Steep Existing Grades: Existing grade may be too steep or grade separations too great to comply
with the maximum slopes. A curb ramp should not exceed 15 feet to meet the maximum 8.3% slope
requirements. If a compliant ramp cannot be furnished with the available space, a ramp with the
minimum practical slope should be installed.
Right of Way: If adequate public right‐of‐way cannot be acquired, permission to access private
property is not granted by a property owner to construct a facility, or if acquiring property is outside
the scope of the project, it may not be possible to achieve full compliance.
Drainage: Standing or frozen water can make a facility inaccessible, unsafe and prone to faster
deterioration. If the maximum compliant slope of a curb ramp is not adequate to drain in certain
conditions or will impede the drainage of an area, a slope exceeding the maximum may be
necessary. If building a fully compliant ramp necessitates moving a closed drainage structure and it
is beyond the project scope it should be noted.
Other: There may be unique situations found that should be noted. Please refer to above definitions
as much as possible.
CURB RAMP NON-COMPLIANCE CHECK LIST
The Curb Ramp Non-Compliance Check List contains curb ramp elements that require compliance,
the ADA or MaineDOT Standards that determine compliance and the proposed level of compliance
that should reflect the level that was achieved to the maximum extent feasible. For example, if a
counter slope could only be reduced to a 6% slope than the proposed level of compliance should
state the level that was achieved (6%). The ramp may have more than one element that is not
If the curb ramp cannot be made compliant within the scope of the project, but should and could be
made compliant in future projects, it should be on the MaineDOT ADA Transition Plan to be made
compliant in the future. Check the first check box. For instance, if the project scope was a CPR and
a curb ramp could have been made compliant with right-of-way acquisition it will need to be
addressed in the future.
If the constraint(s) causing the facility to be noncompliant are not a condition of project scope, and
cannot be made compliant in the foreseeable future, check the second box. For example, if a curb
ramp's running slope exceeds the maximum compliant slope because there is inadequate space
between the curb and a building, the constraint is unlikely to change in the foreseeable future.
If an element does not meet ADA minimum standards, submit an ADA Statement of Technical
Infeasibility request to the appropriate Program Manager or Region Engineer and the Title II ADA
Coordinator. Approval may be granted at the program level, by region or forwarded to the
Engineering Council for further review. A completed and approved form should be sent to the ADA