SLIDE 1
National Environmental Policy Act
- Why?
- Public disclosure
- Inform decision makers
- To comply with other laws
- How?
- Assess environmental baseline
- Compare effect of various alternatives
- Environmental effects
- Economic effects
The Holden Beach Environmental Impact Statement Geoff Gisler April - - PowerPoint PPT Presentation
The Holden Beach Environmental Impact Statement Geoff Gisler April - - PowerPoint PPT Presentation
The Holden Beach Environmental Impact Statement Geoff Gisler April 29, 2016 National Environmental Policy Act Why? o Public disclosure o Inform decision makers o To comply with other laws How? o Assess environmental baseline o
SLIDE 2
SLIDE 3
Draft Environmental Impact Statement
- Modeled change in shoreline over 4 years
- Evaluated 6 alternatives:
- Alternative 1: No Action/Status Quo
- Alternative 2: Relocation/Retreat
- Alternative 3: Beach Nourishment
- Alternative 4: Nourishment and Inlet Management
- Alternative 5: Short Groin with Nourishment
- Alternative 6: Intermediate Groin with Nourishment
SLIDE 4
The Issue: Chronic Erosion
“T he purpo se o f the Ho lde n Be a c h E a st E nd Sho re Pro te c tio n Pro je c t (Pro po se d Ac tio n) is to re duc e o r mitig a te o ng o ing a nd c hro nic e ro sio n a t the E a st E nd
- f Ho lde n Be a c h a nd to pro te c t a nd se c ure pub lic
infra struc ture , ro a ds, ho me s, b usine sse s, re nta l pro pe rtie s, b e a c he s, re c re a tio na l a sse ts, a nd pro te c tive dune s.”
SLIDE 5
The Issue: East End Erosion
SLIDE 6
The Issue: East End Erosion
SLIDE 7
Narrowing The Issue
None of the alternatives protect every house.
SLIDE 8
Narrowing The Issue
SLIDE 9
The Issue: By the Numbers
- Parcels affected:
- Alt. 2: 28 total, 19 improved
- Alt. 6: 16 total, 11 improved
- Assessed value:
- Alt. 2: $5.18M
- Alt. 6: $2.1M
- Cost:
- Alt. 2: $0
- Alt. 6: $34.43M
SLIDE 10
Will A Groin Reduce Beach Nourishment Needs?
- DEIS only evaluated East End: east of station 40+00.
- Since 2001: less than 40,000 cy/yr on average (including
post-Hanna nourishment)
- Alternative 6 (terminal groin): 150,000 cy every four
years (~37,500 cy/year).
SLIDE 11
Will A Groin Protect the Beach?
SLIDE 12
Conclusions
- The EIS relies on a model that overestimates erosion and
is limited to only four years.
- If we assume the EIS modeling is correct, building a
terminal groin will only provide limited protection to five or six houses—no alternative will protect every house.
- The proposed terminal groin will not significantly