Southwest Washington Regional Transportation Council

Fourth 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
19990000000
19960000000
19940000000
199221382050418924112155198
19880000000

South Leg Traffic Counts (Columbia St.)

Year NB ADT SB ADT ADT NB PM SB PM NB AM SB AM
199923922634502630019873299
199625322306483928815258229
19943457136248194111088777
199231502743589431215968266
19880058110000

East Leg Traffic Counts (Fourth Plain Bl.)

Year EB ADT WB ADT ADT EB PM WB PM EB AM WB AM
19990000000
19960000000
19940000000
19920000000
19880000000

West Leg Traffic Counts (Fourth Plain Bl.)

Year EB ADT WB ADT ADT EB PM WB PM EB AM WB AM
199998091037120181849595508703
19960000000
19940000000
19920000000
19880000000