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  1. hmcrae

    ACFD Fire Truck Access

    The International Fire Code provides requirements for fire apparatus access roads. Your local AHJ may have amended the values in the IFC (if it has been adopted). If no IFC, then the local development regulations should include their requirements. Failing those items, time to visit with your...
  2. hmcrae

    H20 Truck Loading

    I would assume your state DOT would have a standard for box culverts? TxDOT has a standard for almost every box you could need, although a modified standard is sometime used.
  3. hmcrae

    ABC vs. Gravel

    Am sorry to add more, but... I once made a friendly jab to a fellow about his quarry not being able to donate their usual 20 tons of gravel to a local charity auction. He then responded that gravel comes from a river pit, and that they sold crushed rock. After that I have been careful in the...
  4. hmcrae

    Spill Containment for Natural Gas Storage Facility

    I have not designed such facilities, but have worked with GCL on petroleum projects as a contractor. The American Petroleum Institute seemed to be the governing body on designs for much of that project. Have you checked their codes?
  5. hmcrae

    Training for Soils Lab Techs

    have you looked at NICET certs? http://www.nicet.org/trainingProviders/directory.cfm
  6. hmcrae

    Commercial driveway connection to locad road

    If the road is already there, you have no choice but to meet its longitudinal slope of 5% with a cross slope of 5%. Figure your math off the driveway centerline (839.7 to 842.5) intersecting the edge of the local road. The warp will be determined by rolling the road from the 5% slope to meet...
  7. hmcrae

    City Site Plan Requirements

    My client bouught it (is buying) from the developer. We are the first on the block. When the area is fully built out, all will loop. I would not complain about completing a loop across our property. They want a the developer's dead end main extended into a loop (a loop which is supposed to...
  8. hmcrae

    City Site Plan Requirements

    just making sure I did not miss the point of subdiv. thanks.
  9. hmcrae

    City Site Plan Requirements

    The city subdivision rules say the developer shall provide fire flows. Our guy bought the lot with the understanding of utilities included. I think the City is adding requirements on the site plan that belong to the subdivision. Its not really an answerable question without reading the entire...
  10. hmcrae

    Cold Mill & Overlay Adjacent to Full Depth Road Widening

    Offsetting the top course joint 2-feet will strengthen the pavement by spacing the vertical joints apart, rather than stacking. If the milling did not provide a good clean joint, I would think operator error or poor machine maintenance (missing teeth or sockets, incorrect teeth) would be the cause.
  11. hmcrae

    City Site Plan Requirements

    I am the engineer on a 1-acre site plan. The Subdivision eng brought a 12-inch water line to service our lot and the adjoining lots from the original property. The City is now telling me our building owner must, for fire safety, provide 1000-feet of offsite water line to complete the...
  12. hmcrae

    Roadway design - typical sections

    Each time you add, drop or transition a lane you should include each of those. This should include the beginning lane config, transitional (ie turn lane transition 0ft to 12ft), and final lane config. Don't forget to include any ditches your drainage will require in these typical sections...

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