EastDietzatBorgfeld Plans #14-PW-52-C-03-Omni a_m 0 A[ 9 9K L
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Mayor :Michael Carpenter
C ity Council Members
Jim Fowler -� Grumpy Azzoz
Daryl John -� Cedric Edwards
City Manager : John C. Kesel
Public Works Director: Sam Willoughby
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FORD ENGINEERING INC.
ENGINEERING SURVEYING PLANNING
10927 WYE DRIVE, SUITE 104, SAN ANTONIO, TEXAS 78217, (210) 590 -4777
PROJECT NO.: 1124.84 19 www.fordengineering.com DATE: December 3, 2014
Wire, nylon or
3:1 Max, 3:1 Max, polypropylene
binding
loverlap tops of
2" I Hay _BcJ.
F-ilter fabric
3' min. width Flow
MAN\
N,
Backfill & hand tam
p. A ltk
Embed posts 18" min. 11 An saes
or anchor if in rock. _j" min.. to
Flow 9� toward adjacent bale ? height
6" ly/ Ditch Flowline of bale
A I
A\ SECTION B-B
PLAN VIEW
SECTION A-A Angle first stake Fill voids between
toward previously bales with hay
Angle stakes toward laid bale
SEDIMENT CONTROL FENCE USAGE GUIDELINES L
adjacent bale 4" min. to-\ ?" Did. rebor
or 2" x 2"
A sediment control fence may be constructed near the ? height B wood stakes
of bale
downstream perimeter of a disturbed area along a contour
to intercept sediment from overland runoff- A 2 year
storm frequency may be used to calculate the flow rate
to be filtered.
Sediment control fence should be sized to filter a max.
flow through rate of 100 GPM FT . S9diment control fence
is no
area not larger than recommen d 2 e d to c acres, ontrol erosion from a drainage
PLAN SHEET LEGEND PROFILE VIEW
Sediment Control Fence scF GENERAL NOTES BALED HAY FOR EROSION CONTROL
L I
.30
PLANS SHEET LEGEND
o 1. The guidelines shown hereon are suggestions only and
may be modified by the Engineer. Baled Hay GENERAL NOTES
r.0-
I
E
1. Hay bales shail be a minimum of 30" in length and weigh
a minimum of 50 Los.
0 2. Hoy bales shall be bound by either wire or nylon or
polypropylene string. The bales shall be composed entirely
BALED HAY USAGE GUIDELINES of vegetative matter.
,X E
4 min. steel or wood posts spaced at 6' to 8'. A Baled Hay installation may be constructed 3. Hay bales shall be embedded in the soil a minimum of 4" and
Softwood posts shall be 3" min. dia. or nominal 2"x4". near the downstream perimeter of a disturbed where possible ? the height of the bole.
Connect the ends of
Hardwood posts shall have a min. cross section of 1.5" x 1.5".
area along a contour to intercept sediment from 4. Hay bales shofl be placed in a row with ends tightly abutting
successive reinforcement overland runoff. A two year storm frequency
1E sheets or rolls a min. of may be used to calculate the flow rate to the adjacent bales. The bales shall be placed with bindings
6 times with hog rings, lFaster, fabric to top strand of welded wire mesh (W.W.M.) be filtered. The installation should be parallel to the ground.
by hog rings or cord at a max. spacing of 15". sized to filter a maximum flow thru rate of
5 GPM/FT2 of cross sectional area. Baled hay 5. Hay bales shall be securely anchored in place with ?" Dia.
may be used at the following locations: rebor or 2" x 2" wood stakes, driven through the bales.
4 steel
Softwood do
Hardwood posts or
st r
asts
wood
shall
shall "a
I
a'd pas
' e 3
have
F. n fabric
by g rings S
A I Attach the W.W.M. & fabric on end posts
The first stake shall be angled towards the previously
using 4 evenly spaced staples for laid bale to force the bales together.
wooden posts (or 4 T-Clips or sewn 1. Where the runoff approaching the baled hay
2" vertical pockets for steel posts). flows over disturbed soil for less than 6. The guidelines shown hereon are suggestions only and may be
o E 100'. If the slope of the disturbed soil
E exceeds 10%, the length of slope upstream modified by the Engineer.
Z 0,2 Golv. W.W.M. (12.5 Go. min.) go- the baled hay should be less than 50.
C') b max. opening size shall be REVISION HISTORY
°L 2" x 4". 2. Where the installation will be required _a3+7exas Department of Transportation
0 Woven filter
for less than 3 months. Design Division (Roadway)
fabric 3. Where the contributing drainage area is
less than ? acre. TEMPORARY EROSION,
For Baled Hoy installations in small ditches,
SEDIMENT AND WATER
T j I the additional following considerations apply.
Place 4" to 6' of fabric against the trench
, � 0 1. The ditch sideslopes should be graded POLLUTION CONTROL MEASURES
side and approx. 2" across trench bottom in
Z as flat as possible to maximize the
-t upstream direction. Minimum trench size
0 drainage flowrote thru the hay.
FENCED & BALED HAY
R shall be 6" square. Backfill and hand tamp. 2. The ditch should be groded large enough
to contain the overtopping drainage when
sediment has filled to the top of the
EC(l)-93
TEMPORARY SEDIMENT CONTROL FENCE baled bay. FILE-. EC193.DGN ON: HEJ m. HEJ ow: BGD CK:
JZ Bales should be replaced usually every 2 months (DT00T JUNE 1993 -R- AID PRO-
or more often during wet weather when loss of REVISIONS
structural integrity is accelerated. COWT�YCDNTROLSECT 109 HIOHWAY
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Drain to sediment
trapping device
50' Min.
PLAN
PROFILE
CONSTRUCTION EXIT (TYPE 1)
GENERAL NOTES
1. The length of the type I construction exit shall be as
indicated on the plans, but not less than 50'.
2. The coarse aggregate should be open graded with a size of 4" to 8".
3. The approach transitions should be no steeper than 6:1 and
constructed as directed by the Engineer.
4. The construction exit foundation course shall be flexible base,
bituminous concrete, portland cement concrete or other material
as approved by the Engineer.
5. The construction exit shall be graded to allow drainage to a
sediment trapping device.
6. The guidelines shown hereon are suggestions only and may
be modified by the Engineer.
4"
FILTER DAM AT TOE OF SLOPE
RFD
TYPE 1 Dfo.
PLAN VIEW
3', 6' or 9'
TYPE 4 (SACK GABIONS)
3:1 Max.
3:1 Max.
"V" SHAPE
(Plan View)
PLANS SHEET LEGEND
Type 1 Rock Filter Dam
Type 2 Rock Filter Dom
Type 3 Rock Filter Dom
Galvanized Steel
SECTION A-A
Drain to sediment
trapping device
50' Min.
Treated timber plank Typical dimensions 5" X 10" X 13'
PLAN
F
in.
PROFILE
CONSTRUCTION EXIT (TYPE 2)
GENERAL NOTES
1. The length of the type 2 construction exit shall be as
indicated on the plans, but not less than 50'.
2. The treated timber planks shall be attached to the railroad
ties with ?"x 6" min. lag bolts. Other fasteners may be used
as approved by the Engineer.
3. The treated timber planks shall be #2 grade min., and should
be free from large and loose knots.
4. The approach transitions shall be no steeper than 6:1 and
constructed as directed by the Engineer.
5. The construction exit foundation course shall be flexible base,
bituminous concrete, partland cement concrete or other material
as approved by the Engineer.
6. The construction exit should be graded to allow drainage to a
sediment trapping device,
7. The guidelines shown hereon are suggestions only and may
be modified by the Engineer.
Excavation
(If shown on
const. dw9s.)
C
A "V" Shape may be used for
higher velocity flows.
(See "V' Shape Plan below)
FILTER DAM AT SEDIMENT TRAP
OR
TYPE 1 OR TYPE 2
Galvanized woven
See Note 4
<1, 2
1 T7
4"
PROFILE
2' Mi
SECTION C-C
ROCK FILTER DAM USAGE GUIDELINES
Rock Filter Dams should be constructed downstream from
disturbed areas to intercept sediment from overland runoff and/or
concentrated flow. The dams should be sized to filter a maximum
flow through rote of 60 GPM/FT of Gross sectional area. A 2 year
storm frequency may be used to calculate the flow rate.
Type 1 (15" high with no wire mesh .T e .1 may be used at the
toe of slopes, around inlets, in small ditches, and at dike or
swate outlets. This type of dam is recommended to control
erosion from a drainage area of 5 acres or less. Type 1 may not
be used in concentrated high velocity flows (approx. 8 Ft/Sec
or more) in which aggregate wash out may occur. Sandbags may be
used at the embedded foundation (4" deep min.) for better filtering
efficiency of low flows if called for on the plans or directed by
the Engineer.
Type 2 (18" high with wire mesh): Type 2 may be used in ditches
and at dike or swale outlets.
Type 3 (36" high with wire mesh): Type 3 may be used in stream
flow and should be secured to the stream bed.
Type 4 (Sock gabions): Type 4 May be used in ditches and smaller
channels to form an erosion control dam.
;s 1 6: Z = ii
Type 3 = 36"
R.O.W.
Disturbed
Soil Area
J
Stabilized
_--See note 2
2" X 8" treated timbers
nailed anti abutted ends
of wood sheets
9" Min. thick plywood or
pressed wafer board sheets
-A
Paved Roadway
PLAN
?" Min. thick treated plywood or
pressed water board sheets
SECTION A-A
CONSTRUCTION EXIT (TYPE 3)
2" X 8" Timbers
Nailed onto ends
of wood sheets
soil
1� Penny Nails @
1 on centers.
GENERAL NOTES
1. The length of the type 3 construction exit shall be as
shown on the plans, or as directed by the Engineer.
2. The type 3 construction exit may be constructed from open
graded crushed stone with a size of two to four Inches
spread a min. of 4" thick to the limits shown on the plans.
3. The treated timber planks shall be #2 grade min., and
should be free from large and loose knots.
4. The guidelines shown hereon are suggestions only and may
be modified by the Engineer.
COUNTY
FILTER DAM AT CHANNEL SECTIONS
OR Za OR
TYPE 1 OR TYPE 2
GENERAL NOTES
1. If shown on the plans or directed by the Engineer, filter
dams should be placed near the toe of slopes where erosion
is anticipated, upstream and/or downstream at drainage
structures, and in roadway ditches and channels to collect
sediment.
2. Materials (aggregate, wire mesh, sandbags, etc.) shall be
as Indicated by the specification for "Rock Filt& Dams
for Erosion and Sedimentation Control".
3. The rock filter dam dimensions shall be as indicated on the
SW3P plans.
4. Side slopes should be 2:1 or flatter. Dams within the
safety zone shall have sideslopes of 6:1 or flatter.
5. Maintain a minimum of I' between top of rock filter darn weir
and top of embankment for filter darns at sediment traps.
6. Filter dams should be embedded a minimum of 4" into existing
ground.
7. The sediment trap for ponding of sediment laden runoff shall
be of the dimensions shown on the plans.
8. Rock filter dam types 2 & 3 shall be secured with 20 gouge
galvanized woven wire mesh with 1" diameter hexagonal
openings. The aggregate shall be placed on the mesh to the
height & slopes specified. The mesh shall be folded at the
upstream side over the aggregate and tightly secured to itself
on the downstream side using wire ties or hog rings. In stream
use the mesh should be secured or staked to the stream bed
prior to aggregate placement.
9. Sack Gabions should be staked down with YT dia. rebor stakes.
10. Flow outlet should be onto a stabilized area (vegetation,
rock, etc.).
11. The guidelines shown hereon are suggestions only and may be
modified by the Engineer.
REVISION HISTORY
*Texas Department of Transport,
Ar Design Division (Roadway)
TEMPORARY EROSION,
SEDIMENT AND WATER
POLLU11ON CONTROL MEASURES
ROCK FILTER DAMS
EC(2)-93
[1;1LE:T0]E�CZ93.DGN ION:"HEJ" IOK: HF�i=_:
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UTOOT JUNE 1993 DISTRICT FEDERAL AID PROJECT St
REASONS
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680
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Materiaf() at station 1+00.00
Material Nam Area Volume Cumulative Volume
Ground Removed 93.411 0.00 0.00
Ground Fill 39.37 0.00 0.00-
Material($) at Station 1-5000
Material Name
Area
Volume
Cumulative Volume
G..ndRa...d
Ground Fill
115.46
108.19
192.98
194.54
192M
194.64
ae
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680
675
Mat erial(s ) at Station 2+00.00
Material Name
Area
Volume
CumuMm Volume
Ground Removed
Ground Fill
111.65
167.67
218.57
429.34
47I.55
623.88
NOTE:
ALL SECTIONS ARE SHOWU LEFT
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JECT NO. 1124.841
JULY 8, 2014
7 OF 10