DR9201-CS 860113 P. O. Box 478
Coppell, Texas 75019
214 - 462 - 0022
The City With A Beautiful Future ..
TO: Frank A. Proctor, Jr., City Manager~. .~ ~~
FROM: Ed Powell, City Engineer
DATE: January 13, 19~_6_ ..................................................
SU~T~nage Problems In Alley Between Howell& ~
For your information, Mr. Walter PettiJohn requested that we take a look
at the drainage problems along Howell and Bullock and alley between
Howell and Bullock.
In visiting this location we found that the streets were paved with
asphalt and in some sections had virtually no ditches for drainage. The
area is flat with pond water on private property.
It is our opinion after looking at the area that the drainage should be
routed to the north and into the ditch along the railroad tracks. This
could only be accomplished by re-constructing the street with reinforced
concrete and an appropriate storm sewer system. It is estimated that
the cost for this construction will be in the neighborhood of
$252,842.00. The following shows the approximate cost breakdown.
1. $6,283.00 - Unclassified Street Excavation
1300' x 29' x 1.5' = 2,094 s.y. x $3.00 = $6,283.00.
27
2. $4,188.00 - Lime Stabilization
2,094 s.y. x $2.00/s.y. = $4,188.00
3. $5,654.00 - Lime Slurry
2,094s.y. x 27~/s.y. x $200.00/Ton = $5,654.00
2000~/Ton
4. $93,022.00 - 6" (5 sack) Reinforced Conc. Pavement
1300' x 28' = $4,044 s.y. x $23.00/s.y. = $93,022.00
9
5. $16,800.00 - 6" Reinforced Conc. Drive Approach
40 x 9' x 12' x $35.00/s.y. = ~16,800.00 9
6. 42,880.00 - 4" - 3000 psi Reinforced Conc. Sidewalk
2680' x 4' = 10,720 s.f. x $4.00/s.f. = $42,880.00
7. $16,883.00 - Utility Adjustments (10Z) of $168,827.00 = 16,883.00
8. $33,765.00 - Storm Drainage System (20%) of $168,827.00 =
$33,765.00
9. $32,921.00 - Contingencies 15% of $219,475.00 = $32,921.00.
$252,842.00 TOTAL ESTIMATED COST
$252,842.00 = $94.34/Front Foot 2,680 Front Feet
To my knowledge, there are no funds available for this type project.
However, if the city were to front the money for this construction, with
reimbursement coming from the property owners, through an assessment
program, each property owner could expect an assessment of approximately
$4,717.00 based on a 50' wide lot. This number would vary as the lot
widths vary.
It is our opinion that the alley between these two streets should not be
paved due to the fact that there is no outlet at the north end, and
would not be beneficial to all citizens of this community.
Respectfully submitted
Ed Powell, P.E.
City Engineer
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