College of Engineering/ College of Agricultural and Life Sciences Department of Biological and Agricultural Engineering Historic Irrigation in the Snake River Plain, prior to 1900 ESHMC: Validation of the ESPAM2.0 Model, Historic Scenario Input
Outline Estimating Irrigation prior to 1900 Estimating Unregulated Flow Modeling Irrigation in
Estimating Irrigation prior to 1900 Sources: History of Irrigation Development in Idaho, Lewis, 1924 Pioneer Irrigation, Upper Snake River Valley, 1955 CanalRATETOTALDATE Neilsen-Hansen New Lava Side Wearywick Watson Slough Peoples (1898) Riverside Parson’s Ditch Fox-Whitten Ditch1500 acre-feet1885 Corbett Slough Trego Ditch Danskin Snake River Valley-Cedar Point (started 1884) Blackfoot Irrigation Company Reservation Canal Aberdeen-Springfield Bingham County
Estimating Irrigation prior to 1900 Sources: History of Irrigation Development in Idaho, Lewis, 1924 Pioneer Irrigation, Upper Snake River Valley, 1955 Bonneville County CanalDATE Smith Canal Anderson Canal Idaho Canal1891 Idaho and Great Western Dam1900 Farmer’s Friend1884 Woodville Canal1889 Harrison Canal1890 Great Western1891 Porter Canal1886 New Sweden1894 Osgood1904
Estimating Irrigation prior to 1900 Sources: History of Irrigation Development in Idaho, Lewis, 1924 Pioneer Irrigation, Upper Snake River Valley, 1955 Jefferson County CanalDATE Rudy1885 Burgess Canal1886 (1880) Butte and Market Lake North Rigby1883 Mattson Craig Buttler Island1885 Clark and Edwards1887 Parks and Lewisville1883 East Labelle Canal Company Island Irrigation Canal Company1886 Rigby Canal1885 Brush Canal West Labelle Irrigation Company1885 Lowder and Jennings Canal1890 Independent1895
Estimating Irrigation prior to 1900 Sources: History of Irrigation Development in Idaho, Lewis, 1924 Pioneer Irrigation, Upper Snake River Valley, 1955 Madison County CanalDATE Rexburg Irrigation Company1883 Roxana Canal1884 Lyman-Consolidated Feeder Island Ward Canal1901 Reid Canal1885 Teton Irrigation Canal1884 Lenroot1883 Woodmansee-Johnson1884 Salem-Union1892
Estimating Irrigation prior to 1900 Sources: History of Irrigation Development in Idaho, Lewis, 1924 Pioneer Irrigation, Upper Snake River Valley, 1955 Henry’s Fork and Falls River CanalDATE Egin Irrigation Company1885 Chester1887 Curr Island Ward Canal1901 Wood River 50,000 acres prior to construction of the big projects
Estimating Irrigation prior to 1900 Sources: History of Irrigation Development in Idaho, Lewis, 1924 Pioneer Irrigation, Upper Snake River Valley, Carter, 1955 Irrigated Eden, Fiege 1999 Madison County Findings 1) Irrigation Started around ) Water Rights filed before actual diversions began 3) The ‘Panic of 93’ led to the end of irrigation expansion 4) Around 1900 sugar beet factories
Estimating Unregulated Flow Source: Wise, Erika K. (2010). “Tree ring record of streamflow and drought in the upper Snake River.” Water Resources Research, vol. 46: W year Tree-Ring Record Flow at Jackson Lake Flow at Palisades Flow at Heise
Estimating Unregulated Flow-Annual Source: Wise, Erika K. (2010). “Tree ring record of streamflow and drought in the upper Snake River.” Water Resources Research, vol. 46: W11529.
Estimating Unregulated Flow-Monthly Monthly Estimation Procedure 1) Rank Years by Annual Flow ( ) 2) Calculate Average Monthly Hydrograph per category 3) Calculate standard deviation per category 4) F m = (F a – F avga )/STD avga *STD avgm +F mavg ) OctNovDecJanFebMarAprMayJunJulAugSepAnnaul Validate r² = 0.82 Calibrate r² = 0.80 Validate r² = 0.87
Modeling Monthly Recharge SD-SRPM (System Dynamics Snake River Planning Model) Model Assumptions 1) No minimum flow requirements 2) No reservoir storage 3) No groundwater pumping 4) Linear increase in irrigation demand from ) 75% of current demand
Modeling Monthly Recharge SD-SRPM (System Dynamics Snake River Planning Model)
Modeling Monthly Recharge SD-SRPM (System Dynamics Snake River Planning Model) Findings 1) Correctly identify historic shortages between ) Irrigation induced ESPA discharge (≈ 5 kaf) below Milner 3) Irrigation impact constant below Milner
Some Thoughts How to validate 1) SD-SRPM allows estimation of monthly recharge 2) Should validation be at a monthly timestep? 3) Possible uses of a Systems Model for ESHCM & IDWR Estimate Recharge (historic-availability) Estimate Recharge (land-use changes)
Questions?