Southwest Washington Regional Transportation Council

Mill Plain Bl. / Columbia St.

Use the tabs below to select various information provided for this intersection. The first tab offers a map of the intersection location, and a means of locating nearby count locations. Data for each intersection is offered by “leg” which is, at times, not entirely intuitive. Waving your mouse over the names above should clear up any ambiguities. Directional Average Weekday (24 hour average), AM Peak Hour (7-8 a.m.), PM Peak Hour (peak hour between 4-6 p.m.), and PM Peak Turn Movement (right, left, and through), are included in the summary. The final tab provides scanned PDF documents (where available) of the original count data for this intersection.

Aerial Map

 

North Leg Traffic Counts (Columbia St.)

Year NB ADT SB ADT ADT NB PM SB PM NB AM SB AM
20180000000
20120000000
20090000000
20060000000
20030000000
20010000000
199613574180553718833526346
199320163874589021627050289
19900000000
19810000000

South Leg Traffic Counts (Columbia St.)

Year NB ADT SB ADT ADT NB PM SB PM NB AM SB AM
2018452434808003462214131344
20120000000
2009353525556091364198104257
20060000000
20030000000
20010000000
199641413067720845020491300
199336283096672440720085248
1990390439017805482335414436
198140353941797647025400

East Leg Traffic Counts (Mill Plain Bl.)

Year EB ADT WB ADT ADT EB PM WB PM EB AM WB AM
201812667012667114707280
201210500010500100006830
200910247010247100106160
20061029101029196306510
200398150981590205590
200178730787373703990
199661030610374001390
199365370653740701120
1990544600737000
19810000000

West Leg Traffic Counts (Mill Plain Bl.)

Year EB ADT WB ADT ADT EB PM WB PM EB AM WB AM
20180000000
201278680786870405970
200984670846778005120
200682800828071506010
200367620676261704590
200157790577949703770
199637800378045201350
199338210382161801070
19900000000
19810000000