ii. overview of regulations
DESCRIPTION
II. Overview Of Regulations. A.Federal Emergency Management Agency (FEMA): 1. Background The United States Congress passed the National Flood Insurance Act of 1968 and was enacted by Title XIII of the Housing and Urban Development - PowerPoint PPT PresentationTRANSCRIPT
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II. Overview Of Regulations A.Federal Emergency Management Agency
(FEMA):1. Background
The United States Congress passed the National Flood Insurance Act of 1968 and was enacted by Title XIII of the Housing and Urban Development
Purpose was to provide relief for individuals with property in flood-prone areas, provide flood protection insurance and to begin to develop uniform standards for floodplain management.
To qualify for the sale of federally-subsidized flood insurance a community must adopt and submit to the Administrator as part of its application, floodplain management regulations, satisfying at a minimum the criteria designed to reduce or avoid future flood, mudslide (i.e., mudflow) or flood-related erosion damages. These regulations must include effective enforcement provisions.
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(CONTINUED)
II. Overview Of Regulations A.FEMA:
2. FIRM – Flood Insurance Rate MapsFlood Insurance Rate Maps
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(CONTINUED)
II. Overview Of Regulations
A.FEMA:2. FIRM – Flood Insurance
Rate Maps (CONTINUED)
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II. Overview Of Regulations
A.FEMA:2. FIRM – Flood Insurance
Rate Maps (CONTINUED)
Flood Boundary and Floodway Maps
(CONTINUED)
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II. Overview Of Regulations
A.FEMA:Floodways vs. Floodplains
Floodway hypothetical zone within floodplain equal encroachment on both sides of floodplain resulting in a one ft.
increase in flow depths FEMA requires communities to maintain floodways through proper
floodplain management
(CONTINUED)
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II. Overview Of Regulations A.FEMA:
2. FIRM – Flood Insurance Rate Maps (CONTINUED)
Floodway Delineation
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II. Overview Of Regulations
A.FEMA:2. FIRM – Flood
Insurance Rate Maps (CONTINUED)
Floodway Delineation
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II. Overview Of Regulations
A.FEMA:3. FIS – Flood
Insurance Studies
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II. Overview Of Regulations
A.FEMA:3. FIS– Flood
Insurance Studies
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II. Overview Of Regulations
A.FEMA:6. FEMA Map Revisions –
LOMR/LOMA/CLOMRa) Letter of Map Revision (LOMR)
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II. Overview Of Regulations
A.FEMA:6. FEMA Map Revisions –
LOMR/LOMA/CLOMRa) LOMR
b) Letter of Map Amendment (LOMA)
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II. Overview Of Regulations
A.FEMA:6. FEMA Map Revisions –
LOMR/LOMA/CLOMRa) LOMR
b) LOMA
c) Conditional Letter of Map Revision (CLOMR)
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II. Overview Of Regulations
A.FEMA:6. FEMA Map Revisions –
LOMR/LOMA/CLOMRa) LOMR
b) LOMA
c) CLOMR
d) FEMA Coordination Process and Timing
[Handout p. 2-22 of TXDOT-02]
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II. Overview Of Regulations
A.FEMA:6. FEMA Map Revisions –
LOMR/LOMA/CLOMRa) LOMR
b) LOMA
c) CLOMR
d) FEMA Coordination Process and Timing
[Handout p. 2-22 of TXDOT-02]
e) FEES
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II. Overview Of Regulations
A.FEMA:6. FEMA Map
Revisions – LOMR/LOMA/CLOMRe) FEES
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A.FEMA:7. Multiple Profiles
Storm Frequency 10-year, 50-year, 500-year
(CONTINUED)
II. Overview Of Regulations
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Multiple Profile Example
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II. Overview Of Regulations
B.FHWA:1. 23 CFR 650a
Part 650: Bridges, Structures, and HydraulicsSubpart A: Location and Hydraulic Design of
Encroachments on FloodplainsPurpose: To prescribe Federal Highway
Administration (FHWA) policies and procedures for the location and hydraulic design of highway encroachments on flood plains, including direct Federal Highway projects administered by the FHWA.
(CONTINUED)
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II. Overview Of Regulations B.FHWA:
1. 23 CFR 650a (CONTINUED)
Goals: To encourage a broad and unified effort to prevent
uneconomic hazardous or incompatible use and development of the Nation’s floodplains
To avoid longitudinal encroachments, where practicable, To avoid significant encroachments,where practicable, To minimize impacts of highway agency actions which
adversely affect base flood plains
(CONTINUED)
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II. Overview Of RegulationsB.FHWA:
1. 23 CFR 650aGoals: (CONTINUED)
To restore and preserve the natural and beneficial floodplain values that are adversely impacted by highway agency actions
To avoid support of incompatible floodplain development To be consistent with the intent of the Standards and
Criteria of the National Flood Insurance Program To incorporate “A Unified National Program for Floodplain
Management” of the Water Resources Council into FHWA procedures
(CONTINUED)
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II. Overview Of Regulations
B.FHWA:1. 23 CFR 650a
Application: Applies to all actions affecting the base floodplain,
except for repairs made with emergency funds Does NOT apply to approvals or authorizations
given before adoption of this regulation
(CONTINUED)
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II. Overview Of Regulations B.FHWA:
2. Location Hydraulic StudiesMust evaluate alternatives for longitudinal encroachmentDiscussion must include the following for each
alternative developed: associated risks impacts on natural and beneficial floodplain development support of probable incompatible floodplain development measures to minimize impacts measure to restore and preserve floodplain value consultation with Local, State, and Federal water resource and
floodplain management agencies
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II. Overview Of Regulations
C.State and Local Regulations:1. State Regulations and Guidance
LOMR/CLOMRState StandardsADOT Manuals
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II. Overview Of Regulations
C.State and Local Regulations:2. Local Regulations
Local Community Approves LOMR/CLOMRConsult with Local Floodplain ManagementFloodplain Ordinance and Drainage Design
Criteria
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2. Local Regulations Floodplain Use Permit
“Except as otherwise provided in these regulations, it shall be unlawful for any person to establish, erect, alter or relocate a use or structure in the regulatory floodplain or an erosion-prone area…without first obtaining a floodplain use permit from the city engineer”
II. Overview Of Regulations
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II. Overview Of Regulations
D.Environmental Permits:1. US Army Corps of Engineers (USACE)
404-permitsOrdinary High Water Mark (OHWM)
Line on shore established by water fluctuation Seen by shelving, vegetation, and debris line on
bank
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II. Overview Of Regulations D.Environmental Permits:
1. USACE 404Ordinary High Water Mark
May contain sandbars or shelves Dredge/Fill below high water mark is regulated by
the Clean Water Act
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II. Overview Of Regulations
D.Environmental Permits:2. USEPA
a) NPDES, SWPPP
and BMPs National Pollution Discharge
Elimination System (NPDES)
Stormwater Pollution
Prevention Plans (SWPPP)
Best Management Practices (BMPs)
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Straw Bale Barrier as Best Management Practice
II. Overview Of RegulationsD.Environmental Permits:
2. USEPAa) NPDES, SWPPP,
and BMPs
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Silt Fence as Best Management Practice
II. Overview Of Regulations
D.Environmental Permits:2. USEPA
a) NPDES, SWPPP, and BMPs
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II. Overview Of Regulations
D.Environmental Permits:2. USEPA
b) AZPDES
Arizona Pollution Discharge Elimination System