Area / Capacity Hopkinton Dam Drainage Area = 426 sq. mi.
Stage (ft)	Area (acres)	Capacity (ac-ft)	Capacity (in)	Full (Percent)
380	220	0	0.00	0.0
381	298	300	0.01	0.0
382	376	660	0.03	0.0
383	454	1,090	0.05	1.0
384	532	1,525	0.06	1.0
385	610	2,060	0.09	1.0
386	714	2,690	0.11	2.0
387	818	3,500	0.15	2.0
388	922	4,330	0.18	3.0
389	1026	5,350	0.22	3.0
390	1130	6,450	0.27	4.0
391	1222	7,790	0.33	5.0
392	1314	9,000	0.38	6.0
393	1406	10,350	0.43	7.0
394	1498	11,750	0.49	8.0
395	1590	13,300	0.56	9.0
396	1694	15,090	0.63	10.0
397	1798	16,850	0.70	11.0
398	1902	18,660	0.78	12.0
399	2006	20,685	0.86	13.0
400	2110	22,800	0.95	15.0
401	2218	24,600	1.03	16.0
402	2326	27,050	1.39	21.0
403	2434	29,400	1.56	24.0
404	2542	31,900	1.78	27.0
405	2650	34,500	3.05	47.0
406	2760	37,300	3.46	53.0
407	2870	40,200	3.81	59.0
408	2980	43,100	4.12	63.0
409	3090	46,100	4.53	70.0
410	3200	49,140	4.95	76.0
411	3280	52,425	5.20	80.0
412	3360	55,700	5.44	84.0
413	3440	59,100	5.70	88.0
414	3520	62,700	5.96	92.0
415	3600	65,880	6.21	96.0
416	3698	70,100	6.50	100.0
417	3796	73,600	6.77	104.0
418	3894	77,550	7.06	109.0
419	3992	81,595	7.36	113.0
420	4090	85,600	7.65	118.0
Invert Elevation = 366 ft. NGVD
Spillway Crest = 416 ft			Top of Dam = 437 ft