HomeMy WebLinkAboutS-393906NOTE: WHERE ASPHALT PAVEMENT REPAIR IS
DIRECTED BY THE CITY FOR EXISTING DAMAGED
PAVEMENT, EXISTING PAVEMENT SHALL BE SAW
CUT AND REPLACED WITH COMPACTED PG 64-22
ASPHALT, DEPTH TO MATCH EXISTING.
HMA, 3" COMPACTED
14-22
GRAVEL TOP COURSE, 6"
COMPACTED DEPTH (MIN.)
NATIVE SUBGRADE, TRENCH BACKFILL
OR STRUCTURAL BACKFILL. PROOF
ROLL PRIOR TO GRAVEL PLACEMENT.
ASPHALT PAVEMENT SURFACE DETAIL
1/2.1 MIN.
1.1 MAX. -
NOT TO SCALE
THRUST BLOCKING
v
a
SHEET PLASTIC BARRIER
ON ALL BLOCKING
UNDISTURBED SOIL
PIPE
90° BEND
H = Dmin
H <= L <= 2 H
BEARING AREA = H X L
CONSTRAINTS
N-100 1/200
�.
e e
N
H
Dmin
FIGURE 1
1. SOIL CONDITIONS AND BEARING CHARACTERISTICS ARE
TO BE DETERMINED BY THE CITY.
2. THIS STANDARD DETAIL IS FOR HORIZONTAL THRUST
RESTRAINT ONLY.
3. CONCRETE BLOCKING SHALL BE PER APWA SPECIFICATION
7-11.3(13)1984.
4. CONCRETE THRUST BLOCKING FOR FITTINGS LARGER THAN
16" SHALL BE AS SHOWN ON THE PROJECT PLANS.
5. MAINTAIN 18" MINIMUM GROUND COVER OVER THE TOP
OF ALL CONCRETE BLOCKING.
6. WRAP FITTINGS WITH 8 mil THICK POLYETHYLENE
SHEETING PRIOR TO POURING CONCRETE.
PROCEDURE
1. DETERMINE BEARING FACTOR IN TABLE 1 CORRESPONDING TO
APPROPRIATE PIPE SIZE AND TYPE OF FITTING.
2. MULTIPLY THE BEARING FACTOR DETERMINED IN TABLE 1 BY THE
MULTIPLICATION FACTOR IN TABLE 2 FOR THE APPROPRIATE
SOIL CLASSIFICATION.
THE RESULT IS THE REQUIRED AREA OF CONCRETE (IN
SQ. FT.) WHICH MUST BEAR AGAINST UNDISTURBED SOIL.
3. USING TABLE 3 LOCATE THE MINIMUM DEPTH OF CONCRETE
(Dmin) CORRESPONDING TO THE REQUIRED BEARING
AREA.
4. USING Dmin, THE HEIGHT AND LENGTH OF THE THRUST
BLOCKING CAN BE DETERMINED FROM THE DIMENSION
RELATIONSHIPS ILLUSTRATED IN FIGURE 1 AND DESCRIBED
BELOW:
A. "H" EQUALS "D"
B. MAX. "L" EQUALS 2 X "H"
C. MIN. "L" EQUALS "H"
11 1/40 BEND
CROSS W/ SMALLER
SIZE OUTLET
45° BEND
TEE
NOTE: ASPHALT TACK COATING
AT ALL PAVING JOINTS PLANE 1.5" DEPTH OF EXISTING PAVING
AND TRENCH PATCH FOR OVERLAY
COMMERCIAL HMA 1/2" IF DIMENSION IS LESS THAN
TRENCH PATCH 3" DEPTH PLANNING AND OVERLAY 3CONTRACTOR SHALL
FROM FINISHED GRADE WIDTH VARIES, SEE PLAN REMOVE AND REPLACE HMA
PG 64-22 HMA 1/2"TRENCH
WHEEL CUT TO NEAT EDGE OVERLAY TO 1.5" DEPTH
PRIOR TO FINAL PATCHING A
DEPTH OF EXISTING
ASPHALT APPROX. 2" q
OF
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INITIAL WHEEL CUT FOR 6" CRUSHED SURFACING
TRENCHING, BOTH SIDES �///�� ///��///�� BASE COURSE
('205 SEE DETAIL FOR TRENCH SECTION PROPOSED SEWER PIPE
•�CULmDEmSAC ROADWAY VERLAY RESTORATION
r2O2
PATCH. PLANE, AND OVERLAY CO2
221/20 BEND
CAP
CROSS W/ BLIND
FLANGE
TEES
TEST DEAD 900 450 22 1 /2° 11 1 /4°
SIZE PRESSURE ENDS BEND BEND BEND BEND
3
300
2.25
2.25
2.25
2.25
2.25
4
300
2.25
2.25
2.25
2.25
2.25
6
300
2.83
4.00
2.25
2.25
2.25
8
300
5.00
7.11
3.85
2.25
2.25
10
300
7.86
11.11
6.00
3.06
2.25
12
300
11.31
16.00
8.66
4.41
2.25
14
250
12.83
18.14
9.82
5.00
2.51
16
225
15.08
21.33
11.54
5.88
2.96
HORIZONTAL THRUST BLOCK (*
NOT TO SCALE CO2
F L.1b tSHStU UN UtUNlt I KIU rHU I UK5
BEARING FACTOR
TABLE 1
SOIL CONDITION
MULTIPLICATION FACTOR
*MUCK, PEAT, etc.
-
SOFT CLAY
3.0
SAND
1.5
SAND AND GRAVEL
1.0
SAND AND GRAVEL CEMENTED W/ CLAY 0.75
HARD SHALE
0.30
* THRUST BLOCKING SHALL BE DESIGNED BY ENGINEER
MULTIPLICATION FACTOR
TABLE 2
REQ'D BEARING
MINIMUM DEPTH
AREA (SQ. FT.)
DM I N
2.25 MIN.- 5.0
1.5'
5.01 -10.0
2.25'
10.01 -15.0
3.0'
15.01 - 30.0
4.0'
30.01 - 40.0
4.5'
40.01 - 50.0
5.0'
50.01 - 70.0
6.0'
BLOCKSCHAPE
TABLE 3
NOT TO SCALE
SURFACE FINISH PER PLAN
RESTORE TO EXISTING OR
BETTER CONDITION
VARIES,
3' MINIMUM
SANITARY �
SEWER PIPE
12" MIN.
HMA SURFACING PER DETAILS THIS SHEET
CONTRACTOR SHALL BE RESPONSIBLE
FOR TRENCH STABILITY AND SAFETY.
BACKFILL PER SPECIFICATIONS
TRACER / LOCATOR TAPE
SEWERTNOT TO SCALE
RENCH DETAIL C01
PIPE ZONE BEDDING AND BACKFILL 210
C06
COMMERCIAL HMA 1/2"
TRENCH PATCH 3" DEPTH
FROM FINISHED GRADE
WHEEL CUT BOTH SIDES
TO NEAT EDGE PRIOR
TO FINAL PATCHING
DEPTH OF EXISTING
ASPHALT APPROX. 2"
ASPHALT TACK COATING AT
ALL PAVING JOINTS
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INITIAL WHEEL CUT FOR // �/ �//��//��/ 6" CRUSHED SURFACING
TRENCHING, BOTH SIDES �///�� ///��///�� BASE COURSE
PROPOSED SEWER PIPE,
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APPURTENANCE
ROADWAY PATCHNOTTO cARESTORATION LE r2O3
ROADWAY RESTORATION NOTES
GENERAL NOTES:
ALL AREAS OUTSIDE OF THE TRAVELED WAY SHALL BE HYDROSEEDED PER THE SPECIFICATIONS.
BEFORE CONSTRUCTION OF HMA ON AN EXISTING PAVED SURFACE, THE ENTIRE SURFACE OF THE
PAVEMENT SHALL BE THOROUGHLY CLEANED OF DUST, SOIL, PAVEMENT GRINDINGS, AND OTHER
FOREIGN MATTER. A TACK COAT OF ASPHALT SHALL BE UNIFORMLY APPLIED TO COVER THE
EXISTING PAVEMENT WITH A THIN FILM OF RESIDUAL ASPHALT FREE OF STREAK AND BARE SPOTS. A
HEAVY APPLICATION OF TACK COAT SHALL BE APPLIED TO ALL JOINTS INCLUDING THE VERTICAL
FACE OF THE JOINT, TO BIND AND SEAL THE JOINT.
DIMENSION NOTES:
DIMENSION "A": WHEEL CUT NEAT LINE 12" BEYOND TRENCH LIMITS PRIOR TO FINAL PAVING TO
REMOVE DAMAGED AND UNDERMINED EDGES.
PHASING NOTES:
PRIOR TO TRENCH PATCHING, TRENCHES SHALL BE RESTORED TO FINISHED GRADE WITH CRUSHED
SURFACING TOP COURSE COMPACTED TO95%OF MAXIMUM DRY DENSITY AND A 1" LIFT OF
TEMPORARY COMMERCIAL ASPHALT TO ALLOW RE -OPENING OF CROSSINGS TO LOCAL TRAFFIC. THE
PATCH SHALL BE MAINTAINED BY THE CONTRACTOR.
PLANING AND OVERLAY WORK SHALL BEGIN ONCE THE ENTIRE PIPING INSTALLATION AND TRENCH
PATCHING HAS OCCURRED.
EXCAVATE UNSUITABLE MATERIAL AND PROVIDE
FOUNDATION MATERIAL CLASS A CONFORMING TO WSDOT
SS 9-03.17 COMPACTED TO A UNIFORMLY DENSE AND
UNYIELDING FOUNDATION, WHEN UNSUITABLE MATERIAL IS
ENCOUNTERED AND AS DIRECTED BY THE ENGINEER
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DRAWING IS FULL SCALE WHEN
BAR MEASURES 2"
DWG NO.: SHEET NO.:
C05 6 34