Airport Master Plan - City of Riverside

The 2027 forecast noise contours are depicted on the lower half of Exhibit C3. The
65 CNEL extends beyond airport property in several locations including very
slightly to the north of Runway 16 and to the southwest of Runway 9. These areas
are currently roads or existing industrial development and are therefore compatible
with the 65 CNEL.
To the northeast of the planned runway extension the 65 CNEL extends beyond
airport property over some vacant property and over a portion of a landscaping nursery
business. These uses are compatible with the 65 CNEL. The 70 CNEL extends
to the northeast property line and may extend a few feet onto the same private
property.
To the southeast of the planned runway extension both the 65 and 70 CNEL extend
beyond airport property. Approximately eight residential dwelling units are impacted
by the 70 CNEL. Approximately 30 residential dwelling units are impacted
by the 65 CNEL in this area.
CONSTRUCTION IMPACTS
Construction impacts typically relate to the effects on specific impact categories,
such as air quality or noise during construction. The use of best management practices
(BMPs) during construction is typically a requirement of construction-related
permits such as a National Pollutant Discharge Elimination System (NPDES) permit.
Use of these measures typically alleviates potential resource impacts.
Short-term construction-related noise impacts could occur with implementation of
the proposed project as there are scattered residences in the vicinity. However,
these impacts typically do not arise unless construction is being undertaken during
early morning, evening, or nighttime hours. Furthermore, the proposed projects
will be undertaken on a demand basis and will not be constructed simultaneously.
Construction-related air quality impacts can be expected. Air emissions related to
construction activities will be short-term in nature and will be included in the air
emissions inventory, if one is requested.
DEPARTMENT OF TRANSPORTATION:
SECTION 4(f)
Section 4(f) of the DOT Act, which was recodified and renumbered as Section 303(c)
of 49 USC, provides that the Secretary of Transportation will not approve any program
or project that requires the use of any publicly owned land from historic sites,
public parks, recreation areas, or waterfowl and wildlife refuges of national, state,
regional, or local importance unless there is no feasible and prudent alternative to
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