General

AASHTO - http://www.aashto.org

AISC - http://www.aisc.org/

ASTM - http://www.astm.com

American Iron and Steel Institute - http://www.steel.org

Corrugated Steel Pipe Institute - http://www.cspi.ca

American Society of Civil Engineers - http://www.asce.org

American Council of Engineering Companies - http://www.acec.org

Federal Highway Administration (FHWA) - http://www.fhwa.dot.gov

FHWA Culvert - www.fhwa.dot.gov

FHWA Inspection - http://www.fhwa.dot.gov

U.S. Department of Transportation - http://www.dot.gov

National Association of Counties - http://www.naco.org

Short Span Bridge Alliance - http://www.shortspansteelbridges.org

Steel Recycling Institute - http://www.recycle-steel.org

Transportation Research Board - http://www.trb.org

Industry Publications

Better Roads - http://www.betterroads.com

CE News - http://www.cenews.com

Public Works - http://www.pwmag.com

Civil Engineering - http://pubs.asce.org/magazines/CEMag

Roads & Bridges - http://www.roadsbridges.com

Storm Water Solutions - http://www.estormwater.com

Stormwater - http://www.stormh2o.com

DOTs By State

Alabama DOT - http://www.dot.state.al.us

Alaska DOT - http://www.dot.state.ak.us

Arizona DOT - http://www.azdot.gov

Arkansas State Highway and Transportation Department - http://www.arkansashighways.com

California DOT - http://www.dot.ca.gov

Colorado DOT - http://www.dot.state.co.us

Connecticut DOT - http://www.ct.gov/dot/site/default.asp

Delaware DOT - http://www.deldot.gov

Florida DOT - http://www.dot.state.fl.us

Georgia DOT - http://www.dot.state.ga.us/Pages/default.aspx

Hawaii DOT - http://hawaii.gov/dot

Idaho Transportation Department - http://itd.idaho.gov

Illinois DOT - http://www.dot.state.il.us

Indiana DOT - http://www.in.gov/indot

Iowa DOT - http://www.iowadot.gov

Kansas DOT - http://www.ksdot.org

Kentucky Transportation Cabinet - http://transportation.ky.gov

Louisiana Department of Transportation and Development - http://www.dotd.louisiana.gov

Maine DOT - http://www.maine.gov/mdot

Maryland DOT - http://www.e-mdot.com

Massachusetts Highway Department - http://www.mhd.state.ma.us

Michigan DOT - http://www.michigan.gov/mdot

Minnesota DOT - http://www.dot.state.mn.us

Mississippi DOT - http://www.gomdot.com/Home/Home.aspx

Missouri DOT - http://www.modot.mo.gov

Montana DOT - http://www.mdt.mt.gov

Nebraska Department of Roads - http://www.dor.state.ne.us

Nevada DOT - http://www.nevadadot.com

New Hampshire DOT - http://www.nh.gov/dot/index.htm

New Jersey DOT - http://www.state.nj.us/transportation

New Mexico DOT - http://www.nmshtd.state.nm.us

New York DOT - https://www.nysdot.gov/index

North Carolina DOT - http://www.ncdot.org

North Dakota DOT - http://www.dot.nd.gov

Ohio DOT - http://www.dot.state.oh.us/Pages/Home.aspx

Oklahoma DOT - http://www.okladot.state.ok.us

Oregon DOT - http://www.oregon.gov/ODOT

Pennsylvania DOT - http://www.dot.state.pa.us

Rhode Island DOT - http://www.dot.state.ri.us

South Carolina DOT - http://www.dot.state.sc.us

South Dakota DOT - http://www.sddot.com

Tennessee DOT - http://www.tdot.state.tn.us

Texas DOT - http://www.txdot.gov

Utah DOT - http://www.udot.utah.gov/main/f?p=100:1:0::NO::T,V:1%2C

Vermont Agency of Transportation - http://www.aot.state.vt.us

Virginia DOT - http://virginiadot.org/default_noflash.asp

Washington DOT - http://www.wsdot.wa.gov

West Virginia DOT - http://www.wvdot.com

Wisconsin DOT - http://www.dot.wisconsin.gov

Wyoming DOT - http://dot.state.wy.us/wydot

Member Companies

Advanced Coil Industries

AK Steel - http://www.aksteel.com

Armco Staco

Armtec - http://www.armtec.com

Armtec Limited - http://www.armtec.com

Big R Bridge - http://www.bigrbridge.com

CONTECH Construction Products - http://www.contech-cpi.com/default.aspx

Corpacero - http://www.corpacero.com/

Dub Ross Co. - http://www.dubross.com

Edwards Culvert

Formet

FSI/Canada Culvert - http://www.canadaculvert.com

Hamilton Kent - http://www.hamiltonkent.com

Hawaii Concrete Product

Heidtman Steel - http://www.heidtman.com

Illowa Culvert & Supply Co. - http://www.illowaculvert.com

Ironside Design Manufacturing - http://www.idmi.ca

J&J Drainage Products - http://www.jjdrainage.com

J&J Metal Products

Jennmar Specialty Products - http://www.jennmarspecialty.com

Jensen Bridge & Supply Co. - http://www.jensenbridge.com

Johnston Fargo Culvert - http://www.johnstonculvert.com/johnston.htm

Lane Enterprises - http://www.lane-enterprises.com

LMP Steel & Wire - http://www.nucor-lmp.com

Markham Culvert - http://www.markham.com.pg/Culverts/homepage.html

Metal Culverts, Inc. - http://www.metalculverts.com

Owens Corning/Trumbull Asphalt - http://www.owenscorning.com/http://www.owenscorning.com/trumbull/

Pacific Corregated Pipe Co. - http://www.pcpipe.com

Pacific Roller Die - http://www.prdcompany.com

Precoat Metals/US Coaters - http://www.precoat.com/index.html

Roscoe Culvert - http://www.roscoeculvert.com

Severstal North America - http://www.severstalna.com

Southeast Culvert - http://www.southeastculvert.com

The Dow Chemical Company - http://www.dow.com

Titan Construction Products - http://www.titanbuilt.com

Tubosider - http://www.tubosider.co.uk

USS POSCO Industries - http://www.uss-posco.com

ViaCon AB - http://www.viacon.se/

Worthington Steel - http://www.worthingtonindustries.com

Wyatt Resources - http://www.wyattresources.com