Hazard risk in Stonebridge is lower than in 91% of Canadian towns
Fire seldom reaches Stonebridge: since 1986, 0.6% of the land within 25 km has burned (0.02% a year). Seismic risk runs low: $0.006 of expected damage per $1,000 of buildings a year, the typical town $0.030. In Health Canada’s survey, 6.6% of homes tested in Stonebridge’s area exceeded 200 Bq/m³, close to the typical 6.6%. Stonebridge grades A for hazard risk, with wildfire counted against it.
What stands out about Stonebridge’s hazards
For Stonebridge, from NRCan’s seismic model, Health Canada’s radon survey, the national burned-area record and the flood map inventory.
What Stonebridge faces
Each hazard against its own yardstick; meters run from low to high on that yardstick.
Wildfire
Earthquakes
Radon
Flood study
Hazard risk in Stonebridge: A
For Stonebridge, Risk will be the average of earthquakes and radon, with wildfire added only if it makes the average worse.
Its place: #9 of 104 in Saskatchewan and #299 of 2,589 Canadian towns.
How sure: The seismic figure is a long-run average from NRCan’s model, not a prediction. Only 76 homes were tested in the survey area, so the radon share is rough. The burned-area record misses fires under about 10 ha and most grass and farm fires.
Wildfire is rare near Stonebridge: 0.6% of the land within 25 km burned since 1986, 0% within 5 km
Fires mapped since 1986 around where Stonebridge’s residents live, and the fuel next to their homes.
Low by Canadian standards: 0.02% of the land a year around Stonebridge, 0.000% for the typical Canadian town.
No fire has burned within 5 km of Stonebridge’s homes since 1986; the nearest burn is 18 km away.
Only 0% of the land within 25 km of Stonebridge is forest fuel, and 0% close in.
Shares of land within 5 and 25 km of populated blocks: burned at least once in 1986–2025 (CWFIS burned-area composite), forest fuel and grass (fire behaviour fuel types, 2026, 250 m grid).
Burn rate a year, towns in Saskatchewan · highest of 104
La Loche burns fastest in Saskatchewan at 1.94% a year; Stonebridge, at 0.02%, ranks 9th of 104.
Each bar: the yearly average share of land within 25 km of a town’s homes that burned, 1986–2025 (CWFIS); the seven highest towns of 2,500 people or more.
Some fire is mapped around Stonebridge, but not enough to leave the low band, where 92% of Canada’s 2,610 towns are; 7.5% rank higher.
Bands of the yearly burn rate: low under 0.05%, moderate under 0.25%, high under 1%, very high 1% or more; towns of 2,500 people or more.
Fire danger and active fires (CWFIS)
Canadian Wildland Fire Information System: National Burned Area Composite 1986–2025 and fire behaviour fuel types (2026), Natural Resources Canada. Measured within 25 km and 5 km of each populated dissemination area; past fire, not a forecast.
The flood map inventory lists nothing for Stonebridge
Flood studies whose area touches Stonebridge, from NRCan’s inventory, each linked to its owner.
Canada’s Flood Map Inventory lists no study whose area touches Stonebridge, which doesn’t mean it has never been mapped.
Towns with a flood study on file
Stonebridge has no flood study on file; only 55% of towns in Saskatchewan do, against 58% across Canada.
NRCan Canada Flood Map Inventory: a study footprint touching the town’s boundary; towns of 2,500 people or more.
Nothing here counts toward Risk; the studies are pointers to the maps their owners keep for Stonebridge.
The inventory’s own caution (NRCan): “The Canada Flood Map (CFM) does not include every flood hazard map in Canada and may be incomplete or contain inaccuracies. It should not be relied upon as the official source of flood mapping information. Furthermore, if a map appears to be missing, this does not necessarily mean that the area has never been mapped. For the official version of a map, updated information, or confirmation of applicable regulations, please contact the local authority responsible for flood mapping.”
Earthquakes cost buildings in Stonebridge just $0.006 per $1,000 a year
NRCan’s seismic risk model: the damage shaking is expected to do to buildings each year, on average over many years.
At $0.006 per $1,000, Stonebridge carries 0.2 times the typical Canadian town’s earthquake risk ($0.030): low.
Stonebridge doesn’t get its own earthquake risk figures; the ones here come from the city of Saskatoon.
Shaking damage a year per $1,000 of building value
Stonebridge’s $0.006 is close to the median in Saskatchewan, $0.006; Weyburn is highest at $0.033.
NRCan seismic risk model (2022): mean yearly building loss per $1,000 of value; medians of towns of 2,500 people or more.
88% of Canada’s 2,611 towns expect more shaking damage than Stonebridge.
Each column: the share of Canada’s towns of 2,500 people or more in that range of yearly loss per $1,000 (NRCan, 2022).
For Stonebridge the model prices shaking damage to buildings, nothing more.
Natural Resources Canada, Canada’s Seismic Risk Model (2022), by census subdivision (2016 boundaries; a few 2021 subdivisions take their residents’ mean).
Some radon around Stonebridge: 6.6% of area homes over the guideline
Health Canada’s survey of long-term home tests: the share above the 200 Bq/m³ guideline. · Area-wide: radon tests, counted over the Saskatoon RHA
The survey area of Stonebridge reads 6.6%, a shade from the typical Canadian town’s 6.6%.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
The median in Saskatchewan is 9.1% over 200 Bq/m³; around Stonebridge it is 6.6%.
Health Canada radon survey (2009–2011), by 2007 health region; medians of towns of 2,500 people or more.
Between 5% and 10% of tests over the guideline: Stonebridge, and 37% of Canada’s 2,611 towns; 26% are higher.
Each bar: the share of Canada’s towns of 2,500 people or more whose survey area had that share of tests over 200 Bq/m³.
Health Canada advises testing every home, Stonebridge’s included, whatever the area’s figure.
Health Canada, Cross-Canada Survey of Radon Concentrations in Homes (2009–2011).
Where to get warnings in Stonebridge
Environment and Climate Change Canada issues the weather alerts for Stonebridge; Alert Ready carries the urgent ones to phones, radio and TV.
| Alert | What it means |
|---|---|
| Warning | Severe weather is happening or about to: act now. |
| Watch | Conditions favour severe weather: be ready. |
| Advisory | Weather that is less severe but could disrupt the day. |
| Special weather statement | Unusual weather worth knowing about. |
| Special air quality statement | Poor air, often wildfire smoke. |
Smoke and fire warnings for Stonebridge come through Environment Canada and Alert Ready; the fire map is CWFIS’s.
Weather alerts (ECCC) · Alert Ready · Fire danger and active fires (CWFIS)
How Stonebridge’s neighbours compare on hazards
The same four hazards for the places next door.
| Town | Wildfire | Quake $/1,000 | Radon | Flood study |
|---|---|---|---|---|
| Stonebridge | Low | $0.006 | 6.6% | None listed |
| Eastview 7,536 · 1.8 km | Low | $0.006 | 6.6% | None listed |
| Nutana Park 3,045 · 2.0 km | Low | $0.006 | 6.6% | None listed |
| Nutana Urban Centre 5,926 · 2.7 km | Low | $0.006 | 6.6% | None listed |
| Adelaide/Churchill 2,652 · 2.8 km | Low | $0.006 | 6.6% | None listed |
| Holliston 2,963 · 3.1 km | Low | $0.006 | 6.6% | None listed |
| Lakewood Urban Centre 4,923 · 3.3 km | Low | $0.006 | 6.6% | None listed |
The neighbour with the most fire is Nutana Park (low), still no more than Stonebridge (low).
Radon is the survey area’s figure, so neighbours in one area share it.
Get ready for what Stonebridge faces
Practical steps for Stonebridge’s hazards, most pressing first.
- Test for three months in winter.
- Over 200 Bq/m³: fix it.
- Kits are cheap; pros test too.
- Never drive through floodwater.
- Move papers and medicines upstairs.
- Ask whether your street is mapped.
- Clear needles and wood nearby.
- Keep a grab-and-go bag ready.
- In smoke, stay in; filter air.
- Has it had a radon test?
- Ask the municipality for flood maps.
- Are flood and wildfire insured?
What this data can and can’t tell you
- Flood studies aren’t flood zones. Flood studies cover areas of every size, which is why the page lists them for Stonebridge without grading them.
- Wildfire counts one way. Burned land within 25 km of where people live, averaged over 1986–2025 and checked for fuel near homes, is the measure; it looks back, not ahead, and only ever counts against Stonebridge.
- Earthquakes are modelled. The earthquake figure is an expected loss, not a forecast, worked out by NRCan for each census subdivision, Stonebridge’s included.
- Radon is a survey. Radon figures pool the survey’s home tests by area: postal areas once their boundaries arrive, the 2007 health region around Stonebridge until then.
Questions about flooding and hazards in Stonebridge
Is radon a problem in Stonebridge?
6.6% of the 76 homes Health Canada tested around Stonebridge topped the guideline; your own house needs its own test.
Does Stonebridge flood?
No study on Canada’s Flood Map Inventory covers Stonebridge (0), which doesn’t mean it has never been mapped, so ask the municipality.
How is Stonebridge’s Hazard risk Grade worked out?
Stonebridge grades A for hazard risk, from earthquakes and radon, with wildfire counted only where it lowers the grade.
Is Stonebridge at risk of wildfire?
Not much by Canadian standards: Stonebridge’s band is low, with 0.6% of the land within 25 km burned since 1986 (last in 2023), so wildfire doesn’t change its grade.
How big is the earthquake risk in Stonebridge?
Expected earthquake damage in Stonebridge comes to $0.006 a year for each $1,000 that buildings are worth.
Seismic risk: Natural Resources Canada. Radon: Health Canada. Wildfire: Canadian Wildland Fire Information System. Flood studies: Natural Resources Canada, Canada Flood Map Inventory. Contains information licensed under the Open Government Licence – Canada.
Sources: NRCan, Canada’s Seismic Risk Model 2022 · Health Canada, Cross-Canada Survey of Radon Concentrations in Homes · CWFIS, National Burned Area Composite and FBP fuel types · NRCan, Canada Flood Map Inventory. Under the Statistics Canada Open Licence.
Adapted from Statistics Canada (Census of Population 2021, population estimates 2025, 2021 census boundaries) under the Statistics Canada Open Licence; this does not constitute an endorsement by Statistics Canada. Neighbourhood names in some cities © OpenStreetMap contributors (ODbL).