Concise encyclopedia of traffic & transportation systems by 
McGraw-Hill Encyclopedia of Science & Technology
New Penguin dictionary of civil engineering by 
Encyclopedia of bridges and tunnels by 
Dictionary of water and waste management by 
Eshbach's handbook of engineering fundamentals by 
The Civil Engineering Handbook by 
Civil engineer's reference book by 
Handbook of civil engineering calculations by Reference books, including dictionaries and encyclopaedias, are on the low shelves near the Information Desk on Level 4.
They may not be borrowed. Some are also available electronically.
AccessScience is the online version of McGraw-Hill Encyclopedia of Science & Technology. It is updated daily and includes biographies of leading scientists, weekly updates of breakthroughs and discoveries in science, a science dictionary, and links to related websites.