Lake Hattie dam
Lake Hattie
Lake Hattie, located in Albany County, Wyoming, is a privately owned irrigation reservoir with a significant storage capacity of 130,182 acre-feet. Constructed in 1912, the earth dam stands at a height of 43 feet and has a spillway width of 100 feet for uncontrolled releases. The reservoir covers a surface area of 3,032 acres and is fed by the offstream flow of the Laramie River.
With a drainage area of 31.6 square miles, Lake Hattie plays a crucial role in supporting agricultural activities in the region. The dam, designed by Paul A. Rechard, is regulated and inspected by the Wyoming State Engineer's Office, ensuring its structural integrity and compliance with state regulations. Despite being categorized as having a significant hazard potential, the dam's condition assessment in 2020 rated it as fair, indicating a moderate risk level.
Although Lake Hattie's primary purpose is irrigation, the reservoir also serves as a recreational spot for fishing and boating enthusiasts. As a key water resource in the area, the reservoir's management and maintenance are essential to sustain water supply for agricultural operations and preserve the ecosystem. Climate and water resource enthusiasts can appreciate the engineering behind Lake Hattie and its role in supporting both human activities and environmental conservation efforts.
Dam data reference
Condition Assessment
- Satisfactory
- No existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
- Fair
- No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action.
- Poor
- A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency.
- Unsatisfactory
- A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
- Not Rated
- The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Hazard Potential Classification
- High
- Dams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
- Significant
- Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environmental damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
- Low
- Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
- Undetermined
- Dams for which a downstream hazard potential has not been designated or is not provided.
Plan around the weather
Same NOAA / yr.no feed Snoflo's iOS app uses. Watch the precipitation column on the meteogram -- rain on the basin upstream typically lifts inflow 24-72 hours later.
Next 5 days, hour by hour
Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.
5-day forecast table
Every 3 hours, broken out across temperature, snow, rain, humidity, and wind. Each cell is colour-coded relative to the column min/max.
| Time | Condition | Temp (°F) | Snow (in) | Rain (in) | Humidity (%) | Wind (mps) | Wind dir |
|---|---|---|---|---|---|---|---|
| Loading detailed forecast… | |||||||
15-day temperature & precipitation
Daily temperatures, snow, and rain projected over the next two weeks.
Nearby streamflow gauges
USGS streamgauges around Lake Hattie -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Little Laramie River Near Filmore | 671 cfs | → |
| Pioneer Canal Near Woods | 174 cfs | → |
| Laramie R Bl Pioneer Canal Nr Woods Landing | 1,010 cfs | → |
| Laramie River At Laramie | 17 cfs | → |
| Sand Creek At Colorado-Wyoming State Line | 3 cfs | → |
| Laramie River Near Bosler | 1,950 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Lake Hattie.
Boat launches
- Lake Hattie Road Albany County
- Lake Hattie Reservoir Boat Ramp
- Twin Buttes Reservoir Boat Ramp
- Twin Buttes Reservoir Boat Launch
- Albany County
- Herrick Lane Albany County
Campgrounds
- Lake Hattie Public Access Area - Wgf
- Twin Buttes Reservoir Public Access - Wgf
- Meeboer Lake Access Area - Wgf
- Lake Owen Campground
- Lake Owen
- Jelm Wildlife Habitat Management Area Camping
Fishing spots
Paddle runs
- South Sec Line, Sec 2, T11n, R80w To Co/Wy Stateline
- Co/Wy Stateline To Douglas Creek
- Northgate Canyon
- End Of Four-Wheel Drive Road To Pearl Creek In Se 1/4 Sec 21, T10n, R74w
- Pearl Creek To Junction Of Road West Of Creedmore Lakes In Sw 1/4 Sec 5, T10n, R73e
- Source In Se 1/4 Sec 25, T10n, R75w To End Of The Four-Wheel Drive Road East Of The Nf Poudre Campground (Nw 1/4 Of Sec 21, T10n, R74w
More reservoirs
Track Lake Hattie in the Snoflo app
Save this dam as a favorite and get the local NOAA / yr.no forecast plus regional flow context wherever you are.
About Lake Hattie
Where does the data for Lake Hattie come from?
Structural and regulatory data come from the U.S. Army Corps of Engineers' National Inventory of Dams (NID). Weather forecast comes from NOAA / yr.no -- the same feed Snoflo's iOS app uses.
How often is the report updated?
NID structural data refreshes annually as the Corps publishes updated assessments. The weather forecast refreshes throughout the day.
What does the Significant hazard rating mean?
The Corps of Engineers' hazard potential classification grades probable consequences if the dam fails: High = probable loss of human life; Significant = no probable loss of human life but possible economic loss / environmental damage; Low = no probable loss of human life, only minor economic / environmental losses. See the Dam Data Reference card above for the full definitions.
What's "% of normal"?
The current storage value compared to the historical average storage on this calendar day. 100% = right on average; values above 100% mean above-normal storage (wet year); values below mean below-normal (dry year or drought).
Can I get alerts when storage crosses a threshold?
Yes -- alerts are managed in the Snoflo iOS app. Favorite this dam, set a threshold, and you'll get a push the moment conditions cross.
Other water bodies near here
Snoflo-tracked reservoirs and dams within driving distance of Lake Hattie.