ADOPTS WITH AMENDMENTS:

International Residential Code 2015 (IRC 2015)

Part I — Administrative

Part II — Definitions

Part III — Building Planning and Construction

Part IV — Energy Conservation

Part V — Mechanical

Part VI — Fuel Gas

Part VII — Plumbing

Part VIII — Electrical

Part IX — Referenced Standards

Heads up: There are no amended sections in this chapter.

Appendix V Wind Speeds, Seismic Design Categories and Ground Snow Loads

AMENDMENT
This section has been amended at the state or city level.
Municipality Ultimate
Wind
Speed, Vult
Nominal
Wind
Speed, Vasd
Seismic Design Category1 Ground
Snow
Load,

Pg (psf)
Site (Soil)
Class A-D
Site (Soil)
Class E
Andover 130 101 B B 30
Ansonia 125 97 B B 30
Ashford 130 101 B B 35
Avon 120 93 B B 35
Barkhamsted 120 93 B B 40
Beacon Falls 125 97 B B 30
Berlin 125 97 B B 30
Bethany 125 97 B B 30
Bethel 120 93 B C 30
Bethlehem 120 93 B B 35
Bloomfield 125 97 B B 35
Bolton 125 97 B B 30
Bozrah 135 105 B B 30
Branford 130 101 B B 30
Bridgeport 125 97 B C 30
Bridgewater 120 93 B C 35
Bristol 120 93 B B 35
Brookfield 120 93 B C 35
Brooklyn 130 101 B B 35
Burlington 120 93 B B 35
Canaan 115 89 B B 40
Canterbury 130 101 B B 35
Canton 120 93 B B 35
Chaplin 130 101 B B 35
Cheshire 125 97 B B 30
Chester 130 101 B B 30
Clinton2 135 105 B B 30
Colchester 130 101 B B 30
Colebrook 115 89 B B 40
Columbia 130 101 B B 30
Cornwall 115 89 B B 40
Coventry 130 101 B B 30
Cromwell 125 97 B B 30
Danbury 120 93 B C 30
Darien 120 93 B C 30
Deep River 130 101 B B 30
Derby 125 97 B B 30
Durham 130 101 B B 30
Eastford 130 101 B B 40
East Granby 120 93 B B 35
East Haddam 130 101 B B 30
East Hampton 130 101 B B 30
East Hartford 125 97 B B 30
East Haven 130 101 B B 30
East Lyme2 135 105 B B 30


Municipality Ultimate
Wind
Speed, Vult
Nominal
Wind
Speed, Vasd
Seismic Design Category1 Ground
Snow
Load,

Pg (psf)
Site (Soil)
Class A-D
Site (Soil)
Class E
Easton 120 93 B C 30
East Windsor 125 97 B B 35
Ellington 125 97 B B 35
Enfield 125 97 B B 35
Essex 135 105 B B 30
Fairfield 125 97 B C 30
Farmington 125 97 B B 35
Franklin 130 101 B B 30
Glastonbury 125 97 B B 30
Goshen 115 89 B B 40
Granby 120 93 B B 35
Greenwich 120 93 B C 30
Griswold 135 105 B B 30
Groton2 135 105 B B 30
Guilford 130 101 B B 30
Haddam 130 101 B B 30
Hamden 125 97 B B 30
Hampton 130 101 B B 35
Hartford 125 97 B B 30
Hartland 120 93 B B 40
Harwinton 120 93 B B 35
Hebron 130 101 B B 30
Kent 115 89 B B 40
Killingly 130 101 B B 40
Killingworth 130 101 B B 30
Lebanon 130 101 B B 30
Ledyard 135 105 B B 30
Lisbon 135 105 B B 30
Litchfield 120 93 B B 40
Lyme 135 105 B B 30
Madison2 130 101 B B 30
Manchester 125 97 B B 30
Mansfield 130 101 B B 35
Marlborough 130 101 B B 30
Meriden 125 97 B B 30
Middlebury 120 93 B B 35
Middlefield 125 97 B B 30
Middletown 130 101 B B 30
Milford 125 97 B B 30
Monroe 120 93 B C 30
Montville 135 105 B B 30
Morris 120 93 B B 35
Naugatuck 125 97 B B 30
New Britain 125 97 B B 30
New Canaan 120 93 B C 30
New Fairfield 115 89 B C 35
New Hartford 120 93 B B 40
New Haven 125 97 B B 30


Municipality Ultimate
Wind
Speed, Vult
Nominal
Wind
Speed, Vasd
Seismic Design Category1 Ground
Snow
Load,

Pg (psf)
Site (Soil)
Class A-D
Site (Soil)
Class E
Newington 125 97 B B 30
New London2 135 105 B B 30
New Milford 115 89 B B 35
Newtown 120 93 B C 30
Norfolk 115 89 B B 40
North Branford 130 101 B B 30
North Canaan 115 89 B B 40
North Haven 125 97 B B 30
North Stonington 135 105 B B 30
Norwalk 120 93 B C 30
Norwich 135 105 B B 30
Old Lyme2 135 105 B B 30
Old Saybrook2 135 105 B B 30
Orange 125 97 B B 30
Oxford 125 97 B B 30
Plainfield 135 105 B B 35
Plainville 125 97 B B 35
Plymouth 120 93 B B 35
Pomfret 130 101 B B 40
Portland 130 101 B B 30
Preston 135 105 B B 30
Prospect 125 97 B B 30
Putnam 130 101 B B 40
Redding 120 93 B C 30
Ridgefield 120 93 B C 30
Rocky Hill 125 97 B B 30
Roxbury 120 93 B B 35
Salem 135 105 B B 30
Salisbury 115 89 B B 40
Scotland 130 101 B B 30
Seymour 125 97 B B 30
Sharon 115 89 B B 40
Shelton 125 97 B C 30
Sherman 115 89 B C 35
Simsbury 120 93 B B 35
Somers 125 97 B B 35
Southbury 120 93 B B 35
Southington 125 97 B B 30
South Windsor 125 97 B B 30
Sprague 130 101 B B 30
Stafford 125 97 B B 35
Stamford 120 93 B C 30
Sterling 135 105 B B 35
Stonington2 140 108 B B 30
Stratford 125 97 B C 30
Suffield 120 93 B B 35
Thomaston 120 93 B B 35
Thompson 130 101 B B 40


Municipality Ultimate
Wind
Speed, Vult
Nominal
Wind
Speed, Vasd
Seismic Design Category1 Ground
Snow
Load,

Pg (psf)
Site (Soil)
Class A-D
Site (Soil)
Class E
Tolland 125 97 B B 35
Torrington 120 93 B B 40
Trumbull 125 97 B C 30
Union 125 97 B B 40
Vernon 125 97 B B 30
Voluntown 135 105 B B 30
Wallingford 125 97 B B 30
Warren 115 89 B B 40
Washington 120 93 B B 35
Waterbury 125 97 B B 35
Waterford2 135 105 B B 30
Watertown 120 93 B B 35
Westbrook2 135 105 B B 30
West Hartford 125 97 B B 30
West Haven 125 97 B B 30
Weston 120 93 B C 30
Westport 120 93 B C 30
Wethersfield 125 97 B B 30
Willington 125 97 B B 35
Wilton 120 93 B C 30
Winchester 120 93 B B 40
Windham 130 101 B B 30
Windsor 125 97 B B 35
Windsor Locks 125 97 B B 35
Wolcott 125 97 B B 35
Woodbridge 125 97 B B 30
Woodbury 120 93 B B 35
Woodstock 130 101 B B 40


Footnotes:
  1. If Site Class F is present, the Short Period Spectral Response Acceleration (SDS) shall be determined according to Section 1613.3 of the International Building Code, and the Seismic Design Category shall be determined in accordance with Table 301.2.2.1.1.
  2. Areas south of Interstate 95 in this municipality are classified as a wind-borne debris region. See Section R202 for exceptions.
UpCodes Premium
Leverage the most sophisticated code compliance platform.
TRY FREE FOR TWO WEEKS VISIT PRICING