ACEC 2007 Engineering Excellence Awards_Olde Stone Quarry Harbor of Refuge

FEB. 21, 2007
-- -
ACEC
AMERICAN COUNCIL OF ENGINEERING COMPANIES
of Wisconsin
PRESENTS THE
ENGI lNG
AWARDS

f~ STS CONSULTANTS
eee Proud recipient of a 2006
Engineering Excellence Award
Olde Stone Quarry Harbor of Refuge
Sturgeon Bay, Wisconsin

-
ACEC 2007 ENGINEERING EXCELLENCE AWARDS----------------1
AMEJUCAN CouNCI~ OF f.NGINf.UING C oMrANIU
o{ Wisco, sitJ
2007
EXCELLENCE
OLDE STONE QUARRY HARBOR OF REFUGE
STS Consultants Ltd., Green Bay
• CLIENI': Door County Parks Department
• CATEGORY: Water Resources
STS Consultants Ltd. won a Best of State Award
for designing the $4.1 million harbor of refuge and
protected boat access at an old stone quarry.
Door County was in need of a harbor of refuge
and boat launch facility. With excellent fishing in
the waters near the former quarry site, a boat
launch and adequate car/trailer parking made this a
desirable site for fishermen.
Safety was a major concern for boaters along this
18-mile stretch of open water between Sturgeon Bay
and Egg Harbor. In addition, the existing boat ramp
at the site left boaters unable to use or return to the
dock when waves covered the ramp.
The Wisconsin Department of Natural Resources
allowed only a minimal footprint on the existing
lake bottom, so most of the harbor had to be built
within the old quarry. Besides the nonuniform
bedrock conditions, STS encountered old boat slips
from quarry operations, old shipwrecks, winter
weather, severe waves, ice and the need to keep
open a county road that ran through the site.
As part of the DNR permitting process, a public
information meeting was held to explain the project
and design process and receive comments. STS'
strong coastal planning and design skills helped
ease public concerns.
"I gave STS high marks for the amount of inves-
tigative research that went into this project," said
Bill Stark, an EEA judge with the Federal Highway
Administration.
By using numerical modeling and value engineer-
ing, STS saved an estimated $500,000 in initial har-
bor construction costs and reduced long-term main-
tenance expenses. The project was completed in less
than one year, and the community received a safe
harbor, protected boat access, restrooms, a gazebo
and other park amenities. Boat launches in 2007 are
expected to increase 250 percent from 2003.
Innovative engineering techniques and materials
were used to expedite the construction schedule
and reduce construction costs. When designing the
new harbor and boat launch, STS used a geotextile
grid - instead of the conventional steel tierods -
12 - F E B . 2 1 , 2 0 0 7
An aerial view of the harbor of refuge and boat launch shows the magnitude of the site. The harbor covers 1.5 acres and
features a six-lane launch ramp, shore a fishing pier, restrooms, a gazebo picnic shelter and parking.
. -
-.._-:::=- -.~....·...~ ~ -'" - ~ -. -
I -- --:-- ,.::: ,_. r .:.._.... :; ~:· -
The Old Stone Quarry Bluff offers a stunning view of the
park and boats in the harbor.
to anchor the steel sheet pile harbor wall in
place.
Installing a conventional anchor wall with
tierods to the face wall in bedrock would have
been more difficult and more expensive. This eas-
ier installation provided the Door County Parks
Department with savings of time and materials.
"The final product was very impressive," said
Tony Fernandez, PE, an EEA judge with the city
of Madison. *
Visitors to the park can enjoy a great view of the harbor
from the entrance. The stone retaining walls on the far
side of the harbor blend in with the walls of the old quarry
in the background.
ACEC WI

ACEC Wl2007 Engineering Excellence Awards
Official Entry Form
Please furnish all information requested below for each entry.
Print Form
Client's firm name
Door County Parks Department
Firm, project name, and client/owner's name(s) should be typed Address 3538 Park Drive
or printed as they are to appear on the award. --------------------
City Sturgeon Bay State WI Zip 54235
Name of project (Limit 35 Characters)
Olde Stone Quarry Harbor of Refuge Owners's firm name (Ifdifferentfrom client)
City Sturgeon Bay State Wisconsin
Entering firm names* STS Consultants, Ltd.
Principal's Name Terrance A. Peterson, P.E.
Title Principal
I have read this Engineering Excellence Awards competition
entry and believe it to be accurate.
Address
City State Zip
Names and locations of other consultants/architects
Armor Stone Consultants, Mr. Dave Lienhart, Cincinnati, OH
Strata Morph Geoexploration, Inc., Mr. Andy Jalbert, Sun Prairie, WI
Paschke Drilling & Blasting, Mr. CAP Paschke, Green Bay, WI
Principal's signature Completion/use dates:
- - - - - - - - - - - - - - Scheduled 9/2006
Name of firm's primary contact Category A-'-co-s-ts_:______
Actua!B/2006
David A. Wentland, P.E. Budgeted$ Actual$ - - - - - - -
Construction costs: 4,000,000
Title Coastal Engineer/Senior Consultant Total project budget$ - - - - - - - - - - - - - - - -
Address 1035 Kepler Drive
City Green Bay
Phone (920)406-3203
State WI Zip 54311
Fax (920) 468-3312
Email address wentland@stsconsultants.com
Name of firm's marketing contact
Malissa Westcot, Marketing Coordinator
Phone (414) 577-1343 Email westcot@stsconsultan
-'----- ----- ts.com a
Location (city) Milwaukee, Wisconsin
This entry is to be judged in the following category (circle one):
A Studies, Research, and
Consulting Engineering
Services
B Building/Technology
Systems
C Structural Systems
D Surveying and Mapping
Technology
E Environmental
F Water and Wastewater
G Water Resources
H Transportation
4,100,000
Total project actual $
E . f I . b d $ 250,000
ntrant's portion o tota proJect u get _ _.:._________
. f I . I $ 291,000
Entrant's portiOn o tota proJect actua _ _.:.__________
I currently believe work ofthe consulting egineer meets the intended
uses and expectations for the project and hereby grant permission to
enter this project in the ACEC WI 2007Engineering Excellence Awards
competition and authorize publication of its outstanding features, unique
aspects, or innovations. I agree that the project was substantially
completed and ready for use between November 1, 2004 and October
19, 2006
Client's contact name George Pinney
-----------------
Titlo Directm ~ 4--
Signature /~~~
Owner's contact name _n_la
______:()'=---7----------
Title
Signature
• /fa joint venture between two or more engineering firms, listfor award Fee: $575 ACEC WI member, $1225 nonmember
and recognition purposes. Include complete address in entry under Check enclosed (payable to ACEC WI) (' Visa (' Mastercard
section "Submitting an Entry 3a or 3b. Cardholder name
Submit form and all materials along with payment to:
ACEC WI
3 S Pinckney St, Ste 800
Madison, WI 537036
608-257-9223
Deadline for Submission:
Thursday, October 19, 2006, 4:30pm
--------------------
Card number___________________________________________
Cardholder street address ------------------
Zip code Expiration date-----------
Official entry form can be completed electronically.
Visit www.acecwi.org to download the form.

2007 ACEC Wisconsin Engineering Excellence Awards Entry
STS Consultants, Ltd .
Entry Category- Water Resources
2.0 EXECUTIVE SUMMARY
~~ STS CONSULTANTS
The Green Bay shoreline in Door County, Wis., was in need of a harbor of
refuge and boat launch facility. With excellent fishing in the waters near the
former old quarry site, a boat launch and adequate car/trailer parking made this a
desirable site for fishermen. Safety was a major concern for boaters along this
18-mile stretch of open water between Sturgeon Bay and Egg Harbor. In
addition, a 1990s boat ramp left boaters unable to use or return to the dock when
waves covered the ramp.
Building a $4.1 million harbor of refuge and protected boat access at an
old stone quarry was a unique and challenging project for the Door County Parks
Department and STS Consultants, Ltd. (STS). The Wisconsin Department of
Natural Resources (DNR) would only allow a minimal footprint on the existing
lake bottom, so most of the harbor had to be built within the old quarry. Besides
the non-uniform bedrock conditions, STS encountered old boat slips from quarry
operations, old shipwrecks, winter weather, severe waves, ice and the need to
keep a county road open that ran through the site.
STS' design used innovative engineering techniques and materials to
expedite the construction schedule and reduce construction costs. The project
was completed in less than one year and the community received a safe harbor,
protected boat access and other park amenities. Boat launches in 2007 are
expected to increase 250 percent from 2003.
THE INFRASTRUCTURE IMPERATIVE
"""' •» >'> ~•,.. ~ A r- _, ..,....... ~ ..,.....,..,~c-. ..._-..,.,,_..-_.~,_,.....,..,_"'~3;l"'JI'!l"P'!
. ....,...~ -

~~ STS CON SU LTANTS
STS Consultants, Ltd.
3.0 PROJECT DESCRIPTION
a) STS' Role in the Project
STS Consultants, Ltd. (STS)
served as the prime engineering
consultant on the Old Stone
Quarry Harbor of Refuge project.
Construction included:
• Blasting a 1.5-acre
harbor into as much as
27 feet of bedrock
• Building a 250-foot
breakwater with armor
stone weighing up to
10.5 tons
• Driving over 1,1 00 feet
of steel sheet pile into
blasted bedrock using
a geogrid as a tieback
b) Role of other Consultants
The blasted bedrock is excavated for the harbor
approximately 13 feet below the lake water level. This
required planning for the excavation sequence and
use of pump systems to dewater the excavation so
that the excavation, sheet wall placement and
concrete placement for the launch ramp could be
done "in-the -dry".
• Armor Stone Consultants, Mr. Dave Lienhart, Cincinnati, OH
The consultant evaluated the suitability of the old stone quarry bedrock
for excavation and breakwaters. The work accounted for 2 percent of
the project.
• Strata Morph Geoexploration, Inc., Mr. Andy Jalbert, Sun Prairie, WI
The consultant determined the importance of underwater artifacts
(shipwrecks, docks and former active quarrying infrastructure) at the
site and how to protect or deal with those site features. The work
accounted for 2 percent of the project.
• Paschke Drilling & Blasting, Mr. CAP Paschke, Green Bay, WI
The consultant determined the full extent of bedrock within the project
site and how to blast and excavate the material so the integrity of the
remaining material was suitable for construction of harbor walls,
anchorages and launch ramp. The work accounted for 5 percent of the
project.

~~ STS CON S ULTANTS
c) STS' Contributions to the Project
Original or innovative application of new or existing techniques
In the past, STS' harbor projects have focused on building out into the lake and
using the limited land area for amenities other than the harbor itself. For this
project, the DNR required a minimal
intrusion into the lake, so STS was
faced with the complexity of creating
a harbor within bedrock and an old
quarry operation. Issues of blasting
and removing bedrock while leaving
competent material for the new
infrastructure became critical
concerns.
STS looks for the best materials and
engineering solution for each
project. For this project, STS used a
geotextile grid instead of the
conventional steel tierods to anchor
the steel sheet pile harbor wall in
place. Installing a conventional
anchor wall with tierods to the "face
wall" in bedrock would have been
more difficult and more expensive.
This easier installation provided the
Door County Parks Department with
a savings of time and materials.
STS worked with Armor Stone
Consultants (ASC) who specializes
in the evaluation of quarry stone for
riprap and armorstone. Their
investigation revealed that the old
A geotextile grid was used as the tie-back system.
The grid is connected to the sheet pile walers and
engineered backfill is placed on top.
During sheet wall construction, the rock piled at
the toe of the sheet wall is used for temporary
support of the wall prior to placement and
backfilling of the geogrid tie-back system. The use
of the geotextile grids required STS to work
closely with the contractor to refine their
installation methods due to the need for temporary
support of the walls during geogrid installation.
quarry would not be able to produce the size of armor stone required for a
breakwater to protect the harbor. ASC discovered that the numerous vertical
cracks at the surface of the old quarry were a result of the area still rebounding
from the weight of the glaciers that covered the area thousands of years ago, and
the cracks extended to great depth. This advance knowledge was critical in the
design of the project.
• .
. .

~~ STS CONSULTANTS
STS also worked with Paschke Drilling & Blasting who specializes in the blasting
of bedrock. The company did an extensive exploration of the below-ground
bedrock surface and determined drilling patterns for blasting and the strength of
the blasts. Their expertise was important for several reasons:
• To minimize impacts on nearby groundwater wells
• To provide a blasted material that is easy to excavate yet suitable for
under layer stone for the breakwater
• To provide near vertical walls and anchorage support for cost-effective
lining of the harbor walls.
The greater degree of pre-design bedrock investigation provided far greater
detail for a good design and on-time and on-budget construction.
Future value to the engineering profession and perception
The innovative use of geotextile grids and other non-traditional materials for
cbnstruction of the harbor walls expands the materials' acceptance in the water
resources field. It gives the engineering field more design choices. In addition,
using these non-traditional materials extends the breadth of application of these
materials.
Social, economic and sustainable design considerations
The Olde Stone Quarry project is a "harbor of refuge". STS' main goal of the
design was to provide a harbor where boaters could launch and land in a
protected "safe" harbor and shelter in the protected harbor during storm
conditions on Green Bay. Boaters, both large and small, can make use of the
launch and feel comfortable venturing out into the bay. This safe harbor also
expands the general public's access to the water, making it available for both
amateur and expert boaters. Boat launches in 2007 are expected to increase
250 percent from 2003. The Door County Parks Department estimates 2,500
launches in the new harbor of refuge in 2007.
STS took great effort to protect the history of the site. An existing shipwreck was
avoided and marked, maritime artifacts were prominently displayed, and the
history of the quarry operations was recognized with signage.
An economical design consideration included the use of a geotextile grid. The
material is more stable, with a longer service life and anti-corroding qualities.
An environmental design consideration included the development of a storm
water collection system at the top of the boat ramp to reduce sediment, nutrients,
oils and greases from draining into the harbor.
~~....~~lr,...__,.'::c'l'"'..-:~~~~-~-
.,, -

Complexity
R~ STS CONSULTANTS
• Economic Solution - An economically viable design of the
breakwater needed to factor in materials, time and labor. STS
conducted research to find the best materials available in the region
and how to best execute the project. STS estimates that the Door
County Parks Department saved nearly $500,000 in initial construction
costs by successfully incorporating cost-saving techniques.
• Difficult Construction
Conditions - STS
encountered winter
weather, severe waves
and ice during
construction.
• Public Opinion -
Waterfront projects,
particularly those in the
public arena, are high
visibility projects that
often attract strong
opinions from people in During the winter construction of the breakwater,
the community. large armour stone is placed into the icy water.
Opinions vary greatly
and proposed projects are controversial. As part of the DNR permitting
process, a public information meeting was held at the Door County
Courthouse to explain the project and design process, and receive
comments. STS' strong coastal planning and design skills helped to
ease public concerns.
• Safety - A harbor of refuge must be a safe harbor. STS considered
numerous issues in the design including wind and wave conditions,
nearshore bathymetry, shoreline alignment, breakwater alignments,
underwater features like sunken vessels and former docks, water
quality and long-term maintenance.
• Regulatory Challenges - Sufficient evidence needed to be provided
to the regulatory agencies to receive construction permits. Detailed
numerical modeling of the lake and harbor was provided in the
investigation and design phases of this project.

Entry Category - Water Resources
Exceeding client/owner needs
~~ STS CONSULTANTS
STS maintained a close working relationship with the Door County Parks
Department Director. The client played a key role in keeping STS informed about
public reaction as the design developed. We utilized email extensively with the
evolving layouts for the client to share with the project committee, interest groups
and regulators.
STS also exceeded client expectations with detailed numerical modeling of
harbor circulation and wave conditions. This allowed significant savings in our
design of circulation methods as compared to measures the DNR was
considering.
Our design provides long-term energy saving of personnel, equipment and
n~tural resources due to our efforts to design the harbor for low long-term
maintenance. STS estimates that the Door County Parks Department saved
nearly $500,000 in initial construction costs by successfully incorporating the
following cost-saving techniques:
• Eliminating circulation culverts through the breakwater and harbor wall
• Bringing a rock crusher on site to produce the core stone for the
breakwater and parking base material
• Using a geotextile grid instead of the conventional steel tieback rods
STS provided a quality project to the client by providing:
• Prequalified bidders
• Bi-weekly construction progress meetings with the owner and
contractor
• Review of all shop drawings with the client.
• Continual value engineering by working closely with the contractor
STS completed the project one month ahead of schedule by keeping close
attention to the project schedule and working through the winter months.
d) Why project is unique
Creating a harbor of refuge in an old
stone quarry by removing up to 27 feet
of bedrock poses unique challenges and
opportunities. Together, with the Door
County Parks Department, STS
succeeded in providing a safe harbor
and boat access in a very special
coastal area of Wisconsin.
. . . .
.

4.0 CLIENT LETTER
...'<'.,_--~•> ~ ~,._~, 7 - "'ir.._,_ ~ ' ' 'II';~O.Y'"''""'"<""'"~"c>_,-"C<~·~-~~ji~•<"~«lfl';'......,
~~ STS CONSULTANTS
__ , -

September 25, 2006
DOOR COUNTY PARKS DEPARTMENT
George K. Pinney, Parks Director
3538 Park Drive
Sturgeon Bay WI 54235
Phone: (920) 746-9959 Fax: (920) 743-9971
Email: dcparks@co.door.wi.us
Re; Client Comment 2007 Engineering Excellence Awards Competition
Olde Stone Quarry Harbor of Refuge and Boat Launch
In 1997, Dave Wentland of Coastal Planning approached Door County Parks
with the concept of creating a harbor of refuge at Olde Stone Quarry
County Park. Because of the complexity of the project and the projected
cost of 4 million dollars, many hours were spent researching details and
permitting requirements. Nine years, three feasibility studies and multiple
grant applications later we were able to secure permits and sufficient funds
to move forward with the project. Dave and Coastal Planning provided us
with detailed information that allowed us to answer the concerns of the
permitting agencies as personal and regulations continued to change.
In 2005, as we were working our way through final design stages of the
project, Coastal Planning became a part of STS Consultants. STS was just
completing a similar, 1.6 million dollar project for us in Little Sturgeon. We
were extremely pleased with the partnership we had formed with STS on
that project and are please to report that the transition was seamless and
the project never missed a beat. STS had been vigilant in the over site of on
often absentee general contractor in our previous project. Coastal Planning's
relationship with STS only strengthens its ability to perform.
As we went from design to construction at the Olde Stone Quarry, STS's
over site and guidance through the project allowed us to continue as design
changes were being made. Several times in the project, conditions were
discovered that only could be evident during construction. Timely design
changes were recommended, decisions made and the project continued to
move forward.
Construction began August 15, 2005 and was scheduled to be completed
within 12 months; however, it was actually completed in 11 months, allowing
us to open the facility to the boating public on July 15, 2006. It should also
be noted that the project had a projected cost of 4 million dollars. This cost
was estimated in 2004 and even though steel and asphalt prices have risen

substantially, we were able to keep the project costs within 2.5cro of the
original budget. This was in no small part due to the design efficiencies
provided by STS.
We are pleased with our relationship with STS and very proud of the final
product that we have created together. This new park is well received by
the boating public and has already broken attendance records.
Respectfully submitted
Jlo!!fZ
George K. Pi~
Door County Parks Director

STS Consultants, Ltd .
5.0 PRESS RELEASE
,, -~ "~·,.,.-~~-,..,~ · ~-=-· ·;- ~......,~r._..-._,.,.,-~-."""""~'-,.-.J0-~1 ~~=~""'~~·'!'1'""7'~"
~~ STS CONSULTANTS

([~ STS CONSULTANTS
Press Release
FOR IMMEDIATE RELEASE
For more information contact Michelle Krier, Marketing Services Manager
(414) 577-1337
krier@stsconsu/tants. com
e STS CONSULTANTS, LTO.
1035 Kepler Drive
Green Bay, WI 54311
Phone: (920) 468-1978
Fax: (920) 468-3312
STS Receives ACEC Engineering Excellence Award for Olde Stone Quarry
Harbor of Refuge
Green Bay, Wis.- STS Consultants, Ltd. (STS) received an Engineering Excellence Award from the American
Council of Engineering Companies (ACEC) for designing the $4.1 million Old Stone Quarry Harbor of Refuge in
Sturgeon Bay, Wis., for the Door County Parks Department.
By using numerical modeling and value engineering, STS saved an estimated $500,000 in initial harbor
construction costs and reduced long-term maintenance expenses. The project was completed in less than one
year and the community received a safe harbor, protected boat access, restrooms, gazebo and other park
amenities. Boat launches in 2007 are expected to increase by more than 250 percent from 2003.
Building a harbor of refuge and protected boat access at an old stone quarry was a unique and challenging
project for STS. The Wisconsin Department of Natural Resources (DNR) would only allow a minimal footprint on
the existing lake bottom, so most of the harbor had to be built within the old quarry. Besides the non-uniform
bedrock conditions, STS encountered old boat slips from quarry operations, old shipwrecks, winter weather,
severe waves, ice and the need to keep a county road open that ran through the site.
When designing the new harbor and boat launch, STS used a geotextile grid instead of the conventional steel
tierods to anchor the steel sheet pile harbor wall in place. Installing a conventional anchor wall with tierods to the
"face wall" in bedrock would have been more difficult and more expensive. This easier installation provided the
Door County Parks Department with a savings of time and materials.
-more-

f.~ STS CONSULTANTS
Press Release
Page 2 - Olde Stone Quarry Harbor of Refuge
e STS CONSULTANTS, LTO.
1035 Kepler Drive
Green Bay, WI 54311
Phone: (920) 468-1978
Fax: (920) 468-3312
As part of the DNR permitting process, a public information meeting was held at the Door County Courthouse to
explain the project and design process and receive comments. STS' strong coastal planning and design skills
helped to ease public concerns.
"STS is honored to receive this notable accomplishment from ACEC," said Paul Blindauer, STS' Green Bay
Regional yice President. ''This project demonstrates STS' ability to design a safe harbor for boaters with an
expedited schedule and under complex circumstances."
Headquartered in Vernon Hills, Ill., STS Consultants, Ltd. is a professional services firm specializing in site
planning, design and construction engineering. Recognized for our capabilities in complex foundations,
construction services, site development, facilities support and transportation engineering, STS helps our clients
succeed with unique and complex projects around the world. STS has been a leader in providing environmental
and engineering solutions for nearly 60 years with more than 550 staff members in 18 offices.
###

6.0 PHOTOGRAPHS
~ ~~~ M < > w - - .~. - ;-"0 -~':.-.-1<~'"'-lr'"'~~~ '':"""~""'!"!
~~ STS CONSULTANTS

Entry Category - Water Resources
Photo 1
~~ STS CONSULTANTS
This aerial photo of the Harbor of Refuge and Boat Launch shows the magnitude
of the site. The harbor is 1% acres, with a six-lane launch ramp,
shore fishing pier, restrooms, gazebo picnic shelter and parking.
;; "''!"·'~- ,- .,..~~.., ~ '":~""'"""' "' r '"'"' • ~~~~""""'W"::''f'i"":'f!"<,ll'""~~,.-.,.~,.,.-~
_ . ......, -

Photo 2
~~ STS CONSULTANTS
The entrance sign to the Olde Stone Quarry County Park Harbor
of Refuge and Boat Launch welcomes visitors to the site. The park also provides
access and parking for SCUBA diving, offshore fishing
and other water recreation.
-,o~ •• ...- -~,..~ • .,.. ~-_,,,. . . :;:·~"",.-., ~...... ·~- """"" .. ,,~·~"'' ·--~'"'''"'!''~'''~~~...

Photo 3
R~ STS CONSULTANTS
Visitors to the park have a great view of the harbor from the entrance.
The stone retaining walls on the far side of the harbor blend in
with the walls of the old quarry in the background.
THE I NFRASTRUCTURE IMPERATIVE
- ~...,....~........~-~l":r'l!....t:'l~~~~"""' ,.~~ ..,. -~.,,~..,.~ .,....,.~..,. .,.,....~~~~~~

Photo 4
~~ STS CONSULTANTS
From the breakwater, visitors have a great view of the park. The new harbor and
boat launch compliments an excellent shore fishing pier on the right side of the
photo. The buoy marks the landward edge of an old shipwreck viewed by many
SCUBA divers that visit the park.
- ~ ~- -, ' -.,....- r l ' """' ~ .. • " "~~~.._..,,.~-""""_.,.,..-=_.-~~~~

Photo 5
~~ STS CONSULTANTS
The Old Stone Quarry Bluff offers a stunning
view of the park and boats in the harbor.
, , ,, '""-' - - · • - v ....,,,~ , • •,., ~r~ ··,~-- ~ ~-~".r.•=.o:r<T.~_...,.~

Photo 6
R~ STS CONSULTANTS
Visitors learn about the previous quarry operations on the site
from the prominent "Leathem and Smith Quarry" plaque.
The quarry is more than 60 acres and operations began in 1893.
An old ship keel with propeller is also placed on display near the boat launch.
"!!':",-...';:~"' r~"'l>""'"'<' -.v -r ~··~..-'i"'f"~""~-,,G-.-.;-~.,..,,I'r.--~•.,•>' 'O?"'!~Tn,.,.,..#

ACEC 2007 Engineering Excellence Awards_Olde Stone Quarry Harbor of Refuge

ACEC 2007 Engineering Excellence Awards_Olde Stone Quarry Harbor of Refuge

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ACEC 2007 Engineering Excellence Awards_Olde Stone Quarry Harbor of Refuge