New product announcements: 01/13/2010 Hard-Hat Lanyard: Keep It Close The Gear Keeper Hard Hat Lanyard is a tether designed specifically to secure a hard hat when working at height. The lanyard features 2.5-oz retraction force to take up any unused slack and prevent entanglements. It can support hart hats up to 18 oz and has a spectra-nylon line that extends up to 14 in. A snap-clip mount allows for easy attachment to any standard hard hat, and the Quick Connect System allows the hard hat to be detached without removing the lanyard’s base. Hammerhead Industries; 805-658-9922; www.gearkeeper.com Wheel Wash System:
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.