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Historic Roads in the National Park System


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Cover

Contents

Preface

Introduction

Early Roads

The Development of Park Roads

Teamwork/Cooperative Efforts

Evolution of Parkways

World War II and Beyond

Understanding and Managing Historic Park Roads

Bibliography





Historic Roads in the National Park System
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PART III: APPENDIXES

APPENDIX D: STANDARD ARCHITECTURAL DETAILS HEADWALLS. FOR CULVERTS

Under the direction of Tom Vint, the Division of Landscape Architecture, later known as the Branch of Plans and Design, produced standardized details for certain features along roads. The specifications on the following sheets noted:

STONES. Weathered stones are preferable. No freshly broken stones shall be exposed. Round stones are not to use used. Stones shall have wall heights of not less than 6 inches nor more than 18 inches and wall lengths of not less than 18 inches nor more than 48 inches. All stones to be laid with their larger dimension horizontal. Four joints should not come together.

ARCH RINGS. Key stone to be not less than 22 inches in height. All arch ring stones to be shaped to the approximate face dimension shown.

JOINTS. Mortar joints to be generally 1 inch to 1-1/2 inches wide, well filled and pointed to a depth of 1 inch to present a wavy plain surface.

drawing
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drawing
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