APPROVED REVISION TCP-234TH CLOSURE-ENG2020-0043SIGN SPACING = X
RURAL ROADS 45/55 MPH 500'±
RURAL ROADS & URBAN ARTERIALS 35/40 MPH 350'±
RURAL ROADS & URBAN ARTERIALS 25/30 MPH 200'±
RESIDENTIAL & BUSINESS DISTRICTS
URBAN STREETS 25 MPH OR LESS 100'±
(1) ALL SPACING MAY BE ADJUSTED TO ACCOMMODATE
INTERCHANGE RAMPS, AT -GRADE INTERSECTIONS AND
DRIVEWAYS.
(2) THIS SPACING MAY BE REDUCED IN URBAN AREAS TO FIT
ROADWAY CONDITIONS.
NOTES:
1. ALL SIGNS ARE 48'X48" ACROSS
2. ASTERIX DENOTATES X, L, OR B
DISTANCES ARE NOT TO SCALE
3. CONTRACTOR SHALL ALWAYS PROVIDE
ACCESS TO DRIVEWAYS
4. STANDARD ADVANCE WARNING SIGNS
SHALL BE USED FOR PLATES OR ROUGH
ROAD DURING AFTER-HOURS, INCLUDING
"MOTORCYCLIST" SIGN
5. FLAGGERS SHALL BE USED IN
ACCORDNACE WITH WAC 468-95-302. UPO
WILL BE REQUIRED IF A TRAFFIC SIGNAL
COULD BE COUNTERMANDED
6. IF ONLY ONE LANE IS OPEN IN A
DIRECTION, THAT LANE SHALL BE A
MINIMUM OF 11' WIDE, UNLESS
SPOTTER/FLAGGERS ARE USED, IN
WHICH CASE THE LANE CAN BE A
MINIMUM OF 10'
7. SIDEWALKS ARE EITHER OPEN OR NOT
OPEN. A SIDEWALK IS CLOSED IF A
MINIMUM 4' PATH CANNOT BE
MAINTAINED MEASURED FROM
PROPERTY LINE, OR 5.5' IF CREATED
FROM FACE OF CURB
8. CONTRACTOR TO PLACE STEEL
PLATES IN ROADWAY TO ALLOW ROAD TO
REOPEN OUTSIDE OF TCP HOURS
9. CONTRACTOR TO NOTIFY PROPERTY
AND BUSINESS OWNERS WITH AFFECTED
ACCESS PRIOR TO CLOSURE
10. ACCESS TO VACANT 24310 PROPERTY
TO BE GRANTED DURING WORK HOURS IF
NECCESSARY
CHANNELIZATION DEVICE
SPACING (FEET)
MPH TAPER TANGENT
50 40 80
35/45 30 60
25/30 20 40
LANE
WIDTH
(FEET)
MINIMUM TAPER LENGTH = L FEET
POSTED SPEED MPH
25
1 30
1 35
1 40
45
1 50
10
105
1 150
1 205
1 270
450
500
11
115
165
1 225
1 295
495
550
12
125
180
1 245
1 320
540
600
BUFFER DATA
LONGITUDINAL BUFFER SPACE = B
SPEED (MPH) 125 1 30 135 140 145 150 155 160 165 1 70 TYPE OF TCP: WORK HOURS
LENGTH (FEET) 11551200 12501305 136014251495 1570 16451730 PHASE OF WORK: TRENCH
W20 - 3 X
r
STREET IF
CLOSED
AHEAD >
Q
2
W20-2 X
00
DETOUR
X
L
/ 230TH SIT SW
vj �' Tr
AN
LEGEND
TRAFFIC CONES
b ®
TEMP SIGN LOCATION
WORK AREA
M4-9H DETOUR
W20-1
ROAD
WORK
AHEAD
TRAFFIC CONTROL PLAN
HOURS OF TCP: 24 HOUR
24 HR CONTACT:
WILL HENNESSEY
WAECO CONSTRUCTION
W ILL@WAECOCONSTRUCTION.COM
JOB NAME: 234TH ST PIPE REPLACEMENT
ADDRESS: 23410 HWY 99
DESCRIPTION: INSTALL STORM SEWER PIPE IN
ROADWAY
Approved by Engineer Division:
Signature: Bertrand Hauss
June 18, 2020
Steel plates to be available at
the work site at all times to open
at least one lane for emergency
vehicle access.
Temporary road closure
permitted during the hours
7am-6pm.
Page 1 of 1