Laserfiche WebLink
<br />Consequences <br /> <br />Subsidence can result in serious structural damage to <br />buildings. roads, Irrigation ditches, underground utilities <br />and pipelines. It can disrupt and alter the flow of surface <br />or underground water. Sur face depress i ens created by <br />subsidence may be fl lied In, only to sink further because the <br />underground void has not been completely closed. Areas may <br />appear to be free of subs I dence for many years and then <br />undergo renewed gradual or even drastic subsidence. <br /> <br />~ <br />-~~~~~~ <br />_P0,L <br /> <br /> <br /> <br />~:~...' <br />~_~~C':.;~ <br /> <br />,"""_ ~>A.,,:;c <br />~mr~ <br /> <br />This l'moonscape'l In Douglas County shows subsidence <br />abandoned underground clay workings. <br /> <br />over <br /> <br />AA <br /> <br />Aggravating Circumstances <br /> <br />Weight, Including surface developments such as roads, <br />reservoirs, and buT Idings, and man-made vibrations from stich <br />activities as blasting, heavy truck or train traffic can <br />acee I erate the natura I processes of subs I dance. F I uctuat Ions <br />In the level of underground waters caused by pumping or by <br />Injecting fluids Into the earth can Initiate sinking to fl I I <br />the empty space previously occupied by water or soluble <br />minerals. <br /> <br /> <br />Subsidence pit In a trailer park at Lafayette. This <br />25 ft ho Ie, 30 f t deep resu I ted from co I lap se <br />overlying materials into an Incl ined mine shaft. <br /> <br />25 ft x <br />of the <br />