Associations
- American Association of State Highway and Transportation Officials (AASHTO). Publications accredited labs, links to states.
 - American Concrete Institute, International - ACI. Technical and education society relating to concrete structures.
 - American Concrete Pavement Association. Representing the concrete pavement industry.
 - American Road and Transportation Builders Association - ARTBA. Info on advocacy for infrastructure programs. Great links to State DOT's.
 - American Society for Testing and Materials - ASTM. Consensus Standards setting organization. Order copies of standards on-line. Meetings.
 - American Society of Civil Engineers - ASCE. Professional society for civil engineers. Committee activities, publications, training.
 - Asphalt Institute - AI. Technical info, publications, training programs.
 - Deep Foundations Institute. DFI website
 - National Asphalt Pavement Association. Representing the asphalt pavement industry.
 - National Lime Association. Representing the companies producing calcium oxide.(lime).
 - National Mining Association. Trade association of the mining industry and related businesses.
 - National Ready Mix Concrete Association - NRMCA. Representing producers of ready mixed concrete.
 - Portland Cement Association - PCA. Technical publications and reports.
 - The Road Information Program - TRIP. Economic, environmental, and technical data on highway transportation issues.
 - Transportation Construction Coalition. Info to help move federal legislation for highways and bridges.
 
Engineering/Research
- Civil Engineering Research Foundation - CERF. ASCE's research foundation. Operates innovative technology centers.
 - FHWA Office of Technology Applications. FHWA's Superpave site with a directory of resources.
 - International Center for Aggregates Research. The one-stop-shop for aggregates related information. 1998 Symposium registration info.
 - National Quality Initiative - NQI. Joint government and industry activity promoting quality in highway construction. Links to 'quality' sites.
 - North Central Superpave Site. Site at Purdue University addressing regional Superpave issues and training.
 - South Central Superpave Site. University of Texas site with excellent background articles on Superpave.
 - Transportation Research Board. Highway Research information and publications.
 
Research Centers
Government
- Government Printing Office (GPO). Access to searchable databases of Budget, Bills, Code of Federal Regulations, Congressional Record, Federal Register, Public Law.
 - Environmental Protection Agency. Gateway to environmental law and regulation.
 - Metric Clearinghouse. Info on adoption of the metric system in the highway industry.
 - National Institute for Occupational Safety and Health (NIOSH)
 - USUS Army Corps of Engineers. Gateway to the Corps' sites.
 - US Department of Commerce - NOAA. Marine ESA administration, national weather service, climate research.
 - US Department of Interior - US Fish and Wildlife Service. ESA administration for land living resources.
 - US Department of Transportation. Statistical data, background info and a gateway to other related sites.
 - US Geological Survey. Minerals information and statistics.
 - USGS Front Range Infrastructure Research Project. Info on location and characteristics of natural aggregate resources for sustaining infrastructure.
 - The Library of Congress - Thomas project.
 - The US House of Representatives. Access to members and committees.
 - The US House of Representatives - Transportation and Infrastructure Committee. General committee and issue info. Access to the Surface Transportation Subcommittee.
 - The US Senate. Senator's home pages and email; committee links.
 - Searchable data bases of current legislative information.
 
International
- Federation of Master Builders BRIX - Builders Resource and Info. Exchange UK Trade Association.
 - ISEE--International Society of Explosives Engineers. Jeff Dean, Director # is 216-349-4004.
 
Publications
- Aggregates Manager Magazine. Trade publication.
 - Deep Foundations Journal. DFI Journal
 - Deep Foundations Magazine. DFI Magazine
 - Engineering News Record (ENR) Magazine. Cost indexes and good links to other construction related and government sites.
 - FW Dodge. Construction data, growth and trends.
 - Natural Aggregates - Foundation of America's Future: USGS Publication. Aggregates are a basic raw material used in agriculture, construction and processing industries.
 - Rock Products. Trade publication.
 - Pit & Quarry. Trade publication.
 
Safety and Health
- Agency for Toxic Substances and Disease Registry. Health information.
 - American Industrial Hygiene Association. Certified labs, helpful link.
 - American Society of Safety Engineers. Safety information.
 - Bureau of Labor Statistics
 - Canadian Centre for Occupational Health and Safety
 - Cornell University. Material Safety Data Sheets.
 - Mine Safety and Health Administration (MSHA). Safety, health and regulatory information.
 - National Environmental Training Association. Training.
 - National Institute for Occupational Safety and Health (NIOSH). Safety, health and research information.
 - National Institute for Occupational Safety and Health. Searchable database on mining research.
 - National Safety Council. General safety information.
 - Occupational Safety and Health Administration. Safety, health and regulatory information.
 - Occupational Safety and Health Administration. Silica advisor.
 - Pittsburgh and Spokane Research Centers. Research information specific to mining.
 - Safety and Health Online. Free online training information.