GIS In Water Resources C E 394K Impact of Floods to the Bridge Deterioration Process – The case of Onion Creek Oscar Galvis Nov 22th 2016.

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Presentation transcript:

GIS In Water Resources C E 394K Impact of Floods to the Bridge Deterioration Process – The case of Onion Creek Oscar Galvis Nov 22th 2016

Problem: Floods Impact Bridge “Natural” Deterioration Overtopping Impacts on Piers and abutments And a lot more!

Methodology Bridge Inventory Hydrologic Information HAND Analysis Bridge Deterioration Due to Floods Assess Impacts on Bridges LIDAR Information Estimate Economic Impact

Case Study: Onion Creek

Inputs Bridge Inventory Lidar Information (Thanks to Lukas Godbout) Height of the Bridges Hydrologic Information NHD flowlines Maximum flow Wright et al. (2012) Potential Maximum Flow for 2100

Bridge Deterioration Due to Floods Overtopping Inundation height is 90% or more of bridge structure height Treatment: Replacement Erosion of Piers Base Inundation height between 70% - 90% of bridge structure height Treatment: Increase footing depth

Results N

Results Bridge Height = 12 ft

Results Inundation Height based on Maximum Flow = 14.2 ft

Moving Forward Automate analysis for more catchments

Thanks you for your attention! Any questions?