Dreamflows Rating Table

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Mattole - Near Ettersburg

This rating table shows the relationship between gauge height and river flow for the USGS gauge, id '11468900', located on Mattole River, at the Wilder Ridge Road bridge at Ettersburg, CA. Dreamflows generated the graph and table using USGS rating table data. NOTE: The rating table below was published Feb 13, 2026 and was valid only at that time. The relationship between gauge height and river flow may change over time and therefore the older the rating table, the less reliable it is likely to be. The graph shows the range of data of primary interest to boaters, while the numerical listing gives the full range of available data.

	Flow (in cfs) - last revised Feb 13, 2026
Height (feet)	.0	.1	.2	.3	.4	.5	.6	.7	.8	.9
8			1	4	7	11	16	22	29	37
9	46	55	66	78	92	109	128	143	160	177
10	194	213	232	252	273	294	316	339	362	386
11	411	436	470	506	542	580	618	658	699	741
12	784	828	873	919	966	1014	1063	1113	1164	1216
13	1269	1323	1379	1435	1492	1550	1609	1669	1729	1791
14	1854	1918	1982	2048	2114	2182	2250	2320	2390	2461
15	2533	2606	2680	2754	2830	2906	2984	3062	3141	3221
16	3302	3384	3467	3550	3635	3720	3806	3893	3981	4069
17	4159	4249	4341	4433	4526	4619	4714	4809	4906	5003
18	5101	5200	5299	5399	5501	5603	5706	5809	5914	6019
19	6125	6232	6340	6448	6558	6668	6779	6891	7003	7116
Height (feet)	.0	.1	.2	.3	.4	.5	.6	.7	.8	.9
20	7231	7345	7461	7578	7695	7813	7932	8051	8172	8293
21	8415	8538	8661	8785	8911	9036	9163	9290	9418	9547
22	9677	9807	9939	10071	10203	10337	10471	10606	10742	10878
23	11015	11153	11292	11431	11572	11713	11854	11997	12140	12284
24	12429	12574	12720	12867	13015	13163	13312	13462	13612	13764
25	13916	14068	14222	14376	14531	14687	14843	15000	15158	15316
26	15476	15636	15796	15958	16120	16282	16446	16610	16775	16941
27	17107	17274	17442	17611	17780	17950	18120	18292	18464	18636
28	18810	18984	19159	19334	19511	19687	19865	20043	20222	20402
29	20582	20764	20945	21128	21311	21495	21679	21865	22050	22237
30	22424	22612	22801	22990	23180	23371	23562	23754	23947	24141
31	24335	24529	24725	24921	25118	25315	25514	25712	25912	26112
Height (feet)	.0	.1	.2	.3	.4	.5	.6	.7	.8	.9
32	26313	26514	26717	26919	27123	27327	27532	27738	27944	28151
33	28358	28566	28775	28985	29195	29406	29617	29829	30042	30256
34	30470	30685	30900	31116

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