A supplement to the “General Specifications for the Construction
of Roads, Bridges, and other Structures” of The Board of Genesee
County Road Commissioners of the County of Genesee, Flint, Michigan.
Description:
This work shall consist of planting trees on any subdivision street
or road under the jurisdiction of the Board of Genesee County Road
Commissioners.
Requirements:
1. Permits – No trees shall be planted without a permit from
The Board of Genesee County Road Commissioners.
2. Source and Habit – All trees must be nursery grown stock,
pruned to encourage the development of a central leader and a symmetrical
crown. They shall be uniform in height, with straight trunks, well-developed
leaders, tops and roots. They shall be free from all insects, diseases,
mechanical injuries, broken roots, or other objectionable features.
3. Time of Planting – Planting will be permitted only when
the soil is workable and temperature and weather conditions are
favorable; from April 1st to May 31st or October 1st to November
1st or when otherwise permitted by the Board’s forester.
4. Size and Species – Trees shall be 1-1/2” to 2-1/2”
in diameter measured 6” above the ground, have a root spread
of 16” to 22” and a height of from 10’ to 15’.
Larger trees will not be permitted except under special authorization
by the Board’s forester. The species to be planted will be
selected from the following list by the Board’s forester on
the basis of soil requirements and other technical factors:
1.
Sugar Maple 8.
European Sycamore
2.
Norway Maple 9.
Green Ash
3.
White Oak 10.
Thornless Locust
4.
Red Oak
11. Sweet Gum
5.
Scarlet Oak 12.
Sour Gum
6.
Pin Oak 13.
Hackberry
7.
American Sycamore
Unacceptable species for reasons of habit, appearance,
durability or
cleanliness are as follows:
1.
Poplar (Cottonwood or Aspen) 6. Soft Maple
2.
Willow 7.
Birch
3.
Box Elder 8.
Catalpa
4.
Chinese Elm
9. Ailanthus
5.
Black Cherry
5. Tree Location – Trees are to be planted 10 ft. from the
property line of a street 60 ft. in width. Tree planting adjacent
to a main highway will require a specific location by one of the
Board’s foresters. A minimum spacing of 40 ft. between trees
planted on the above line will be required except as directed by
the Board’s forester. A minimum distance of 20 ft. will be
required from the property line of an intersection street.
6. Tree holes – Tree holes shall be dug 6” deeper and
12” wider than the root spread of the tree to be planted,
to provide for the addition of topsoil and to retain the natural
spread of the tree roots.
7. Top Soil – A good loam top soil shall be used in the planting
of all trees. This soil shall be free from sticks, stones, sod or
clods, or any other material which would tend to allow air pockets
around the roots. The main root area shall be covered to a depth
of at least 3” after the soil is tamped around the tree roots.
8. Planting – Each tree shall be planted plumb, 1 to 2”
lower than the level at which it grew in the nursery. After compaction
of the soil around the tree, the soil shall be saturated with water
to completely wet and settle it around the roots.
9. Staking, guying and wrapping – Staking, guying or wrapping
of all trees shall be required if so directed by the Board’s
forester.
10. All state and local laws shall be observed in the procurement
and planting of trees.
THE BOARD OF COUNTY ROAD COMMISSIONERS
OF THE
COUNTY OF GENESEE, MICHIGAN
