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VTrans outlines hydraulic modeling guidance and a draft multimodal roadway guide

Chittenden County Regional Planning Commission Transportation Advisory Committee · April 1, 2026
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Summary

VTrans staff presented hydraulic and hydrology modeling updates for consultants and previewed the Vermont Multimodal Roadway Guide — a context-driven replacement for state design standards with a draft due Jan. 2026 to meet a legislative deadline.

Matthew Arancio of VTrans walked TAC members through recent technical updates and guidance documents. He said VTrans published hydraulic and hydrology modeling instructions and a technical resources webpage for consultants performing hydraulic modeling; the guidance is intended to reflect current best…

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