Snohomish County is divided into 4 quadrants.

•Southwest (SW)•Southeast (SE)•Northwest (NW)•Northeast (NE)

.

NENWSW SE

SNOHOMISH COUNTY

The dividing street between NORTH and SOUTH is Meridian Street or Meridian Place

See Thomas Brothers page:•398 A1•397 H1

SNOHOMISH COUNTY

The dividing street between EAST and WEST is Meridian Avenue or Meridian Drive.

See Thomas Brothers page:•456 B7•436 B3•376 B2

SNOHOMISH COUNTY

Snohomish County is divided in to 1 square mile grids. The grid numbering starts in the most southwestern area of Snohomish County and continues throughout the county to the Skagit County Border

For example:

Grid0000

Grid0001

Grid0100

Grid0101

Sno/King Co. Line

SnoCom agencies use a different numbering system.

Consult your training division for more

information

SNOPAC GRIDS

Highways generally start and end at the intersection with another highway.

•Where does SR 9 begin at it’s southernmost point?

Even numbered highways run East to West.•I-90 Boston, MA to Seattle WA

Odd numbered highways run North to South.•Canadian Border at Blaine, WA to Mexico Border in San Diego, CA

•Three numbered highways are spurs into , around or connecting highways or cities.•I-405, SR 520, SR 526

Most people say in King County somewhere. WRONG! It starts at the intersection of SR 522. Costco is actually addressed off Woodinville-Snohomish Rd.

HIGHWAY INFORMATION

Highway Numbering for the East to West routes starts in the south and the numbers get larger moving north.•I-10 From California to Florida, I-90 From Washington to Massachusetts.

Highway Numbering for the North to South routes starts in the West and gets larger moving East.•I-5 From Canada to Mexico on the West Coast, I-95 from Florida to Massachusetts.

US Routes follow the opposite rules.•US 2 is most northern and US 1 is most Eastern

U.S. Route

Interstate WA State HWY

HIGHWAY INFORMATION

D.A.N.S & S.P.E.W.DRIVES and AVENUES run NORTH and SOUTH.

STREETS and PLACES run EAST and WEST.

NENORTH and EAST are NEVER and EvenThe north and east sides of a road never have even address numbers

Boulevards, Roads, Courts, Circles and other names are roadways that meander and do not follow any one direction

HINTS & CHEATS

A grid is one square mile.A grid has 16 blocks.A block is 330’A mile is 5,280’

16 X 330’ = 5280

TH3 NUMB3RS

Grid/Block Line Roadway

18000

18100

18200

3500

3600

3700

3800

180 St SE

181 St SE

181 St SE.

181 Pl SE

180 Pl SE

35

Ave S

E

36

Ave S

E

37

D

rive S

E

38

D

rive S

E

39 A

ve S

E39

00

36

D

rive S

E

36

C

ourt

SE

36

C

ircl

e S

E181st Place SE is not on a grid/block line.It is designated as a

Place.

38 Drive SE is not on a grid/block

line. It is designated as a

Drive.

Roadways not on a grid/block lines are named in order. Drive 1st then Court,

then Circle.

39th Ave may not be on a

grid/block line, but is close enough and

may be named as shown.

180th St SE is on a grid line and will be designated as a street. 35th Ave is on a grid/block line and will be designated as an

avenue.

READING AN ADDRESS

What determines a Street vs. a Place or Avenue vs. a Drive?•The travel direction (remember D.A.N.S. & S.P.E.W.)•Is the road on grid or block line (remember the 330’)

Boulevards, Roads, Courts, Circles and other names are roadways that meander and do not follow any one

direction or are reserved for roadways not falling on a grid/block

line.

You will notice that 36th Ave. is on the grid/block line and is designated as an Ave. When the road begins to

meander it changes to Gage Boulevard.

18000

18100

18200

180 St SE

181 St SE

181 St SE.

181 Pl SE

35

Ave S

E

36

Ave S

E

36

D

rive S

E

36

C

ourt

SE

36

C

ircl

e S

E

3500

3600

3700

DeSoto Road

DeSoto

Road

Gage Boulevard

READING AN ADDRESS

The house numbers tell you where the house is on the street that follows.

For example:

8010 180th St. S.E.

“80” is the lowest cross street.It doesn’t mean 80th Ave. crossed 180th St.It only tells you where along 180th St. the

address is.

“10” is the house number. It doesn’t meanIt is the 10th house on the street. It’s telling youIt’s even, so it will be on the SOUTH side of the

road. House numbers generally go to 33 (remember the 330’ to a block). So this house is closer to the middle of the block than the end.

“180” is the street this house is on.Remember that Meridian St. is the “0” block.

180th is 180 blocks from the center of the county.59,400 feet or 11.25 miles.

180th is a street. It travels EAST to WEST

S.E. = The southeast quadrant of Snohomish

County

Addresses ending in “00” are generally reserved for commercial businesses

READING AN ADDRESS

The house numbers tell you where the house is on the street that follows.

For example:

15529 34th Dr. S.E.

“155” is the lowest cross street.It doesn’t mean 150th St. crossed 180th St.It only tells you where along 34th Ave. the

address is.

“29” is the house number. It doesn’t meanIt is the 29th house on the street. It’s telling you

It’s odd, so it will be on the EAST side of the road. House numbers generally go to 33 (remember the 330’ to a block). So this house is close to the end

of the block

“34” is the street this house is on.Remember that Meridian Ave. is the “0” block.34th is 34 blocks from the center of the county.

11,200 feet or 2.125 miles.

34th is a drive. It travels NORTH to SOUTH

S.E. = The southeast quadrant of Snohomish

County

Addresses ending in “00” are generally reserved for commercial businesses

READING AN ADDRESS

Breakdown 10 addresses as a crew.•Choose 10 addresses in your jurisdiction•For an added bonus…what grid is the address in in

READING AN ADDRESS

A little message to our Emergency Vehicle Drivers. When the

alarm comes in you, as the driver you should know where you’re

going. Don’t just run to the apparatus and get the reds flashing.

Stop at the map, look to where you’re going, know the general

direction that you are heading.

Once you are to the vicinity the company officer will direct you to

the exact location.

READING AN ADDRESS

You are the driver for the day. With the address given state the

general area this address is located and explain the best route to

get there. Remember you are the driver…don’t explain how to

pull into the exact driveway…Use the district wall map and get

your crew to the area. (Respond from your assigned station.)

Choose 5 addition address in your jurisdiction and test your

drivers.

READING AN ADDRESS

Throughout this presentation I used the word “Generally”.

All though there are rules to reading maps…many of those

rules are broken quite often.

Know your response area and don’t be surprised when

addressing does not jive with the norm.

READING AN ADDRESS

Shared by Snohomish County Fire District 7