518 Riviera Dr Mastic Beach.pdf
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- Solicitation number
- W912DS26RA007
About this file
This document comprises structural condition assessment checklists, floor elevation survey sheets, and accompanying architectural plans for 518 Riviera Drive, Mastic Beach, New York, prepared as part of the Fire Island Inlet to Montauk Point (FIMP) Coastal Storm Risk Re-Evaluation Nonstructural Pilot Project by the U.S. Army Corps of Engineers (USACE) New York District.
The subject property is a residential Cape Cod-style structure constructed in 1935 with a total building footprint of 1,305.55 square feet, located in FEMA flood zone AE with a base flood elevation (BFE) of 7'-0" and design flood elevation of 10'-6". The structural assessment, dated February 24, 2025, rated the property in "Excellent" condition, finding no major structural deficiencies, uniform foundation type (slab-on-grade with CMU knee walls and piers), and adequate connections between original and additional structures. The main floor features 2x6 joists at 16" on center with 2x8 girders, while the attached garage contains slab-on-grade flooring. The floor elevation survey, dated February 10, 2025, documented the top of the lowest finished floor at 4.29 feet and the attached garage slab at 2.53 feet above the vertical datum (NAVD 88). Special considerations identified include non-uniform foundation design, the need to lift two refrigerant condensers located on the north elevation currently at approximately 2.5 feet above grade, and the presence of R410A-type refrigerant in the central air system. The assessment includes detailed architectural floor plans, elevation photographs, structural framing diagrams, mechanical and electrical equipment locations, and 16 assessment photographs documenting exterior facades, interior conditions, crawlspace framing, and building systems.
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Structural Condi�on Assessment Checklist
FIMP Pilot Project – Babylon and Brookhaven
USACE TRACKING #: 6129 ASSESSMENT DATE: 02-24-2025
1. Exterior finish materials (check all that apply. NP indicates Not Present):
☒ siding ☐ masonry ☐ masonry veneer* ☐ stone ☐ stone veneer
☐ �mber/wood ☐ wood shake ☐ concrete ☐ other
Typical shake/siding exposure:
*Note: where veneer is supported
2. Building access points (check all that apply):
Stairs Material(s) & Step Qty
☒ front ☒ Wood, 2 Steps
☒ side (left) ☒ Concrete, 2 Steps
☒ side (right) ☐
☐ back ☐
☐ interior (attached garage) ☐
☐ interior (basement) ☐
☐ basement bulkhead ☐
☒ crawlspace access ☒ CMU block to grade
☐ other ☐
3. Addi2on/a4achment number and size (check all that apply):
Quan�ty Area
☒ porch/pa�o (uncovered) 1 East – 42.49 SF
☐ porch/pa�o (covered)
☐ porch/pa�o (enclosed)
☒ deck (w/steps to grade)
West – 30.19 SF
North – 558.8 SF
East wrap around – 241.98 SF
☐ deck (w/out steps to grade)
☐ chimney (interior)
☐ chimney (exterior)
☐ garage (integral)
☐ garage (a3ached, adjacent)
☐ garage (a3ached, breezeway)
ADDRESS: 518 Riviera Drive COUNTY: Suffolk
CITY/TOWN: Mas�c Beach ZIP CODE: 11951
HOMEOWNER NAMES:
POC EMAIL: POC PHONE:
BASE FLOOD ELEVATION (BFE): 7’-0” DESIGN FLOOD ELEVATION (DFE): 10’-6”
ZONE: AE YEAR CONSTRUCTED: 1935
TOTAL AREA OF BUILDING FOOTPRINT (SF): 1305.55 MAXIMUM BUILDING HEIGHT ALLOWED: 35 ?
PROPERTY INFORMATION
GENERAL INFORMATION
USACE TRACKING #6129
☐ addi�on (interior access)
☐ addi�on (exterior access only)
☐ other
4. Accessible features (check all that apply): (NP)
☐ ramp ☐ chair li; ☐ hydraulic li; ☐ elevator ☐ other
5. Exterior improvements in work area (check all that apply):
☒ driveway ☒ pa�o/pavers ☐ retaining wall ☐ sidewalk ☒ landscaping
☐ pool/hot tub ☐ fence/gate ☐ other
6. Home Type
☐ Cape Cod ☐ Ranch ☐ Split Level ☐ Bungalow ☐ Cra;sman
☐ Co1age ☐ Farmhouse ☒ other
USACE TRACKING #6219
1. Approximate eleva2ons:
Top of founda�on +/- 8” above grade
Floor of basement / crawlspace +/- 1’-4” below grade
Lowest Struct Member Measured up from founda�on +/- 2’-0”
Floor of main living level +/- 1’-4” above grade
Floor of lowest living level +/- 1’-4” above grade
Floor of second floor +/- 10’-0” above grade (assumed)
Other A1ached garage – at grade
2. Floor system:
2.a. Main floor Framing towards the west side not observed. See plan.
Framing Size & Spacing East side: joist - 2x6 @ 16” O.C.
Girder – 2x8
Framing Type Wood framing
Framing Direc�on See plan
2.b. Second floor
Framing Size & Spacing Not observed
Framing Type Wood framing (assumed)
Framing Direc�on See plan
3. Founda2on type (check all that apply):
Material
☐ basement (subgrade)
☐ basement (walkout)
☒ crawlspace CMU knee wall
☐ slab on grade
☒ piers CMU piers
☐ piles
☐ posts/columns
☐ other
STRUCTURAL SYSTEMS
4. Wall system (check all that apply):
Material
☒ frame (plaAorm) Wood framing (assumed)
☐ frame (balloon)
☐ masonry/stone (solid)
☐ monolithic/poured
☐ panel/manufactured
☐ other
5. Roof system (click all that apply):
Material
☒ frame Original roofing not observed
Garage: 2x6 ridge
Ra;er – 2x6 @ 20” O.C.
☐ truss
☐ panel
☐ other
6. Signs of building damage or poten2al structural issue (check all that apply):
☐ founda�on se1lement
☒ cracking ☐ dry rot ☐ termites ☐ other
☐ water damage/mold/sagging ☐ further inves�ga�on
7. Load bearing par22ons/posts (if applicable):
(2) load bearing par22ons were found:
- Next to the stairs spanning from north to south.
- Located at the dining room with connected header beam above. See plan.
8. Lateral resis2ng systems observed (if applicable):
Standard wood frame system.
9. Chimney connec2ons to structure (if applicable):
Vent above the roof near the north side of the building.
10. Structural support for a4ached porches, decks, etc. (if applicable):
Wood deck at the south entrance. Structural support not observed. See plan.
Concrete deck at the north entrance. See plan.
11. Evidence of other upgrades or updates to the original structure?
A4ached boiler room and garage at the north side of the building with slab-on-grade. See plan.
1. Energy sources (check all that apply):
☐ oil ☐ natural gas ☒ electric ☐ propane ☐ wood burning
☐ solar
☐ other
1.a. Fuel storage tanks (NP)
Size/Quan�ty/Loca�on Below 1st Floor
☐ Oil, above-ground ☐
☐ Oil, underground ☐
☐ tank fill & vent lines ☐
☐ LP, above ground ☐
1.b. Fuel system components (NP)
Loca�on Below 1st Floor
☐ LP regulator or NG meter/regulator ☐
☐ LP/NG service valve ☐
☐ Fuel oil or LP or NG service piping ☐
2. Interior u2li2es (check all that apply)
Below 1st Floor Level
2.a. HVAC Equipment
☐ furnace (oil) ☐
☐ furnace (gas) ☐
☐ air handling unit ☐
☐ ductwork ☐
☐ baseboard heaters (elec) ☐
☐ boiler (oil) ☐
☐ boiler (gas) ☐
☐ baseboard heaters (hot water) ☐
☐ radiators (steam) ☐
☐ radiators (hot water) ☐
☐ radiators (electric) ☐
☐ hea�ng water piping ☐
☒ refrigerant piping ☒
☒ heat pump indoor unit ☒
☐ air condi�oning unit ☐
☐ wood stove ☐
☒ exhaust/flue rou�ng ☒
2b. Plumbing Equipment
☐ DHW heater (gas) ☐
☒ DHW heater (elec) ☒
☐ sump pump ☐
☒ sink ☒
☒ toilet ☒
☒ tub/shower ☒
☒ washer discharge ☒
☐ floor drain ☐
UTILITY
☐ pressure tank (well) ☐
☐ water filtra�on system ☐
☐ water service piping ☐
☐ drain (sewer) piping ☐
2c. Electrical Equipment
☒ elec. panel ☒
☒ elec. switches ☒
☒ elec. outlets ☒
☐ solar ba1ery ☐
☐ other ☐
3. Exterior u2li2es (check all that apply):
Below 1st Floor Level
3a. HVAC Equipment
☐ A/C compressor ☐
☒ heat pump outdoor unit ☒
☐ packaged unit ☐
☐ exhaust/flue rou�ng ☐
3b. Plumbing Equipment (NP)
☐ water meter ☐
☐ water service valve/box ☐
☐ water tank ☐
☐ water well/pump ☐
☐ sep�c tank ☐
☐ sep�c control panel ☐
☐ sep�c blower ☐
☐ irriga�on control panel ☐
3c. Electrical Equipment
☒ elec. meter ☒
☐ phone/cable junc�on box ☐
☐ satellite dish/TV antenna ☐
☐ generator ☐
☐ solar panel(s) ☐
☐ solar ba1ery ☐
☐ electric vehicle charging sta�on ☐
☒ fire, CO, or heat detector ☒
☒ quan�ty of fire/CO/heat detectors ☒ 3
4. Are there connec2ng u2li2es to/from outbuildings or other structures? NP
Not applicable
5. Storm drainage (check all that apply): NP
Below 1st Floor Level
☐ downspouts, surface drain ☐
☐ downspouts, subsurface drain ☐
☐ other ☐
6. Water service: NP
Meter loca�on
Service entry loca�on
7. Sewer service:
☒ Town Sewer ☒
☐ Sep�c ☐
Service discharge loca�on
8. Electrical power service:
9. Phone service:
☒ not applicable ☐ underground ☐ overhead
Building entry point
10. TV/fiber op2c service:
☒ not applicable ☐ underground ☐ overhead
☐ satellite dish/antenna Building entry point
11. Photos:
Exterior Eleva�ons: ☒ Front ☒ Right ☒ Back ☒ Le;
Structural: ☐ Columns ☐ Beams ☒ Joist Framing ☒ Founda�on
☐ AMc Framing ☐ Deck Framing
Electrical: ☐ Meter ☐ Panel ☐ U�lity Pole
Mechanical: ☐ Furnace/Boiler ☒ Hot Water Heater ☐ Pumps ☐ Water Meter
☐ A/C Compressor
Heat Pump/Split System: ☒ Ext. Unit ☒ Int. Unit ☐ Propane/Oil Tank
☐ underground ☐ overhead ☐ solar (primary) ☐ solar (supplemental)
Meter loca�on On side of garage
Meter number
U�lity Pole Number
Elec. panel loca�on
Elec. panel size Main breaker size – 200A
Qty 1pole 15A breaker - 10
Qty 1pole 20A breaker - 7
Qty 2 pole breaker 30A breaker - 2
Qty AFCI breaker -
Qty GCFI breaker -
Other breaker -2 Pole 50A breaker- 1, 2 Pole 20A breaker- 2
Sub-panel loca�on
Qty 1pole 15A breaker -
Qty 1pole 20A breaker -
Qty 2 pole breaker 30A breaker -
Qty AFCI breaker -
Qty GCFI breaker -
Solar and/or generator disconnect loca�on ☐n/a
12. Others:
Not applicable.
General Structural Condi�on Ra�ngs
EXCELLENT – Structure can be easily elevated or floodproofed (as applicable) without major altera"ons. No construc"on accessibility issues.
GREAT – Structure can be elevated or floodproofed (as applicable) without any major altera"ons. Minor construc"on accessibility issues.
GOOD – Structure can be elevated or floodproofed (as applicable) with some altera"ons. Moderate construc"on accessibility issues.
FAIR – Structure can be elevated or floodproofed (as applicable), but complex with many unknowns. Major construc"on accessibility issues.
POOR – Structure cannot be elevated or floodproofed (as applicable) without major altera"ons/repairs beyond the Government’s mandate.
GENERAL STRUCTURAL CONDITION:
☒Excellent ☐Great ☐Good ☐Fair ☐Poor
Are all exterior egress doors, windows, & garage doors (as applicable) fully operable & properly func�oning?
☒Yes ☐No
Are all interior doors fully operable & properly func�oning? ☒Yes ☐No
Are there any accessibility features present at any of the structure’s entrances? ☐Yes ☒No
Are there any indica�ons present/past termite infesta�on &/or termite damage? ☐Yes ☒No
Are there any surrounding features that may affect or be affected by eleva�ng or floodproofing (as applicable)?
☐None ☐Pool ☐Retaining Wall ☒Decks ☒Other: Mech. equipment
PROFESSIONAL OPINION:
For residen�al buildings, is the exis�ng structure structurally sounds & capable of withstanding the stresses imposed by the eleva�ng process without substan�al improvements? ☒Yes ☐No ☐N/A
REVIEWED & APPROVED BY:
SIGNATURE:
PROFESSIONAL LICENSE NO. (WITH STATE INITIALS):
PROFESSIONAL DESIGN FIRM:
INSPECTION TEAM:
Edited/Reviewed by:
☒ Jinhua Ma
Jus2fica2on of General Structural Condi2on Assessment:
- No major structural deficiencies were found during visual structural inspec�on.
- Founda�on type was found to be uniform except storage room located in the a1ached garage which is slab-on-grade.
- No connec�on issues were found between the original and the addi�onal part of the structure.
- No accessible issues were found at the entrances.
BUILDING ELEVATION/FLOODPROOFING SUMMARY
DATE:
Floor Eleva on Survey Sheet
USACE TRACKING #: 6129 SURVEY DATE: 02/10/2025
ADDRESS: 518 Riviera Dr COUNTY: Suffolk
CITY/TOWN: Mas�c Beach ZIP CODE: 11951
LEGAL DESCRIPTION AND/OR TAX PARCEL #:
0200-983.50-03.00-016.001, 472289 983.50-03-016.001
FOUNDATION TYPE: ☒Slab on Grade ☐Basement ☒Crawlspace ☐Elevated Without Enclosure on Post, Piles or Piers
☐Elevated With Enclosure on Post, Piles or Piers ☐Elevated With Enclosure Not on Post, Piles or Piers
FLOOD HAZARD ZONE(S): AE FEMA BASE FLOOD ELEVATION(S) (BFE): 7’-0” FEMA BFE + 2: 10’-6”
BENCHMARK UTILIZED: NAD 83 BM. VERTICAL DATUM: NAVD 88
BLDG. ELEV. DATUM: NAVD 88 OTHER: N/A
All Finish Floor Eleva�ons (FFE) to be taken at each exterior door threshold on the bo�om floor.
All eleva�ons to be provided in U.S. customary units to the nearest tenth of a survey foot.
If an item does not apply to the building, enter “N/A” for not applicable.
Datum used for building eleva�ons must be the same as that used for the BFE. Conversion factor used? ☐YES ☒NO
Conversion/Comments:
N/A
All measurements to be provided in U.S. customary units to the nearest ½ survey foot.
All calculated areas to be provided in U.S. customary units to the nearest 10 square feet.
If an item does not apply to the building, enter “N/A” for not applicable.
Square footage of first floor (excl. carports & detached porches): 1305.55 square feet
Square footage of aBached garage: 340.41 square feet
Square footage of aBached decks and porches: 42.49(east), 30.19(west), 558.8(north), 241.98(east wrap around) square feet
Horizontal distance between the aBached garage & edge of road (i.e. driveway length): 38.06 feet
Horizontal distance between the front building line and nearest fence/property line: 31.81 feet
Horizontal distance between the right building line & nearest fence/property line: 47.60 feet
Horizontal distance between the leF building line & nearest fence/property line: 12.87 feet
Horizontal distance between the rear building line & nearest fence/property line: 63.04 feet
BUILDING USE: ☐Commercial ☐Industrial ☒Residen�al Other:
LATITUDE: 40.751906 LONGITUDE: -72.846717
Top of the lowest floor (FFE): 4.29 feet
BoBom of the lowest horizontal structural member: N/A feet
ABached garage (top of slab): 2.53 feet
Lowest eleva�on of Machinery & Equipment (M&E) servicing the building
(describe the type(s) of M&E and loca�on(s) in the Observa�ons & Notes Area):
N/A feet
Lowest Adjacent Grade (LAG) next to building: ☐Natural ☒Finished 2.46 feet
Highest Adjacent Grade (HAG) next to building: ☒Natural ☐Finished 3.30 feet
Finished LAG at lowest eleva�on of aBached deck or stairs, including structural support: N/A feet
Edge of road pavement eleva�on at the driveway/roadway centerline-centerline intersec�on: 2.24 feet
PROPERTY INFORMATION
ELEVATION SUMMARY
MEASUREMENT SUMMARY
USACE TRACKING #6129
ELEVATION PHOTOGRAPHS
FRONT
REAR
LEFT
RIGHT
ELEVATION PHOTOGRAPHS
O
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DW
DINING ROOM
KITCHEN
OFFICE
WATER
HEATER
ENTRY
LIVING ROOM
BEDROOM
BEDROOM
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US Army Corps of Engineers
U .S
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PL
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1 SCALE: 3/16" = 1'-0"
PROPOSED FIRST FLOOR PLAN
2 SCALE: 3/16 = 1'-0"
PROPOSED SECOND FLOOR PLAN
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
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1 SCALE: 3/16" = 1'-0"
PROPOSED FIRST FLOOR PLAN
2 SCALE: 3/16 = 1'-0"
PROPOSED SECOND FLOOR PLAN
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
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USACE TRACKING #6219
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LEGEND:
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LOAD BEARING CMU KNEE WALL BELOW
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ADDITION
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APPROX LOC. OF CMU PIER BELOW
SITTING ON CONC FOOTING
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SLAB ON GRADE
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+/- 1'-4" T.O. SLAB ON GRADE
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2X8 GIRDER BELOW
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ASSUMED
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RED TEXT = STRUCTURAL NOTES
BLUE TEXT = MEP NOTES
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GARAGE
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ASSUME GIRDER BELOW
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ASSUME CMU PIER BELOW
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DN
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T.O. CONC DECK
+/- 1'-4" ABOVE GRADE
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DN
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T.O. WOOD DECK
+/- 1'-4" ABOVE GRADE
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SPLIT SYSTEM INDOOR AC UNIT
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SPLIT SYSTEM OUTDOOR CONDENSER
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ELECTRICAL PANEL
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ELECTRICAL METER
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DOMESTIC HOT WATER HEATER
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SD
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SD
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WOOD FRAMING SPAN DIRECTION
rgnewman Polygon rgnewman Rectangle rgnewman Rectangle rgnewman Rectangle rgnewman Rectangle rgnewman Rectangle rgnewman Rectangle rgnewman Rectangle rgnewman Rectangle rgnewman Line rgnewman Callout
2X6 ROOF RIDGE
rgnewman Text Box
RAFTER SPAN
2X6 @ 20" O.C.
rgnewman Arrow rgnewman Rectangle rgnewman Rectangle rgnewman Rectangle rgnewman Rectangle rgnewman Rectangle rgnewman Callout
HEADER BELOW
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ASSUMED
rgnewman Line rgnewman Line rgnewman Line rgnewman Text Box
ASSUMED
rgnewman Text Box
LEGEND:
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ADDITION
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EXTERIOR/LOAD BEARING WALL BELOW
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CEILING CRACKS BELOW
rgnewman Line rgnewman Line rgnewman Line rgnewman Text Box
WOOD FRAMING SPAN DIRECTION
rgnewman Text Box
LOCATION OF WHERE SIGN OF BUILDING DAMAGE WAS FOUND
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ROOF RIDGE
rgnewman Arrow rgnewman Text Box
RAFTER SPAN
ASSUMED
rgnewman Rectangle rgnewman Callout
SPLIT SYSTEM INDOOR AC UNIT
rgnewman Rectangle rgnewman Callout
SPLIT SYSTEM INDOOR AC UNIT
rgnewman Text Box
SD
rgnewman Ellipse
Special Considera�ons
USACE TRACKING #: 6219 ASSESSMENT DATE: 02/24/2025
1. Founda�on was found be non-uniform. Founda�on in the storage room area was slab-on-grade. See plan.
2. 2 condensers located on the north side of the building need to be li*ed. See plan. See photo M#2.
3. Exis�ng central air system uses R410A type refrigerant.
ADDRESS: 518 Riviera Dr COUNTY: Suffolk
CITY/TOWN: Mas�c Beach ZIP CODE: 11951
PROPERTY INFORMATION
SPECIAL CONSIDERATIONS
Structural Condi�on Assessment Summary- Appendix
USACE TRACKING #: 6219 ASSESSMENT DATE: 02/17/2025
• Provide a descrip�ve cap�on with each photographic. Limit two photographs per page.
ID: #
ADDRESS: 518 Riviera Dr, Mas�c
Beach, NY, 11951
DATE: 02/17/2025
DESCRIPTION:
Exterior photo of northeast façade showing steps up to main entrance.
PHOTO: A#1
Exterior photo of raised deck and access to side entrance.
PHOTO: A#2
Assessment Photographs
Exterior photo of south façade showing raised walkway.
PHOTO: A#3
Exterior photo of southeast façade showing steps up to back entrance.
PHOTO: A#4
Interior photo showing kitchen cabinets and typical le flooring and back splash.
PHOTO: A#5
Interior photo of bathroom showing le flooring and led wall.
PHOTO: A#6
Interior photo at garage showing steps down to slab of grade.
PHOTO: A#7
Interior photo at second floor showing typical wood flooring.
PHOTO: A#8
Interior photo at second floor bathroom showing le flooring and wall les.
PHOTO: A#9
Structural Condi�on Assessment Summary - Appendix
Beach, NY 11951
DATE: 02/24/2025
DESCRIPTION: Crawlspace
Wood framing below the east part of the building. Joist spanning from east to west
Joists: 2x6 @ 16” O.C.
Girder: 2x8
PHOTO: S#1
ID: #
ADDRESS: 518 Riviera Dr, Mas�c
Beach, NY 11951
DATE: 02/24/2025
DESCRIPTION: Crawlspace
The arrows are poin ng at the CMU pier and 2x8 girder located near the center of the building. CMU knee wall was found behind.
Crawlspace was not accessible on the west side of the building.
PHOTO: S#2
Beach, NY 11951
DESCRIPTION: 1st Fl
Ceiling crack
PHOTO: S#3
ID: #
ADDRESS: 518 Riviera Dr, Mas�c
Beach, NY 11951
DESCRIPTION: Exterior – north side
The red arrow is poin ng at the crack on the vent
PHOTO: S#4
Beach, NY 11951
DESCRIPTION: Garage
Roof framing above the a2ached garage.
Ridge: 2x6
Ra3ers: 2x6 @ 20” O.C.
PHOTO: S#5
Beach, NY 11951
DATE: 02/24/2025
DESCRIPTION:
Refrigerant lines running along the side of the house from the condenser to indoor ac units.
PHOTO: M#1
ADDRESS: 518 Riviera Dr, Mas�c
Beach, NY 11951
DATE: 02/24/2025
DESCRIPTION:
Split system outdoor condenser units.
Mounted approximately 2.5’ above grade.
PHOTO: M#2
Beach, NY 11951
DATE: 02/24/2025
DESCRIPTION:
Electrical meter next to split system outdoor condenser unit.
PHOTO: M#3
ADDRESS: 518 Riviera Dr, Mas�c
Beach, NY 11951
DATE: 02/24/2025
DESCRIPTION:
Electrical panel located on the inside wall of garage
PHOTO: M#4
Beach, NY 11951
DATE: 02/24/2025
DESCRIPTION:
Refrigerant lines running along the side of the house from the condenser to indoor ac units.
PHOTO: M#5
ADDRESS: 518 Riviera Dr, Mas�c
Beach, NY 11951
DATE: 02/24/2025
DESCRIPTION:
Split system indoor unit located in living room
PHOTO: M#6
File details come from the government source that posted it. Updated .