L1 Border Fence Sierra Blanca, Texas
Construction of 4.89 miles of permanent vehicle barriers.
- Place and maintain erosion control measures
- Levee construction and maintenance along the Rio Grande River
- Clearing and grubbing
- Disposal of spoils
- Construction engineering
- Development of materials site
- Excavation
- Import, spreading and compaction of structural fill on levee
- Import, spreading and compaction of aggregate surface course
- Manufacture pre-cast concrete vehicle barriers
- Fabricate steel bollards for vehicle barriers
- Fabricate steel bollard panels for low water crossings
- Fill bollards with concrete
- Transport and place pre-cast concrete vehicle barriers
- Place bollards in vehicle barriers
- Install cable retaining system and lockboxes on bollards at vehicle barriers
- Trenching for concrete foundations at low water crossings
- Dewater trenches as necessary
- Fabricate and place reinforcing steel at low water crossings
- Pour concrete foundations and place fence panels at low water crossings
- Place rip rap at low water crossings
- Place pre-fabricated concrete mats at low water crossings
