BRIDGES

General Bridge & Bridge Construction Resources

• Bridge Construction and Engineering Home (Bridgepros)
• Bridge Engineering Page (Mark Ketchum)
• Bridges (Dave Denenberg)
• Bridges (Portland Cement Association)
• Digital Bridges - Bridges of the Nineteenth Century (LeHigh Universities)
• Factophile.com : Science & Technology : Major Bridges
• Godden Structural Engineering Slide Library (UC Berkeley EERC)
• Leonhardt, Andra & Partners Structures Slide Library (UC Berkeley NISEE)
• Inventory of U. S. Suspension Bridges (Dave Denenberg)
• National Concrete Bridge Council - Bridge Types
• Roebling's Online History Archive (suspension bridges)
• U.S. Bridges – AASHTO

• Bridgeport Covered Bridge (Nevada County)
• Bridging the Bay - Antioch (UC Berkeley Library)
• Bridging the Bay - Dumbarton (UC Berkeley Library)
• Bridging the Bay - Richmond-San Rafael (UC Berkeley Library)
• District 4 Toll Bridges
  
• Highway Bridges, A Fusion of Art and Function : A Northern California Sampler (Living Gold Press)
• Historic Bridges in Butte, Nevada and Yuba Counties, California
  
• Historic Drawbridges of the Delta
• History of "No Hands Bridge" (El Dorado County)
• San Francisco Bay Crossings

• Bridging the Bay - Carquinez (UC Berkeley Library)
• Mark Ketchum's Carquinez Strait Bridge Page
• New Carquinez Bridge (District 4)

• Associated Oil Company's Bridge Construction Folios (Golden Gate and SFOBB Construction) - 1934-1936 (SF Museum)
• Bridging the Bay - Golden Gate (UC Berkeley Library)
• Golden Gate Bridge Bond Issue Goes to the Voters - 1930
• Golden Gate Bridge, Highway and Transportation District
• Golden Gate Bridge Historic Photos
• Golden Gate Suspension Bridge (BridgePros)

• Associated Oil Company's Bridge Construction Folios (Golden Gate and SFOBB Construction) - 1934-1936 (Virtual Museum of the City of San Francisco)
• Bay Bridge design (The Gate) - new east span
• Bay Bridge Construction Halted by "Bloody Thursday" Riots - 1934 (Virtual Museum of the City of San Francisco)
• Bridging the Bay - San Francisco-Oakland Bay (UC Berkeley Library)
• District 4 Toll Seismic and New Bridge Projects
• San Francisco-Oakland Bay Bridge - Construction Photographs, 1931-1936 (OAC Finding Aid - Bancroft Library)
• San Francisco-Oakland Bay Bridge (MTC ABAG Library)

Tower Bridge

• Tower Bridge - HABS-HAER pictures from the Library of Congress
• Tower Bridge History (Joel Windmiller)

• LA Bridges (Los Angeles Almanac)
• Vincent Thomas Bridge (Los Angeles Almanac)

• Bixby Creek Bridge (Monterey County Historical Society)
• Bixby Creek Bridge (Pat Hathaway)

• Bridges Span Santa Cruz's Past (Ross Gibson)
• Covered Bridges (John Young)
• Santa Cruz City Public Works - includes Laurel Street, Soquel Avenue & Water Street Bridges

• California Historic Bridge Inventory
• California Local Agency Bridge List
• California Log of Bridges on State Highways
• Caltrans Toll Bridge Program
• Structure Maintenance & Investigations (Intranet)
• Structure Maintenance & Investigations Home Page

top

CALTRANS HISTORY

• Caltrans Fact Sheet - Important Events in Caltrans History
• Caltrans Fact Sheet - Botts' Dots
• California Highways & Public Works Index, 1937-1967
• California Highways & Public Works Photograph Index, 1937-1967
• Caltrans History Preservation Committee

District History Pages

• District 9 History

HIGHWAY SIGNS & SHIELDS

• California Guide Signs (David Kriske)
• California Traffic Signs (Brian Smith)
• Highway Route Markers (James Lin)
• Maneri Sign Company
• Manual of Traffic Signs (Richard C. Moeur)
• Open Directory - Recreation : Roads and Highways : Highway Signs

top

HIGHWAYS - CALIFORNIA

General

• 2008 Named Freeways, Highways, Structures and Other Appurtenances In California
• California Highways (Dan Faigin)
• In Our Path : Introduction (Jeff Gates)
• State Highway Routes (Casey Cooper)
• State Highways Route Numbering - 1934
• The Highwayman (Joel Windmiller)

Northern California

• California Highways : Links to California Road History
• The California Gold Country : Highway 49 Revisited
• Interstate "Indigestion" 238 (Casey Cooper)

Southern California

• California Highways : Southern California Freeway Development - Part I
• California Highways : Southern California Freeway Development - Part II
• California Highways : Southern California Freeway Development - Part III
• District 8 Route Concept Reports (Intranet)
• Freeway Interchanges Around the Los Angeles Area (Mike Ballard)
• Highway 56 (Casey Cooper)
• Highway 252 (Deceased) (Casey Cooper)
• Historical Highways of Central and Southern California (Mike Ballard)
• Historic Photos of San Diego Highways (Mark Furqueron)
• Mountain Springs (Mountain Springs Grade) (The Journal of San Diego History)
• Past Highway Names in Los Angeles County
• Pictorial Guide to the Los Angeles Area Highways (Mike Ballard)
• Racetrack to Highway : San Diego's Early Automobile Days (The Journal of San Diego History)

El Camino Real

• California Highways : El Camino Real
• El Camino Real (Historical Marker Database)

Plank Road

• Old Plank Road : Imperial San Dunes (DesertUSA.com)
• The Plank Road (The Journal of San Diego History)

Ridge Route

• Ridge Route (Ridge Route Preservation Organization)
• Santa Clarita Valley History In Pictures - Ridge Route (SCV Historical Society)
• Virtual Tour of the Ridge Route (Mike Ballard)

top

HIGHWAYS - U. S.

General

• Evolution of the US Highway System in the Midwest (Michigan State University)
• From Names to Numbers : the Origins of the U.S. Numbered Highway System (FHWA)
• Federal Road Act of 1916 : Building the Foundation (FHWA)
• Highway History Bibliography (FHWA)
• Historic California US Highways (Casey Cooper)
• Open Directory - Recreation : Roads and Highways - Historic
• Public Roads Magazine - Vol. 1, No. 1 (1918)
• Public Roads Magazine - "For the Common Good : The 85th Anniversary of a Historic Partnership" (founding of AASHO)
• U.S. Highways: From US 1 to (US 830) (Robert V. Droz)

Good Roads Movement

• Good Roads to Tourism (Oregon State Archives)
• Making of America - "digital library of primary sources"
• Making of America Journal Articles Collection (Overland Monthly and Out West Magazine)

US 40

• National Old Trails Road : Part I : The Quest for a National Road (FHWA)
• National Old Trails Road : Part II : See America First in 1915 (FHWA)
• National Road Association of Illinois
• History of the Lincoln Highway : From Dirt Path to Concrete Highway

Lincoln Highway - General

• Lincoln Highway (FHWA)
• Lincoln Highway Digital Image Collection (University of Michigan Library )
• Lincoln Highway (James Lin)
• Mohawk-Hobbs Elevation Guide - Lincoln Highway (Sacramento - San Francisco via Vallejo)

Lincoln Highway - California

• Lincoln Highway Association - California Chapter
• Lincoln Highway - California (James Lin)
• US Highway 40 - The Lincoln Highway (Casey Cooper)

US 50

• California Highways : US Highway 50
• Coast to Coast on US Highway 50 : A Brief History of America's Backbone (Alvin Edlund, Jr.)

Route 66

• National Historic Route 66 Federation
• New Mexico Route 66 Association
• Oklahoma Route 66 Association
• Route 66 - California Mojave Desert

U S 99

• Historical Tour of US 99 - Introduction (Mike Ballard)
• Historic US 99 (Casey Cooper)

Interstates

• 3-Digit Interstates (Scott Oglesby)
• Building the Interstate (FHWA)
• California Celebrates 50 Years of the Interstate Highway System (Caltrans)
• California Highways : Interstate Highway Types and the History of California's Interstates
• California Highways : Interstate 80
• Creating the Interstate System - Federal-Aid Highway Act of 1956 (Public Roads On-line - FHWA)
• Highway History (FHWA)
• Interstate 480 Freeway Plan (David Kriske)
• Origins of the Interstate (FHWA)
• Public Roads On-Line (Summer 1996) - Index
• Route Log & Finder List - Interstate Highway System (FHWA)
• Utah Highways Pages - Nationwide Interstate Links (Daniel Stober)

top

MAPS & GEOGRAPHIC PLACE NAMES

• California County Maps 1850 - present (California Association of Counties)
• California Maps (University of Texas Libraries) - includes 1917 city maps
• Date Codes for Maps (Western Association of Map Libraries)
• David Rumsey Historical Map Collection
• Map Collections Home Page (Library of Congress)
• Panoramic Maps Collection, 1847-1929 (Library of Congress)
• Railroad Maps Collection, 1828-1900 (Library of Congress)
• San Francisco Historical Maps

top

PAVEMENT & PAVING

• Asphalt History FAQs (Asphalt Institute)
• Concrete Pavement (Portland Cement Association)
• Evolution of the U. S. Pavement Marking System (Texas Transportation Institute)
• History of Asphalt (beyondRoads.com)
• History of Concrete (Dee Concrete)
• History of Paving (Mirage Paving)
• John Knapton's Pictorial Guide to Paving Through the Ages
• Pavement History - Highways (Portland Cement Association)

top

PHOTOGRAPHS

• Built in America - HABS/HAER Collections (Library of Congress)
• California State Library Picture Catalog
• Calisphere - Primary Source Images
• Caltrans Photo Library (Intranet)
• FEMA Photo Library - searchable by keyword & state
• Guide to the Photo Collections of the San Diego Historical Society (The Journal of San Diego History)
• Historic Photos of San Diego-area Highways (Mark Furqueron)
• Images of Our Past : The San Diego Title Insurance and Trust Company Historical Photographs Collection (The Journal of San Diego History)
• Sacramento History Online
• Santa Clarita Valley History In Pictures (Santa Clarita Historical Society
• Santa Monica Public Library - Image Archives

top

TRANSPORTATION HISTORY

General

• Articles and Links about Roads and Transportation (Scott Kozel)
• How the Wheels Got Turning : A Historical Perspective on American Roads (About.com : Inventors)
• Women's History in Transportation (FHWA)

Automobiles

• California Department of Motor Vehicles Milestones
• Early Adventures With the Automobile (Eyewitness to History.com)
• Los Angeles' First Automobile

Engineering

• 150 Years of Civil Engineering (ASCE)
• Geotechnical Research Report (FHWA)
• History and Heritage of Civil Engineering (ASCE)
• The Civil Engineering Portal - Transportation Engineering - Highway Engineering

Equipment

• Historical Construction Equipment Association
• Roebling's Wire and Wire Products

Rail & Transit

• California Zephyr Virtual Museum
• Electric Railway Historical Association of Southern California
• Los Angeles Transit History (Dorothy Peyton Grey Transportation Library)
• Rebuilding the California Southern Railroad : The Personal Account of a Chinese Labor Contractor, 1884 (The Journal of San Diego History)
• San Diego's Cable Railway (The Journal of San Diego History)
• San Diego's First Railroad (The Journal of San Diego History)
• The First Days of the Municipal Railway (SF MUNI)
• Transit in San Diego: ASCE Anniversary Project (The Journal of San Diego History)

Trucks

• American Truck Historical Society

Publications

• Public Roads On-Line - Past Issues (1993-2008)
• TRB Publications Index (1923-2008)
• Westways - Auto Club of Southern California -Back Issues (1999- ) [may need to enter zip code 90007]

top

U.S. & STATE DOT HISTORY WEB SITES

• Connecticut DOT 100-Year History
• FHWA Historic Preservation and Archaeology Program
• Iowa DOT History (pdf)
• Michigan Highways - Historical Overview (unofficial site)
• Minnesota DOT History
• Nebraska Department of Roads - History
• New York State DOT History
• North Carolina DOT History
• Oregon DOT History Center
• Oregon DOT Museum
• Wisconsin Highways - Historical Overview (unofficial site)
• US DOT Office of the Historian

top