I'm working on a project which is in mountainous terrain. The elevation at the peak is 500 which slopes down at 1H:1V to elevation 405 where there is a level flat area about 12-15 feet wide. I’ll call this “flat area #1”. After “flat area #1” the elevation falls again at 1H:1V to elevation 363...
I've been tasked to come up with a life cycle cost analysis spreadsheet for various existing culverts.
Things to consider:
1) Many of these culverts are large diameter CMP
2) Many of these culverts are already at the end of their service life. Internal corrosion. Bituminous Coating gone on...