HomeMy WebLinkAboutFEMA Building 2002-10-3
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225 5th STREET, SPRINGFIELD, OR 97477
Estimated Base Flood Elevation & Disclaimer
The calculated Base Flood Elevation (BFE) for lot# 2, Levi Landing -
Second Addition is.s7l9, 1- feet above mean sea level, based on the current
FEMA datum information. The floor level of the residence to be placed on
the lot must be certified at least one foot above the Base Flood Elevation as
indicated above. (Please note - the City's surveyed benchmark datum information and
the FEMA benchmark datum are not the same for this area. Add 0.30jt to the City's
benchmarks to adjust to the FEMA benchmark elevations. )
The estimated base flood elevations in this area are based on interpretation
of scientific and engineering evaluations known to the city at this time.
Larger floods can and will occur on rare occasions. Flood heights may be
increased by human-made or natural causes. The City's estimation of a
base flood elevation does not imply that land within this area will be free
from flooding or flood damages or that conformance with the requirements
of the City will protect the property from flooding or flood damages.
The City, its officers, agents and employees shall not be liable for any flood
damage that may result from estimation of base flood elevation or any other
administrative decision made regarding administration of the City's
Floodplain Development Code. The developer of this property may elect to
perform additional scientific and engineering studies for consideration by
the City to further refine the estimated base flood elevation for this property.
The developer of this property may also elect to undertake additional
development and construction measures in addition to those required in
article 27 of the Springfield Development Code designed to avoid or
minimize the potential for flood hazards and damage. Such additional
measures are subject to City approval.
Acknowledgment:
I hereby acknowledge receipt of a copy of this document:
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(541) 726-3753
(541) 726-3676(FAX)
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~: Notice of Special Flood Hazard & Fill
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Levi Landing - Second Addition
Address /';'05<; ~L) W, Lot#.23 Permit# l'2 - t2j}ZlJ -D/
I. Based on the storm drainage study prepared by EGR & Associates in Feb. 1999, and
submitted by the property owner during subdivision review procedures, the site is
within an area of special flood hazard identified by the City Engineer in accordance with
SDC 27.0 I 0(2)(b). A few of the lots on the north and east boundary of the subdivision
are also within the established FEMA flood zone area (FIRM Map). The area of special
flood hazard includes the "calculated base flood elevation" for the subdivision that
~upersedes the FEMA map information. The City has, and will continue to require flood
protection measures of SDC Article 27 and Federal Emergency Management Agency
(FEMA) guidelines during subdivision and building procedures. In order to do so,
buildings must have the first floor level located at least one foot above the calculated
base flood elevation (BFE) for the site.
2. An Elevation Certificate (form and instructions attached) documenting the floor
elevation of the residence must be completed for each lot in the subdivision and signed
by a licensed surveyor, or professional architect or engineer who is authorized by law to
certify elevation information. The completed certificate must be kept by the property
owner. A copy of the completed certificate must be submitted to this office for our
records prior to completing the framing stage of construction. Framing insoections will
not be aporoved by the City inspectors until the required certificate has been
submitted.
3. In accordance with the subdivision conditions of approval, the developer has
submitted surveyed information demonstrating that most of the building
pads have been filled to an elevation at or above the calculated base flood
elevation. The lots have been filled with compacted native soil materials (in some
cases up to 2 feet). Although the fill material has been placed to a level near the
calculated base flood level for the lot, the grade is lower than the designed finish grade
for the subdivision lots. Additional imported fill will be necessary to raise the lot
elevation sufficiently to enable surface water on the entire lot to drain to the street
andlor, in some instances, to the no-build flood area adjacent to the building site.
4. The soils report for this subdivision has recommended that the building areas within the
filled lots be evaluated for type of backfill materials, and possible deterioration of the
site condition due to wet weather conditions or additional backfill materials.
Verification of the compaction for excavations or fills within the building area will be
necessary, in accordance with the approved soils report for the subdivision. Specific
approval by a licensed engineer or architect is required for each site excavation or fill.
Documented evidence, by a special inspection agency, using proof roll, or other
acceptable method, for the compacted area is also acceptable. Please provide this
office with a copy of the report for the building pad prior to requesting foundation
inspections.
5. Please be aware that the FEMA policy regarding foundation crawl spaces for properties
in flood zones where flood insurance is necessary or desired, is that the grade of the
enclosed crawl space under the building must be at or above the BFE for the property
to be considered for reduced insurance rates. This means that buildings having
traditional crawl spaces could be penalized when insurance rates are determined if the
base grade is below the BFE. The property owner or builder may wish to
compare insurance rates before the base grade of the crawl space is
established.
Rev. OS/22/02