HomeMy WebLinkAboutResponse to staff comments EAST TEXAS OFFICE
1 [936] 637 -4900
G • L
J GOODWIN • LASITER, INC. FAX [936] 637-6330
ENGINEERS • ARCHITECTS •SURVEYORS CENTRAL TEXAS OFFICE
(979] 696 -6767
FAX [979] 696 -2685
City of College Station September 23, 2011
Public Works Department
P.O. Box 9960
College Station, Texas 77842
Attn: Joshua D. Norton, P.E., CFM, Assistant City Engineer
Development Permit Application Checklist
Applicability: This SOP applies to any development which infringes into the floodplain fringe. This SOP does not
authorize or address infringing into the floodway.
i - A comprehensive site plan will be required prior to issuance of a development permit to clear and /or fill on
this site - as per the Ch. 13 Flood Hazard Protection Ordinance, Section 4.E:
"(4) The compatibility of the proposed use with existing and anticipated development;
(9) The relationship of the proposed use to the comprehensive site plan for that area."
"Comprehensive" further underscores the requirement of the site plan to be complete meeting all
requirements of the UDO and those outlined on the application. Note that an individual single family lot
may provide a lot layout with building footprint, driveway, etc. to satisfy the site plan requirement in lieu of
a complete building permit application.
• Refer to Site Plan
Applicant must submit a Development Permit Application and fees. Special attention should be given to
the Engineer's Certifications associated with the floodplain and floodway.
• See attached application
Applicant must submit an Engineer's or Surveyors' topographical map depicting:
• the current floodplain and if applicable, the floodway on the site
• limits of proposed fill area within the floodplain and if applicable, center line of the floodway
• Refer to Site Plan
pplicant must submit a grading plan with pre - grading contours, post - grading contours, and depiction of
limits of proposed fill area.
• Refer to Site Plan
. Applicant must submit an Erosion Control Plan describing and depicting pre and post construction erosion
control measures protecting the adjacent properties, especially the adjacent floodplain and floodway.
• Refer to plan sheet Notes 1 & 2 regarding erosion control. Note that silt fence shall be used
during construction.
v ET V-
pplicant must submit proposed minimum finished floor elevation based on the Base Flood Elevation
(BFE) from the current Flood Insurance Study (BFE depicted on the Flood Rate Insurance Map (FIRM) is
not acceptable). Minimum finished floor will be established in accordance with the standards set forth in
the Unified Storm Water Design Guidelines, Section IX, Appendix B, and Table B -2 Minimum Floor
Elevations along Selected Named Regulatory Watercourses.
1609 S. CHESTNUT • SUITE 202 •LUFKIN, TEXAS • 75901 • admin@qoodwinlasiter.com TBPE #413
3600 ST. HIGHWAY 6 S. • SUITE 102 • COLLEGE STATION, TEXAS • 77845 • ctex @goodwinlesiter.com 4. -
W. 169816980371Corres1698037 .LTR.001.doc `` C i 'al
41:23-04
Development Permit Checklist
September 23, 2011 Page 2 of 2
• Finished floor elevations for both the pool deck and equipment pad have been set more than
12" above Base Flood Elevation of 245.
Applicant must demonstrate that fill in the floodplain is "reasonably safe from flooding." Adequate
compaction efforts are required to ensure fill does not erode or sink. FEMA Technical Bulletin (TB) 10 -01
provides example guidance and an Engineer's Certification of Compaction of fill. Note that:
A. If applicant is planning to apply for a LOMR -F, an Engineer's Certification of Compaction of fill in
accordance with FEMA TB 10 -01 will be required.
B. For Building Permits with foundation beams that do not extend into the natural soil a minimum of 6
inches the requirement will include either Engineer's Certification of Compaction of fill to 95%
Standard Proctor (ASTM D 698) between ± 2 of optimum moisture content, or an Engineered Slab
Plan.
• Refer to plan sheet Notes 3, 4 & 5 which refer to placement of fill. Additionally, the pool deck
perimeter wall, who's foundation extends a minimum of 8" into natural ground, has been
designed as a stand -alone retaining wall.
._-8' Applicant must submit FEMA Form 81 -31 Elevation Certificate (only for buildings that encroach in to the
Special Flood Hazard Area) during the construction phase prior to pouring the minimum finished floor
(Building Under Construction).
I> Refer to plan sheet Note 6 requiring an Elevation Certificate during construction phase.
Applicant must submit FEMA Form 81 -31 Elevation Certificate after completion of the building (Finished
Construction). The finished construction elevation certificate must be completed in accordance FEMA
Form 81 -31 Instructions and approved by the City Engineer before a Certificate of Occupancy will be
issued.
• Refer to plan sheet Note 7 requiring Elevation Certificate post construction prior to
occupancy.
shad Emmel, P.E.
Project Engineer
1609 S. CHESTNUT • SUITE 202 •LUFKIN, TEXAS • 75901 • admin@goodwinlesiter.com TBPE #41 3
3600 ST. HIGHWAY 6 S. • SUITE 102 • COLLEGE STATION, TEXAS • 77845 • ctex@qoodwinlasiter.com
W 169816980371Corres1698037. LTR.001.doc
EAST TEXAS OFFICE
[936] 637 -4900
G N I GOODWIN • LASITER, INC. FAX [936] 637-6330
ENGINEERS • ARCHITECTS ■SURVEYORS CENTRAL TEXAS OFFICE
J
[979] 696 -6767
FAX [979] 696 -2685
City of College Station September 27, 2011
Public Works Department
P.O. Box 9960
College Station, Texas 77842
Attn: Joshua D. Norton, P.E., CFM, Assistant City Engineer
Development Permit Application Checklist
1. Please identify the location of the adjacent existing sanitary sewer main, our records indicate
that the line is a 21 inch VCP sanitary sewer main, built in 1982.
The adjacent existing sanitary sewer main has been located and illustrated. Reference the
attached revised site plan.
2. Please remove the retaining from the existing utility easement. Limited grading and paving is
allowed within the easement, but a maximum 4:1 slope must be maintained.
The proposed retaining wall has been removed and the maximum 4:1 slope maintained.
Reference the attached revised site plan.
3. The property owner needs to be aware of the aging sanitary sewer main located adjacent to the
subject project and the fact that it will likely need to be replaced by the City in the coming years.
Please provide a note on the plans stating that the property owner is responsible for replacing
any paving located in the utility easement in the case that the City or City's contractor
must remove such improvements in order to access the subject sanitary sewer main.
Refer to Note 8 on the attached site plan.
4. In addition, once you have established the sanitary sewer main location, please take into
account the future trenching that would be needed to access the subject main, when
considering your adjacent retaining wall design.
With the removal of the previously proposed retaining wall, only the pool deck paving, within
the sewer easement, would be subject to possible trenching activities by future sewer line
replacement.
Chad Emmel, P.E.
Project Engineer
1609 S. CHESTNUT • SUITE 202 •LUFKIN, TEXAS • 75901 • admin @goodwinlasiter.com TBPE #413 9)'1
3600 ST. HIGHWAY 6 S. • SUITE 102 • COLLEGE STATION, TEXAS • 77845 • ctex @goodwinlasiter.com
W 169816980371Corres1698037. LTR.002.doc