Little Yellow 11, also known as Structure 29, is a gravity dam located in Juneau, Wisconsin, along the Spencer Robinson Ditch.
Wind
Humidity
Completed in 1975, this Federal-owned dam serves primarily for irrigation purposes, with additional functions including recreation and water supply. Standing at a height of 15 feet and a length of 72 feet, Little Yellow 11 has a storage capacity of 1200 acre-feet and a drainage area of 8 square miles.
Despite being classified as having a low hazard potential, Little Yellow 11 is rated as having a very high risk due to its condition assessment being unrated. The dam has not been inspected recently, with an inspection frequency of 10 years. Emergency action plans and risk assessment are lacking, indicating a need for improved safety measures and management. The dam's location in a high-risk area underscores the importance of proactive measures to mitigate potential risks and ensure the safety of surrounding communities.
As an integral part of the water infrastructure in Wisconsin, Little Yellow 11 plays a crucial role in irrigation and water supply in the region. With its controlled spillway and moderate storage capacity, the dam serves as a key resource for managing water levels and supporting agricultural activities. However, the lack of recent inspections and emergency preparedness highlights the need for increased attention to safety protocols and risk management to safeguard the dam and surrounding areas from potential hazards.
Year Completed |
1975 |
Dam Length |
72 |
Dam Height |
15 |
River Or Stream |
SPENCER ROBINSON DITCH |
Primary Dam Type |
Gravity |
Surface Area |
200 |
Hydraulic Height |
9 |
Drainage Area |
8 |
Nid Storage |
1200 |
Structural Height |
15 |
Hazard Potential |
Low |
Nid Height |
15 |
Yellow River At Necedah
|
52cfs |
Yellow River At Babcock
|
44cfs |
Tenmile Creek Near Nekoosa
|
27cfs |
Lemonweir River At New Lisbon
|
261cfs |
Wisconsin River At Wisconsin Rapids
|
1960cfs |
Black River Ds St Hwy 54 @ Black River Falls
|
514cfs |
| Location | Reservations | Toilets |
|---|---|---|
Juneau County Wilderness Park Campground
|
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Petenwell County Park Annex Campground
|
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Petenwell County Park Main Campground
|
Petenwell Lake - 20th Drive Access - Wisconsin River Power Company (WRPCO)
Petenwell Lake - Wilderness Park Access
Petenwell Lake -- 20th Drive Access
Wisconsin River / Petenwell Flowage -- Access off Blackhawk Dr.
Petenwell Lake -- Petenwell Park Access off Bighorn Dr. (Adams Co)
Wisconsin River -- Access at Hwy 21 - Town Of Strongs Prairie