NORTH DAKOTA STATEWIDE EXECUTIVE SUMMARY

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S TUDY( PC I)IN DEXCO NDITIONPAVEM ENT20 18NORTH DAKOTASTATEWIDEEXECUTIVESUMMARY2018 PAVEMENTCONDITION INDEX (PCI)STUDYwww.aero.nd.gov

OverviewThe Federal Aviation Administration (FAA) developed the AirportPavement Management System (APMS) with the intent to provide aconsistent and systematic approach to identifying pavement that needsmaintenance or rehabilitation. The North Dakota Aeronautics Commission(NDAC) developed a customized APMS according to FAA requirements.An APMS evaluates the current condition of the pavement and predicts a future condition based on thePavement Condition Index (PCI). This allows the individual airports, the NDAC, and the FAA to monitor thecondition of the airport pavements and budget for required maintenance to avoid excessive deterioration.The timing of this maintenance or rehabilitation is vital to support the crucial role airport pavementconditions play in safeguarding airport users.The North Dakota APMS is provided in an electronic format to allow the data to be readily available to theairports, the FAA, and the NDAC. The APMS is updated every three years to accurately reflect pavementconditions across the state’s airports. PCI results are used to build 5- and 10-year capital improvement plans(CIPs) with each airport’s respective city, county, or airport authority.In 2018, Mead & Hunt along with Applied Pavement Technology and EVS conducted the update to the NorthDakota APMS. As part of this update, pavement history information collected over the past three years wasadded to the online database, pavement inspections were completed, and functionality improvements weremade to the website. The findings and recommendations of the APMS update are included in this report. Fullresults can be found on the NDAC website, WWW.AERO.ND.GOV.NORTH DAKOTA AERONAUTICS COMMISSION . WWW.AERO.ND.GOV1

Pavement InventoryIn 2018, 72 airports were assessed. Of these, 54 were part of the National Plan of Integrated Airport Systems (NPIAS) and 18 were non-NPIAS. Only NPIAS airportsqualify for federal funding, so the FAA provided funding for the pavement inspections and reports for the NPIAS airports, while the same work for the non-NPIASairports was funded solely by the North Dakota Aeronautics Commission. Of the 54 NPIAS airports assessed for the project, 53 were inspected (seven commercialservice and 46 general aviation). All 18 non-NPIAS general aviation airports assessed for the project were inspected. Williston, a NPIAS airport, was not inspectedas part of the 2018 study due to the relocation of the existing airport. However, Williston’s planned geometry of airfield pavements was included in the overalldata analysis and system assessment. A PCI of 100 was used to reflect the assumed condition of all of Williston’s newly constructed pavement. Projected costs forWilliston were excluded from the funding assessment needs. A PCI of 100 was also assumed for all newly constructed pavement or pavement programmed tobe reconstructed in the next year for airports statewide. Pavement inventory data includes area, age, surface type, and observed distresses. The map on page 5identifies all the airports in North Dakota that were included as part of the 2018 APMS update.These airports represent 56.9 million square feet of pavement – approximately 26.8 million square feet of runway pavement, 13.9 million square feet oftaxiway pavement, 14.2 million square feet of apron pavement, and 2 million square feet of T-hangar pavement. Comprised of both concrete and asphalt, thepavements are shown in the Area by Use and Area by Surface Type pie charts below. Pavement at the airports in the state have an average age of 15 years forcommercial service airports and 10 years for general aviation airports. Throughout the years, the airports have performed preventive maintenance andcarried out a series of rehabilitation/reconstruction projects to eliminate foreign object debris (FOD) as well as sustain and extend the pavement life. The chartsshown on the next page, Pavement Area by Use and Area-Weighted Average Age by Use, summarize the total square footage of pavements found in the state andthe average age of those pavements based on use, broken out for the overall state system, commercial service and general aviation 467,44914,233,537Area by UseArea by Surface TypeIN SQUARE FEETIN SQUARE FEETRunwayTaxiwayApronT-Hangar13,895,21822018 PAVEMENT CONDITION INDEX (PCI) STUDYAsphalt ConcreteAsphalt Over Asphalt ConcretePortland Cement ConcreteAsphalt Over Portland Cement Concrete14,312,942

Overall State tionCommercialServiceCommercial ServicePavement Areaby UseOVERALLOVERALLIN SQUARE FEETT-HANGART-HANGARBRANCHUSEUSEBRANCHOverall State SystemGeneral AviationCommercial 0,000520,000,00010Overall State SystemGeneral AviationCommercial ServiceArea-WeightedAverage Age by Use40,000,00050,000,0002025 60,000,000OVERALLIN YEARST-HANGARBRANCH USEOverall State SystemGeneral AviationCommercial Service30,000,000 15PAVEMENT AGEPAVEMENTAREA(Years)(Square Feet)TAXIWAYRUNWAYAPRON02468101214161820PAVEMENT AGE (Years)NORTH DAKOTA AERONAUTICS COMMISSION . WWW.AERO.ND.GOV3

Pavement EvaluationPavement Evaluation ProcedureA PCI survey was conducted at each of the 71 airports inspected as part of the project according to the procedures outlined in American Society for Testing andMaterials (ASTM) Standard D5340, Standard Test Method for Airport Pavement Condition Index Surveys and the FAA’s Advisory Circular 150/5380-6C, Guidelines andProcedures for Maintenance of Airport Pavements. A PCI survey consists of dividing pavement into a series of sections, selecting random sections for sampling, andinspecting a given portion of each sample section to determine overall pavement deterioration. Pavement deterioration is based on the quantification of thedifferent types, the severity and the number of distresses present in the sample section. This information is then used to formulate a composite index numericalvalue that represents the overall pavement condition. This value will range from 0 (failed) to 100 (excellent).As part of the APMS, the PCI will be used to determine current pavement conditions, predict future conditions, develop a maintenance program and identifythe most cost-effective time frame to perform major rehabilitation. The PCI will also aid in tracking and determining causes of deterioration on a pavement.The correlation between a PCI number and a recommended repair is shown in the illustration below. Preventive maintenance consists of patching, cracksealing and joint sealing. Pavement rehabilitation includes surface treatments and thin overlays. Pavement reconstruction refers to full-depth reconstructionand thick overlays. Surface treatments are used to address weathering and low-severity raveling. Nominal resurfacing is used to address medium- andhigh-severity raveling.Pavement ConditionPavementIndexCondition(PCI) LegendIndex (PCI) rRehabilitation41-55PCIPCITYPICAL REPAIRACTIVITY86-10086-100 PREVENTIVE71-85 PavementSurfaceRESURFACINGLegend90 PCIRepair AlternativeLegendPavements with PCIs above 70 benefit fromcost-effective preventive maintenance, such ascrack sealingand surfacetreatments.BRANCHIDENTIFIERBRANCH IDENTIFIERSECTION IDENTIFIER SECTION IDENTIFIER60 PCIPavements with a PCI in the range of 41to 70 will typicallyrequire more expensivePCI VALUEPCI VALUErehabilitation, such as an overlay.RW1533-FG-10(67) RUCTION2018 PAVEMENT CONDITION INDEX (PCI) STUDYRECONSTRUCTION15 PCIPavement allowed to deteriorate to a PCI of 40or below couldrequire costlyreconstructionto BREAK LINESECTIONBREAKLINE SECTIONrestore it to operational condition.

LOGANMcINTOSHFort YatesFargoWest SValley RIGGSNorthwoodCooperstownBURLEIGHMottBowmanGrand ForksNELSONCarringtonNORTH DAKOTAGlen UllinHETTINGERFOSTERWELLSHazenSTARKSLOPEGRAND FORKSLarimoreNew RockfordMERCERDickinsonMintoDevils LakeEDDYHarveyGarrisonDUNNBeachPark RiverLakotaSHERIDANBeulahGraftonMaddockWatford CityBILLINGSWALSHBENSONKilldeerDraytonSt. ThomasRAMSEYMinotMcLEANCavalierCandoNew l Aviation Non-NPIAS (State Funding)CANADACrosbyWILLIAMSGeneral Aviation NPIAS (Federal Funding)CommercialService (Federal Funding)MINNESOTANorth Dakota Airports included in the2018 Airport Pavement Management System NDSOUTH DAKOTANORTH DAKOTA AERONAUTICS COMMISSION . WWW.AERO.ND.GOV5

Typical Distress TypesThe FAA Advisory Circular provides a list of specific distresses to be analyzed and recorded when inspecting pavement. Airports in North Dakotaare a combination of asphalt concrete (AC) pavement and Portland cement concrete (PCC) pavement with there being slightly more AC pavementthan PCC pavement. These two pavement types have unique pavement distresses and repairs. The following is a brief description of commonlyobserved pavement distresses at North Dakota airports.ALLIGATOR CRACKING. Alligator (fatigue) cracking is a load-related distress caused by excessive tensile strainsat the bottom of the AC layer or stabilized asphalt base layer from repeated aircraft loadings. Alligator crackingtypically shows up on the surface as a series of parallel cracks, which eventually interconnect to form a patternresembling the skin of an alligator.JOINT SEAL DAMAGE. Joint sealant damage is any condition that enables soil or rocks to accumulate in the joints orallows significant infiltration of water. Accumulation of incompressible materials prevents the slabs from expanding andmay result in buckling, shattering, or spalling. A pliable joint filler bonded to the edges of the slabs protects the jointsfrom accumulation of materials and prevents water from seeping down and softening the foundation supporting theslab. Typical types of joint seal damage are: (1) stripping of joint sealant, (2) extrusion of joint sealant, (3) weed growth,(4) hardening of the filler (oxidation), (5) loss of bond to the slab edges, and (6) absence of sealant in the joint.LONGITUDINAL AND TRANSVERSE CRACKING. The predominant distress type found on asphalt pavements at NorthDakota airports is longitudinal and transverse (L&T) cracking. This distress can be caused by any of the following:(1) separation of pavement at paving lane joints, (2) shrinkage of AC pavement due to temperature differentialsin older or brittle pavements, or (3) reflection cracking from underlying faults in supportive layers of pavement orsubgrade. Cracking is also a common distress type for PCC pavement. This distress is caused by a combination of loadrepetition, curling stresses, and shrinkage stresses.62018 PAVEMENT CONDITION INDEX (PCI) STUDY

PAVEMENT DISTRESSRAVELING. As pavements age and are exposed to oxidation and other environmental stresses, they mayexperience a loss in the material making up the pavement matrix. Raveling is the dislodging and loss of coarseaggregate in the surface of a pavement. The pavement may be showing signs of aging and hardening and mayresult in the production of FOD.SPALLING. Spalling, in PCC pavement, is the breakdown of the slab edges near the slab joint. Spalling is identifiedas occurring in the corner or along the joint of a PCC slab. Spalling is typically caused by the introduction ofincompressible material in the joint, weaker pavement at the joint caused by overworking of the pavement duringconstruction, traffic loading or a combination of these.WEATHERING. As pavements age and are exposed to oxidation and other environmental stresses, they may experiencea loss in the material making up the pavement matrix. Weathering is the loss of asphalt binder and fine aggregate inthe surface of the pavement. The loss of fine matrix material in the surface may eventually lead to the exposure anddislodging of coarse aggregate, leading to raveling and FOD.NORTH DAKOTA AERONAUTICS COMMISSION . WWW.AERO.ND.GOV7

Pavement Classification Number (PCN)A PCN is a value that indicates the strength of a pavement as it relates to aircraftclassification numbers, which are assigned to each type of aircraft. Aircraft trafficinformation as well as subgrade and pavement strengths are critical inputs indetermining this value. Runway pavements at the commercial service airportswere analyzed in 2012 to provide a PCN value as detailed in FAA Advisory Circular150/5335-5B (or 150/5335-5C for any PCNs calculated in 2018), Standardized Methodsof Reporting Airport Pavement Strength – PCN. PCN values denoted as (2018) in the tablereflect updated PCN values, provided by the airport, due to completion of major runwayconstruction projects since 2012. The PCN is expressed as a five-part code. The first partof the PCN is a numerical value indicating the load-carrying capacity of the pavement.This numerical value is followed by four codes representing the following categories: PAVEMENT TYPER RigidF Flexible SUBGRADE STRENGTHA High (k-value 442 psi/in or CBR 13)B Medium (221 psi/in k-value 442 psi/in or 8 CBR 13)C Low (92 psi/in k-value 221 psi/in or 4 CBR 8)D Ultra Low (k-value 92 psi/in or CBR 4) MAXIMUM ALLOWABLE TIRE PRESSUREW High (no pressure limit)X Medium (146 to 218 psi)Y Low (74 to 145 psi)Z Ultra Low (pressure limited to 73 psi) PAVEMENT EVALUATION METHODT Technical EvaluationU Using Aircraft Evaluation82018 PAVEMENT CONDITION INDEX (PCI) STUDYThe latest PCN results for each commercial service airportare listed in the table below. A detailed PCN report for eachairport can be found on the NDAC website, WWW.AERO.ND.GOV.PCN ResultsAIRPORTBRANCH IDBismarck MunicipalRunway 13-31 (2018)100 R/B/X/TRunway 3-2126 F/A/W/TRunway 13-3127 F/D/W/TDevils Lake RegionalPCNRunway 3-2126 F/D/W/TDickinson TheodoreRoosevelt RegionalRunway 14-3220 F/D/W/TRunway 7-256 F/D/W/TFargo - HectorInternationalRunway 18-3695 R/C/W/TRunway 9-2725 R/C/W/TRunway 13-3117 R/D/W/TGrand ForksInternationalJamestown RegionalMinot InternationalWilliston BasinInternationalRunway 17L-35R9 R/C/W/TRunway 17R-35L35 R/C/W/TRunway 9L-27R24 R/B/W/TRunway 9R-27L10 R/C/W/TRunway 13-3179 F/C/W/TRunway 4-2225 F/D/W/TRunway 13-3143 R/C/W/TRunway 8-2634 F/D/W/TRunway 14-32 (2018)72*Runway 4-22TBD* Williston’s PCN is a projected value and will be finalized uponconstruction completion.

Analysis of ResultsCritical PCI Values 60 for general aviation taxiways and aprons 65 for commercial service taxiways and aprons 70 for general aviation runwaysPavement Condition Index (PCI)For each year of the analysis, the future condition of each of the pavements was estimated. The next step was to determine whether preventive maintenanceor major rehabilitation/reconstruction was the appropriate and most cost-effective method of maintaining pavement life. If a pavement was projected tobe above the critical PCI values listed below, the pavementPreservation/Resurfacingwas recommended for preventive maintenance. Majorrehabilitation/reconstruction was recommended for any PCI100Spending 1 on maintenance and/orvalue below the PCI critical thresholds. Surface treatmentspreservation periodically while the85pavement is in good condition.were identified for viable candidates that exhibitedPreventive Maintenanceweathering and/or raveling. These were identified separate.delays spending70 7- 16 on rehabilitationfrom the critical value analysis.55or reconstruction whenthe pavement is in worsecondition.Rehabilitation40Reconstruction 75 for commercial service runways0051015202530Pavement Age (In Years)Interested in a Particular Airport’s Pavement Condition & History?For information on pavement distresses for a specific airport, visit the Interactive Data Exchange Application(IDEA) website by going to www.aero.nd.gov and navigating to “Studies” then “Pavement Condition Index”then “Click Here.” Once there, you can view a list of the distresses that were identified as well as a maintenanceand rehabilitation plan for each airport. The IDEA site also contains photos of each airport along with aninteractive version of the airport’s PCI map.NORTH DAKOTA AERONAUTICS COMMISSION . WWW.AERO.ND.GOV9

Overall PavementConditionBY OverallPCI INDEXState SystemOverallSystemGeneralStateAviationGeneral AviationCommercial ServiceCommercial Service797780OVERALLT-HANGARBRANCH USEEach airport was inspected and anoverall area-weighted pavementcondition is assigned to each. Theinformation collected at each airportis used to provide greater detail on theuses of pavements and the correlatingPCI value associated with each use.The overall area-weighted PCI of all theairports included in this study is 79. TheArea-Weighted Average PCI Value by Usechart shows the 2018 condition of thepavement broken out by use and airportclassification.Area-Weighted Average PCI Value by 82857375708090AVERAGE WEIGHTED PAVEMENT CONDITION INDEX (PCI)Total Statewide Pavement Area by PCI Range (All Airports)25,000,00041%20,000,000Pavement Area (Sq. Ft.)The Total Statewide Pavement Area byPCI Range (All Airports) chart providesa summary of how many square feetof pavement in the state fall into eachindividual PCI range. The Overall AreaWeighted PCI table on the next pageprovides the area-weighted PCI for eachindividual airport, which is comprised ofall pavements on the 041-55056-70PCI Range102018 PAVEMENT CONDITION INDEX (PCI) STUDY71-8586-100100

Overall Area-Weighted PCIAIRPORT NAMEAREAWEIGHTEDPCIAIRPORT NAMEAREAWEIGHTEDPCIAIRPORT NAMEAREAWEIGHTEDPCIAshley Municipal93Harvey Municipal72Oakes Municipal83Beach81Hazen - Mercer County Regional61Page Regional33Beulah Municipal71Hettinger Municipal82Park River - W C Skjerven Field77Bismarck Municipal82Hillsboro Regional84Parshall-Hankins76Bottineau Municipal74Jamestown Regional64Pembina Municipal - Thomas Nord Field75Bowman Regional100Kenmare Municipal89Rolette81Cando Municipal68Killdeer - Dunn County90Rolla Municipal83Carrington Municipal62Kindred - Robert Odegaard Field70Rugby Municipal72Casselton Robert Miller Regional64Lakota Municipal65St. Thomas Municipal60Cavalier Municipal79LaMoure Rott Municipal74Stanley Municipal81Cooperstown Municipal82Langdon - Robertson Field88Tioga Municipal78Crosby Municipal72Larimore Municipal65Valley City - Barnes County Municipal83Devils Lake Regional75Leeds Municipal41Wahpeton - Harry Stern83Dickinson Theodore Roosevelt Regional69Linton Municipal78Walhalla Municipal80Drayton Municipal82Lisbon Municipal79Washburn Municipal95Dunseith - International Peace Garden81Maddock Municipal96Watford City Municipal63Edgeley Municipal70Mandan Municipal82West Fargo Municipal7371Ellendale Municipal62Mayville Municipal78Westhope MunicipalEnderlin - Sky Haven75Minot International76Williston Basin International100Fargo - Hector International83Minto Municipal79Wishek Municipal73Fort Yates - Standing Rock66Mohall Municipal83Garrison Municipal89Mott Municipal65Glen Ullin Regional64Napoleon Municipal93Grafton Hutson Field68New Rockford - Tomlinson Field64Grand Forks International80New Town Municipal84Gwinner-Roger Melroe Field94Northwood Municipal - Vince Field92NORTH DAKOTA AERONAUTICS COMMISSION . WWW.AERO.ND.GOV11

Historic Pavement ConditionThe APMS is updated every three years and it is important to show how the system as a whole is performing from updateto update. The Historical PCI and Projected Area-Weighted Average PCI by Funding Scenario chart below provides a summaryof the 2012 and 2015 historic PCI values; current 2018 PCI values; projected PCI values in 2023 if unlimited funding wereavailable; projected PCI values in 2023 if only the anticipated state budget funding were available; and the projected PCIvalues in 2023 if no improvements were completed on the existing system.Historical PCI and ProjectedArea-Weighted Average PCI byFunding Scenario201220152018Unlimited Funding 2023Anticipated Funding 2023No Improvements 0707273867676726666646050403020100ENTIRE SYSTEM122018 PAVEMENT CONDITION INDEX (PCI) STUDYRUNWAYSTAXIWAYSAPRONS75T-HANGARS

Pavement Condition Distribution5%The pie chart to the right summarizes the overallstate data for the airports included in the 2018 APMS.Approximately 48 percent have PCIs indicating they willbenefit from preventive maintenance actions, such ascrack sealing, joint sealing, and patching. Roughly 21percent would benefit from applying a surface treatment.Approximately 26 percent of the pavement infrastructureneeds more extensive rehabilitation, while 5 percent needsreconstruction to restore the pavement. The pie chartsbelow break out this same information by general aviationand commercial service airports.OverallState26%Preventive MaintenanceSurface TreatmentsMajor RehabilitationMajor ntive MaintenanceSurface TreatmentsMajor RehabilitationMajor ReconstructionCommercialService27%Preventive MaintenanceSurface TreatmentsMajor RehabilitationMajor Reconstruction59%9%38%NORTH DAKOTA AERONAUTICS COMMISSION . WWW.AERO.ND.GOV13

Pavement Funding AssessmentFunding for aviation projects within the state is crucial to maintain asteady pavement condition and safeguard aviation users. If no funding isprovided for pavement maintenance and repair, North Dakota’s pavementsystem will experience a slow and steady decline in condition. This declinewould create a need for more major rehabilitation or reconstructionprojects, which in turn significantly increases future cost.Using the information collected during the pavement inspection, arehabilitation program for 2019 through 2023 was developed for everyairport in the study. A five-year program was prepared with the goalof maintaining the pavement above the established critical PCI valueslisted earlier in this report. The program generates a major rehabilitationrecommendation for pavement in the year they drop below theircritical PCI.If all projects identified in the PCI study were funded, an approximatetotal of 165 million would be needed during the next five years – 101.2 million for commercial service airports and 63.4 million forgeneral aviation airports. The unlimited budget funding for individualairport needs through 2023 are summarized in the table shown to theright, Five-Year Funding Plan. This analysis is for 2019 through 2023 withan inflation factor of 4 percent when calculating future cost of work. Theunit costs used to estimate overall project costs are based on averages ofrecent projects completed throughout the state. These costs are averagesand are not intended to be used for specific project planning purposes.Funding needs identified in an unlimited budget scenario are to maintainor rehabilitate existing infrastructure and do not include any additionalneeds or improvements made.Five-Year Funding Plan5-YEAR TOTALFUNDING NEEDSCLASSIFICATIONAIRPORT NAMECommercial ServiceBismarck Municipal 14,364,759Devils Lake Regional 6,042,279Dickinson Theodore Roosevelt Regional 10,560,594Fargo - Hector International 14,464,791Grand Forks International 21,115,052Jamestown Regional 14,638,223Minot International 19,989,786Five-Year Commercial Service Funding TotalGeneral Aviation(NPIAS) 101,175,484Ashley Municipal 130,144Beach 666,103Bottineau Municipal 304,660Bowman Regional* 0Cando Municipal 1,352,832Carrington Municipal 3,056,230Casselton Robert Miller Regional 6,016,688Cavalier MunicipalCooperstown MunicipalCrosby Municipal 932,741 3,586 2,085,373Dunseith - International Peace Garden 159,808Edgeley Municipal 252,403Ellendale Municipal 288,032Fort Yates - Standing Rock 1,775,783Garrison Municipal 334,318Glen Ullin Regional 1,777,133Grafton - Hutson Field 2,397,739Gwinner - Roger Melroe Field 201,916Harvey Municipal 190,742* No or minimal five-year funding needed because airport was recently constructed or reconstructed.142018 PAVEMENT CONDITION INDEX (PCI) STUDY

CLASSIFICATIONAIRPORT NAMEGeneral Aviation(NPIAS)Hazen - Mercer County RegionalHettinger MunicipalHillsboro RegionalKenmare Municipal5-YEAR TOTALFUNDING NEEDS 3,858,366 799,074 1,142,475 309,9035-YEAR TOTALFUNDING NEEDSCLASSIFICATIONAIRPORT NAMEGeneral Aviation(Non-NPIAS)Beulah Municipal 761,451Drayton Municipal 69,615Enderlin - Sky Haven 430,360Killdeer - Dunn County 137,068Kindred - Robert Odegaard Field 2,526,462Larimore MunicipalLakota Municipal 2,002,555Leeds Municipal 557,196 2,132,491LaMoure Rott Municipal 538,778Maddock Municipal*Langdon - Robertson Field 145,478Mayville Municipal 544,806Linton Municipal 499,750Minto Municipal 355,515Lisbon Municipal 143,604Napoleon Municipal*Mandan Municipal 2,459,825New Rockford - Tomlinson Field 0 0 1,718,973Mohall Municipal 358,226New Town MunicipalMott Municipal 197,646Page RegionalNorthwood Municipal - Vince Field 275,994RoletteOakes Municipal 199,709St. Thomas Municipal 1,193,392Park River - W C Skjerven Field 124,740West Fargo Municipal 1,095,791 1,490,577Westhope Municipal 1,001,548 1,501,206Wishek Municipal 1,160,558Parshall-HankinsPembina Municipal - Thomas Nord FieldRolla Municipal 270,396Five-Year General Aviation Non-NPIAS Funding TotalRugby Municipal 419,224FIVE-YEAR STATEWIDE FUNDING TOTAL**Stanley Municipal 1,054,916Tioga Municipal 2,108,366Valley City - Barnes County MunicipalWahpeton - Harry SternWalhalla MunicipalWashburn MunicipalWatford City MunicipalFive-Year General Aviation NPIAS Funding Total 33,443 1,193,391 487,609 12,873,207 164,537,185* No or minimal five-year funding needed because airport was recently constructed or reconstructed.** Williston was excluded from the funding needs assessment. 344,548 1,415,622 166,409 20,316 4,188,098 50,488,494NORTH DAKOTA AERONAUTICS COMMISSION . WWW.AERO.ND.GOV15

SummaryThis report summarizes the results of the pavement evaluation conducted in North Dakota as partof the state APMS database update for airports. This includes 7* NPIAS commercial service airports,46 NPIAS general aviation airports and 18 non-NPIAS general aviation airports. The system currentlyhas 56.9 million square feet of pavement – 32.4 million square feet at commercial service airportsand 24.5 million square feet at general aviation airports. In 2015, the PCI value for the state was 76.During a visual inspection of the pavements in 2018, it was found that the current weighted PCI ofthe pavement network is 79. If no funding is provided, this PCI value will steadily fall to 71 by theend of 2023. If the funding anticipated in the state budget is provided, the 2023 overall PCI value ofthe system is anticipated to be 80. If all work identified were to be completed, the 2023 overall PCI ofthe system is anticipated to increase to a value of 88.* Williston was not inspected as part ofthe 2018 study due to the relocation ofthe existing airport. Williston’s plannedpavement inventory data used as partof the analysis includes area, age andcondition (assumed PCI of 100) butdoes not include the cost.162018 PAVEMENT CONDITION INDEX (PCI) STUDYApproximately 165 million in funding would be needed over the next five years to complete allwork that has been identified in the unlimited budget scenario. This includes approximately 101.2million for commercial service airports and 63.4 million for general aviation airports. Additionalinformation can be found by visiting the NDAC website, WWW.AERO.ND.GOV.

2018 PAVEMENTCONDITION INDEX (PCI)STUDY2018EXECUTIVESUMMARYFOR ADDITIONAL INFORMATION, PLEASE VISIT WWW.AERO.ND.GOV

NORTH DAKOTAAERONAUTICS COMMISSIONA S TAT E W I D E V O I C E F O R AV I AT I O N2018 PAVEMENTCONDITION INDEX (PCI)STUDYwww.aero.nd.gov

Airports in North Dakota are a combination of asphalt concrete (AC) pavement and Portland cement concrete (PCC) pavement with there being slightly more AC pavement than PCC pavement. These two pavement types have unique pavement distresses and repairs. The following is a brief description of commonly observed

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