Dillingham 500m -"■ 



Mushogali Bat 



Figure 6. Location map of Dillingham Harbor, Alaska. 



Sediment-size distribution (see Fig. 7) 



Sediment density: p g = 2.7 grams per cubic centimeter 



Water density: p = 1.0 gram per cubic centimeter 



Bulk density of sediment in basin: p^ = 1.5 grams per 

 cubic centimeter (estimate from other sources; e.g., see 

 Everts (1976a, 1976b) and Everts and Moore (1976)) 



(c) Harbor Characteristics. 



Sill elevation: z g = 1.5 meters 



Plan area: A = 35,000 square meters (at the half -full 

 basin elevation a + z g /2) 



Plan area: A b (z g ) = 21,500 square meters (at the sill 

 elevation of 1.5 meters) 



FIND : Estimate the mass of sediment deposited in Dillingham Harbor each tidal 

 cycle; estimate the shoaling rate (bottom elevation increase). 



14 



