Abstract: A modular-type expansion joint system for bridging a gap that is located between spaced-apart structural members. The expansion joint system may be utilized, for example, in bridges, highways, and tunnel constructions where gaps are formed between spaced-apart, adjacent concrete sections. The expansion joint system includes vehicular load bearing members and support members. Seals are located between the vehicular load bearing members. The expansion joint system includes zones of differing movement capabilities in response to displacement events.

Abstract: A gate barrier which includes a first post, a drive shaft and a driven shaft revolvably supported on the first post at different elevations, a second post disposed in parallel to the first post, the second post having at least one angled holder plate, and a folding collapsible barrier having a fixed end fixedly connected to the drive shaft and the driven shaft and a free end for resting on the at least one holder plate at the second post, the folding collapsible barrier being extended out when lowered with its free end rested on the at least one angled holder plate at the second post, the folding collapsible barrier being collapsed when lifted from the second post to a vertical position in vertical alignment with the first post.