State of Iowa

Airport Precision Approach Surfaces

Airport precision approach surfaces define the geometric boundaries above Iowa's airports that must remain clear for safe aircraft operations. Each record typically includes the surface geometry, associated airport identifier, runway designation, and approach type.

Example records
NamebrandCityaddressThe GeomgeospatialObjectididentifierFaa CoderegistrationAirport Elevation (Ft Msl)quantityPart 77 SurfaceclassificationSurface Descriptionadditional dataInner Elevation (Ft Msl)quantityOuter Elevation (Ft Msl)quantitySurface Width (Ft)quantitySurface Ratioquantity
MUSCATINE MUNICIPALMuscatineMULTIPOLYGON (((-90.965947975859 41.423310907824, 18MUT547Inner Approach SurfaceSurface extends from end of primary surface; slope547747050:1
SIOUX GATEWAY/COL. BUD DAY FIELDSioux CityMULTIPOLYGON (((-96.39689516302 42.410542321824, -3SUX1098Inner Approach SurfaceSurface extends from end of primary surface; slope10981298050:1
DES MOINES INTERNATIONALDes MoinesMULTIPOLYGON (((-93.842226157858 41.459613701241, 23DSM958Inner Approach SurfaceSurface extends from end of primary surface; slope9581158050:1
Use cases

Real Estate Development Obstruction Screening

A commercial real estate lender underwriting a construction loan near a regional airport checks whether the proposed building height would penetrate a protected approach surface, which could trigger FAA objections and jeopardize the project's permits and collateral value.

Faa CodeThe GeomOuter Elevation (Ft Msl)Approach TypePart 77 Surface

Aviation Insurance Exposure Mapping

An aviation underwriter assessing liability exposure for a general aviation airport policy maps the precision approach surface geometry against surrounding land parcels to identify structures or terrain that could increase accident risk and affect premium pricing.

The GeomAirport Elevation (Ft Msl)Surface RatioApproach Surface Length (Ft)Area (Acre - State Plane)

Telecom Tower Siting Compliance Check

A wireless infrastructure company evaluating tower placement near an Iowa airport uses the approach surface boundaries and elevation limits to determine whether a proposed tower location requires FAA notification under Part 77 before filing for permits.

Faa CodeThe GeomInner Elevation (Ft Msl)Outer Elevation (Ft Msl)Approach Type
Related datasets
Airport Conical SurfacesState of IowaRunwaysDepartment of TransportationMaryland AirportsConnecticut Airports FAAState of ConnecticutAdopted RegulationsState of IowaNYC Airport LocationsCity of New YorkActive Rail LinesState of IowaNYC Airport BoundariesCity of New YorkIntermodal Freight Facilities Pipeline TerminalsFederal Geographic Data CommitteeIntermodal Passenger Connectivity DatabaseFederal Geographic Data CommitteeAmtrak Real Estate Assets in Opportunity ZonesTransmission Facilities Application Status and LocationMontgomery County of Marylandappraiser business entities licensed iowaCommercial Parking LotsMontgomery County of MarylandOffshore Wind Lease OutlinesDepartment of the InteriorMontgomery County Business ParksMontgomery County of MarylandMaryland Amtrak StationsMTA Bus ParkingState of MarylandClaims Against the State of IowaState of IowaRail Equipment AccidentsDepartment of Transportation