FEMA flood zone rules in West Des Moines, IA — also called floodplain regulations or special flood hazard area (SFHA) rules — determine flood insurance requirements and elevation standards for new construction.
Iowa Code 455B and Iowa Admin Code 567 chapters 70 through 72 require state DNR approval for floodplain or floodway development on streams above defined drainage thresholds. The framework applies statewide unless a community has a delegated local floodplain ordinance.
Under Iowa Code 455B.275 and DNR rules at 567 chapters 70 through 72, obstruction, deposit, excavation, or flood control work on a regulated floodplain or floodway requires a state floodplain development permit unless covered by a delegated community ordinance or specific exemption. Rural projects need approval if the stream drains 10 or more square miles; urban projects trigger approval at 2 or more square miles. The DNR also coordinates Iowa's National Flood Insurance Program participation and works with FEMA on disaster response. Local floodplain rules adopted under NFIP must meet or exceed the state minimums established in 567-72.
Building in a regulated floodplain without DNR approval can result in stop-work orders, civil penalties under Iowa Code 455B.275 and 455B.191, removal of unauthorized structures, and loss of NFIP eligibility.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
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Polk County allows backyard composting but regulates it through the Health Nuisance Regulation: a compost pile that harbors vermin, produces offensive odors,...
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Polk County has no ordinance for or against artificial turf on residential lots. Installation on unincorporated land is generally unrestricted; cities and HO...
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Polk County has no ordinance banning native or prairie landscaping, and the county promotes native roadside vegetation. The one legal limit: your planting ca...
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Iowa has no state ban on collecting rainwater, and Polk County sets no rain-barrel ordinance. Residents may capture roof runoff in barrels or cisterns; only ...
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Polk County sets no lawn-watering schedule. Central Iowa's water is managed by Central Iowa Water Works / Des Moines Water Works, which can impose voluntary ...
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Iowa Code 317.10 requires every landowner to destroy all noxious weeds on their land as directed by the county board of supervisors. Polk County's Weed Commi...
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