Dam Inventory System
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State of Hawaii
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NUUANU RESERVOIR NO. 1
OA-0154
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LATEST ACTIVITES FOR THIS DAM
DAM OVERVIEW DATA
Dam Height:
Top of Crest:
Spillway Crest:
Operating Level:
Maximum Storage: /
Electronic Gage Data
DAM SCHEMATIC
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Emergency Contacts

Key Elevations
Primary Spillway Maximum Discharge: Hazard Classification:
Emergency Action Plan: Date of Last Inspection:
Date of Last EAP: Electronic Gage URL:
EAP PDF: View File     
Emergency Notes
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DAM INFO
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1. GENERAL INFORMATION
a. National Dam ID: HI00154
b. State Dam ID: OA-0154
c. Dam Name: NUUANU RESERVOIR NO. 1
d. Other Name(s):
e. Longitude/Latitude (dec): -157.837398 /21.339684
f. County/Island: Honolulu/Oahu
g. Type of Dam: Earthen
h. Purpose: Flood Control
i. Completed / Last Modified: 1905 /
j. Nearest Town/City:  
k. Water Body Type: State Regulated Dam
l. Dam Height: 33.5 ft
m. Dam Length: 588.0 ft
n. Drainage Area: 0.133 sq. miles / 85.12 acres
o. Primary Spillway Type: Channel
p. Maximum Storage: 63.5 acre-ft / 20.7 MG
2. OWNER INFORMATION
a. Name of Owner(s): Honolulu Board of Water Supply
b. TMK(s): (1) 1-9-001:001
3. HAZARD POTENTIAL CLASSIFICATION
a. Hazard Classification: High
b. Emergency Action Plan: Yes