Californians, apparently, will soon have to pay more taxes, in part to be repaired more than 200 bridges at risk of erosion, which was the main reason for the destruction of bridges in the state.
One of the vivid examples can serve as a bridge over the river San Gabriel on the 405 freeway. Recently inspected the construction of the shocked engineer Department of transportation Kevin flora. Huge washed with water holes at the base of the bridge, which daily transmits up to 282 000 cars.
As explained by flora, cause erosive damage of this bridge is a strong current that literally every minute destroying the building and damaging as metal structure and concrete.
According to officials, it is one of 230 bridges of highways of the state, requiring repairs, strengthening or replacement as they are prone to failure, caused by the rapid flow of water.
«Every 10 days a bridge collapses in the USA and it is caused usually by erosion, which has damaged the Foundation of the bridge,» said Jean-Louis Briau, Professor of civil engineering at the University of Texas A & M.
«These bridges were built before 1990 — are crumbling,» said he. «The good news is that since 1990-ies the amount of damage associated with erosion and erosion, in California and across the country is declining due to stricter regulatory requirements, caused by the destruction of the bridge in new York in 1987, which caused the death of 10 people.»
While funding for the repair of bridges is not approved, the Department of transportation save the situation than I can. For example, the base (legs) of the aforementioned bridge over the river San Gabriel fortified with massive boulders, and at the bridge a fixing roll degree and allows you to observe the safety of movement on it.
