{"id":"culvert-csp","version":"0.10.0","classification":{"uniformat":"G3030"},"names":["Culvert, corrugated steel"],"aliases":["CSP culvert","corrugated steel pipe"],"service_life":{"median_years":40,"range_years":[20,75],"range_basis":"source_spread"},"pm_tasks":[{"task":"Routine inspection of culverts over 20 ft span (NBIS bridge-length culverts)","frequency":"P2Y","reference":"23 CFR Part 650 Subpart C, National Bridge Inspection Standards (sections 650.305 and 650.311)","url":"https://www.ecfr.gov/current/title-23/chapter-I/subchapter-G/part-650/subpart-C","checklist":"650.311(a)(1)(i) Routine inspections, regular intervals"}],"basis":[{"type":"public_document","life_type":"accounting","title":"Chapple: Schedule A - By-law 1873: Asset Useful Life - General Guidelines","url":"https://chapple.civicweb.net/document/32784/","page":1,"years":40,"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":"Kapuskasing: By-law No. 3103, Tangible Capital Assets Policy","url":"https://kapuskasing.civicweb.net/document/6872/","page":15,"years":25,"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":"Kenora: AF-6-1 Tangible Capital Asset Policy (By-law 34-2026)","url":"https://listview.kenora.ca/Files/City%20Policy%20Manual/Administration%20and%20Finance/AF-6-1%20Tangible%20Capital%20Asset.pdf","page":16,"years":20,"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,"years":[25,40],"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":"planning","title":"Simcoe: County of Simcoe 2025 Asset Management Plan","url":"https://simcoe.ca/wp-content/uploads/2025/06/2025-Asset-Management-Plan.pdf","page":68,"years":75,"note":"Asset management plan (planning life). 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,"years":40,"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":"planning","title":"York: The Regional Municipality of York 2024 Corporate Asset Management Plan","url":"https://www.york.ca/media/119076","page":53,"years":35,"note":"Asset management plan (planning life). Approved on text check: the label and value were found on the cited page."},{"type":"public_document","life_type":"planning","title":"Elgin: Elgin County 2025 Asset Management Plan","url":"https://www.elgincounty.ca/wp-content/uploads/2026/02/Elgin-County-Asset-Management-Plan.pdf","page":10,"years":50,"note":"Asset management plan (planning life). Approved on text check: the label and value were found on the cited page."},{"type":"public_document","life_type":"planning","title":"Kingston: City of Kingston 2024 Asset Management Plan, Volume 1: Infrastructure, Transportation, Transit, & Emergency Services","url":"https://getinvolved.cityofkingston.ca/46640/widgets/197062/documents/145814/download","page":67,"years":30,"note":"Asset management plan (planning life). Approved on text check: the label and value were found on the cited page."},{"type":"public_document","life_type":"planning","title":"Lambton: County of Lambton 2025 Corporate Asset Management Plan","url":"https://www.lambtoncounty.ca/media/pmrd1ldn/2025-corporate-asset-management-plan.pdf","page":89,"years":50,"note":"Asset management plan (planning life). Approved on text check: the label and value were found on the cited page."},{"type":"public_document","life_type":"planning","title":"Leeds and Grenville: The United Counties of Leeds and Grenville Asset Management Plan 2025","url":"https://media-003-ca.cdn.govstack.com/leedsgrenville-ca/media/05rpljra/master-amp-2025-2.pdf","page":49,"years":30,"note":"Asset management plan (planning life). Approved on text check: the label and value were found on the cited page."},{"type":"public_document","life_type":"planning","title":"Meaford: Municipality of Meaford Asset Management Plan - Core Assets (Appendix 1 to Report CAO2022-28)","url":"https://meaford.ca/wp-content/uploads/2026/06/cao-2022-28-appendix-1-asset-management-plan-core-assets.pdf","page":79,"years":60,"note":"Asset management plan (planning life). Approved on text check: the label and value were found on the cited page."},{"type":"public_document","life_type":"planning","title":"Middlesex: County of Middlesex Asset Management Plan: Core Assets","url":"https://www.middlesex.ca/sites/default/files/2022-06/County%20of%20Middlesex%20Asset%20Management%20Plan%20Core%20Assets.pdf","page":18,"years":50,"note":"Asset management plan (planning life). Approved on text check: the label and value were found on the cited page."},{"type":"public_document","life_type":"planning","title":"The Blue Mountains: Town of The Blue Mountains Asset Management Plan 2025","url":"https://www.thebluemountains.ca/sites/default/files/2026-03/2025%20Asset%20Management%20Plan.pdf","page":107,"years":40,"note":"Asset management plan (planning life). 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.","Applies only to culverts that meet the NBIS bridge definition (more than 20 ft opening along the roadway); smaller culverts are not covered. Agencies using Method 2 may set other intervals."],"contributors":["unfinished.one editors"],"last_reviewed":"2026-10-22","canonical_url":"https://unfinished.one/c/culvert-csp","versioned_url":"https://unfinished.one/c/culvert-csp/v/0.10.0","licence":"CC-BY-4.0","citation":"unfinished.one (2026). Culvert, corrugated steel, v0.10.0. https://unfinished.one/c/culvert-csp/v/0.10.0"}