Interblox 15 is one of the north-to-south running Interbloxes in Robloxia. It is the most dangerous Interblox (in terms of car crashes) in the whole country. Most of the car crashes on this Interblox occur in six-mile intervals. The intervals start three miles before the Bloxy River crossing and end three miles after the Bloxy River crossing. Before entering Brookhaven, Interblox 15 changes to Kionne State Route 31.

Interblox 15 highlighted in light yellow.

Interblox 15 highlighted in light yellow.

Interblox 15 near RoCity Historical District used to be signed State Route 73, though nobody knew what state the historical district is in.

South to north
BLOXY RIVER CROSSING ONE
MeepCity
BLOXY RIVER CROSSING TWO
National Intelligence Office, East Campus
BLOXY RIVER CROSSING THREE
RoCity Historical District
BLOXY RIVER CROSSING FOUR
Polycity
Nikilis City
Interblox 17 North: Arsenal City

Interblox 17 South: The Amazeman City

BLOXY RIVER CROSSING FIVE
Bloxy City
River City
INTERBlOX 15 ENTERS KIONNE REPUBLIC
Vryburg
Alexville
Bloxington
Phemford City

Business Loops

BloxFanio Avenue serves as a business loop.

Interbloxes

Primary Interbloxes

Note that Interbloxes shown in Italic is a proposed interblox.
0 1 2 3 4 5 6 7 8 9

10 11 12 13 14 15 16 17 18 19

20 21 22 23 24 25 26 27 28 29

30 31 32 33 34 35 36 37 38 39

40 41 42 43 44 45 46 47 48 49

50 51 52 53 54 55 56 57 58 59

60 61 62 63 64 65 66 67 68 69

70 71 72 73 74 75 76 77 78 79

80 81 82 83 84 85 86 87 88 89

90 91 92 93 94 95 96 97 98 99

Secondary Interbloxes

142 145 165 166 180/BLOXOMING 199/BLOXBURG VALLEY 242 245 265 266/B240 269 293

345 355 365 376 465 509 565 610 666

710 755 762 880 897 976

7719 9999

35W/BLOXAS 35E/BLOXAS 35W/ROSSOTA 35E/ROSSOTA 69W 69C 69E

B1 B2 B3 B40 B202 C1 C2 C3 C4 R1 R6