FLOOD09598

• County: Huerfano
• Community: Huerfano County
• Stream Name: Arkansas River and Tributaries
• Basin: Arkansas
• Title: Huerfano County Regulations for Areas and Activities of State Interest
• Date: 6/1/1976
• Prepared For: Huerfano County
• Prepared By: Andrew Nigrini
• Floodplain - Doc Type: Miscellaneous

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(XII) Past occurrences of rockfall

(d) Applications for development in a mudflow hazard area
also shall include but not be limited to the following
information or data:

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(I) Drainage basin study including all stream
channels upstream from the site

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(II) Sediment yield study with data regarding sur-
ficial materials, vegetative cover, topography,
and erosion potential of areas upstream from
the site

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(III) Climatologic data including precipitation data
for short duration, intense rainstorms, and
snowmelt runoff characteristics

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(IV) Geologic map with topography overlayed showing
mud flow deposits

(V) Volume and mass of potential mudflows on the site

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(VI) Summary of the information noted above on a map
with a scale of one inch equals fifty feet or
larger, with accurate topographic details

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(VII) A report which presents the necessary explanatory
text, data tabulation, and other essentials for
further work or governmental review

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(VIII) Mitigation techniques that will be employed in-
cluding specific geologic evaluations and engin-
eering designs associated with the site and its
development

(IX) Estimated mitigation cost and documentation of
previous effectiveness of the technique

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(X) Past occurrences of mudflows

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(e) Applications for development in an unstable or poten-
tially unstable slope area also shall include but not
be limited to the following information or data:

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(I) Past occurrences of landslides, muuflows, rock-
falls, and surficial creep on the site and
adjacent areas

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(II) Rate of movement of the surficial materials

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