Around here
Around Caldwell High Line Canal
Temperature from a 1980 federal survey. The record says nothing about access, ownership or current conditions.
Data Source: Recreation.gov · Source: USGS GNIS · Thermal springs: NOAA NCEI (1980) · Public land: USGS PAD-US · Forest roads: USDA Forest Service MVUM · BLM routes and areas: Bureau of Land Management (simplified for web display)
About this river
Caldwell High Line Canal is a 2.3 mile canal. Streamflow is measured at the USGS gauge East Hartley above Backwater near Caldwell, ID (site 132109867). The National Hydrography Dataset places it at stream order 5. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
2017 to 2026
Caldwell High Line Canal typically runs highest in August, at a median 58 cfs, and lowest in March, at 13 cfs. The highest flow on record for any single day is 97 cfs, in 2017.
Show the numbers
| Month | Typical (cfs) | Usual range (cfs) |
|---|---|---|
| January | 14 | 13 to 15 |
| February | 14 | 13 to 16 |
| March | 13 | 12 to 15 |
| April | 34 | 24 to 41 |
| May | 57 | 49 to 62 |
| June | 54 | 48 to 61 |
| July | 51 | 43 to 57 |
| August | 58 | 51 to 63 |
| September | 57 | 52 to 62 |
| October | 33 | 28 to 39 |
| November | 16 | 15 to 17 |
| December | 14 | 13 to 16 |
Typical is the median of each month’s daily median values, and the usual range runs from the median 25th to the median 75th percentile, across about 10 years of record. Statistics published by the US Geological Survey for East Hartley above Backwater near Caldwell, ID (site 132109867). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Made to print
Put Caldwell High Line Canal on your wall
This river section as an art print, drawn over the real terrain with its miles, plus the trails, roads and peaks around it. Pick the colors and the size, and see the finished print before you buy. From $39, shipping included.
Embed this gauge on your site
Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show Caldwell High Line Canal's live streamflow, water level and 7-day trend. It reads the USGS gauge directly, updates itself, and links back here.
See every free widget you can put on your site, including live conditions and a 7 day forecast.
