Final Report - VHB.com

The estimate worksheet 21 identifies key cost items, including the following:
roadway length and typical section used to develop cost
bicycle path length and typical section used to develop cost
guard rail
retaining walls and bridges
clearing and grubbing
loam and seed
earthwork (i.e., excavation and embankment volumes)
drainage and miscellaneous item percentages
maintenance of traffic and uniform officers percentages
general interchange and intersection lighting
signal costs
water-quality and pollution-control items
number of detention basins
mobilization
overhead sign structures
construction engineering and contingencies
Right-of-Way Cost Estimates
Establishing order-of-magnitude cost estimates for ROW acquisition needs for the
five strategies first involved establishing the existing property and ROW
boundaries. Information pertaining to ROW and property in the Study Area was
obtained from 2008 and 2009 GIS parcel mapping, including assessment records
provided by the Towns of Brunswick and Topsham, respectively. Using the
construction impact footprint developed for each strategy and option where
additional ROW acquisitions would be necessary, new ROW boundaries were
developed to establish the potential property acquisitions needed to construct and
maintain the proposed improvement. By comparing the proposed ROW needs for
each option with the existing ROW boundaries, the areas of land and building
acquisitions were established.
The estimated costs of the takings and acquisitions impacts for each option were
based on the values of real property contained in the assessment database for the two
communities. Assessed value does not necessarily reflect the actual purchase price
that might be achieved through a negotiated transaction for each potentially
Conclusions 141