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  • Users: Drumchaser
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  1. Drumchaser

    Crushed Portland Cement Concrete used as Flexible Base

    Does anyone have some data/comments (firsthand) on the performance of CPCC used as flexible base? Preferably with only a chip seal as the final riding surface. Thanks [americanflag] thread822-293650
  2. Drumchaser

    Vertical Curve calc.s

    I am always on the lookout for a rdwy vertical curve spreadsheet. If any are known, please advise. Thanks
  3. Drumchaser

    opted not to hijack AC's thread-MUTCD

    hey big [xmastree] ~ was not sure if there was any merit to your statement or just frivolous jocularity~ It is my understanding the (US) MUTCD is the national standard (FHWA) for which all other STA's model their Manuals after. In order to qualify/receive federal funds STA's are...
  4. Drumchaser

    Before ACP overlay: to mill or not to mill

    I have heard from others that many somewhat recent ACP overlays, that were not milled before hand, are falling apart. Are others out there experiencing this? And if so was a chip seal placed before the overlay? Have you had more success/longevity with overlays when milling was performed...
  5. Drumchaser

    Surveying/Layout for Bridge components

    Apologies if there is another more suitable Thread. Is anyone aware of an existing spreadsheet for distance, cross slope, and angle input for calculating locations of bridge sub and super structure components? Any help in this matter would be "most" appreciated.
  6. Drumchaser

    Thanks for the invite

    BigH & associates: Honored to have access to geo knowledge and expertise. I have perused thru some of your Threads, and I find some very interesting. Foundations....... My limited experience is with precast and H-pile, and drilled shafts (dry, cased, uwater, and slurry displaced) Most of my...
  7. Drumchaser

    PFC anyone

    Anybody had any experience with Permeable Friction Course? I think it is outstanding, with only a few drawbacks: cost, tie-ins, and maintenance.
  8. Drumchaser

    New: Mustang, Challenger, or other?

    Now that gas is tolerable, I have been daydreaming about a new muscle car. Have not had one in a long long time. Was thinking that a fellow might strike a good deal during the current climate. Any takers? Thanks
  9. Drumchaser

    Const. work zone S L reductions / recast

    Okay, what I would really like to see is "actual" instances of use of WZ speed reductions. Anything ranging from expressway to two-lane (one-lane flagger TCP) facilities would be great. Please no manual, policy, or organizational rhetoric. You actually employed the reduction(s), and the good...
  10. Drumchaser

    HES conc. for bridge deck

    Anybody ever tried this? The HES would be high early strength concrete used to pour a new bridge slab.
  11. Drumchaser

    work zone speed reductions at large

    Would like to throw this out there and receive comments on how effective some of you all think this is. Our standards have taken some of the teeth out of using these, by making them harder to acquire. Not looking for MUTCD qoutes, just general opinions, instances of success, failure, problems...
  12. Drumchaser

    Bridge Layout Question

    I used to do layout early in my career, before I got lazy. I have always dreaded skewed bridges, and has been quite some time since I have visited this. The Plans include a Begin Bridge Elevation at each end (Fin. Grade) and include the bearing seat elevations. (this is standard in our plans)...

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