Monocacy Boulevard Dam dam
Monocacy Boulevard Dam
Monocacy Boulevard Dam, also known as the I-70 Dam, is a state-owned structure located in the City of Frederick, Maryland. This earth dam was completed in 2011 and serves primarily for flood risk reduction along the Carroll Creek-TR. Standing at a height of 15 feet with a hydraulic height of 15 feet, the dam spans a length of 800 feet and has a storage capacity of 194.6 acre-feet.
The dam's spillway, two feet wide, is of the controlled type, ensuring efficient water release during peak flow events. Despite a fair condition assessment in 2021, the dam's hazard potential is considered high, with a very high risk assessment ranking (1). The structure is inspected every three years, with the last assessment conducted in August 2019, indicating a need for ongoing monitoring and maintenance to ensure public safety and continued flood protection for the surrounding area.
Managed by the Maryland Dam Safety agency, Monocacy Boulevard Dam plays a crucial role in mitigating flood risks and safeguarding communities in the region. Its strategic location and design highlight the intersection of water resource management and climate resilience, making it a key asset for enthusiasts seeking to understand the dynamics of dam infrastructure in addressing environmental challenges in Maryland.
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 Monocacy Boulevard Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Monocacy River At Jug Bridge Near Frederick | 218 cfs | → |
| Monocacy River At Monocacy Blvd At Frederick | 180 cfs | → |
| Bennett Creek At Park Mills | 17 cfs | → |
| Catoctin Creek Near Middletown | 17 cfs | → |
| Potomac River At Point Of Rocks | 2,680 cfs | → |
| Catoctin Creek At Taylorstown | 18 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Monocacy Boulevard Dam.
Boat launches
- Frederick
- Chesapeake And Ohio Canal Trail Frederick County
- Chesapeake And Ohio Canal Trail Point Of Rocks
- Chesapeake And Ohio Canal Frederick County
- South Maple Avenue 105, Brunswick
- Petersville Road Brunswick
Campgrounds
Fishing spots
- Culler Lake
- Hunting Creek Lake
- Little Owens Creek
- Potomac River Reservoir
- Chesapeake And Ohio Canal
- Fenwick Branch
Track Monocacy Boulevard 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.
About Monocacy Boulevard Dam
Where does the data for Monocacy Boulevard 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 High 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 Monocacy Boulevard Dam.