20140309 Ver 1_Stormwater Info_20140320

BMP MAINTENANCE PLAN
BMP 4- DRY DETENTION POND
SOUTH GARNER HIGH SCHOOL
GARNER, NORTH CAROLINA
JANUARY, 2014
Prepared by:
CLH DESIGN, PA
CARY, NC

General BMP Maintenance Guidelines
Regularly inspect and maintain Dry Detention Ponds as described herein.
Preserving the structural integrity of the dam of a pond BMP (Best Management Practice) is important in
protecting downstream life and property. There are at least four aspects of the dam that require specific
attention: 1. Assessment of hazard potential due to changes in downstream development; 2. Seepage; 3.
Dam material problems; 4. Vegetation growth on the dam embankments.
Assessment of Hazard Potential
As new development occurs downstream of the BMP, the chance of significant property damage or
danger to human life may increase if catastrophic failure of the dam occurs. Although the dam may be
initially exempt from regulation by the State, the owner is responsible for reporting to the City and Dam
Safety Office downstream development that may affect the hazard classification of the dam.
Seepage
The downstream side of the dam should be inspected regularly for evidence of significant seepage.
Seepage can emerge anywhere below the normal pool elevation, including the downstream slope of earth
dams, areas beyond the toe of the dam, and around the spillway or pond outlet conduit. Indications of
significant seepage include areas where the soil is saturated or where there is a flowing "spring" or leak.
If "sinkholes" in the dam embankment are noticed, or if constant flowing water is noticed on the
downstream side of the dam, then seepage has become excessive and professional engineering advice
should be sought immediately to avert a major structural problem or a catastrophic failure of the dam.
Dam Material Problems
For earth dams, pronounced cracks on the embankment surface indicate the first stages of potential dam
failure. Transverse cracks (running perpendicular to the embankment face) generally indicating
differential settlement of the dam, can provide pathways for excessive seepage. Longitudinal cracks
(running parallel to the embankment face) may be due to inadequate compaction of the dam during
construction or shrinkage of the clay (desiccation) in the top of the embankment during prolonged dry
conditions. These cracks may eventually lead to slope failure such as sliding or sloughing.
For reinforced concrete dams, the concrete should be checked for pronounced cracking, leakage from the
joints, and displacement (noticeable leaning or bulging). Also, excessive seepage, leakage, or springs just
downstream of the concrete dam could be indicative of potential seepage- related "piping" problems under
the dam.
If such problems or other structural problems are observed, professional engineering advice should be
sought.
Vegetative Growth
Trees and other woody vegetation are not permitted on the top slopes or dam embankments. Large root
systems from woody vegetation can weaken the dam structure and provide seepage pathways. Thick
vegetative cover can also provide a haven for burrowing animals such as the groundhog. These animals
can create a network of burrows in the dam embankments that can significantly weaken the dam, by
creating seepage paths, which may eventually lead to dam failure. Mowing of the dam embankments
should occur, at a minimum, once every 6 months to prevent woody vegetation growth and cover for
burrowing animals.
Trash and vegetative floatables (grass clippings, leaves, limbs, etc.) should be cleaned from the pond
surface and surroundings periodically to promote a healthy, aesthetically pleasing environment, and to
prevent blockage of the pond outlets. Studies have shown that people are less likely to litter ponds that
are aesthetically pleasing and support wildlife.

Dry Detention Ponds
Buffer Vegetation
Strong rooted grasses that have a high tolerance for erosion should be planted on embankments around
the pond. Good grass cover should be maintained around the pond perimeter to prevent excessive
sediment from entering the pond. The following should be used as guidelines for maintaining buffer
vegetation.
To sustain the structural integrity of the dam, no trees or woody vegetation should be allowed on the dam
embankments or top of dam. These areas should be mowed on a quarterly basis.
To preserve the hydraulic capacity of the pond system and to prevent runoff from backing up, inlet and
outlet areas should be kept clear of heavy vegetation.
To provide easy access to the pond, the maintenance access around the pond should be free of trees and
mowed on a periodic basis.
Trees and brush, if desired, are acceptable on pond embankments other than the dam.
Erosion Problems
Unsuitable fill material, inadequate compaction, and/or poor stabilization of earth structures can result in
accelerated erosion where high runoff velocities exist. High velocities usually occur on steep pond
embankments, at pond inlet and outlet discharge areas, and where the water is constricted to channel flow.
The entire pond area should be inspected quarterly for signs of erosion, paying special attention to the
following areas.
Embankments
If pond embankments are not kept well vegetated with grasses, rill erosion (small channels formed in the
embankment due to poor grass cover) may occur. Rill erosion can be repaired by filling the small
channels with suitable soil, compacting, and seeding. If may be necessary to install temporary erosion
control (such as hay bales) along heavily eroded areas to allow the repaired areas to stabilize. It is
especially important to inspect for and immediately repair any erosion on the dam embankments.
Pipe Inlet and Outlet areas
Where erosion causes the undercutting of the downstream end of pipe, the undercut should be stabilized
immediately to prevent the end pipe section from "breaking" off. Eroded areas should be filled with good
compatible soil and covered with geotextile and riprap.
Open Channel Flow
Eroded areas should be seeded/sodded and protected with temporary velocity dissipation (such as
excelsior matting, straw bales, etc.) If erosion continues, a more robust lining should be used.
Blockage of Outlets
Dry extended detention ponds are designed for the water to exit the pond through the low flow orifice(s),
the principal spillway, and the emergency spillway. It is important to check all three outlets for blockage
that would impair the pond" water quality and hydraulic functionality.
Low Flow Orifice(s)
Unless an inverted orifice is used, some type of trash guard is to be maintained over the low flow
orifice(s) to prevent clogging. When the orifice becomes clogged the water level rises to the principal
spillway elevation and the benefits associated with temporary storage and its gradual release are lost. To

preserve "extended detention ": the low flow orifice should be inspected for blockage monthly and after
large storms.
Principal and Emergency Spillway
Principal and emergency spillways are designed to safely convey larger than one -inch storms that produce
runoff, which exceed the water quality volume of the BMP. IF these spillways are blocked so they do not
operate at full capacity, the risk of dam overtopping or other uncontrolled releases may result. To ensure
the hydraulic capacity of the spillways, the spillways should be inspected for blockage monthly and after
large storms.
If a riser/barrel is used for the principal spillway, a trash rack is to be maintained on the riser.
Vegetative growth in the riser should be removed promptly so that the design capacity of the spillway is
maintained. Also, the outlet area where the barrel projects from the fill should be clear of tree limbs,
sediment accumulation, etc.
Sediment Accumulation
To preserve the BMP's pollutant removal capability, sediment must be removed in areas where the
capacity of the design sediment storage volume has been exceeded.
MAINTENANCE OF DRY DETENTION PONDS
1. After every significant runoff producing rainfall event and at least monthly:
a. Inspect the dry detention basin system for sediment accumulation, erosion, trash accumulation,
vegetated cover, and general condition.
b. Check and clear the orifice of any obstructions such that drawdown of the temporary pool occurs
within 2 to 5 days as designed.
2. Repair eroded areas immediately, re -seed as necessary to maintain good vegetative cover, mow
vegetative cover to maintain a maximum height of six inches, and remove trash as needed.
Inspect and repair the collection system (i.e. catch basins, piping, swales, riprap, etc.) quarterly to
maintain proper functioning.
4. Remove accumulated sediment from the dry detention basin system semi- annually or when depth is
reduced to 75% of the original design depth (see diagram below). Removed sediment shall be
disposed of in an appropriate manner and shall be handled in a manner that will not adversely impact
water quality (i.e. stockpiling near a dry detention basin or stream, etc.).
The measuring device used to determine the sediment elevation shall be such that it will give an
accurate depth reading and not readily penetrate into accumulated sediments.
BASIN DIAGRAM
Permanent Pool Elevation
75%
Sediment Removal El. 75%
- - - - - - - - - - - - - - Sediment Removal Elevation
----------------------------------------- - - - - -- -
Bottom Elevation 25% 25%
Bottom Elevation
MAIN POND

5. Remove cattails and other indigenous wetland plants when they cover 50% of the basin surface.
These plants shall be encouraged to grow along the vegetated shelf and forebay berm.
6. If the basin must be drained for an emergency or to perform maintenance, the flushing of sediment
through the emergency drain shall be minimized to the maximum extent practical.
7. All components of the dry detention basin system shall be maintained in good working order.
Date of Inspection:
Inspected By:
Pond No.:
Description
Method
Frequency
Time of year
✓
EMBANKMENT
Mow lawn grass on embankment.
Mower
Monthly as
needed
All year
Inspect and repair erosion.
Re -seed Lawn Grass Seeding Mixture.
Visual
Monthly
All year
Check pond embankment for bare earth
and eroded areas. Re -seed Lawn Grass
Visual
Quarterly
All year
Check the downstream toe of the
embankment for "springs" or wet spots
Visual
Quarterly
All year
Check embankment and crest for
pronounced cracking or slope failures
Visual
Quarterly
All year
Check for pipe undercut at inlet and outlet
discharge areas
Visual
Quarterly
All year
Check for erosion downstream of pipe
outlet
Visual
Quarterly
All year
Check for new development downstream
of dam that may be effected by failure
Visual
Yearly
All year
INTERIOR STRUCTURE /OPERATION
Check sediment accumulation in main
pond area
Visual
Yearly
All year
Check for blockage of low flow orifices,
principal and emergency spillways
Visual
Yearly
All year
Open and close pond drain to ensure
proper operation
Visual
Monthly
All year
Remove accumulation of trash
Visual
Yearly
All year
INSPECTION NOTES

BMP Location Plan

I acknowledge and agree by my signature below that I am responsible for the performance of the
maintenance procedures listed above. I agree to notify DWQ of any problems with the system or
prior to any changes to the system or responsible party.
Project name: South Garner High School
BMP drainage area number: BMP -4 Dry Detention Pond
Print name:
Title:
Address:
Phone:
Signature:
Date:
Note: The legally responsible party should not be a homeowners association unless more than 50% of the lots
have been sold and a resident of the subdivision has been named the president.
I, , a Notary Public for the State of
, County of , do hereby certify that
personally appeared before me this day of
, and acknowledge the due execution of the forgoing stormwater
dry detention maintenance requirements. Witness my hand and official seal,
SEAL
My commission expires

BMP MAINTENANCE PLAN
BMP 1- WET DETENTION POND
SOUTH GARNER HIGH SCHOOL
GARNER, NORTH CAROLINA
JANUARY, 2014
Prepared by:
CLH DESIGN, PA
CARY, NC

General BMP Maintenance Guidelines
Regularly inspect and maintain Wet Detention Ponds as described herein.
Preserving the structural integrity of the dam of a pond BMP (Best Management Practice) is important in
protecting downstream life and property. There are at least four aspects of the dam that require specific
attention: 1. Assessment of hazard potential due to changes in downstream development; 2. Seepage; 3.
Dam material problems; 4. Vegetation growth on the dam embankments.
Assessment of Hazard Potential
As new development occurs downstream of the BMP, the chance of significant property damage or
danger to human life may increase if catastrophic failure of the dam occurs. Although the dam may be
initially exempt from regulation by the State, the owner is responsible for reporting to the City and Dam
Safety Office downstream development that may affect the hazard classification of the dam.
Seepage
The downstream side of the dam should be inspected regularly for evidence of significant seepage.
Seepage can emerge anywhere below the normal pool elevation, including the downstream slope of earth
dams, areas beyond the toe of the dam, and around the spillway or pond outlet conduit. Indications of
significant seepage include areas where the soil is saturated or where there is a flowing "spring" or leak.
If "sinkholes" in the dam embankment are noticed, or if constant flowing water is noticed on the
downstream side of the dam, then seepage has become excessive and professional engineering advice
should be sought immediately to avert a major structural problem or a catastrophic failure of the dam.
Dam Material Problems
For earth dams, pronounced cracks on the embankment surface indicate the first stages of potential dam
failure. Transverse cracks (running perpendicular to the embankment face) generally indicating
differential settlement of the dam, can provide pathways for excessive seepage. Longitudinal cracks
(running parallel to the embankment face) may be due to inadequate compaction of the dam during
construction or shrinkage of the clay (desiccation) in the top of the embankment during prolonged dry
conditions. These cracks may eventually lead to slope failure such as sliding or sloughing.
For reinforced concrete dams, the concrete should be checked for pronounced cracking, leakage from the
joints, and displacement (noticeable leaning or bulging). Also, excessive seepage, leakage, or springs just
downstream of the concrete dam could be indicative of potential seepage- related "piping" problems under
the dam.
If such problems or other structural problems are observed, professional engineering advice should be
sought.
Vegetative Growth
Trees and other woody vegetation are not permitted on the top slopes or dam embankments. Large root
systems from woody vegetation can weaken the dam structure and provide seepage pathways. Thick
vegetative cover can also provide a haven for burrowing animals such as the groundhog. These animals
can create a network of burrows in the dam embankments that can significantly weaken the dam, by
creating seepage paths, which may eventually lead to dam failure. Mowing of the dam embankments
should occur, at a minimum, once every 6 months to prevent woody vegetation growth and cover for
burrowing animals.
Trash and vegetative floatables (grass clippings, leaves, limbs, etc.) should be cleaned from the pond
surface and surroundings periodically to promote a healthy, aesthetically pleasing environment, and to
prevent blockage of the pond outlets. Studies have shown that people are less likely to litter ponds that
are aesthetically pleasing and support wildlife.

Wet Detention Ponds
Buffer Vegetation
Strong rooted grasses that have a high tolerance for erosion should be planted on embankments around
the pond. Good grass cover should be maintained around the pond perimeter to prevent excessive
sediment from entering the pond. The following should be used as guidelines for maintaining buffer
vegetation.
To sustain the structural integrity of the dam, no trees or woody vegetation should be allowed on the dam
embankments or top of dam. These areas should be mowed on a quarterly basis.
To preserve the hydraulic capacity of the pond system and to prevent runoff from backing up, inlet and
outlet areas should be kept clear of heavy vegetation.
To provide easy access to the pond, the maintenance access around the pond should be free of trees and
mowed on a periodic basis.
Trees and brush, if desired, are acceptable on pond embankments other than the dam.
Erosion Problems
Unsuitable fill material, inadequate compaction, and/or poor stabilization of earth structures can result in
accelerated erosion where high runoff velocities exist. High velocities usually occur on steep pond
embankments, at pond inlet and outlet discharge areas, and where the water is constricted to channel flow.
The entire pond area should be inspected quarterly for signs of erosion, paying special attention to the
following areas.
Embankments
If pond embankments are not kept well vegetated with grasses, rill erosion (small channels formed in the
embankment due to poor grass cover) may occur. Rill erosion can be repaired by filling the small
channels with suitable soil, compacting, and seeding. If may be necessary to install temporary erosion
control (such as hay bales) along heavily eroded areas to allow the repaired areas to stabilize. It is
especially important to inspect for and immediately repair any erosion on the dam embankments.
Pipe Inlet and Outlet areas
Where erosion causes the undercutting of the downstream end of pipe, the undercut should be stabilized
immediately to prevent the end pipe section from "breaking" off. Eroded areas should be filled with good
compatible soil and covered with geotextile and riprap.
Open Channel Flow
Eroded areas should be seeded/sodded and protected with temporary velocity dissipation (such as
excelsior matting, straw bales, etc.) If erosion continues, a more robust lining should be used.
Blockage of Outlets
Wet extended detention ponds are designed for the water to exit the pond through the low flow orifice(s),
the principal spillway, and the emergency spillway. It is important to check all three outlets for blockage
that would impair the pond" water quality and hydraulic functionality.
Low Flow Orifice(s)
Unless an inverted orifice is used, some type of trash guard is to be maintained over the low flow
orifice(s) to prevent clogging. When the orifice becomes clogged the water level rises to the principal
spillway elevation and the benefits associated with temporary storage and its gradual release are lost. To

preserve "extended detention ": the low flow orifice should be inspected for blockage monthly and after
large storms.
Principal and Emergency Spillway
Principal and emergency spillways are designed to safely convey larger than one -inch storms that produce
runoff, which exceed the water quality volume of the BMP. IF these spillways are blocked so they do not
operate at full capacity, the risk of dam overtopping or other uncontrolled releases may result. To ensure
the hydraulic capacity of the spillways, the spillways should be inspected for blockage monthly and after
large storms.
If a riser/barrel is used for the principal spillway, a trash rack is to be maintained on the riser.
Vegetative growth in the riser should be removed promptly so that the design capacity of the spillway is
maintained. Also, the outlet area where the barrel projects from the fill should be clear of tree limbs,
sediment accumulation, etc.
Sediment Accumulation
To preserve the BMP's pollutant removal capability, sediment must be removed in areas where the
capacity of the design sediment storage volume has been exceeded.
The forebay helps to improve the removal efficiency of the pond system by trapping the majority of
coarser suspended solids behind the baffle. When sediment deposition in the forebay exceeds the
designed sediment storage capacity for the forebay, the forebay must be dredged. An indication of when
the forebay sediment capacity is exceeded is when sediment bars are visible near the inlet discharge or
when the sediment level at the inlet to the pond is less than one foot below the normal pool surface (the
elevation of the pool is at the bottom of the low flow orifice). Typically, forebays will need to be dredged
every 5 to 10 years.
Depth measurements relative to the normal surface elevation (bottom of water quality orifice) should be
taken at several locations around the pond. The sediment is to be removed when the measured depth is
less than the design permanent pool depth. If a forebay is sued at the inlet area of the pond and is
regularly dredged, the frequency of dredging the entire pond could be greatly reduced.

MAINTENANCE OF WET DETENTION PONDS
After every significant runoff producing rainfall event and at least monthly:
a. Inspect the wet detention basin system for sediment accumulation, erosion, trash accumulation,
vegetated cover, and general condition.
b. Check and clear the orifice of any obstructions such that drawdown of the temporary pool occurs
within 2 to 5 days as designed.
2. Repair eroded areas immediately, re -seed as necessary to maintain good vegetative cover, mow
vegetative cover to maintain a maximum height of six inches, and remove trash as needed.
Inspect and repair the collection system (i.e. catch basins, piping, swales, riprap, etc.) quarterly to
maintain proper functioning.
4. Remove accumulated sediment from the wet detention basin system semi- annually or when depth is
reduced to 75% of the original design depth (see diagram below). Removed sediment shall be
disposed of in an appropriate manner and shall be handled in a manner that will not adversely impact
water quality (i.e. stockpiling near a wet detention basin or stream, etc.).
The measuring device used to determine the sediment elevation shall be such that it will give an
accurate depth reading and not readily penetrate into accumulated sediments.
BASIN DIAGRAM
Permanent Pool Elevation
Sediment Removal El. 75%
- - - - - - - - - - - - - - - -Sediment Removal Elevation
---------------------- - - - - -- 125% - - --
�Bottom Elevation -----------------
25% j
FOREBAY
Bottom Elevation
MAIN POND
Remove cattails and other indigenous wetland plants when they cover 50% of the basin surface.
These plants shall be encouraged to grow along the vegetated shelf and forebay berm.
6. If the basin must be drained for an emergency or to perform maintenance, the flushing of sediment
through the emergency drain shall be minimized to the maximum extent practical.
7. All components of the wet detention basin system shall be maintained in good working order.
8. Level spreaders or other structures that provide diffuse flow shall be maintained every six months.
All accumulated sediment and debris shall be removed from the structure, and a level elevation shall
be maintained across the entire flow spreading structure. Any down gradient erosion must be
repaired and/or replanted as necessary.

Date of Inspection:
Inspected By:
Pond No.:
Description
Method
Frequency
Time of year
✓
EMBANKMENT
Mow lawn grass on embankment.
Mower
Monthly as
needed
All year
Inspect and repair erosion.
Re -seed Lawn Grass Seeding Mixture.
Visual
Monthly
All year
Check pond embankment for bare earth
and eroded areas. Re -seed Lawn Grass
Visual
Quarterly
All year
Check the downstream toe of the
embankment for "springs" or wet spots
Visual
Quarterly
All year
Check embankment and crest for
pronounced cracking or slope failures
Visual
Quarterly
All year
Check for pipe undercut at inlet and outlet
discharge areas
Visual
Quarterly
All year
Check for erosion downstream of pipe
outlet
Visual
Quarterly
All year
Check for new development downstream
of dam that may be effected by failure
Visual
Yearly
All year
INTERIOR STRUCTURE /OPERATION
Check sediment accumulation in forebay
area
Visual
Yearly
All year
Check sediment accumulation in main
pond area
Visual
Yearly
All year
Check for blockage of low flow orifices,
principal and emergency spillways
Visual
Monthly
All year
Open and close pond drain to ensure
proper operation
Visual
Yearly
All year
Remove accumulation of trash
Visual
Monthly
All year
PLANTS
Remove and replace all dead and diseased
vegetation considered beyond treatment
See planting
specifications
Twice a year
As directed by
landscaper
Treat all diseased trees and shrubs
Mechanical or by
hand
N/A
Varies, dependent
on insect/disease
infestation
Water plant material at the end of each
day for fourteen consecutive days and
after planting is completed
By hand
Daily
Immediately after
completion of
project
Replace of support stakes
By hand
Once a year
Only remove
stakes in the spring
Replace any deficient stakes or wires
By hand
As needed
As needed
INSPECTION NOTES

BMP Location Plan

I acknowledge and agree by my signature below that I am responsible for the performance of the
maintenance procedures listed above. I agree to notify DWQ of any problems with the system or
prior to any changes to the system or responsible party.
Project name: South Garner High School
BMP drainage area number: BMP -1 Wet Detention Pond
Print name:
Title:
Address:
Phone:
Signature:
Date:
Note: The legally responsible party should not be a homeowners association unless more than 50% of the lots
have been sold and a resident of the subdivision has been named the president.
I, , a Notary Public for the State of
, County of , do hereby certify that
personally appeared before me this day of
, and acknowledge the due execution of the forgoing stormwater
wetland maintenance requirements. Witness my hand and official seal,
SEAL
My commission expires

BMP MAINTENANCE PLAN
BMP-2 DETENTION WETLAND
SOUTH GARNER HIGH SCHOOL
GARNER, NORTH CAROLINA
JANUARY, 2014
Prepared by:
CLH DESIGN, PA
CARY, NC

General BMP Maintenance Guidelines
Regularly inspect and maintain constructed Detention Wetland as described herein.
Preserving the structural integrity of the dam of a wetland BMP is important in protecting downstream
life and property. There are at least four aspects of the dam that require specific attention: 1. Assessment
of hazard potential due to changes in downstream development; 2. Seepage; 3. Dam material problems;
4. Vegetation growth on the dam embankments.
Assessment of Hazard Potential
As new development occurs downstream of the BMP, the chance of significant property damage or
danger to human life may increase if catastrophic failure of the dam occurs. Although the dam may be
initially exempt from regulation by the State, the owner is responsible for reporting to the County and
Dam Safety Office downstream development that may affect the hazard classification of the dam.
Seepage
The downstream side of the dam should be inspected regularly for evidence of significant seepage.
Seepage can emerge anywhere below the normal pool elevation, including the downstream slope of earth
dams, areas beyond the toe of the dam, and around the spillway or wetland outlet conduit. Indications of
significant seepage include areas where the soil is saturated or where there is a flowing "spring" or leak.
If "sinkholes" in the dam embankment are noticed, or if constant flowing water is noticed on the
downstream side of the dam, then seepage has become excessive and professional engineering advice
should be sought immediately to avert a major structural problem or a catastrophic failure of the dam.
Dam Material Problems
For earth dams, pronounced cracks on the embankment surface indicate the first stages of potential dam
failure. Transverse cracks (running perpendicular to the embankment face) generally indicating
differential settlement of the dam, can provide pathways for excessive seepage. Longitudinal cracks
(running parallel to the embankment face) may be due to inadequate compaction of the dam during
construction or shrinkage of the clay (desiccation) in the top of the embankment during prolonged dry
conditions. These cracks may eventually lead to slope failure such as sliding or sloughing.
For reinforced concrete dams, the concrete should be checked for pronounced cracking, leakage from the
joints, and displacement (noticeable leaning or bulging). Also, excessive seepage, leakage, or springs just
downstream of the concrete dam could be indicative of potential seepage- related "piping" problems under
the dam.
If such problems or other structural problems are observed, professional engineering advice should be
sought.
Vegetative Growth
Trees and other woody vegetation are not permitted on the top slopes or dam embankments. Large root
systems from woody vegetation can weaken the dam structure and provide seepage pathways. Thick
vegetative cover can also provide a haven for burrowing animals such as the groundhog. These animals
can create a network of burrows in the dam embankments that can significantly weaken the dam, by
creating seepage paths, which may eventually lead to dam failure. Mowing of the dam embankments
should occur, at a minimum, once every 6 months to prevent woody vegetation growth and cover for
burrowing animals.
Trash and vegetative floatables (grass clippings, leaves, limbs, etc.) should be cleaned from the wetland
surface and surroundings periodically to promote a healthy, aesthetically pleasing environment, and to
prevent blockage of the wetland outlets. Studies have shown that people are less likely to litter wetlands
that are aesthetically pleasing and support wildlife.
2

Detention Wetlands
Buffer Vegetation
Strong rooted grasses that have a high tolerance for erosion should be planted on embankments around
the wetland. Good grass cover should be maintained around the wetland perimeter to prevent excessive
sediment from entering the wetland. The following should be used as guidelines for maintaining buffer
vegetation.
To sustain the structural integrity of the dam, no trees or woody vegetation should be allowed on the dam
embankments or top of dam. These areas should be mowed on a quarterly basis.
To preserve the hydraulic capacity of the wetland system and to prevent runoff from backing up, inlet and
outlet areas should be kept clear of heavy vegetation.
To provide easy access to the wetland, the maintenance access around the wetland should be free of trees
and mowed on a periodic basis.
Trees and brush, if desired, are acceptable on wetland embankments other than the dam.
Erosion Problems
Unsuitable fill material, inadequate compaction, and/or poor stabilization of earth structures can result in
accelerated erosion where high runoff velocities exist. High velocities usually occur on steep wetland
embankments, at wetland inlet and outlet discharge areas, and where the water is constricted to channel
flow. The entire wetland area should be inspected quarterly for signs of erosion, paying special attention
to the following areas.
Embankments
If wetland embankments are not kept well vegetated with grasses, rill erosion (small channels formed in
the embankment due to poor grass cover) may occur. Rill erosion can be repaired by filling the small
channels with suitable soil, compacting, and seeding. If may be necessary to install temporary erosion
control (such as hay bales) along heavily eroded areas to allow the repaired areas to stabilize. It is
especially important to inspect for and immediately repair any erosion on the dam embankments.
Pipe Inlet and Outlet areas
Where erosion causes the undercutting of the downstream end of pipe, the undercut should be stabilized
immediately to prevent the end pipe section from "breaking" off. Eroded areas should be filled with good
compatible soil and covered with geotextile and riprap.
Open Channel Flow
Eroded areas should be seeded/sodded and protected with temporary velocity dissipation (such as
excelsior matting, straw bales, etc.) If erosion continues, a more robust lining should be used.
Blockage of Outlets
Detention wetlands are designed for the water to exit the wetland through the low flow orifice(s), the
principal spillway, and the emergency spillway. It is important to check all three outlets for blockage that
would impair the wetland" water quality and hydraulic functionality.
Low Flow Orifice(s)
Unless an inverted orifice is used, some type of trash guard is to be maintained over the low flow
orifice(s) to prevent clogging. When the orifice becomes clogged the water level rises to the principal
spillway elevation and the benefits associated with temporary storage and its gradual release are lost. To
G�

preserve "extended detention ": the low flow orifice should be inspected for blockage monthly and after
large storms.
Principal and Emergency Spillway
Principal and emergency spillways are designed to safely convey larger than one -inch storms that produce
runoff, which exceed the water quality volume of the BMP. IF these spillways are blocked so they do not
operate at full capacity, the risk of dam overtopping or other uncontrolled releases may result. To ensure
the hydraulic capacity of the spillways, the spillways should be inspected for blockage monthly and after
large storms.
If a riser/barrel is used for the principal spillway, a trash rack is to be maintained on the riser.
Vegetative growth in the riser should be removed promptly so that the design capacity of the spillway is
maintained. Also, the outlet area where the barrel projects from the fill should be clear of tree limbs,
sediment accumulation, etc.
Sediment Accumulation
To preserve the BMP's pollutant removal capability, sediment must be removed in areas where the
capacity of the design sediment storage volume has been exceeded.
The forebay and deep pool helps to improve the removal efficiency of the wetland system by trapping the
majority of coarser suspended solids behind the baffle. When sediment deposition in the forebay and
deep pool exceeds the designed sediment storage capacity, the forebay and deep pool must be dredged.
An indication of when the forebay and deep pool sediment capacity is exceeded is when sediment bars are
visible near the inlet discharge or when the sediment level at the inlet to the wetland is less than one foot
below the normal pool surface (the elevation of the pool is at the bottom of the low flow orifice).
Typically, forebays and deep pools will need to be dredged every 5 to 10 years.
Depth measurements relative to the normal surface elevation (bottom of water quality orifice) should be
taken at several locations around the wetland. The sediment is to be removed when the measured depth is
less than the design permanent pool depth. If a forebay is sued at the inlet area of the wetland and is
regularly dredged, the frequency of dredging the entire wetland could be greatly reduced.
M

Stormwater Wetland Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a log in
a known set location. Any deficient BMP elements noted in the inspection will be corrected,
repaired or replaced immediately. These deficiencies can affect the integrity of structures,
safety of the public, and the removal efficiency of the BMP.
Important maintenance procedures:
— Immediately after the stormwater wetland is established, the wetland plants will be
watered twice weekly if needed until the plants become established (commonly six
weeks).
— No portion of the stormwater wetland will be fertilized after the first initial fertilization
that is required to establish the wetland plants.
— Stable groundcover will be maintained in the drainage area to reduce the sediment load
to the wet detention basin.
— Once a year, a dam safety expert will inspect the embankment.
After the wet detention pond is established, I will inspect it once a month and within 24 hours
after every storm event greater than 1.0 inches. Records of operation and maintenance will be
kept in a known set location and will be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall be
repaired immediately.
BMP element:
Potential problem:
How I will remediate the problem:
The entire BMP
Trash /debris is present.
Remove the trash /debris.
The perimeter of the
Areas of bare soil and /or
Regrade the soil if necessary to
wetland
erosive gullies have formed.
remove the gully, and then plant a
ground cover and water until it is
established. Provide lime and a
one -time fertilizer application.
Vegetation is too short or too
Maintain vegetation at a height of
long.
approximately six inches.
The inlet device: pipe or
The pipe is clogged (if
Unclog the pipe. Dispose of the
swale
applicable).
sediment off -site.
The pipe is cracked or
Replace the pipe.
otherwise damaged (if
applicable).
Erosion is occurring in the
Regrade the swale if necessary to
swale (if applicable).
smooth it over and provide erosion
control devices such as reinforced
turf matting or riprap to avoid
future problems with erosion.
5

BMP element:
Potential problem:
How I will remediate the problem:
The forebay
Sediment has accumulated in
Search for the source of the
the forebay to a depth that
sediment and remedy the problem if
inhibits the forebay from
possible. Remove the sediment and
functioning well.
dispose of it in a location where it
will not cause impacts to streams or
the BMP.
Erosion has occurred.
Provide additional erosion
protection such as reinforced turf
matting or riprap if needed to
prevent future erosion problems.
Weeds are present.
Remove the weeds, preferably by
hand. If a pesticide is used, wipe it
on the plants rather than spraying.
The deep pool, shallow
Algal growth covers over
Consult a professional to remove
water and shallow land
50% of the deep pool and
and control the algal growth.
areas
shallow water areas.
Cattails, phragmites or other
Remove the plants by wiping them
invasive plants cover 50% of
with pesticide (do not spray) -
the deep pool and shallow
consult a professional.
water areas.
Shallow land remains flooded
Unclog the outlet device
more than 5 days after a
immediately.
storm event.
Plants are dead, diseased or
Determine the source of the
dying.
problem: soils, hydrology, disease,
etc. Remedy the problem and
replace plants. Provide a one -time
fertilizer application to establish the
ground cover if a soil test indicates
it is necessary.
Best professional practices
Prune according to best professional
show that pruning is needed
practices.
to maintain optimal plant
health.
Sediment has accumulated
Search for the source of the
and reduced the depth to 75%
sediment and remedy the problem if
of the original design depth
possible. Remove the sediment and
of the deep pools.
dispose of it in a location where it
will not cause impacts to streams or
the BMP.

BMP element:
Potential problem:
How I will remediate the problem:
The embankment
A tree has started to grow on
Consult a dam safety specialist to
the embankment.
remove the tree.
An annual inspection by an
Make all needed repairs.
appropriate professional
shows that the embankment
needs repair.
Evidence of muskrat or
Use traps to remove muskrats and
beaver activity is present.
consult a professional to remove
beavers.
The micropool
Sediment has accumulated
Search for the source of the
and reduced the depth to 75%
sediment and remedy the problem if
of the original design depth.
possible. Remove the sediment and
dispose of it in a location where it
will not cause impacts to streams or
the BMP.
Plants are growing in the
Remove the plants, preferably by
micropool.
hand. If a pesticide is used, wipe it
on the plants rather than spraying.
The outlet device
Clogging has occurred.
Clean out the outlet device. Dispose
of the sediment off -site.
The outlet device is damaged
Repair or replace the outlet device.
The receiving water
Erosion or other signs of
Contact the local authority.
damage have occurred at the
outlet.

BMP Location Plan

I acknowledge and agree by my signature below that I am responsible for the performance of the
maintenance procedures listed above. I agree to notify DWQ of any problems with the system or
prior to any changes to the system or responsible party.
Project name: South Garner High School
BMP drainage area number: BMP -2 Detention Wetland
Print name:
Title:
Address:
Phone:
Signature:
Date:
Note: The legally responsible party should not be a homeowners association unless more than 50% of the lots
have been sold and a resident of the subdivision has been named the president.
I, , a Notary Public for the State of
, County of , do hereby certify that
personally appeared before me this day of
, and acknowledge the due execution of the forgoing stormwater
wetland maintenance requirements. Witness my hand and official seal,
SEAL
My commission expires
0

BMP MAINTENANCE PLAN
BMP-3 DETENTION WETLAND
SOUTH GARNER HIGH SCHOOL
GARNER, NORTH CAROLINA
JANUARY, 2014
Prepared by:
CLH DESIGN, PA
CARY, NC

General BMP Maintenance Guidelines
Regularly inspect and maintain constructed Detention Wetland as described herein.
Preserving the structural integrity of the dam of a wetland BMP is important in protecting downstream
life and property. There are at least four aspects of the dam that require specific attention: 1. Assessment
of hazard potential due to changes in downstream development; 2. Seepage; 3. Dam material problems;
4. Vegetation growth on the dam embankments.
Assessment of Hazard Potential
As new development occurs downstream of the BMP, the chance of significant property damage or
danger to human life may increase if catastrophic failure of the dam occurs. Although the dam may be
initially exempt from regulation by the State, the owner is responsible for reporting to the County and
Dam Safety Office downstream development that may affect the hazard classification of the dam.
Seepage
The downstream side of the dam should be inspected regularly for evidence of significant seepage.
Seepage can emerge anywhere below the normal pool elevation, including the downstream slope of earth
dams, areas beyond the toe of the dam, and around the spillway or wetland outlet conduit. Indications of
significant seepage include areas where the soil is saturated or where there is a flowing "spring" or leak.
If "sinkholes" in the dam embankment are noticed, or if constant flowing water is noticed on the
downstream side of the dam, then seepage has become excessive and professional engineering advice
should be sought immediately to avert a major structural problem or a catastrophic failure of the dam.
Dam Material Problems
For earth dams, pronounced cracks on the embankment surface indicate the first stages of potential dam
failure. Transverse cracks (running perpendicular to the embankment face) generally indicating
differential settlement of the dam, can provide pathways for excessive seepage. Longitudinal cracks
(running parallel to the embankment face) may be due to inadequate compaction of the dam during
construction or shrinkage of the clay (desiccation) in the top of the embankment during prolonged dry
conditions. These cracks may eventually lead to slope failure such as sliding or sloughing.
For reinforced concrete dams, the concrete should be checked for pronounced cracking, leakage from the
joints, and displacement (noticeable leaning or bulging). Also, excessive seepage, leakage, or springs just
downstream of the concrete dam could be indicative of potential seepage- related "piping" problems under
the dam.
If such problems or other structural problems are observed, professional engineering advice should be
sought.
Vegetative Growth
Trees and other woody vegetation are not permitted on the top slopes or dam embankments. Large root
systems from woody vegetation can weaken the dam structure and provide seepage pathways. Thick
vegetative cover can also provide a haven for burrowing animals such as the groundhog. These animals
can create a network of burrows in the dam embankments that can significantly weaken the dam, by
creating seepage paths, which may eventually lead to dam failure. Mowing of the dam embankments
should occur, at a minimum, once every 6 months to prevent woody vegetation growth and cover for
burrowing animals.
Trash and vegetative floatables (grass clippings, leaves, limbs, etc.) should be cleaned from the wetland
surface and surroundings periodically to promote a healthy, aesthetically pleasing environment, and to
prevent blockage of the wetland outlets. Studies have shown that people are less likely to litter wetlands
that are aesthetically pleasing and support wildlife.
2

Detention Wetlands
Buffer Vegetation
Strong rooted grasses that have a high tolerance for erosion should be planted on embankments around
the wetland. Good grass cover should be maintained around the wetland perimeter to prevent excessive
sediment from entering the wetland. The following should be used as guidelines for maintaining buffer
vegetation.
To sustain the structural integrity of the dam, no trees or woody vegetation should be allowed on the dam
embankments or top of dam. These areas should be mowed on a quarterly basis.
To preserve the hydraulic capacity of the wetland system and to prevent runoff from backing up, inlet and
outlet areas should be kept clear of heavy vegetation.
To provide easy access to the wetland, the maintenance access around the wetland should be free of trees
and mowed on a periodic basis.
Trees and brush, if desired, are acceptable on wetland embankments other than the dam.
Erosion Problems
Unsuitable fill material, inadequate compaction, and/or poor stabilization of earth structures can result in
accelerated erosion where high runoff velocities exist. High velocities usually occur on steep wetland
embankments, at wetland inlet and outlet discharge areas, and where the water is constricted to channel
flow. The entire wetland area should be inspected quarterly for signs of erosion, paying special attention
to the following areas.
Embankments
If wetland embankments are not kept well vegetated with grasses, rill erosion (small channels formed in
the embankment due to poor grass cover) may occur. Rill erosion can be repaired by filling the small
channels with suitable soil, compacting, and seeding. If may be necessary to install temporary erosion
control (such as hay bales) along heavily eroded areas to allow the repaired areas to stabilize. It is
especially important to inspect for and immediately repair any erosion on the dam embankments.
Pipe Inlet and Outlet areas
Where erosion causes the undercutting of the downstream end of pipe, the undercut should be stabilized
immediately to prevent the end pipe section from "breaking" off. Eroded areas should be filled with good
compatible soil and covered with geotextile and riprap.
Open Channel Flow
Eroded areas should be seeded/sodded and protected with temporary velocity dissipation (such as
excelsior matting, straw bales, etc.) If erosion continues, a more robust lining should be used.
Blockage of Outlets
Detention wetlands are designed for the water to exit the wetland through the low flow orifice(s), the
principal spillway, and the emergency spillway. It is important to check all three outlets for blockage that
would impair the wetland" water quality and hydraulic functionality.
Low Flow Orifice(s)
Unless an inverted orifice is used, some type of trash guard is to be maintained over the low flow
orifice(s) to prevent clogging. When the orifice becomes clogged the water level rises to the principal
spillway elevation and the benefits associated with temporary storage and its gradual release are lost. To
G�

preserve "extended detention ": the low flow orifice should be inspected for blockage monthly and after
large storms.
Principal and Emergency Spillway
Principal and emergency spillways are designed to safely convey larger than one -inch storms that produce
runoff, which exceed the water quality volume of the BMP. IF these spillways are blocked so they do not
operate at full capacity, the risk of dam overtopping or other uncontrolled releases may result. To ensure
the hydraulic capacity of the spillways, the spillways should be inspected for blockage monthly and after
large storms.
If a riser/barrel is used for the principal spillway, a trash rack is to be maintained on the riser.
Vegetative growth in the riser should be removed promptly so that the design capacity of the spillway is
maintained. Also, the outlet area where the barrel projects from the fill should be clear of tree limbs,
sediment accumulation, etc.
Sediment Accumulation
To preserve the BMP's pollutant removal capability, sediment must be removed in areas where the
capacity of the design sediment storage volume has been exceeded.
The forebay and deep pool helps to improve the removal efficiency of the wetland system by trapping the
majority of coarser suspended solids behind the baffle. When sediment deposition in the forebay and
deep pool exceeds the designed sediment storage capacity, the forebay and deep pool must be dredged.
An indication of when the forebay and deep pool sediment capacity is exceeded is when sediment bars are
visible near the inlet discharge or when the sediment level at the inlet to the wetland is less than one foot
below the normal pool surface (the elevation of the pool is at the bottom of the low flow orifice).
Typically, forebays and deep pools will need to be dredged every 5 to 10 years.
Depth measurements relative to the normal surface elevation (bottom of water quality orifice) should be
taken at several locations around the wetland. The sediment is to be removed when the measured depth is
less than the design permanent pool depth. If a forebay is sued at the inlet area of the wetland and is
regularly dredged, the frequency of dredging the entire wetland could be greatly reduced.
M

Stormwater Wetland Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a log in
a known set location. Any deficient BMP elements noted in the inspection will be corrected,
repaired or replaced immediately. These deficiencies can affect the integrity of structures,
safety of the public, and the removal efficiency of the BMP.
Important maintenance procedures:
— Immediately after the stormwater wetland is established, the wetland plants will be
watered twice weekly if needed until the plants become established (commonly six
weeks).
— No portion of the stormwater wetland will be fertilized after the first initial fertilization
that is required to establish the wetland plants.
— Stable groundcover will be maintained in the drainage area to reduce the sediment load
to the wet detention basin.
— Once a year, a dam safety expert will inspect the embankment.
After the wet detention pond is established, I will inspect it once a month and within 24 hours
after every storm event greater than 1.0 inches. Records of operation and maintenance will be
kept in a known set location and will be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall be
repaired immediately.
BMP element:
Potential problem:
How I will remediate the problem:
The entire BMP
Trash /debris is present.
Remove the trash /debris.
The perimeter of the
Areas of bare soil and /or
Regrade the soil if necessary to
wetland
erosive gullies have formed.
remove the gully, and then plant a
ground cover and water until it is
established. Provide lime and a
one -time fertilizer application.
Vegetation is too short or too
Maintain vegetation at a height of
long.
approximately six inches.
The inlet device: pipe or
The pipe is clogged (if
Unclog the pipe. Dispose of the
swale
applicable).
sediment off -site.
The pipe is cracked or
Replace the pipe.
otherwise damaged (if
applicable).
Erosion is occurring in the
Regrade the swale if necessary to
swale (if applicable).
smooth it over and provide erosion
control devices such as reinforced
turf matting or riprap to avoid
future problems with erosion.
5

BMP element:
Potential problem:
How I will remediate the problem:
The forebay
Sediment has accumulated in
Search for the source of the
the forebay to a depth that
sediment and remedy the problem if
inhibits the forebay from
possible. Remove the sediment and
functioning well.
dispose of it in a location where it
will not cause impacts to streams or
the BMP.
Erosion has occurred.
Provide additional erosion
protection such as reinforced turf
matting or riprap if needed to
prevent future erosion problems.
Weeds are present.
Remove the weeds, preferably by
hand. If a pesticide is used, wipe it
on the plants rather than spraying.
The deep pool, shallow
Algal growth covers over
Consult a professional to remove
water and shallow land
50% of the deep pool and
and control the algal growth.
areas
shallow water areas.
Cattails, phragmites or other
Remove the plants by wiping them
invasive plants cover 50% of
with pesticide (do not spray) -
the deep pool and shallow
consult a professional.
water areas.
Shallow land remains flooded
Unclog the outlet device
more than 5 days after a
immediately.
storm event.
Plants are dead, diseased or
Determine the source of the
dying.
problem: soils, hydrology, disease,
etc. Remedy the problem and
replace plants. Provide a one -time
fertilizer application to establish the
ground cover if a soil test indicates
it is necessary.
Best professional practices
Prune according to best professional
show that pruning is needed
practices.
to maintain optimal plant
health.
Sediment has accumulated
Search for the source of the
and reduced the depth to 75%
sediment and remedy the problem if
of the original design depth
possible. Remove the sediment and
of the deep pools.
dispose of it in a location where it
will not cause impacts to streams or
the BMP.

BMP element:
Potential problem:
How I will remediate the problem:
The embankment
A tree has started to grow on
Consult a dam safety specialist to
the embankment.
remove the tree.
An annual inspection by an
Make all needed repairs.
appropriate professional
shows that the embankment
needs repair.
Evidence of muskrat or
Use traps to remove muskrats and
beaver activity is present.
consult a professional to remove
beavers.
The micropool
Sediment has accumulated
Search for the source of the
and reduced the depth to 75%
sediment and remedy the problem if
of the original design depth.
possible. Remove the sediment and
dispose of it in a location where it
will not cause impacts to streams or
the BMP.
Plants are growing in the
Remove the plants, preferably by
micropool.
hand. If a pesticide is used, wipe it
on the plants rather than spraying.
The outlet device
Clogging has occurred.
Clean out the outlet device. Dispose
of the sediment off -site.
The outlet device is damaged
Repair or replace the outlet device.
The receiving water
Erosion or other signs of
Contact the local authority.
damage have occurred at the
outlet.

p
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BMP Location Plan
m
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I
0

I acknowledge and agree by my signature below that I am responsible for the performance of the
maintenance procedures listed above. I agree to notify DWQ of any problems with the system or
prior to any changes to the system or responsible party.
Project name: South Garner High School
BMP drainage area number: BMP -3 Detention Wetland
Print name:
Title:
Address:
Phone:
Signature:
Date:
Note: The legally responsible party should not be a homeowners association unless more than 50% of the lots
have been sold and a resident of the subdivision has been named the president.
I, , a Notary Public for the State of
, County of , do hereby certify that
personally appeared before me this day of
, and acknowledge the due execution of the forgoing stormwater
wetland maintenance requirements. Witness my hand and official seal,
SEAL
My commission expires
0

�P OF CqA,
0
\RTERE� 19
March 25, 2014
CLH Design, P.A.
400 Regency Forest Drive
Cary, NC 27518
Town of Garner
900 7th Avenue • Garner, North Carolina 27529
Phone [phone] • Fax [phone] • www.GarnerNC.gov
RE: Conditional Use Permit, CUP- SP -13 -15
Conditional Use Rezoning, CUD- Z -13 -06
To Whom It May Concern:
At its meeting on March 18, 2014 the Garner Town Council approved the above referenced requests.
The Conditional Use Permit application, CUP- SP- 13 -15, is approved with the conditions listed on
the attached copy of your permit. This permit is valid for two years from the approval date.
If you have any questions, please feel free to call the Planning Department at 919 - 773 -4449.
Sincerely,
Judy Bass
Town Clerk
cc: Brad Bass
Jenny Saldi
Sandy Teal
Tony Chalk
Jennifer Sjaardema, Wake County
Tim Wilkins, BellSouth Communications
Enclosure

TOWN OF GARNER
CUP- SP -13 -15
CONDITIONAL USE PERMIT
APPLICANT
CLH Design, P.A.
400 Regency Forest Drive
Cary, NC 27518
8228 Hebron Church Road
LOCATION
Garner, NC 27529
USE
High School
DATE ISSUED
March 18, 2014
COMPLETENESS OF APPLICATION
The application is complete.
COMPLIANCE WITH ORDINANCE REQUIREMENTS
The application complies with all applicable requirements of the Unified Development Ordinance including
Section 3.14E Special use review criteria.
III. GRANTING THE APPLICATION
The application is granted, subject to the following conditions:
1) The applicant shall complete the development strictly in accordance with the plans submitted to
and approved by this Town Council, a copy of which is filed in the Town Hall. Any deviations from
or changes in these plans must be pointed out specifically to the administrator in writing and
specific written approval obtained as provided in the Unified Development Ordinance.
2) If any of the conditions affixed hereto or any part thereof shall be held invalid or void, then this
permit shall be void and of no effect.
3) All applicable permit approvals shall be obtained by the applicant.
IV. SPECIFIC TO THE PROJECT
1) A recombination plat must be recorded prior to building permit issuance.
2) Prior to issuance of a building permit, the document recorded with Wake County stating the
relocation of the onsite graves has been completed shall be submitted to the Town of Garner.
3) Required street lighting along Hebron Church Road, New Bethel Church Road and Clifford Road
shall be installed and be operational prior to the issuance of a Certificate of Occupancy for the
building.
4) The Wake County Public School System shall monitor the intersection of White Oak Road and
Hebron Church Road, and Ackerman Road and Hebron Church Road as recommended by
NCDOT when full enrollment occurs at South Garner High School which is expected to be four to
five years after initial opening. If either or both intersections meet traffic signal warrants at that
time, the Wake County Public School System shall be responsible for the installation of the
signal in accordance with NCDOT and Town of Garner requirements. The Wake County Public
School System and the Town of Garner will equally share the costs of the signal installation at

the intersection of Ackerman and Hebron Church Road.
5) A six (6) foot vinyl chain link fence 600 feet long shall be installed along the western property
line adjoining a residential property or service drive beginning at the right -of -way with New
Bethel Church Road in a manner with the least amount of impact on the existing vegetation and
approved by Town Staff.
6) The radi at Hebron Church Road and Clifford shall be reevaluated to assure compliance with
N.C. Department of Transportation and Town of Garner standards in order to accommodate bus
traffic
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