Accession Number:

ADA000326

Title:

John Day Dam, Columbia River, Oregon and Washington; Hydraulic Model Investigations.

Descriptive Note:

Final rept.,

Corporate Author:

ARMY ENGINEER DIV NORTH PACIFIC BONNEVILLE OREG DIV OF HYDRAULIC LAB

Personal Author(s):

• Johnson,Richard L.
• Perkins,Louis Z.

Report Date:

1972-06-01

Pagination or Media Count:

270.0

Abstract:

Excavation requirements, adequacy of cofferdam and diversion plans, project layout, structures designs, and proposed methods for operation of the John Day Project were investigated in a 180-scale general model. Water-surface data from the general model were used to regulate a 125-scale model in which satisfactory designs for the skeleton powerhouse units were developed. The general model was verified with natural water-surface elevations before construction of The Dalles Dam and with similar data after The Dalles pool was filled. Agreement between model and prototype flow patterns and water-surface elevations was satisfactory for both conditions.

Descriptors:

• *HYDRAULIC MODELS
• *DAMS
• WATER FLOW
• RIVERS
• CHANNELS(WATERWAYS)
• FLOOD CONTROL
• OREGON
• WASHINGTON(STATE)

Subject Categories:

• Civil Engineering

Distribution Statement:

APPROVED FOR PUBLIC RELEASE