Dam Report

Parvin dam

Colorado, USA South Lone Pine Hazard Significant
Today high
--
Tonight low
--
Dam height
45ft
Hazard rating
Significant
Loading current conditions…
Loading next 24 hours…
Loading 7-day outlook…
Parvin -- None dam
Parvin None · South Lone Pine
About this dam

Parvin

Parvin, also known as Haviland, is a state-owned structure located in Larimer County, Colorado, specifically in Fort Collins. This dam, completed in 1925, serves primarily as a Fish and Wildlife Pond, with additional purposes including recreation. Standing at a height of 45 feet, Parvin boasts a significant hydraulic height of 58 feet and a structural height of 68 feet, making it a crucial water resource for the area.

With a storage capacity of 1300 acre-feet and a surface area of 60 acres, Parvin plays a vital role in managing the South Lone Pine river/stream. The dam, classified as an Earth dam type, features an uncontrolled spillway with a width of 35 feet. Despite its age, Parvin has been assessed to be in satisfactory condition, with a moderate risk level assigned to it. Regular inspections and maintenance ensure its structural integrity and the safety of downstream communities, highlighting the importance of effective water resource management in the face of changing climate conditions.

Managed by the Colorado State agency and regulated by the Department of Water Resources (DWR), Parvin represents a key infrastructure for both wildlife conservation and recreational activities in the region. Its historical significance, combined with its functional role in water storage and flood control, underscores the importance of sustainable water resource management practices in mitigating the impacts of climate change and ensuring the resilience of our ecosystems.

StateNone
River / streamSouth Lone Pine
NID IDCO01170
Owner typeState
Primary purposeFish And Wildlife Pond
Dam typeEarth
Year built1925
Dam height45 ft
Dam length427 ft
Max storage1,300 AF
Normal storage700 AF
Surface area60.0 ac
Drainage area17.0 sq mi
Hazard potentialSignificant
ConditionSatisfactory
Last inspectionWed, 14 Aug 2019 00:00:00 GMT

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.
Detailed forecast

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.

Hourly detail

Next 5 days, hour by hour

Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.

Loading hourly forecast…
Deep dive

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.

TimeConditionTemp (°F)Snow (in)Rain (in)Humidity (%)Wind (mps)Wind dir
Loading detailed forecast…
Long-term outlook

15-day temperature & precipitation

Daily temperatures, snow, and rain projected over the next two weeks.

Loading 15-day outlook…
Regional inflow

Nearby streamflow gauges

USGS streamgauges around Parvin -- inflows here typically show up in storage 24-72 hours later.

Track Parvin 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.

FAQ

About Parvin

Where does the data for Parvin 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.

More reservoirs

Other water bodies near here

Snoflo-tracked reservoirs and dams within driving distance of Parvin.

Premium feature

Favorites and alerts are part of Snoflo Premium. Save reservoirs, set storage thresholds, and get push notifications when conditions cross.

Upgrade to Premium Not now
🔔

Manage alerts in the Snoflo app

Custom alerts are configured in the iOS app -- favorite this dam, set a threshold, and you'll get a push the moment conditions cross.

Open App Store