concrete toewall
TRANSCRIPT
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7/28/2019 Concrete Toewall
1/4
(revised 4/08)
Client: Designed: Date:
County: Checked: Date:
#NUM!
CONCRETE BOX INLET TOEWALL DESIGN (# 5 REBAR)
Freeboard= 0.4
Required Q= CFS CAPACITY = #NUM! CFS
input F = input W= BUTTRESS = 0
input H = input B = WALL = 8 INCHES
S = 1.0 = 0.667 FEET
Toewall Depth = FEET Toewall Width = FEET
STEEL SCHEDULE - #5 BARS
MARK QUAN LENGTH A B TOTAL FT
1 2 0.33 0.33 - 0.66
2 0 1.45 1.32 0.13 0.00
3 1 1.67 1.67 - 1.67
4 0 1.32 0.00 1.32 0.00
5 2 1.32 0.00 1.32 2.64
6 0 1.99 0.67 1.32 0.007 0 2.64 1.32 1.32 0.00
8 2 0.67 0.67 - 1.34
9 0 0.67 0.67 - 0.00
10 0 0.00 0.00 0.00 0.00
11 0 0.00 0.00 0.00 0.00
12 0 0.00 0.00 0.00 0.00
13 0 0.00 0.00 - 0.00
TOTAL #5 (5/8 INCH DIAMETER) RE-BARS 6.31 LIN. FT.
= 6.6 POUNDS
VOLUME OF CONCRETE:
TOEWALL: 0.0 CUBIC FEET
HEADWALL: 1.0 CUBIC FEET
BOX: 0.7 CUBIC FEET
BUTTRESS: 0.0 CUBIC FEET
TOTAL 1.7 CUBIC FEET = 0.1 CU. YDS.
PLUS 10% = 0.1 CU. YDS.
4 IN. DRAIN TUBING: 8 LIN. FT
PLUS 10 LIN. FT. 4 IN. PVC & 2 INTERNAL COUPLERS
VOLUME OF RIPRAP:
AROUND WEIR - 12" WIDE X 8" DEEP = 0.1 CU. YDS.
DS CHANNEL-10 FEET, W WIDE,
F HIGH, 1' DEEP, SS=2:1 = 0.0 CU. YDS.
EARTHWORK:
NORMAL EXCAVATION= 1 CU. YDS.
TOEWALL TRENCH = 2 LIN. FT.
NORMAL BACKFILL = 1 CU. YDS.
NORMAL DIKE FILL = 0 CU. YDS.
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7/28/2019 Concrete Toewall
2/4
(revised 4/08)
Client: Designed: Date:
County: Checked: Date:
CONCRETE BOX INLET TOEWALL DESIGN (# 4 REBAR)
Freeboard= 0.4
Required Q= CFS CAPACITY = #NUM! CFS
F = 0.0 W = 0.0 BUTTRESS = 0
H = 0.0 B = 0.0 WALL = 8 INCHES
S = 1.0 = 0.667 FEET
Toewall Depth = 0.0 FEET Toewall Width = 0.0 FEET
STEEL SCHEDULE - #4 BARS
MARK QUAN LENGTH A B TOTAL FT
1 4 0.33 0.33 - 1.32
2 0 1.26 1.13 0.13 0.00
3 2 1.67 1.67 - 3.34
4 0 1.13 0.00 1.13 0.00
5 2 1.13 0.00 1.13 2.26
6 0 1.80 0.67 1.13 0.007 0 2.26 1.13 1.13 0.00
8 2 0.67 0.67 - 1.34
9 0 0.67 0.67 - 0.00
10 0 0.00 0.00 0.00 0.00
11 0 0.00 0.00 0.00 0.00
12 0 0.00 0.00 0.00 0.00
13 0 0.00 0.00 - 0.00
TOTAL #4 (1/2 INCH DIAMETER) RE-BARS 8.26 LIN. FT.
= 5.5 POUNDS
VOLUME OF CONCRETE:
TOEWALL: 0.0 CUBIC FEET
HEADWALL: 1.0 CUBIC FEET
BOX: 0.7 CUBIC FEET
BUTTRESS: 0.0 CUBIC FEET
TOTAL 1.7 CUBIC FEET = 0.1 CU. YDS.
PLUS 10% = 0.1 CU. YDS.
4 IN. DRAIN TUBING: 8 LIN. FT
PLUS 10 LIN. FT. 4 IN. PVC & 2 INTERNAL COUPLERS
VOLUME OF RIPRAP:
AROUND WEIR - 12 WIDE X 8 DEEP = 0.1 CU. YDS.
DS CHANNEL-10 FEET, W WIDE, F HI,
1' DEEP, SS=2:1 = 0.0 CU. YDS.
EARTHWORK:
NORMAL EXCAVATION= 1 CU. YDS.
TOEWALL TRENCH = 2 LIN. FT.
NORMAL BACKFILL = 1 CU. YDS.
NORMAL DIKE FILL = 0 CU. YDS.
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7/28/2019 Concrete Toewall
3/4
Date
2/28/2008
4/9/2008
Revised spreadsheet to allow user to input a value for reduction in capacity due to "freeboar
emergency in relation to the top of headwall. Researched the validity of using a weir coeffici
value of 3.1 from the EFH Ch. 3 is not valid for drop box structures. The Hydraulics Formul
uses a varying coefficient based on h/w and b/w correction factors and is dependent on the
between 2.6 and 2.9 for typical size structures.
Revision Notes
Corrected values for number of bar #1 calculated for #4 size rebar. Added 9" floor thicknesequivalent for #4 rebar chart. Changed value in F18 to reduce for edge clearance. Freebo
#4 rebar table for reference on printouts.
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7/28/2019 Concrete Toewall
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Rev. By
B. Clarizia
B. Clarizia
d", or the elevation of the
ent of 2.72. The straight weir
s drop box structure calculation
size of structure. It ranges
for cell E17 value andrd cell unlocked and copied to