ORCID Identifier(s)

0000-0002-4304-2468

Graduation Semester and Year

2020

Language

English

Document Type

Thesis

Degree Name

Master of Science in Civil Engineering

Department

Civil Engineering

First Advisor

Nick Fang

Second Advisor

Ernest Crosby

Abstract

Birds strikes are the most prevalent cause of airplanes strikes, and retention ponds near airports are one of the most attractive spots for both immigrant and domestic wildlife USDA (2017). Since the Trigg Lake, water surface area covers around 46 acres and is located approx. 1.5 miles from four main runways, which make the lake a perfect shelter for birds to build their nests and eventually strike departing and/or landing aircraft. Based on a Federal Aviation Administration (FAA) advisory circular, no retention pond should be constructed within five miles of an airport nor should it have standing storm runoff for more than 48 hours. Thus, the objective of this thesis is to downsize the Trigg Lake retention pond and ensure it becomes dry in less than 48 hours with no effect on downstream properties nor erosion on streams. Hydrologic and hydraulic models were utilized to establish a baseline and future model’s boundary conditions, existing condition discharges and water surface elevations will be simulated to help in the proposal of a flood mitigation system within the Trigg Lake watershed with no retention pond and no standing storm runoff for more than 48 hours. The proposed cascaded system of two detention vegetated ponds 1st South of W. Walnut Hill Ln and East of N. Service Rd with approx.12-acre area and 2nd pond around Trigg branch jurisdictional channel with approx. 12-acre (S3), upstream detention pond to control the larger sub-basin runoff (A1), which would also improve the airfield storm water quality and reduce flooding issue at N. Service Rd. if an additional underground detention structure is added within the pond A system. With proposed improvements as described in Chapter 3, the Trigg Lake area can be downsized to 12 acres instead of the existing 46 acres with less discharge from the outfall than the existing condition.

Keywords

Hydrologic, Hydraulic, Re-establish channel, Pre-Dam condition, HEC-HMS, HEC-RAS

Disciplines

Civil and Environmental Engineering | Civil Engineering | Engineering

Comments

Degree granted by The University of Texas at Arlington

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