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1.
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Adopt-A-Highway Status (Adopted): Iowa iowa

2020. Iowa Department of Transportation. This layer displays all of the currently adopted Iowa Highway segments as related to the Adopt-A-Highway program. These layers were developed for u...

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Adopt-A-Highway Status: Adopted: State of Iowa iowa

2020. Iowa Department of Transportation. This layer displays all of the currently adopted Iowa Highway segments as related to the Adopt-A-Highway program. These layers were developed for u...

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Adopt-A-Highway Status (Never Adoptable): Iowa iowa

2020. Iowa Department of Transportation. This layer represents the sections of highway which are never available for adoption within the Adopt-A-Highway program. This symbolization was dev...

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Adopt-A-Highway Status (Never Adoptable): Iowa iowa

2020. Iowa Department of Transportation. This layer represents the sections of highway which are never available for adoption within the Adopt-A-Highway program. This symbolization was dev...

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Airport Approach Surface Precision: Iowa iowa

2020. Iowa Department of Transportation. The approach surface is longitudinally centered on the extended runway centerline and extends outward and upward from each end of the primary surfa...

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Airport Approach Surfaces: Iowa iowa

2020. Iowa Department of Transportation. The approach surface is longitudinally centered on the extended runway centerline and extends outward and upward from each end of the primary surfa...

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Airport Conical Surface: Iowa iowa

2020. Iowa Department of Transportation. The Conical surface extends outwards and upwards from the boundary of the horizontal surface at a slope of 20:1 for a horizontal distance of 4,000'.

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Airport Horizontal Surface: Iowa iowa

2020. Iowa Department of Transportation. The Horizontal surface is a plane 150' above the established airport elevation. The perimeter of which is constructed by swinging arcs of specified...

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Airport Primary Surface: Iowa iowa

2020. Iowa Department of Transportation. The Primary surface extends 200 feet beyond each end of the runway, but when the runway has no specially prepared hard surface, the surface ends at...

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Airport Runway: Iowa iowa

2020. Iowa Department of Transportation. Airport runway locations and information in Iowa including contact information, location details and more.

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Airport Transitional Surface: Iowa iowa

2020. Iowa Department of Transportation. The transitional surface extends outward and upward at right angles to the primary and approach surfaces at a slope of 7:1.

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Airport Transitional Surface Precision: Iowa iowa

2020. Iowa Department of Transportation. The transitional surface extends outward and upward at right angles to the primary and approach surfaces at a slope of 7:1.

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Airports: Iowa iowa

2020. Iowa Department of Transportation. Airport locations and information in Iowa including contact information, location details and more.

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All Routes: Iowa iowa

2020. Iowa Department of Transportation. Information about all routes in the State of Iowa including Federal, State, County, Municipal, Institutional and Ramp systems. Data is maintained i...

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All Routes: State of Iowa iowa

2020. Iowa Department of Transportation. Information about all routes in the State of Iowa including Federal, State, County, Municipal, Institutional and Ramp systems. Data is maintained i...

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Automatic Traffic Recorders: Iowa iowa

2020. Iowa Department of Transportation. Automatic Traffic Recorder (ATR) Continuous Count location sites in the state of Iowa. This data is updated on the 10th of each month.

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Crash Data (General Vehicle-Specific): Iowa iowa

2020. Iowa Department of Transportation. General vehicle-specific data from the prior 10 years. Data compiled in this format for the Traffic Safety Data and Analysis website (www.iowadot.g...

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Crash Data (Person General): Iowa iowa

2020. Iowa Department of Transportation. General vehicle-specific data from the prior 10 years. Data compiled in this format for the Traffic Safety Data and Analysis website (www.iowadot.g...

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Crash Data (Person Specific): Iowa iowa

2020. Iowa Department of Transportation. Person specific data from the prior 10 years. Data compiled in this format for the Traffic Safety Data and Analysis website (www.iowadot.gov/tsda)....