When I'm clinching, while I obviously want to clinch the whole highway, I go out of my way to clinch a particular state's portion or at least travel a bit of it to cross off the list.
If you include the Alaska, Hawai'i, and Puerto Rico 2dis, by my count, we have 248 "segments" to clinch. Was just curious if a) anyone specifically tries to do this, and b) anyone else has similar clinches or more.
Bold I have clinched the state (or whole interstate if that's bolded as well).
Italics I have clinched one of the separate versions of the highway (i.e. 86 West vs. 86 East).
Strikethrough I have not travelled.
A1: AK
A2: AK
A3: AK
A4: AK
H1: HI
H2: HI
H3: HI
PR1: PR
PR2: PR
PR3: PR
2: TX
4: FL
5: CA, OR, WA
8: CA, AZ
10: CA, AZ, NM, TX, LA, MS, AL, FL
11: NV
12: LA
14: TX
15: CA, NV, AZ, UT, ID, MT
16: GA
17: AZ
19: AZ
20: TX, LA, MS, AL, GA, SC
22: MS, AL
24: IL, KY, TN, GA
25: NM, CO, WY
26: TN, NC, SC
27: TX
29: MO, IA, SD, ND
30: TX, AR
35: TX, OK, KS, MO, IA, MN
37: TX
39: IL, WI
40: CA, AZ, NM, TX, OK, AR, TN, NC
41: WI
43: WI
44: TX, OK, MO
45: TX
49: LA, AR, MO
55: LA, MS, TN, AR, MO, IL
57: MO, IL
59: LA, MS, AL, GA
64: MO, IL, IN, KY, WV, VA
65: AL, TN, KY, IN
66: VA, DC
68: WV, MD
69: TX, MS, KY, IN, MI
70: UT, CO, KS, MO, IL, IN, OH, WV, PA, MD
71: KY, OH
72: MO, IL
73: NC
74: IA, IL, IN, OH, NC
75: FL, GA, TN, KY, OH, MI
76: CO, NE | OH, PA
77: SC, NC, VA, WV, OH
78: PA, NJ, NY
79: WV, PA
80: CA, NV, UT, WY, NE, IA, IL, IN, OH, PA, NJ
81: TN, VA, WV, MD, PA, NY
82: WA, OR
83: MD, PA
84: OR, ID, UT | PA, NY, CT, MA
85: AL, GA, SC, NC, VA
86: ID | PA, NY
87: NC | NY
88: IL | NY
89: NH, VT
90: WA, ID, MT, WY, SD, MN, WI, IL, IN, OH, PA, NY, MA
91: CT, MA, VT
93: MA, NH, VT
94: MT, ND, MN, WI, IL, IN, MI
95: FL, GA, SC, NC, VA, DC, MD, DE, PA, NJ, NY, CT, RI, MA, NH, ME
96: MI
97: MD
99: PA, NY
I have clinched 159 of the 248 for 64.1%.
I have been on 229 of the 248 for 92.3%
Interestingly, I have been on I-69 in every state that it exists, but have not clinched any state's portion. I also have about 60% of I-40, but only two of its eight states clinched.