Laserfiche WebLink
Minnesota Department of Transportation <br />Metropolitan Division <br />Golden Valley Office <br />2055 North Lilac Drive <br />Golden Valley, Minnesota 55422 <br />March 29, 1995 <br />Mr. Tim Cruikshank <br />Assistant to City Administrator <br />City of Mounds View <br />2401 Highway 10 • <br />Mounds View, MN 55112-1499 <br />Dear Mr. Cruikshank: <br />In response to your telephone conversation with Harvey Scheffert on March 22, 1995 and <br />your request to review the design for a portion of the inplace concrete post and wood <br />planking noise barrier located at County Road J and Airport Road, we are providing the <br />following information. <br />The existing condition has been reviewed by Mn/DOTs Geometric, Pre -Design, Noise <br />Abatement, and Final Design nits. The intersection and noise barrier as constructed <br />exceeds minimal horizontal sight distance standards for passenger vehicles which we <br />normally design for with an intersection of this type. The minimum sight distance for a stop <br />condition (2 lane roadway on County Road J and 45 m.p.h. speed) is 450 feet. Please refer <br />to the enclosed plan view that identifies and details the two scenarios: <br />1. A vehicle stopped at County Road J and continuing across County Road <br />J and northward on Airport Road. <br />2. A vehicle stopped at County Road J and making a left turn on County <br />Road J to go west. <br />It should be noted that in both cases identified above. a passenger vehicle has the <br />opportunity to stop in the median of the crossover on County Road J, if required. (Trucks <br />using this crossover in the two scenarios mentioned would not have the opportunity to stop <br />in the median area. Trucks would also need additional sight distance to traverse the <br />intersection, due to the truck length and slower rate of acceleration. However, it would <br />seem that few semi -trucks would be using 35th Avenue and making this maneuver.) Also, <br />vehicles may encroach on the 10 feet (D) distance shown on figure 5-2.01B, to increase <br />driver sight distance. <br />With this investigation, we have confirmed that the intersection and noise barrier <br />configuration, as constructed, meets Mn/DOT's standard horizontal sight distance <br />requirements for this type of intersection. <br />An Equal Opportunity Employer <br />