A barrier wall has a first vertical support and a second vertical support. A first wall panel is disposed between the first vertical support and second vertical support. A second wall panel is disposed between the first vertical support and second vertical support over the first wall panel. An I-beam is disposed between the first wall panel and second wall panel. The I-beam includes a first flange and second flange extending into the first wall panel and second wall panel. A cable is disposed between the first wall panel and second wall panel. The I-beam includes a ridge around the cable. A grounding cable is attached to the I-beam. The first wall panel includes a first channel extending for a length of the first wall panel. A first sound absorbing material strip is disposed in the first channel. A traffic barrier is disposed under the first wall panel.

An example barrier connection system comprises at least one pair of connectors, each connector including a mounting section for attachment to a barrier, the mounting section having inner and outer faces, and first and second connector elements at respective sides of the mounting section. In one example, the first connector element comprises an inwardly extending flange that is spaced from the inner face of the mounting section to at least partially define a recess there between. The second connector element comprises an outwardly extending flange. The inwardly and outwardly extending flanges are dimensioned and orientated such that, in use, the outwardly extending flange of each connector is receivable within the recess of the other connector.

A method of slip forming a concrete structure can include using a first slip form mold that travels along a path to form a portion of a concrete structure by delivering a first flow of concrete into the first mold through a first hopper. The first hopper can be configured to receive the first flow of concrete. The portion of the concrete structure can be modified using a second slip form mold different from the first mold by advancing the second mold along the concrete structure and, while advancing the second mold, delivering a second flow of concrete into the second mold through a second hopper that is configured to receive the second flow of concrete.

Systems and methods for the continuous slip form construction of concrete barriers over support cages. A tube feeder of a slip form construction system can include angled tubes that can direct reinforcing bars into a concrete barrier and also provide space between the tubes for insertion of a support cage through the system and into the concrete barrier.

A K rail end cap is fixed to ends of the K rails to repair chipped K rails or protect the ends of undamaged K rails. The caps are preferably a plastic material or the like, are between 0.093 inches and 0.125 inches thick, and about 9 inches deep. The caps slip over the top, sides, and bottom of the K rail ends, and may be glued in place. An opening in the face of the caps exposes metal loops at each end of the K rails to allow connection of consecutive K rails after the caps are attached.

A system and a method for sawing control joints in concrete barriers is provided. The system includes a barrier mounting frame slidably mountable about the barrier, on the top, first and second lateral faces of the barrier. The system also includes a saw attachment having a circular saw attached thereto, the circular saw being manually operable. A linkage assembly connects the frame mounting barrier to the saw attachment, and allows to manually move the circular saw up or down, and towards or away from the barrier, when in use, to create the control joint transversally along the top, first and second lateral faces of the barrier.

A method for using barrier systems includes positioning a plurality of barrier systems at a location, each barrier system having: a barrier having an interior surface and an opposing exterior surface, the interior surface bounding a chamber that is adapted to receive a ballast; and a light assembly secured to the barrier, the light assembly comprising a housing having a lens that at least partially bounds a compartment, a light source at least partially disposed within the compartment, and programmable circuity in electrical communication with the light emitting device. A control device is used to communicate wirelessly with programmable circuity of each barrier system after the barrier systems are positioned at the location so that data is transferred between the control device and the programmable circuity of each barrier system.

A system and method for treating liquid runoff from bridge decks or other types of roadways are provided. The system includes vertical scuppers positioned at low points along a length of a bridge deck. Each scupper has a removable tube fitted inside the scupper with a filtration media for treating liquid runoff such as stormwater. During rainfall events, liquid runoff gravity flows downward through the tubes and the filtration media inside the tubes so that the liquid is treated before being discharged to the environment. The tubes can be removed to periodically replace the filtration media.

A traffic barrier and soundwall system is disclosed having wide-flanged [or h-posts] vertical posts oriented with a flange facing a roadway. Traffic barriers are located between them. The barriers have recesses at the intersection of their backs and ends. Sound panels are stacked on top of the traffic barriers. A crash panel is located between the vertical posts, above one or more sound panels. The crash panels have recesses at the intersection of their backs and ends. Additional sound panels are stacked above the crash panels. An angle bracket is located in the recess. U-shaped connectors connect the recesses of adjacent traffic barriers together around a post. U-shaped connectors connect the recesses of adjacent crash panels together around a post, and above the traffic barriers and sound panels to achieve a MASH TL-4 crash test rating.

Various embodiments of an adjustable mold and method for making precast concrete traffic barrier panels with different geometries are disclosed. The panels are used for creating a continuous traffic barrier by placing the panels in a contiguous side-by-side arrangement adjacent a roadway atop a modular earth retaining wall. Each traffic barrier panel has a body with at least front, back, top, bottom, left, and right sides. The mold body has a plurality of walls that define an interior chamber, a door opening to the interior chamber, and a concrete inlet to the interior chamber. The door is designed to be installed on and to be uninstalled from the mold body to respectively close and open the door opening. The door has left side and right side forming panels that are designed to define respectively a left side two-dimensional geometry and a right side two-dimensional geometry of the left and right sides respectively of a traffic barrier panel to be made. The left side and right side two-dimensional geometries are changeable by interchanging the door with differently oriented forming panels or by adjusting two-dimensional orientations of each of the left side and right side forming panels on the existing door. The interior chamber of the mold body in combination with an interior side of the door define an outer surface geometry of the front, back, top, bottom, left, and right sides of the traffic barrier panel to be made.