410GradeStabilizationStructure.xls - USDA

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410GradeStabilizationStructure.xls - USDA Powered By Docstoc
					Montana
Typical Implementation Scenario
A structure installed in an irrigation ditch to stop erosion and headcutting. May be constructed as drop pipe using CMP or
HDPE pipe or could be concrete, timber, or steel drop structure. Flow capacity is greater than 15 cfs.
Costs shown are the average of 1/2 round cmp check, straight drop pipe, concrete drop, and timber drop.
A structure used to control the grade and head cutting in a natural or artificial channels.
Use the link below to find the cppe worksheet for the practice identifed above that identifies the resource concerns this prac
http://www.nrcs.usda.gov/technical/Standards/nhcp.html
The main resource concern addressed is soil erosion.

Geographic Area:                            Statewide

Unit for Cost Estimate:                     No.
Practice Life (Years):                      15
Discount Rate:                              3.9%

Materials
CMP, steel, treated lumber, HDPE, concrete, etc

Equipment/Installation
Backhoe, excavator, skid steer, dump truck, etc; including labor

Labor
Included in Equipment/Installation

Mobilization
None

Operation & Maintenance (Annual)
1% of installation

Acquisition of Technical Knowledge
None

Forgone Income
None

Risk
None

Administration & Permit Costs
None

Total Cost Estimate:

Associated Practices: Critical Area Planting, Structure for Water Control

Data Source:
Montana NRCS Missoula Area Senior Engineer
2003 & 2005 structures installed in the CB area; adjusted for inflation.

Not much detail was available from the 1 2007 installation (Stillwater Co.). However, information indicated a cost of $5700.
A query of PRS report 2.22 on 6/11/08 showed that only 1 grade stabilization structure was applied in Montana in FY 2007.
As such, this practice code was deemed "Not Significant".

The cost estimate for structures > 15 cfs was obtained by multiplying 3150 x 2.5 = 7875 or $7900.
No change for 2010
eadcutting. May be constructed as drop pipe using CMP or
e. Flow capacity is greater than 15 cfs.
t drop pipe, concrete drop, and timber drop.
ural or artificial channels.
 dentifed above that identifies the resource concerns this practice addresses.




                                                                                 Cost/Unit

                                                                                 $2,755.00


                                                                                 $5,120.00


                                                                                     $0.00


                                                                                     $0.00


                                                                                    $78.75


                                                                                     $0.00


                                                                                     $0.00


                                                                                     $0.00


                                                                                     $0.00


                                                                                 $7,953.75




lwater Co.). However, information indicated a cost of $5700.
de stabilization structure was applied in Montana in FY 2007.


iplying 3150 x 2.5 = 7875 or $7900.
Montana
Typical Implementation Scenario
A structure installed in an irrigation ditch to stop erosion and headcutting. May be constructed as drop pipe using CMP or
HDPE pipe or could be concrete, timber, or steel drop structure. Flow capacity is 5 to 12 cfs.
Costs shown are the average of 1/2 round cmp check, straight drop pipe, concrete drop, and timber drop.
A structure used to control the grade and head cutting in a natural or artificial channels.
Use the link below to find the cppe worksheet for the practice identifed above that identifies the resource concerns this prac
http://www.nrcs.usda.gov/technical/Standards/nhcp.html
The main resource concern addressed is soil erosion.

Geographic Area:                            Statewide

Unit for Cost Estimate:                     No.
Practice Life (Years):                      15
Discount Rate:                              3.9%

Materials

CMP, steel, treated lumber, HDPE, concrete, etc

Equipment/Installation
Backhoe, excavator, skid steer, dump truck, etc; including labor

Labor
Included in Equipment/Installation

Mobilization
None

Operation & Maintenance (Annual)
1% of installation

Acquisition of Technical Knowledge
None

Forgone Income
None

Risk
None

Administration & Permit Costs
None

Total Cost Estimate:

Associated Practices: Critical Area Planting, Structure for Water Control

Data Source:
Montana NRCS Missoula Area Senior Engineer
2003 & 2005 structures installed in the CB area; adjusted for inflation.
Not much detail was available from the 1 2007 installation (Stillwater Co.). However, information indicated a cost of $5700.

A query of PRS report 2.22 on 6/11/08 showed that only 1 grade stabilization structure was applied in Montana in FY 2007.
As such, this practice cost was not increased.

The cost estimate for structures > 15 cfs was obtained by multiplying 3150 x 2.5 = 7875 or $7900.
No change for 2010
eadcutting. May be constructed as drop pipe using CMP or
e. Flow capacity is 5 to 12 cfs.
t drop pipe, concrete drop, and timber drop.
ural or artificial channels.
 dentifed above that identifies the resource concerns this practice addresses.




                                                                                 Cost/Unit

                                                                                 $1,102.00



                                                                                 $2,048.00


                                                                                     $0.00


                                                                                     $0.00


                                                                                    $31.50


                                                                                     $0.00


                                                                                     $0.00


                                                                                     $0.00


                                                                                     $0.00


                                                                                 $3,181.50
lwater Co.). However, information indicated a cost of $5700.

de stabilization structure was applied in Montana in FY 2007.


iplying 3150 x 2.5 = 7875 or $7900.

				
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posted:6/26/2011
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