NV172 realignment at Hoover Dam.
The concrete bridge structure in the foreground has cut off a corner on the old cliff-edge road. The old corner has been pedestrianised with visitor centre access.
Construction of the eastern tie-in for Boulder City Bypass.
This is the westbound off-slip at the junction. Prior to late 2017, the main-line carried on straight ahead to Boulder City, along the Boulder City Parkway (this being the terminus of the Hoover Dam bypass). This was a conventional diamond junction and allowed access along the old US-93 (now NV-172) to the Hoover Dam and to Goldstrike Canyon.
The Boulder bypass works saw a new motorway constructed to the south of the city, with the main line of the US-93 being diverted onto the new road. A westbound free-flow sliproad was added to allow direct access to the Boulder City Parkway - the bridge in this photograph (orientated looking north) is being constructed in this photograph.
NV172 (former US-93) Hoover Dam Access Road heading east
Power infrastructure on NV172 Hoover Dam Road
The Mike O'Callaghan - Pat Tillman Memorial Bridge from the NV172