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CSAH 10 as in 1983, 1988, and 1989, or when traffic was diverted away from CSAH 10 as in the Spring of 1992. The exaggerated numbers are as so extreme that in 1982 the AADT was 2,800, in 1983 up to 5,600 (1,000 higher than 1992) and in 1984 back down to 3,100. In 1986 the count stayed steady at 3,100, but in then next count in 1988 it more than doubled to 6,900. Discounting the irregular numbers, the realistic straight line projection for 2010 is 7,900. The downside risk of taking Alternate 6, and saving most of the associated wetlands, keeping the highway speed a level consistent with the residential development planned for the area is very low. The risk in building a 4 lane divided highway is that it would destroy the ecological value of the lake and adjacent seasonal wetlands, have a $2.8 million up front cost, have much greater maintenance costs, increase the impervious surfaces by a factor of 3, and probably end up as substantially underutillized as CSAH 13 between I-94 and 15th Street and State Highway 5 from Ideal to Jamaica. Proposal No. 5 would create an uncontrolled intersection with a convergence of 16 traffic lanes. There is no safe model for traffic flow with this size intersection without signalization. Correction of this omission will require Lake Elmo share with Oakdale a $100,000 cost. Costs: After spending less than $350,000 to resurface and provide paved shoulders for the 3 1/2 miles of CSAH 10 east of Inwood Avenue, the Washington County Public Works Department is now proposing to spend $2,800,000 for re -construction of one mile west of Inwood. The risk to spend, say only $ 500,000 to upgrade this one mile of CSAH 10 as recommended in Proposal 6 would be that at a later date more funds could be required to add two additional lanes from Helmo Avenue to a transition zone ending 1/8 mile east of Inwood Avenue. (Similar to Larpenter