Stormwater wetland 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 - deepwater zone - 4' average depth square yard $5.00 $0.00
Excavation - marsh zone - 1' average depth square yard $1.00 $0.00
Grading square yard $1.50 $0.00
Hauling off-site - 5' depth square yard $5.00 $0.00
Structural Components
Inlet structure each $2,000.00 $0.00
Outlet structure each $3,500.00 $0.00
Site Restoration
Sod - above vegetative bench square yard $4.50 $0.00
Soil preparation square yard $25.00 $0.00
Seeding - vegetative bench square yard $0.50 $0.00
Planting square yard $30.00 $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 $100.00 $0.00
Remove invasive plants per visit $500.00 $0.00
Replant wetland vegetation per plant $10.00 $0.00
Repair erosion square yard $75.00 $0.00
Sediment removal and disposal cubic yard $10.00 $0.00
Mow per visit $150.00 $0.00
Gate / valve operation per visit $125.00 $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 15 July 2015, at 15:21.

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