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Water-Year Summary for Site 05117500
The datum at 05117500 (Souris River above Minot, ND) is 1546.88 ft above NAVD88 as of October 1, 2021 (GNSS survey by USGS). Prior to conversion to NAVD88, the published datum of the gage was 1545.75 ft above NGVD29.
Previous gage locations and datums:
May 1903-March 1924; staff or chain gage located on a footbridge NW of the Great Northern Railroad roundhouse (east of current USGS station 05117600 Souris River at Broadway Bridge at Minot, ND) at a datum of 12.5 ft lower. In 1908, the footbridge was removed and replaced with another footbridge a few hundred feet downstream. This bridge is known as the Anne Street Viaduct in Minot, ND (also commonly called the main street footbridge). The datum did not change between these two bridges. Gage was operated by the USGS under the streamgage name of Mouse River at Minot, N. Dak. (published as Souris River at Minot, N. Dak., after 1927). Currently, this site has a station number of 05117700 and station name of Mouse (Souris) River at Minot, N.Dak., original site.
April 1924-September 1928; staff or chain gage located at Valker Bridge (8th Ave SE Bridge in Minot, ND) at a datum of 18.4 ft lower. Gage was operated by the North Dakota State Engineer under the streamgage name of Mouse River at Minot, N. Dak. (published as Souris River at Minot, N. Dak., after 1927). Currently, this site has a station number of 05117800 and station name of Mouse (Souris) River at Minot, N. Dak. (Valker Bridge).
October 1928-September 1929; staff or wire-weight gage located at Saugstad Bridge (37th Ave SE in Minot, ND) at a datum of 19.2 ft lower. Gage was operated by the North Dakota State Engineer under the stremgage name of Souris River near Minot, N. Dak. Currently, this site has a station number of 05118000 and station name of Souris River at Saugstad Bridge below Minot, N. Dak.
October 1929-September 1934; gage returned to staff or chain gage located at the Anne Street Viaduct in Minot, ND at a datum of 12.5 ft lower. Gage was operated by the USGS under the streamgage name of Mouse River at Minot, N. Dak. (published as Souris River at Minot, N. Dak., after 1927). Currently, the site has a station number of 05117700 and station name of Mouse (Souris) River at Minot, N.Dak., original site.
October 1934-current; stilling well type gage with continuous recording equipment located about 3.5 miles west of Minot, ND. Stilling well is located slightly downstream from the Ward County Road 17 bridge. Records are equivalent to previous years except those for periods of extreme low flow, as some industrial and sanitary waster waters enter the river between the historic site locations.
REGULATION.--Flow regulated by reservoirs on Souris and Des Lacs Rivers, combined capacity, about 700,000 acre-ft; some small diversions for irrigation and municipal supply.
Water temperature - May 2019 to current.
Specific conductance - May 2019 to current.
Dissolved oxygen - May 2019 to current.