Replace gradual street narrow with 90-degree cut - fill with asphalt
Belmont Dr narrows (east-west) with a 90-degree cut just east of the intersection with Vermont, rather than with a gradual angling of the lawn.
The sidewalk should end in a 90-degree angle matching the eastward extent of the sidewalk on the other side of Belmont. Belmont does not gradually narrow, but rather features this 90-degree widening of the asphalt after the end of the sidewalk.