(a) General requirements.
(1) Existing road ditches,
drains or watercourses
be properly cleaned by the
’s contractor when essential to provide necessary drainage for the
. Such cleaning shall be as required by the DPW.
(2) All fences, obstructions, brush, shrubs and roots thereof
be removed entirely from the right-of-way where construction connected with the plat is performed, unless otherwise authorized by the DPW. Trees shall be removed as directed by the DPW. Depressions left after the removal of stumps and roots must be filled and graded to conform with the surrounding ground.
(b) Underground drainage structures.
(1) The grade and alignment of 30-inch diameter pipes or less
not vary more than one-fourth of an inch at any joint, and pipes greater than 30 inches in diameter shall not vary more than one-half of an inch. Batter boards with string lines or laser or other methods approved by the DPW must be provided for checking grade and alignment to the satisfaction of the Engineer.
(2) Any trench, the inside edge of which is located within three feet from the edge of the existing or proposed pavement or the back of the curb,
be backfilled with an approved granular material, placed and compacted in layers with a mechanical compactor, all as approved by the DPW.
(c) Right-of-way cleanup, seeding and mulching requirements.
(1) Cleanup
be Class A which means that no irregularity shall exist greater than one tenth of a foot above or below the lines as shown on the cross-section between the curb and right-of-way line.
(2) Seeding and mulching
be in accordance with MDOT Specifications.
A. Seeding
be MDOT roadside seeding, which consists of 50% perennial rye, 50% Kentucky bluegrass and 25% creeping red fescue. Combined seeds shall be spread at the minimum rate of 100 pounds per acre. A minimum of 240 pounds per acre of chemical fertilizer nutrients shall also be applied to seeded areas.
B. Mulching
consist of dry straw or hay spread at the rate of two tons per acre.
(Res. passed 11-12-1986)