| Dam Name | Conowingo |
| Incident Date | 1/4/2010 |
| Country | United States |
| State/Province | Maryland |
| Dam Height (m) | 28.7 |
| Uncontrolled Release of the Reservoir | No |
| Dam Type | |
| Detailed Dam Type | Gravity;Concrete |
| Incident Type | Gate Operations |
| Incident Description | Licensee reported on January 4, 2010 that due to the high winds over the past few days, wind blown spray from the reservoir has encased the gantry crane and rails in thick ice which has disabled the gantry crane. The gantry crane is used to open the spillway gates. |
| High Level Failure Mode | |
| Lessons Learned | |
| Initiating Event | Wind; Ice |
| Initiating Event Description | Licensee reported on January 4, 2010 that due to the high winds over the past few days, wind blown spray from the reservoir has encased the gantry crane and rails in thick ice which has disabled the gantry crane. |
| Structures/Components | Embankment |
| Failure Mode Description | |
| Emergency Action Plan Implemented | Unknown |
| Consequences | Consequence Data Unavailable |
| Geographic Coordinates - Decimal Degrees | 39.6609, -76.1733 |
| Normal Reservoir Storage (m3): | 371,770,872.0 |
| Crest Elevation (m) |