Plate 107 — Sluice gate mechanism, winter, River Improvement District
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Mechanical Systems — Floodgate Survey

Plate 107 — Sluice gate mechanism, winter, River Improvement District

River Improvement Survey — Gate Station 4, sluice mechanism, section 7
Department River Engineering Bureau
Date January 1912
Conditions Overcast; snow accumulated on gate mechanism and surrounding timbers; dark water below gate; flat winter light; cold; bare trees on far bank
District District 4 — River Improvement District
Accession No. 04-1912-000107
Observation Note “Gauge read­ing con­sis­tent with con­di­tions iden­ti­fied in the ini­tial sur­vey.” — Field Log 4‑A, Riv­er Improve­ment Station
Filed under Maintenance Survey Winter Operations Lock Operations Mechanical Systems Floodgate Works Winter Light