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Home My WebLink About3184; CANNON ROAD WEST; MITIGATION PROJECT PROGRESS REPORT; 2001-12-22FROM :NATIVE LANDSCAPE INC FA< NO. :75e7358725 Jan. 17 202 e3:41PM P3 Fred T. Sprout Botanical Consultant Post Office Box 848 Ramona, California 92065 Phone and Fax (760) 789-8136 Engineering Department City of Carlsbad Attn: Sherri Howard December 22, 2001 RE Progress Report No. 28 for Cannon Road Extension, Wetland Mitigation Project This report covers the months of November and December of 2001 at sites A, Extra A, C and D. During this period the contractor, Native Landscape Inc. conducted extensive maintenance. Mitigation Site _Maintenance_and Monitoring Site A: Macario Canyon Riparian tree species have begun turning yellow and some such as Cottonwood are already fully deciduous. Recent rains have thoroughly moistened the soil and initiated weed growth. Bristly ox-tongue (Picrus echiodes), in particular already has large - leaf basal rosettes no Pampas grass (Cortadiera selloana) was observed in the planted areas, however the seed dispersal of broom Baccharis (Baccheris sarothondes) resembles the bloom spikes of Pampas grass. Site A: Additional 0.25 Acre Area Recent rains have thoroughly moistened the soil and initiated weed growth. Bristly ox-tongue (Picrus echiodes), in particular already has large - leaf basal rosettes this weed could be most effectively controlled at this time with an herbicide such as roundup. Black mustard (Brassica nigra) and annual grass spp. Have also germinated along disturbed areas outside of the planted area. No pampas grass was observed on this site. Site C: El Camino Real Recent rains have flooded much of the Salt Marsh planting from the overflow of the adjacent creek. Freshwater Marsh continues to encroach the site with Cattail (Typha dominguensis) expanding its area of dominance. The Riparian area currently has a creek flowing through much of the site, it has created.some stream scour, however, no damage has occurred to the plantings. No significant weed problems were observed at this time some Castor bean (Picinus communis) was sited and Should be removed, Site D: Kelly Drive Recent rains have overflowed from the adjacent flood control channel across the planted area creating a small amount of stream scour to the substrate but there was no damage to the plantings. Adequate soil moisture would allow successful replanting here, some of the more facultative wetland shrub or tree species such as Sandbar willow (Salix exlgua) or Mulefat (accharis sal!cifol,a), Large planting holes with good soil amendments would be necessary for success of such plantings. No significant weed problems persist at this time and trails such as occur in the riparian area are precluded by the dominance of Spiny Rush (Juncus acufis). FROM :NATJLJE LANDSCAPE INC FAX NO. :7607358725 Jan. 17 2002 83:41PM P2 Fred T. Sproul Botanical Consultant Post Office Box 848 Ramona, California 92065 Phone and Fax (760) 789-8136 Engineering Department City of Carlsbad Attn: Sherri Howard October 17, 2001 RE: Progress Report No, 27 for Cannon Road Extension, Wetland Mitigation Project This report covers the months of September and October of 2001 at sites A, Extra A, C and D. During this period the contractor, Native Landscape Inc. conducted extensive maintenance. MitiiatioriSite Maintenance and Monitoring Site A: Macaria Canypn Riparian tree plantings are continuing to grow well except near the center of the site where some freshwater encroachment has begun to type convert a small area of the site more toward freshwater marsh composed of Cattails (Typha domingensis). This appears to be a natural event promoted by gradual increase in freshwater run - off from development along Faraday Avenue. OveraiF this is not likely to threaten the riparian habitat. Weed problems continue to be mostly Pampas grass. Tamarisk tree and Bristly ox-tongue, which have all been recently controlled by Native Landscapes maintenance crew. Site A: Additional 0.25 Acre Area As it was observed in September during the annual monitoring, the shrub and tree species have responded very well to the additional late summer watering with exhibiting new leaves and the initiation of stem elongation. This should be continued until winter rains have commenced, No significant weed problems are currently in need of attention. Site C: El Camino Real Salt marsh plantings have achieved full ground coverage on most of the site except for the Northern Area and where freshwater encroachment occurs. Marsh plant species continue to expand their coverage. No significant weed problemswere observed at this time. The site continues to be used as a pathway and refuse area by local migrant field workers. Site 0: Kelly Drive There is no significant change in the Status of the riparian tree plantings. There continues to be an open un-vegetated area that is gradually being enclosed by riparian trees on both sides. Salt marsh plantings continue to fulfill the specified success criteria. No significant weed problems persist at this time and trails such as occur in the riparian area are precluded by the dominance of Spiny Rush (Juncus acutis). FROM :NATILE LANDSCAPE INC FAX NO. :7507358725 Jan. 17 2802 03:41PM P4 Fred T. Sproul Botanical Consultant Post Office Box 848 Ramona, California 92065 Phone and Fax (760) 789-8136 Engineering Department July 24, 2001 City of Carlsbad R: Progress Report No. 26 for Cannon Road Extension. Wetland Mitigation Project. This report covers the month of June and July of2001at sites A, C and D. During this period extensive weed control and supplemental watering was performed by the contractor, Native Landscape Inc. The following observations were made on 23 July. Riparian plant species in the most recently planted area [Mule-fat (Bccharis salicifolia) and Sandbar Willow (Salix xign)J were watered and were beginning to respond with new growth over most of the site. One weed species which needed attention was Bristly Ox-tongue (Picris ethi.adts) which was beginning to invade the newly planted area. A buffer area adjacent to this planting was mowed. Site C' The riparian vegetation at the site is very vigorous, having completely closed the canopy and preventing any significant weed problems. Flooding which had been previously reported continues the affect the salt marsh by encouraging the invasion of freshwater species such as Nutsedge (Seipiis rohustus) and Cattail çrypha iomingensis). There remains no need for irrigation of this site, though if the restored sal.tmarsh species continue to diminish some re-routing of the encroaching freshwater may be necessary. Extensive stands of Bristly Ox Tongue (Picris echindes) was removed at this site before significant seed had matured and dispersed. ,Sitefl Sandbar Willow (Salix exigjia) are growing well and spreading, however, without any supplemental irrigation the rate of spread has diminished. It is probable that it still will be able to eventually cover the site effectively in the succeeding rain season. Problematic weeds are: Bristly Ox Tongue (Picris cchindes), Brass buttons (Qitiila coronopifolia), Sweet Yellow Clover (Mel Hot india' and White Sweet Clover (Mel ilotus alba) were recently removed - Rcspectflil1y, FROM FAX NO. :7607358725 Jul. 05 2001 04:26PM P2 rom: ReceIved: 7/5/01 at 1:38 PM FAX NO. Jul. 05 2001 01:49pM P1 Fred T. Sprout Botanicil Consultant Post Office Box 84$ Ramona, California 92065 Phone and Fax (760) 7894136 Engineering Department City of Carlsbad June7, 2001 Re Progress Report No. 25 for Cannon Road Extension, Wetland Mitigation Project This rcort covers the months of)and April of 200 1st sites A, C and D. During this period extensive maintenance was conducted by the contractor, Native Landscape Inc., prior to the Least Bell's Vuco (LBV) nesting season. 'r11Tr;1 t ThPT Riparian plant species continue to dominate the site with rapid growth in both height and coverage. Understory vegetation, especially Spiny Rush (Jms acutis) covers most of the ground surface. Recently installed Freniont Cottonwood (jlia frenumtii) are thriving. Of the two weed species which needed attention: Pampas Grass (Qpi1adera scfloana) and Salt Cedar amadx sp.). Salt Cedar was cut and berbicided on the last pro- LBV closure maintenance. The site looks very dry especially in the narrow area that was most recently planted. Portions of these areas have begun to loose bees, mostly Sandbar Willow (Salix cigua). Irrigation of this nOwest planting Will be important to sustain growth and prevent fwthar beset Cow bird trapping is being conducted regularly by Vaninus Biological Services. The riparian vegetation at the site is very vigorous, having completely closed the canopy and preventing any significant weed problems. Some flooding has occurred on the site and flood scour and siltation has occurred. As a result parts of the salt marsh restoration area are now inundated with freshwater and there has begm an invasion of native freshwater marsh plant species over part of the pwrted area with: Cattail CFha domingensis, Nutgrass Sedge (Scirpus xthtus. There is obviously no need for irrigation of this site. The salt marsh restoration at this site has also successfully covered the entire ground surface. There are still problems with Bristly Ox Tongue (Picris 1i) at this site. SiteJ) Sandbar Willow (Sathç exigm) are growing well and spreading without any supplemental liTigation. FROM FAX NO. :7607358725 Jul. 05 2001 04:26PM P3 01 •...Iu rui FROM FAX NO. Jul. 05 2221 01:49PM P2 Problematic wteds are: Bristly Ox Tongue (-Pjcrig echiodcs) is beginning to spread lwre. Brass buttons (Cotula qoronopifolia) is abundant but not aprent1y any significant competition. Sweat Yellow Clover (Melilotus jg) and White Sweet Clover (Me1I1SA) are still minor problematic ber. Fred T. Sproul I OM : FAX NO. May. 29 21 06:39AM P2 Fred T. Sproul P FCVED Botanical Consultant Post Office Box 848 -1~141 2 7 201)1 Ramona, California 92065 Phone and Fax (760) 789-8136 ENGINEERING Engineering Department May 27,200'IEPARTMENT City of Carlsbad Re: Progress Report No. 24 for Cannon Road Extension, Wetland Mitigation Project. This report covers the months of March and April of2001at sites A, C and D. During this period extensive maintenance was conducted by the contractor, Native Landscape Inc., pnor to the Least Bell's Vireo (LBV) nesting season Mitigation Site Maintenance and Monitoring Tree species were dormant during most of this period, though understozy vegetation was actively growing especially as a result of consistent wet cool weather during the late winter of 2001. Site A Riparian plant species continue to dominate the site with rapid growth in both height and coverage, lJnderstory vegetation successfully covers most of the ground surface. Western Sycamore, (Jatanus racernosa) continues to have poor survival here, it is apparently not well suited to this site and replacement is not recommended. Two weed species continue to need attention: Pampas Grass Qortadzra selloana) and Salt Cedar (Taman sp). The later species was apparently overlooked during previous maintenance of the site and will have to be aggressively controlled as soon as the site is accessible after the LBV nesting season closure. Three male LBV's had been sighted on this site as of 4/24/01 by the avian monitoring contractor, Varanus Biological, however, no known nests were reported as of that date. iteC The riparian vegetation at the site is very vigorous, having completely closed the canopy and preventing any significant weed problems. Some flooding has occurred on the site and flood scour and siltation has occurred which may become a weed vector, The valve box damage that has occurred due to water pressure or flooding has not presented any further problems. There is no apparent need for irrigation of this site at present. The salt marsh restoration at this site has also successfully covered the entire ground surface. There, are not any significant weed problems at present. Site D Restoration for damage due to the automobile that accidentally drove into the site has completely covered the damaged restoration area. 'Coast Goldenbush (Isocorna menziesii), willows (Salix spp.) and Bullrush (Seim american) have completely FX NO. : May. 29 21 E4AM P3 grown over this area. One weed species, Sweet Yellow Clover (Melilotus indica) is problematic here. This species typically dwindles as native cover increases, so it would be important to insure that new plantings are not overwhelmed by this plant. There is, however, no need for extensive eradication efforts especially with an herbicide at this time. Portions of this site are dry already and may need some additional watering this year-Any failures of recent plantings should consider using to Sandbar Willow (Salix exig) which suckers very well and tolerates dry sites. I-