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  • Users: Pinwards
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  1. Pinwards

    ADA Curb Ramps

    A common situation in site and roadway design for new construction is the standard 6" vertical curb with a 2% cross-sloped sidewalk above, and an ADA-compliant pedestrian ramp is needed to transition from street/gutter level up to the sidewalk. Per the ADA guidance, any total rise in a ramp over...
  2. Pinwards

    Water Main Loop Madness

    What are the requirements to loop potable water mains in your jurisdictions? Are short (~150 ft) cul-de-sacs allowed to have "dead-end" mains, with a hydrant or other flushing means on the end? We have a local jurisdiction that is now taking their requirement to "loop water mains wherever...
  3. Pinwards

    Design-Build competitions sustainable?

    For those who aren't aware of the delivery model. We occasionally participate in Design-Build competitions, where the owner/client puts together a Basis of Design, detailing what they want (often a building or campus in our line of development work) and the budget available, then put out an RFQ...
  4. Pinwards

    Hydrant Locations

    Anyone have input or standards-references on where to locate Fire Hydrants on un-curbed "rural" roadways? We have a mountainous project, with large cut/fill slopes, and roadways without curb/sidewalk. The cross-section is a typical 2-lane road, 2' shoulder, then 4:1 closeout to a narrow ditch...
  5. Pinwards

    Hydrant Flow Test Equipment recommendations

    We are looking to purchase equipment to do our own hydrant flow tests on a recently constructed project. There seem to be a lot of variations and different manufacturers. I understand the methodology will effect the results significantly, and have found ample resources on the how-to side, I'm...
  6. Pinwards

    Portable Turbidity Meter recommendations

    Anyone have recommendations for a good portable, hand-held digital Turbidity Meter. It will be used on a large construction project to manually monitor nearby stream/lake turbidity on a periodic basis, so needs to be durable and easy to use. There is a variety of models out there, so I was...
  7. Pinwards

    Septic Tank Effluent Pump (STEP) systems

    For those who have designed, or worked with STEP systems, what is the highest pressure system that you have seen? I know they are normally called "low pressure" sewer systems, but the Orenco series of STEP pumps have models that go up to, and over, 400 ft of head (P30 & P50 series). Anyone...
  8. Pinwards

    Potable Water Reservoir Sizing Criteria

    Anyone have some criteria, either from your jurisdiction, or general rules-of-thumb for sizing a potable water storage reservoir? There aren't any set criteria from the local agencies, and 10-States doesn't say much. The sources I found vary widely, just curious what others use or have used in...

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