river erosion repair - gw · river erosion repair details contained in this document have been...
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BEST PRACTICE GUIDE VERSION # 1 – APRIL 2013
RIVER EROSION REPAIR
Details contained in this document have been prepared to offer assistance to GWRC staff and Contractors. The techniques and plans contained in this Guide have been prepared and included on the basis of the information accumulated by GWRC and the experience of GWRC staff over many years in undertaking and supervising repair work. This is made available to offer assistance to rural landowners who experience erosion and are considering whether or not to undertake repairs. The guidelines and plans have been compiled to deal with common or standard situations. Landowners are cautioned against using the guidelines and plans in circumstances which may not be common or standard and are advised to seek professional assistance if in doubt or where there has been significant erosion. While GWRC has endeavoured to ensure the guidelines and plans are a fair statement of the best practice derived from experience, it cannot assume responsibility to any third party for the reliability, accuracy or completeness of the information or plans contained in this Guide or of the applicability of either to any particular circumstances. In areas of significant erosion, detailed engineering investigation / design may be required.
COVER SHEET Drawings included within :
• Staggered Concrete Blocks with Rail Iron Anchors & Inter-planted with Willows Dwg Ref :RL-5317/12
• Rail Iron Debris Fence Dwg Ref :RL-5317/13
• Rail Iron Debris Fence with Rock Head Dwg Ref :RL-5317/14 to RL-5317/16
• Permeable Groyne Dwg Ref :RL-5317/17
• Rock Groyne (160, 350, 500 & 650 Tonne) Dwg Ref :RL-5317/18 to RL-5317/22
• Concrete Block (Core) Groyne Dwg Ref :RL-5317/23
• Rock Lining Dwg Ref :RL-5317/24
• Rock Lining with Varied Batter Dwg Ref :RL-5317/25
• Gabion & Groyne Barb Dwg Ref :RL-5317/26 to RL-5317/28
• Rock Rip Rap Grading Envelope (Dwg Ref :RL-5317/29)
• GWRC Survey Mark Installation Dwg Ref :RL-5317/30 & /31
• Typical Concrete Block Cabling Detail Dwg Ref :RL-5317/32
For latest version guide, contact Greater Wellington Regional Council Flood Protection Department
For more information, contact Greater Wellington:
PO Box 11646 Manners Street
Wellington, 6141 T 04 384 5708 F 04 385 6960
April 2013
File N//50/03/07 v1
e-doc #1178292
www.gw.govt.nz [email protected]
FILE N/50/2/6 Cad: RL-5317_C.dwg
greater WELLINGTON REGIONAL COUNCIL
Te Pane Matua Taiao
EROSION REPAIR RIVER
STANDARD DETAIL STAGGERED CONC. BLOCKS WITH RAILIRON ANCHORS
VERSION # 1
Heavy duty wire cable. Blow holes in rail after driving so cable can be threaded through. NOTE :
Erosion
Side wire every 2nd Continuous back row wire
Top of bank
1 6m x 0.8m x 0.8m concrete blocks
Continuous diagonal wire rope
■III■ • •■•■ • •
sti)
Wire dogs to each side of block
0
Willow poles planted as work progresses
2.4m centres (Typical.)
0
11.1.1. • •/••••••1 Continuous front wire - • • • • •
Design channel alignment - • • • • •
• Cable size depends on concrete block hole size. Allow for 2 cables through the concrete block.
• Start and finish of spstream and downstream ends with double blocks and tie down with 2 Rail iron anchors.
Refer also drawing # HR-5293 for similar detail.
• Refer to RL-5317 / 02 for willow planting guidelines
Willow poles planted as work progresses
Concrete blocks dug in
10h : 1v sl pe
-- • • 0111„,„ ■P
ONO I /1W417, 11111 1■■■ INV.-460 •1%
swum ' z-rry•
W.L.
Fill with beach metal
70 or 90 lb x 4.5 long rail irons driven flush with downstream face, each row of concrete blocks as shown. Do not tie blocks to rail iron anchors
Scale 1 : 100
Flow
PLAN
70 or 90 lb x 4.5 long rail irons driven flush with downstream face, each row of concrete blocks as shown. Do not tie blocks to rail iron anchors
Li
TYPICAL CROSS SECTION N.T.S.
DISCLAIMER:
GWRC and other agencies involved in the preparation of this plan assume no responsibility as to the reliability, accuracy or completeness of the information shown or for any interpretation or action taken by any agency or individual in relation to information provided on this plan.
This plan has been prepared to offer assistance to rural landowners, the landowner is under no obligation to carry out these works. In areas of significant erosion, detailed engineering design / investigation may be required.
The landowner will need to contact the necessary authorities and service providers for building consent/resource consent (if applicable) prior to any work being carried out. Please note there is always a risk of works being outflanked or destroyed in a flood.
See also caution on cover sheet.
DESIGN COMPILED r 1 2013 DRAWN P.COOK April 2013 CHECKED C. C., ktitrn At 3 1M3 APPROVED ..,61.12e dcl Drawing No. RL-5317 / 12
Hutt River : Sladden Park 25m crs : Moonshine 33m crs : Manor Park 30m crs (Includes rock heads) : Avalon 30m crs (Includes rock heads)
FILE N/50/2/6 Cad: RL-5317_C.dwg
greater WELLINGTON REGIONAL COUNCIL
Te Pane Matua Taiao
EROSION REPAIR RIVER
STANDARD DETAIL Rail iron DEBRIS FENCE
VERSION # 1
• --- • --rrn fITri • - • - • - • - - • -
>4) TYPICAL Rail iron DEBRIS FENCE - PLAN Scale 1 : 200
DETAIL 1 Scale 1 : 40
DETAIL 2 Scale 1 : 40
Refer typical post detail 1 this page
Cut / fill existing ground profile as required, shape to suit 1: 50 fall
(Confirm on site)
T
■•••■
Wire rope join at middle rail iron. Refer detail 2 this page
N Remaining rail irons to be 55Ib and 4.6m long Rail iron centres vary. Hutt River 3m, Otaki River 5m.
0.2m
16mm Wire rope grips
\. =111E111E11
II1E
Railway iron 4 ° - 75°
'>)
0.2m Railway iron
0 ••■•■■k■4Ill••■■•■,.l..■
—era
=111E111E7 :7l-ETTL-=-_-1
IIIE [Ell
Front 2 rail irons to be 70Ib or 90Ib and 6.4m long @ 3m centres.
TYPICAL Rail iron DEBRIS FENCE - ELEVATION Scale 1 : 200
NOTE: 1. Debris fence with rock groyne generally placed every second fence.
Length & spacing varies as site spacific design is required. Typical spacings used in the following areas are :
DISCLAIMER:
GWRC and other agencies involved in the preparation of this plan assume no responsibility as to the reliability, accuracy or completeness of the information shown or for any interpretation or action taken by any agency or individual in relation to information provided on this plan.
This plan has been prepared to offer assistance to rural landowners, the landowner is under no obligation to carry out these works. In areas of significant erosion, detailed engineering design / investigation may be required.
The landowner will need to contact the necessary authorities and service providers for building consent/resource consent (if applicable) prior to any work being carried out. Please note there is always a risk of works being outflanked or destroyed in a flood.
See also caution on cover sheet.
CHECKED c,CmciAIN APPROVED
3/$1/3 6102
COMPILED P.COOK
April 2013 April 2013
DESIGN DRAWN
Drawing No. RL-5317 / 13
VERSION # 1
DESIGN DRAWN
COMPILED P.COOK
CHECKED C , C440/0 APPROVED
FILE N/50/2/6 Cad: RL-5317_C.dwg
EROSION REPAIR RIVER
STANDARD DETAIL Rail iron DEBRIS FENCE WITH ROCK HEAD (TYPE 1 OF 3)
greater WELLINGTON REGIONAL COUNCIL
Te Pane Matua Taiao
HI.
1:50 fall (Confirm on site)
Cut / fill existing ground profile as required, shape to suit
Hutt River : Sladden Park 25m crs : Moonshine 33m crs : Manor Park 30m crs (Includes rock heads) : Avalon 30m crs (Includes rock heads)
DESIGN CHANNEL Refer post detail 1 ALIGNMENT this page
2.6m
eibe■ . lirromme - atat.qteedrIi 116
—
/
650d,0 rock head
Front 2 rail irons to be 70Ib or 90Ib and 6.4m long @ 3m centres.
TYPICAL RAIL IRON DEBRIS FENCE - ELEVATION Scale 1 : 200
IA Flow
R1m Typ.
Wire rope join at middle rail iron. Refer detail 2 this page
Remainin rail irons to be 55Ib and 4.6m long. Rail iron centres vary (Hutt River 3m,
Otaki River 5m)
• — • — • —•—• • — • — • —41 k Varies )1
(Hutt River 3m, Otaki River 5m) 650 d' Rock head
NOTE: 1. Debris fence with rock groyne generally placed every second fence.
Length & spacing varies as site spacific design is required. Typical spacings used in the following areas are :
R3m Typ.
ROCK HEAD TYPE 1 - Plan Scale 1 : 200
Rail iron
G.L.
14111114. ZOO Oqba•
11-1 1 1-
1 1 1-1 1 1-
111-1 1
ROCK HEAD TYPE 2 - Section A - A Scale 1 : 200
4%11:
0.2m
16mm Wire rope grips
II
NZ_
0.2m 0.2m Railway iron Railway iron
In
10.5m
DISCLAIMER:
GWRC and other agencies involved in the preparation of this plan assume no responsibility as to the reliability, accuracy or completeness of the information shown or for any interpretation or action taken by any agency or individual in relation to information provided on this plan.
This plan has been prepared to offer assistance to rural landowners, the landowner is under no obligation to carry out these works. In areas of significant erosion, detailed engineering design / investigation may be required.
The landowner will need to contact the necessary authorities and service providers for building consent/resource consent (if applicable) prior to any work being carried out. Please note there is always a risk of works being outflanked or destroyed in a flood.
See also caution on cover sheet.
April 2013 April 2013
Glc112 Drawing No. RL-5317 / 14
650d 50 rock head
Front 2 rail irons to be 70Ib or 90Ib and 6.4m long @ 3m centres.
TYPICAL RAIL IRON DEBRIS FENCE - ELEVATION Scale 1 : 200 DISCLAIMER:
GWRC and other agencies involved in the preparation of this plan assume no responsibility as to the reliability, accuracy or completeness of the information shown or for any interpretation or action taken by any agency or individual in relation to information provided on this plan.
This plan has been prepared to offer assistance to rural landowners, the landowner is under no obligation to carry out these works. In areas of significant erosion, detailed engineering design / investigation may be required.
The landowner will need to contact the necessary authorities and service providers for building consent/resource consent (if applicable) prior to any work being carried out. Please note there is always a risk of works being outflanked or destroyed in a flood.
See also caution on cover sheet.
• • •
k Varies )1 (Hutt River 3m, Otaki River 5m)
Flow
NOTE: 1. Debris fence with rock groyne generally placed every second fence.
Length & spacing varies as site spacific design is required. Typical spacings used in the following areas are : DESIGN CHANNEL
ALIGNMENT : Sladden Park 25m crs : Moonshine 33m crs : Manor Park 30m crs (Includes rock heads) : Avalon 30m crs (Includes rock heads)
Hutt River
R3m Typ.
1:50 fall (Confirm on site)
Cut / fill existing ground profile as required, shape to suit
••■
Refer post detail 1 ALIGNMENT —1 this page
2.6m
DESIGN CHANNEL
Wire rope join at middle rail iron. Refer detail 2 this page
Remainin rail irons to be 55Ib and 4.6m long. Rail iron centres vary (Hutt River 3m,
Otaki River 5m)
0.2m
c0
16mm Wire rope grips
1=111=111, =111E111E11
111E
X—
Railway iron Railway iron ROCK HEAD TYPE 2 - Plan Scale 1 : 200
9m
ROCK HEAD TYPE 1 Section A - A Scale 1 : 200
DESIGN DRAWN
VERSION # 1 EROSION REPAIR COMPILED
P.COOK April 2013 April 2013
CHECKED C c atuff4
In
3 '2
RIVER STANDARD DETAIL
RAIL IRON DEBRIS FENCE WITH ROCK HEAD (TYPE 2 OF 3) Drawing No. RL-5317 / 15 FILE N/50/2/6 Cad: RL-5317_C.dwg
greater WELLINGTON REGIONAL COUNCIL
Te Pane Matua Taiao
APPROVED
greater WELLINGTON REGIONAL COUNCIL
Te Pane Niatua Taiao
EROSION REPAIR RIVER
STANDARD DETAIL RAIL IRON DEBRIS FENCE WITH ROCK HEAD (TYPE 3 OF 3)
VERSION # 1
Refer post detail 1 this page DESIGN CHANNEL
ALIGNMENT
Cut / fill existing ground profile as required, shape to suit
Rim Typ. Varies
(Hutt River 3m, Otaki River 5m)
Hutt River : Sladden Park 25m crs : Moonshine 33m crs : Manor Park 30m crs (Includes rock heads) : Avalon 30m crs (Includes rock heads)
1 E E
=111--g .=111ffig 1=111=111= 1=111=111=
DETAIL 2 Scale 1 : 40
Bottom wire 200mm below ground level
DETAIL 1 Scale 1 : 40
ROCK HEAD TYPE 3 - Section A - A Scale 1 : 200
1:8 fall (Confirm on site)
Wire rope join at middle rail iron. Refer detail 2 this page
Remaining rail irons to be 55Ib and 4.6m long. Rail iron centres vary (Hutt River 3m,
Otaki River 5m)
NOTE: 1. Debris fence with rock groyne generally placed every second fence.
Length & spacing varies as site spacific design is required. Typical spacings used in the following areas are :
Rail iron
LC)
\/
X E
41_10/1 •M* APrilippireMPWIKTOI
Ilineg ,
Front 2 rail irons to be 70Ib or 90Ib and 6.4m long @ 3m centres.
650 d 50 Rock head
TYPICAL RAIL IRON DEBRIS FENCE - ELEVATION Scale 1 : 200
R3m Typ.
ap()■0■111. 011■0■610
12mm Wire rope grips
1)-
45°
ROCK HEAD TYPE 3 - Plan (as used in Avalon Park HR-5234) Scale 1 : 200
3m
9m
DISCLAIMER:
GWRC and other agencies involved in the preparation of this plan assume no responsibility as to the reliability, accuracy or completeness of the information shown or for any interpretation or action taken by any agency or individual in relation to information provided on this plan.
This plan has been prepared to offer assistance to rural landowners, the landowner is under no obligation to carry out these works. In areas of significant erosion, detailed engineering design / investigation may be required.
The landowner will need to contact the necessary authorities and service providers for building consent/resource consent (if applicable) prior to any work being carried out. Please note there is always a risk of works being outflanked or destroyed in a flood.
See also caution on cover sheet.
April 2013 April 2013 315-113
APPROVED 6/ Drawing No. RL-5317 / 16
Cad: RL-5317_C.dwg
DESIGN DRAWN P.COOK
COMPILED
CHECKED C C. NtAA.141A
FILE N/50/2/6
DISCLAIMER:
GWRC and other agencies involved in the preparation of this plan assume no responsibility as to the reliability, accuracy or completeness of the information shown or for any interpretation or action taken by any agency or individual in relation to information provided on this plan.
This plan has been prepared to offer assistance to rural landowners, the landowner is under no obligation to carry out these works. In areas of significant erosion, detailed engineering design / investigation may be required.
The landowner will need to contact the necessary authorities and service providers for building consent/resource consent (if applicable) prior to any work being carried out. Please note there is always a risk of works being outflanked or destroyed in a flood.
See also caution on cover sheet. 3m 3m centres typ.
to river bank
M12 Galv. 'U' bolt with 50mm x 50mm x 5mm galv. washer
PLAN Scale 1 : 50
200mm x 100mm Tanalised timber rails
0 0
70 lb Railway iron or similar approved. 6m long front Iron, 4.8m for the rest
ELEVATION - (View looking Downstream) Scale 1 : 50
DESIGN COMPILED April 2013 DRAWN CHECKED APPROVED
VERSION # EROSION REPAIR April 2013 3 )3 1:,(5.C311
FIE N/50/2/6 Cad: RL-5317_C.dwg
greater WELLINGTON REGIONAL COUNCIL
Te Pane Matua Taiao
1
RIVER STANDARD DETAIL
PERMEABLE GROYNE
P.COOK
Drawing No. RL-5317 / 17
Set-out point
Class C grade rock
R4.75m
New rock groyne
Bed level 1.5
Ground level
4m
Crest level
River gravel backfill
SECTION A - B Scale 1 : 200
New rock groyne
W.
DISCLAIMER:
GWRC and other agencies involved in the preparation of this plan assume no responsibility as to the reliability, accuracy or completeness of the information shown or for any interpretation or action taken by any agency or individual in relation to information provided on this plan.
This plan has been prepared to offer assistance to rural landowners, the landowner is under no obligation to carry out these works. In areas of significant erosion, detailed engineering design / investigation may be required.
The landowner will need to contact the necessary authorities and service providers for building consent/resource consent (if applicable) prior to any work being carried out. Please note there is always a risk of works being outflanked or destroyed in a flood.
NOTE:
Groyne spacing is a judgment call depending on factors such as tightness of the bend, stream gradient and bank material etc. A general rule of thumb is : Groyne spacing = 1.5 x the distance between Erosion face and preferred channel alignment.
Typical groyne spacings that have been used are : Hutt River : Nash Street 60m crs
: Belmont 70m crs : Bridge road 50m crs : Ava - Ewen 78m crs
Waikanae River : 45 - 70m crs (generally on bends) Otaki River : 50m crs
See also caution on cover sheet.
Rim 4m
et-out point
1< PLAN Scale 1 : 200
Approx fill profi groynes
le between
April 2013 VERSION # 1 EROSION REPAIR DESIGN COMPILED
DRAWN P. CO OK
April 2013
greater WELLINGTON REGIONAL COUNCIL
Te Pane Matua Taiao
RIVER STANDARD DETAIL
ROCK GROYNE (160 TONNE)
CHECKED C C ivtietAtki 3 C APPROVED Cl Drawing No. RL-5317 / 18 FILE N/50/2/6 Cad: RL-5317_C.dwg
R6m
New rock groyne Approx. fill profile between
groynes
Design channel / preferred cannel aignment
PLAN Scale 1 : 200
R1.5m
Set-out point
6m
Set-out point
15°
Class C grade rock
I Ca
EI
-,icid.g) a c,,,T3
15 6m 1.5
30 Bed level
Ground level
Crest level W.L.
River gravel backfill
NOTE:
Groyne spacing is a judgment call depending on factors such as tightness of the bend, stream gradient and bank material etc. A general rule of thumb is : Groyne spacing = 1.5 x the distance between erosion face and preferred channel alignment.
Typical groyne spacings that have been used are : Hutt River : Nash Street 60m crs
: Belmont 70m crs : Bridge road 50m crs • Ava - Ewen 78m crs
Waikanae River
45 - 70m crs (generally on bends) Otaki River 50m crs
DISCLAIMER:
GWRC and other agencies involved in the preparation of this plan assume no responsibility as to the reliability, accuracy or completeness of the information shown or for any interpretation or action taken by any agency or individual in relation to information provided on this plan.
This plan has been prepared to offer assistance to rural landowners, the landowner is under no obligation to carry out these works. In areas of significant erosion, detailed engineering design / investigation may be required.
The landowner will need to contact the necessary authorities and service providers for building consent/resource consent (if applicable) prior to any work being carried out. Please note there is always a risk of works being outflanked or destroyed in a flood.
See also caution on cover sheet.
SECTION A- B New rock Scale 1 : 200 groyne
DESIGN DRAWN
VERSION # 1 EROSION REPAIR COMPILED
P.COOK April 2013 April 2013
greater WELLINGTON REGIONAL COUNCIL
Te Pane Matua Taiao
RIVER STANDARD DETAIL
ROCK GROYNE (350 TONNE)
CHECKED APPROVED .....--61-1042 6( c") a Drawing No. RL-5317 / 19 FILE N/50/2/6 Cad: RL-5317_C.dwg
C. C. /111.01Arl 3/513 13
>I Plant willows between groynes
W.L.
21.5m
1.5
NOTE: 1. Refer to RL-5317 / 02 for willow planting guidelines
2. Groyne spacing is a judgment call depending on factors such as tightness of the bend, stream gradient and bank material etc. A general rule of thumb is : Groyne spacing = 1.5 x the distance between erosion face and preferred channel alignment.
Typical groyne spacings that have been used are : Hutt River : Nash Street 60m crs
: Belmont 70m crs : Bridge road 50m crs : Ava - Ewen 78m crs 1m
Waikanae River : 45 - 70m crs (generally on bends)
Otaki River : 50m crs
4m
15m
10m
Set-out point
DISCLAIMER:
GWRC and other agencies involved in the preparation of this plan assume no responsibility as to the reliability, accuracy or completeness of the information shown or for any interpretation or action taken by any agency or individual in relation to information provided on this plan.
This plan has been prepared to offer assistance to rural landowners, the landowner is under no obligation to carry out these works. In areas of significant erosion, detailed engineering design / investigation may be required.
The landowner will need to contact the necessary authorities and service providers for building consent! resource consent (if applicable) prior to any work being carried out. Please note there is always a risk of works being outflanked or destroyed in a flood.
Refer also caution on cover sheet.
'4WIVA 1/1 1/ 4
/ • \
Set-out point
r-- Lo.
-
I o - • C ' eo
Class C grade rock
R7.25m
New rock groyne
PLAN Scale 1 : 200
Design channel / preferred channel alignment
Approx. fill profile between groynes
17m
Ground level Approx. fill profile between groynes
Class C grade rock 30
0 R., (optional) E — Bed level co E
— Crest level
Age" .;i1 ■■ ■ ■
Class B grade rock
Optional - Place rows of 1.6m x 0.8m x 0.8m concrete blocks to fill void and provide suitable platform for rock
River gravel backfill
SECTION A- C scale : 200
4.5m 4m 4.5m
Class C grade rock
1.5 Ground level
Class B grade rock
13m
4040,0:0,4•••, „A/Arse-4'0,4,ft_
1.5
1.5
iv 7.5m
N-
River gravel backfill
2.25m 3m 2.25m
SECTION AT A Scale 1 : 200
Optional - Place rows of 1.6m x 0.8m x 0.8m SECTION AT C concrete blocks to fill void and provide suitable Scale 1 : 200 platform for rock
DESIGN DRAWN
VERSION # 1 EROSION REPAIR COMPILED April 2013
P.COOK April 2013 CHECKED greater WELLINGTON
REGIONAL COUNCIL
Te Pane Matua Taiao
RIVER STANDARD DETAIL
ROCK GROYNE (500 TONNE)
31s11 APPROVED q/.42 61c))1 Drawing No. RL-5317 / 20
CC M KArg
WI
Cad: RL-5317_C.dwg FIE N/50/2/6
Approx. fill ground profile between groynes
1 0 0 0 0
15000
22250
2.25m 3m 2.25m
1.5 1.5
7.5m
Ground level
Lo.
4m 5.25m X
SECTION A - C Scale 1 : 200
5.25m River gravel backfill
DISCLAIMER:
GWRC and other agencies involved in the preparation of this plan assume no responsibility as to the reliability, accuracy or completeness of the information shown or for any interpretation or action taken by any agency or individual in relation to information provided on this plan.
This plan has been prepared to offer assistance to rural landowners, the landowner is under no obligation to carry out these works. In areas of significant erosion, detailed engineering design / investigation may be required.
The landowner will need to contact the necessary authorities and service providers for building consent/ resource consent (if applicable) prior to any work being carried out. Please note there is always a risk of works being outflanked or destroyed in a flood.
Refer also caution on cover sheet.
NOTE: 1. Refer to RL-5317 / 02 for willow planting guidelines
2. Groyne spacing is a judgment call depending on factors such as tightness of the bend, stream gradient and bank material etc. A beneral rule of thumb is : Groyne spacing = 1.5 x the distance between, erosion face and preferred channel alignment.
Typical groyne spacings that have been used are : Hutt River : Nash Street 60m crs
: Belmont 70m crs : Bridge road 50m crs : Ava - Ewen 78m crs
Waikanae River : 45 - 70m crs (generally on bends)
Otaki River : 50m crs
15m
4m 10m JI
, Set-out point
New rock groyne
7\-- E 15°
C•1
-X--
R7.25m
PLAN Scale 1 : 200
grade rock Class C
Arr
17m
Approx. fill profile between groynes
Design channel / preferred channel alignment
Set-out point
Class C Class B grade rock rade rock N .
Fill void with gravel material from riverbed
Plant willows between groynes (optional)
Ground level
30 Bed level Crest Level 1.5
River gravel backfill
'Aff;a1A legialirallifialM111.111011
-111111111111111111111111111111111.111all 111111111111 1
12 Optional - Place rows of 1.6m x 0.8m x 0.8m concrete blocks to fill void and provide suitable platform for rock
New rock groyne
Class C grade rock
Class B Grade Rock
SECTION AT A Scale 1 : 200
SECTION AT C Optional - place rows of 1.6m x 0.8m x 0.8m Scale 1 : 200 concrete blocks to fill void and provide suitable platform for rock
14.5m
VERSION # EROSION REPAIR DESIGN DRAWN 1
COMPILED P.COOK
April 2013 April 2013 3/ 51 I
APPROVED
FILE N/50/2/6 Cad: RL-5317_C.dwg
greater WELLINGTON REGIONAL COUNCIL
Te Pane IVIatua Taiao
RIVER STANDARD DETAIL
ROCK GROYNE (650 TONNE) Drawing No. RL-5317 / 21
CHECKED C C ittRAY4
Design channel / preferred channel alignment
New rock groyne
10m
R6.5m
Set-out point
Optional - Place rows of 1.6m x 0.8m x 0.8m concrete blocks to fill void and provide suitable platform for rock
Crest level
Plant willows between groynes (optional) Bed level
1.5
< Class C grade rock
(
Class B grade rock
Approx. fill profile between groynes
Ground level
>I
10m
10m 15m River gravel backfill
NOTE: 1. Refer to RL-5317 / 02 for willow planting guidelines
2. Groyne spacing is a judgment call depending on factors such as tightness of the bend, stream gradient and bank material etc. A general rule of thumb is : Groyne spacing = 1.5 x the distance between erosion face and preferred channel alignment.
Typical groyne spacings that have been used are : Hutt River : Nash Street 60m crs
: Belmont 70m crs : Bridge road 50m crs : Ava - Ewen 78m crs
Waikanae River : 45 - 70m crs (generally on bends) Otaki River : 50m crs
DISCLAIMER:
GWRC and other agencies involved in the preparation of this plan assume no responsibility as to the reliability, accuracy or completeness of the information shown or for any interpretation or action taken by any agency or individual in relation to information provided on this plan.
This plan has been prepared to offer assistance to rural landowners, the landowner is under no obligation to carry out these works. In areas of significant erosion, detailed engineering design / investigation may be required.
The landowner will need to contact the necessary authorities and service providers for building consent/resource consent (if applicable) prior to any work being carried out. Please note there is always a risk of works being outflanked or destroyed in a flood.
See also caution on cover sheet.
1 0m 15m
R2.5m
u_
Approx. fill profile between groynes
PLAN Scale 1 : 200
1.5m 17m
25m
SECTION A - C Scale 1 : 200
I DESIGN DRAWN
VERSION # 1 EROSION REPAIR COMPILED
P.COOK April 2013 April 2013
greater WELLINGTON REGIONAL COUNCIL
Te Pane Matua Taiao
RIVER STANDARD DETAIL
ROCK DEFLECTING GROYNE (750 TONNE)
CHECKED CCfrfw4 APPROVED Drawing No. RL-5317 / 22 FILE N/50/2/6 Cad: RL-5317_C.dwg
1.6m x 0.8m x 0.8m Concrete block core cabled together with continuous wire rope throught lifting eyes. Slope 30 : 1 and angled 15° - 45° downstream Design channel / preferred
channel alignment Approx. fill profile between groynes Class C grade rock
topping
DISCLAIMER:
GWRC and other agencies involved in the preparation of this plan assume no responsibility as to the reliability, accuracy or completeness of the information shown or for any interpretation or action taken by any agency or individual in relation to information provided on this plan.
This plan has been prepared to offer assistance to rural landowners, the landowner is under no obligation to carry out these works. In areas of significant erosion, detailed engineering design / investigation may be required.
The landowner will need to contact the necessary authorities and service providers for building consent /resource consent (if applicable) prior to any work being carried out. Please note there is always a risk of works being outflanked or destroyed in a flood.
See also caution on cover sheet.
Plant willows between groynes
90° Groyne angled
15° - 45° d/s in direction of flow
NOTE: 1. Refer to RL-5317 / 02 for willow planting guidelines
2. Groyne spacing is a judgment call depending on factors such as tightness of the bend, stream gradient and bank material etc. A general rule of thumb is : Groyne spacing = 1.5 x the distance between erosion face and preferred channel alignment. PLAN
Scale 1 : 200
First row of blocks dug into bed below scour level
Typical groyne spacings that have been used are : Hutt River : Nash Street 60m crs
: Belmont 70m crs : Bridge road 50m crs : Ava - Ewen 78m crs
Waikanae River : 45 - 70m crs (generally on bends) Otaki River : 50m crs
0.8m to 1m above low flow water level and founded 1m to 1.5m 1.5 below scour level
Top of groyne to be Class C grade rock topping . a
E Crest level co
W.L.
ci.
River gravel backfill
TYPICAL SECTION Scale 1 : 100
Concrete block core (1.6m x 0.8m x 0.8m)
2.5m Min.
DESIGN COMPILED DRAWN P.COOK
VERSION # 1 EROSION REPAIR April 2013
April 2013
greater WELLINGTON REGIONAL COUNCIL
Te Pane Matua Taiao
RIVER STANDARD DETAIL
CONCRETE BLOCK CORE GROYNE
CHECKED
M4AAN APPROVED — 61C10 Drawing No. RL-5317 / 23 FILE N/50/2/6 Cad: RL-5317_C.dwg
Work platform 5m
Finish exposed surface with 200mm thick topsoil, sow grass
Lining thickness = 1.5 x d50 (2.5 x d50 for high velocities) or lm for Rip Rap
TYPICAL SECTION - (Low Velocities) Scale 1 : 200
Rip rap / rock lining to suit
Key rock into existing bank
Top of bank
Rock line crest
Foundation profile
Direction of flow
ROCK LINING PLAN - End Return and Snub Groyne Scale 1 : 500
45°
/ Design channel /2referred channel / alignment
444k' ri/sot
r4104%. '1411 1
laP4 ■
Crest level
=_ Backfill from river bed
River gravel backfill
River bed W.L. or M.H.W.S. (Low flow water level)
Finished profiles (min. and max limits)
— 5: 1•
Lq Selected filter material
Rip Rap / rock lining to suit
TYPICAL SECTION - (High velocities) Scale 1 : 200
Notes : 1.d50 denotes average rock diameter 2. Ensure upstream end of rockline has a 45° return keyed lm
Min. into existing bank. 3. Snub groyne to be constructed on the downstream end.
Design channel / preferred channel alignment
c`!
Crest level I 00.1
V— Finished profiles (Min. and max limits)
Backfill from river bed
Selected filter material
W.L. or M.H.W.S. (Low flow water level)
9.6m
Work platform 5m
Finish exposed surface with 200mm Thick topsoil, sow grass
River gravel backfill River bed
DISCLAIMER:
GWRC and other agencies involved in the preparation of this plan assume no responsibility as to the reliability, accuracy or completeness of the information shown or for any interpretation or action taken by any agency or individual in relation to information provided on this plan.
This plan has been prepared to offer assistance to rural landowners, the landowner is under no obligation to carry out these works. In areas of significant erosion, detailed engineering design / investigation may be required.
The landowner will need to contact the necessary authorities and service providers for building consent/resource consent (if applicable) prior to any work being carried out. Please note there is always a risk of works being outflanked or destroyed in a flood.
See also caution on cover sheet.
EROSION REPAIR RIVER
STANDARD DETAIL ROCK LINING
A ril 2013 P.COOK C AltiAMA
rfiL- IIII'PE021013
DESIGN DRAWN CHECKED APPROVED Drawing No. RL-5317 / 24 FILE N/50/2/6 Cad: RL-5317_C.dwg
VERSION # 1
greater WELLINGTON REGIONAL COUNCIL
Te Pane Matua Taiao
COMPILED April 2013 DESIGN
greater WELLINGTON REGIONAL COUNCIL
Te Pane Matua Taiao
EROSION REPAIR RIVER
STANDARD DETAIL ROCK LINING (Varied batter / River Access)
DRAWN P.COOK April 2013 CHECKED C,c A/1(4.0%FM 3fs-i "; APPROVED .„--C-I402' 61C113 Drawing No. RL-5317 / 25 FILE N/50/2/6 Cad: RL-5317_C.dwg
VERSION # 1
50 Crest level
Width = 1.5 x d50 (2 x d50 for high velocities) or lm for Rip Rap SECTION (4h : 1v Batter)
Scale 1 : 200 Hor. & Vert.
9' 9' 1. 9' 9'
Rockline crest
Rock lining face
1.5h : 1v BATTER 12.5m TRANSITION
River Flow
12.5m TRANSITION 1.5h : 1v BATTER
Hatch denotes backfill as required
Rock lining Footing
Approx. Top of bank
9'
Rockline crest
Rock lining footing
1-= 0 LU
u) 0 a_
in I
1 Om or length to suit 4h : 1v BATTER
DESIGN CHANNEL
Rock lining face
PLAN Scale 1 : 250
N otes:
1.
Dimensions are shown in mm unless stated otherwise.
2. Batter slope varies to provide variation in habitat conditions
Finish exposed surface with 200mm thick topsoil, sow grass
Existing ground profile
Backfill & filter material as specified
W.L. or MHWS (Low flow water level)
V 4 _ _ — 1.5 "Mit ritelgrralft% ,
• A,- vvivrw eabriernsm.f...
Rock / Rip Rap lining (Class A)
(NI
co DE
SIG
N C
HA
NN
EL
Width = 1.5 to x d50 (2 x d50 for high velocities) or lm for Rip Rap
7
3. Place a suitable rooting medium over the riprap and revegetate with suitable species as soon as possible after vegetation is destroyed and soil washed away particularly where whitebait spawning occurs.
4. Refer also to the waikanae river environmental strategy (version 3)
5. Refer to drawing RL-5317 / 24 for typical rock / rip rap lining dimensions & profile
DISCLAIMER:
GWRC and other agencies involved in the preparation of this plan assume no responsibility as to the reliability, accuracy or completeness of the information shown or for any interpretation or action taken by any agency or individual in relation to information provided on this plan.
This plan has been prepared to offer assistance to rural landowners, the landowner is under no obligation to carry out these works. In areas of significant erosion, detailed engineering design / investigation may be required.
The landowner will need to contact the necessary authorities and service providers for building consent /resource consent (if applicable) prior to any work being carried out. Please note there is always a risk of works being outflanked or destroyed in a flood.
See also caution on cover sheet.
VERSION # 1
DESIGN DRAWN
COMPILED P.COOK
FILE N/50/2/6 Cad: RL-5317_C.dwg
EROSION REPAIR RIVER
STANDARD DETAIL GABIONS - Sheet 1 of 3
greater WELLINGTON REGIONAL COUNCIL
Te Pane Matua Taiao
Side diaphragm
Biodegradable string to hold willows in place
Single loop lacing
Longitudinal cables Front (river side)
Pin made from D16 reinforcing bar 0.75m long pushed into fill to hold down fencing wire
Back
Longitudinal cable
Diagonal cable
3.7m irons
VIEW 1 RIVER BED LEVEL NOT SHOWN N.T.S.
Shade cloth
÷- Live cable
Rail iron
ANCHOR DETAIL N.T.S.
5.5m irons
4.6m Irons
Plant line of willow poles at 1.5m centres. Ensure willow poles are embedded a min of 0.5m into river bed
025mm to 30mm0
_ - -
Silt
Strained fencing wire
Shade cloth Willow plantings
River gravel
100mm Growing medium (silt)
Longitudinal cable
Double loop lacing
Bottom mesh (Mesh front & bottom faces only)
SKETCH SHOWING DIAPHRAM Rail ironS CABLE and WILLOW PLACEMENT DETAILS
N.T.S. — _
based on 6.51-nidth o W
OVERLAP DETAIL N.T.S.
5.0rn
Refer overlap detail
ellre471:‘4! 444;11111
Imported weathered greywake
TYPICAL LACING DETAIL DOUBLE LOOP LACING
N.T.S.
TYPICAL LACING DETAIL SINGLE LOOP LACING
N.T.S.
Railway iron posts. Base to be on bank side offence. Gas cut 25-30mm diameter hole in web for longitudinal cables
PLAN N.T.S.
Mesh to be laced to every third post " using single loop lacing through alternate netting links. lacing tied off around top and bottom cable
Longitudinal cables to be tied off at 50m intervals onto rail irons, with two galvanied 13mm wire rope grips @ 0.2m spacings. refer detail
Railway iron post
River side
TYP LONGITUDINAL CABLE JOINING DETAIL
N.T.S.
0.2m
Basket side Cable grips
TYPICAL SHADE CLOTH DETAIL N.T.S.
Willow plantings
Diagonal rail iron braces
1)7
SKETCH SHOWING GABION END DETAIL DOWN STREAM END OF WALL
N.T.S.
TOP OF RAIL DETAIL N.T.S.
Back fill —›
Single loop lacing for diaphragm (every third iron)
Rail iron and GABION BASKET CROSS SECTIONAL DETAIL
N.T.S.
Grass
Refer / anchor / detail I
Longitudinal cable
single loop lacing
Every Diagonal cable rthird Wire mesh diaphragm J iron
Single loop lacing for front Design face and diaphragm NWL
River bed
'Double loop lacing
Fill depression with silt
Each end of roll of chainlink mesh to form a continuous length of mesh by removing last wire and knitting into end of roll
Longitudinal cables
Design NWL
V River bed
Groyne barb (optional Refer drawing HR-5317 / 27 for details
Backfill. Refer detail above
Rail iron TYPICAL RIVER CROSS SECTION
N.T.S.
1.2m
Shade cloth
Willow plantings
Gabion basket. Rocks from beaches
Shade cloth and grass with plantings
Round off sharp edge
DISCLAIMER:
GWRC and other agencies involved in the preparation of this plan assume no responsibility as to the reliability, accuracy or completeness of the information shown or for any interpretation or action taken by any agency or individual in relation to information provided on this plan.
This plan has been prepared to offer assistance to rural landowners, the landowner is under no obligation to carry out these works. In areas of significant erosion, detailed engineering design / investigation may be required.
The landowner will need to contact the necessary authorities and service providers for building consent/resource consent (if applicable) prior to any work being carried out. Please note there is always a risk of works being outflanked or destroyed in a flood.
See also caution on cover sheet.
NOTES:
• All braces to be formed using 55Ib rail irons and welded in place
• Refer also HR-5317 / 28 for general notes.
_April 2013 April 2013
CHECKED Ce whAikft,1 APPROVED 6193 Drawing No. RL-5317 / 26
1.5m
thi
c k ty
p.
App
rox.
top
o f b
a
/\
Set-out point Set-out
point
NOTES:
• Refer to HR-5317 / 28 for general notes.
• Refer to HR-5317 / 26 for gabion details
DISCLAIMER:
GWRC and other agencies involved in the preparation of this plan assume no responsibility as to the reliability, accuracy or completeness of the information shown or for any interpretation or action taken by any agency or individual in relation to information provided on this plan.
This plan has been prepared to offer assistance to rural landowners, the landowner is under no obligation to carry out these works. In areas of significant erosion, detailed engineering design / investigation may be required.
The landowner will need to contact the necessary authorities and service providers for building consent/resource consent (if applicable) prior to any work being carried out. Please note there is always a risk of works being outflanked or destroyed in a flood.
See also caution on cover sheet.
14.5m
SMALL GROYNE (BARB) - Plan Scale 1 : 200
LARGE GROYNE (BARB) - Plan Scale 1 : 200
_*%MIPAV ■ Existing ground
AntilW 8
(2 0
-4064SSeasmboes■
level
a ° l'Ik% IftrW4Altrat, a I PAV *aft °A —I I__Zadi"M"ii+A."1"11'.'44' IMPIIIW- —...4E11 IEME
' III— -I I I—M_ I -117.
------, j 1 -,3)1 Z
CL 1 (15
i I T2 I
2 I 2) 2-1 ?
\./
Finished W.L. V
LARGE GROYNE (BARB) - Elevation Scale 1 : 200
T6 1
-coai I 721 77;
o I g .2)
:111 1 git\-,,Altee a.1713 1111- ‘1 4- 5.14 ArdelearlireeZ
Existing ground level
April 2013
3/ 511; bK. cs
Approx. top of bank
O ardPVIT.4 F °1paCiA. -11/"Tp■bew•ravV.
0004 *IP ■ 0 004.0410 15° - 30°
OtP ONS g ereki •V*Pf 4P 4.14 fr...darta-VetP
Ariti,•• ft, %eviler-it - Li -
Set-out point
5m
Set-out point
1E- 17m
1.5m
thi
ck ty
p.
111_111-
SMALL GROYNE (BARB) - Elevation Scale 1 : 200
Lo.
Finished W.L.
VERSION # 1
DESIGN DRAWN EROSION REPAIR
RIVER STANDARD DETAIL
GROYNE BARB Sheet 2 of 3
COMPILED April 2013
CHECKED C c kt t, APPROVED Drawing No. RL-5317 / 27 FILE N/50/2/6 Cad: RL-5317_C.dwg
greater WELLINGTON REGIONAL COUNCIL
Te Pane Matua Taiao
P.COOK uh4
NOTES:
GENERAL
• All dimensions in millimeters unless noted otherwise
RAILWAY IRONS
• All railway irons to be in good condition and without significant corrosion
• Railway irons to be founded with no more than 200mm cut off for driving head damage
• All railway irons to be driven within 100mm of location shown on the drawing and shall be within a vertical tolerance of 1:50
• Top of the Railway irons to be uniform grade between set out levels
CABLES
• Cables shall be 14mm or 12mm 0 galvanised wire rope
• The three longitudinal cables shall be passed through holes in the web of each iron and tied off at every 50m as shown in the details RL-5317 / 27
• Diagonal cables shall be placed every 3m (at the same location as mesh diaphragms).
• All cable tie-offs shall be made using two galvanised steel wire grips.
• Cables shall be tensioned and tied off such that all kinks or curvature in the wires are straightened out and so that they do not deflect under moderate hand pressure between points of support
MESH and LACING WIRE
• All mesh to be used shall be 75mm mesh size, 2.5mm galvanised wire core, 3.6mm of green plastic coated chain-link.
• The end of roll of chain-link mesh is to have the end wire removed and knitted into the next so that it forms a continuous length.
• All lacing wire shall be 2.2mm galvanised wire core, 3.2mm of green plastic coated wire.
• Ends of all lacing to be tied off around a railway iron or cable (no intermediate joins), use fencing knots.
• Front mesh to be tied to the longitudinal cables using double loop lacing through every netting link.
• Front mesh and diaphragms to be tied to every third rail iron (at same location as diagonal cables) using single loop lacing through alternate netting links.
• Top mesh to be tied to the longitudinal cables and top of each diaphragm using single loop lacing
WILLOW POLES
• 2.5m - 3.0m Matsudana willow poles are to be tied to the top longitudinal cable at the rear of the gabion basket at 1.5m centres using biodegradable string prior to back filling.
• Poles are to be founded so the base is embedded at least 0.5m below water.
SHADE CLOTH
• Shade cloth to be used is super hailtex.
• Cloth is to be laid length-wise along the works with 0.5m of the end of each 6.5m wide roll fixed as shown in the diagram. The end of each roll is to be overlapped on on top of the downstream roll by at least lm.
DISCLAIMER:
GWRC and other agencies involved in the preparation of this plan assume no responsibility as to the reliability, accuracy or completeness of the information shown or for any interpretation or action taken by any agency or individual in relation to information provided on this plan.
This plan has been prepared to offer assistance to rural landowners, the landowner is under no obligation to carry out these works. In areas of significant erosion, detailed engineering design / investigation may be required.
The landowner will need to contact the necessary authorities and service providers for building consent/resource consent (if applicable) prior to any work being carried out. Please note there is always a risk of works being outflanked or destroyed in a flood.
See also caution on cover sheet.
greater WELLINGTON REGIONAL COUNCIL
Te Pane Matua Taiao
REFER TO HR-5317 / 25 and / 26 FOR DETAILS VERSION #
1
RIVER STANDARD DETAIL
GABIONS - General Notes (Sheet 3 of 3)
EROSION REPAIR
• Each roll of shade cloth shall be pinned down along the the centre of the roll using strained fencing wire pinned down at 30m intervals using 750mm long pins formed from D16 reinforcing steel as detailed on drawing RL-5317 / 20.
DESIGN
COMPILED April 2013 DRAWN
P.COOK April 2013 CHECKED
C MtitAANI APPROVED .....re„geo Drawing No. RL-5317 / 28 FILE N/50/2/6 Cad: RL-5317_C.dwg
PERCENT SMALLER BY WEIGHT 10
0 90
80
70
60
50
40
30
20
10 0
1/1
WA
...A
•
ML
6■\1 .
11 . O
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1111
1111
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11
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1111
1111
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greater WELLIN GTON REG IONAL COU NCI L
Te Pane Mat u a Tai ao FILE
N/5 0 /2/6 1C
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VER SION # 1 EROSI ON REPAIR DES IG N
DR A WN COMP ILED April 2013
P .C OOK April 2013 C HEC KED e CM 31s- p5
greater WELLIN GTON RIVE R APPROVE D ,.„„21/12R 61qa STAN DARD DETAIL
REG IONAL COU NCI L Dra wi ng N o. RL -53 17 / 29
Te Pane Mat u a Tai ao ROCK RIP RAP GRADING ENVELOPE
30
40
60
80 1
00
200
400
600
800
1000
20
00
4000
60
00
1000
0 W
EIG
HT
OF
RO
CK
PA
RTI
CA
L (K
ilogr
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200
250
300
350
400
500
600
700
80
0 9
00
10
00
12
00
14
00
16
00
18
00
EQU
IVA
LEN
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HER
ICA
L D
IAM
ETER
(Mill
imet
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A
=
2.6
Tonn
es/m
3
200
250
300
350
400
500
600
700
80
0 9
00
10
00
11
00
12
00
1
40
0 1
55
0
EQ
UIV
ALE
NT
CU
BIC
DIM
EN
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N (M
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.6 T
onne
s/m
3
. • •
S.S. Pin or G.I. Pipe
350
FIEW
.Pn=21q1 SURVE1,4:44 I
I ,
Brass name plate. (Refer detail left)
PLAN N.T.S.
April 2013 April 2013
3/5/13 6/5/13
Drawing No. RL-5317 / 30 FILE N/50/2/6 Cad: RL-5317_C.dwg
DESIGN DRAWN
COMPILED P.COOK
CHECKED APPROVED
C. MUNN G.A.C.
105
100
THE WELLINGTON REGIONAL COUNCIL
URVEY MARK
8
8
PLAQUE DETAIL N.T.S.
NOTES: 1. Dimensions in millimetres (mm) 2. Existing plaques can be reused if not damaged 3. Plaques to be manufactured from certified gunmetal
ingot, LG 2 to BS1400 4. Crystalline structure of final plaque to be suitable for
marking by indenting punch 5. Lettering and marking box to be smooth ground 6. Plaques to be drilled with 2 No. 6.5mm 0 holes 7. Minimum lettering height 7mm 8. Refer also to A4-8170 / 01-RC and 02-RC &
HR-5310 / 05 for similar details
LO
4
4 4
LI 4
4
Concrete block to be poured in-situ
wismoW
25mm 0 Galvanised water pipe 600mm long driven into solid ground
NOTES: SECTION
1) Refer to RL-5317 / 31 for areas of pedestrian access N.T.S.
2) Refer also to A4-8170 / 01-RC and 02-RC & HR-5310 / 05 for similar details
greater WELLINGTON REGIONAL COUNCIL
Te Pane Matua Taiao
VERSION # EROSION REPAIR 1
STANDARD DETAIL - GWRC SURVEY MARKS CONTROL / SIGHTING POINTS INSTALLATION DETAILS
AREAS OF NO PEDESTRIAN ACCES
8 )(
<
--
16-
350 x 350
Stainless Steel Pin
25mm Asphaltic Concrete
4.
Formed surface
4
Concrete block to be poured in-situ
. , •
- 4 4
A
Asphaltic Concrete Pathways N.T.S.
VERSION # 1
105 350
100
/N Formed surface
4.
NZ_ • '41
• - 4
.• d . • . 4
Concrete block to be poured in-situ
4 D16 Reinforcing
THE WELLINGTON REGIONAL COUNCIL 01 0
URVEY MARK
8
PLAQUE DETAIL N.T.S.
S.S. Pin G.I. or
4.
4
4 4
\
..■
a
4.
•
LU Pipe
Brass ,,L7ALLTOT„Ti. • name plate. (Refer detail left)
o • SURVEY 1.4:44
- A 4 /
NOTES: 1. Dimensions in millimetres (mm) 2. Existing plaques can be reused if not damaged 3. Plaques to be manufactured from certified gunmetal
ingot, LG 2 to B51400 4. Crystalline structure of final plaque to be suitable for
marking by indenting punch 5. Lettering and marking box to be smooth ground 6. Plaques to be drilled with 2 No. 6.5mm 0 holes 7. Minimum lettering height 7mm 8. Refer also to A4-8170 / 01-RC and 02-RC &
HR-5310 / 05 for similar details
350 x 350
750 x 600 Wide
PLAN N.T.S.
Heavy duty cast iron hydrant box cover and frame with split lid to NZS 750 1984
Concrete surround in berms
Cast iron hydrant box
25mm 0 Galvanised water pipe 600mm long driven into solid ground
Grassed Areas / Access Ways N.T.S.
A .4.
4
• . 3:000,
10,
4
— — — — — 150mm Compacted Basecourse
4 a 4
EROSION REPAIR STANDARD DETAIL - GWRC SURVEY MARKS
CONTROL / SIGHTING POINTS INSTALLATION DETAILS PEDESTRIAN ACCESS AREAS
DESIGN COMPILED April 2013 DRAWN P.COOK A ril 2013 CHECKED C. MUNN 3/5/13 APPROVED G.A.C. 6/5/13 Drawing No. RL-5317 / 31 FILE N/50/2/6 Cad: RL-5317_C.dwg
(?)
greater WELLINGTON REGIONAL COUNCIL
Te Pane Matua Taiao
Bottom 16mm Dia. continuous wire rope SECTION A - A
Scale 1 : 50
Wire grips on wire rope at end of each tier of concrete blocks to stop movement
I I I 1 I I I I
Start \ here \
1.6m x 0.8m x 0.6 m Concrete blocks
I 1
DISCLAIMER:
GWRC and other agencies involved in the preparation of this plan assume no responsibility as to the reliability, accuracy or completeness of the information shown or for any interpretation or action taken by any agency or individual in relation to information provided on this plan.
This plan has been prepared to offer assistance to rural landowners, the landowner is under no obligation to carry out these works. In areas of significant erosion, detailed engineering design /investigation may be required.
The landowner will need to contact the necessary authorities and service providers for building consent/resource consent (if applicable) prior to any work being carried out. Please note there is always a risk of works being outflanked or destroyed in a flood.
See also caution on cover sheet.
I I I I I I
ii 411
Continuous 16mm Dia. wire rope looped back on each line of blocks
PLAN Scale 1 : 50
I \ Finish here Wire grips on wire rope
Short 16mm Dia. wire rope tying concrete block layers together
rI;'.
.
V. I TA ■MIMIIVIIV111.211 —.n—a"--1—ainn—A—m—.:1—.11—al—.21—.H—.11 1•=1.11:13TAInall:1 T■ I I —.:1—.11—ann—A.
_ _ -.z . at end of each tier of concrete blocks to stop movement
It r---
Top 16mm Dia. continuous wire rope
Short 16mm Dia. wire rope looped around main cables
Short 16mm Dia. wire rope looped around main cables
ELEVATION Scale 1 : 50
a
EROSION REPAIR RIVER
STANDARD DETAIL TYPICAL CONCRETE BLOCK CABLING DETAIL
greater WELLINGTON REGIONAL COUNCIL
Te Pane IVIatua Taiao
VERSION # 1
DESIGN DRAWN
COMPILED P.COOK
CHECKED eCevt.w-Alei APPROVED Drawing No. RL-5317 / FILE N/50/2/6 Cad: RL-5317_C.dwg
April 2013 April 2013 -5/511' 6Iqi 3