ORDER NO. :'6107
FLAT ROCK LRKE F'ARI'.
CONSTRUCTION OF THIRD CREEP. CROSSING
On this the 8th day of November 1999, upon motion made by
Commissioner Let z, seconded by Commissioner Griffin, the
Court unanimously approved by a vote of ~-0-0, entering into
an agreement with Vor•denbaum Engineering for certain
engineering services relating to the Third Creek Crossing at
Flat Rock Lake F~ark, such amount not to exceed #4,075, with
F~.~nds coming from L. C. R. R. grant.
COMMISSIONERS' COURT AGENDA REQUEST
PLEASE FURNISH ONE ORIGINAL AND NINE COPIES OF THIS REQUEST AND DOC[IMENT_ S TO BE
REVIEWED BY THE COURT.
MADE BY: Jonathan Letz OFFICE: Commissioner Pct. #3
MEETING DATE: November 8. 1999 TIME PREFERRED:
SUBJECT: (PLEASE BE SPECIFIC)
Consider and discuss authorizing engineering and construction of Third Creek crossing at
Flat Rock Lake Park.
EXECUTIVE SESSION REQUESTED: (PLEASE STATE REASON)
NAME OF PERSON ADDRESSING THE COURT:
Commissioner Pct. #3
ESTIMATED LENGTH OF PRESENTATION:
IF PERSONNEL MATTER -NAME OF EMPLOYEE:
Time for submitting this request for Court to assure that the matter is posted in accordance with Title 5, Chapter
551 and 552, Government Code, is as follows:
Meeting scheduled for Mondays: 5:00 P.M. previous Tuesday.
THIS REQUEST RECEIVED BY:
THIS REQUEST RECEIVED ON: 11/02/99 @ 8:00 a.m.
All Agenda Requests will be screened by the County Judge's Office to determine if adequate information has been
prepazed for the Court's formal consideration and action at time of Court Meetings. Your cooperation will be
appreciated and contn'bute towazds you request being addressed at the earliest opportunity. See Agenda Request Rules
Adopted by Commissioners' Court.
VORDENBAUM ENGINEERING INC
507-D EAST HIGHWAY STREET, FREDERICKSBURG, TX 78624
830-997-4744
FAX N0.830-997-6967
October 20, 1999
Mr. Franklin Johnston, P.E.
Kerr County Engineer
„.~ yvlo Saw Jon-~tsn~o I-+wy.
Kerrville, Texas 78029
Re: Job No. 99098, Low Water Pedestrian Crossing, Third Creek at Flatrock Lake County Park,
Kerr County, Texas, T99098-1.
Greetings,
We have prepared a cost estimate for the above referenced project in accordance with proposal
P99098-1. The services proposed at this time include the following:
1. Field surveying to establish a sufficient number ofcross-sections of Third Creek and tie in the ele-
vations to a USGSbench mark.
2. Establish a flow rate at the site utilizing USGS maps and the regression analysis contained in the
State Department of Highways and Public Transportation "Hydraulic Manual".
3. Establish a "before" water level at the site utilizing the contour maps and the cross-sections men-
tionedabove; and the open channel procedures in the HEC-2 Computer Program.
4. Design a culvert at the base of the proposed concrete riprap crossing to maintain underflow and
minimum overflow.
5. Establish new creek cross sections based on the proposed crossing.
6. Establish an "after" water level at the site using the new cross sections mentioned above; and the
open channel procedures in HEC-2 computer program.
7. Prepare a letter with the above information and submit same to UGRA.
It is estimated that our fees for Items 1 thru 7, above, will not exceed $4,075.00. All services past de-
livery of Items 1 thru 7 will be at the hourly rates and minimum trip charge quoted in the proposal
and pre-approved by you.
If I can be of any further assistance concerning this matter, please feel free to call.
Sincerely,
S k ` ~iwt
Lee E. Line, P.E.
VORDENBAUM ENGINEERING INC
507-D EAST HIGHWAY STREET, FREDERICKSBURG, TEXAS 78624
830-997-4744
FAX N0.830-997-6967
October 20, 1999
Mr. Franklin Johnston, P.E.
Kerr County Engineer
D,. .~_ y,olo
Kerrville, Texas 78029
.Bath /~n-~pn~o f"1'vvy.
Re: Job No. 99098, Low Water Pedestrian Crossing, Third Creek at Flatrock Lake County Park,
Kerr County, Texas, P99098-1.
Greetings,
PROPOSAL
We are pleased to propose to render professional engineering services in connection with the above
referenced project. You aze expected to furnish us with full information as to your requirements
including any special or extraordinary considerations for the project or special services needed, and
also to make available all pertinent existing information and data. Unless otherwise agreed to in
writing by both of us, we will have the right to reasonably rely upon the accuracy and completeness
of such data.
The proposed analysis will be completed for the 100 year frequency, 1% probability flood. While
the calculations and data represent accepted procedures, it must be kept in mind that the procedures
utilize statistical data and are subject to the accuracy of historical data. In other words, the calcula-
tions attempt to predict future events which would occur in 100 years, based on a limited number of
years historical data. The calculated flows and flood elevation in no way guarantee that a greater
flow and higher flood elevation will not occur during the service of any existing or proposed struc-
ture. Final decisions as to habitation of existing structures or the siting of future structures should
take into consideration the existing terrain and the results of higher flow and higher flood elevation.
Our services proposed are generally listed in the GENERAL PROVISIONS (EJCDC No. 1910-8,
1983 Edition). The GENERALPROVISIONS are available upon request from this office.
You will pay us for our services based on the following:
1. An hourly rate of $85 per hour for Engineering Time, $65 per hour for Graduate Engineering
Time, $45 per hour for Technician Time and Travel Time, and Reimbursable Expenses at actual cost
for additional items or other items listed in the GENERAL PROVISIONS.
2. A minimum trip charge of $165.00, which includes one hour of Engineering Time and Travel
Time.
We will bill you monthly for services and Reimbursable Expenses. Significant outside services
(i.e. surveying, geotech, etc.) will be billed at cost plus an administrative fee of 15%.
The above financial arrangements are on the basis of payment of our bills within 30 days and the
orderly and continuous progress of the Project.
BILLING DISCOUNTS AND LATE CHARGES:
1. If you pay your invoice so that this office receives payment within 10 days after the invoice date,
you may deduct 5% from the invoice amount. '
2. If you pay your invoice so that this office receives payment within 20 days after the invoice date,
you may deduct 2% from the invoice amount.
3. If you pay your invoice so that this office receives payment within 30 days after the invoice date,
please pay the full amount of the invoice.
4. For those invoices requiring re-invoicing, a 2% late charge will beadded ateach re-invoicing.
We would expect to start our services promptly after receipt of your signed acceptance of this
proposal.
It is necessary that you advise us in writing at an early date if you have budgetary limitations for
Total Project Cost, Construction Cost, or our Consultant fees.
This proposal and the General Provisions represent the entire understanding between you and us in
respect of the Project and may only be modified in writing signed by both of us. If it satisfactorily
sets forth your understanding of our agreement, we would appreciate your signing the enclosed copy
of this letter in the space provided below and returning it to us. This proposal will be open for
acceptance for (60) sixty days from this date.
Very truly yours,
VORDENBAUM ENGINEERING, INC.
~~ //
Stuart W. Vordenbaum
(ENGINEER)
Accepted by (CLIENT)
Date: ~~
Signature•