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NormalMulti-purpose

Shihgang Dam

Central · 大甲溪 Basin

Capacity

2.4 hm³

Coordinates

24.281°N, 120.769°E

Operator

Water Resources Agency (WRA)

64.9% full

Current fill

64.9%
Normal

vs 7 days ago

0.0%

stable

vs 1 year ago

N/A

7-day trend

→

stable

Catchment Weather

Past 30 days + 14-day forecast · Open-Meteo

Technical specifications

Total capacity2.4 hm³
Usable capacity1.11 hm³
Dam height21.4 m
Dam typegravity
Year built1977
Primary useMulti-purpose
OperatorWater Resources Agency (WRA)
River大甲溪
Autonomous communityCentral
River basin大甲溪 Basin
Data source:WRA·Last reading: 2026-10-02

Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 24.281, 120.769 · Open in Google Maps

About Shihgang Dam

As of October 2, 2026, Shihgang Dam is filled to 64.9% of its total capacity, holding roughly 1 hm³ of water out of a maximum 2 hm³. At this level the reservoir is within its normal operating range. Of that total, about 1 hm³ is usable (live) storage.

Over the most recent week on record the fill level has held broadly steady (+0.0 pts).

Across the readings we hold for Shihgang Dam — 1 data points between October 2, 2026 and October 2, 2026 — the level has ranged from a low of 64.9% (October 2, 2026) to a high of 64.9% (October 2, 2026).

The dam at Shihgang Dam stands 21.4 m tall and is a gravity dam and was completed in 1977. It is operated by Water Resources Agency (WRA) primarily for multiple purposes. It lies within the 大甲溪 Basin basin at 24.281°N, 120.769°E.

Key facts

Current fill level
64.9%
Water stored
1 hm³
Total capacity
2 hm³
Usable capacity
1 hm³
7-day change
No change
Primary use
Multipurpose
River
大甲溪
River basin
大甲溪 Basin
Dam height
21.4 m
Year completed
1977
Operator
Water Resources Agency (WRA)
Coordinates
24.281°N, 120.769°E
Last updated
October 2, 2026

Recent readings

DateFill levelVolume (hm³)
2 Oct 202664.9%1

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