Attachment E Construction Packet.pdf

TX-ENG-38-XL, Page 1 Waterway_TX_2020_R1.xlsm, 10/21/2020

USDA, NRCS, Texas

Grassed Waterway Data Sheet - WWCALC Cooperator: County:

I.D. #: Location:

Job Class: I Field #: 1 Waterway #:

Additional Notes:

Date

II 10/12/2021

All Bermuda

17.3 Inputs

43.86

Parabolic

24.00

1.00

0.5

2.2

2.4

C

D

2.74 3.50

Design for Capacity Units

1.00 ft.

24.00 ft.

16.03 sqft

24.11 ft.

0.66 ft.

2.74 fps 1.82

0.061 5.60

C Critical Depth, ft.

24.00 ft. 0.70

1.50 ft. Critical Velocity, fps

29.38 ft. 3.89

Area, acres

#VALUE!

0.44

Calculations: I:\CHUCK9718\COMPUTER\AAW22\ARS-SOUTH FIELD\LAYERS\WW-1\[ARS_Waterway_TX_2020_R1-WW1-SF2-NORTH.xlsm

Design for Stability

3. Computed with a parabolic top width, varied depth and velocities.

0.85 22.10 12.52 22.19 0.56 3.50 1.98

0.045

Final Base Area:

Planned Construction Area:

Planned Base Area:

Final Construction Area:

Average Width, ft

1.35 Top Width with Freeboard

Manning's N factor CI, Cover Index

Manning's Retardance Class 4.44

D 22.10

Total Length, ft.Area

Depth with Freeboard Top Width

27.86

Vegetation

Stability Velocity, fps

Capacity Channel Grade, %

Field map: sketch of waterway, benchmark, and north arrow.

Capacity Retardance / CI

Stability Retardance / CI

Drainage Area Acres

Capacity Velocity, fps

Top Width,ft.

Depth,ft.

Side Slope, ratio

I have EJAA ClassEngineering Approval

CHUCK TONN

Signature

Designed by

Computations Checked by

Wetted Perimeter Hydraulic Radius

Velocity VR factor

Design Certification: With my signature below, I certify to the best of my professional knowledge, judgement, and belief, these plans meet applicable NRCS Standards.

WW 1. NORTH

BLACKLAND RD.

Bell TX_BASR-BLACKLAND SOUTH FIELD

Parameters

Cross Section Area Top Width

Depth

Shape: Trapezoid/Parabolic

Approved by

Parameters

Design Review by

Flow rate, cfs

Free Board, ft.

Stability Channel Grade, %

Stations

N

CENTRAL TEXAS

ARS-BLACKLAND

PLACE SPOIL TO LOW SIDE OF CHANNEL.

BELTON

BLACKLAND RD.

2. SOUTH OF

STATION:

1. NORTH .44 TENTHS AC.

ALL

32 FT.

1.5 FT.

1.125FT. 1.125FT.

8 FT. 8 FT.

ESTIMATED LENGTH = 600 FT.

CDT

12/6/2021

GS-412-1

NATURAL RESOURCES CONSERVATION SERVICE

CONSERVATION PRACTICE GENERAL SPECIFICATIONS

GRASSED WATERWAY

(Acre)

CODE 412

Conservation practice general specifications are reviewed periodically, and updated if needed. To obtain the current version of this standard, contact the Natural Resources Conservation Service.

NRCS, TEXAS

June, 2002

1. SCOPE

Work shall consist of shaping the waterway channel and placing excavated material as specified.

2. LOCATION

The planned location of the waterway shall be as shown on furnished drawings or as staked in the field.

3. PUBLIC AND PRIVATE UTILITIES

Utilities are defined to be overhead and underground power or communication lines, and pipelines. All utilities discovered to be in the work area are shown on the drawings or sketches.

However, the absence of indicators on the drawings or sketches does not assure the nonexistence of utilities in the work area. The contractor is alerted to conduct his/her own search and discovery for utilities in order to lessen or avoid potential damages. The owner/operator shall complete TX-ENG-80, UTILITIES INVENTORY prior to layout or any ground disturbance and return it to an NRCS representative.

4. SITE PREPARATION

All trees stumps, brush, and other objectionable material that will interfere with construction or proper functioning of the waterway shall be removed from the site and disposed of in a manner consistent with environmental concerns and proper functioning of the waterway.

5. DIMENSIONS OF INSTALLATION

Waterways shall be constructed to the grade and dimensions shown on the plans, specified on furnished drawings, or as staked in the field.

6. MATERIAL

Excavated material will be used to construct side banks, roads, or other fills as specified. Topsoil shall be stockpiled and re-spread where necessary to provide a seedbed for the grass. Seedbed preparation; time of seeding; seeding mixture and rate; stabilizing crop; mulching; or mechanical means of stabilization; and fertilizer and lime requirements shall be provided to the owner/operator for the waterway and other disturbed areas after construction is complete.

Any spoil shall be spread where it will not interfere with flow into the waterway. If necessary, excess water shall be diverted away until vegetation is established. Any protective measures shall then be removed, and the disturbed areas that are not to be farmed shall be seeded to permanent grass.

7. MEASUREMENT

E. ESTIMATED CHANNEL AREA = 0.44 AC.

0-6+00FT.

32 FT.

1.5 FT.

16/16 FT.

32 FT.

1.5 FT.

ARS-BLACKLAND Grass Waterway 1. NORTH Method 1. Above will be used in Checkout of Waterway Construction.

FIELD 2. SOUTH OF STATION.

W.W. # 1. NORTH by Blackland Road.

Chuck.Tonn Highlight

Chuck.Tonn Highlight

412-1

NRCS, TEXAS

November 2015

UNITED STATES DEPARTMENT OF

AGRICULTURE NATURAL RESOURCES

CONSERVATION SERVICE BELL COUNTY, TEXAS

OPERATION AND MAINTENANCE PLAN

GRASSED WATERWAY

Date: 12-6-2021 Producer/Land user: ARS-BLACKLAND

Address: Address 1

Address 2

Description of practice location: Tract No. Farm No. Field No. 2. SOUTH OF STATION

A properly operated and maintained Grassed Waterway is an asset to your farm. This Grassed Waterway was designed and installed to stabilize an eroding area and to safely convey runoff from the drainage area. The estimated life span of this installation is at least 10 years. The life of this practice can be assured and usually increased by developing and carrying out a good operation and maintenance program.

This practice will require you to perform periodic maintenance and may also require operational items to maintain satisfactory performance. Here are some recommendations to help you develop a good operation and maintenance program.

GENERAL RECOMMENDATIONS

• Establish a maintenance program to maintain waterway capacity, vegetative cover, and outlet stability. Vegetation damaged by machinery, herbicides, or erosion must be repaired promptly.

• Protect the waterway from concentrated flow by using diversion of runoff or mechanical means of stabilization such as silt fences, mulching, hay bale barriers and etc. to stabilize grade during vegetation establishment.

• Minimize damage to vegetation by excluding livestock whenever possible, especially during wet periods. Permit grazing in the waterway only when a controlled grazing system is being implemented.

• Inspect grassed waterways regularly, especially following heavy rains. Fill, compact, and reseed damaged areas immediately. Remove sediment deposits to maintain capacity of grassed waterway.

412-2

Contact your local Natural Resources Conservation Service office for any additional technical assistance you might need for implementation of this Operation and Maintenance Plan for your conservation practice.

NRCS, TEXAS

November 2015

• Avoid use of herbicides that would be harmful to the vegetation or pollinating insects in and adjacent to the waterway area.

• Avoid using waterways as turn-rows during tillage and cultivation operations.

• Mow or periodically graze vegetation to maintain capacity and reduce sediment deposition. Mowing may be appropriate to enhance wildlife values, but must be conducted to avoid peak nesting seasons and reduced winter cover.

• Apply supplemental nutrients as needed to maintain the desired species composition and stand density of the waterway.

• Control noxious weeds.

• Do not use waterways as a field road. Avoid crossing with heavy equipment when wet.

• Lift tillage equipment off the waterway when crossing and turn off chemical application equipment.

• Remove all foreign debris that hinders system operation.

• Eradicate or otherwise remove all rodents or burrowing animals. Immediately repair any damage caused by their activity.

SPECIFIC RECOMMENDATIONS FOR YOUR INSTALLATION

• Specific Recommendations

USDA, NRCS, Texas Grassed Waterway Data Sheet - WWCALC

Cooperator: County:

I.D. #: Location:

Job Class: I Field #: 2 Waterway #:

Additional Notes:

Date

II 12/6/2021

All Bermuda

12.6 Inputs 48.64

Parabolic 28.50 1.02

0.5 1.9 C D

2.50 3.18

Design for Capacity Units

1.02 ft.

28.50 ft.

19.44 sqft

28.60 ft.

0.68 ft.

2.50 fps 1.70 0.063 5.60

C Critical Depth, ft.

28.50 ft. 0.67

1.52 ft. Critical Velocity, fps

34.77 ft. 3.80

Area, acres

#VALUE!

0.30

Calculations: I:\CHUCK9718\COMPUTER\AAW22\ARS-SOUTH FIELD\LAYERS\WW-2\[ARS_Waterway_TX_2020_R1-WW2-MIDDLE.xlsm

Design for Stability

3. Computed with a parabolic top width, varied depth and velocities.

0.87 26.32 15.31 26.40 0.58 3.18 1.84 0.046

Final Base Area:

Planned Construction Area:

Planned Base Area:

Final Construction Area:

Average Width, ft

1.37 Top Width with Freeboard

Manning's N factor CI, Cover Index

Manning's Retardance Class 4.44

D 26.32

Total Length, ft.Area

Depth with Freeboard Top Width

33.01

Vegetation

Stability Velocity, fps

Capacity Channel Grade, %

Field map: sketch of waterway, benchmark, and north arrow.

Capacity Retardance / CI Stability Retardance / CI

Drainage Area Acres

Capacity Velocity, fps

Top Width,ft.

Depth,ft.

Side Slope, ratio

I have EJAA ClassEngineering Approval

CHUCK TONN

Signature

Designed by Computations Checked by

Wetted Perimeter Hydraulic Radius

Velocity VR factor

Design Certification: With my signature below, I certify to the best of my professional knowledge, judgement, and belief, these plans meet applicable NRCS Standards.

SOUTH FIELD WW 2. MIDDLE

BLACKLAND RD.

Bell TX_BASR-BLACKLAND

Parameters

Cross Section Area Top Width

Depth

Shape: Trapezoid/Parabolic

Approved by

Parameters

Design Review by

Flow rate, cfs

Free Board, ft.

Stability Channel Grade, %

PLACE SPOIL TO LOW SIDE OF CHANNEL.

BELTON

BLACKLAND RD.

2. SOUTH OF

STATION:

2. MIDDLE .3 TENTHS AC.

ALL

35 FT.

1.5 FT.

1.125FT. 1.125FT.

8.75 FT. 8.75 FT.

ESTIMATED LENGTH = 350 FT.

CONSERVATION PRACTICE GENERAL SPECIFICATIONS

GRASSED WATERWAY

(Acre)

CODE 412

Conservation practice general specifications are reviewed periodically, and updated if needed. To obtain the current version of this standard, contact the Natural Resources Conservation Service.

NRCS, TEXAS

June, 2002

1. SCOPE

Work shall consist of shaping the waterway channel and placing excavated material as specified.

2. LOCATION

The planned location of the waterway shall be as shown on furnished drawings or as staked in the field.

3. PUBLIC AND PRIVATE UTILITIES

Utilities are defined to be overhead and underground power or communication lines, and pipelines. All utilities discovered to be in the work area are shown on the drawings or sketches.

However, the absence of indicators on the drawings or sketches does not assure the nonexistence of utilities in the work area. The contractor is alerted to conduct his/her own search and discovery for utilities in order to lessen or avoid potential damages. The owner/operator shall complete TX-ENG-80, UTILITIES INVENTORY prior to layout or any ground disturbance and return it to an NRCS representative.

4. SITE PREPARATION

All trees stumps, brush, and other objectionable material that will interfere with construction or proper functioning of the waterway shall be removed from the site and disposed of in a manner consistent with environmental concerns and proper functioning of the waterway.

5. DIMENSIONS OF INSTALLATION

Waterways shall be constructed to the grade and dimensions shown on the plans, specified on furnished drawings, or as staked in the field.

6. MATERIAL

Excavated material will be used to construct side banks, roads, or other fills as specified. Topsoil shall be stockpiled and re-spread where necessary to provide a seedbed for the grass. Seedbed preparation; time of seeding; seeding mixture and rate; stabilizing crop; mulching; or mechanical means of stabilization; and fertilizer and lime requirements shall be provided to the owner/operator for the waterway and other disturbed areas after construction is complete.

Any spoil shall be spread where it will not interfere with flow into the waterway. If necessary, excess water shall be diverted away until vegetation is established. Any protective measures shall then be removed, and the disturbed areas that are not to be farmed shall be seeded to

0-3+50FT.

35 FT.

1.5 FT.

17/18 FT.

E. ESTIMATED CHANNEL AREA = 0.30 AC.

35 FT.

1.5 FT.

ARS-BLACKLAND Grass Waterway 2. MIDDLE Method 1. Above will be used in Checkout of Waterway Construction.

FIELD 2. SOUTH OF STATION.

W.W. # 2. MIDDLE of Field West Side.

Chuck.Tonn Highlight

November 2015

UNITED STATES DEPARTMENT OF

AGRICULTURE NATURAL RESOURCES

CONSERVATION SERVICE BELL COUNTY, TEXAS

OPERATION AND MAINTENANCE PLAN

GRASSED WATERWAY

Date: 12-6-2021 Producer/Land user: ARS-BLACKLAND

Address: Address 1

Address 2

Description of practice location: Tract No. Farm No. Field No. 2. SOUTH OF STATION

A properly operated and maintained Grassed Waterway is an asset to your farm. This Grassed Waterway was designed and installed to stabilize an eroding area and to safely convey runoff from the drainage area. The estimated life span of this installation is at least 10 years. The life of this practice can be assured and usually increased by developing and carrying out a good operation and maintenance program.

This practice will require you to perform periodic maintenance and may also require operational items to maintain satisfactory performance. Here are some recommendations to help you develop a good operation and maintenance program.

GENERAL RECOMMENDATIONS

• Establish a maintenance program to maintain waterway capacity, vegetative cover, and outlet stability. Vegetation damaged by machinery, herbicides, or erosion must be repaired promptly.

• Protect the waterway from concentrated flow by using diversion of runoff or mechanical means of stabilization such as silt fences, mulching, hay bale barriers and etc. to stabilize grade during vegetation establishment.

• Minimize damage to vegetation by excluding livestock whenever possible, especially during wet periods. Permit grazing in the waterway only when a controlled grazing system is being implemented.

• Inspect grassed waterways regularly, especially following heavy rains. Fill, compact, assistance you might need for implementation of this Operation and Maintenance Plan for your conservation practice.

NRCS, TEXAS

November 2015

• Avoid use of herbicides that would be harmful to the vegetation or pollinating insects in and adjacent to the waterway area.

• Avoid using waterways as turn-rows during tillage and cultivation operations.

• Mow or periodically graze vegetation to maintain capacity and reduce sediment deposition. Mowing may be appropriate to enhance wildlife values, but must be conducted to avoid peak nesting seasons and reduced winter cover.

• Apply supplemental nutrients as needed to maintain the desired species composition and stand density of the waterway.

• Control noxious weeds.

• Do not use waterways as a field road. Avoid crossing with heavy equipment when wet.

• Lift tillage equipment off the waterway when crossing and turn off chemical application equipment.

• Remove all foreign debris that hinders system operation.

• Eradicate or otherwise remove all rodents or burrowing animals. Immediately repair any damage caused by their activity.

USDA, NRCS, Texas Grassed Waterway Data Sheet - WWCALC

Cooperator: County:

I.D. #: Location:

Job Class: I Field #: 2 Waterway #:

Additional Notes:

Date

II 5/30/2021

All Bermuda

3.5 Inputs 25.00

Parabolic 24.00 0.73

0.5 3.6 3.7 C D

2.15 2.82

Design for Capacity Units

0.73 ft.

24.00 ft.

11.62 sqft

24.06 ft.

0.48 ft.

2.15 fps 1.04 0.081 5.60

C Critical Depth, ft.

24.00 ft. 0.48

1.23 ft. Critical Velocity, fps

31.19 ft. 3.22

Area, acres

#VALUE!

0.25

Calculations: I:\CHUCK9718\COMPUTER\AAW22\ARS-SOUTH FIELD\LAYERS\WW-3\[ARS_Waterway_TX_2020_R1-WW3-SOUTH.xlsm

Design for Stability

3. Computed with a parabolic top width, varied depth and velocities.

0.61 21.92 8.86 21.97 0.40 2.82 1.14 0.055

Final Base Area:

Planned Construction Area:

Planned Base Area:

Final Construction Area:

Average Width, ft

1.11 Top Width with Freeboard

Manning's N factor CI, Cover Index

Manning's Retardance Class 4.44

D 21.92

Total Length, ft.Area

Depth with Freeboard Top Width

29.62

Vegetation

Stability Velocity, fps

Capacity Channel Grade, %

Field map: sketch of waterway, benchmark, and north arrow.

Capacity Retardance / CI Stability Retardance / CI

Drainage Area Acres

Capacity Velocity, fps

Top Width,ft.

Depth,ft.

Side Slope, ratio

I have EJAA ClassEngineering Approval

CHUCK TONN

Signature

Designed by Computations Checked by

Wetted Perimeter Hydraulic Radius

Velocity VR factor

Design Certification: With my signature below, I certify to the best of my professional knowledge, judgement, and belief, these plans meet applicable NRCS Standards.

SOUTH FIELD WW 3. SOUTH

BLACKLAND RD.

Bell TX_B

Designed for a 25 year storm event.

ASR-BLACKLAND

Parameters

Cross Section Area Top Width

Depth

Shape: Trapezoid/Parabolic

Approved by

Parameters

Design Review by

Flow rate, cfs

Free Board, ft.

Stability Channel Grade, %

PLACE SPOIL TO LOW SIDE OF CHANNEL.

BELTON

BLACKLAND RD.

2. SOUTH OF

STATION:

3. SOUTH .25 TENTHS AC.

ALL

32 FT.

1.2 FT.

.9 FT. .9 FT.

8 FT. 8 FT.

ESTIMATED LENGTH = 300 FT.

CONSERVATION PRACTICE GENERAL SPECIFICATIONS

GRASSED WATERWAY

(Acre)

CODE 412

Conservation practice general specifications are reviewed periodically, and updated if needed. To obtain the current version of this standard, contact the Natural Resources Conservation Service.

NRCS, TEXAS

June, 2002

1. SCOPE

Work shall consist of shaping the waterway channel and placing excavated material as specified.

2. LOCATION

The planned location of the waterway shall be as shown on furnished drawings or as staked in the field.

3. PUBLIC AND PRIVATE UTILITIES

Utilities are defined to be overhead and underground power or communication lines, and pipelines. All utilities discovered to be in the work area are shown on the drawings or sketches.

However, the absence of indicators on the drawings or sketches does not assure the nonexistence of utilities in the work area. The contractor is alerted to conduct his/her own search and discovery for utilities in order to lessen or avoid potential damages. The owner/operator shall complete TX-ENG-80, UTILITIES INVENTORY prior to layout or any ground disturbance and return it to an NRCS representative.

4. SITE PREPARATION

All trees stumps, brush, and other objectionable material that will interfere with construction or proper functioning of the waterway shall be removed from the site and disposed of in a manner consistent with environmental concerns and proper functioning of the waterway.

5. DIMENSIONS OF INSTALLATION

Waterways shall be constructed to the grade and dimensions shown on the plans, specified on furnished drawings, or as staked in the field.

6. MATERIAL

Excavated material will be used to construct side banks, roads, or other fills as specified. Topsoil shall be stockpiled and re-spread where necessary to provide a seedbed for the grass. Seedbed preparation; time of seeding; seeding mixture and rate; stabilizing crop; mulching; or mechanical means of stabilization; and fertilizer and lime requirements shall be provided to the owner/operator for the waterway and other disturbed areas after construction is complete.

Any spoil shall be spread where it will not interfere with flow into the waterway. If necessary, excess water shall be diverted away until vegetation is established. Any protective measures shall then be removed, and the disturbed areas that are not to be farmed shall be seeded to

0-3+00FT.

32 FT.

1.2 FT.

16/16 FT.

E. ESTIMATED CHANNEL AREA = 0.25 AC.

32 FT.

1.2 FT.

ARS-BLACKLAND Grass Waterway 3. SOUTH Method 1. Above will be used in Checkout of Waterway Construction.

FIELD 2. SOUTH OF STATION.

W.W. # 3. SOUTH

Chuck.Tonn Highlight

November 2015

UNITED STATES DEPARTMENT OF

AGRICULTURE NATURAL RESOURCES

CONSERVATION SERVICE BELL COUNTY, TEXAS

OPERATION AND MAINTENANCE PLAN

GRASSED WATERWAY

Date: 12-6-2021 Producer/Land user: ARS-BLACKLAND

Address: Address 1

Address 2

Description of practice location: Tract No. Farm No. Field No. 2. SOUTH OF STATION

A properly operated and maintained Grassed Waterway is an asset to your farm. This Grassed Waterway was designed and installed to stabilize an eroding area and to safely convey runoff from the drainage area. The estimated life span of this installation is at least 10 years. The life of this practice can be assured and usually increased by developing and carrying out a good operation and maintenance program.

This practice will require you to perform periodic maintenance and may also require operational items to maintain satisfactory performance. Here are some recommendations to help you develop a good operation and maintenance program.

GENERAL RECOMMENDATIONS

• Establish a maintenance program to maintain waterway capacity, vegetative cover, and outlet stability. Vegetation damaged by machinery, herbicides, or erosion must be repaired promptly.

• Protect the waterway from concentrated flow by using diversion of runoff or mechanical means of stabilization such as silt fences, mulching, hay bale barriers and etc. to stabilize grade during vegetation establishment.

• Minimize damage to vegetation by excluding livestock whenever possible, especially during wet periods. Permit grazing in the waterway only when a controlled grazing system is being implemented.

• Inspect grassed waterways regularly, especially following heavy rains. Fill, compact, assistance you might need for implementation of this Operation and Maintenance Plan for your conservation practice.

NRCS, TEXAS

November 2015

• Avoid use of herbicides that would be harmful to the vegetation or pollinating insects in and adjacent to the waterway area.

• Avoid using waterways as turn-rows during tillage and cultivation operations.

• Mow or periodically graze vegetation to maintain capacity and reduce sediment deposition. Mowing may be appropriate to enhance wildlife values, but must be conducted to avoid peak nesting seasons and reduced winter cover.

• Apply supplemental nutrients as needed to maintain the desired species composition and stand density of the waterway.

• Control noxious weeds.

• Do not use waterways as a field road. Avoid crossing with heavy equipment when wet.

• Lift tillage equipment off the waterway when crossing and turn off chemical application equipment.

• Remove all foreign debris that hinders system operation.

• Eradicate or otherwise remove all rodents or burrowing animals. Immediately repair any damage caused by their activity.