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1 - 2 of 2 resultsSearch results for "roadside ditches"
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2009
2009
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Guidelines for Guardrail Implementation (2009)
National Academies of Sciences, Engineering, and Medicine; Transportation Research Board; National Cooperative Highway Research Program
Performance-Based Contracting for Maintenance (2009)
National Academies of Sciences, Engineering, and Medicine; Transportation Research Board; National Cooperative Highway Research Program; National Cooperative Highway Research Program Synthesis Program
Transportation and Infrastructure