§ 186.520

The provisions of the Oregon-Washington Columbia River Boundary Compact are as follows:\n______________________________________________________________________________\nARTICLE I.\nPURPOSE\nThe boundary between the States of Oregon and Washington along the course of the Columbia River has not been easy to ascertain because of changes in the main channel of the river with a result that a state of confusion and dispute exists and the enforcement and administration of the laws of the two states has been rendered difficult.\nThe purpose of this compact is to fix with precision by reference to stations of longitude and latitude the boundary between the States of Oregon and Washington from one marine league due west of the mouth of the Columbia River to the most easterly point at which the 46th parallel of north latitude crosses said river, at which point the river ceases to form the boundary between the two states.\nARTICLE II.\nDESCRIPTION\nThe boundary between the States of Oregon and Washington from one marine league due west of the mouth of the Columbia River to the point at which the last described point number of the boundary as herein determined meets the 46th parallel of north

shington from one marine league due west of the mouth of the Columbia River to the point at which the last described point number of the boundary as herein determined meets the 46th parallel of north latitude at 118°59’10'.12 of the west longitude shall be as follows:\nBeginning one marine league at sea off the mouth of the Columbia River at north latitude 46°15’00'.00; running thence due east to point number 1 of this description, which point is at north latitude 46°15’00'.00, west longitude 124°05’00'.00; thence from point number 1 continuing upstream in the channel of the Columbia River by a series of straight lines connecting the following numbered and described points in consecutive order.\nPoint North West\nNumber Latitude Longitude\n1 46°15’00'.00 124°05’00'.00\n2 46°15’51'.00 124°02’02'.75\n3 46°16’17'.00 124°01’45'.80\n4 46°16’59'.50 124°02’14'.40\n5 46°17’28'.00 124°02’07'.00\n6 46°17’33'.25 124°01’12'.25\n7 46°16’41'.50 124°00’00'.00\n8 46°16’03'.00 123°58’11'.80\n9 46°14’19'.80 123°55’42'.00\n10 46°14’06'.00 123°52’14'.50\n11 46°16’09'.50 123°44’20'.50\n12 46°15’01'.00 123°41’12'.70\n13 46°15’33'.30 123°38’52'.80\n14 46°15’23'.90 123°35’05'.00\n15 46°15’38'.00

46°14’19'.80 123°55’42'.00\n10 46°14’06'.00 123°52’14'.50\n11 46°16’09'.50 123°44’20'.50\n12 46°15’01'.00 123°41’12'.70\n13 46°15’33'.30 123°38’52'.80\n14 46°15’23'.90 123°35’05'.00\n15 46°15’38'.00 123°32’23'.00\n16 46°16’14'.60 123°30’00'.00\n17 46°15’46'.70 123°27’51'.40\n18 46°14’23'.50 123°25’51'.60\n19 46°13’10'.50 123°25’20'.50\n20 46°11’29'.00 123°25’43'.60\n21 46°10’47'.80 123°25’38'.00\n22 46°09’01'.00 123°23’21'.50\n23 46°08’33'.00 123°18’45'.60\n24 46°09’04'.50 123°15’47'.20\n25 46°10’00'.00 123°13’51'.20\n26 46°11’20'.80 123°09’55'.50\n27 46°11’11'.30 123°07’10'.90\n28 46°09’40'.00 123°04’23'.50\n29 46°09’24'.00 123°03’22'.40\n30 46°08’38'.40 123°02’00'.00\n31 46°08’06'.00 123°00’16'.00\n32 46°06’20'.02 122°57’44'.28\n33 46°06’17'.36 122°57’38'.295\nDescription of Location of Point Number 33:\nA point on the center line of the Longview Bridge at\ncenter of main span.\n34 46°06’14'.71 122°57’32'.31\n35 46°05’02'.70 122°54’11'.00\n36 46°03’37'.50 122°52’59'.50\n37 46°01’53'.50 122°52’35'.50\n38 46°00’52'.25 122°51’17'.20\n39 45°58’52'.00 122°50’11'.80\n40 45°57’40'.00 122°48’46'.80\n41 45°55’57'.00 122°48’18'.00\n42 45°54’47'.00 122°48’36'.75\n43 45°53’05'.00

46°01’53'.50 122°52’35'.50\n38 46°00’52'.25 122°51’17'.20\n39 45°58’52'.00 122°50’11'.80\n40 45°57’40'.00 122°48’46'.80\n41 45°55’57'.00 122°48’18'.00\n42 45°54’47'.00 122°48’36'.75\n43 45°53’05'.00 122°47’48'.30\n44 45°52’06'.00 122°47’01'.50\n45 45°50’40'.00 122°47’04'.50\n46 45°49’31'.20 122°47’41'.00\n47 45°48’37'.00 122°47’40'.00\n48 45°46’51'.00 122°46’06'.30\n49 45°45’34'.20 122°45’37'.00\n50 45°44’04'.70 122°45’32'.00\n51 45°42’05'.00 122°46’16'.00\n52 45°40’50'.80 122°46’24'.00\n53 45°39’26'.75 122°45’46'.00\n54 45°38’40'.00 122°44’13'.00\n55 45°38’17'.00 122°42’47'.50\n56 45°37’35'.37 122°41’35'.14\n57 45°37’29'.47 122°41’23'.855\nDescription of Location of Point Number 57:\nA point on the center line of Northern Pacific Railroad Bridge across Columbia River, which point is at center of 3rd pier south of the draw span.\n58 45°37’26'.52 122°41’18'.215\n59 45°37’07'.85 122°40’33'.42\n60 45°37’05'.938 122°40’26'.939\nDescription of Location of Point Number 60:\nA point on the center line of the west highway bridge crossing the Columbia River between Portland, Oregon, and Vancouver, Washington, said point being 12.0 ft. south from the center of pier No.

60:\nA point on the center line of the west highway bridge crossing the Columbia River between Portland, Oregon, and Vancouver, Washington, said point being 12.0 ft. south from the center of pier No. 6 of said bridge.\n61 45°37’05'.62 122°40’25'.86\nDescription of Location of Point Number 61:\nA point on the center line of the east highway bridge crossing the Columbia River between Portland, Oregon, and Vancouver, Washington, said point being 12.0 ft. south from the center of pier No. 6 of said bridge.\n62 45°37’03'.71 122°40’19'.38\n63 45°36’34'.00 122°38’27'.00\n64 45°36’29'.80 122°36’21'.30\n65 45°36’20'.00 122°35’20'.00\n66 45°35’47'.90 122°32’48'.00\n67 45°35’23'.50 122°31’24'.20\n68 45°35’01'.00 122°29’30'.00\n69 45°34’42'.80 122°28’20'.50\n70 45°34’03'.00 122°27’09'.30\n71 45°33’49'.00 122°26’15'.80\n72 45°34’03'.30 122°24’36'.50\n73 45°34’29'.50 122°23’25'.80\n74 45°34’33'.40 122°22’44'.00\n75 45°34’10'.00 122°21’04'.00\n76 45°32’55'.20 122°19’49'.00\n77 45°32’38'.00 122°17’43'.70\n78 45°32’38'.80 122°15’56'.70\n79 45°33’03'.25 122°14’24'.50\n80 45°33’55'.00 122°11’58'.50\n81 45°34’37'.00 122°10’54'.00\n82 45°35’03'.00 122°08’25'.50\n83 45°34’53'.40 122°06’40'.00\n84

17’43'.70\n78 45°32’38'.80 122°15’56'.70\n79 45°33’03'.25 122°14’24'.50\n80 45°33’55'.00 122°11’58'.50\n81 45°34’37'.00 122°10’54'.00\n82 45°35’03'.00 122°08’25'.50\n83 45°34’53'.40 122°06’40'.00\n84 45°35’00'.00 122°06’02'.00\n85 45°36’35'.00 122°02’35'.00\n86 45°36’53'.80 122°01’11'.50\n87 45°36’58'.00 122°00’08'.50\n88 45°37’23'.00 121°58’54'.50\n89 45°37’59'.00 121°57’42'.80\n90 45°38’37'.50 121°57’16'.50\n91 45°38’42'.00 121°57’01'.80\n92 45°38’40'.35 121°56’37'.34\n93 45°38’40'.13 121°56’22'.57\nDescription of Location of Point Number 93:\nA point at the intersection of the axis of Bonneville Dam and the center line of center pier of the spillway of said dam.\n94 45°38’39'.82 121°56’01'.46\n95 45°39’17'.00 121°54’25'.00\n96 45°39’43'.85 121°53’58'.48\nDescription of Location of Point Number 96:\nA point on center line of bridge at Cascade Locks, known as 'The Bridge of the Gods' and in the center of the main span of said bridge.\n97 45°39’44'.81 121°53’58'.16\n98 45°39’45'.77 121°53’57'.84\n99 45°40’15'.00 121°54’02'.00\n100 45°41’36'.80 121°51’57'.00\n101 45°42’24'.75 121°48’36'.00\n102 45°41’39'.00 121°44’02'.00\n103 45°41’42'.00 121°42’22'.00\n104 45°42’19'.00

9’45'.77 121°53’57'.84\n99 45°40’15'.00 121°54’02'.00\n100 45°41’36'.80 121°51’57'.00\n101 45°42’24'.75 121°48’36'.00\n102 45°41’39'.00 121°44’02'.00\n103 45°41’42'.00 121°42’22'.00\n104 45°42’19'.00 121°40’02'.00\n105 45°42’17'.50 121°37’48'.50\n106 45°43’36'.00 121°31’54'.30\n107 45°43’15'.275 121°29’52'.445\n108 45°43’07'.02 121°29’36'.615\nDescription of Location of Point Number 108:\nA point on the center line of the Hood River Bridge at the center of the draw span of said bridge.\n109 45°43’04'.075 121°29’30'.96\n110 45°42’05'.20 121°27’41'.80\n111 45°41’39'.25 121°25’22'.00\n112 45°41’35'.00 121°24’02'.00\n113 45°42’11'.50 121°22’17'.00\n114 45°42’18'.00 121°20’11'.50\n115 45°42’00'.00 121°18’40'.00\n116 45°41’13'.30 121°17’10'.00\n117 45°40’40'.50 121°14’52'.00\n118 45°40’17'.00 121°12’52'.50\n119 45°39’00'.00 121°11’57'.00\n120 45°37’47'.00 121°11’38'.40\n121 45°37’00'.25 121°11’43'.00\n122 45°36’23'.80 121°10’57'.00\n123 45°36’22'.50 121°10’00'.00\n124 45°36’29'.175 121°08’39'.84\n125 45°36’40'.89 121°08’22'.135\nDescription of Location of Point Number 125:\nA point on the center line of The Dalles Bridge across the Columbia River at the center of the main span of said

39'.84\n125 45°36’40'.89 121°08’22'.135\nDescription of Location of Point Number 125:\nA point on the center line of The Dalles Bridge across the Columbia River at the center of the main span of said bridge.\n126 45°36’43'.94 121°08’17'.53\n127 45°36’35'.69 121°07’50'.34\n128 45°36’58'.44 121°07’16'.41\n129 45°37’06'.095 121°06’57'.58\n130 45°37’14'.85 121°07’02'.75\nDescription of Location of Point Number 130:\nA point on the axis of The Dalles Dam at Station 48 + 79 of the center line survey of said dam.\n131 45°37’23'.97 121°07’08'.14\n132 45°38’53'.13 121°05’01'.25\n133 45°39’09'.54 121°03’47'.51\n134 45°39’04'.04 121°01’57'.51\n135 45°39’12'.08 121°00’22'.28\n136 45°38’54'.66 120°58’56'.33\n137 45°38’55'.91 120°58’49'.52\nDescription of Location of Point Number 137:\nA point on the center line of the Oregon Trunk Railroad Bridge and in the center of the 4th pier from the north end of said bridge.\n138 45°38’58'.405 120°58’35'.90\n139 45°39’24'.84 120°57’06'.97\n140 45°39’23'.58 120°56’34'.22\n141 45°38’24'.54 120°54’44'.75\n142 45°38’35'.09 120°53’40'.72\n143 45°40’18'.79 120°51’15'.26\n144 45°41’11'.69 120°47’14'.64\n145 45°42’19'.71 120°43’38'.83\n146 45°42’42'.58

’23'.58 120°56’34'.22\n141 45°38’24'.54 120°54’44'.75\n142 45°38’35'.09 120°53’40'.72\n143 45°40’18'.79 120°51’15'.26\n144 45°41’11'.69 120°47’14'.64\n145 45°42’19'.71 120°43’38'.83\n146 45°42’42'.58 120°42’10'.70\n147 45°42’57'.18 120°41’18'.11\n148 45°43’48'.14 120°40’05'.19\n149 45°44’45'.12 120°38’01'.97\n150 45°44’47'.00 120°37’17'.91\n151 45°44’47'.99 120°35’23'.91\n152 45°44’18'.49 120°33’29'.23\n153 45°42’37'.59 120°31’17'.65\n154 45°42’00'.37 120°30’16'.48\n155 45°41’40'.42 120°28’53'.22\n156 45°41’58'.55 120°24’08'.96\n157 45°42’41'.66 120°19’30'.62\n158 45°43’16'.74 120°16’56'.18\n159 45°43’33'.84 120°12’34'.62\n160 45°45’43'.67 120°10’10'.01\n161 45°46’24'.09 120°08’25'.17\n162 45°47’07'.10 120°04’08'.70\n163 45°48’26'.17 120°00’49'.27\n164 45°49’28'.29 119°57’52'.64\n165 45°49’41'.97 119°54’21'.95\n166 45°50’25'.18 119°50’53'.51\n167 45°50’52'.00 119°48’05'.62\n168 45°50’45'.15 119°46’18'.16\n169 45°51’25'.40 119°40’07'.80\n170 45°54’20'.70 119°37’20'.96\n171 45°55’10'.82 119°35’58'.28\n172 45°55’32'.25 119°34’13'.67\n173 45°54’31'.37 119°31’24'.18\n174 45°54’23'.43 119°29’13'.01\n175 45°55’03'.10 119°26’57'.35\n176 45°55’18'.10 119°21’48'.12\n177 45°55’51'.37

’10'.82 119°35’58'.28\n172 45°55’32'.25 119°34’13'.67\n173 45°54’31'.37 119°31’24'.18\n174 45°54’23'.43 119°29’13'.01\n175 45°55’03'.10 119°26’57'.35\n176 45°55’18'.10 119°21’48'.12\n177 45°55’51'.37 119°19’52'.71\n178 45°55’54'.48 119°19’39'.28\nDescription of Location of Point Number 178:\nA point on the center line of the Umatilla Bridge at center of the north main span of said bridge.\n179 45°55’59'.59 119°19’17'.20\n180 45°56’10'.26 119°17’47'.60\nDescription of Location of Point Number 180:\nA point on the axis of McNary Dam at the north face of the south nonoverflow section.\n181 45°56’15'.24 119°17’05'.76\n182 45°56’24'.05 119°15’21'.40\n183 45°55’58'.60 119°13’28'.22\n184 45°55’40'.97 119°11’39'.82\n185 45°55’40'.26 119°10’05'.04\n186 45°55’58'.55 119°07’30'.72\n187 45°56’34'.25 119°05’32'.00\n188 45°57’31'.28 119°03’37'.36\n189 45°58’09'.33 119°01’33'.95\n190 45°58’45'.73 119°00’27'.12\n191 45°00’00'.00 118°59’10'.12\nARTICLE III.\nRATIFICATION AND EFFECTIVE DATE\nThis compact shall become operative when it has been ratified by the legislatures of the States of Oregon and Washington and approved by the Congress of the United States and the Constitutions of the States of

ct shall become operative when it has been ratified by the legislatures of the States of Oregon and Washington and approved by the Congress of the United States and the Constitutions of the States of Oregon and Washington have been amended to authorize the establishment of the boundary as herein provided.\n______________________________________________________________________________ [1957 c.94 §2]\nNote:\nThe descriptions of the locations of points in Article II of the compact are as of 1957.\nFor ratification of compact by Washington legislature see chapter 90, Laws of 1957, (RCW 43.58.050–RCW 43.58.090), effective March 13, 1957.\nFor amendment to Washington Constitution authorizing establishment of boundary as provided in compact see Amendment 33 to Article XXIV, §1, Washington Constitution, approved November 4, 1958, and proclaimed December 4, 1958, by Governor to be approved.\nFor approval of compact by Congress see Public Law 85-575, dated July 31, 1958, 72 Stat. 455 (1958).\nEffective date of Oregon constitutional amendment (Const. Art. XVI) authorizing establishment of boundary as provided in compact is December 3, 1958.