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Reference Levels

(Measured at James Ave.) Feet above
James Ave. Datum
Geodetic Metric (m)
Normal Summer Level (varies) 6.5 223.74
Assiniboine R. Walkway (minimum level) 8.5 224.35
Normal Winter Ice Level (varies) 0 221.76
1997 Flood Peak 24.5 229.23
2005 Flood Peak 20.1 227.89
2006 Flood Peak 20.4 227.99
2009 Flood Peak 22.6 228.66
2011 Flood Peak 20.7 228.089
2014 Flood Peak 19.2 227.62
2016 Flood Peak 18.1 227.28
2017 Flood Peak 19.5 227.71

James Ave. Datum: a gauge located on the Red River at James Avenue where the long term mean winter ice level at James is 727.57 feet geodetic or 0 ft James.

Geodetic metric = (James + 727.57) x 0.3048

"Geodetic" is the horizontal and vertical positioning of a ship, platform, benchmark, survey location, etc.

Winter weather impacts survey sites, leaving some sites unable to provide timely data or offline completely. Survey sites should be back to full function in spring.

Last updated: June 29, 2018

Did you know?

Service crews with the Wastewater Services, Local Sewer Branch work from 7 a.m. to 6 p.m., 7 days a week, 364 days a year? They work on all holidays except Christmas Day. These are the staff that respond to sewer backups, plugged catch basins, missing manhole covers and street flooding. So, when you see these staff working on a weekend or on a holiday, you'll know they are not working overtime – they are simply working their regular shift.