The latest report from Swamplot’s anonymous tunnel correspondent indicates that neighboring Asian fast casual and counter spots Thai Spice and Sidewalk Cafe appear to have both closed in the tunnel beneath 811 Louisiana (also previously and variously known as Two Shell Plaza or 777 Walker. Signage from the building’s management folks went up by the end of February, and the Thai Spice branch’s phone number is now out of service as well. An outdated leasing flier still up on the 811 Louisiana LoopNet page shows the layout of the spaces amid the rest of the tunnel stretch, between the Esperson building and the tower at 611 Walker: