Little North Santiam River Near Mehama, Or Realtime Data
LITTLE NORTH SANTIAM RIVER NEAR MEHAMA, OR
Realtime Data • Report • Conditions
70
Discharge (cfs)
2.8
Gauge Height (ft)
USGS 14182500
Streamflow discharge was last observed at 70 cfs, and a gauge height of 2.77 feet.
With the
% decrease since yesterday,
the streamflow average over the past 10 days is 79 .
Weather today, Tomorrow,
The river is primarily fed by snowmelt and rainfall, with potential tributaries including the Quartzville Creek and Henline Creek. Seasonal trends show higher flows during the winter and spring months, and lower flows during the summer and fall. There are no major dams on the Little North Santiam River, but there are several small diversion structures used for irrigation purposes. Interestingly, the river is home to a unique species of freshwater mussel, the Oregon floater, which is only found in a few select streams in Oregon.
July 26, 2026
| Elevation | 662.0 ft |
| Last Updated | |
| Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 ±2.5°, formazin nephelometric units (FNU) | 4.9 FNU |
| Gage height, ft | 2.77 ft |
| Chlorophyll a, estimated, water, in-situ, in-vivo fluorescence (IVF), relative fluorescence units (RFU) | 0.83 RFU |
| Chlorophyll a, estimated, water, in-situ, in-vivo fluorescence (IVF), concentration estimated from reference material, micrograms per liter | 0.09 ug/l |
| Streamflow, ft³/s | 70.2 ft3/s |
| Phycocyanins (cyanobacteria), water, in situ, fluorometric method, excitation at 590 ±15 nm, emission at 685 ±20 nm, micrograms per liter | 0.1 ug/l |
| Specific conductance, water, unfiltered, microsiemens per centimeter at 25°C | 45.0 uS/cm @25C |
| Dissolved oxygen, water, unfiltered, mg/L | 8.1 mg/l |
| Colored dissolved organic matter (CDOM), water, in situ, single band excitation, fluorescence emission, ppb QSE | 3.03 ug/l QSE |
| pH, water, unfiltered, field, standard units | 7.4 std units |
| Temperature, water, °C | 22.5 deg C |
| Phycocyanins (cyanobacteria), water, in situ, fluorometric method, excitation at 590 ±15 nm, emission at 685 ±20 nm, relative fluorescence units (RFU) | -0.02 RFU |
| Percent of Normal | 102% |
| Year Over Year Average | 69 cfs |
| 24hr Flow Prediction | cfs |
| Maximum Recorded | 23,400 cfs |
| Geolocation | 44.79, -122.58 |
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