USGS Water-Year Summary for Site 07134100

Click to hide Water-Year Summary instructions and information

Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
Not all sites have reports available for every water year.

	Available Parameters
	00060 Discharge(Mean)

Select a water year

Water year 2023: 2022-10-01 to 2023-09-30

Print this page

USGS Water-Year Summary 2023

07134100 BIG SANDY CREEK NEAR LAMAR, CO

LOCATION - Lat 38°06'51", long 102°29'00" referenced to North American Datum of 1927, in SW 1/4 SW 1/4 sec.21, T.22 S., R.45 W., Prowers County, CO, Hydrologic Unit 11020011, on right bank 35 ft upstream from State Highway 196, 950 ft upstream from mouth, and 7.5 mi east of Lamar.

DRAINAGE AREA - 3,216 mi² of which 585 mi² probably is noncontributing.

REVISIONS HISTORY - WDR-US-2011: Drainage area.

SURFACE-WATER RECORDS

PERIOD OF RECORD - February 1968 to September 1982, July 1995 to December 2022 (discontinued).

GAGE - Water-stage recorder with satellite telemetry and crest-stage gage. Elevation of gage is 3,545 ft above NGVD of 1929, from topographic map. Prior to June 30, 1977, at datum 1.00 ft higher.

REMARKS - Water year 2014; records fair except for estimated daily discharges, which are poor. Water year 2015; records fair except for estimated daily discharges, which are poor. Water year 2016; records fair except for estimated daily discharges, which are poor. Water year 2017; records fair except for the period Sept. 12 to Oct. 17, and estimated daily discharges, which are poor. Water year 2018; no estimated daily discharges. Records fair except for the period Apr. 24 to June 21, and flows above 113 ft³/s, which are poor. Water year 2019; no estimated daily discharges. Records fair except for flows above 22 ft³/s, which are poor. Water year 2020; records fair except for flows above 22 ft³/s, and estimated daily discharges, which are poor. Water year 2021; records poor. Water year 2022; records poor. Water year 2023; records poor. Natural flow of stream affected by storage, erosion-control, and livestock-watering reservoirs, diversions for irrigation, groundwater withdrawals, and return flows from irrigated areas. Flow affected by backwater from the Arkansas River at times.

EXTREMES OUTSIDE PERIOD OF RECORD - Flood of June 17, 1965, reached a discharge of 3,600 ft³/s, from slope-area measurement of peak flow 0.5 mi upstream from station. Flood of Aug. 21, 1965, reached a stage of 9.93 ft, from floodmarks, discharge unknown.

EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 2,850 ft³/s, May 4, 1999, from rating curve extended above 1,470 ft³/s on basis of flow-through culvert analysis with flow over road measurement at gage height 9.48 ft, gage height, 9.66 ft.