Norrell Lock And Dam dam
Norrell Lock And Dam
Norrell Lock and Dam, also known as Arkansas Post Canal, is a federal-owned structure located in Arkansas City, Arkansas. Completed in 1967 by the US Army Corps of Engineers, this concrete gravity dam serves primarily for navigation purposes along the Arkansas River. Standing at a height of 7 feet and with a length of 490 feet, the dam has a storage capacity of 1,510 acre-feet and a maximum discharge rate of 371,200 cubic feet per second.
Despite its moderate risk assessment, Norrell Lock and Dam is subject to potential hazards associated with flooding and water management. The USACE implements various risk management measures to mitigate these risks, including regular monitoring, maintenance, and collaboration with local emergency managers. An emergency action plan is in place, and the dam is equipped with spillways and locks to regulate water levels and ensure structural integrity. It is essential for water resource and climate enthusiasts to stay informed about the dam's status and preparedness in case of emergencies.
Overall, Norrell Lock and Dam stands as a vital infrastructure for water navigation and management in Arkansas. Its role in flood risk reduction and water control makes it a critical element in the region's water resource management system. As efforts continue to safeguard the dam and surrounding communities, ongoing monitoring and risk assessment remain crucial to ensure the safety and resilience of this key water resource structure.
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 Norrell Lock And Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Bayou Bartholomew At Garrett Bridge | 19 cfs | → |
| Bayou Bartholomew Near Mcgehee | 66 cfs | → |
| Big Sunflower River Nr Merigold | 338 cfs | → |
| Big Sunflower River At Clarksdale | 1 cfs | → |
| Bogue Phalia Nr Leland | 29 cfs | → |
| Big Sunflower River At Sunflower | 572 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Norrell Lock And Dam.
Boat launches
- Tedford Island Road Arkansas County
- Phillips Road 549 Phillips County
- Lake Road Bolivar County
- Monroe County
- Sigmon Road Coahoma County
Campgrounds
- Merrisach Lake Park - Merrisach Lake
- Notrebes Bend
- Wilbur D Mills
- Pendleton Bend
- Great River Road State Park
- Lake Charlie Capps
Fishing spots
Track Norrell Lock And 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 Norrell Lock And Dam
Where does the data for Norrell Lock And 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 Norrell Lock And Dam.