2 thoughts on “Washington monument

  1. Geoduck, I’m not seeing the danger… are you saying that the monument’s foundation should be deepened to reach unmovable blue clay rather than the composite sand/gravel/clay it is currently set into?

    Are you saying there a danger of liquefaction of the fill, during an earthquake, as we saw in filled-in areas of the Marina District of San Francisco in 1989? Explain, please: We’re not geotechnical civil engineers here.

Comments are closed.