Lake Tapps Diversion At Dieringer, Wa Realtime Data
LAKE TAPPS DIVERSION AT DIERINGER, WA
Realtime Data • Report • Conditions
23
Discharge (cfs)
5.8
Gauge Height (ft)
Streamflow discharge was last observed at 23 cfs, and a gauge height of 5.76 feet.
With the
% decrease since yesterday,
the streamflow average over the past 10 days is 22 .
Weather today, Tomorrow,
The diversion is regulated by the Lake Tapps Reservoir, which is fed by several tributaries and controlled by a dam. Seasonal trends in flow reflect the changing precipitation patterns in the region, with higher flows occurring in the winter and spring months. Interestingly, the diversion and reservoir have a storied past, having been originally constructed in the early 1900s as a hydroelectric project before being repurposed for irrigation and recreation. Despite some controversy surrounding the diversion's effects on fish populations and other ecological concerns, it remains a critical component of the region's hydrology.
July 14, 2026
| Elevation | 57.0 ft |
| Last Updated | |
| Gage height, ft | 5.76 ft |
| Streamflow, ft³/s | 22.7 ft3/s |
| Specific conductance, water, unfiltered, microsiemens per centimeter at 25°C | 65.0 uS/cm @25C |
| Dissolved oxygen, water, unfiltered, mg/L | 10.1 mg/l |
| Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 ±2.5°, formazin nephelometric units (FNU) | 1.4 FNU |
| pH, water, unfiltered, field, standard units | 6.8 std units |
| Temperature, water, °C | 10.5 deg C |
| Percent of Normal | 155% |
| Year Over Year Average | 15 cfs |
| 24hr Flow Prediction | cfs |
| Maximum Recorded | 1,830 cfs |
| Geolocation | 47.24, -122.23 |
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