Dam Inventory System
Department of Land and Natural Resources
State of Hawaii
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OAHU RESERVOIR 155
OA-0137
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DAM OVERVIEW DATA
Dam Height:
Top of Crest:
Spillway Crest:
Operating Level:
Maximum Storage: /
Electronic Gage Data
DAM SCHEMATIC
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Primary Spillway Maximum Discharge: Hazard Classification:
Emergency Action Plan: Date of Last Inspection:
Date of Last EAP: Electronic Gage URL:
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Emergency Notes
Battery Voltage/Water Level   https://uhslc.soest.hawaii.edu/reservoir/
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DAM INFO
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1. GENERAL INFORMATION
a. National Dam ID: HI00137
b. State Dam ID: OA-0137
c. Dam Name: OAHU RESERVOIR 155
d. Other Name(s): Reservoir #155
e. Longitude/Latitude (dec): -158.059328 /21.404622
f. County/Island: Honolulu/Oahu
g. Type of Dam: Earthen
h. Purpose: Irrigation
i. Completed / Last Modified: 1916 /
j. Nearest Town/City: Waipahu 2.7 miles
k. Water Body Type: State Regulated Dam
l. Dam Height: 25.0 ft
m. Dam Length: 900.0 ft
n. Drainage Area: 0.0046 sq. miles / 2.944 acres
o. Primary Spillway Type: Channel
p. Maximum Storage: 37.0 acre-ft / 12.1 MG
2. OWNER INFORMATION
a. Name of Owner(s): Monsanto Company, State of Hawaii - Dept of Agriculture - ADC
b. TMK(s): (1) 9-2-001:001
3. HAZARD POTENTIAL CLASSIFICATION
a. Hazard Classification: High
b. Emergency Action Plan: Yes