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Latest revision as of 20:33, 3 August 2022

Bioretention device cost estimate worksheet.
Link to this table

Project Title
Owner
Location
Project Number
Date
Description Units Quantity Unit Cost Total Estimated Price
Site Preparation
Tree removal - up to 12" diameter each $350.00 $0.00
Clear and grub brush square yard $1.50 $0.00
Tree protection - temp. fence lineal foot $3.00 $0.00
Topsoil - 6" depth, salvage on site square yard $4.50 $0.00
Site Formation
Excavation - 4' average depth square yard $10.00 $0.00
Grading square yard $1.50 $0.00
Hauling off-site square yard $5.50 $0.00
Structural Components
Underdrain - with pea gravel and geotextile lineal foot $30.00 $0.00
Inlet structure each $1,500.00 $0.00
Outlet structure each $2,500.00 $0.00
Site Restoration
Filter strip square yard $0.00 $0.00
Soil preparation square yard $30.00 $0.00
Seeding - above outlet elevation square yard $0.50 $0.00
Planting - below outlet elevation square yard $30.00 $0.00
Mulch square yard $5.00 $0.00
Subtotal $0.00
10% Contingencies $0.00
Subtotal $0.00
Apply MN Location Factor $0.00
TAL CONSTRUCTION COST $0.00
Annual Operation and Maintenance
Debris removal per visit $50.00 $0.00
Weed control per visit $50.00 $0.00
Sediment removal per yeart $500.00 $0.00
Replace planting media square yard $12.00 $0.00
Replace plants per plant $5.00 $0.00
Mow filter strips per visit $50.00 $0.00
Erosion repair square yard $75.00 $0.00
Inspection per visit $125.00 $0.00
Subtotal $0.00
Apply MN Location Factor $0.00
TOTAL ANNUAL O&M COST $0.00
Minnesota Location Factors
Bemidji 0.963
Brainerd 1.003
Detroit Lakes 0.962
Duluth 0.991
Mankato 0.990
Bemidji 0.963
Minneapolis 1.035
Rochester 0.983
St. Paul 1.000
St. Cloud 1.002
Thief River Falls 1.042
Willmar 0.961
Windom 0.935

Note: Suggested unit costs are based on RS Means prices for Spring, 2005, then factored into an area basis based on typical design features for Constructed Wetlands BMPs. To be used for preliminary cost estimation

This page was last edited on 3 August 2022, at 20:33.