Southwest Washington Regional Transportation Council

Fourth Plain Bl. / Grand Bl.

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 (Grand Bl.)

Year NB ADT SB ADT ADT NB PM SB PM NB AM SB AM
2019570642149921561321317372
2018341334826895325293208309
2014341739527369337349138428
2010346734276893316254120362
2006452037358255417292198292
2002497245979569491394159287
19997922483512757744363342317
1998486445699433481346145253
19966287499811285636433207325
19950000000
1992475147189469473395145232
19900000000
19880000000
19850048890000

South Leg Traffic Counts (Grand Bl.)

Year NB ADT SB ADT ADT NB PM SB PM NB AM SB AM
20195552551811070527402326504
20185308586611174391497511379
20144967520610173474387235506
2010492549929916428369176487
20067811615813969682514345399
20026560578212342590450257366
19997692699814690631506343417
19986746656213307579483279400
19967362730514668627618297408
19950000000
19926696542812124550423282291
19900000000
1988602057121173255746400
1985600159011190252941400

East Leg Traffic Counts (Fourth Plain Bl.)

Year EB ADT WB ADT ADT EB PM WB PM EB AM WB AM
201983271067419001776791312666
20189116838617502808613271635
20148465827116735790594259681
20108439820216641741602242522
20068643814016783743586280473
200210327982220149952723226542
1999109901022021210958672422540
199810027913019157882653343480
19961085610012208671015717345555
19951128310855221389917550553
199210232953919771907629251516
19901094010322212611017772757643
19880000000
1985094070062000

West Leg Traffic Counts (Fourth Plain Bl.)

Year EB ADT WB ADT ADT EB PM WB PM EB AM WB AM
201978521013817989714639308744
20188737838617122827613272635
20140000000
20108102778515887766570231460
20068893825817151770600288450
20028722959718319826681271543
199910953987120824925681422526
199810101924019341914627379506
1996106739833205061004703335531
19950000000
199210409951719926911667246526
19901140610346217521064721795639
19880000000
19851048200921000