Platte River Basin Water Atlas

Collection of information regarding Platte River Basin diversions included photographing selected diversion structures and tabulating Wyoming State Engineer’s Office (SEO) permit information regarding these structures. Major diversions were generally those that are permitted by the SEO to convey 50 cubic feet per second (cfs) or greater flow and were identified by a process including assessing an SEO database of basin diversion information, discussions with SEO hydrographers, and review of the 1999 Tabulation of Adjudicated Surface Water Rights of the State of Wyoming. The advice and assistance of SEO hydrographers, both in the office and in the field, was essential to the successful completion of this work. Some major diversions were not photographed, due either to private property access issues or very remote locations. Click here to view a map of the major diversions that were photographed in the Pathfinder to Guernsey subbasin. Following are diversion photographs and accompanying information for the Pathfinder to Guernsey subbasin.

	Alcova Powerplant
	Structure number	PG-1
	Wyoming State Engineer’s Office permit number	P21174D
	Permitted conveyance (cubic feet per second)	3,800.00
	Priority date	11-27-1951
	Location – SEO district number	13
	Location – SEO district office	Douglas
	Location – Qtr/Qtr (if available)/Section/Township/Range	NE1/4NE1/4 S25-T30N-R83W
	Water source	North Platte River
	Photograph courtesy of USBR

	Glendo Powerplant
	Structure number	PG-2
	Wyoming State Engineer’s Office permit number	P21145D
	Permitted conveyance (cubic feet per second)	3,340.00
	Priority date	01-13-1953
	Location – SEO district number	3
	Location – SEO district office	Wheatland
	Location – Qtr/Qtr (if available)/Section/Township/Range	SE1/4NW1/4 S24-T29N-R68W
	Water source	North Platte River
	Photograph courtesy of USBR

	Casper Canal
	Structure number	PG-3
	Wyoming State Engineer’s Office permit number	P18488D
	Permitted conveyance (cubic feet per second)	337.95 + Supplemental Supply
	Priority date	07-27-1934
	Location – SEO district number	11
	Location – SEO district office	Casper
	Location – Qtr/Qtr (if available)/Section/Township/Range	SW1/4SE1/4 S23-T30N-R83W
	Water source	North Platte River
	Photograph courtesy of USBR

	Douglas Canal (pump station) (Canon #4)
	Structure number	PG-4
	Wyoming State Engineer’s Office permit number	P6101D
	Permitted conveyance (cubic feet per second)	37.84
	Priority date	07-07-1904
	Location – SEO district number	14
	Location – SEO district office	Douglas
	Location – Qtr/Qtr (if available)/Section/Township/Range	S28-T32N-R71W and others
	Water source	North Platte River
	Date of photograh	2-23-2005

	West Side Ditch
	Structure number	PG-5
	Wyoming State Engineer’s Office permit number	Territorial, P1429E, P4055E, P16986D, P4531E, P4759E, P5403E, P6157E, P6111E, P6782R
	Permitted conveyance (cubic feet per second)	38.16 + Reservoir Supply, Supplemental Supply, & Secondary Supply
	Priority dates	06-1886, 04-07-1904, 09-21-1905, 11-17-1919, 12-14-1909, 12-17-1926, 01-22-1931, 04-02-1935, 02-04-1957, 04-14-1964, 04-14-1964
	Location – SEO district number	20
	Location – SEO district office	Douglas
	Location – Qtr/Qtr (if available)/Section/Township/Range	S16-T32N-R73W
	Water source	LaPrele Creek
	Date of photograh	2-23-2005

	East Main Canal (Table Mountain or LaPrele Main, Powell & Ayres)
	Structure number	PG-6
	Wyoming State Engineer’s Office permit number	Territorial, P41D, P5198D, P6529D, P1430E, P1670E, P1956E, P2968E, P4054E, P4139E, P4530E, P4589E
	Permitted conveyance (cubic feet per second)	136.08 + Secondary Supply
	Priority dates	04-01-1884, Fall 1889, 06-25-1890, 05-02-1891, 03-30-1902, 02-20-1905, 09-21-1905, 03-18-1907, 03-25-1907, 05-11-1914, 11-17-1919, 07-26-1920, 12-17-1926, 07-09-1928
	Location – SEO district number	20
	Location – SEO district office	Douglas
	Location – Qtr/Qtr (if available)/Section/Township/Range	S21-T32N-R73W
	Water source	LaPrele Creek
	Date of photograh	2-23-2005