The Department of Energy National Nuclear Security Administration’s (DOE/NNSA) Los Alamos Field Office has issued a Floodplain Assessment for the Technical Area 72 Outdoor Live Fire Range Gate Installation Project for a 15-day public review and comment period beginning with publication of this notice.
DOE/NNSA is proposing new construction in lower Sandia Canyon at TA-72 at the Outdoor Live Fire Range facility at Los Alamos National Laboratory (LANL). The proposed upgrades are intended to improve range safety.
The project activities within the 100-year floodplain include:
- Installation of three gates at the all-terrain vehicle/pedestrian walkway bridges; and
- Replacement of the main entrance gate to the range with a permanent gate. These four gates will be used to control vehicle access to individual firing ranges and add a visual aid to deter pedestrians from walking into individual firing ranges. The three proposed gates at the all-terrain vehicle/pedestrian bridges will be approximately 10 feet in length and four feet in height made of steel tubing (e.g., agricultural/farm style gates). Each gate will be mounted on one side to an approximately -four-inch diameter, five-foot tall metal pole set in a base of concrete.
After the close of the public comment period Oct. 8, and prior to issuing a Floodplain Statement of Findings DOE/NNSA will reevaluate the alternatives to the proposed action in a floodplain, identify mitigation measures that would avoid or minimize impacts to the floodplain and take into account all substantive comments received during the public comment period.
The Floodplain Assessment can be accessed online.