Upper Big Bethel Dam dam
Upper Big Bethel Dam
Upper Big Bethel Dam, located in Newport News, Virginia, is a Federal-owned structure managed by the US Air Force. The dam, constructed by the US Army Quartermaster Corps, spans the Brick Kiln Creek and serves primarily for recreational purposes. Standing at 18 feet in height and 950 feet in length, the earth dam has a storage capacity of 1430 acre-feet and a surface area of 260 acres.
With a significant hazard potential and a moderate risk assessment rating, Upper Big Bethel Dam is monitored and inspected by the US Air Force every 5 years. The dam features an uncontrolled spillway with a width of 105 feet and a maximum discharge capacity of 420 cubic feet per second. Although the condition assessment is not available, the structure is considered to meet regulatory guidelines and poses a moderate risk of failure.
The dam, with its stone buttress core and unlisted/unknown foundation, plays a crucial role in water resource management and flood control in the region. Despite its status as a recreational facility, Upper Big Bethel Dam requires careful monitoring and maintenance to ensure the safety of surrounding communities and the preservation of the environment.
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 Upper Big Bethel Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Blackwater River Near Dendron | 2 cfs | → |
| Blackwater River Near Franklin | 18 cfs | → |
| Dragon Swamp At Mascot | 13 cfs | → |
| Chickahominy River Near Providence Forge | 24 cfs | → |
| Pasquotank River Near South Mills | 26 cfs | → |
| Nottoway River Near Sebrell | 118 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Upper Big Bethel Dam.
Boat launches
- Tide Mill Road 711, York County
- Cedar Road 255, Poquoson
- Oriana Road Burts
- Huntington Park Municipal Boat Ramp
- West River Point Drive 48, Hampton
- Messick Road 470, Poquoson
Track Upper Big Bethel 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 Upper Big Bethel Dam
Where does the data for Upper Big Bethel 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.
Other water bodies near here
Snoflo-tracked reservoirs and dams within driving distance of Upper Big Bethel Dam.