Practical guides on TS&L studies, AASHTO LRFD design, cost estimation, and bridge project planning — written for practicing structural engineers.
A step-by-step walkthrough of the Type, Size, and Location study process — what inputs you need, how to evaluate alternatives, and how to produce a defensible cost estimate for state DOT submittal.
Read article →What P10, P50, and P90 cost estimates mean, why FHWA increasingly requires them for capital programming, and how to produce one without a statistics background.
Read article →Practical reference for selecting WF precast girder sections — span tables from WF36TDG to WF95TDG, depth-to-span ratios, spacing rules, and the non-engineering factors that often drive the final choice.
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