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Table of Contents

List of Figures

Acknowledgements

Introduction

History of Oklahoma Highway Bridges

The Historic Bridges of Oklahoma

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


Bridge Types By Decade

Some discrepancy in dates may be observed in the chart.  This occurs when a bridge type associated with an earlier period, such as a pinned pony truss, appears to be built at a much later date.  ODOT records sometimes shows a relocation date rather than a date of original manufacture.  Research determined the construction date of some relocated spans and that information is reflected in the chart.



Pony Trusses
Bridge Types 1890-1899 1900-1909 1910-1919 1920-1929 1930-1939 1940-1949 1950+ TOTAL
Pratt   16 41 36 24 11 5 133
Pratt Half-Hip   15 42 34 22 9 7 129
Warren w/verticals   32 137 212 107 65 11 564
Warren w/polygonal top chord   2 8   2 2   14
Double Intersection Warren   1           1
Parker     3   2 1   6
Camel Back     5 23 102 34 9 173
King Post       1       1
Pratt, small 3-panel   9 11 9 4 2   35
Truss leg bedstead   11 23 14 10 3 1 62
Warren bedstead     8 1 2 1   12
Other, Pony     1 1       2
Subtotal   86 279 331 275 128 33 1132

Through Trusses
Bridge Types 1890-1899 1900-1909 1910-1919 1920-1929 1930-1939 1940-1949 1950+ TOTAL
Pratt   11 27 29 15 5   87
Pratt, modified     1 23 12 7 2 45
Parker, modified       2 1 2   5
Warren 1             1
Warren w/verticals           1   1
Double Intersection Warren     2         2
K-Truss         19 5 2 26
Parker   4 14 12 8 8 2 48
Camel Back   1           1
Subdivided Warren   1           1
Subtotal 1 17 44 66 55 28 6 217

Deck and Mixed Trusses
Bridge Types 1890-1899 1900-1909 1910-1919 1920-1929 1930-1939 1940-1949 1950+ TOTAL
Deck Trusses       2 5 1 1 9
Mixed Trusses   7 8 15 28 15 13 86

Masonary
Bridge Types 1890-1899 1900-1909 1910-1919 1920-1929 1930-1939 1940-1949 1950+ TOTAL
Concrete Arch   2 28 21 29 9 2 91
Rainbow Arch     1         1
Other, concrete     1   1     2
Stone Arch     5 1 9 1 1 17
Subtotal   2 35 22 39 10 3 111

  1890-1899 1900-1909 1910-1919 1920-1929 1930-1939 1940-1949 1950+ TOTAL
Grand Total 1 112 366 436 402 182 56 1555


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