I will publish links over time to some pages that I hope you can find helpful.
Civil Engineering Crossing is a great site for job postings in civil engineering.
The FEMA Flood Map Service Portal – Useful for determining if property is in the floodplain.
The Manual on Uniform Traffic Devices (MUTCD) from the FHWA is the law when it comes to road signs. It explains everything from what signs to use, sizes, where they should be placed, and even the lettering.
The National Highway Institute (NHI) has tons of courses and webinars for engineers. Most of these courses have Professional Development Hours (PDH’s) that can be used to satisfy the continuing education requirements for professional engineers.
The United States Geological Survey (USGS) Nationwide Map Viewer is useful for finding topographic information.
Streamstats from USGS is a tool that is used to determine watershed and drainage basins. This program can figure flow, velocities, drainage area, along with other information.
The Federal Railroad Administration Office of Safety Analysis has a site for looking up railroad crossings. This can be helpful when filling out forms for safety improvements at railroad crossings.
Sites Specific For Illinois:
The Illinois Department of Transportation has tons of information and links for those wanting to do construction with the State of Illinois, what rules and regulations are in effect, winter driving conditions, and much more.
The Illinois Commerce Commission has a grade crossing search that has information that is useful when applying for grade crossing safety upgrades such as flashing lights and gates.
The Illinois Association of County Engineers (IACE) has a listing of all the county engineers in the state of Illinois.
Average Daily Traffic (ADT) of roads and streets in Illinois. Average Daily Truck Traffic (ADTT) is also available on State routes.
The Wetlands Mapper from the US Fish and Wildlife service is useful for determining the location and types of wetlands. This is helpful when filling out environmental impact statements.