HomeMy WebLinkAbout234.20SMOOTH
VERTICAL BARS
HOOK CLAMI
CNCHOREI
TO C.B. RISEI
LOWER STEEL BAND 4' x 4" WIDE
FORMED TO FIT ON GROVE
OF C.B. RISER
W4" DIA. SMOOTH ROUND BARS
WELDED EQUALLY SPACED.
BARS SHALL BE WELDED TO
UPPER & LOWER BANDS
(24 BANDS EVENLY SPACED SEE
NOTE 1)
TYPE 2 CB
C.B. RISER
®ETAIL HOOK CLAMP
NTS
SECTION A—A
NTS
STANDARD GALVANIZED
STEPS OR LADDER
NOTES:
1. Dimensions are for illustration on 54" diameter CB. For different diameter CB's adjust to maintain 45°angle on
"vertical" bars and 7" o.c. maximum spacing of bars around lower steel band.
2. Metal parts must be corrosion resistant; steel bars must be galvanized. The use of steel is prefer.
3. This debris barrier is also recommended for use on the inlet to roadway cross -culverts with high potential for debris
collection (except on type 2 streams)
4. This debris barrier is for use outside of road right-of-way only. For debris cages within road right-of-way
+ + PUBLIC WORKS OVERFLOW STRUCTURE STD. PLAN - 234.20
DEPARTMENT
MARCH 2008
15° (typ) see note 1
m
4" DIAMETER SMOOTH
4 hook clamps evenly
Z
BARS EQUALLY SPACED
placed see detail below
3:
0
(4" O.C. MAX.)
A Z
A
Provide maintenance access
by welding 4 crossbars to 4
vertical bars as shown.
Hinge upper ends with flanges/
bolts and provide locking
mechanism (padlock) on
lower end.
Locate steps directly below.
PLAN VIEW
NTS
SMOOTH
VERTICAL BARS
HOOK CLAMI
CNCHOREI
TO C.B. RISEI
LOWER STEEL BAND 4' x 4" WIDE
FORMED TO FIT ON GROVE
OF C.B. RISER
W4" DIA. SMOOTH ROUND BARS
WELDED EQUALLY SPACED.
BARS SHALL BE WELDED TO
UPPER & LOWER BANDS
(24 BANDS EVENLY SPACED SEE
NOTE 1)
TYPE 2 CB
C.B. RISER
®ETAIL HOOK CLAMP
NTS
SECTION A—A
NTS
STANDARD GALVANIZED
STEPS OR LADDER
NOTES:
1. Dimensions are for illustration on 54" diameter CB. For different diameter CB's adjust to maintain 45°angle on
"vertical" bars and 7" o.c. maximum spacing of bars around lower steel band.
2. Metal parts must be corrosion resistant; steel bars must be galvanized. The use of steel is prefer.
3. This debris barrier is also recommended for use on the inlet to roadway cross -culverts with high potential for debris
collection (except on type 2 streams)
4. This debris barrier is for use outside of road right-of-way only. For debris cages within road right-of-way
+ + PUBLIC WORKS OVERFLOW STRUCTURE STD. PLAN - 234.20
DEPARTMENT
MARCH 2008