Navajo Dam (Navajo Reservoir)

Field Descriptions

Dam Name: Navajo
NID ID: NM00120
Longitude: -107.60833
Latitude: 36.80833
County: SAN JUAN, RIO ARRIBA
River: SAN JUAN RIVER
State: NM
Nearest City: BLOOMFIELD
Distance: 25.00 miles
Owner Name: DOI BR
Owner Type: Federal
Private Dam? No
Dam Type: Earth
Core: Bituminous Concrete (Type)
Foundation: RK
Purposes: Flood Control
Year Completed: 1962
Dam Length: 3648 feet
Dam Height: 402 feet
Structural Height: 402 feet
Hydraulic Height: 382 feet
Maximum Discharge: 34000 cu ft/sec
Maximum Storage: 1986600 acre-feet
Normal Storage: 1708600 acre-feet
Surface Area: 15610 acres
Drainage Area: 3190 square miles
Hazard Potential: High
Emergency Action Plan? Yes
Inspection Date: 2012-04-12
Inspection Frequency: 1
State Regulated Dam? No
Spillway Type: Uncontrolled
Spillway Width: 132 feet
Volume of Dam: 26840900 cubic yards
Federal Regulatory Agency:
Federal Inspection Agency: Department of Interior;
Bureau of Reclamation
Federal Operating Agency: Department of Interior;
Bureau of Reclamation
Federal Owner (Agency): Department of Interior;
Bureau of Reclamation
Other Federal Agencies: Department of Interior;
Bureau of Reclamation
Source Agency: Department of Interior;
Bureau of Reclamation

Dam Safety For Boats

A large amount of water can be released from a dam without any warning at any time and by any means. For example, when the demand for electricity is high, the turbines at a dam may be turned on automatically, resulting in a significant increase in the downstream flow of water in only a matter of seconds.

If there's a need to release water through the sluiceways (outlets at the base of the dam), this operation can also create a great swell of discharged water downstream.

During flood operations, any or all spillway gates across the width of a dam can be opened to release upstream flood water that needs to pass to the next downstream reservoir. Upstream or downstream, even the most experienced boater with the strongest motor is no match for this strong flow of water plunging over a spillway of a dam. Even if you're boating far downstream of a spilling dam, recirculating current can pull a powerful boat upstream toward plunging water that could shred any boat.

Some dams equipped with navigation locks create turbulent water as well. When vessels pass through, strong flow is released near the exhaust ports of the wing wall of the lock.

Warning Systems At Dams

To warn reservoir users of potential danger, warning devices are installed at many dams:




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