Reservoirs drain, sandbars appear as Bitterroot River level drops to 30-year low

2013-08-13T21:45:00Z 2013-11-17T18:16:52Z Reservoirs drain, sandbars appear as Bitterroot River level drops to 30-year low missoulian.com

Bitterroot River floaters better brace for some long drags as a tough water year heads toward the end of irrigation season.

The usually multi-channeled river shows lots of sandbars and few braids as it flows past Hamilton, Stevensville and Florence. Lake Como’s reservoir looks like a dirty bathtub. The river gauge at Buckhouse Bridge south of Missoula reports 30-year low levels.

“And we’re 15 or 16 days into those lowest-recorded flows,” said Jed Whiteley of the Clark Fork Coalition during a flight over the Bitterroot Valley with EcoFlight pilot Bruce Gordon Tuesday. “Without Painted Rocks Reservoir, the Bitterroot would be pretty much dry.”

Tributary streams like Lost Horse Creek and Burnt Fork Creek have almost nothing left for the river after the valley’s irrigators take care of their crops.

“On Monday, the total flow was 230 cfs (cubic feet per second) at Bell Crossing,” said J.R. Iman, Ravalli County commissioner and president of the Painted Rocks Water Users Association. “In a normal year, the goal at Bell Crossing is 400 cfs. This year it will get as low as 175. There’s not enough water in the drainage to go around.”

Iman said many Bitterroot farmers switched to cereal crops that require less irrigation this spring in anticipation of a lean year. But those who raise corn, sorghum and hay will need another watering period soon.

“Over the next 2 1/2 weeks, irrigation water will be turned up two to three times so they can finish the corn and alfalfa crops,” Iman said. “Usually, 95 percent of our water is taken out by Sept. 15.”

A combination of getting less than 70 percent of the average winter snowpack, a warm spring with a high-water peak of May 11, and about 20 days in June and July with temperatures over 90 degrees produced a trifecta of bad luck for the Bitterroot River drainage in 2013.

The resulting bony river prompted the Montana Department of Fish, Wildlife and Parks to impose “hoot-owl” restrictions in the main stem of the river on July 23. That prohibits fishing between 2 p.m. and midnight when water temperatures are highest.

The upper Clark Fork River between Perkins Lane and Flint Creek, and from its confluence with the Bitterroot west of Missoula to the Flathead River, is also under hoot-owl restrictions.

FWP Region 2 fisheries manager Pat Saffel said the recent stretch of cool weather and August’s longer nights have actually helped fish in the Bitterroot. Irrigators have also not been taking their full allotments of water from the river, which has helped in-stream flows.

“We haven’t been looking at more restrictions on the Bitterroot,” Saffel said Tuesday. “When flows get really low, we can have fish congregated in pools, and then they become more susceptible to angling. But we haven’t seen that in the Bitterroot at this point.”

What biologists have been seeing is a higher-than-usual mortality of cutthroat trout, especially in the waters above Hamilton.

“The hoot-owl restrictions there were mainly for helping cutthroat, which are easy to catch and more sensitive to temperatures than rainbow or brown trout,” Saffel said.

The Blackfoot River is still unrestricted for fishing, but it’s reaching a low-flow level that could affect ranchers and farmers there.

“It got down to 650 cfs late last week, although now it’s closer to 670,” Saffel said. “We have an in-stream flow right that triggers at 700 cfs, where we can ask junior users to conserve water under drought plans. We’re going to send out notification we’re below that level, and ask for drought plans to be implemented so we can keep flows at a level that’s healthy for the fishery.”

Reporter Rob Chaney can be reached at 523-5382 or at rchaney@missoulian.com.

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(5) Comments

  1. CoolRanch
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    CoolRanch - August 14, 2013 12:50 pm
    Notice the fields next to the river... they don't look very thirsty.
    I guess growing water intensive weeds for cattle counts as "farming".
    Western water law is so broken and archaic it is insulting... except to the landed-gentry growers of weeds I imagine.

    This is just the beginning of the coming water shortages and conflicts.
    It will get worse because there is less snow every year.
    As long as the Bitterroot is run by and for 19th century inheritance using 19th century water-rights this will be the norm.
  2. Publius10
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    Publius10 - August 14, 2013 9:10 am
    Thank goodness the Ravalli County Commissioners approved the new 1600 person town at Legacy Ranch. All that extra water use will surely help out the river flows and all the farmers who work hard to make a living in the Valley. Keep up the good work Commissioners, hopefully these kinds of decisions are at least lining your pockets.
  3. Roger
    Report Abuse
    Roger - August 14, 2013 8:04 am
    Too many people sucking water out of the river.
  4. brmoderate
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    brmoderate - August 14, 2013 7:54 am
    Yes, if they have the water rights. As the water gets less, the ones with lower water rights lose their water. So probably those with fourth or third water rights aren't getting water. Eventually no one will be able to irrigate. Water rights are real property, not some nebulous entity. Years ago, the river would be virtually dry from Victor north but the FWP went and purchased water rights from Painted Rocks from the farmers and ranchers out to allow releases throughout the summer.
  5. Still Here
    Report Abuse
    Still Here - August 14, 2013 6:34 am
    So let me get this straight, Record low water flows and the farmers still get their total allotment of water.
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