if you travel westbound on walnut grove rd from i-5 or the thornton area the speed limit is 55 then 45 then 35 before you get to the river, just before you get to the river the road makes a sharp right curve by race track rd, once around the curve speed limit drops to 25 and there he sits in a white highway patrol car, sometimes in other spots in the same stretch of road getting people going opposite direction, he will be there a few days then not there then return again.