Nambe Falls Dam

Overview

Nambe Falls Dam,  a concrete and earth embankment structure is 150 feet high. Construction began on June 13, 1974 and was completed on June 28, 1976. The storage reservoir provides supplemental irrigation for the Pojoaque Valley Irrigation District and the pueblos of San Ildefonso, Nambe, and Pojoaque.

Geology

The dam is located about 300 feet upstream from Nambe  Falls which forms the sharp break between the Sangre de Cristo mountains  on the east and the Espanola Basin on the west. The dam is situated in  a 500-foot-long southwesterly trending gorge. The concrete arch dam  and thrust block are founded on a northeasterly trending fault slice of  Precambrian Embudo granite complex (consisting of granite and granite  gneiss with intrusive pegmatite and inclusions of schist and gneiss)


General
RegionFacilities in Upper Colorado | Upper Colorado Home Page
StateNew Mexico
CountySante Fe
ProjectSan Juan-Chama
Dam TypeConcrete and Earth Embankment
ReservoirNambe Falls
WatercourseRio Nambe
Location25 mi N of Santa Fe, NM
Longitude-105.90581059455872
Latitude35.84533186008363
Original Construction1974-1976
Modified Construction
National ID NumberNM00412
Hydrologic Unit Code

Dimensions
Structural Height150.00 ft
Hydraulic Height (Normal Operating Depth at Dam)134.8 ft
Top Parapet (Elevation)
Spillway Crest Elevation
Crest Elevation6840.00 ft
Crest Length1,021 ft
Crest Width5.0 ft
Base Width15.0 ft
Volume of Dam Construction Materials238.672 cu yds
Streambed at Dam Axis6760.9 ft
Top of Exclusive Flood Control Pool (Elevation)
Top of Joint Use Pool (Elevation)
Top of Active Conservation Pool (Elevation)6826.6 ft
Top of Inactive Conservation Pool (Elevation)6780.0 ft
Top of Dead Storage Pool (Elevation)6760.9 ft

Hydraulics & Hydrology
Total Water Storage at Elevation2023.0 acre-ft at 6826.6
Maximum Water Surface Elevation6839.8 ft
Normal Water Surface Elevation
Spillway Type
Auxiliary Spillway
Spillway Capacity at Elevation2023 cu ft and EL 6826.6
Auxiliary Spillway Capacity at Elevation
Uncontrolled Spillway Capacity at Elevation
Outlet Works Capacity at Elevation
Diversion Capacity at Elevation
Drainage Area35.0 sq mi
Hydrometeorological Report (HMR)HMR 55
Probable Maximum Flood (PMF) Report1987 Summer-Fall Rain storm

Contact Information
Owner
TitleArea Office Manager
OrganizationAlbuquerque Area Office
Address555 Broadway NE, Suite 100
CityAlbuquerque, NM 87102-2352
Phone (Office)505 462-3542
Operator
OrganizationPojoaque Valley Irrigation District
AddressBox 3511
CitySanta Fe, NM 87501
Phone (Office)505 455-2693


Last updated: Apr 08, 2009