  year = {2026},
  version = {0.2.0},
  url = {https://unfinished.one/c/stormwater-pond/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