Southwest Washington Regional Transportation Council

NW 99th St. / NW 11th Av.

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 (NW 11th Av.)

Year NB ADT SB ADT ADT NB PM SB PM NB AM SB AM
202110569552011110855093
20171187110322901388247142
20069888461835519610766
200310919822073123822591
1990884800168413275089
19870000000
19850014080000

East Leg Traffic Counts (NW 99th St.)

Year EB ADT WB ADT ADT EB PM WB PM EB AM WB AM
20210000000
20170000000
200607918008470342
20038131846016591613886700277
199055035633111364767650181
19870000000
19850058520000

West Leg Traffic Counts (NW 99th St.)

Year EB ADT WB ADT ADT EB PM WB PM EB AM WB AM
20210000000
20170000000
200668460065305730
20037277731914595534740605262
1990630647301103652869400
19870085720000
19850039280000