{"id":"culvert-concrete","version":"0.1.0","classification":{"uniformat":"G3030"},"names":["Culvert, concrete"],"aliases":["concrete box culvert","concrete pipe culvert"],"service_life":{"median_years":75,"range_years":[70,75],"range_basis":"source_spread"},"pm_tasks":[],"basis":[{"type":"public_document","life_type":"accounting","title":"Kapuskasing: By-law No. 3103, Tangible Capital Assets Policy","url":"https://kapuskasing.civicweb.net/document/6872/","page":15,"label":"Culverts - Concrete","years":70,"note":"Capital asset policy (amortization period). Approved on text check: the label and value were found on the cited page."},{"type":"public_document","life_type":"accounting","title":"Meaford: By-law 2020-83, Tangible Capital Asset Policy, Appendix A Estimated Useful Lives","url":"https://meaford.civicweb.net/document/103944/","page":19,"label":"Linear - Culverts - Concrete","years":75,"note":"Capital asset policy (amortization period). Approved on text check: the label and value were found on the cited page."},{"type":"public_document","life_type":"accounting","title":"The Blue Mountains: POL.COR.19.04 Tangible Capital Assets Policy","url":"https://www.thebluemountains.ca/sites/default/files/2022-01/POL-COR-19-04-Tangible-Capital-Assets-Policy.pdf","page":12,"label":"Linear - Culverts - Concrete","years":75,"note":"Capital asset policy (amortization period). Approved on text check: the label and value were found on the cited page."}],"confidence":{"grade":"C","sample_size":null},"open_questions":["These are Ontario accounting lives from municipal capital asset policies, not planning or observed replacement data.","No preventive maintenance tasks are sourced yet."],"contributors":["unfinished.one editors"],"last_reviewed":"2026-10-21","canonical_url":"https://unfinished.one/c/culvert-concrete","versioned_url":"https://unfinished.one/c/culvert-concrete/v/0.1.0","licence":"CC-BY-4.0","citation":"unfinished.one (2026). Culvert, concrete, v0.1.0. https://unfinished.one/c/culvert-concrete/v/0.1.0"}