Developing an ArcGIS Pro Toolkit for Assessing Bridge Construction Effects on Sediment Regime and Aquatic Habitat
محل انتشار: بیستمین کنفرانس هیدرولیک ایران
سال انتشار: 1400
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 303
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شناسه ملی سند علمی:
IHC20_050
تاریخ نمایه سازی: 6 آذر 1400
چکیده مقاله:
Eroded materials released from bridge construction sites can alter sediment regime and geomorphological conditions of receiving streams and may have short- and long-term impacts on aquatic habitat. One of the biggest inconsistencies in construction-related stream assessments is the delineation of the impacted area. Environmental agencies usually define the minimum buffer length for habitat surveys. This length comprises the entire project footprint and buffers for areas of the potential impact that include a minimum length upstream and downstream of the project footprint. It is unknown whether these buffer lengths adequately protect aquatic species. Field monitoring and numerical modeling efforts have been reported in various road and bridge construction projects where attempts are made to assess construction impacts on the stream sediment regime and aquatic habitat. However, no predictive model is available to quantify the potential release of sediment during the construction of bridges. A GIS-based Predictive Sediment Toolkit is developed to estimate overland erosion, determine the potential depositional area and suspended sediment concentration downstream of bridges, and assess the impact of construction activities on aquatic life. The development of the toolkit and its application in a bridge construction site are presented in this paper.
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نویسندگان
Habib Ahmari
The University of Texas at Arlington, Texas, USA
Saman Baharvand
The University of Texas at Arlington, Texas, USA
Matthew Pebworth
The University of Texas at Arlington, Texas, USA