BACKGROUND

In 2019, NCHRP Project 15-61 developed a proposed design guide to equip hydrologic and hydraulic (H&H) engineers with tools to enhance current design methods in response to observed changes in storm intensity, flood frequency, and coastal water levels. The proposed guide addresses challenges such as inland and coastal flooding, storm surge impacts, and extreme precipitation events, helping engineers improve the planning, design, operation, and maintenance of transportation infrastructure under dynamic environmental conditions. It presents a comprehensive framework for incorporating up-to-date hydrologic data and analytical methods into project- and program-level H&H analysis.

As a result of current engineering standards, the availability of new datasets and modeling tools after the initial development of the proposed guide in 2019, research is needed to update the proposed guide  

OBJECTIVE

The objective of this research is to develop a guide for state DOTs and practitioners to support inland and coastal H&H design of transportation infrastructure. The accomplishment of the project objective will require at least the following tasks.

STATUS: Research in progress