Chapter 12.20
STREET NAMES AND HOUSE NUMBERS
Sections:
12.20.010 Official map adopted – Where filed.
12.20.020 County divided into four districts.
12.20.030 Base lines designated.
12.20.040 Districts designated.
12.20.050 Street designations.
12.20.060 One hundred grid block.
12.20.090 Extension of grid system.
12.20.100 Street and road signs – New.
12.20.110 Street and road signs – Replaced.
12.20.120 Engineering department responsible for map maintenance.
12.20.150 Violation – Misdemeanor.
12.20.010 Official map adopted – Where filed.
The official map establishes base lines, divides Thurston County into four districts, and sets forth a grid numbering system. This map, together with any amendments thereto, shall be on file in the office of the auditor of Thurston County, Washington, and is by this reference made a part hereof. A copy of the official map will be on file with the city clerk.
(Ord. 573, Added, 08/04/1970)
12.20.020 County divided into four districts.
Thurston County shall be divided into four districts as determined by the base lines. All addresses shall be suffixed by the name of the quadrant in which it is located. Base lines, described in TMC 12.20.030, are depicted on the official map.
(Ord. 573, Added, 08/04/1970)
12.20.030 Base lines designated.
Base lines are described as follows:
A. North-South Base Line. From the north, south along the midpoint of Budd Inlet, south along Capitol Way and continuing south on Capitol Boulevard in Tumwater, then continuing south from Tumwater along the Olympia-Tenino Road (Old U.S. 99) through Tenino and continuing south along State Highway 507 through Bucoda to the Lewis County Line;
B. East-West Base Line. Beginning on the west at the Grays Harbor County line on U.S. 410, continuing east to the junction with U.S. 101, then east along U.S. 101 to the point where the Mud Bay Road adjoins U.S. 101 (end of FAS 344), then east along Mud Bay Road (also known as Old Olympic Highway and Old 101) to the junction of Mud Bay Road and Fourth Avenue, east along Fourth Avenue, then east along Martin Way to the Old Nisqually Bridge at the Pierce County Line.
(Ord. 573, Added, 08/04/1970)
12.20.040 Districts designated.
Districts are described as follows:
A. N.E. – Northeast. That portion of Thurston County north of the east-west base line, and east of the north-south base line;
B. N.W. – Northwest. That portion of Thurston County north of the east-west base line, and west of the north-south base line;
C. S.E. – Southeast. That portion of Thurston County south of the east-west base line, and east of the north-south base line;
D. S.W. – Southwest. That portion of Thurston County south of the east-west base line, and west of the north-south base line.
(Ord. 573, Added, 08/04/1970)
12.20.050 Street designations.
The following street designations shall apply to street and road names, streets, road signs, and to addresses:
A. “Avenues” shall run east and west. Avenues shall be numbered (both north and south sides of the east-west base line).
B. “Streets” shall run north and south, and shall be named.
C. “Drive” shall be an irregular or diagonal street over two grid blocks in length not conforming to the grid pattern.
D. “Road” shall be a lengthy irregular or diagonal street over ten grid blocks in length, generally an arterial. The designation “road” shall be used only where the name has long-standing meaning or public sentiment.
E. “Places” shall be a north-south street, parallel to, but between streets.
F. “Ways” shall be an east-west street parallel to, but between avenues.
G. “Courts” shall be a cul-de-sac which cannot be extended. Courts are to be named or numbered and carry the number of the preceding street or avenue (in direction of the lowest house numbers).
H. “Loops” shall be small loop-type streets to carry the name of the street from which they originate.
I. “Lanes” shall be private streets or streets in a private street subdivision.
J. “Boulevards” shall be major community arterials, often characterized by tree-lined and landscaped pedestrian areas along both sides of the roadway. Directional traffic on a boulevard may sometimes be separated by tree-lined and landscaped medians.
(Ord. O2002-016, Amended, 09/03/2002; Ord. 573, Added, 08/04/1970)
12.20.060 One hundred grid block.
The one hundred block, for street naming and house numbering, shall be determined by consulting the official grid map. Grid maps indicating the location of one hundred block grid lines shall be prepared on one inch equals four hundred feet scale map and made available for use at a later date.
(Ord. 573, Added, 08/04/1970)
12.20.070 Numbering interval.
A. The assignment of a number to a specific property location shall be determined by measuring distances from the one hundred block grid lines.
B. A number shall be assigned each space of twenty feet, as measured from the one hundred block grid line.
C. Measurements shall be taken from the grid line to the main entrance of the building or property for the purpose of assigning numbers.
(Ord. 573, Added, 08/04/1970)
12.20.080 Number assignment.
A. Even numbers shall be assigned to north and east sides of streets; odd numbers shall be assigned to south and west sides of streets. Determination of street direction, north-south or east-west, can be decided by observing the overall length of a street and noting its general direction. The even and odd numbers shall be assigned consecutively and opposite one another wherever possible.
B. Short loops and cul-de-sacs shall be numbered consecutively from that point where they originate and proceeding progressively around the loop or cul-de-sac.
C. Multiple-dwelling units shall receive one house number; that number shall be determined by the location of the main entrance. Apartment numbers or letters may be used to differentiate individual units within the complex.
(Ord. 573, Added, 08/04/1970)
12.20.090 Extension of grid system.
The grid system shall be extended at the rate of ten blocks per mile, or as determined by the grid pattern as shown on the official map.
(Ord. 573, Added, 08/04/1970)
12.20.100 Street and road signs – New.
All new street and road signs in the city shall display street names, district designations and grid numbers in conformance with the provisions of this chapter.
(Ord. 573, Added, 08/04/1970)
12.20.110 Street and road signs – Replaced.
All replaced street or road signs erected after August 31, 1970, shall display at least the following two elements of this chapter:
A. Signs shall display the district suffix, NW, SW, SE, or NE;
B. Signs shall display the one hundred grid block number.
(Ord. 573, Added, 08/04/1970)
12.20.120 Engineering department responsible for map maintenance.
The engineering department shall be responsible for the development and maintenance of maps indicating street names and house numbers. This agency shall maintain a file of existing street names and a catalog of potential street names and be responsible for ensuring that proposed street names are in conformance with this chapter and do not duplicate existing street names.
(Ord. 573, Added, 08/04/1970)
12.20.130 Address assignment.
The building department shall be authorized to assign addresses upon request by private and public agencies or in the case of new subdivision plats.
(Ord. 573, Added, 08/04/1970)
12.20.140 Posting of address.
The building department shall make house and property numbers available for addresses; the owner or occupant of any residence, building, structure or place of business, excepting sheds and accessory buildings, opening upon or having access to a street within the city shall place an assigned address in a conspicuous location upon the main entrance or at the principal place of ingress to such residence, building, structure or place of business.
(Ord. 573, Added, 08/04/1970)
12.20.150 Violation – Misdemeanor.
Any person knowingly violating any provision of this chapter shall be charged with a misdemeanor.
(Ord. 573, Added, 08/04/1970)