JOHN DAY LOCK AND DAM - LAKE UMATILLA, COLUMBIA RIVER, OREGON AND WASHINGTON; DESIGN MEMORANDUM NO.16, SUPPLEMENT NO.2, NAVIGATION LOCK MODEL STUDIES.

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JOHN DAY LOCK AND DAM - LAKE UMATILLA, COLUMBIA RIVER, OREGON AND WASHINGTON; DESIGN MEMORANDUM NO.16, SUPPLEMENT NO.3, NAVIGATION LOCK SILL BLOCKS.

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JOHN DAY LOCK AND DAM - LAKE UMATILLA, COLUMBIA RIVER, OREGON AND WASHINGTON; DESIGN MEMORANDUM NO.16, SUPPLEMENT NO.9, NAVIGATION LOCK FLOATING GUIDE WALL "B"

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JOHN DAY LOCK AND DAM - LAKE UMATILLA, COLUMBIA RIVER, OREGON AND WASHINGTON; DESIGN MEMORANDUM NO.16, SUPPLEMENT NO.8, MODIFICATION TO NAVIGATION LOCK GATE MONOLITHS.

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JOHN DAY LOCK AND DAM - LAKE UMATILLA, COLUMBIA RIVER, OREGON AND WASHINGTON; DESIGN MEMORANDUM NO.16, SUPPLEMENT NO.10, DOWNSTREAM NAVIGATION CHANNEL EXCAVATION.

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JOHN DAY LOCK AND DAM - LAKE UMATILLA, COLUMBIA RIVER, OREGON AND WASHINGTON; DESIGN MEMORANDUM NO.16, SUPPLEMENT NO.6, TEMPORARY UNWATERING FACILITIES FOR NAVIGATION LOCK MONOLITH MODIFICATION.

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JOHN DAY LOCK AND DAM - LAKE UMATILLA, COLUMBIA RIVER, OREGON AND WASHINGTON; DESIGN MEMORANDUM NO.16, SUPPLEMENT NO.1, DESIGN ANALYSIS, TAINTER GATE ANCHORAGE.

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JOHN DAY LOCK AND DAM - LAKE UMATILLA, COLUMBIA RIVER, OREGON AND WASHINGTON; DESIGN MEMORANDUM NO.46.1, LETTER SUPPLEMENT NO.2, ADDITIONAL GROUND WATER SUPPLY.

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JOHN DAY LOCK AND DAM - LAKE UMATILLA, COLUMBIA RIVER, OREGON AND WASHINGTON; DESIGN MEMORANDUM NO.16, SUPPLEMENT NO.11, UPSTREAM NAVIGATION CHANNEL EXCAVATION.

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JOHN DAY LOCK AND DAM - LAKE UMATILLA, COLUMBIA RIVER, OREGON AND WASHINGTON; DESIGN MEMORANDUM NO.16, SUPPLEMENT NO.7, TRANS-SHIPPING FACILITIES.

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