Table 3. River discharge, suspended-sediment concentrations, and sediment discharge at sampling sites, Kootenai River, Idaho, water year 2008.

[Abbreviations: m³/s, cubic meter per second; m/s, meter per second; mm, millimeter; mg/L, milligram per liter; <, less than; >, greater than or equal to; –, no data]

Date	Time	Discharge (m3/s)	Discharge downstream of Libby Dam (m3/s)	Estimated tributary discharge (m3/s)	Mean velocity (m/s)	Fines concentration (<0.063 mm, mg/L)	Sand concentration (≥0.063 mm, mg/L)	Total concentration (mg/L)	Fines load (<0.063 mm, metric tons per day)	Sand load (≥0.063 mm, metric tons per day)	Total load (metric tons per day)
Kootenai River below Moyie River—4842231161104
12-12-071	15:25	569	504	65	–	3.7	2.3	6	184	112	296
12-13-071	12:15	589	566	23	1.10	3.1	2.9	6	162	151	313
05-07-08	14:11	705	252	453	1.23	39	4.0	43	2,390	263	2,650
05-17-08	08:30	1,110	391	722	–	96	16.0	112	9,250	1,540	10,800
05-18-08	08:21	1,310	391	923	1.88	170	22.0	192	19,200	2,630	21,800
06-01-08	11:00	1,020	413	603	1.62	26	6.0	32	2,300	508	2,810
06-03-08	10:00	1,210	748	462	1.78	26	18.0	44	2,710	1,910	4,620
06-04-08	10:12	988	606	382	1.58	14	9.0	23	1,230	744	1,970
06-11-08	11:48	1,050	739	314	1.62	8.8	8.2	17	804	740	1,540
06-12-08	16:13	1,030	745	286	1.62	8.5	7.5	16	756	678	1,430
Kootenai River below Fry Creek—12309490
12-13-071	14:15	592	507	85	0.99	4.9	6.1	11	249	315	564
05-07-08	15:40	719	255	464	–	46	10.0	56	2,820	671	3,490
05-08-08	14:29	748	253	496	1.21	46	10.0	56	2,950	671	3,620
05-17-08	15:37	1,140	394	745	–	110	18.0	128	11,000	1,630	12,600
05-18-08	13:32	1,310	388	918	1.12	170	21.0	191	19,400	2,180	21,600
06-01-08	14:50	895	416	479	.94	25	5.0	30	1,960	363	2,320
06-03-08	12:36	1,130	739	394	1.02	27	11.0	38	2,590	1,120	3,710
06-11-08	16:21	1,000	745	258	1.04	10	7.0	17	907	562	1,470
06-13-08	08:41	1,020	742	275	1.05	11	6.0	17	943	553	1,500
Kootenai River above Shorty's Island—4845421162319
12-14-071	10:45	671	643	28	0.00	19	10.0	29	1,090	592	1,680
05-08-08	08:41	745	254	490	.72	67	47.0	114	4,320	3,030	7,350
05-16-08	16:48	963	394	569	.76	39	16.0	55	3,170	1,420	4,590
05-18-08	15:11	1,320	388	932	.80	160	44.0	204	18,300	5,030	23,300
05-31-08	17:01	963	416	547	.65	30	7.0	37	2,500	583	3,080
06-02-08	11:44	1,240	742	501	.76	68	44.0	112	7,330	4,740	12,100
06-03-08	17:10	1,160	753	411	.71	30	15.0	45	3,020	1,510	4,530
06-12-08	10:47	1,040	745	297	.68	13	11.0	24	1,170	989	2,160

¹Particle-size distribution not available.