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
Delineators
Top-mounted object markers for delineation of portable concrete barrier wall on highway projects or alternative devices
Montana uses a top-mounted delineator that is 108mm wide by 89mm tall, using the recommended manufacturer specifications for an adhesive to fasten these to the top of the rail every 9.15 meters. … [Read more...] about Top-mounted object markers for delineation of portable concrete barrier wall on highway projects or alternative devices
Use of “Saddle drums”/“Saddlemarker”
Illinois DOT used "Saddlemarker" devices as a part of a major freeway reconstruction project on I-270 northeast of the St. Louis metropolitan area. On this project, the devices were placed at 250' … [Read more...] about Use of “Saddle drums”/“Saddlemarker”
Top-mounted object markers for delineation of portable concrete barrier wall on highway projects or alternative devices
Washington state has no requirement to put reflectors on permanent barrier. The state does, however, require them on any temp barrier 6" down on the face. A variety of manufactureres are approved. … [Read more...] about Top-mounted object markers for delineation of portable concrete barrier wall on highway projects or alternative devices
Top-mounted object markers for delineation of portable concrete barrier wall on highway projects or alternative devices
Alabama requires a small, flexible plastic substrate marker mounted on the top of concrete barrier in construction work zones. These plastic markers are covered with silver Type III reflective … [Read more...] about Top-mounted object markers for delineation of portable concrete barrier wall on highway projects or alternative devices