Dam Report

Parvin Lake Dam dam

New Jersey, USA Muddy Run Hazard Significant
Today high
--
Tonight low
--
Dam height
12ft
Hazard rating
Significant
Loading current conditions…
Loading next 24 hours…
Loading 7-day outlook…
Parvin Lake Dam -- None dam
Parvin Lake Dam None · Muddy Run
About this dam

Parvin Lake Dam

Parvin Lake Dam, located in Salem County, New Jersey, is a state-managed structure built in 1925 primarily for recreational purposes. This earth dam stands at a height of 12 feet, with a length of 1500 feet and a storage capacity of 180 acre-feet. The dam impounds Muddy Run, creating a surface area of 94 acres and serving as a popular spot for outdoor activities in the Pittsgrove Township area.

Managed by the New Jersey Department of Environmental Protection (NJDEP), Parvin Lake Dam is regulated, permitted, inspected, and enforced by state authorities to ensure its safety and compliance with regulations. Despite its significant hazard potential, the dam's condition has been assessed as satisfactory during the last inspection in October 2020. Emergency action plans are in place, with the last revision in April 2021, although further risk assessment and management measures may be needed to address potential hazards and ensure public safety.

Overall, Parvin Lake Dam serves as a vital recreational resource in the region, providing opportunities for outdoor enthusiasts to enjoy the natural beauty of the area. While efforts are in place to maintain its safety and functionality, ongoing monitoring and risk assessment are essential to mitigate potential hazards and ensure the long-term sustainability of this important water resource in New Jersey.

StateNone
River / streamMuddy Run
NID IDNJ00440
Owner typeState
Primary purposeRecreation
Dam typeEarth
Year built1925
Dam height12 ft
Dam length1,500 ft
Normal storage180 AF
Surface area94.0 ac
Drainage area46.0 sq mi
Hazard potentialSignificant
ConditionSatisfactory
Last inspectionTue, 20 Oct 2020 12:00:00 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 Lake Dam -- inflows here typically show up in storage 24-72 hours later.

Track Parvin Lake Dam 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 Lake Dam

Where does the data for Parvin Lake Dam 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 Lake Dam.

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