Minimizing Roadway Embankment Damage from Flooding (2016) / Chapter Skim
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Pages 62-69
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60 INTRODUCTION This chapter presents a summary of the results received from the DOT engineers. Of the 50 total responses that were received, 32 made major contributions to this study.
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61 TABLE 17 SUCCESS CASE STUDIES GATHERED THROUGH THE SURVEY Agency Project Comments Arizona DOT Ideal Draw near Wilcox The wingwall and the box culvert were undermined. San Pedro on I-10 near Benson This is an example of bridge deck and roadway drainage effect during flooding.
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62 DOCUMENTS USED IN CURRENT PRACTICE Q3. Do you have hyperlinks, hard copies, and/or soft copies of the following documents?
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63 MODES OF FAILURE Q4. Please specify/rank the highway embankment failure modes that your agency has experienced.
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64 FIGURE 104 Relative importance of geologic and geomorphologic factors among states. Additional notes were included related to what factors should be largely considered in design.
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65 GEOTECHNICAL CONSIDERATIONS Q10. What is the soil type typically used to build embankments?
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66 practices were identified by three states: rock buttresses, concrete lining of slopes, and the use of fuse plugs. One state did not specify any protection measures.
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67 The source of funding was identified by 12 states as ER and FEMA funds. One state commented that the source of funding depends on whether the area is declared a "disaster area" by the governor or president.
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