Unadilla River at Rockdale
Flood levels
Official flood levels at this gauge: action stage begins at 8.0 ft; minor flooding begins at 11.0 ft; moderate flooding begins at 12.0 ft; major flooding begins at 13.0 ft.
| Action stage | 8.0 ft |
|---|---|
| Minor flooding | 11.0 ft |
| Moderate flooding | 12.0 ft |
| Major flooding | 13.0 ft |
Highest recorded crests
- 14.2 ft on Sep 8, 2011 (historic crest)
- 14.0 ft on Jun 29, 2006 (historic crest)
- 13.0 ft on Dec 31, 1942 (historic crest)
- 12.6 ft on Mar 14, 1977 (historic crest)
What the water does
National Weather Service impact statements for this gauge, in the Weather Service's own words.
| 11.0 ft | Flood stage. Widespread flooding of farmland occurs along the river. County Route 8 at the intersection of High Bridge Road is flooded. |
|---|---|
| 12.0 ft | Moderate flood stage. Several homes and businesses are flooded in various spots along Route 8 between Rockwells Mills and Sidney. Flooding reaches properties and residences on County Route 1 at Rockdale. Hitching Post Lane floods. Residences on County Road 1B and the lower parts of Tall Pines Campground are flooded. |
| 12.6 ft | Numerous cellars along the river are flooded. |
| 13.0 ft | Major flood stage. Much of Route 8 is flooded north and south of Rockdale including several residences and businesses. Flooding threatens residences in Mount Upton along Bridge Street. Damages at this stage are typically severe. |
| 14.0 ft | Flood level of June 2006. Flooding was widespread and severe with water several feet deep in many locations near the river along Route 8 from Mount Upton to Sidney. |
| 14.2 ft | Record flood event of september 2011. Widespread and severe flood inundation occurred to residences and businesses along the river. Millions of dollars in damage were reported. |
Forecast office: NWS Johnson City · River Forecast Center: Middle Atlantic River Forecast Center.
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Nearby stations and gauges
- Susquehanna River at Sidney NWS gauge · 4.3 mi
- Susquehanna River at Unadilla NWS gauge · 6.0 mi
- Susquehanna River at Bainbridge NWS gauge · 7.0 mi
- Ouleout Creek below East Sidney Dam NWS gauge · 9.3 mi
- Ouleout Creek at East Sidney Dam NWS gauge · 9.6 mi
- Carrs Creek near Sidney Center NWS gauge · 9.9 mi