Area / Capacity Birch Hill Dam Drainage Area = 175 sq. mi.
Stage (ft)	Area (acres)	Capacity (ac-ft)	Capacity (in)	Full (Percent)
0	0	0	0.00	0.0
1	40	100	0.00	0.2
2	90	200	0.00	0.4
3	140	450	0.01	0.9
4	190	750	0.04	2.0
5	250	1,000	0.07	2.0
6	310	1,450	0.12	3.0
7	375	1,750	0.15	4.0
8	450	2,200	0.20	4.0
9	525	2,750	0.25	6.0
10	600	3,200	0.30	6.0
11	675	3,800	0.37	8.0
12	740	4,500	0.44	9.0
13	820	5,200	0.52	10.0
14	890	6,000	0.60	12.0
15	975	6,900	0.70	14.0
16	1060	7,850	0.80	16.0
17	1140	8,800	0.90	18.0
18	1230	9,900	1.02	20.0
19	1320	11,100	1.15	22.0
20	1420	12,200	1.27	24.0
21	1500	13,700	1.43	27.0
22	1600	15,200	1.59	30.0
23	1700	16,800	1.76	34.0
24	1800	18,500	1.94	37.0
25	1910	20,400	2.15	41.0
27	2120	24,100	2.54	48.0
29	2325	28,300	2.99	57.0
31	2550	32,800	3.47	66.0
32	2660	35,600	3.77	71.0
34	2890	41,000	4.35	82.0
35	3000	44,000	4.67	88.0
37	3200	49,900	5.34	100.0
39	3460	57,000	6.10	114.0
40	3580	61,000	6.53	122.0
42	3825	68,500	7.33	137.0
44	4060	76,500	8.19	153.0
Invert Elevation = 815 ft. NGVD
Spillway Crest = 37 ft			Top of Dam = 49 ft