403 Forbidden


nginx
403 Forbidden

403 Forbidden


nginx
Follow us:
403 Forbidden

403 Forbidden


nginx

The Today File

Your guide to the latest news from around the Northwest

July 6, 2013 at 12:34 PM

Highway 99 tunnel contractors fined for concrete spill

 

Seattle Tunnel Partners has been fined $2,000 because a concrete slurry spilled into city storm drains in Sodo last November.

The state Department of Ecology issued the penalty notice, dated June 27, and contractors have 30 days to pay it or to appeal. From the notice:

violation description

Ecology spokesman Larry Altose said the drains flow directly into Elliott Bay. In this case, the contractors released “Controlled Density Fill” because they wanted to seal off drains that were no longer needed — but some of the slurry went beyond the target.  None of it reached the bay, according to KaDeena Yerkan, a tunnel spokeswoman for the state Department of Transportation.  The four-page Ecology notice is linked here.

Construction teams typically inject CDF into soft soil, to prevent voids or slides that can damage nearby buildings. Another common use is to create a hard slab within wet or fill soils — so that a tunnel drill has a stable surface to grind through, as the cutting head moves forward under precise control.

 

Comments | More in Environment, Traffic & Transit | Topics: ecology, Highway 99 tunnel, Sodo

COMMENTS

No personal attacks or insults, no hate speech, no profanity. Please keep the conversation civil and help us moderate this thread by reporting any abuse. See our Commenting FAQ.



The opinions expressed in reader comments are those of the author only, and do not reflect the opinions of The Seattle Times.


403 Forbidden

403 Forbidden


nginx
403 Forbidden

403 Forbidden


nginx