WHO IS AQUATIC CONTRACTING?
Specialized Experience and Backgrounds - Founded by a fisheries biologist, Aquatic Contracting is committed to restoring and enhancing habitat throughout the
Northwest, and leads the construction field in stream and wetland restoration. With a team of employees who have a keen understanding of not only construction, but habitat
and fisheries as well, Aquatic Contracting brings specialized expertise to every project. Our goal is to provide
customers with unique, cost-effective solutions for all their construction needs.
Customer Service - Aquatic Contracting is committed to providing consistent and professional customer service.
We take pride in our reputation. Our continued referral business is a testament to the quality of our projects and client satisfaction.
Superior Product - With our varied team knowledge in fisheries biology and aquatic construction practices, we offer a comprehensive approach to each habitat restoration project. Our projects consistently cost less, require minimal owner supervision and result in a superior finished project.
Detroit Ranger District Tree-Tipping video
Metro testimonial letter
Tillamook Estuaries Partnership testimonial letter
Fleet Industrial Supply Center Puget Sound &&br&tbtestimonial letter
Crooked River Watershed Council testimonial letter
City of Portland testimonial letter
Friends of Fox Creek testimonial letter
US Forest Service testimonial letter
WHO WE ARE
Founded in 2001 by a fisheries biologist, Aquatic Contracting (AC) is committed to leading the construction field in habitat restoration.
After several years of managing and researching restoration projects in the Pacific Northwest, the principals of Aquatic Contracting combined their knowledge of habitat and expertise in construction to create a company uniquely qualified in the field of stream and wetlands restoration.
Comprised of individuals from the Pacific Northwest, our staff is committed to restoring fish and wildlife habitat within our region. We do this by working cooperatively with landowners, fisheries groups and government agencies. Our goal is to see the abundance and health of our fisheries return to the levels of the “good old days”.
AC is committed to being a full service contractor. Our expertise in design/build along with our ability to provide planning, permitting, and construction services makes us leaders in the field of habitat restoration. We continue to develop and expand our services to meet the increasing needs of restoration.
Recently our forestry division was expanded to include specialized low-impact restoration methods. We’ve enhanced our cable and winch services, added tree-tipping capabilities, and increased our equipment capacity for skylines and cable yarding.
Our growth and expansion has resulted in the following contracts:
- Multi-year IDIQ for the United States Forest Service (USFS)
and the Bureau of Land Management (BLM) for Tree
Tipping and Stream Restoration
- Multi-year Forest Engineering and Road Maintenance
including stream restoration for the USFS
- Master Services Agreement for Environmental Services
with the Bonneville Power Administration
Bureau of Land
Bureau of Land
City of Albany
City of Centralia
City of Clatskanie
City of Portland
City of Tacoma
Clackamas County Water
Clean Water Services
Soil and Water
of the Umatilla
Crooked River Watershed
The Freshwater Trust
Friends of Fox Creek
Four Mile Canyon
Glendale Country Club
Horseshoe Bend Wind LLC
Mid Sound Fisheries
of Fish and Wildlife
Oregon State Parks
Pilz & Company
Portland General Electric
Puget Sound Energy
R&R Land Development
River Design Group
Scappoose Bay Watershed
South Hurlburt Wind LLC
South Puget Sound Salmon
Tukwila School District
The Tulalip Tribes
United States Navy
USFS – Mt Hood
USFS – Ochoco/Deschutes
USFS – Olympic
USFS – Willamette
of Fish and Wildlife
of the Military
Aquatic Contracting provides expertise beyond most general construction companies. Our fisheries biologists have studied salmon and trout habitat and many of our equipment operators and laborers have specialized experience relating directly to the field.
AC provides customized service in all aspects of water-based construction and restoration allowing us to offer our clients creative solutions and often cost-effective alternatives that our competitors can't.
In a continuing effort to better serve our clients and streamline the construction process, Aquatic Contracting's Professional Wetland Scientist (PWS), Botanist, Certified Arborist and Fisheries Biologist also provide associated Consulting Services.
WHO WE PROVIDE SERVICES TO]]>
Cable and winch services
Woody debris placement
Water control structures
Log weir construction
development and maintenance
Golf Courses and Resorts
SOUTH FORK SKOKOMISH RIVER LARGE WOOD ENHANCEMENT PROJECT
HOOD CANAL RANGER DISTRICT
AC was contracted by the Olympic National Forest to construct this large-scale stream enhancement project on the Skokomish River. Over 3000 whole trees with root wads were initially staged on over one mile of the Skokomish River by helicopter. AC staff then reconstructed an abandoned forest road to provide heavy machinery access before log jam construction.
Numerous log jams were constructed containing as many as 600 trees. Working closely with USFS staff, AC installed log jams along the edges of the main channel, on the floodplain, on active gravel bars, and at tributary outlets of the South Fork Skokomish River. To increase log jam stability, large portions of each structure were buried below the streambed. Whole trees were often buried as pilings and anchor trees to help increase stability. The final log jam constructed contained over 600 whole trees and was nearly 400 feet long, 16 feet high and over 60 feet wide. It is estimated to be one of the biggest engineered log jams ever constructed in the Northwest.
Team members included the Skokomish Nation, Olympic National Forest, Washington State SRF Board, and was designed by Brian Bair of the USDA Forest Service TEAMS Enterprise Unit.
SALMON RIVER RESTORATION
(SALMON RIVER AT MILLER’S QUARRY)
AC was contracted with The Freshwater Trust, Bureau of Land Management and the U.S. Forest Service to construct the Salmon River at Millers Quarry Restoration Project. AC tipped, bucked and hauled 70 large fir trees with root wads to the site prior to construction. All materials were then hauled down to the river using off-road dump trucks to minimize impacts of dragging or skidding logs. AC then constructed 15 large in-river log jams to provide habitat, cover and recruit spawning gravel. A 900 foot side channel was constructed to provide off-channel habitat and refugia. The project was constructed under budget and in less time than anticipated.
STOUT CREEK BANK STABILIZATION
AND HABITAT ENHANCEMENT PROJECT
Working with the North Santiam Watershed Council and River Design Group, Aquatic Contracting began the Stout Creek Bank Stabilization and Habitat Enhancement Project under a tight timeline before the fall rains.
The project was constructed on a design/build basis with many of the aspects built with a “fit in the field” approach. The 250 foot stretch of stream had migrated toward an existing house and lacked any roughness or habitat features.
The creek was diverted and a series of turbidity curtains were placed on the downstream end of the project. Aquatic Contracting then constructed log jams and soil lifts to stabilize the bank and add habitat. The thalweg was moved away from the stabilized bank. A side channel was constructed to handle higher flows, alleviating some of the velocities from the main channel. The new bank, soil lifts and side channel area were planted with willows and other native vegetation.
SALMON AND COX FISH PASSAGE
ST. HELENS, OR
AC was contracted by the Scappoose Bay Watershed Council to improve fish passage at existing road crossings of Salmon Creek and Cox Creek.
For the Brinn Road crossing of Salmon Creek, AC installed a 22 foot wide, 75 foot long aluminum multi-plate culvert founded on pre-cast concrete footings. The project required constructing the culvert in two phases to maintain public access along Brinn Road for the duration of the project. Other aspects of the project included fish salvage, pumping, and channel diversion. Shallow bedrock was encountered and removed to reach footing grade. Immediately prior to construction a population of freshwater mussels was found within the project area, and AC adjusted dewatering and disturbance areas to minimize impacts.
For the Brooks Road crossing of Cox Creek, AC installed a 13 foot wide, 50 foot long aluminum multi-plate culvert founded on pre-cast concrete footings.
FOX CREEK ENHANCEMENT
AC was contracted by the Friends of Fox Creek to assist with design, construction feasibility and finally install over 140 pieces of LWD along approximately 1 mile of Fox Creek. The project included hauling donated logs from offsite source areas, as well as tipping, bucking, and transporting onsite donated trees (with root wads) selected for use in this project. As a design-build project, general locations of proposed structures were provided and AC staff worked with Friends of Fox Creek staff to maximize habitat benefits of each log placement. Logs were intertwined with existing live trees, wedged against one another, and grouped to create pinch points to encourage pool creation and gravel retention in this gravel deficient reach of Fox Creek.
YELM CREEK OFF CHANNEL HABITAT ENHANCEMENT
In order to increase juvenile salmonid habitat in the Nisqually River Basin, The South Puget Sound Salmon Enhancement Group hired Aquatic Contracting to create off channel habitat along Yelm Creek. Aquatic Contracting constructed a large pond and wetland area that connected to the creek. This pond was created to provide off channel habitat during high flows, and cold, deep-water habitat during summer months. Carefully constructed inlet and outlet channels provided year-round flow and created additional spawning habitat.
Research showed the pond was being utilized by juveniles days after completion. It has also provided habitat for amphibians, turtles, waterfowl and raptors.
The Yelm Creek Project was done in conjunction with Chinook Engineering, Nisqually Tribe and South Puget Sound Salmon Enhancement Group.
STOUT CREEK ENHANCEMENT
AC was contracted by the North Santiam Watershed Council to install over 15 large wood structures along one mile of Stout Creek just upstream of its confluence with the Santiam River. Approximately 85 logs were incorporated into in-stream structures to provide increased habitat diversity and complexity within the channel.
CHEHALIS RIVER EMERGENCY BANK STABILIZATION
Contracted by the City of Centralia on an emergency basis, Aquatic Contracting LLC worked to stabilize 200 feet of riverbank using a combination of large wood and rock. During the floods of December 2007, over 11 feet of river bank was lost, exposing two high pressure sewer pipes. Aquatic Contracting carefully placed nearly 2,000 cubic yards of large rock and incorporated a large log jam along the eroded bank. Efforts stabilized the bank and protected the sewer pipe, with the log jam directing river flow away from the bank and increasing fish habitat.
CLEAR CREEK CHANNEL ENHANCEMENT PROJECT
Portland General Electric and Metro Services contracted Aquatic Contracting LLC to increase juvenile salmon habitat in a backwater alcove of Clear Creek in the Clackamas River basin. AC personnel worked with biologists from PGE and Metro to create a wood placement plan that provided additional structure and habitat and could be done utilizing non-intrusive construction methods.
After careful planning, AC began placement of over 65 large logs by cable and winch. The logs were lowered into the creek from an upland area and then floated into pre-determined locations using block and tackles. This method of log placement eliminates the need for heavy equipment in the riparian zone, decreasing soil compaction, erosion, and turbidity, thereby preserving streamside vegetation.
Fourteen new log jams were created. Logs were anchored and pinned in place to ensure stability.
WONSER WOODS FISH PASSAGE CULVERT REPLACEMENTS
AND CLEAR CREEK ENHANCEMENT
AC was contracted by the Clackamas River Basin Council to create additional in-stream habitat along 0.25 mile of Clear Creek and improve fish passage at five locations on a tributary to Clear Creek.
AC utilized specialty logging techniques to push over more than 30 live standing 18 to 24-inch diameter Douglas-fir trees. The tipped trees with root wads were then transported up to 2 miles from the source area to enhancement locations along Clear Creek. Working closely with ODFW staff, AC placed logs to create in-stream structures, intertwining the logs together with existing trees and other logs to create pinch points for long term stability. The log structures will provide additional in-stream habitat as well as help recruit and retain gravels in this largely bedrock-based gravel deficient reach.
As part of this project, AC replaced three aging culverts to allow for increased fish passage. AC also removed and replaced a storm damaged culvert with a ford. Finally, AC improved passage at another location by adding logs and boulders downstream of the culvert to increase pool depth and minimize culvert inlet jump height.
FIVE MILE AND RAMSEY CREEK RESTORATION
Barlow and Hood Ranger Districts
Under AC’s existing Stream Restoration/Fisheries IDIQ contract with the Mt. Hood National Forest, AC transported over 80 logs and root wads from several USFS staging areas to eight project site locations and then utilized a spyder hoe to install the single logs and create channel spanning log jams on 1.2 miles of Five Mile and Ramsey Creeks. Logs were intertwined with existing trees and partially buried to facilitate long-term stability. The project also included excavation of multiple in-stream pools, removal of a concrete irrigation diversion headwall, and additional measures to prevent channel headcutting and improve channel conditions.
HENRY HORSE FARM SALMON ENHANCEMENT
A small but unique project that took place on a private horse farm in the Newaukum Creek Valley. A natural spring
located on the property, flowed year-round but had been channelized and become overgrown. Flowing directly into Newaukum Creek the lower 10 feet remained accessible
to fish and was heavily used as refuge by juvenile salmonids during high flows.
Aquatic Contracting began construction by clearing invasive canary grass and blackberries from the site. Then began restoring the spring-fed channel to its original state, constructing meanders and developing deep-water pools. The mouth of the spring was re-graded and contoured to allow year-round fish access to the spring. A failing pipe was then replaced with a larger more fish friendly culvert. Finally wood and rock was placed in the newly constructed
channel to provide habitat and structure. The area was re-planted with native grasses and vegetation.
The project was done in conjunction with the owners of Henry Horse Farm, Mid-Sound Fisheries, and King County.
CONYERS CREEK BRIDGE PLACEMENT
Aquatic Contracting LLC, was contracted by the Lower Columbia Watershed Council and the Natural Resource Conservation Service to replace two aging culverts with a large arch bridge, improving fish passage and tidal influence on Conyers Creek.
Under a strict timeline, Aquatic Contracting constructed a large coffer-dam in order to keep the project work area dry. The dam kept tidal fluctuations as high as 9 feet out of the project area. 2000 cubic yards of soil were excavated and the old culverts removed. 2000 tons of streambed gravel was placed to create a new channel and provide stability and habitat. For the bridge construction, piling were driven to provide support for the footings. A concrete slab was poured underneath the footing to provide additional stability in
the tidal environment. Footings were then poured and the bridge placed.
To provide slope stability along the bridge wing walls,
log jams were constructed and soil lifts placed on top.
The project was completed in 40 days, inside the
Shortly after completion the project survived the December 2007 flood. Had the project not been completed, it is likely the culverts would have not sustained the storm and flood damage, and the road would have been washed away.
ROSEBURG FISH ENHANCEMENT PROJECT
MYRTLE CREEK, OR
Working with the Bureau of Land Management, Aquatic Contracting was hired to increase habitat structure on Weaver and Martin creeks in the Umpqua River Basin. AC personnel began the project by felling 65 large fir trees. The trees were bucked into pre-determined lengths specific for each logjam site.
Because these sites were in steep, heavily forested canyons heavy equipment could not be used. AC utilized cable and winches, skylines and running lines, winching the logs into pre-determined locations along both creeks. Some sites were up to 1000 feet from the nearest road.
All logs stayed in place during winter high water events. As designed and built, the logs created scour pools, recruited wood and spawning gravel.
DEEP CREEK DAM REMOVAL
AC was contracted by GeoEngineers and Clackamas County Water Environment Services (WES) to remove a concrete weir structure that spanned Deep Creek. The concrete structure functioned as a dam, impounding flow and resulting in a fish passage barrier to resident and ESA-listed anadromous fish alike. Based on the presence of ESA listed fish species in Deep Creek, removal of this passage barrier was considered a priority to ODFW and the Clackamas River Basin Council.
SIMMONS CREEK STREAM CHANNEL
STABILIZATION AND RIPARIAN RESTORATION
KLICKITAT COUNTY, WA
AC was contracted by the Underwood Conservation District to enhance a portion of Simmons Creek. The project included installation of wood and rock weir structures to help reduce downcutting and facilitate improved floodplain connectivity. The complex weir structures designed by NRCS were installed in portions of the creek experiencing significant downcutting, essentially draining the adjacent wet meadow. Weir construction facilitated project goals including enhanced floodplain connectivity and improved hydrology in the meadow, increased sediment capture, and improved summer flow conditions.
FANNO CREEK/GREENWAY PARK ENHANCEMENT PROJECT
Aquatic Contracting LLC constructed 2,100 feet of new stream channel and installed over 30 log jams and single log structures. The logs were placed to mimic trees falling into the channel. The project was designed and constructed to increase fish habitat and reduce flooding on Fanno Creek. The new meandering creek channel was constructed and excavated entirely in the dry. Fanno Creek was then carefully diverted while final excavation directed the creek into the new channel. The old channel was filled and shaped into a shallow swale to allow for storm water treatment from adjacent storm drains. Log jams were pinned, roped, and/or anchored into place, and a new bridge was placed over Fanno Creek.
LOWER COLUMBIA WATERSHED
COUNCIL FLOOD REPAIRS
VERNONIA & CLATSKANIE, COLUMBIA COUNTY, OR
Contracted by the Lower Columbia Watershed Council to repair erosion caused by the 2007-08 floods along the Nehalem and Clatskanie Rivers, Aquatic Contracting LLC (AC) used large rock, wood and bioengineering techniques to stabilize eroding banks and increase floodplain capacity at three sites. Utilizing a “fit in the field” approach, AC worked closely with each landowner, satisfying their needs and concerns while insuring each project functioned per NRCS design.
The first two projects required AC to install large woody debris to stabilize the toe of the banks, then incorporate large rock for ballast and stability. Bioengineering techniques including geotextile encased soil lifts were constructed on top of the large wood and rock structures, lessening the slopes and providing an improved planting area.
On the third project, AC excavated material to increase the functional floodplain, then stabilized the adjacent bank by incorporating large woody debris and rock to protect structures and farmland. The result stabilized the eroding bank, provided improved habitat, and increased flood protection/storage.
All of the projects were completed on a strict timeline within the ODFW in-water work window, and survived heavy floods 2 months later.
CALAPOOIA RIVER FISH HABITAT
ENHANCEMENT & BANK REINFORCEMENT
AC was contracted by the City of Albany to stabilize and enhance approximately 350 feet of the Calapooia River where bank erosion threatened portions of the City’s property and adjacent water treatment plant. Because the City’s downstream water intake and potential for ESA listed species, isolation of the in-water work area, fish exclusion, and turbidity controls were top priorities for the duration of the in-water work. AC installed over 500 feet of turbidity curtain. The project included excavation/import of over 6000 cubic yards of soil and 1000 cubic yards of boulders and rock. The bioengineering components of the project included incorporating approximately 90 conifer logs/root wads into the recontoured banks. AC staff also installed over 2000 feet of geotextile encased topsoil lifts (vegetated soil lifts) on top of the stabilizaed bank. Over 1000 native willow cuttings were obtained from nearby source areas, soaked to facilitate rooting, and then installed amongst the rock/LWD toe, within the in-bank LWD structures, and soil lifts.
The project was done in conjunction with the City of Albany and River Design Group.
WIDOWS CREEK FCA
FISH SCREEN INSTALLATIONS
AC was contracted by Farmers Conservation Alliance (FCA) to install their patented horizontal plate screens at 3 irrigation diversion locations on Widows Creek within the John Day watershed. Waterman gates were also installed at the diversion points decreasing the need for flashboards and minimizing leakage. The goal of the fish screen installations was to eliminate fish entrapment and facilitate fish passage while maintaining 1 to 4 cfs irrigation diversions for several ranchers and farmers.
FCA’s new screen is designed to be self-cleaning, to require minimal maintenance, and is pre-fabricated allowing for ease of installation. AC installed these 3 screens in less than one week and they were utilized immediately upon completion.
ADAMS CREEK AND MCDONALDLAND
Aquatic Contracting LLC was contracted by the South Puget Sound Salmon Enhancement Group to replace several culverts located on private timber land which were failing or impassible to salmon and steelhead. AC diverted water and removed the old culverts, assisting with fish salvage. Subgrade was stabilized as needed, and multi-plate culverts were built on-site. All backfill and road grade was placed to specific compaction standards. Habitat logs and rocks were placed throughout project sites.
The projects were completed in conjunction with South Puget Sound Salmon Enhancement Group, Tappel Engineering and Thurston County Conservation Group.
WHIPPLE CREEK STREAM RESTORATION PROJECT
AC was contracted by Clark County to construct stream restoration and floodplain enhancement measures on approximately one-half mile of Whipple Creek. Development within the watershed has increased stormwater runoff and flooding along Whipple Creek. The resulting incised channel has further disconnected the creek from its floodplain and adjacent wetlands.
To improve floodplain connectivity, minimize channel incision, and enhance in-stream habitat conditions, AC constructed 15 valley-spanning log jams and grade control log structures using over 350 pieces of large woody debris. Using a combination of buried log weirs, rock, and fabric encased soil lifts, AC stabilized portions of the stream bed that had experienced significant downcutting.
At the County’s request, AC returned to construct a nature trail through the approximately 40 acre natural area before installing thousands of native bareroot plants.
FLIGHTS END WETLAND ENHANCEMENT
SAUVIE ISLAND, OR
Ducks Unlimited contracted Aquatic Contracting LLC (AC) to enhance and restore an existing wetland. The control structure which supplied water to the 50 acre wetland was obsolete and beginning to fail. Aquatic Contracting isolated the area by installing a large cofferdam, then removed the old structure and associated pipe. A new pre-cast control structure was placed with larger HDPE pipe and new tide gates. As part of the enhancement, AC also graded 3 acres of wetland and installed culverts to increase wetland hydrology within the site.
SUCCOR CREEK BRIDGE REPLACEMENT
SOUTH OF ADRIAN, OR
Located in a remote region of Southeast Oregon the Succor Creek Natural Area had a railroad car bridge in need of replacement. Aquatic Contracting demolished the old railroad car bridge, which was hauled away for recycling.
A new pre-fabricated wood bridge was constructed on-site utilizing the existing concrete footings. Construction was in line with ADA standards. The project was completed in conjunction with Oregon State Parks and Western Wood Structures.
MCKAY CREEK FISH PASSAGE AND ENHANCEMENT PROJECTS AND ALLEN CREEK DAM REMOVAL
For this Design-Build project, the Crooked River Watershed Council selected GeoEngineers and AC to design and construct fish passage improvements, small dam removals, and habitat enhancement measures. The project included the removal of 3 diversion dams while maintaining existing irrigation and allowing for fish passage. Aquatic Contracting also harvested, hauled and installed over 100 trees for habitat and stability. A 160 foot long side channel was constructed along with 10 rock weirs and 180 feet of new irrigation pipe.
Utilizing the design-build process with GeoEngineers, the Crooked River Watershed council created a project that minimized design, administration and permitting costs, provided flexibility during construction, and allowed for AC to satisfy not only client needs but landowner needs as well.
QUILCEDA CREEK CULVERT REPLACEMENT
SNOHOMISH COUNTY, WA
In October of 2008 Aquatic Contracting LLC (AC) was contracted by the Tulalip Tribes to improve fish passage and create additional fish habitat along Quilceda Creek. AC removed a failing culvert, built concrete footings and installed a 40 foot steel bridge. AC then re-built the creek channel to increase sinuosity and flood plain area/capacity. To improve the aquatic and adjacent riparian habitats, AC placed large woody debris throughout the project site. To increase pool-riffle habitat and spawning area, rock weirs were constructed and gravel placed throughout the reach. The entire site was then re-planted with native vegetation.
DETROIT RANGER DISTRICT TREE-TIPPING
AND STREAM ENHANCEMENT
WILLAMETTE NATIONAL FOREST, OR
Working under our multi-year IDIQ contract with the USFS/BLM, AC provided specialty tree-tipping, cable and winch services, tree climbing, and hazard tree falling services to enhance habitat conditions within portions of the North Santiam River, Straight Creek, and Log Creek. As part of this large stream restoration project AC staff climbed, tipped, relocated, and strategically configured over 200 trees, logs, and root wads into instream structures. The structures will provide hiding cover for fish, improve pool creation, dissipate high flows, facilitate woody debris accumulation, and improve spawning gravel recruitment.
AC used specialized mobile yarding equipment and cable and winch methods to minimize riparian disturbance, tipping trees at distances well over 1000 feet from the yarder. Trees and logs were often winched over 100 yards into designated instream structures.
As part of this project, AC staff also fell a 77-inch diameter hazard tree. According to the USFS and ODOT, the tree’s poor condition and significant lean toward Highway 22 posed an unacceptable threat to highway traffic. The tree was estimated to be 130 feet tall, weigh over 90,000 pounds, and have over a 10 degree lean toward the highway. These factors left little room for error. AC climbed and rigged the tree using a series of blocks to increasing pulling power and insure directional fall. As it was cut, the tree was slowly righted, pulled away from the highway, and directed into a side channel of the Santiam River. Although it was unfortunate to see this tree come down, we were pleased that it could be utilized as part of this stream restoration effort.
For additional information on this project, please click on the attached link to view our Tree Tipping and Stream Restoration video.
Detroit Ranger District Tree-Tipping video
CLEAR CREEK WATER MAIN PIPE REMOVAL &
FISH PASSAGE ENHANCEMENT PROJECT
AC was contracted by the Clackamas River Basin Council to remove an exposed section of abandoned pipe that crossed Clear Creek. The 18-inch pipe functioned as a passage barrier to juvenile fish. The project was implemented to eliminate the barrier and improve upstream fish passage.
Based on site location, access constraints, and permit requirements, AC used low impact/non-intrusive cable and winch methods to extract the 80 feet of steel and cast iron pipe that crossed the creek channel. Several additional pieces of pipe and cable in the vicinity were also removed from the channel, improving fish passage and aquatic and riparian habitats.
NORTH FORK GALES CREEK STREAM RESTORATION
WASHINGTON COUNTY, OR
For this project, AC utilized specialty logging techniques to push over more than 100 live standing 30-inch diameter Douglas-fir trees. The tipped trees with root wads were then transported approximately 1 mile from the source area to Gales Creek. AC staff relocated each log/root wad to create in-stream structures, intertwining the logs together with existing trees and other logs to create pinch points for long term stability.
The project resulted in placement of over 100 logs within 1.2 miles North Fork Gales Creek and the adjacent floodplain. The project reach was devoid of structure and lacked beneficial habitat. The result was greater pool/riffle frequency and increased spawning and rearing area. Targeted species included native Steelhead, Coho and Cutthroat.
This project was completed in conjunction with the Tualatin River Watershed Council, Stimson Timber, and the Oregon Department of Fish and Wildlife.
BEAVER CREEK RESTORATION: MANCHESTER FUEL DEPOT
Working with Mid Sound Fisheries, GeoEngineers and the United States Navy, Aquatic Contracting completed this award winning design/build project over a two-year period.
Development of the Manchester Fuel Depot took place prior to World War II during which the Beaver Creek Floodplain was filled. Beaver creek was forced into a channel, through several fish ladders and then into Puget Sound. This eliminated the Beaver Creek Estuary and channelized the creek for 800 feet.
Aquatic Contracting excavated 20,000 cubic yards of soil to re-create the original floodplain. By cutting through an existing road, 1500 feet of new stream channel was created, reconnecting the original floodplain and estuary. Pools and riffles were constructed along with log and rock placements to create structure and habitat. A 38 x 24 foot arch bridge was placed to re-establish the road. 1200 cubic yards of soil was removed and re-graded to enlarge and enhance the estuary. The lower fish ladder, which kept tidal fluctuation out of lower Beaver Creek for 70 years, was removed. Over 100 logs and rocks were placed throughout the project to provide structure, habitat and stability.
Finally, a large log and rock jam was constructed to direct flow into the newly constructed Beaver Creek channel.
The comprehensive project has won the following awards: 2007 Washington Engineering Excellence Award, 2007 U.S. Fish & Wildlife Service Recognition Award, 2006 Chief of Naval Operations Environmental Award for Environmental Quality- Industrial Installation, 2006 Secretary of Navy Environmental Award for Environmental Quality- Industrial Installation, 2006 Secretary of Defense Environmental Award Honorable Mention.
ELK ROCK ISLAND
OAK RELEASE PROJECT
AC was contracted with the City of Portland to remove, top and/or girdle approximately 35 trees on Elk Rock Island in Milwaukee. Because of accessibility challenges to this island in the Willamette River no heavy equipment could reach the project site. Nearly all of the equipment and materials were hauled to the project area by hand. Trees were directionally felled to minimize damage to existing oaks and sensitive plants. As part of the project a comprehensive spill and environmental protection plan was drafted and implemented to protect existing vegetation and nearby waterways. Several trees were topped to create snags for nesting raptors. The city also selected to utilize AC’s proposal to haul a chipper to the island to chip limbs and debris created by the falling operation. A mini excavator carefully towed the chipper to the island and a large crew was utilized to haul and chip limbs in one day. The City of Portland wrote a letter of commendation for AC’s professionalism, knowledge and innovation throughout the project.
COUGAR CREEK TRAIL RESTORATION AND BRIDGE REPAIR
OCHOCO NATIONAL FOREST
Under our existing Forest Engineering and Road Maintenance (FERM) IDIQ Contract with the USFS, AC was contracted to repair a trail bridge over Cougar Creek, remove another existing trail bridge over Dodd Creek, construct a shallow ford, and then reconstruct trail segments.
KELSEY CREEK RESTORATION: GLENDALE COUNTRY CLUB
Large concrete weirs were constructed in Kelsey Creek in the 1950s in order to slow water flow and decrease erosion. Over the years they eventually became fish passage barriers and changed flow dynamics, which were particularly prevalent in a 1000 foot stretch that flowed through Glendale Country Club. Aquatic Contracting was hired to restore this stretch and enhance fish passage. Construction began by diverting the creek for the entire reach. Stream banks that had eroded and become unstable were re-contoured. Soil lifts and log jams were constructed throughout, increasing bank stability. Over 70 logs were placed with spawning gravel, raising the streambed over 2 feet. This facilitated fish passage and added habitat throughout the stretch. Invasive plants were removed and re-planted with native vegetation. The project was done allowing golf course playability and integrity while enhancing salmon habitat. The project was completed with cooperation from Mid Sound Fisheries, Smayda Engineering and Glendale Country Club.
FISH PASSAGE BYPASS: CROOKED RIVER
WATERSHED COUNCIL/PEOPLE’S IRRIGATION DISTRICT
Aquatic Contracting LLC was contracted by the Crooked River Watershed Council to construct a 350 foot long bypass channel providing fish passage (for reintroduced steelhead) around a 7 foot high, 120 foot wide concrete diversion dam by creating a nature-like fishway. The project included construction of a sheet pile grade control structure, 11 weir/step-pool complexes, 350 feet of new creek channel, a 60 foot long pedestrian bridge, over 2,000 feet of geotextile encased soil wraps, and a log deflection boom. Aquatic Contracting constructed the project during December 2008 and January 2009 and then returned to install additional native plants in March 2009.
Aquatic Contracting received a formal letter of appreciation from the Crooked River Watershed Council for our expertise and responsiveness on this project.
TREE SURVEY FOR THE OREGON ZOO ANIMAL HOSPITAL
AC was contracted by the Oregon Zoo to conduct a tree survey to help with planning, design and permitting of the zoo’s proposed Animal Hospital. AC’s Certified Arborist and a staff scientist documented and tagged all trees greater than 6 inches DBH within the several acre study area. Trees were evaluated for species, size, condition, and damage indicators. Initial hazard tree information was also provided in AC’s written report.
OREGON ZOO SOUTH RAVINE TREE SURVEY
AC was contracted by the Oregon Zoo to conduct a tree survey to help the zoo confirm post construction compliance within the South Ravine construction zone. AC’s Certified Arborist and a staff scientist documented and tagged all trees greater than 6 inches DBH within the study area. Trees were evaluated for species, size, condition, and damage indicators. AC documented survey results in a formal report and provided additional recommendations based on site conditions.
WELCH ROAD WETLAND ASSESSMENT
AC was contracted by R&R Land Development to provide wetland assessment and outline State and Federal permitting and mitigation options for a 5 acre property located west of Gresham.
SHEPHERDS FLAT CENTRAL AND SHEPHERDS FLAT SOUTH WETLAND ASSESSMENT
GILLIAM & MORROW COUNTIES, OR
AC was contracted by South Hurlburt Wind LLC and Horseshoe Bend Wind LLC to provide wetland consulting services on approximately 150 acres associated with a new alternative energy wind park. Fieldwork was conducted by AC’s botanist and our Professional Wetland Scientist (PWS) using the Arid West Supplement with wetland, water, and all photo/sample plot locations recorded using a GeoXH handheld GPS unit. For this wetland assessment, AC’s AutoCAD/GIS specialist provided GPS and GIS services for preparation of project maps that included all sample plots, photo points, and feature locations.
ALBANY-EUGENE TRANSMISSION LINE REBUILD PROJECT - VEGETATION, FISH & WILDLIFE RESOURCE TECHNICAL REPORT, WETLAND ASSESSMENT, AND BIOLOGICAL ASSESSMENTS
LINN & LANE COUNTY, OR
AC was contracted by Parsons Brinkerhoff to provide the Bonneville Power Administration (BPA) with professional wetland, botanical, fisheries, and wildlife consulting services associated with this 32-mile transmission line rebuild project. As part of NEPA planning and permitting efforts, AC staff conducted initial fieldwork and prepared Vegetation, Fish and Wildlife Resource Technical Reports describing existing conditions and constraints along the 32 mile corridor.
AC staff also conducted fieldwork and prepared a wetland assessment documenting potential wetland features and constraints within danger tree removal areas and proposed access roads along the 32-mile project corridor.
Additionally, AC staff prepared a biological assessment for NMFS and USFWS to address potential impacts to ESA-listed fish species including UWR Chinook salmon, UWR steelhead, and Oregon chub. AC staff also prepared a biological assessment for ESA-listed plant species including Nelson’s checkermallow and Bradshaw's lomatium.
METRO ENVIRONMENTAL PERMITTING, CULVERT
REPLACEMENT, AND ROAD DECOMMISSIONING
MULTNOMAH & WASHINGTON COUNTIES, OR
AC was contracted by METRO to prepare applications, coordinate with all state, federal and local agencies, and obtain permits required to remove culverts and decommission abandoned roads at three locations and replace one culvert within Multnomah and Washington Counties. This streamlined the process, allowing METRO to use one company to provide both permitting and construction services.
The culvert removal and road decommissioning projects were accomplished during the 2009 summer in-water work window on North Fork Johnson Creek, Baker Creek, and a tributary to Chicken Creek. The culvert replacement project on a tributary to the Gilbert River also occurred in 2009. In addition to culvert removal and road decommissioning, AC efforts also included placement of LWD, salvage and replacement of existing native vegetation, and erosion/turbidity controls.
SADDLE BUTTE WIND PARK WETLAND/WATERS
DELINEATION AND REPORTING
GILLIAM & MORROW COUNTIES, OR
AC was contracted by Four Mile Canyon Wind LLC and Pilz and Company to provide wetland delineation services on over 15,000 acres proposed for a new alternative energy wind park. Project work was tailored to reflect the very large study area, and it included GIS pre-field site analysis using aerial photographs to locate suspect wetland areas and better focus field efforts. Delineation fieldwork was conducted by AC’s botanist and our Professional Wetland Scientist (PWS) using the Arid West Supplement with wetland, water, and all photo/sample plot locations recorded using a GeoXH handheld GPS unit. AC staff prepared the draft and final wetland delineation reports which included extensive photo documentation of site conditions. AC’s AutoCAD/GIS specialist provided GPS and GIS services for preparation of all agency required delineation and site maps. The report exceeded client expectations and was quickly concurred with by state regulatory agency staff.
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8316 N Lombard, #374
Portland, OR 97203
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