Costing Bike/Ped Projects requires a wide range of considerations beyond material and labor, especially when federal grants and public lands are involved
Getting good cost data is difficult. So much depends on the quality of competition for bid jobs, timing, and government overhead when public funds and lands are involved. For example, TDOT initially estimated a USBRS signage project at $38,000, but when put out for quotes the cost had risen to $380,000. The following are additional guiedance for creating a project cost estimate.
These listed cost estimates are a planning guide and do not include extra costs such as land acquisition, utility relocation, roadway size, drainage, final materials used, grading, land clearing and demolition, inspection, surveying and legal administration.
Costs for Pedestrian and Bicyclist Infrastructure Improvements A Resource for Researchers, Engineers, Planners, and the General Public
by Max A. Bushell, Bryan W. Poole, Charles V. Zegeer, Daniel A. Rodriguez
UNC Highway Safety Research Center Prepared for the Federal Highway
Administration and supported by the Robert Wood Johnson Foundation