That looks pretty good, though perhaps a little longer than it needs to be. Is there a reason why you've got those extra turns in the last section? I think instead of turning left from Oakwood on to Fuller, you could just right on Poinsettia. Similarly, when you're coming north on Formosa, you could turn left on Clinton instead of going up to Rosewood.

So the Omphaputer says this:

MAKE OMPH KNOT: One rock, covered by a net, with at least 27 knots.
OMPH STRENGTH: K1 + K2 + K3 ... + K27. K = (C x S)/6
Trace a labyrinth (any design) at least 3 stadia wide. The bigger the labyrinth, the more powerful it is.
The labyrinth must have AT LEAST 3 circuits. The more circuits, the stronger the knot.
Earth-scale omphalos knots must be created within omph city limits. OMPH CITIES PENDING.

Presuming that C is Cuircuits and S is width in stadia (185 meters; I think yours about 17 stadia wide), I estimate the labyrinth to have a strength of about 8.5.

Could others double-check my math and logic?

--Paul

I don't think so. He did say:

In short, a labyrinth must have a true center. You cannot have 12
circuits on one side, 2 circuits on the other side. The circuits must
wrap around a central point equally. For example, six circuits above
and below, and on each side. While I do not believe our city-sized
laybrinths need to be of perfect design, they surely must locate the
functional center of the labyrinth at approximately the actual center
of the labyrinth.