Wastewater Treatment Systems - page 49

• 49
* Oil/sand interceptor sizes only, all others are oil/water separators. ** Model CDA-45 required.
Deadmen Anchors are beams of
reinforced concrete placed alongside
the OWS in the bottom of the
excavation. The weight of the backfill
on the Deadmen Anchors provides
additional resistance to buoyancy
forces acting on the OWS. Properly
installed Deadmen Anchors, when used
exclusively with Polyester Hold-Down
Straps and the supplied hardware,
prevent OWS flotation and cost less
than a concrete bottom hold-down
pad. Best of all, there is no delivery
charge for Concrete Deadmen Anchors
when they are shipped on the same
truck along with a Highland Tank OWS.
Standard Features
‹‹ Designed to work with standard
underground OWS from 350 to
60,000 gallons
‹‹ Utilize a 4,000 psi concrete mix
reinforced with #4 rebar
‹‹ Dimensions:
CDA-15: 120" L, 18" W, 12" H
CDA-45: 120" L, 36" W, 18" H
‹‹ Volume:
CDA-15: 15 cubic feet (approx.)
CDA-45: 30 cubic feet (approx.)
‹‹ Weight:
CDA-15: 2,200 pounds (approx.)
CDA-45: 6,500 pounds (approx.)
Tank Volume
Required Required
Gallons
Diameter
Length
Deadmen Straps
*350
3'-6"
4'-3"
2
2
350
3'-6"
6'-0"
2
2
550
3'-6"
7'-9"
2
2
*750
4'-0"
8'-0"
2
2
1,000
4'-0"
10'-9"
2
2
*1,500
5'-4"
9'-0"
2
2
2,000
5'-4"
12'-0"
2
2
3,000
5'-4"
18'-0"
2
2
4,000
5'-4"
24'-0"
4
4
5,000
6'-0"
23'-10"
4
4
6,000
6'-0"
28'-8"
6
6
7,000
7'-0"
24'-4"
4
4
8,000
7'-0"
28'-0"
4
4
9,000
8'-0"
24'-0"
4
4
10,000
8'-0"
26'-8"
6
6
12,000
8'-0"
32'-0"
6
6
**15,000
10'-0"
25'-6"
4
4
**20,000
10'-6"
31'-0"
6
6
**25,000
10'-6"
38'-9"
8
8
**30,000
10'-6"
46'-0"
10
10
**40,000
12'-0"
47'-3"
10
10
**50,000
12'-0"
59'-6"
12
12
**60,000
13'-0"
60'-6"
12
12
18"
12"
20"
20"
40"
20"
20"
120"
36"
18"
20"
20"
40"
20"
20"
120"
CDA - 15
CDA - 45
18"
12"
20"
20"
40"
20"
20"
120"
36"
18"
20"
20"
40"
20"
20"
120"
Dimensions
Notes:
1. Above recommendations assume a 36" burial
depth to top of OWS or INT, have at least one
access sump and are installed exclusively with
Highland Polyester Hold-Down Straps.
2. To be effective, Deadmen Anchors must be
placed outside the OWS or INT diameter and
extend the full length of the OWS or INT.
3. A limited number of Deadmen Anchors require
the installation of supplemental methods of
restraint, such as 8" grade-level reinforced
concrete pads (as recommended by
PEI RP 100-11).
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