Reactions are mixed to the revamping of the model code development process announced by the International Code Council, which publishes the widely adopted International Building Code and 12 other "I" codes. The new process maintains ICC’s three-year code-development cycle but eliminates the code supplements, published 18 months after each code. "Instead of having two complete code development cycles every three years, we are moving to one," says Tom Frost, ICC’s senior vice president of technical services. ICC says the new system reduces the length of code hearings, increases participation and allows both the code development and final action hearings to
Arch dams, classically curved monoliths situated in narrow valleys, are not as common as other types of dams, such as embankment dams and gravity dams. ENR takes a look at some of the biggest arch dams in the world, both completed and under construction.