The Standard Drawings are compliant with Oregon Standard Specifications. They are intended to communicate design standards and practices to the Design Engineer. It includes three sections: Roadway … [Read more...] about Oregon Department of Transportation Standard Drawings
Temporary Concrete Barriers
Placement Guidance for Temporary Concrete Barriers in Construction Work Zones: Developed with Roadside Safety Analysis
An important design decision in construction work zones concerns the use and placement of temporary barriers. The temporary concrete safety shaped barrier is the option preferred by most state … [Read more...] about Placement Guidance for Temporary Concrete Barriers in Construction Work Zones: Developed with Roadside Safety Analysis
Top-mounted object markers for delineation of portable concrete barrier wall on highway projects or alternative devices
The Nebraska Department of Roads mounts a 12" x 24" vertical panel on top of the concrete barrier. The concrete barrier has two vertical square holes on the top of the barrier for placing a post. … [Read more...] about Top-mounted object markers for delineation of portable concrete barrier wall on highway projects or alternative devices
Temporary Movable (“Zipper”) Barrier systems in work zones
Ohio has had one project where the movable concrete barrier was used. See the given website for plan sheets with plan notes and other plan details. … [Read more...] about Temporary Movable (“Zipper”) Barrier systems in work zones
Temporary Movable (“Zipper”) Barrier systems in work zones
WSDOT owns a couple of the movable barrier systems and has used them primarily on interstate freeway HOV widening projects over the past several years. They work well in adding an additional level of … [Read more...] about Temporary Movable (“Zipper”) Barrier systems in work zones
Temporary Movable (“Zipper”) Barrier systems in work zones
Michigan has used the movable barrier wall on 4 or 5 projects in work zones. The state has used these on freeways where traffic is switched from one side of the road to the other. The zipper wall is … [Read more...] about Temporary Movable (“Zipper”) Barrier systems in work zones