This long connector spans over I-405, State Route 90, Slauson Avenue, and Jefferson Boulevard (see figure above). Because of all the bridges underneath, one of the columns on the Northwest Connector pierces the deck of a lower structure. Although this idea may seem clever, it looks dangerous to drivers, especially during earthquakes. Unless the opening is large, the two bridges (with different periods) will move in different directions during earthquakes, possibly damaging the column and possibly both bridges.
California Bridges - Northwest Connector OC by Mark Yashinsky is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 United States License.