A policy on landscape development for the national system of interstate and defense highways, 1961, Volume 2
American Association of State Highway Officials, 1961 - Architecture - 39 pages
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Borrow Pits and Ponds
CONTENTS Continued Page
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AASHO areas of cut borrow pits Conservation of Landscape construction control erosion crash barriers cut and fill deciduous Defense Highways Desirable trees different levels divided freeway divided highway drainage channels drainageways edges of pavements embankments erosion control existing growth existing trees existing woodland feasible figure 14 fill slopes fixed width frontage roads grade separations grading plans groundcover planting guide traffic headlight glare humid regions independent roadways intercepting channels Interstate and Defense Interstate highway Interstate System landscape architectural landscape development landscape features location and design median of variable natural features paving planting clearances planting design planting of trees planting plans pond preserved protection against erosion residential retaining wall riprap roadside areas roadside borders roadways at different safety rest areas shade trees shows a divided sight distance structures System of Interstate topography traffic lanes traffic rotary trees and shrubs turf cover typical planting variable width wide median width of right-of-way woody groundcover