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CC - Item 4E - Replacement of Street Trees on Olney Street t4w eO®nor staf ,e o pr TO: FRANK G. TRIPEPI, CITY MANAGER FROM: MICHAEL D. BURBANK, DIRECTOR OF PARKS AND RECREATION DATE: SEPTEMBER 17, 1997 RE: REPLACEMENT OF STREET TREES ON OLNEY STREET - BROOKLINE TO RIO HONDO AVENUE Recently, a large Maple tree limb fell from a City parkway tree at 872D Olney Street. The Maples on the street are over forty (40) years old. This type of tree has inherent problems in that they have a tendency to become structurally unsound as they get older and are susceptible to infestations and rot. Inspection of the tree and limb showed that both had severe rot and the tree was subsequently removed. There are 46 Maples between Rio Hondo and Brookline. Because of the inherent problems with this type of tree and considering the number of Maples; staff utilized an Arborist (Sims Tree Specialist) to inspect all the Maples on Olney. Attached is a schematic drawing (Exhibit I) which illustrates the results of the Arborist's report. The report recommends that we remove seventeen (17) trees. It also recommends that we could retain, with reservation, thirteen (13) more trees, but they should be removed over the next 2-5 years. As can be seen from the schematic, sixteen (16) Maple trees would be left after the others were removed. These trees are scattered up and down Olney. They also present certain problems since the remedies suggested by the Arborist are outside the City's control, i.e, repeated injury due to mowing, edging, watering, etc. Therefore, they should be considered for removal at the same time the others are. One other problem encountered on Olney is that there are sixteen (16) locations that need to have the curb/gutters removed because the Maples have grown over the top of the curb. Following removal, it ,will be necessary to replace the curb/gutter in the affected areas. COUNCIL. AGENDA SEP 231997 ITEM No. 7 Finally, there are thirteen (13) locations that do not have parkway trees and six (6) locations that have various types of small trees. Based on the above, the proposed concept is to remove all the Maples and the six miscellaneous trees and replant the entire block with a tree that is more desirable. To that end, it is proposed that Willdan and Associates be utilized to prepare Bid Documents for the removal of the trees on Olney, the removal and the reconstruction of the curbs/gutters at the affected locations and the replanting of the entire block with twenty-four inch (24") box Camphor trees (see attached) . They indicate that their fee will not exceed $ 5, 000. 00 and they estimate that the project should cost $ 87, 000. 00. Since the Scope of the Project will effect all of the residents on the street, staff will conduct a meeting(s) to inform the residents of the project and respond to their concerns and questions. RECOMMENDATION: It is recommended that the City Council direct staff to conduct neighborhood meetings with all affected residents, prepare bid documents and solicit bids for removal and replacement of the trees and appropriate $ 92 , 000. 00 from the City' s unappropriated reserves. 07-N-B5S:sb(62-63) attachments - Exhibit I - Camphor Tree Pictures - Arborist's Report RIO HONDO 3510 3522 EXHIBIT I ' 9418 "I a 9419 9424 9425 ' - 9428 LASHBROOK 9434 9435 9438 9444 y 4 e 9441 e 9447 9450 '4Q 9454 "I e 9453 iC 9457 - 9460 . - • VANE 9464 * < I 9503 • 9502 w 4 I _.I 9509 9510 e4 O -1 9513 9514 4 1 D 'i 9519 9520 7 9523 9524 a mMARYBETH 9530 e 9533 I. 9534 9539 9540 @ 9545 9546 9551 955D 74- < —i 9555 9556 a • ELLIS LANE 9560 w 9603 9602 9608 * < D ) 9609 9612 9.4 4 9613 9618 *L 'I 9619 9622 * 9623 9628 9629 19632 * 9633 19638 "I Q 9639 • TEMPLE CITY BLVD. 9702 * .4 9703 19708 * 14 .4 9709 * REMOVE---17 9714 e4 '. .9715 , e RETAIN/RESERVATION---13_' 9720 * 9721 T RETAIN--16 9726 * 'i 9727 D CURB REMOVALS---15 BROOKLINE_ 9/ 10/97 ., ... . .• . - C •.*--.‘ :• ' 4 • . . el s • . . . . ir 111Itv . .. • i . . . . , ,• , - . • . % O. . • - • - 441 . i , I IL _ .. i_r„.„„, .. ,- ! '-•--, ...01--4,-. ! - --- - 7,2 - ,s.-- -, .-_ • • ,_ , . ,r • 5120137 at 11:10 PM Syncro Connect-Home (909)909-737-9159 Paoe 2 Evaluation of Acer sacc/raruuun for the C:ity of Rosemead Tracer Enunerich Takeuchi Certified .Arborist WC2301 Agriculhunl Advisor#AA ] 1 09 Qualified Applicator=33933 Sims Tree Specialist 5535 Dodd Street Mira Loma. CA 91752 Copyright Sims Tree Specialist O 1997 1 6120197 at 1110 PM Syncro Connect-Home (909)909-737-9169 Pane 3 Sims Tree Specialist Tracey Enlmerick Takeuchi City of Rosemead 8/20:97 11:09:18 PM 11:09 PM Acer Saccharin :tin Introduction: • I. About this Report A. Scope of Work 1. Method of Evaluation 2. Limitation of Evaluation B. Summary L General Findinns 2. Recommendations II. Individual Fundings of Each Specimen 111. Conclusion 6120/97 at 1110 PM Syncro Connect- Home (909)909-737-9'89 Page Sims Tree Specialist Tracey Enmmer ick Takeuchi City of Rosemead 8/20'97 11:09:18 PM 11:09 PM Tracey Enunerick Takeuchi Sims Tree Specialist City of Rosemead August 20, 1997 Evaluation of Acer saccharhtum for the City of Rosemead About this Report: Scope of Work This report is generated based on limited visual evaluation of the requested.-icer soccharma , located on Ohiey Street and Rio Hondo Street in the City of Rosemead. This report was not generated as an hazard evaluation of these trees and is not to he construed as such. This evaluation was accomplished at ground level. no lift was employed. no root crowns excavation was accomplished- increment boring was not performed. and as such this information is to be considered a basic evaluation of the condition of these trees. This report is of value h1 that the evaluation was accomplished by the efforts of a trained biologist and Certified Arborist. However_ since no detailed examinations of the root crown through excavation, heartwood through increment haring, ar canopy with aerial lift were accomplished the limitations of this report are that the basic health only is addressed. Should a more detailed report be necessary Ibi the purpose of The City of Rosemead, thus can be acconr phi shed resulting in greater detail for assurance of safety considerations. This report does not constitute a hazard tree abatement evaluation. Summar A. succ/1w-!qum is a weak reooded tree that grows rapidly attaining heights or SO feet- It is among the most subject of all trees to failure from internal decac. Ifs propensih Jru failure results in a tree that can become unsafe under urban conditions. Due 10 this inherent characteristic it requires that this species be pruned to exactim, standards avoiding conditions that contrihute to intenlaI decay and heavy end weight of Inter:II branches. 8/20/97 at '.1.11 PM Syncro Connect-Home (909)909-737-9189 Page 5 Sins Tree Specialist Tracey Enunerick Takeuchi Cite of Rosemead 8/20/97 11:09:18 PM 11:09 PM Conditions that contribute to internal decay include injury to the ellerior of the tree sucli as: string edging type equipment(weed wacker): lawn mower strikes to the base of the tree causing repetitive injury to the buttress roots and other abrasions to the bark: pruning inside of the branch bark ridge and branch bark collar: tipping and flush curling of limbs. These practices either injure the bark in such a way as to preclude sealing of the )issue. or admit moisture to such a degree, as in the case of the buttress roots, that sealing becomes improbable and internal decay results. In addition. trimming to produce a pollarded effect or lion's tailing_ oflinths results in increased internal decay due to improper sealing of cut ends. as well as end heavy growth unable to support the weight of the limb. End heavy growth frequently results in limb failure at the attachment point to the stain stem. Recommendation Itis strongly recommended that a majohly of these trees be rennoved due to internal decay and structural unsoundness. While some trees have been recommended for retention_ it is with the most severe reservation. All of these trees. without exception_ should be targeted for removal over the course of the nest two to five years_ with fire ears being extremely generous given the present condition of these trees. II is strongh recommended that those trees retained he under the evaluation of a Certified AhorISt on a Si-annual basis. Changes in these trees can occur rapidly and these trees must be monitored for undi cations of increased levels of decay and structural unsoundness. Individual Findings Olney Street 9800 Block fljfa�r a Tree 41-9638 Ohney T 1 tzi o�e. Tree has severe internal decay with Sulfur fungus decay in various locations throughout upper scafbld branches. Major conk on N leader. 6/20/97 at 11.12 PM Syncro Connect-Home (909)909-737-9189 Page: 6 Sims Tree Specialist Tracey Emmerick Takeuchi City of Rosemead 8/20/97 11:09:18 PM 11:09 PM Tree P2- 9639 Olney. y1.4)4i}.. itln reservation Manage height. Topped at some point in history resulting in continuing need to manage height. Small decay area present. Tree #3- 9633 Olneya Possible hazard. Buttress roots have failed resulting in major instability. Viz9 Tree 44- 36 1Ohney. Vila Retain with reservation] Decay present in buttress roots on West side. Conks present in scaffold branches (few). West-South West decay with possible limb failure. Recommend removal within one to two years. Tie p=- 9623 Olney e. 'q`,-_ -Brown cubical rot present to large degree. Contagious pathogenic fungi oflignified wood. Extreme structural weakness likely. Tree 46-9618 Olney mto 'Severe internal decay of heartwood at base of tree on S/E side. May involve 5+ buttress roots and extends into main stem >8"'. Tree #7-9608 Olnev.S)Severe decay present. Honey bee colony that esiends into one- and perhaps twao, main leaders- From exterior discoloration the colony nay involve as much as 6- of interior heartwood area. It is strongly reconunended that the ,agriculture Department be contacted to sample the bees for aggressiveness prior to attempting 10 extern date the colony. Tree 48-9609 Ouney, lajor decay, present in limb overhanging slruclure. Failure likely in direction of structure due to prevailing wind and location of buttress roof decay, 8120197 at 11)12 PM Syncro Connect Home (909)909-7379189 Page: 7 Sims Tree Specialist Tracey Envuerick Takeuchi City of Rosemead 8/20197 11:09:18 PM 11:09 PM Tree 49- 9545 Olneyu. Remove dead limb. Decay with conks present. Buttress roots appear within acceptable range. S/E-S leader (interior leader) at first main bifurcation- decay present, remove limb. Remove heavy adventitious growth and monitor end weight of limbs. Do not allow end load to become excessive. Tree '9'10- 9519 Olney. with severe reservation/Remove within nevi two years. Monitor. Brown cubical rot present in main limbs. Buttress roots on S'E decay. Lighten canopy and abate potential hazard through lightening of end weight of limbs. Should additional indications of decay or structural unsoundness develop-remove. Tree 411- 9513 Olnev.1 pvith reseivatioj Remove S/W leader. SIX buttress root small area of decay. Tree is in decline and would benefit from deep feeding of root System. Tree 412-9509 Ohnev, e� Remove adventitious growth. Lighten end load of limbs thr improved structural soundness. This tree appears to he within acceptable limi is. /Tree 413- 9457 Ohiey. 4'.evere decay present. Structurally unsound. Tree 414- 9=753 Olney. Ita with severe reservation Brown cubical Rot present in SAV buttress root. Termites present. Moisture i-etawed within this area contributing to advancing decay. Monitor. Lighten end 1seigu t load on limbs: 8120197 at 11:13 PM Syncro Connect-Home (909) 909-737-9189 Page: b Sims Tree Specialist Tracey Enunerick Takeuchi City of Rosemead 8/20/97 11:09:18 PM 11:09 PM Tree 415- 9447 Olney with reservation. Failure hazard appears to be minimal with failure, should it occur, likely to be over street. S-SE leader light decay. Lighten end load weight on limbs. Monitor. Tree 416-9441 Olney. h reset anon. Remove deadwood N/W side. Recommend topical pesticide application to reduce borer threat, ants. and aphids within canopy of tree. free 417- 9428 Severe decline. Tree # 18- 9434 Olney. eMrt Slight decay present. Appears to be within acceptable limits. Monitor. Tree 419-9438 OLtev. R y Sligln decay at base in buttress root. Within acceptable limits. Monitor. Tree 420- 9444 Olney. Ile,II1. Paint stubs where improper pruning technique resulted in limb bark tear. Use white of light tan water based latex paint. Do Not use black tree tar or seal as this contributes to sunscald and fiuther decay. Remove N/E leader's end weight Decay present. Monitor. Tree 421-9450 Olney. tt'T, Tree appears to be within acceptable limits. Reduce end weight of limbs to lighten structural load. Monitor. Tree 4:22-9454 Olney. a`tvith motor reservation. Buttress roots minor decay present on SE side. Appears to be within acceptable limits. Monitor. E20/97 at 11:13 PM Syncro Connect-Home (909)909-737-9189 age: 9 Sims Tree Specialist Tracey Emmerick Takeuchi City of Rosemead 8/20./97 11:09:18 PM 11:09 PM Tree #23- 9460 Olney.Si with reservation]Brown cubical rot present. Slime flux N side-a combination invasion offimgal and bacterial invaders, present in location of "pitched"conductive tissue resulting in minor oozing of sap. Tree appears to be within acceptable limits. Monitor brown rot- Reeonunend removal within next three years. Treed 24- 9464 Olney r, rLtktr. Succulent plants at base make evaluation of buttress roots impossible. Major decay with conks throughout tree. Structure open and unsound due to extreme end weight with decay. and size of limbs. Reduction of limb end weight not an option in this case. Tree 425-9502 Olney. ' n with reservatioq S/E leader#h- N/E secondary leader-remove. Reduce end weight and monitor. Maintain 'educed end weight load of SAV "horizontal" lhnb. Monitor. Recommend for removal within two to three years- Tree 426-9510 Olnev. 77h4with moderate reservation/ S/W buttress rooks decay extensive. Monitor for fit ther decay or signs of increased struchnal unsoundness. Recommend for removal within neat two to three years. Tree #27- 9514 Olney. tat_ severe reservatioj Internal decay present. Buttress roots appear to he within acceptable limits. Main leader has 2 areas or decay to heartwood on the S and on the N sides. Open. Reduce weight. Do not allow end weight load to develop. Failure from end load due to internal decay may result. Monitor. Recommend for removal within next Iwo to three years. Tree #28-9520 Olney. tliplimire Tree severely disfigured. I20/97 a; 11'4 PM Syncro Connect- Home (909) P09-737-9189 Page 10 Sims Tree Specialist Tracey Emmerick Takeuchi Cih' of Rosemead 8/20'97 11:09:18 PM 11:09 PM Tree #29- 9524 Olney f[:< .tg1 • 1 Qajor decay of buttress roots and conks on scaffold branches on E side. Damage on S-S/W side. Tree #30-9530 Olney. 'Nen' Girdling root present on N side. Sulfiir fungus present (decay) on S leader. Remove small vertical limb on N/W side- sunscald. Reduce and maintain reduced end weight load. particularly on more horizontal limbs. Vertical leaders minor decay. Smallish tree. Failure hazard minimal. Monitor. Recommend removal within five years. Tree #31- 9546 Olney. Tree #32-9550 Olney. r )ave}9r retain with severe reservation. Monitor decay lrith major conks. bleeding decay. Reduce end weight. Tree is somewhat vertical in growth habit and therefore the hazard targets are somewhat seduced. Failure could occur Monitor for changes. Recommend removal within two to three years. Tree #33- 9556 011ier e - -rr--.��e Major decay present in all limbs. Tree#34- 9560 Olney.)Mwgcaith reseryatio njMinor decay present. Buttress roots within acceptable Emits. Monitor and reduce end weight. particularly of horizontal limbs. Possible bee hive within vee (. pis melrfera). Failure of limbs possible. however. hazard targels low. Monitor. Recommend for removal within ne\Y Pro to three years. 9700 Block of Olney Tree 435- 9702 Olney.aDecline. Major internal decay & conks. • 5120197 at 1114 PM Syncro Connect. Home (909) 909.731 9S9 Page 11 Sims Tree Specialist Tracey Emmerick Takeuchi City of Rosemead 8/20/97 11:09:18 PM 11:09 PM t7r( JP— jRta/Cr Tree #36- 9708 Obey ',[ ,ri< )tenial decay with conks present. Heavy end weight has resulted in limb failure in this tree in recent past. Decay in buttress roots on S/W side. Tree #37- 9714 Olney.Swith reservation Remove limb over hanging structure at main sten). Paint trimming wound with white or light tan latex paint to reduce decay and attack by insects. Monitor and maintain reduced end weight load on limbs. Buttress roots appear within acceptable limits. Monitor. Tree #38-9721 Olney. ' 3,35. Buttress roots severely decayed. Failure likely. Tree 439- 9727 Olney.W.alff. Tree appears to be within acceptable limits. Slight decay present. Monitor. Tree 440- 9726 Obey. er .m ..)Decay present. Multiple conks throughout scaffold branches. End of Report of individual findings. Conclusion These trees are inherently week and could fail for no apparent reason. None of these trees was found to be without defect. This report may be reproduced by the Cit' of Rosemead for the purpose of internal evaluation only. No part of this report. except as noted, may be reproduced ithout prior written approval of Sims Tree Specialist, or the Author. 8/20197 at 11:15 PM Syncro Connect- Home (909)909-757-9169 Hage. 12 Sims Tree Specialist Tracey Enunerick Takeuchi Cit- of Rosemead 8/20/97 I 1:09:18 PM 11:09 PM Sims Tree Specialist, and any agents of Sins Tree Specialists- are not responsible for failure of trees which have historically been pruned in such a way as contributing to the likelihood of said failure.