Dam Report

Bohemia Mill (Old Telegraph Road) dam

Maryland, USA Great Bohemia Creek Hazard Low
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Tonight low
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Dam height
15ft
Hazard rating
Low
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Bohemia Mill (Old Telegraph Road) -- None dam
Bohemia Mill (Old Telegraph Road) None · Great Bohemia Creek
About this dam

Bohemia Mill (Old Telegraph Road)

Bohemia Mill (Old Telegraph Road) is a historic dam located in Cecil, Maryland, along the banks of the Great Bohemia Creek. Built in 1913, this Earth-type dam stands at a height of 15 feet and stretches 356 feet in length, serving a vital purpose in water resource management. With a storage capacity of 228 acre-feet and a drainage area of 4.6 square miles, the dam plays a crucial role in regulating water flow and mitigating flood risks in the area.

Managed by the local government and regulated by the Maryland Dam Safety agency, Bohemia Mill undergoes regular inspections to ensure its structural integrity and hazard potential are in check. With a low hazard potential rating and a moderate risk assessment of 3, the dam is considered to be in satisfactory condition, despite not being formally rated. The dam's spillway type is uncontrolled, with a width of 21 feet, and it has not experienced any significant modifications since 2002, when hydraulic improvements were made.

Overall, Bohemia Mill (Old Telegraph Road) stands as a testament to Maryland's commitment to responsible water resource management. With its rich history, strategic location, and essential role in controlling water flow along the Great Bohemia Creek, the dam serves as a valuable asset for both the local community and the environment. As climate change continues to impact our water resources, the importance of maintaining and monitoring structures like Bohemia Mill becomes increasingly vital for sustainable water management in the region.

StateNone
River / streamGreat Bohemia Creek
NID IDMD00158
Owner typeLocal Government
Dam typeEarth
Year built1913
Dam height15 ft
Dam length356 ft
Max storage228 AF
Normal storage51 AF
Surface area28.7 ac
Drainage area4.6 sq mi
Hazard potentialLow
ConditionNot Rated
Last inspectionFri, 12 Aug 2016 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.

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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
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Long-term outlook

15-day temperature & precipitation

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

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Regional inflow

Nearby streamflow gauges

USGS streamgauges around Bohemia Mill (Old Telegraph Road) -- inflows here typically show up in storage 24-72 hours later.

Track Bohemia Mill (Old Telegraph Road) 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 Bohemia Mill (Old Telegraph Road)

Where does the data for Bohemia Mill (Old Telegraph Road) 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 Low 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.