Largest Reservoirs in Guam
Guam has 1 dams with recorded storage capacity. The largest is Fena Dam with 9,500 acre-feet of maximum storage. One acre-foot equals about 326,000 gallons — enough to supply roughly two households for a year.
| # | Dam | County | Max Storage (acre-ft) | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|---|
| 1 | Fena Dam | Guam | 9,500 | 135 | Water Supply | 1950 |