Missouri

State Highways

Present
1948

Secondary and County Highways

Secondary Route AB
Pemiscot County 217. These are being phased out in favor of the standard pentagon.

Other roads

Avenue of the Saints


Montana

State Highways

Present
1948

Secondary Highways

Secondary Highway


Nebraska

State Highways

Present
1948

County Highways

Spur Route 64A. The "64" refers to Nehama County, which is the 64th county alphabetically in Nebraska. Spurs and links are lettered sequentially in each county.
Link Route 45B. The "45" refers to Holt County.


Nevada

State Highways

Present
1948


New Hampshire

State Highways

Present
1948
Until recently