form a slurry when sprayed on the ground. The material shall allow
homogeneous absorption and percolation of moisture. Each package of the
cellulose fiber shall be marked by the manufacturer to show the air dry weight
content. Mulch shall be utilized on all newly-graded subgrade and topsoil
areas that cannot be seeded within five (5) days.
PART 3 - EXECUTION
3.1 CONSTRUCTION SEQUENCE
A. Construction of erosion control measures shall be completed prior to any site
work.
B. Sediment barriers shall be used at storm drain inlets; across minor swales and
ditches; and at other applications where the structure is of a temporary nature
and structural strength is not required. Sediment barriers are temporary
berms, diversions, or other barriers that are constructed to retain sediment
on-site by retarding and filtering storm runoff.
C. All temporary erosion control measures shall be maintained throughout the
course of construction activities until provisional acceptance of the Site
vegetation by ENGINEER or OWNER, at which time CONTRACTOR shall
remove all remaining temporary erosion control structures, and properly
dispose of accumulated sediment at temporary or permanent erosion control
structures on-site in areas approved by OWNER.
D. OWNER, ENGINEER, or the CQA Consultant may require additional erosion and
sediment controls be installed or that temporary erosion and sediment
controls be replaced. CONTRACTOR shall comply with said request and
immediately install the required controls.
3.2 CONSTRUCTION METHODS
A. All temporary erosion control measures shall be installed as shown on the
Drawings or as directed by OWNER, ENGINEER, or the CQA Consultant in the
field.
B. All temporary erosion control measures shall be installed in accordance with
manufacturer’s instructions.
C. Straw mulch shall be applied at a rate of 100 Ibs/1000 ft?.
D. CONTRACTOR shall provide protection against washouts by an approved
method. Any washout that occurs either in the CONTRACTOR’s work area or in
areas topographically below the work shall be regraded and reseeded at
CONTRACTOR’s expense until an accepted vegetative stand is established.
File No. 3066.09 Erosion and Sedimentation Control 02000 - 3 of 4 December 2017
