COMPREHENSIVE TACTICAL INFRASTRUCTURE MAINTENANCE AND REPAIR, AREA 2

  • WO3774, Monument Hill,
  • WO 3509
  • AJO wash 3 Fence Erosion 06082015 (1)-gps
  • AJO wash 3 Fence Erosion 06082015 (8)-gps
  • Client: US Department of Homeland Security
  • Location: 247 Miles of Arizona / Mexico Border
  • Date: 2014-2016
  • Contract #: HSBP1011-C-00042
  • Value: $9,335,783

As a subcontractor to KBR, Cerrudo is self-performing all fence and gate maintenance and repairs, road maintenance and construction, drainage and grate maintenance, debris removal and disposal, electrical and vegetation removal and disposal tasks in the Tucson Sector of the US-Mexico Border, encompassing activities along 247 miles of the remote border.  Each category of work are classified as Routine Work and Urgent Work.

Cerrudo has four crews responsible for above and below grade fence, gate and grate repairs, roadway maintenance including blading, grading, drainage, structure clearing and silt removal, culvert replacement, electrical service calls, line, pole and transformer replacement and vegetation control and debris removal.

Fence maintenance and repairs consists of repairing breaches to the multiple fence types along the border.  Fence types range from steel bollard, post and rail, wire mesh, Normandy style barriers, and legacy fence types.  Repairs to the fence involve steel and concrete work.  Concrete work includes foundation repairs and improvement modifications to install additional swing and lift gates for drainage.

Routine roadway work includes surface blading of roadways, ditches and embankments, roadway and pothole repairs, shoulder maintenance, tree removal and ditch cleaning and shaping.  Surface blading preserves the existing cross sections with surface irregularities eliminated and the surface left in a free-draining state.  On aggregate surface roads, where displaced aggregate cannot be recovered, surface course material is imported to bring the roadway back to the existing cross section of the adjacent undamaged segment.  Where needed the work includes adjusting low water crossings to match cross flow elevations.  On native surface roads, material generated from back slope sloughing and ditch cleaning is blended with the surface material being worked.   Intersection roads are bladed to assure proper blending of the two riding surfaces.  Each crew is equipped to maintain all roadway types.

Drainage maintenance includes culvert maintenance and cleaning, culvert replacement, ditch cleaning, riprap maintenance, riprap installation, silt fence repair, soils and geotextile stabilization.  Depending on the flow in the wash, riprap locations are grouted to secure the riprap.

The electrical crew responds to service calls and maintenance of the electric systems.  There is an average workload of 3-4 tasks per week for the electrical crew for service calls to replace lights, service gate motors and controls, service junction boxes and transformers and to perform line replacement.  Cerrudo performs routine maintenance of motorized vehicle access gates that range in size from 12’wide to 24’ wide.  Work includes maintenance of gate controls and gate mechanics, replacement of limit switches and infrared beams, replacement of control breakers and replacement of motors.  Lighting system maintenance and repair includes regular inspections and cleaning of the lights and light control panels, replacement of bulbs and ballasts, replacement of again breakers and photo-cells, and upgrades of the systems including new timers, feeders and vandal shields.  Lighting systems maintained include street lights, mid-height security lighting and 80’ tall stadium lights.

Vegetation and debris removal tasks for this contract are extensive.  The work has included debris removal from both the North and South sides of the border fence that accumulated following monsoon storm flows.  The debris removal has included silt and dirt deposits that have been carried by the storm flows as well as trash and debris.  The trash and debris includes a variety of items ranging from tires to mattresses to plastic bottles.  In most cases the work required Cerrudo to segregate trash, tires and debris from the dirt in order to properly dispose of all elements.  Dirt was then further segregated for use as rip-rap and backfill along sections of the border.  In all cases, the work was completed by Cerrudo’s crews using methods similar to those proposed for this project, specifically segregation through the use of excavators.

The vegetation control and removal tasks under this contract have included removal of vegetation that accumulated due to storm flows as well as trimming vegetation along the fence and border roads.  The work has been completed following the CBP Environmental Stewardship program along with specific requirements from other Federal Agencies such as the US National Park Service.  The vegetation removal has included both on-site disposal as well as trucking to a local landfill or other disposal site.