Unit Rates (new posts) http://lgam.wikidot.com/forum/c-112613/unit-rates Posts in the forum category "Unit Rates" Fri, 15 May 2026 01:33:15 +0000 http://lgam.wikidot.com/forum/t-239535#post-775289 Box Culvert Unit Rates: Box Culvert Unit Rates http://lgam.wikidot.com/forum/t-239535/box-culvert-unit-rates#post-775289 Wed, 05 May 2010 03:24:26 +0000 Wayne Eddy 220040 I was thinking about how to come with unit rates for infrequently used Box Culvert sizes recently, and I came up with the idea of plotting a graph of "cost-per-metre" vs "the square root of culvert area" for a range of culverts, and plotting a best fit curve through the points and using the graph to estimate the cost of installing other sized culverts. I came up with the graph below.

Box-Culvert-Graph.png

I'd be interested to hear if others think this method would generate a reasonable unit rate for culvert sizes for which no local cost data is available?

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