For an average lock of six hundred feet length and one hundred and ten feet width, with navigable pass of six hundred feet length, and with weirs of two hundred and forty feet available openings, all arranged to provide six feet navigable depth in the shoalest parts of the improved channels of the pools, with an average lift at each dam of seven and two-tenths feet:
Lock, including cofferdam, excavations, foundations, masonry, timber, and ironwork of fixed and movable parts, power plant, machinery, and accessories
Miscellaneous, including local surveys, purchase of sites, embanking, retaining, riprapping, and paving of banks, lock employees' houses, storehouses, other buildings, dredging of approaches to locks and passes, dredging of shoals and removal of obstructions in pools, engineering work of location, construction, and inspection, office work of engineering and disbursements, and other contingencies