TFMA 2007 TFMA 2007 Freeboard SurveyFreeboard Survey

Special AcknowledgementSpecial AcknowledgementTo To

Charlie Hastings PE, CFM, who initiated the Charlie Hastings PE, CFM, who initiated the 2004 Survey and TFMA members that participated 2004 Survey and TFMA members that participated

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““Work in Progress”Work in Progress”

John Ivey, PE, CFM – Halff AssociatesJohn Ivey, PE, CFM – Halff Associates Lochen Wood, CFM – LCRALochen Wood, CFM – LCRA Roy Sedwick, CFM – TFMA/LCRARoy Sedwick, CFM – TFMA/LCRA

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QuestionnaireQuestionnaire

Zone AE/VE - New construction must be Zone AE/VE - New construction must be elevated ___ feet above BFE as shown on elevated ___ feet above BFE as shown on FIRM.FIRM.

Zone AE/VE - New construction must be Zone AE/VE - New construction must be elevated ___ feet above BFE determined elevated ___ feet above BFE determined by a study based on fully developed by a study based on fully developed watershed (future conditions)watershed (future conditions)

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Master Drainage Plan (MDP) developed for Master Drainage Plan (MDP) developed for areas in and around the community using fully areas in and around the community using fully developed conditions, for areas the FIRM developed conditions, for areas the FIRM doesn't address. doesn't address.

Are Developers required to use the MDP BFE.Are Developers required to use the MDP BFE. Zone A (un-numbered) - Developer must Zone A (un-numbered) - Developer must

conduct a study to define the BFE. If conduct a study to define the BFE. If development is greater than 50 lots or 5 Acres, development is greater than 50 lots or 5 Acres, whichever is the lesser. [60.3(b)(3)] Zone A (un-whichever is the lesser. [60.3(b)(3)] Zone A (un-numbered)numbered)

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Developer must conduct a study to define Developer must conduct a study to define the floodway boundary based on existing the floodway boundary based on existing conditions.conditions.

Zone A (un-numbered) - Developer must Zone A (un-numbered) - Developer must conduct a study to define the floodway conduct a study to define the floodway boundary based on fully developed boundary based on fully developed watershed (future conditions)watershed (future conditions)

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Floodway - no development allowed within Floodway - no development allowed within ___ feet from the floodway boundary.___ feet from the floodway boundary.

No fill is allowed in the floodway or No fill is allowed in the floodway or floodplain without mitigation (No adverse floodplain without mitigation (No adverse impact).impact).

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Coastal (Zone VE) RequirementsCoastal (Zone VE) Requirements

V/VE Zone - New construction within Zone V/VE Zone - New construction within Zone AE that is within ___ feet of the VE Zone AE that is within ___ feet of the VE Zone boundary must be constructed to V Zone boundary must be constructed to V Zone requirements. (Setback)requirements. (Setback)

V/VE Zone requirements to elevate __ feet V/VE Zone requirements to elevate __ feet above the BFEabove the BFE

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Requirements in Zones B, C & XRequirements in Zones B, C & X

Zone X (Shaded) - New construction must Zone X (Shaded) - New construction must be elevated ___ feet above natural grade be elevated ___ feet above natural grade or above the crown of the nearest street.or above the crown of the nearest street.

Zone X (Unshaded) - New construction Zone X (Unshaded) - New construction must be elevated ___ feet above natural must be elevated ___ feet above natural grade or the crown of the nearest street.grade or the crown of the nearest street.

(Note – Friendswood requires +24” in X (Note – Friendswood requires +24” in X shaded and +18” in X unshaded)shaded and +18” in X unshaded)

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Elevation CertificatesElevation Certificates

Elevation Certificate Requirements - Elevation Certificate Requirements - (1) Submitted with initial permit application. (1) Submitted with initial permit application.

Y/NY/N (2) Submitted prior to forming/pouring lowest (2) Submitted prior to forming/pouring lowest

floor. Yfloor. Y/N/N (3) Submitted when structure is completed. (3) Submitted when structure is completed.

Y/NY/N (4) Required prior to issuing a CO. (4) Required prior to issuing a CO. Y/NY/N

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Community Rating SystemCommunity Rating System

Is your community enrolled in CRS? Is your community enrolled in CRS? Yes/NoYes/No

Current CRS Rating ___Current CRS Rating ___ CRS Goal: ___CRS Goal: ___ How many CFM’s does your How many CFM’s does your

community have on staff? ___community have on staff? ___

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Other RequirementsOther Requirements Detention (on site and/or regional)Detention (on site and/or regional) Setbacks from FP and/or FW boundariesSetbacks from FP and/or FW boundaries CLOMR required before permit issuedCLOMR required before permit issued No development in floodwayNo development in floodway No development in floodplainNo development in floodplain No Adverse ImpactNo Adverse Impact Additional Wetland/wildlife requirementsAdditional Wetland/wildlife requirements Floodplain must be open spaceFloodplain must be open space Drainage easements must be dedicated to CityDrainage easements must be dedicated to City Other….Other….

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23, 18%

12, 9%

96, 73%

+1 or HigherFreeboard

+1 or Higher(Fully-DevelopedConditions)

In Process ofAdopting

2006 Survey Results2006 Survey Results

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Thank you for participating!Thank you for participating!

Contact John Ivey at Contact John Ivey at jivey@halff.comjivey@halff.com

for copiesfor copies