
Poorman Creek, a 3rd order tributary,
flows 14 miles to its confluence with the Blackfoot River at river mile 108. Poorman Creek
headwaters in the Helena National Forest flowing through small sub-divisions and one large
ranch at the confluence with the Big Blackfoot River. Grentier Spring Creek, a tributary
that recieved several restoration projects in the early 1990's, is a tributary to lower
Poorman Creek.
Poorman Creek has several documented
land management problems including, placer mining in the headwaters, undersized culverts
throughout the watershed, mulitiple sub-divisions, dewatering from irrigation and improper
grazing management. Despite some of the land management problems, Poorman Creek still
supports fluvial runs of westslope cutthroat trout and bull trout.
In order to prioritize restoration
resources, we developed a fisheries-based restoration priority scorecard, based on
biological, social and financial considerations, for 83 impaired tributaries of the
Blackfoot River. Poorman Creek ranked 3 of 83 streams surveyed.
The Helena National Forest and Lewis
and Clark County have addressed two of the undersized culverts, replacing them with larger
squash culverts with baffles. They are presently assessing all of the other culverts to
prioritize replacement. The Blackfoot Restoration Partners have designed and negotiated
several restoration projects on the Grentier Ranch at the mouth of Poorman Creek. Projects
include instream restoration, riparian management through the USDA Riparian Conservation
Reserve Buffer Program; consolidation of irrigation ditches, screening the consolidated
ditch, conversion from flood to sprinkler irrigation and water leasing to protect instream
flows. |