McNary Navlock_Site Plan_Downstream Miter Gate Lift.pdf
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- Attached to
- McNary Downstream Miter Gate Replacement
- Solicitation number
- W912EF26RSS26
About this file
This file contains technical engineering documents and specifications for the removal of gate structures at The Dalles Dam in Wahkiakus, Washington.
The primary documents include a general arrangement plan showing the layout of storage and staging areas, gate machinery, decks, and mooring facilities at the dam site. Key structural elements identified include asphalt surfaces (EL 286 and EL 347.5), a tailwater elevation of EL 260-265, and a forebay at EL 340. The plan designates restricted deck access areas and shows gate-related infrastructure including gate machinery rooms, bulkhead slots, tarter valve shafts, and mooring hooks. A Lampson LTL-1100 transi-lift crane is specified for use in the Dallas Miter Gate removal, equipped with a 56-foot stinger and operating with specific load parameters. The ground bearing pressure analysis indicates front transporter pressure of 5.87 KSF (281.25 KPA) and rear transporter pressure of 1.68 KSF (80.48 KPA), with pressure areas utilizing timber mats and no fill. The crane configuration includes a boom length of 200 feet (60-400 feet range), mast length of 130 feet, auxiliary counterweight of 2400 kips, and maximum load on boom of 850 kips at a 130-foot working radius with a 50.24-degree boom angle. Each gate leaf weighs 425 tons and measures 53.5 feet wide by 106 feet tall. The project documentation is dated November 2010 and prepared by PSI, Inc., with designs provided by DIX Corp.
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| File | Type | Posted |
|---|---|---|
| W912EF26RSS26 Sources Sought MNA DS Miter Gate Replacement.pdf |
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Text version
R
EV
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/2 6/ g4ecddsi Image g4ecddsi Image g4ecddsi Image g4ecddsi PolyLine g4ecddsi Dimension
80 FT (APPROX)
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ASPHALT EL 347.5 (APPROX)
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ASPHALT EL 286 (APPROX)
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TAILWATER EL 260-265
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FOREBAY EL 340
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EACH GATE LEAF IS 425 TONS
53.5' WIDE X 106' TALL
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LAMPSON LTL-1100 TRANSI-LIFT
(USED FOR THE DALLES MITER GATE IN 2011)
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DECK EL 348
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PSI, INC.
6032 N. CUTTER CIRCLE, SUITE 480
PORTLAND, OREGON 97217
(503) 289-1778
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DATE:
NOVEMBER,
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THE DALLES DAM GATE REMOVAL
WAHKIAKUS, WASHINGTON
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PSI PROJECT NUMBER
0704307
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PROVIDED BY:
DIX CORP.
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LTL - 1100 OUTLINE
DIMENSIONS
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FIGURE B2
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