The permit holder shall comply with the following standards when engaging in the work.
Subd. 1. Conduct the operations and perform the work in a manner as to ensure the least obstruction and interference to traffic.
Subd. 2. Take adequate precautions to ensure the safety of the general public and those who require access to abutting property.
Subd. 3. If required by the City Engineer, notify adjoining property owners prior to the commencement of work which may disrupt the use of and access to such adjoining properties.
Subd. 4. In all cases where construction work interferes with the normal use of the construction area, provide for closing the construction area to traffic or to afford it restricted use of the area and comply with the Minnesota Manual On Uniform Traffic Control Devices traffic safety signing requirements.
Subd. 5. Exercise precaution at all times for the protection of persons, including employees and property.
Subd. 6. Protect and identify excavations and work operations with barricade flags, and if required, by flagmen in the daytime, and by warning lights at night.
Subd. 7. Provide proper trench protection as required by O.S.H.A. when necessary and depending upon the type of soil, in order to prevent cave-ins endangering life or tending to enlarge the excavation.
Subd. 8. Protect the root growth of trees and shrubbery.
Subd. 9. Installation of pipe (utility conductors) under Portland Cement Concrete, asphalt concrete, or other high-type bituminous pavements shall be done by jacking, auguring or tunneling as directed by the City Engineer unless otherwise authorized. HDPE sleeving shall be an acceptable casing or sleeving material for telecommunications installations.
Subd. 10. When removing pavement of Portland Cement Concrete, asphalt concrete or high-type built-up bituminous surfacing, the pavement shall be removed on each side of the trench or excavation a distance of nine inches beyond the trench width and length, in order to provide a shoulder and solid foundation for the surface restoration.
Subd. 11. To obtain a straight edge and neat-appearing opening in pavement surfaces, the following procedure is required:
a. Portland Cement Concrete Pavement - The surface shall be saw-cut scored two inches deep and the concrete broken out by sledge or pneumatic hammer chisel.
b. Asphalt Concrete - The surface shall be cut full depth by pneumatic hammer chisel.
Subd. 12. Excavations, trenches and jacking pits off the roadway or adjacent to the roadway or curbing shall be sheathed and braced depending upon location and soil stability, and as directed by the city.
Subd. 13. Excavations, trenches, directional borings, and jacking pits shall be protected when unattended to prevent entrance of surface drainage.
Subd. 14. All backfilling must be placed in six inch lifts at optimum moisture and compacted 100% of AASHTO density. Compaction shall be accomplished with hand, pneumatic or vibrating compactors as appropriate. Backfill material shall be Class 5, or better in the judgment of the City Engineer. The City Engineer may permit backfilling with the material from the excavation provided such material is granular in nature and acceptable to the City Engineer.
Subd. 15. Compacted backfill shall be brought to street grade and crowned to match the existing driving surface.
Subd. 16. Street and pedestrian traffic shall be maintained throughout construction unless provided otherwise by the permit.
Subd. 17. No lugs damaging to roadway surfaces may be used.
Subd. 18. Dirt or debris must be promptly removed during construction.
Subd. 19. Other reasonable standards and requirements of the City Engineer.
(Ord. 552, passed - -2018)