Bridge and culvert useful life
What 19 municipalities in Ontario state in 21 published asset management plans and capital asset policies, component by component, beside the library's sourced entry. Every life links to the page it comes from.
These are lives municipalities assume: amortization periods in capital asset policies (accounting lives) and replacement forecasts in asset management plans (planning lives). None is a measured age at replacement. Policies that copy one shared table count once.
| Component | Municipal median | Range | Tables | Library entry |
|---|---|---|---|---|
| Concrete bridge | 75 years | 45–100 | 4 | 75 years C |
| Steel bridge | 75 years | 75–115 | 3 | 75 years C |
| Bridge deck wearing surface | 22.5 years | 20–30 | 4 | 22.5 years C |
| Concrete culvert | 75 years | 50–75 | 11 | 75 years C |
| Corrugated steel pipe culvert | 40 years | 20–75 | 12 | 40 years C |
Municipal median: the median of the distinct stated lives (a range counts at its midpoint). Tables: independent tables behind them. The library entry combines these with US federal sources; its page shows how.
Concrete bridge
4 municipalities state a life in 4 distinct tables: 45–100 years, median 75. Library entry: 75 years, grade C.
All 5 stated lives
| Municipality | Years | Kind | Document |
|---|---|---|---|
| Brantford | 75 | Plan (planning) | 2025, p12 · matched automatically |
| Elgin | 75 | Plan (planning) | 2025, p10 · matched automatically |
| Greater Napanee | 45 | Policy (accounting) | 2012, p17 |
| Lanark | 90 | Plan (planning) | 2022, p78 · matched automatically |
| Lanark | 100 | Plan (planning) | 2022, p78 · matched automatically |
Steel bridge
3 municipalities state a life in 3 distinct tables: 75–115 years, median 75. Library entry: 75 years, grade C.
Bridge deck wearing surface
4 municipalities state a life in 4 distinct tables: 20–30 years, median 22.5. Library entry: 22.5 years, grade C.
Concrete culvert
11 municipalities state a life in 11 distinct tables: 50–75 years, median 75. Library entry: 75 years, grade C.
All 13 stated lives
| Municipality | Years | Kind | Document |
|---|---|---|---|
| Barrie | 75 | Plan (planning) | 2025, p127 · matched automatically |
| Brantford | 75 | Plan (planning) | 2025, p12 · matched automatically |
| Kapuskasing | 70 | Policy (accounting) | 2009, p15 · matched automatically |
| Kingston | 50 | Plan (planning) | 2024, p67 · matched automatically |
| Lambton | 75 | Plan (planning) | 2025, p89 · matched automatically |
| Leeds and Grenville | 50 | Plan (planning) | 2025, p49 · matched automatically |
| Meaford | 75 | Policy (accounting) | 2020, p19 · matched automatically |
| Meaford | 75 | Plan (planning) | 2022, p79 · matched automatically |
| Middlesex | 75 | Plan (planning) | 2022, p18 · matched automatically |
| Simcoe | 75 | Plan (planning) | 2025, p68 · matched automatically |
| The Blue Mountains | 75 | Policy (accounting) | 2019, p12 · matched automatically |
| The Blue Mountains | 75 | Plan (planning) | 2025, p107 · matched automatically |
| York | 75 | Plan (planning) | 2024, p53 · matched automatically |
Corrugated steel pipe culvert
12 municipalities state a life in 12 distinct tables: 20–75 years, median 40. Library entry: 40 years, grade C.
All 14 stated lives
| Municipality | Years | Kind | Document |
|---|---|---|---|
| Chapple | 40 | Policy (accounting) | undated, p1 · matched automatically |
| Elgin | 50 | Plan (planning) | 2025, p10 · matched automatically |
| Kapuskasing | 25 | Policy (accounting) | 2009, p15 · matched automatically |
| Kenora | 20 | Policy (accounting) | 2026, p16 · matched automatically |
| Kingston | 30 | Plan (planning) | 2024, p67 · matched automatically |
| Lambton | 50 | Plan (planning) | 2025, p89 · matched automatically |
| Leeds and Grenville | 30 | Plan (planning) | 2025, p49 · matched automatically |
| Meaford | 25–40 | Policy (accounting) | 2020, p19 · matched automatically |
| Meaford | 60 | Plan (planning) | 2022, p79 · matched automatically |
| Middlesex | 50 | Plan (planning) | 2022, p18 · matched automatically |
| Simcoe | 75 | Plan (planning) | 2025, p68 · matched automatically |
| The Blue Mountains | 40 | Policy (accounting) | 2019, p12 · matched automatically |
| The Blue Mountains | 40 | Plan (planning) | 2025, p107 · matched automatically |
| York | 35 | Plan (planning) | 2024, p53 · matched automatically |
Cite this comparison
Citation
unfinished.one (2026). Bridge and culvert useful life. https://unfinished.one/lives/bridges-culvertsThis page grows as documents are added. To cite a fixed value, cite the municipal document and page, or the component's versioned entry. Rows marked "matched automatically" were found in the page text by a script; follow the link before relying on one. Every row as CSV · Sourcing policy