Anchorless crash cushion apparatus, comprising in combination: a plurality of crash cushion elements including interconnected water-filled crash cushion elements and a forward element; a vehicle capture structure operatively associated with said forward element operable to capture a vehicle frontally impacting the forward element, adapted to resist upward tilting of the impacting vehicle and substantially prevent ramping of the impacting vehicle over the forward element, the vehicle capture structure comprising a metal nose cap located at a front end of the forward element; a stabilizing structure operatively associated with said plurality of crash cushion elements to resist relative rotation therebetween in both vertical and lateral planes during vehicle impact, the stabilizing structure comprising structural straps along both sides of the crash cushion elements and provided with connections between said two sides which extend through said crash cushion elements; and a transition weldment for attaching the anchorless crash cushion apparatus to a rigid hazard object, said transition weldment when attached to said rigid hazard object providing additional crush for heavy vehicles that bottom out, wherein said transition weldment includes a weldment housing including spaced sidewalls having a sidewall top and a sidewall bottom and a front plate welded only at the top and bottom thereof, allowing said side walls of the weldment housing to collapse when impacted from the front along the centerline of the anchorless crash cushion apparatus, and wherein said front plate defines a notch that conforms to the shape of and receives the element back of an endmost crash cushion element of said crash cushion apparatus for providing rigidity in angled vehicle impacts and reduce pocketing of the anchorless crash cushion apparatus. a plurality of crash cushion elements including interconnected water-filled crash cushion elements and a forward element; a vehicle capture structure operatively associated with said forward element operable to capture a vehicle frontally impacting the forward element, adapted to resist upward tilting of the impacting vehicle and substantially prevent ramping of the impacting vehicle over the forward element, the vehicle capture structure comprising a metal nose cap located at a front end of the forward element; a stabilizing structure operatively associated with said plurality of crash cushion elements to resist relative rotation therebetween in both vertical and lateral planes during vehicle impact, the stabilizing structure comprising structural straps along both sides of the crash cushion elements and provided with connections between said two sides which extend through said crash cushion elements; and a transition weldment for attaching the anchorless crash cushion apparatus to a rigid hazard object, said transition weldment when attached to said rigid hazard object providing additional crush for heavy vehicles that bottom out, wherein said transition weldment includes a weldment housing including spaced sidewalls having a sidewall top and a sidewall bottom and a front plate welded only at the top and bottom thereof, allowing said side walls of the weldment housing to collapse when impacted from the front along the centerline of the anchorless crash cushion apparatus, and wherein said front plate defines a notch that conforms to the shape of and receives the element back of an endmost crash cushion element of said crash cushion apparatus for providing rigidity in angled vehicle impacts and reduce pocketing of the anchorless crash cushion apparatus.