Bulletin Bulletin 189 – Microtunnel Settlement Monitoring- Interstate-5 Pierce County, WashingtonMarch 8, 2010/by jsubt http://www.subterra.us/wp-content/uploads/2017/02/squareLogoWork.jpg 251 300 jsubt http://www2.subt.com/wp-content/uploads/2016/04/aspectRatioWebsite-300x137.jpg jsubt2010-03-08 06:49:262017-02-11 00:17:32Bulletin 189 - Microtunnel Settlement Monitoring- Interstate-5 Pierce County, Washington