BIRs for buildings that were found with a pile cutoff elevation of 5 or less are indicated in green.
BIRs for buildings that were found with a pile cutoff elevation of 5.1 or more are indicated in red.
BIRs that were found but yielded no pile cutoff elevation information are indicated in orange.
Buildings that are known to be on piles but had no BIR are indicated in blue.
BIR readings map, PDF
BIR East Boston readings map, PDF