6.9. SR 06-18-2007 - Laserfiche WebLink

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SUMMARY OF PRELIMINARY EVALUATION ELK RIVER HIGHWAY 169 PRELIMINARY DESIGN AND ENVIRONMENTAL DOCUMENTATION June 4, 2007 SOUTH OF COUNTY HIGHWAY 33 SUB-AREA A. Improvements Grouped into Sub-Area . Jackson / I 93rd / 197th Avenue Area Main / School Street Area Highway 10 / 10 I / 169 Interchange . . B. Build Alternatives Considered Jackson / 193rd / 197th Avenue The design team considered two main build alternatives for the Jackson / 193rd / 197th Avenue area. These main build alternatives are: . Alternative DI (1)_ Split Diamond Interchange with Partial Access at 193rd Avenue: this interchange alternative provides a bridge over Highway 169 at I 97th A venue along with access to and from Highway 169 to and from the north, and a southbound slip ramp from 197th Avenue to Holt Street. Alternative DI also provides a bridge over Highway 169 at Jackson / 193rd Avenue along with access to and from Highway 169, but does not accommodate southbound exits from Highway 169 to Jackson / 193rd Avenue. . Alternative D2 - Split Diamond Interchange with Full Access at 193rd Avenue: this interchange alternative also provides a bridge over Highway 169 at I 97th A venue along with access to and from Highway 169 to and from the north. This alternative also provides a bridge over Highway 169 at Jackson /193rd Avenue along with access to and from Highway 169 in all directions. Both alternatives require land from parcels along the proposed 197th A venue interchange ramps, relocation of buildings and businesses in the southeast quadrant of the Jackson / 193rd Avenue interchange, and provide no driveway access to 193rd Avenue between Evans Street and Dodge Avenue. However, full access at 193rd will lessen the traffic related impacts at the 193rd/Jackson Avenue intersection, west of Highway 169, near the cemetery. Therefore, since the impacts of the two alternatives are similar, but Alternative D2 provides full access to Highway 169 at Jackson / 193rd A venue, the design team and the Local Advisory Committee selected Alternative D2 as the Preferred Alternative. Main / School Street Area The design team considered three main build alternatives for the Main / School Avenue area. These main build alternatives are: . Alternative BC 1 - Main Street Interchange with School Street Overoass: this alternative provides a full access interchange a Main Street and a bridge over Highway 169 at School Street, but no access to or from Highway 169. Other key characteristics of this alternative include: o No Highway 169 access at School Street forces all traffic wanting to access Highway 169 at School Street to the Main Street or the Jackson / 193rd Avenue interchange. o Excessive traffic on the frontagelbackage roads. o Excessive traffic exiting at Main Street. o High potential for overload ofthe Main Street interchange. II) Electronic, color copies of the layouts are available on the project website's "Maps" page: http://projects.dot.state. mn. us/srf/ 16gelkriverlmaps. html