Swanson Lake and Trenton water level
Reservoir, Nebraska, United States
Right now
Normal for mid-October
Surface elevation
- Water stored
- 41,405 acre‑ft
History
202120222023202420252026
What this means
Nothing unusual at Swanson Lake and Trenton right now: the lake level of 2,734.05 ft is in the normal range for mid-October.
The median for mid-October is 2,735.89 ft, based on 36 years of readings, so the lake level is 1.84 ft below typical. On the same day last year the reading was 2,735.39 ft, a difference of −1.34 ft.
The level is falling, down 0.12 ft over the past week. Over the past 30 days it has moved between 2,734.05 ft and 2,734.28 ft.
Many reservoirs are drawn down through summer and fall; most of the refill comes later, with winter rain or spring snowmelt.
Compared with 36 years of daily readings for this time of year. How to read levels
Key numbers
- Median for this date
- 2,735.89 ft1.84 ft below the median for this date
- Normal for this date
- 2,726.89 ft – 2,743.38 ft8 years in 10 fall in this range (36 years of records)
- Same day last year
- 2,735.39 ft−1.34 ft
- Lowest and highest in 30 days
- 2,734.05 ft – 2,734.28 ft
- Lowest and highest in 12 months
- 2,734.07 ft – 2,739.64 ft
Swimming and boating at Swanson Lake and Trenton
At a normal level, ramps and marinas generally run as usual, and fishing tends to follow the season more than the water level.
If you swim, pick a spot with an easy way out, and remember that drop-offs move as the level changes.
Weather at the gauge
No rain in the last 3 days.
Forecast: Open-Meteo
Map
Nearby gauges
| Gauge | Level | Compared with normal | 24 hours | Distance |
|---|---|---|---|---|
| Republican River at StrattonRiver gauge, Republican River | 4.19 ft | Low | ±0 | 9 mi |
| Frenchman Creek at CulbertsonRiver gauge, Frenchman Creek | 2.73 ft | Normal | +0.01 ft | 11 mi |
| Frenchman Creek at PalisadeRiver gauge, Frenchman Creek | 2.38 ft | Normal | +0.02 ft | 13 mi |
| Driftwood Creek near McCookRiver gauge, Driftwood Creek | 2.56 ft | Normal | +0.05 ft | 20 mi |
| Republican River at McCookRiver gauge, Republican River | 2.71 ft | Very low | +0.01 ft | 23 mi |
| Hugh Butler Lake and Red WillowReservoir | 2,564.61 ft | Normal | 24 mi | |
| Republican River at BenkelmanRiver gauge, Republican River | 2.81 ft | Normal | +0.05 ft | 27 mi |
| South Fork Republican River near BenkelmanRiver gauge, South Fork Republican River | −0.55 ft | Below flood stage | −0.04 ft | 28 mi |
Questions and answers
Is Swanson Lake and Trenton higher than last year?
No, it is 1.34 ft lower than on the same day last year, when the reading was 2,735.39 ft.
What is a normal level for Swanson Lake and Trenton in mid-October?
The median for mid-October is 2,735.89 ft. In 8 years out of 10 the reading falls between 2,726.89 ft and 2,743.38 ft, based on 36 years of records.
Is Swanson Lake and Trenton really 2,734.05 ft deep?
No. 2,734.05 ft is the height of the water surface above sea level (or the agency's vertical datum), not the depth of the water.
What is the water level of Swanson Lake and Trenton today?
On Oct 17, 2026, the surface elevation was 2,734.05 ft. Down 0.12 ft over the last 7 days.
Is Swanson Lake and Trenton rising or falling?
Down 0.12 ft over the last 7 days.
Is the level of Swanson Lake and Trenton normal?
Normal for mid-October. Compared with 36 years of daily readings for this time of year.
How often is this data updated?
The U.S. Bureau of Reclamation publishes a new reading once a day. This page refreshes within minutes of each update.
For specialists
Station codes, datum, parameters, data quality and downloads
- Operator
- U.S. Bureau of Reclamation
- Station code
usbr:3667(Agency page)- Coordinates
40.17000, -101.06000(WGS84)- Update interval
- once a day
- Licence
- Public domain. Data: U.S. Bureau of Reclamation (RISE), provisional data subject to revision
Published series
| Parameter | Last value | Time (UTC) | Quality |
|---|---|---|---|
| Surface elevation | 2,734.05 ft | 2026-10-17 06:00 | Provisional |
| Water stored | 41,405 acre‑ft | 2026-10-16 06:00 | Provisional |
Download
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How to cite
U.S. Bureau of Reclamation: Swanson Lake and Trenton (usbr:3667). Accessed October 18, 2026 via Nivelmap, https://nivelmap.com/en/united-states/nebraska/swanson-lake-and-trenton
How we check values
Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.
Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer