Beneficial use of dredge materials
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A variety projects in the Eastern United States have used dredge materials to build or elevate marsh plain. This type of restoration work has a limited record in Puget Sound (are there any examples out there?). Eelgrass has been planted on fill material in a couple places in Puget Sound, per Ron Thom, but beneficial use appears to be rare in Puget Sound tidal habitats.
Literature[edit]
The following articles were suggested as a useful starting place for analysis of beneficial reuse of dredge materials.
- Streever, W. J. 2000. Spartina alterniflora marshes on dredged material: a critical review of the ongoing debate over success. Wetl. Ecol. Mgmt. 8:295-316.
- Shafer, D. J. & W. J. Streever, 2000. A comparison of 28 natural and dredged material salt marshes in Texas with an emphasis on geomorphological variables. Wetlands Ecology and Management 8: 353–366.
- Edwards, K. R. & C. E. Proffitt, 2003. Comparison of wetland structural characteristics between created and natural salt marshes in Southwest Louisiana, USA. Wetlands 23: 344–356.
- Weinstein, M.P., Weishar, L.L., 2002. Beneficial use of dredged material to enhance the restoration trajectories of formerly diked lands. Ecol. Eng. 19, 187–201.
- Philip WIlliams & Associates and Phyllis M. Faber. 2004. Design guidelines for tidal wetland restoration in San Francisco Bay. The Bay Institute. (available for download at http://www.wrmp.org/design/)
- Winfield, T. P., J. Florsheim, and P. Williams. 1997. Creating tidal marshes on dredged materials: design features and biological implications. In K. B. Macdonald and F. Weinmann (eds.), Wetland and Riparian Restoration: Taking a Broader View. EPA 910-R-97-007.
- Armitage, A. R., C-L. Ho, E. N. Madrid, M. T. Bell and A. Quigg. 2014. The influence of habitat construction technique on the ecological characteristics of a restored brackish marsh. Ecol. Engineer. 62:33-42.
- Costa-Pierce, B. A., and M. P. Weinstein. 2002. Use of dredged materials for coastal restoration. Ecol. Engineer. 19:181-186.
- Functional assessment of differential sediment slurry applications in a deteriorating brackish marsh. SA Graham, IA Mendelssohn - Ecological Engineering, 2013 – Elsevier
- Camille L. Stagg and Irving A. Mendelssohn 2011. Controls on resilience and stability in a sediment-subsidized salt marsh. Ecological Applications 21:1731–1744. http://dx.doi.org/10.1890/09-2128.1
- CL Stagg, IA Mendelssohn. 2010. Restoring ecological function to a submerged salt marsh. - Restoration Ecology, Wiley Online Library
Examples[edit]
San Francisco Bay
- Hamilton Wetlands: http://hamiltonwetlands.scc.ca.gov/ Old military air base restored to marsh using dredged sediment to raise the subsided site prior to dike breaching.
- Montezuma Wetlands Restoration Project: http://ceres.ca.gov/wetlands/projects/montezuma.html Restoring about 1,800 acres of tidal wetland by using dredged sediment to bring diked/subsided area up to natural elevation before breaching dikes.
- Sonoma Baylands: http://www.bay.org/bay-restoration/restoration-projects/sonoma-baylands Restored ~360 acres tidal wetland by using dredged sediment to fill a diked/subsided area before breaching dikes.
Chesapeake Bay
- Poplar Island – using dredge material to create 600 acres new marsh to replace marsh that had eroded away. http://www.chesapeakequarterly.net/V12N3/main1/
- Hart Miller Island – created ~180 acres wetland/mudflat from dredge material. http://www.menv.com/pages/outreach/hmi.html
Gulf of Mexico
- A detailed summary of 11 habitat restoration projects that used dredge material, including lessons learned and project references. Some, but not all involve wetland enhancement. http://www.gulfmex.org/1168/gulf-regional-sediment-management-master-plan-case-study-compilation/
Other Wiki Resources[edit]
A Stillaguamish Delta Dredged Sediment Re-Use project is being considered.