HomeMy WebLinkAboutC010.0.13 - Maintenance GuidelinesPage 13
per Section 205.07 of the INDOT Standard Specifications (Attachment E). This requires inspections once
every seven (7) days and after every half inch rain event. Inspections, using the form specified in 108-c-
192d (Attachment E), will be documented and records maintained by the contractor. These records will
address the maintenance needs of each measure and identify additional measures necessary to remain in
compliance with applicable statutes and rules. Temporary measures requiring maintenance will be
returned to working conditions within 48 hours of the inspection. Evaluation reports will be made
available to the inspecting authority within 48 hours of a request. Specific measure maintenance is as
follows:
- Temporary silt fence and filter sock will be replaced if the fabric tears, starts to decompose, or
becomes ineffective. Deposited sediment will be removed when it reaches half the fence height
at its lowest point. Sediment removed during routine maintenance will be placed in an upland
area and mulched.
- Erosion control blankets shall be unrolled parallel to the primary direction of flow and placed in
direct contact with the soil surface. Erosion control blankets shall not bridge over surface
inconsistencies, and the edges of adjacent erosion control blankets shall be overlapped by 2 to 4
inches. Staples shall be placed to prevent seam separation in accordance with the manufacturer’s
recommendations.
Final stabilization of the project site will be achieved when land disturbing activities have been completed
and a vegetative density of seventy percent (70%) has been established on unpaved areas and areas not
covered by permanent structures.
The contractor will inform general contractors, construction management firms, grading or excavating
contractors, and utility contractors of the conditions and standards of this SWPPP as well as its schedule
for implementation.
The contractor will post a notice near the main entrance of the project site. The notice will be placed in a
publicly accessible location near the project field office. The notice will be maintained in a legible condition
and contain the following information: copy of the completed NOI letter, NPDES permit number, company
name, contact telephone number, and email address, and address of the project site owner. The notice
will remain posted at the site until the permit has been terminated.
12. Planned construction sequence that describes the implementation of stormwater quality
measures in relation to land disturbance
Inlet protections, scour protection, concentrated flow protections, and sheet flow protection shall be
installed prior to commencing land disturbing activities. Non-vegetated areas that are scheduled or likely
to be left inactive for seven (7) days or more will be temporarily stabilized with temporary seed and
temporary mulch per INDOT Standard Specification section 205 in Appendix E. Erosion and sediment
control measures for all existing structures shall be installed on all contract areas prior to any land
disturbance commences. As permanent stormwater structures are installed, temporary measures shall be
installed as needed. Upon completion of construction the temporary erosion control measures will be
removed.