Re: Elk Park Bridge Washout

This sounds like far less than the whole story. Two months minimum to replace a 40 foot washout?
A week should be more than enough.
Day one move the log loader used for the fire remediation/ tree removal into place and remove the log jam, starting up stream.
Day two place metal culverts in the stream under the hanging track, fill in around the metal culverts, inspect bridge
Day three when fill under track is completed, place gabions on the streamside of the fill to prevent erosion.
Day four place new ballast around the ties, tamp into place.
Day five test new fill, inspect bridge again prior to testing, divert stream into original channel, fill in newly created channel above washout,
Day six install gabions on streamside of new fill.
Day seven observe prior to resuming service.

Probably would require a four man crew with an excavator, front end loader and log loader, miscellaneous track gang equipment.
Estimate about 39-40 yards of fill needed under track, other fill could be mined locally at site, side dump hopper bins with fill could be loaded onto flatcars
or 2-3 yard bulk bags from a local construction supply house.

Twenty plus years ago I filled in a failing levee using a four man crew, the fill was 200 feet long, 10 feet wide, twenty feet high on unstable peat marsh in
an environmentally sensitive wetlands area, took three days used about 1800 cubic yards of road base.



Edited 1 time(s). Last edit at 06/22/2020 08:17PM by sp4149.