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LOWER DUWAMISH RIVER Habitat Restoration Program Site1 and 2 Status Report August 20, 2014 Elliott Bay Trustee Council

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Page 1: LOWER DUWAMISH RIVER Habitat Restoration Program · LOWER DUWAMISH RIVER Habitat Restoration Program Site1 and 2 Status Report ... Recall that in the design, ... such that the habitat

LOWER DUWAMISH RIVER Habitat Restoration Program

Site1 and 2 Status Report

August 20, 2014

Elliott Bay Trustee Council

Page 2: LOWER DUWAMISH RIVER Habitat Restoration Program · LOWER DUWAMISH RIVER Habitat Restoration Program Site1 and 2 Status Report ... Recall that in the design, ... such that the habitat

Site 1 Status

Presenter
Presentation Notes
This is the as-built drawing
Page 3: LOWER DUWAMISH RIVER Habitat Restoration Program · LOWER DUWAMISH RIVER Habitat Restoration Program Site1 and 2 Status Report ... Recall that in the design, ... such that the habitat

• Final Valuation Completed • Site Maintenance / Preliminary Monitoring • DNR Easement • 2014 Monitoring Report

Presenter
Presentation Notes
In this update, we’ll discuss four items:
Page 4: LOWER DUWAMISH RIVER Habitat Restoration Program · LOWER DUWAMISH RIVER Habitat Restoration Program Site1 and 2 Status Report ... Recall that in the design, ... such that the habitat

Site Maintenance / Preliminary Monitoring

• Ongoing maintenance of invasives • Vegetation Management • Shoreline erosion • “Berm” settling • Marsh vegetation establishment

Presenter
Presentation Notes
With regard to maintenance and monitoring, there are five items to discuss. Overall, we are happy with the site. We’ll start with four items that we know need adaptive management and end on a high note regarding the marsh vegetation.
Page 5: LOWER DUWAMISH RIVER Habitat Restoration Program · LOWER DUWAMISH RIVER Habitat Restoration Program Site1 and 2 Status Report ... Recall that in the design, ... such that the habitat

Maintenance of Invasives

Presenter
Presentation Notes
The site came with several infestations of Japanese knotweed and himalayan blackberry, as well as a host of other invasives. As of now, we have the blackberry under control through manual removal of the stems and roots. There remains one infestation of knotweed that we are managing actively. This is the infested area in May of 2014. In May of 2015, the plants occupied about 400% more area and they were 6 feet tall. These are approximately 4 feet tall.
Page 6: LOWER DUWAMISH RIVER Habitat Restoration Program · LOWER DUWAMISH RIVER Habitat Restoration Program Site1 and 2 Status Report ... Recall that in the design, ... such that the habitat

Maintenance of Invasives

Presenter
Presentation Notes
I excavated the stems and roots using my wetland shovel to get as deep as two feet. This is 300 pounds of knotweed that was bagged in thick plastic and hauled to the landfill.
Page 7: LOWER DUWAMISH RIVER Habitat Restoration Program · LOWER DUWAMISH RIVER Habitat Restoration Program Site1 and 2 Status Report ... Recall that in the design, ... such that the habitat

Maintenance of Invasives

Presenter
Presentation Notes
This is the completed site in May, at the end of the day.
Page 8: LOWER DUWAMISH RIVER Habitat Restoration Program · LOWER DUWAMISH RIVER Habitat Restoration Program Site1 and 2 Status Report ... Recall that in the design, ... such that the habitat

Maintenance of Invasives

Presenter
Presentation Notes
After three months, new shoots had emerged. These were treated with Roundup.
Page 9: LOWER DUWAMISH RIVER Habitat Restoration Program · LOWER DUWAMISH RIVER Habitat Restoration Program Site1 and 2 Status Report ... Recall that in the design, ... such that the habitat

• Second root excavation planned for next week • Includes removal of Rubus and other

undesireable invasives onsite and along fenceline with Port property

• Will be coordinated with EarthCorps maintenance effort this fall

• Expected to continue through next summer

Presenter
Presentation Notes
Read from slide
Page 10: LOWER DUWAMISH RIVER Habitat Restoration Program · LOWER DUWAMISH RIVER Habitat Restoration Program Site1 and 2 Status Report ... Recall that in the design, ... such that the habitat

Vegetation Management

Presenter
Presentation Notes
We noted and were also informed by Donna that portions of the site were looking really dry. We have been trying to work with the landscape contractor to improve the irrigation programming. Ultimately, I rolled up my sleeves and figured out the programming, zonation and timing. I started by finding that this zone was programmed, but the water to this zone was not turned on.
Page 11: LOWER DUWAMISH RIVER Habitat Restoration Program · LOWER DUWAMISH RIVER Habitat Restoration Program Site1 and 2 Status Report ... Recall that in the design, ... such that the habitat

Vegetation Management

Presenter
Presentation Notes
After turning on this zone and doubling the watering time throughout (40 min/day), we are seeing a great response.
Page 12: LOWER DUWAMISH RIVER Habitat Restoration Program · LOWER DUWAMISH RIVER Habitat Restoration Program Site1 and 2 Status Report ... Recall that in the design, ... such that the habitat

Vegetation Management

Presenter
Presentation Notes
In the early spring, we noted several trees that did not survive the winter. These were replaced in May and they are thriving.
Page 13: LOWER DUWAMISH RIVER Habitat Restoration Program · LOWER DUWAMISH RIVER Habitat Restoration Program Site1 and 2 Status Report ... Recall that in the design, ... such that the habitat

Vegetation Management

Presenter
Presentation Notes
Many of the willow and dogwood whips did not produce leaves – partly due to the irrigation issues. These are scheduled to be replaced this fall, when the weather is wetter and after some other repairs are made.
Page 14: LOWER DUWAMISH RIVER Habitat Restoration Program · LOWER DUWAMISH RIVER Habitat Restoration Program Site1 and 2 Status Report ... Recall that in the design, ... such that the habitat

Vegetation Management

Presenter
Presentation Notes
We have had some welcome natural recruitment, such as pearly everlasting and soft rush
Page 15: LOWER DUWAMISH RIVER Habitat Restoration Program · LOWER DUWAMISH RIVER Habitat Restoration Program Site1 and 2 Status Report ... Recall that in the design, ... such that the habitat

Vegetation Management

Presenter
Presentation Notes
Sitka alder and what I hope is Sweetflag or Yellowflag Iris.
Page 16: LOWER DUWAMISH RIVER Habitat Restoration Program · LOWER DUWAMISH RIVER Habitat Restoration Program Site1 and 2 Status Report ... Recall that in the design, ... such that the habitat

Vegetation Management

Presenter
Presentation Notes
Horsetail has also established in several places. While this can be a nuisance, it competes with other, less desirable invasives
Page 17: LOWER DUWAMISH RIVER Habitat Restoration Program · LOWER DUWAMISH RIVER Habitat Restoration Program Site1 and 2 Status Report ... Recall that in the design, ... such that the habitat

Shoreline Erosion

Presenter
Presentation Notes
Recall that in the design, the Trustees indicated that they did not like the use of rock for toe stabilization. We relied on the fact that the wingwall would protect this site. However, small boat traffic up river causes wakes that still make it to the banks in several places where the wake gets around the wingwall. This causes erosion of the toe during high tide.
Page 18: LOWER DUWAMISH RIVER Habitat Restoration Program · LOWER DUWAMISH RIVER Habitat Restoration Program Site1 and 2 Status Report ... Recall that in the design, ... such that the habitat

Shoreline Erosion

Presenter
Presentation Notes
In addition, our landscapers missed the mark when it came to the planting of salmonberry. They planted it well within the intertidal zone, so none of it survived.
Page 19: LOWER DUWAMISH RIVER Habitat Restoration Program · LOWER DUWAMISH RIVER Habitat Restoration Program Site1 and 2 Status Report ... Recall that in the design, ... such that the habitat

Shoreline Erosion

Presenter
Presentation Notes
Coupled with the failure of the whips to survive in places, the toe of the slope has eroded away. Our plan is to place topsoil in the area again, install whips and salmonberry at a higher elevation, and to place coarse wood and large wood along the toe of the slope to help mitigate the wakes. We’ll also place large wood on the berm to dissipate the wakes.
Page 20: LOWER DUWAMISH RIVER Habitat Restoration Program · LOWER DUWAMISH RIVER Habitat Restoration Program Site1 and 2 Status Report ... Recall that in the design, ... such that the habitat

Berm Settling

Presenter
Presentation Notes
The majority of the berm has retained the habitat mix
Page 21: LOWER DUWAMISH RIVER Habitat Restoration Program · LOWER DUWAMISH RIVER Habitat Restoration Program Site1 and 2 Status Report ... Recall that in the design, ... such that the habitat

Berm Settling

Presenter
Presentation Notes
However, the area affected by the small bat wakes has settled and eroded a bit, such that the habitat mix has settled and moved downslope. We plan to replace the eroded berm height with the soil used in the wetland, then apply at least two feet of habitat mix again now that the settling has stopped. We’ll also place large wood at the top of the berm to dissipate the wake action.
Page 22: LOWER DUWAMISH RIVER Habitat Restoration Program · LOWER DUWAMISH RIVER Habitat Restoration Program Site1 and 2 Status Report ... Recall that in the design, ... such that the habitat

Marsh Vegetation Establishment

Presenter
Presentation Notes
In our spring meeting with you, we told you that we were unsure of the success of the marsh plantings. We’re happy to say that the majority of the plugs have survived.
Page 23: LOWER DUWAMISH RIVER Habitat Restoration Program · LOWER DUWAMISH RIVER Habitat Restoration Program Site1 and 2 Status Report ... Recall that in the design, ... such that the habitat

Marsh Vegetation Establishment

Presenter
Presentation Notes
You can see in these photos, that the sedge and rush type species have not only survived, but established new growth.
Page 24: LOWER DUWAMISH RIVER Habitat Restoration Program · LOWER DUWAMISH RIVER Habitat Restoration Program Site1 and 2 Status Report ... Recall that in the design, ... such that the habitat

Marsh Vegetation Establishment

Presenter
Presentation Notes
Also, the salicornia that was planted came from California, so we were expecting no survival. While it is not as densely established as the sedges and rushes, it seems to be taking hold throughout the site and we hope it continues to fluorish.
Page 25: LOWER DUWAMISH RIVER Habitat Restoration Program · LOWER DUWAMISH RIVER Habitat Restoration Program Site1 and 2 Status Report ... Recall that in the design, ... such that the habitat

Other

Presenter
Presentation Notes
Aside from that, the only other O&M related discussion revolves around debris that enters the site from the river. Some coarse woody debris has settled on the site, including some man-made wood, which will be removed by Earth Corps. Also, in my visit last week, I found these panels of 3-inch styrofoam…they are now in the back of my truck headed to the dump with the knotweed next week.
Page 26: LOWER DUWAMISH RIVER Habitat Restoration Program · LOWER DUWAMISH RIVER Habitat Restoration Program Site1 and 2 Status Report ... Recall that in the design, ... such that the habitat

Other

Presenter
Presentation Notes
I have seen geese and ducks during high tide. I found these raccoon prints in the site during low tide earlier this week. Our monitoring later this year will include snorkel surveys for fish and other aquatic species.
Page 27: LOWER DUWAMISH RIVER Habitat Restoration Program · LOWER DUWAMISH RIVER Habitat Restoration Program Site1 and 2 Status Report ... Recall that in the design, ... such that the habitat

Other

• EarthCorps sheduled to visit site for year-1 maintenance in October (litter, goose exclusion, minor improvements) • Grette scheduled to conduct year-1

monitoring in September • Bluefield to implement maintenance after

Grette report is published (for record to show the action items and completion)

• inue through next summer

Presenter
Presentation Notes
Read from slide
Page 28: LOWER DUWAMISH RIVER Habitat Restoration Program · LOWER DUWAMISH RIVER Habitat Restoration Program Site1 and 2 Status Report ... Recall that in the design, ... such that the habitat

DNR Easement

Presenter
Presentation Notes
As you recall, the projects along the Duwamish include DNR lands. The red box here shows the area of Site 1 that is on DNR land.
Page 29: LOWER DUWAMISH RIVER Habitat Restoration Program · LOWER DUWAMISH RIVER Habitat Restoration Program Site1 and 2 Status Report ... Recall that in the design, ... such that the habitat

DNR Easement

• Initially thought to be SDOT land • Worked with SDOT and DNR to revise Lease and

initial DNR Easement • First-ever DNR long-term easement with private entity • Bluefield signed in May, DNR in August • To be filed with King Co. Auditor next week • inue through next summer

Presenter
Presentation Notes
Read from slide
Page 30: LOWER DUWAMISH RIVER Habitat Restoration Program · LOWER DUWAMISH RIVER Habitat Restoration Program Site1 and 2 Status Report ... Recall that in the design, ... such that the habitat

Site 2 Status

Presenter
Presentation Notes
That is all we have for Site 1. Now onto Site 2. This is the latest valuation drawing, prepared two weeks ago.
Page 31: LOWER DUWAMISH RIVER Habitat Restoration Program · LOWER DUWAMISH RIVER Habitat Restoration Program Site1 and 2 Status Report ... Recall that in the design, ... such that the habitat

Programmatic Critical Path Items:

• Financing for Design and Permitting

• Commitment for Financing

• Sale of 30 Credits

• Permit Approvals in Place (under way)

X

X

Presenter
Presentation Notes
In our spring meeting, we discussed the critical path to construction. Since that time, we have initiated feasibility work, design and permitting. We are still anticipating a 30 credit sale before we can move to construction.
Page 32: LOWER DUWAMISH RIVER Habitat Restoration Program · LOWER DUWAMISH RIVER Habitat Restoration Program Site1 and 2 Status Report ... Recall that in the design, ... such that the habitat

30% SIP Design (submitted to SDOT)

1.) Port Parcel Add Marsh, Mudflat and Channel Reverse Channel Entrance Purchase and Sale Agreement in the works Port condemnation expected in September 2.) Railroad Crossing Eliminate Existing SDOT Access

Page 33: LOWER DUWAMISH RIVER Habitat Restoration Program · LOWER DUWAMISH RIVER Habitat Restoration Program Site1 and 2 Status Report ... Recall that in the design, ... such that the habitat
Presenter
Presentation Notes
This is the habitat plan taken from the valuation exercise and the basis for the 30% submittal to SDOT.
Page 34: LOWER DUWAMISH RIVER Habitat Restoration Program · LOWER DUWAMISH RIVER Habitat Restoration Program Site1 and 2 Status Report ... Recall that in the design, ... such that the habitat

Port Parcel

Presenter
Presentation Notes
Recall that the port parcel is approximately 0.25 acre of intertidal area and upland
Page 35: LOWER DUWAMISH RIVER Habitat Restoration Program · LOWER DUWAMISH RIVER Habitat Restoration Program Site1 and 2 Status Report ... Recall that in the design, ... such that the habitat

Port Parcel

Presenter
Presentation Notes
Including a retaining wall between the intertidal area and the upland.
Page 36: LOWER DUWAMISH RIVER Habitat Restoration Program · LOWER DUWAMISH RIVER Habitat Restoration Program Site1 and 2 Status Report ... Recall that in the design, ... such that the habitat

Railroad Crossing

Presenter
Presentation Notes
Likewise, the 30% includes a proposal to include a railroad crossing to help us eliminate the existing access road and push the habitat as far up as possible.
Page 37: LOWER DUWAMISH RIVER Habitat Restoration Program · LOWER DUWAMISH RIVER Habitat Restoration Program Site1 and 2 Status Report ... Recall that in the design, ... such that the habitat

Railroad Crossing

Presenter
Presentation Notes
The crossing would take place here, going directly toward the swingbridge.
Page 38: LOWER DUWAMISH RIVER Habitat Restoration Program · LOWER DUWAMISH RIVER Habitat Restoration Program Site1 and 2 Status Report ... Recall that in the design, ... such that the habitat

Technical Critical Path Items: • RR Crossing is Economically Feasible

– Sufficient Valuation (in process) – Permission from Railroad to allow crossing

• Port Parcel is Economically Feasible – Sufficient Valuation (in process) – Agreement on Purchase (in process) – Acquisition does not trigger major cleanup action

by EPA (Phase 1 ESA completed)

Presenter
Presentation Notes
In our spring meeting, we discussed the important technical items that we were assessing. The red indicates the status of these. Read from slide
Page 39: LOWER DUWAMISH RIVER Habitat Restoration Program · LOWER DUWAMISH RIVER Habitat Restoration Program Site1 and 2 Status Report ... Recall that in the design, ... such that the habitat

Valuation

Presenter
Presentation Notes
We have been working closely with Michael to get our GIS files organized in a way that allows him to efficiently analyze the design relative to the valuation guidelines that you are using.
Page 40: LOWER DUWAMISH RIVER Habitat Restoration Program · LOWER DUWAMISH RIVER Habitat Restoration Program Site1 and 2 Status Report ... Recall that in the design, ... such that the habitat

Valuation

Presenter
Presentation Notes
We have landed on a 2.35 acre project area, with about 1.8 acres of haitat (about twice the size of site 1)
Page 41: LOWER DUWAMISH RIVER Habitat Restoration Program · LOWER DUWAMISH RIVER Habitat Restoration Program Site1 and 2 Status Report ... Recall that in the design, ... such that the habitat

Valuation – Creosote Walls/Pilings

6 pilings and wall

Presenter
Presentation Notes
Now that the mapping is done, we have accounted for the many creosote pilings that are in the intertidal zone. Here, the port parcel has a 56 foot wall that includes 6 piings
Page 42: LOWER DUWAMISH RIVER Habitat Restoration Program · LOWER DUWAMISH RIVER Habitat Restoration Program Site1 and 2 Status Report ... Recall that in the design, ... such that the habitat

Valuation – Creosote Walls/Pilings

5 pilings and wall

Presenter
Presentation Notes
The SDOT (DNR) property has a 46 foot wall with 5 pilings
Page 43: LOWER DUWAMISH RIVER Habitat Restoration Program · LOWER DUWAMISH RIVER Habitat Restoration Program Site1 and 2 Status Report ... Recall that in the design, ... such that the habitat

Valuation – Creosote Walls/Pilings

7 dolphins with 7 pilings each 3 with Navigation lights (replace 2 with concrete pilings?)

Presenter
Presentation Notes
In the waterway, there are 7 dolphins with 7 pilings each. Three of them have NAV lights (two of which are working). We anticipate replaceing the two working piles with concrete piles an working NAV lights that are solar powered, requiring no wiring or cables.
Page 44: LOWER DUWAMISH RIVER Habitat Restoration Program · LOWER DUWAMISH RIVER Habitat Restoration Program Site1 and 2 Status Report ... Recall that in the design, ... such that the habitat

Valuation – Creosote Walls/Pilings

16 Other Pilings

Presenter
Presentation Notes
There are 16 other pilings that are not associated with the walls or dolphins.
Page 45: LOWER DUWAMISH RIVER Habitat Restoration Program · LOWER DUWAMISH RIVER Habitat Restoration Program Site1 and 2 Status Report ... Recall that in the design, ... such that the habitat

Valuation – Creosote Walls/Pilings

Piling Count: Walls 11 Dolphins 49 Other 16 Total 76

How to consider 56 and 46 foot wall length?

Presenter
Presentation Notes
In total, there are 76 pilings in the project area, along with 106 feet of retaining wall that is made of creosote treated poles. We’ll be working with John, Rebecca and Michael on figuring out how to value the removal of these. We’ll also have to work with DNR to make sure that none of the existing leases are affected.
Page 46: LOWER DUWAMISH RIVER Habitat Restoration Program · LOWER DUWAMISH RIVER Habitat Restoration Program Site1 and 2 Status Report ... Recall that in the design, ... such that the habitat

Schedule

• Submitted 30% to SDOT in June • Design Guidance meeting on October 18!

• JARPA and SEPA come after 60% • Estimated Spring 2015

• Permits in place by Fall 2015 • Construct during 2015 – 2016 fish window • Pending sale of 30 credits

Presenter
Presentation Notes
Read from slide
Page 47: LOWER DUWAMISH RIVER Habitat Restoration Program · LOWER DUWAMISH RIVER Habitat Restoration Program Site1 and 2 Status Report ... Recall that in the design, ... such that the habitat

Thank You!