1A, Safe Routes to School Project Update

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Safe Routes to School Project Review - 03/16/09 BUDGET When the grant was written in 2007, the preliminary cost .estimate for this project was $263,145.60. After completing a refined environmental investigation and revising the plans to meet the Rice Creek Watershed District's (RCWD) wetland protection requirements, the engineer's estimate is $442,665.37. Below is the breakdown of project costs. PROJECT COSTS GRANT ENGINEER'S +/- ESTIMATE ESTIMATE Pathway $164,700 $179,171 ($14 4-'1 00) : ." , I" . ~ . .."" Retaining walls $66,375 ($66,375~OO) Drainage $9,300 $94,855 ($85~555~OO) Crosswalks $1,800 $1,800 - Signals $15,000 $15,000 - Hydrants $36,000 $36,000 - Engineering $35,345.60 $48,464.37 ($1 ,118.77) Evaluation $1,000 $1,000 - Total $263,145.60 $442,665.37 ($1 1,5 9fS 77) As shown, the engineer's estimate is higher than the preliminary estimate. This is mainly the result of items added to comply with the RCWD's wetland protection requirements and necessary drainage improvements. The preliminary plans for this project are attached (attachment Ib). A summary and explanation of the changes to the project estimate is as follows: 1. Pathway: The original estimate used 2007 construction unit prices. The increase to this portion of the project is the result of increases to construction costs in the last 2 years. Estimated cost: $14,471.00 2. Retaining Walls: In order to avoid impacts to the wetland, and keep the pathway on public land, it will be necessary to construct a retaining wall along the pathway east of the lift station road. This wall will be between 4 and 5 feet tall. Also, for safety, we will need to install a fence along this portion of the pathway. Estimated cost: $66,375.00. 3. Drainage: There are three main items that were identified as drainage needs for this proj ect. These were; the creek crossing in the Ramsey County Open Space, drainage improvements, and erosion control. . Creek Crossing: $75,,000 A portion of this project connects County Road E-2 to Venus Avenue through the Ramsey County Open Space. This open space contains DNR protected wetlands as well as a creek. Any modifications to the crossings or wetlands in this area require a permit from Rice Creek Watershed District. After reviewing the project with them, they are requiring that the new creek crossing be sized so it does not impe~e the flood plain of this natural drainage way. There are two ways that this could be accomplished; by constructing a bridge or by building a culvert. Since the cost to construct a bridge would be between $150-250,000, 2