Sebastian Martin Site 6 Dam, also known as Estaca Arroyo Retard Dam, is a crucial structure in Rio Arriba, New Mexico, designed by the USDA NRCS to reduce flood risks along the Estaca Arroyo river.
Wind
Humidity
Completed in 1973, this earth dam stands at a height of 93 feet and stretches 550 feet in length, providing a storage capacity of 1022 acre-feet and covering a surface area of 45 acres. With a maximum discharge capacity of 1439 cubic feet per second, this dam plays a vital role in managing water flow and mitigating flood risks in the region.
Despite its importance, the dam is currently assessed to be in poor condition with a high hazard potential, prompting a moderate risk assessment rating. The Office of the State Engineer in New Mexico regulates and inspects the dam periodically to ensure its structural integrity and operational efficiency. With a spillway width of 200 feet and uncontrolled spillway and outlet gates, the dam poses significant challenges in emergency response and risk management. As water resource and climate enthusiasts, understanding the complexities and vulnerabilities of dams like Sebastian Martin Site 6 is essential for promoting sustainable water management practices and enhancing the resilience of our communities in the face of changing environmental conditions.
Year Completed |
1973 |
Dam Length |
550 |
Dam Height |
80 |
River Or Stream |
ESTACA ARROYO |
Primary Dam Type |
Earth |
Surface Area |
45 |
Hydraulic Height |
80 |
Drainage Area |
2 |
Nid Storage |
1022 |
Structural Height |
93 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
High |
Foundations |
Unlisted/Unknown |
Nid Height |
93 |
Rio Chama Near Chamita
|
1280cfs |
Rio Grande At Embudo
|
617cfs |
Embudo Creek At Dixon
|
41cfs |
Santa Cruz River Near Cundiyo
|
32cfs |
Rio Ojo Caliente At La Madera
|
16cfs |
Rio Grande At Otowi Bridge
|
1960cfs |