TIDES AND CURRENTS IN BOSTON HARBOR 67 



Table 30. — Adjusted tidal data, Boston Harbor 



Sta- 

 tion 

 No. 



Broad Sound: Hours 



Nahant. 11.25 



Lynn Harbor _ 11.40 



Boston Harbor entrance: 



Boston Light, Nantasket Roads... 11.22 



Lovells Island, The Narrows.. 11.22 



Georges Island, Nantasket Roads.. 11.22 



Rainsford Island, Nantasket Roads 11.23 



Northern shore: 



Deer Island, Shirley Gut _ 11.30 



Point Shirley Wharf 11.37 



Chelsea Creek entrance 11.57 



Boston Inner Harbor: 



Charles River Bridge... _ 11.46 



Warren Bridge, Charles River... 11.46 



Craigies Bridgs (Charles River Dam) 11.50 



Navy yard, Charlestown 11.44 



Chelsea Bridge, Mystic River 11.45 



Middlesex Avenue Bridge, Mystic River... 11. 59 



Medford Bridge, Mystic River.. 11.79 



Western shore: 



Dover Street Bridge, Fort Point Channel 11.34 



Railroad bridge. South Bay I 11.39 



Commonwealth Pier No. 5 | 11. 29 



Castle Island 11.24 



Railroad bridge, Neponset River ! 11.26 



Moon Head i 11.24 



Southern shore: I 



Nut Island.. ...J 11.37 



Sheep Island, Hingham Bay 1 11.40 



Weymouth Fore River Bridge i 11.51 



Weymouth Back River Bridge 11.50 



Crow Point, Hingham Harbor entrance I 11.41 



Hingham, Hingham Harboi* i 11.45 



Strawberry Hill, Hingham Bay ..! 11.40 



Lunitidal 

 intervals 



Hours 

 5.00 

 5.10 



5.01 

 5.02 

 5.02 

 5.03 



5.10 

 5.20 

 5.28 



5.26 

 5.26 

 5.30 

 5.23 

 5.48 

 5.73 

 6.00 



5.13 

 5.29 

 5.04 

 5.04 

 5.06 

 5.04 



5.17 

 5.20 

 5.33 

 5.35 

 5.28 

 5.30 

 5.25 



Range of tide 



Note.— Tidal influences extend up the several rivers tributary to Boston Harbor as follows: 

 Chelsea River, 3 miles to a dam at Slade's Spice Mill. 

 Mystic River, 5 miles to a dam at Cradock Bridge, Medford. 



Maiden River, 2 miles above its confluence with the Mystic River to a point beyond the Charles Street 

 Bridge. 

 Charles River, 1 mile to the Charles River Dam. 

 Neponset River, 4 miles to a dam at Milton Lower Mills. 

 Weymouth Fore River, 6 miles to a dam at East Braintree. 

 Weymouth Back River, 4 miles to the highway bridge at East Weymouth. 

 For reference to above table, see p. 18. 



