Pillar Creek Dam No. 2.b
Pillar Creek Dam No. 2.b is a rockfill dam located in Kodiak Island Borough, Alaska, built in 1968. It carries a Significant hazard potential classification and has a fair condition assessment.
About Pillar Creek Dam No. 2.b
The primary purpose of Pillar Creek Dam No. 2.b is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by City Of Kodiak (local government). It impounds the Pillar Creek.
The dam stands 17 feet tall and stretches 250 feet across, creates a reservoir covering 12 acres, has a maximum storage capacity of 123 acre-feet, and collects water from a drainage area of 4 square miles. Completed in 1968, the structure is well into its service life at over 50 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 05/21/2019.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Alaska |
| County | Kodiak Island Borough |
| River/Stream | Pillar Creek |
| Coordinates | 57.80306, -152.43570 |
Physical Characteristics
| Dam Type | Rockfill |
| NID Height | 17 ft |
| Dam Height | 17 ft |
| Dam Length | 250 ft |
| Year Completed | 1968 (58 years old) |
Storage & Hydraulics
| NID Storage | 123 acre-ft |
| Max Storage | 123 acre-ft |
| Normal Storage | 123 acre-ft |
| Surface Area | 12 acres |
| Drainage Area | 4 sq mi |
| Max Discharge | 900 cfs |
Ownership & Safety
| Purpose | Water Supply |
| Owner | CITY OF KODIAK |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 05/21/2019 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | AK00071 |
| Federal ID | AK00071 |
| More Info | State Dam Safety Program |