| | State | Road | Type of network structure | Component highways | Operating authority |
| | AL | I | Tree-like, including Birmingham beltway | I-20, I-22, I-59, I-65, I-85 | AL Department of Transportation (DOT) | | AK | S | Tree in Southcentral area | AK-1, AK-3 | AK DOT and Public Facilities | | AZ | I | Tree-like, including Phoenix beltway | I-8, I-10, I-15 I-17, I-19, I-40 | AZ DOT | | AR | I | Tree-like, including Little Rock beltway | I-30, I-40, I-49, I-55, I-530, I-555 | AR Highway and Transportation Department | | CO | I | Tree-like, including Denver beltway | I-25, I-70, I-76 | CO DOT | | GA | I | Tree-like, including beltways in Atlanta, Augusta, Columbus, and Macon | I-16, I-20, I-59, I-75, I-85, I-185, I-285, I-675, I-985 | GA DOT | | ID | I | Tree | I-15, I-84, I-86, I-90 | ID Transportation Department | | IN | T | Tree | I-80, I-90 | IN Finance Authority/ ITR Concession Company LLC | | KS | T | Tree | I-35, I-70, I-335, I-470 | KS Turnpike Authority | | ME | T | Tree | I-95 | ME Turnpike Authority | | MA | T | Tree | I-90 | MA DOT | | MN | I | Tree-like, including Minneapolis beltway | I-35, I-90, I-94 | MN DOT | | MS | I | Tree | I-20, I-22, I-55, I-59 | MS DOT | | MT | I | Tree | I-15, I-90, I-94 | MT DOT | | NE | I | Tree-like, including Omaha beltway | I-76, I-80 | NE Department of Roads | | NV | I | Tree-like, including Las Vegas beltway | I-15, I-80, I-515 | NV DOT | | NH | T | Tree | I-93, I-95, NH-3, NH-16 | NH DOT | | NM | I | Tree | I-10, I-25, I-40 | NM DOT | | NY | T | Tree | I-87, I-90 | NY State Thruway Authority | | ND | I | Tree | I-29, I-94 | ND DOT | | OH | T | Tree | I-76, I-80, I-90 | OH Turnpike Commission | | OK | T | Tree | I-35, I-40, I-44, US-66, US-165, US-177, US-412, OK-1, OK-51, OK-66, OK-165 | OK Turnpike Authority | | OR | I | Tree-like, including Portland beltway | I-5, I-84 | OR DOT | | PA | T | Tree | I-70, I-76, I-276, I-376, I-476, PA-43, PA-60, PA-66, PA-576 | PA Turnpike Commission | | SD | I | Tree | I-29, I-90 | SD DOT | | UT | I | Tree-like, including Salt Lake City beltway | I-15, I-70, I-80, I-84 | UT DOT | | VT | I | Tree | I-89, I-91, I-93 | VT Agency of Transportation | | WV | T | Tree | I-64, I-77 | WV Parkways Authority | | WY | I | Tree | I-25, I-80, I-90 | WY DOT |
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