HomeMy WebLinkAbout2008-1000410$.08
Board of County Commissioners
180127th Street
Vero Beach, Florida 32960
Telephone: (772) 567-8000 FAX: (772)-778-9391
Field and Laboratory Quality Control (QC)
for
Oslo Road and Oslo Road Boat Ramp Improvements
IRC Project No. 0381
WORK ORDER NO. 3 (Engineering Division)
FOR
FOR PROFESSIONAL GEOTECHNICAL SERVICES AGREEMENT
FOR ANNUAL GEOTECHNICAL SERVICES CONTRACT NO. 0534
WITH
DUNKELBERGER ENGINEERING & TESTING, INC.
All services performed under this contract shall be supervised and certified by a licensed
Professional Engineer (PE) registered with the State of Florida and staff employed directly with
your firm.
Scope of Services
All work shall be performed on a unit price basis in accordance with the attached Scope of
Services dated September 11, 2007 and shall comply with Standards enumerated in the
RENEWAL OF THE ANNUAL GEOTECHNICAL SERVICES CONTRACT IRC PROJECT NO.
0534 WITH DUNKELBERGER EGINEERING & TESTING INC. Effective Date: October 1,
2007.
Minimum Specification Requirements as follows:
PROJECT CONSIDERATIONS
This project involves improvements to approximately 3,000 feet of Oslo Road (9`" Street SE)
east of US 1 in Indian River County, Florida. The existing Oslo Road east of US 1 is a 2 -lane
paved road for a distance of about 1600 feet, where it becomes a dirt road that extends east to
a boat ramp leading to Indian River Lagoon. The proposed improvements on Oslo Road begin
at about 1,100 feet east from the US 1 intersection (Station 245+17) and end at a planned cul-
de-sac at Station 275+45. Both sides of the existing road are densely wooded.
The improvements between Stations 245+17 and 250+00 will consist of leveling and resurfacing
the asphalt surface of the existing paved roadway, along with 2 -foot widening in some sections.
Between Stations 250+00 and 263+40, the proposed improvements will consist of paving two,
11 -foot wide travel lanes. Between Stations 263+40 and 267+40, the improvements will consist
of a divided two-lane paved road with a sodded median. From Station 267+40 to 272+40, the
proposed improvements consist of two 12 -foot wide lanes, along with a 40 -foot wide boat trailer
parking area and 20 -foot wide access drive to the south. Between Stations 272+40 and
274+70, the proposed improvements will consist of two 12 -foot wide lanes and a 30 -foot wide
parking area to the south. Six to 8 -foot wide stabilized outside shoulders will be constructed
along the length of new paved roadway.
F:Tngineering%Capital ProiectsM81 Oslo Road Boat RamplAgenda's & Contract0381 Oslo Boat Ramp WO# 3 Dunkelberger 03-25-08.doc
WO#3
Oslo Road and Oslo Road Boat Ramp Improvements
IRC Project No. 0381
According to
the provided cross sections, minimal
earthwork is planned on the north side of the
road. On the
south side of
the road, the proposed
improvements will involve about 4 to 5 feet of
fill placement
in an existing
swale and 2 to 3 feet of cut for the swale on south side.
A wet detention pond is proposed on the south side of the road between Stations 272+40 and
274+70. Majority of this wet detention pond footprint is located within an existing wet ditch line.
The pond bottom will be excavated to elevation -5.0 feet with respect to National Geodetic
Vertical Datum, 1929 (NGVD).
The existing boat ramp will
be improved to a concrete ramp and new
wood decking access piers
will be constructed on both
sides of the ramp.
One fishing pier also
will
be constructed north of
the boat ramp. The access
ramps and fishing
piers will be supported
by
timber piles.
SCOPE OF STUDY
The geotechnical work for this project will consist of the following components:
Field Exploration
Roadway Soil Survey
Auger borings will be drilled at about 200 -foot centers on the south side of the
roadway and at about 600 -foot centers on the north side of the roadway. The borings
will be positioned at the edge of the existing roadway. All auger borings will be
drilled to a depth of 6 feet. The borings will be drilled using our truck -mounted or
hand -turned drilling equipment. IRC will be responsible for notifying all the
appropriate private property owners regarding our field exploration.
2. Groundwater levels will be measured in each of the boreholes upon their completion.
3. Temporary piezometers will be installed in 4 of the boreholes at 600 -foot intervals.
Water levels in the piezometers will be measured once a week for period of three
weeks.
4. Two bulk soil samples will be obtained for laboratory Limerock Bearing Ratio (LBR)
testing.
5. Muck probes will be performed in the wooded areas on the south side of the road
where automobile and boat trailer parking is planned to determine the presence of
surficial soft and/or organic soils.
6. Muck probes will be performed near the shoreline where the boat ramp is planned
and where feasible in the wet ditch line where the detention pond is planned.
Two
pavement
cores will be
obtained from the existing
paved section of road at the
west
end of the
project
limits.
8. Three, 40 feet
deep
Standard Penetration
test borings will be done for access docks
and detention
pond.
These borings will be
grouted upon completion.
F:\Engineering\Capital Projects\0381 Oslo Road Boat Ramp\Agenda's & Contracts\0381 Oslo Boat Ramp WON 3 Dankelberger 03-25-08.doc
WO# 3
Oslo Road and Oslo Road Boat Ramp Improvements
IRC Project No. 0381
9. Baseline turbidity readings will be obtained in Indian River Lagoon adjacent to the
boat ramp and in the existing wet ditch on the south side of the road.
MOT will be according to FDOT Design Standards 602 for the boring locations that falls within
15 feet from the edge of the road.
Laboratory Testing
Reporting
Laboratory examination (classification) of the soil samples and physical property
tests of same to establish their plasticity, gradation, organic content, moisture
content and LBR.
Preparation and submittal of a Roadway Soil Survey Report in general accordance
with Chapter 9 of FDOT's Soils and Foundation Handbook (2006). The report will
address plastic or unsuitable soils (limits and volume), if present, projected water
table levels, and design/construction options to deal with potential plastic soils and
perched water (e.g., medians). The report will include drafted cross-sectional
profiles of the subsurface conditions with AASHTO soil classifications.
Pile capacity graphs will be provided for the timber piles that will be used to support
the access ramps and fishing piers. Dunkelberger will require nominal diameter of
the piles, design scour depth and design capacity of these piles to determine the
minimum length of the piles.
All work shall also comply with the current Florida Minimum Technical Standards.
COMPENSATION.
The COUNTY agrees to pay, and the Geotechnical Professional agrees to accept, a fee for
services rendered according to the "Scope of Services" identified in the attached EXHIBIT 'W'
Fee Schedule and Man Hours.
A Not -to -Exceed Amount of: $12.489.50 to be paid on a unit price basis for actual work
performed in accordance with the schedule of services and fees set forth in Exhibit A of
RENEWAL OF THE ANNUAL GEOTECHNICAL SERVICES CONTRACT IRC PROJECT NO.
0534 WITH DUNKELBERGER EGINEERING & TESTING INC. Effective Date: October 1,
2005.
TIME FOR COMPLETION
Following receipt
of
the
written authorization to
proceed, the estimated schedule for the
geotechnical work
will
be
as follows:
• Project start-up, boring layout and utility clearance and Field Exploration —1 to 2 Weeks
• Laboratory testing — 2 weeks
Engineering analysis, preparation and submittal of draft report —1 to 2 weeks
• Finalize report - 1 week
SCHEDULE TOTAL: 5 to 7 weeks
F:Tngineering\Capital Projects\0381 Oslo Road Boat Ramp\Agenda's & Contracts\0381 Oslo Boat Ramp WOd 3 Dunkelberger 03-25-08.doc
wo# 3
Oslo Road and Oslo Road Boat Ramp Improvements
IRC Project No. 0381
IN WITNESS HEREOF the parties hereto have executed these presents
This 8th day of April , 2008.
OWNER DUNKELSERGER
BOARD OF COUNTY ENGINEERING & TESTING, INC
COMMSIONERS
INDIAN RIVER COUNTY, FLORIDA
is
(Printed name
Approved b .
RCC Vp ii 1 8, 2008
ATTEST: Witnessed by:
Jeffrey K. Barton, Clerk of Circuit
Court
l
Deputy Clerk (Printed name)
Approved as to Form and Legal
"Collins
-Attorney
Q„ Jo�. Baird, County Administrator
C:\Documents and Settings\bahiU.ocal Settings\Temporary Internet Files\OLK58D\9611 BCC Agenda WO# l Dunkelberger 03-25-08 (3).doc
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