Theodosia River below Olsen Lake Diversion water level

Name: Theodosia River below Olsen Lake Diversion water level (Environment and Climate Change Canada – Water Survey of Canada)
Creator: Environment and Climate Change Canada – Water Survey of Canada
License: https://open.canada.ca/en/open-government-licence-canada

River gauge, Theodosia River, British Columbia, Canada

Directions

Normal for mid-October

Water level

3.74m Steady over the last 24 hours

Measured Oct 19, 2026, 02:05 PM PDT (1 hour ago)

Flow: 0.03 m³/s

History

7 days 30 days

Water level Normal range (10–90 %)

What this means

Water levels are unremarkable at Theodosia River below Olsen Lake Diversion, where the gauge shows 3.74 m.

The median for mid-October is 3.79 m, based on 15 years of readings, so the water level is 0.05 m below typical.

It has barely moved over the past 24 hours. The 30-day range is 3.72 m – 4.40 m.

Fall is often low-water season on rivers, until steadier rain returns.

Compared with 15 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date: 3.79 m0.05 m below the median for this date
Normal for this date: 3.24 m – 4.13 m8 years in 10 fall in this range (15 years of records)
Lowest and highest in 30 days: 3.72 m – 4.40 m
Lowest and highest in 12 months: 3.73 m – 4.11 m

Freshet, ice and paddling

Open-water season is the time for canoe trips and fishing, though rapids change character with every few centimetres of water.

Flood advisories come from the provincial river forecast centre.

About the Theodosia River

The Theodosia River is a river in the Pacific Ranges of the South Coast region of British Columbia, Canada, flowing southwest into Theodosia Inlet in the Desolation Sound region.

Weather at the gauge

Rain in the last 3 days: 14 mm. Rain that falls upstream can take hours or days to show up at a river gauge.

19 Mon 14° 7° – Wind 6 km/h

20 Tue 17° 6° – Wind 4 km/h

21 Wed 17° 8° – Wind 6 km/h

22 Thu 12° 7° 2.1 mm, 39% Wind 8 km/h

23 Fri 12° 6° – Wind 5 km/h

24 Sat 8° 7° 17 mm, 51% Wind 3 km/h

25 Sun 11° 6° 8.4 mm, 41% Wind 9 km/h

Forecast: Open-Meteo

Sunrise 07:47 AM Sunset 06:20 PM Daylight 10 hr, 33 min First quarter 62%

Map

Other gauges on the Theodosia River

Gauge	Level	Compared with normal	24 hours	Distance
Theodosia River above Scotty CreekRiver gauge, Theodosia River	3.38 m	Normal	−0.04 m	6.2 km

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Theodosia River Diversion BypassCanal gauge	6.81 m	Normal	−0.02 m	0.1 km
Theodosia River Diversion above Olsen LakeCanal gauge, Theodosia River Diversion	9.54 m	Normal	−0.05 m	0.3 km
Horseshoe River above Lois LakeRiver gauge, Horseshoe River	2.24 m	Low	±0	34 km
Campbell River at Argonaut WharfRiver gauge, Campbell River	3.90 m	Very high	+0.29 m	51 km
Campbell River at Campbell River LodgeRiver gauge, Campbell River	1.05 m	Very high	+0.26 m	53 km
Campbell River near Campbell River CablewayRiver gauge, Campbell River	4.23 m	Very low	±0	54 km
Little Oyster River at Yorke RoadRiver gauge, Little Oyster River	0.64 m	Low	±0	55 km
Quinsam River near Campbell RiverRiver gauge, Quinsam River	0.70 m	Very low	±0	55 km

Questions and answers

What is a normal level for the Theodosia River below Olsen Lake Diversion in mid-October?

The median for mid-October is 3.79 m. In 8 years out of 10 the reading falls between 3.24 m and 4.13 m, based on 15 years of records.

Is the river level the same as the depth of the water?

No. The reading is measured from a fixed zero mark at the gauge, so 3.74 m on the gauge does not mean the water is that deep.

What is the water level of Theodosia River below Olsen Lake Diversion today?

On Oct 19, 2026, 02:05 PM PDT, the water level was 3.74 m. Steady over the last 24 hours.

Is Theodosia River below Olsen Lake Diversion rising or falling?

Steady over the last 24 hours. Down 0.01 m over the last 7 days.

Is the level of Theodosia River below Olsen Lake Diversion normal?

Normal for mid-October. Compared with 15 years of daily readings for this time of year.

How often is this data updated?

Environment and Climate Change Canada – Water Survey of Canada publishes a new reading every hour. This page refreshes within minutes of each update.

Where does this data come from?

The values come directly from Environment and Climate Change Canada – Water Survey of Canada, the official operator of this gauge, and are published under the Open Government Licence – Canada. We do not estimate or model live values.

For specialists

Station codes, datum, parameters, data quality and downloads

Operator: Environment and Climate Change Canada – Water Survey of Canada
Station code: eccc:08GC007 (Agency page)
Coordinates: 50.12777, -124.54333 (WGS84)
Vertical datum: station datum (assumed datum)
Update interval: every hour
Licence: Open Government Licence – Canada. Contains information licensed under the Open Government Licence – Canada

Published series

Parameter	Last value	Time (UTC)	Quality
Water level	3.74 m	2026-10-19 21:05	Provisional
Flow	0.03 m³/s	2026-10-19 21:05	Provisional

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How to cite

Environment and Climate Change Canada – Water Survey of Canada: Theodosia River below Olsen Lake Diversion (eccc:08GC007). Accessed October 19, 2026 via Nivelmap, https://nivelmap.com/en/canada/british-columbia/theodosia-river-below-olsen-lake-diversion

How we check values

Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.

Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer