Little Yellow 11 is a gravity dam located in Juneau County, Wisconsin, built in 1975. It carries a Low hazard potential classification.
Dam profile
NID height · 15 ft15 ft tall and 72 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic concrete gravity section and the water level is illustrative.
About Little Yellow 11
The primary purpose of Little Yellow 11 is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by U.s. Department of the Interior (federal). It impounds the Spencer Robinson Ditch.
The dam stands 15 feet tall and stretches 72 feet across, creates a reservoir covering 200 acres, has a maximum storage capacity of 1,200 acre-feet, and collects water from a drainage area of 8 square miles. Completed in 1975, the structure is well into its service life at over 50 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life.
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Location
| State | Wisconsin |
| County | Juneau |
| Nearest City | None |
| River/Stream | Spencer Robinson Ditch |
| Coordinates | 44.15244, -90.14174 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 15 ft |
| Dam Height | 15 ft |
| Dam Length | 72 ft |
| Year Completed | 1975 (51 years old) |
Storage & Hydraulics
| NID Storage | 1,200 acre-ft |
| Max Storage | 1,200 acre-ft |
| Normal Storage | 600 acre-ft |
| Surface Area | 200 acres |
| Drainage Area | 8 sq mi |
| Max Discharge | 1,260 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | U.s. Department of the Interior |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | No |
Identifiers
| NID ID | WI00574 |
| Federal ID | WI00574 |
| More Info | State Dam Safety Program |