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Transportation and Climate Change Clearinghouse

Impact Forecasts

State of North Carolina Statistics

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Increase in Eustatic SLR 6 cm 6.5 cm
Regular
Inundation
At-Risk Total Regular
Inundation
At-Risk Total
Length Km % Affected Km % Affected Km % Affected Km % Affected Km % Affected Km % Affected
Interstates 0.1 0% 0.6 0% 1 0% 0.1 0% 0.6 0% 1 0%
Non-Interstate Principal Arterials 13.9 0% 83.0 1% 97 1% 14.3 0% 82.9 1% 97 1%
Minor Arterials 11.9 0% 161.5 3% 173 4% 12.5 0% 161.4 3% 174 4%
National Highway System (NHS) 27.9 0% 213.5 3% 241 3% 28.5 0% 213.6 3% 242 3%
Rails 8.5 0% 60.2 1% 69 1% 8.6 0% 60.4 1% 69 1%
Area Acres % Affected Acres % Affected Acres % Affected Acres % Affected Acres % Affected Acres % Affected
Ports 0 0% 0 0% 0 0% 0 0% 0 0% 0 0%
Airport Property 94 0% 358 1% 452 1% 94 0% 360 1% 455 1%
Airport Runways 0 0% 18 1% 18 1% 0 0% 19 1% 19 1%
Total Land Area Affected 524,321 2% 1,043,975 3% 1,568,297 5% 530,986 2% 1,039,655 3% 1,570,641 5%


Increase in Eustatic SLR 13 cm 17.5 cm
Regular
Inundation
At-Risk Total Regular
Inundation
At-Risk Total
Length Km % Affected Km % Affected Km % Affected Km % Affected Km % Affected Km % Affected
Interstates 0.1 0% 0.6 0% 1 0% 0.1 0% 0.6 0% 1 0%
Non-Interstate Principal Arterials 19.8 0% 82.1 1% 102 2% 24.8 0% 80.7 1% 106 2%
Minor Arterials 20.8 0% 157.0 3% 178 4% 27.9 1% 152.5 3% 180 4%
National Highway System (NHS) 38.2 1% 212.5 3% 251 4% 46.8 1% 210.2 3% 257 4%
Rails 10.2 0% 65.1 1% 75 1% 11.3 0% 66.8 1% 78 1%
Area Acres % Affected Acres % Affected Acres % Affected Acres % Affected Acres % Affected Acres % Affected
Ports 0 0% 0 0% 0 0% 0 0% 0 0% 0 0%
Airport Property 106 0% 392 1% 497 1% 114 0% 418 1% 532 1%
Airport Runways 0 0% 22 1% 22 1% 0 0% 25 1% 25 1%
Total Land Area Affected 618,577 2% 983,717 3% 1,602,294 5% 678,938 2% 945,874 3% 1,624,812 5%


Increase in Eustatic SLR 21 cm 31 cm
Regular
Inundation
At-Risk Total Regular
Inundation
At-Risk Total
Length Km % Affected Km % Affected Km % Affected Km % Affected Km % Affected Km % Affected
Interstates 0.1 0% 0.6 0% 1 0% 0.2 0% 0.5 0% 1 0%
Non-Interstate Principal Arterials 28.0 0% 80.1 1% 108 2% 38.5 1% 75.8 1% 114 2%
Minor Arterials 34.5 1% 147.9 3% 182 4% 56.7 1% 131.7 3% 188 4%
National Highway System (NHS) 53.7 1% 208.3 3% 262 4% 76.7 1% 198.0 3% 275 4%
Rails 12.1 0% 68.2 1% 80 1% 17.4 0% 69.2 1% 87 1%
Area Acres % Affected Acres % Affected Acres % Affected Acres % Affected Acres % Affected Acres % Affected
Ports 0 0% 0 0% 0 0% 0 0% 0 0% 0 0%
Airport Property 122 0% 439 1% 561 2% 151 0% 508 1% 658 2%
Airport Runways 0 0% 27 1% 27 1% 0 0% 33 1% 33 1%
Total Land Area Affected 730,233 2% 914,004 3% 1,644,237 5% 869,277 3% 826,503 3% 1,695,781 5%


Increase in Eustatic SLR 30 cm 48.5 cm
Regular
Inundation
At-Risk Total Regular
Inundation
At-Risk Total
Length Km % Affected Km % Affected Km % Affected Km % Affected Km % Affected Km % Affected
Interstates 0.2 0% 0.5 0% 1 0% 0.2 0% 0.6 0% 1 0%
Non-Interstate Principal Arterials 37.5 1% 76.1 1% 114 2% 51.6 1% 73.1 1% 125 2%
Minor Arterials 54.7 1% 133.1 3% 188 4% 80.2 2% 120.9 2% 201 4%
National Highway System (NHS) 74.3 1% 199.1 3% 273 4% 113.4 2% 181.3 3% 295 4%
Rails 17.0 0% 68.9 1% 86 1% 24.2 0% 72.9 1% 97 1%
Area Acres % Affected Acres % Affected Acres % Affected Acres % Affected Acres % Affected Acres % Affected
Ports 0 0% 0 0% 0 0% 0 0% 0 0% 0 0%
Airport Property 147 0% 500 1% 647 2% 219 1% 690 2% 908 2%
Airport Runways 0 0% 32 1% 32 1% 1 0% 52 2% 53 2%
Total Land Area Affected 857,746 3% 833,030 3% 1,690,776 5% 1,047,536 3% 736,193 2% 1,783,730 6%


Increase in Eustatic SLR 59 cm
Regular
Inundation
At-Risk Total
Length Km % Affected Km % Affected Km % Affected
Interstates 0.3 0% 0.5 0% 1 0%
Non-Interstate Principal Arterials 59.5 1% 70.7 1% 130 2%
Minor Arterials 93.7 2% 115.3 2% 209 4%
National Highway System (NHS) 134.7 2% 170.7 2% 305 4%
Rails 28.9 0% 76.6 1% 105 1%
Area Acres % Affected Acres % Affected Acres % Affected
Ports 54 12% 163 35% 217 47%
Airport Property 257 1% 816 2% 1,073 3%
Airport Runways 2 0% 65 2% 67 2%
Total Land Area Affected 1,144,709 4% 691,357 2% 1,836,066 6%


1. Sources: Interstates, Non-Interstate Principal Arterials, Minor Arterials, and NHS - National Highway Planning Network (NHPN). Rails - Federal Railroad Administration. Ports - Digitized from Digital Orthophoto Quadrangles clipped to the mean high water line. Airport Property and Runways - Tele Atlas.
2. The NHPN includes all Interstates and other Principal Arterials, all Rural Minor Arterials, and a small portion of the Urban Minor Arterials, as well as the NHS.
3. This study includes the Rural Minor Arterials but not the Urban Minor Arterials.
4. See section 3 of the "Study Goals and Methodologies" for an explanation of how these results were generated. The results should not be understood as defining specific changes in water levels at precise points in time.
5. The Total column for each scenario includes the sum of Regular Inundation and At-Risk. The At-Risk column does not include Regularly Inundated data.

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