SPANS OF TIME

Table of Contents

List of Figures

Acknowledgements

Introduction

History of Oklahoma Highway Bridges

• The Earliest Roads and Bridges
• The Drive For Good Roads
• A New Era in Bridge Building
• The State Road System and Federal Aid
• The Shifting Direction of Bridge Building
• The Strains of Depression and War
• Meeting New Challenges Since WWII

The Historic Bridges of Oklahoma

• Steel Truss Bridges
• King Post Pony
• Small Pratt (3 panel) Pony
• Truss Leg Bedstead Pony
• Pratt Pony
• Pratt Half-Hip Pony
• Parker Pony
• Camel Back Pony
• Warren w/ Verticals Pony
• Warren w/ Polygonal Top Chord Pony
• Warren Bedstead Pony
• Double Intersection Warren Pony
• Pratt Through
• Modified Pratt Through
• Parker Through
• Camelback Through
• Modified Parker Through
• Warren Through
• K-Truss
• Deck Truss
• Mixed Truss
• Concrete and Stone Bridges
• Concrete Arch
• Rainbow Arch
• Stone Arch

Endnotes

Bibliography

Appendices

• Bridge Types By Decade
• Fabricators/Builders of Oklahoma Truss Bridges
• Map of NRHP-Eligible Pony Truss Bridges
• Map of NRHP-Eligible Through Truss Bridges
• Map of NRHP-Eligible Mixed & Deck Truss Bridges
• Map of NRHP-Eligible Masonry Bridges
• NRHP Eligible Bridges By Fabricator/Builder
• Key To Printout
• Tabular List Of Inventoried Bridges