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:8 FLOODS OF SEPT. 1970 IN ARIZ., UTAH, COLO., AND N. MEX. STATION DATA-GILA RIVER BASIN 129 (136) 09513910. New River near Glendale. Ariz. Agua Fda River at Avondale. Ariz.-Continued Location. -.Lat 33D32'12", long 112016'52", in NEfNWt Bec. B, T.2 N.. R. 1 E., Maricopa County, on downstream side of bridge at Glendale Avenue, 2 mi (3 kIn) upstream from mouth, 4 mi (6 km) southwest of Peoria, and 6 mi (10 km) west of Glendale. Day Sept. 4 5 Mean discharge, in cubic feet per second, 1970 Discharge Day Discharge Day o Sept. 6 3,500 Sept. B.... 450 7 30 Discharge o Drainap;e area. --323 mi2 (837 km2). Gage-height record. --Water-stage recorder graph except 2100-2400 hours Sept. 5 and 1700 hours Sept. 6 to Sept. 9, Missing graph for Sept. 5, 6 reconstructed on basis of high-water mark in well, records at upstream stations, and normal recession, Datum of gage is 1,046.20 ft (318.882 m) above mean sea level. Gage height, in feet, and discharge, in cubic feet per second, at indicated time, 1970 Dischartte record. --Stage-discharge relation defined by current-meter measurements below 2, 100 (t3/8 (59 m3/s) and extended above on basis of slope-area measurement of peak flaw. Discharge far Sept. 7-9 estimated on basis of two current-meter measurements, an observation of no flow, and records of flow at upstream stations. Hour Gage Discharge Hour Gage Discharge Hour Gage Discharge height height height Sept, 4 Sept. 5-Con, Sept. 6 Con. 2400 5.70 0 2400 11. 00 12.000 0600 8.72 3, 000 Sept. 5 Sept. 8 1000 8.02 1,450 2000 5.70 0 0030 11. 14 14,600 1800 7,53 676 2100 7,40 0 0130 11.21 20,600 2400 7.32 248 2145 7.45 0 0200 10.80 16,500 Sept. 7 , 2200 8.75 690 0300 10.10 9,800 0600 7.00 0 2300 10.40 4,300 0400 9.50 6.200 2400 6.76 0 Maxima. --Sept. 4-9. 1970: Discharge, 19,200 ft3/s or 544 m3/s (time unknown) Sept. 5 ~ height, 9. 1 it or 2. 77 m, in gage well). 1943 to August 1970: Discharge, 38,000 ft3/s (1.080 m3/s) August 1943 (gage height, unknown), from Carps of Engineers. (138) 09515500. Hassayamp8- River at Box damsite, near Wickenburg. Ariz. Mean discharge, in cubic feet per second, 1970 Day Discharge Day Discharge Day Discharge Sept. 4 0 Sept. 6 2.190 Sept. 6 10 5 2,300 7 100 9 0 Location. --Lat 34002142", long 11204212311, in SWtSEt sec. 7, T. 8 N., R.4 W. (unsurveyed). Yavapai County, on right bank at Box damsite, 5.5 mi (8.8 km) north- east of Wickenburg. Drainage area. --417 mi2 (1,080 krn2). Gage height, in feet, and discharge, in cubic feet per second, at indicated time, 1970 Gage-height record. --No gage-height record. Gage destroyed by flood. Datum of gage is 2,236.12 ft (681. 569 m) above mean sea level, datum of 1929. Hour Gage Discharge Hour Gage Discharge Hour Gage Discharge height height height Sept. 4 Sept. 5 Can. Sept. 6 Con. 2400 0.15 0 2200 8.4 11,200 0500 6.15 3,480 Sept. 5 2300 9.1 19.200 0700 5.60 2,300 1900 .15 0 2400 8,1 12,200 1000 5.20 1,370 1910 5.10 620 Sept. 6 1200 4.95 1,010 1915 8.10 8,100 0030 7.85 10.600 1500 4. 63 850 1930 8.20 8,600 0100 7.45 8.350 1600 4.35 415 2000 8.10 8. 100 0200 7.30 7,600 2400 4,0 220 2100 8.00 8. 100 0300 6.60 4,860 Discharge record. --Discharge estimated on basis of slope-area meas~rement o~ peak flow, observations of flow. weather records, and flow records s.t dIstant statlOns. Maxima. --Sept. 4-10, 1970: Discharge, 58,000 ft3/s (1, 640 m3/s) about 1600 hours ---sept':' 5 (gage height, 34.6 ft or 10.55 m, from profile past gage). 193B to August 1970: Disch3.rge, 27, ODD U31a (765 m3/s) Aug. 29, 1951 (gage height, 18.3 ft or 5.58 m). (137) 09513970. Agua Fria River at Avondale. Ariz. Day Sept. 4 5 6 Mean discharge, in cubic feet per second, 1970 Discharge Day Discharge Day 1. 5 Sept, 7 50 Sept. 9 5,000 8 25 10 200 Discharge 10 5.0 Location. --Lat 33026'06", long 11201915911. in NWt sec. 14, T. 1 N., R.1 W., Maricopa County, on downstream side of bridge on U. S. Highway BO, 0.5 mi (0. 8 km) east of Avondale. and 3 mi (5 km) upstream from mouth. Drainage area. .-2, 013 mi2 (5,214 1an2), of which 1,459 mi2 (3,779 km2) above Lake Pleasant is noncontributing except during periods of spill from Waddell Dam. Floodwater from drainage area of 247 mi2 (640 km2) above McMicken Dam may be diverted into Agua Fria River above station. (139) 09515800. Hartman Wash near Wickenburg, Ariz. (Crest- stage station) "Gage-height record. --Water-stage recorder graph except part of Sept. 7. Gage-height record reconstructed on the basis of normal recession. Datum of gage is 950. 00 ft (289.560 m) above mean sea level. Location. --Lat 33057'46'1. long 112049'40", in SEt sec. 12, T. 7 N., R.6 W., Maricopa County, at U. S. Highway 60, 5.7 ml (9.2 kIn) west of Wickenburg. Draina~e area. --5. 57 mi2 (14.43 km2). Ga~e-hei~ht record. --Crest stages only. Datum of gage is 2.490.00 ft (758. 952 m) above mean sea level (levels by Arizona Highway Department). Discharge record. --Stage-discharge relation defined by current-meter measurements below 500 fPls (14 m3/s) and extended above on basis of slape-area measurement of peak flow. Maxima. --Sept. 4-8, 1970: Discharge, 20,600 ft3/s (583 m3/s) 0130 hours Sept, 6 ~ height. 11.21 ft or 3.4l7m). 1960 to August 1970: Discharge, 20,000 ft3/s (566 m3/s) Dec. 20, 1967 (gage height, 12.70 ft or 3. 8n m). Dischar~e record. --Stage-discharge relation defined by current-meter measurements below 4. 7 it (1. 43 m) and above by a theoretical rating based on flow through culvert. Maxima. --Sept. 4-10, 1970: Discharge, 1,600 ft3/s (45.3 m3/s) Sept. 5 (gage height, ----=f:"'ijQ ft or 2. 134 m, at gage; 6.13 it or 1. 868 m, from profile of high-water marks). 1963 to August 1970: Discharge, 2,600 ft3/s (73.6 m3/s) Aug. 14, 1967 (gage height, 8.05 it or 2.454 m).