ST9801-CS000526"FA)C(2'14) 352-3201 ,f~ fe%} TELEPHONE (214) 358-6581
ED BELL CONSTRUCTION COMPANY
POST OFFICE BOX 540787 10605 HARRY HINES
DALLAS. TEXAS 75354-0787 DALLAS, TEXAS 75220
May26,2000
Mr. Kent Collins, P.E.
Engineering and Public Works
City of Coppell
255 Parkway Blvd.
Coppell, Texas 75019-4409
Re:
Coppell Road Reconstruction
SH 12! to Sandy Lake Road
Coppell Project #: ST'98-Ol
Dear Mr. Collins:
As you are aware portions of the keyway on the section of pavement poured from the Mansions
entrance to SH 121 are unacceptable. We propose replacement of the unacceptable keyway with
a longitudinal butt joint. Many of the municipalities subject to the NCTCOG specifications
accept this butt joint as an a!temative to the keyway joint and as the preferred method to tie into
an existing slab. I have included ~opies of the standard details for'this joint from the City of
Allen and the City of Mansfield for your review.
Subject to your approval, EBCC would remove the unacceptable keyway by sawing the concrete
slab two to three inches from the edge of the slab. After removing the excess concrete, EBCC
would prepare the edge of the slab for dowel bars in accordance with the detail selected by your
office.
Please inform our office of your decision regarding this proposal. If you have any questions
regarding this information, don't hesitate to contact our office.
S' cerely, .
. ~ - ! ion Company
Robert D. Weber
Project Engineer
XC:
Mr. Kevin C. Young, E.I.T., Freese and Nichols, Inc., 170iIN. Market, Suite 500, LB 51
Dallas, Texas 75201
AN EQUAL OPPORTUNITY EMPLOYER
· 'rr '~r .... []
CONSTRUCT]ON JOINT
SPACING DIAGRAM FOR
TRANSVERSE JOINTS
SAWED CONTRACTION JOINT
BUTT JOINT
CONCRETE HEAOER
EXPANSION JOINT ·
GENERAL NOTES,
PAVING
JOINT DETAILS
CITY OF MANSFELD
ENGINEERING DEPARTMENT
IDATE: {5HEET NO
NOV., 1997 SD-5
toP. ~/'~' NO
MP
SF. ALING CO OUND
TOP 1/4.' NO
SEAUNC COMPOUND
24.' NO. 8 SMOOTH DOWEL
2'MIN
..S/.',.'+
! 6' DOWEL COATING
J j ~ HOT POURED RUBBER
JOINT SE/U_ING COMPOUND
ll'
/--- _
/
/
REDWOOD EXPANSION-
JOINT FILLER
NOTE:
DOWELS AND REINFORCING BARS SHALL BE
SUPPORTED BY AN APPROVEO DEVlCF_
_ 11/4' MIN CLEARANCE
DOWEL SLEEVE (CLOSED END)
TO RT 0OWEL AND BE
SECURED. TO BE INSTALLED ON
18' CENTER TO CENTER
TRANSVERSE EXPANSION JOINT
(SPACED .~00 FT. MAXIMUM, LOCATE AT INTERSECTIONS)
T = PAVEMENT THICKNESS
9' - 15'
'SAWCUT FULL DEPTH CURB & CUll'ER
~ 24.' LUBRICATED SMOOTH NO. 6 DOWEL BAR
CUT J/a"(M~N)
PROPOSED EXISllNC
'PAVING ~ PAVING'
I'-3' MIN.
.I
I
DOWEL SPACED ON 18'
CENTER TO CENTER, 6 ~NCHES OFF TIE BARS.
T - PAVEME]IT THICKNESS
NOTES:
I. NO. 5 SMOOTH DOWEL BAR MAY BE USED IN 5 INCH AND 6
iNCH PAVEMENT THICKNESS.
2. LONGITUDINAL BUll' CONSTRUCTION MAY BE UTIUZED IN
PLACE OF LONGITUDINAL HINGED (KEYWAY) JOINT AT
CONTRACTORS OPT1ON.
3. DOWEL BARS SHALL BE DRILLED ll~l'O PAVEMENT
HORIZONTALLY BY USE OF A MECHANICAL RIG.
ORILUNC BY HAND IS NOT ACCEPTABLE, PUSHING DOWEL
BARS INTO GREEN CONCRETE NOT ACCEPTABLE.
LONGITUDINAL BUTT JOINT
CITY OF ALLEN
PUBUC WORKS
':PARI'MENT OF ENGINEERING
TRANSVERSE EXPANSION JOINT
LONGITUDINAL BUTT JOINT
STANDARD CONSTRUCTION DETAJLS
PAVING
DATE: SHEET:
SEPTEMBER 1991 SO-P07