811.1 811.4
811.1DESCRIPTION —This work is furnishing, installing, and maintaining temporary protective fencing
within the project limits for sedimentation traps and basins and for existing trees, shrubs, vegetated wetland areas, and archaeological sites , as indicated.
811.2MATERIAL —
weather resistant, easily maintained fencing that provides a substantial barrier.
and with at least ten fence- holding lugs of the rivet type. The Representative may accept other posts.
811.3CONSTRUCTION —Fence desirable wooded areas, individual trees, and shrubs designated for
protection, before beginning other general project work. Where directed, fence other adjacent areas to be protected such as sedimentation traps and basins, existing archaeological sites, and existing vegetated wetland areas . To verify extent of protection, conduct a field observation before clearing and grubbing operations with the Representative, and if necessary, the Design Project Manager and the District Environmental Manager . Do not stockpile materials under, or within, protected vegetation areas. Prohibit construction traffic within protected areas. Place the fence at the dripline of trees or plants, but avoid causing root damage when driving posts. Replace damaged fence in ki nd within 24 hours of damage, as directed. Remove temporary protective fence when directed or after completion of project .
811.4MEASUREMENT AND PAYMENT —Linear Foot
845.1 845.4(b)
845.1DESCRIPTION —This work is construction of temporary or permanent control measures, as ordered
during the contract life, to control unforeseen pollution of surface water and groundwater.
845.2MATERIAL —
• As specified in applicable parts of Sections 804, 805, and 806.
• Erosion and sediment pollution control devices . as shown on the Standard Drawings .
• Other water pollution control measures and devices as directed.
845.3CONSTRUCTION —As directed during construction, provide water pollution control measures to
prevent or abate unforeseen pollution of surface water and groundwater resources. These measures are separate from those temporary and permanent water pollution control features designed for the project. Coordinate control measures with the Erosion and Sediment Control Plan and permanent features to ensure economical, effective, and continuous pollution control throughout the construction and post -construction periods. Also comply with the requirements specified in Section 107.28. If directed, place pollution control measures for authorized construction areas