ST8806-CS 890217 (2)DeShazo, Starek & Tang, Inc.
Engineers · Planners
330 Union Station · Dallas, Texas 752112 - 21-i 748~'7..tt~
February 17, 1989
Mr. Russell Doyle, P.E.
City of Coppell
255 Park Blvd.
Coppell, Texas 75019
Re: Park Blvd. Paving Improvements
West of Alex Drive
Dear Mr. Doyle:
At your instructions, we have enclosed proposals for engineering
services and a summary of probable costs to improve Park Blvd west
of Alex Drive. Based on recent unit costs, we estimate that the
construction cost will be approximately $138,000; however, in the
current economic environment the cost could range as Iow as
$100,000.00.
We have reviewed plans prepared for this improvement by Threadgill
and Dowdy Consulting Engineers. We suggest that the plans be
updated for the following reasons:
1. It "is evident from existing cuts that the original cross-sections
have been disturbed.
2. Existing benchmarks are located one-half mile from the site
and are likely to have been disturbed during the last six years.
3. Existing pavement needs verification to confirm compliance
with existing plan stationing and elevation.
We suggest completion of this work in two possible phases. Phase A
would include:
1. Updating existing plans in sufficient detail for staking and
confirmation of quantities.
2. Confirming that the plans are consistent with the City's
specifications.
This would allow the updated plans to be incorporated by change
order into your Denton Tap improvement currently under
construction.
Phase B be would provide that our firm be contracted for completion
of contract documents, bidding, staking and construction admin-
istration.
Mr. Russell Doyle, P.E.
February 17, 1989
Page 2
We have enclosed proposals for Phase ^ and B.
Please do not hesitate to call if we can answer any questions.
Sincerely,
Paul A. Lipscomb, P.E.
Vice President
PAL/np
encl
SUMMARY OF PROBABLE ENGINEERING COST
PHASE A
Feb. 16, 1989
SURVEY SERVICES
Establish benchmarks, cross-sections every 100 feet
Establish centerline and establish limits of paving
Crew 32 hrs. x $70 = $2,240
Survey Director 4 hrs. x $60 = $240
Reduce/Plot 20 hrs. x $50 = $1,000
Expenses $220
SUBTOTAL $3,700
ENGINEERING SERVICES
Meetings
Principal 2 hrs. x $100 = $200
Director 3 hrs. x $80 = $240
Proposal Evaluation
Principal i hrs. x $100 : $100
Director 10 hrs. x $80 : $800
Survey Dir. 3 hrs. x $60 = $180
Plan Preparation
Principal 2 hrs. x $100 = $200
Director 12 hrs. x $80 : $960
Project Engr. 32 hrs. x $50 = $1,600
Tech/Draft 20 hrs. x $40 : $800
Expenses $320
SUBTOTAL $5,400
TOTAL $9,100
SUMMARY OF PROBABLE ENGINEERING COST
PHASE B
Feb. 16, 1989
SURVEY SERVICES
Staking
Crew 24 hrs. x $70 : $1,680
Surv. Director 4 hrs. x $60 = $240
Expenses $180
SUBTOTAL $2,100
ENGINEERING SERVICES
Contract Documents
Principal 3 hrs. x $100 = $300
Director 30 hrs. x $80 = $2,400
Technician 16 hrs. x $40 = $640
Secretarial 6 hrs. x $42 = $252
Expenses 410
Construction Administration*
Principal 3 hrs. x $100 = $300
Director 40 hrs. x $80 = $3,200
Expenses $300
SUBTOTAL $7,802
TOTAL $9,902
*Inspection and Testing by City of Copppell
PROBABLE CONSTRUCTION COST
PARK BOULEVARD
WESTBOUND LANES
Feb. 16, 1989
Unit
Description Unit Price Quantity Amount Total
8" 3500 psi RC Pavement S.Y. $19 4,500 $85,500
Street Header L.F. $8 62 $496
Unclass. Street Excav. C.Y. $10 1,750 $17,500
Hydrated Lime, 30#/SY S.Y. $75 71 $5,325
Lime Stabilization S.Y. $1.75 4,700 $8,225
Borrow C.Y. $5 400 $2,000
6" Curb, 3000 psi L.F. $1.40 3,000 $4,200
10' Inlets EACH $2,500 3 $7,500
18" RCP Pipe L.F. $60 25 $1,500
Subtotal $132,246
Plus 5% Contingency $6,612
TOTAL* $138,858
*Estimate does not include sidewalks.