Southwest Washington Regional Transportation Council

NE 129th St. / Hwy. 99

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 (Hwy. 99)

Year NB ADT SB ADT ADT NB PM SB PM NB AM SB AM
20228816896417780661717590557
20190000000
20170000000
20150000000
20110000000
20098175787416049637709501378
200210120890419024905744752507
19970000000

South Leg Traffic Counts (Hwy. 99)

Year NB ADT SB ADT ADT NB PM SB PM NB AM SB AM
20220000000
20197915875616671620807508352
20177823849116314620774503366
20157819879316612541715464304
20116506742513931501701474289
20090000000
200210164860618770978800732465
19970000000

East Leg Traffic Counts (NE 129th St.)

Year EB ADT WB ADT ADT EB PM WB PM EB AM WB AM
20220000000
20190000000
20170000000
20150000000
20110000000
20090000000
20021505149830021191887632
19970000000

West Leg Traffic Counts (NE 129th St.)

Year EB ADT WB ADT ADT EB PM WB PM EB AM WB AM
20220000000
20190000000
20170000000
20150000000
20110000000
20090000000
200222862203448920230221697
199720682061412918423714530