Tonnage Capacity of Locksby John P. Davis,
Serial Information: Journal of the Waterways and Harbors Division, 1969, Vol. 95, Issue 2, Pg. 201-216
Document Type: Journal Paper
Discussion: DataNotAvailable (See full record)
Three designations of tonnage capacity of a lock are discussed and defined. A method of estimating the practical tonnage capacity of a lock is presented and an example is included. Nine factors that govern or influence practical lock capacity are described, and 10 separate steps involved in making capacity estimates are given. Four of the 10 steps require the estimator to base selections of their values primarily on judgement. A relationship between lock use time and delays experienced by tows is developed to use as a guide in determining the average number of tows per day that can be put through a lock. The writer computes three estimates of practical capacity (maximum, minimum and probable) to demonstrate the methods and show effects of selection of different values for factors governed by judgement.
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