Colorado’s I-70 Could Have Boston’s Big Dig Beat
Failures
Tunnel Repair Begins on CO I-70
ENR reports that repair work has begun on a portion of the Hanging Lake Tunnel on I-70 in Glenwood Colorado after a crack opened up in the tunnel bore ceiling slab. Read on for more info. (CDOT Photo)
Miscellaneous
‘Geotechnical Monument’ in St. Louis
An 11-foot diameter limestone core has become a ‘geotechnical monument’ of sorts according to the good folks at Dan Brown and Associates. DBA was the geotechnical designer for a new bridge carrying I-70 over the […]
Standards and Codes
US House Passes National Tunnel Inspection Program
The US House of Representatives passed legislation approving a national tunnel inspection program. This of course came about as a result of a fatal accident from 2006 in a tunnel on Boston’s Big Dig project where a concrete ceiling tile fell on a car killing one person. More after the break.