[masraum]

Originally Posted by vash

I've done this. it's fun, and kinda weirdly exciting. 100ton jacks all slaved together thru a computerized manifold. jacks move slow, but they have a short throw, so the crews hustle. they move it up...block and wedge it up. lower the jacks and then lift the jacks to gain more elevation, and repeat.

I think it is all to improve clearances for military?

I believe it's because of a major upgrade planned for I10. The upgrades started just west of Houston and are proceeding west. There's probably 30 miles of I10 to the east that's already been upgraded, move cars off, completely recreate the road bed, pave with concrete and 3 lanes wide instead of 2, new feeders/frontage, the whole works. This overpass is maybe 3-5 miles west of the section that's about 12-15 miles long that's currently under construction. The expansion is planned to continue through the area for another 10-15 miles at least past this overpass. I think if they are raising the road bed, they have to raise the over pass to maintain clearance under it.
THe dark green line is already all new concrete, wider Interstate. The dark red line is currently under construction. The blue line is already planned for widening. The pink line crossing the blue line is where the overpass is.



But I'm just a random dude on the Internet, not a civil engineer, so I could be way off base.