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TREE ASSESSMENT

REPORT

CITY OF LONDON 2020 INFRASTRUCTURE

RENEWAL PROGRAM CONTRACT #12

Highway Avenue and Lambeth Avenue London, Ontario

Project Number: 217122 Draft Submission Date: November 2017

Final Submission Date: March 2020

Prepared by:

Ian Johnston - Senior Consulting Arborist

ISA Certified Arborist # ON-0598A

ISA Tree Risk Assessment Qualification

DAVEY RESOURCE GROUP

519.476.2460

[email protected]

In Association with:

231 Wellington Street, Suite 2

London, ON N6B 2L2

519.667.1422

www.aliermanla.ca

mailto:[email protected]

1

INTRODUCTION

In October 2017, Ian Johnston, Senior Consulting Arborist with Davey Resource Group, in association

with Arthur Lierman Landscape Architecture, undertook an assessment of the existing trees with

respect to tree health, structure and preservation for the City of London 2020 Infrastructure Renewal

Program Contract #12 – Highway Avenue and Lambeth Avenue. The area assessed includes

Highway Avenue and Lambeth Avenue, from Wharncliffe Road South to Edward Street. An inventory

and an assessment of the existing trees were undertaken with consideration of the scope of work

including the replacement of storm sewers, sanitary sewers, watermain and water services, and

roadway reconstruction including the replacement of asphalt road, concrete curb and gutter, and

concrete sidewalks.

TREE PROTECTION AND REMOVAL

Trees to be retained and to be removed were determined based on tree health and structural criteria

(see Tree Assessment Codes), a detailed site inspection (see Tree Inventory and Assessment Charts

T.1 - T.5), and the installation requirements for the road works. Spriet Associates supplied the site

plans showing all existing tree and vegetation locations (see Tree Inventory Photographs and Tree

Preservation Plans TP.1 - TP.5 for tree identification numbers and locations). An extensive review of

the proposed site grading was undertaken which included consultations with the project engineer.

No construction, stockpiling or heavy equipment will be permitted beyond the construction limit (see

Tree Protection Fence Detail TPF.1). All tree related activities including pruning and removals within

the construction area will be carried out by certified arborists who will ensure adjacent trees, to be

retained, are not damaged (see Construction Process Requirements). Trees to be removed have been

indicated with an appropriate symbol as shown on the Tree Preservation Plans TP.1 - TP.5.

Construction project potential impacts to trees:

1. Physical damage to branches, trunks, and roots of trees to be retained.

2. Local moisture loss which may result from a decline in the water table during and after

construction.

3. Compaction of soil in or near root zones.

SUMMARY

The above recommendations are established to enhance the survival of the trees to be retained. While

it is preferred and positive to retain as many trees as possible, some trees that are in poor condition,

are unsafe, are an undesirable species, or are in conflict with the proposed construction activity,

cannot and should not be saved. This project may or may not have trees requiring removal.

2

REQUIREMENTS

The successful survival of the trees to be retained on site is largely dependent on adhering to the

following requirements:

A. Construction Process Requirements

1. Prior to tree removal operations, all removals will be clearly marked (i.e. all trees

designated for removal to be marked with spray paint).

2. Care will be taken during the removals to avoid damaging the branches, trunks, and roots

of nearby trees to be retained. Where possible all trees are to be felled into the construction

zone to minimize impacts to adjacent vegetation.

3. Where the potential exists for soil compaction and root damage, a 100mm (4in.) min.

thickness protection layer of wood chips covered by 19mm (3/4in.) thick plywood will be

installed over the root zone. Alternatives to using plywood, such as interlocking steel plates

or plastic ground protection mats, may be installed over the wood chips. This process is

necessary when construction activities cannot be excluded from root zones.

4. Where the potential exists for damage to tree trunks, a layer of (2in.x4in.x8ft. min.) wooden

cribbing encircled with wire shall be used to protect the tree from incidental contact by large

construction equipment (see Tree Trunk/Bark Protection Detail TTP.2).

5. Broken branches on trees to be retained will be properly pruned by a certified arborist as

soon as possible after the damage occurred.

6. Tree Protection Fencing will be installed under the supervision of a certified arborist and

maintained for the duration of the construction project (see Tree Protection Fence Detail

TTF.1). If the Tree Protection Fencing is required to be removed for sidewalk or curb

installation, it shall be replaced by the contractor immediately before commencing further

works.

When the Tree Protection Zone contains turf grass, a one metre wide opening shall

be made in the backside (adjacent to the public sidewalk or the private properties)

of the Tree Protection Fence, to allow the adjacent residents access with a mower

to cut the grass.

Leave all Tree Protection Fence in place until all construction work is

completed, including sodding.

7. No movement of equipment, construction activity, grade changes, surface treatment,

excavations or dumping of solvents, gasoline, etc. is permitted within the Tree Protection

zone (the Tree Protection Zone is the area inside the Tree Protection Fencing).

8. Where the roots of protected trees would be damaged by mechanical excavation, non-

invasive digging by hand, air excavation tool or hydro-vacuum equipment will take place.

Hydro-vacuum equipment must be operated as follows, to prevent root damage:

3

Maximum operating pressure 900psi until roots show, then 300-400psi to remove

soil around and under roots.

Water not aimed directly at roots.

Minimize contact with roots, keeping 150mm (6in.) away as much as possible.

This work is to be supervised by a certified arborist.

9. Once an adequate size of hole has been excavated by one of the non-invasive methods,

exposed roots need to be kept damp and protected from sun and wind until construction

work is complete. Back filling of the hole shall take place as soon as possible. Roots that

inhibit access of the hole for work activities may be pruned, only as needed, to access and

complete the work; this work is to be completed or supervised by a certified arborist.

10. Where installation of storm Private Drain Connections (PDCs), water services and curb

stops by open-cut methods will adversely affect tree roots, the contractor will install new

services by trenchless methods (ie. boring and / or hydro vacuum truck excavating), at

locations directed by the Contract Administrator (Note: see hydro-vacuum instructions in

item #8).

11. Sanitary PDCs are no longer required to be directional drilled/trenchless method under or beside trees. The connections in this situation, where two metres back of curb is unattainable, will be made at the EOP (Edge Of Pavement) instead, avoiding any contact with tree roots.

12. If grade changes are required in areas adjacent to trees to be retained, hand tools are to be

used over tree roots (to prevent damage to roots), in the areas below the tree’s canopy,

right out to the drip line. Where grade change significantly encroaches on a tree’s root

system, a retaining wall or a tree well may be required. A certified arborist is to be

consulted for direction in these situations.

13. For all boulevard trees 100mm in diameter (measured at 1.4m above ground) and larger, a

Plywood Boulevard Soil Retainer must be installed to assist in retaining moisture within the

soil (see Plywood Boulevard Soil Retainer Detail PSR.3). Install it immediately following the

removal of existing curbs. Leave the Plywood Boulevard Soil Retainer in place until

immediately before the installation of the new curbing.

14. Hand forming of curbs is to take place adjacent to all boulevard trees 100mm in diameter

(measured at 1.4m above ground) and larger, for a minimum distance of three metres in

both directions from the tree trunk.

15. All excavated areas adjacent to trees to be retained will be adequately backfilled with a

native soil substrate layer and a topsoil top layer, and then gently compacted, just to

eliminate air pockets. Original grades and conditions are to be replicated as much as

possible.

4

16. Final site grading will ensure that surface water is discharged from the site and the existing

soil moisture conditions are maintained.

17. Trenchless methods to be used when sanitary and storm PDCs and water services travel

through root systems. Curb stop and service connections to be excavated utilizing

hydrovac equipment when in root zones.

18. Minimal root pruning to be carried out to allow access, by construction workers, into the

excavations to carry out their work.

19. Curb stops within 3 m of tree trunks are to be moved to a different location, to avoid major

damage to tree roots and possible loss of the tree.

20. Leave the existing concrete sidewalk in place, a minimum of two panels either side of trees

100mm in diameter (measured at 1.4m above ground) and larger. Reusing the existing

base material of the existing sidewalk should be a priority in order to avoid/minimize

damage to roots.

21. A strategy to minimize root damage during sidewalk installation is the use of an alternative

sidewalk construction method. See Section B. Sidewalk Construction Requirements.

22. Exhaust from running vehicles, which is directed at living trees to be retained, is prohibited.

B. Sidewalk Construction Requirements

1. Sidewalk installation within the Critical Root Zone (CRZ) of trees may result in de-

stabilization due to the severing of supporting roots. The tree’s ability to take up water and

nutrients will also be severely curtailed due to major root loss. To avoid such ramifications,

sidewalks in the vicinity of these trees can be built using alternative methods. The

application of an alternative method is at the discretion of the municipality. The design and

implementation of an alternative method will be the result of collaboration between civil

engineering personnel and an arboricultural professional. Using an alternative method can,

in some cases, prevent the removal of a tree(s) when that tree(s) is identified for removal

due to construction impacts only.

2. Where an alternative sidewalk installation method is not utilized and a conventional

sidewalk construction method is employed, root pruning prior to excavation must be carried

out. This necessitates the digging of a trench parallel to and just outside the sidewalk’s

excavation footprint at a depth equal to that of the excavation and to the extents of the

tree’s drip-line. Trenching is to be carried out through the use of hydro-vacuum equipment

(refer to Item # 8 under Construction Process Requirements). A certified arborist must be

employed to carry out the root pruning. This process will prevent damage to the root

sections that will remain intact within the soil between the sidewalk and the tree. However,

this will not prevent the de-stabilization of the tree, nor will it prevent the curtailment of

water and nutrient uptake if the root pruning takes place within the tree’s CRZ.

5

C. Post-Construction Requirements

1. After construction, upon the assessment of a certified arborist, deep root fertilizing and / or

watering may be required as a remedial action to enhance the growing conditions of a

tree(s) inadvertently injured by construction activities. This would include trees with

damage to the trunk or crown and damage to roots that are within the Tree Protection

Zones.

2. Avoid discharging rain water leaders adjacent to all trees to be retained. This may cause an

overly moist environment which will cause the tree roots to rot.

3. After all of the work is completed, including boulevard restoration and sod

installation, the Tree Protection Fencing and other barriers will be removed.

4. A final review must be undertaken by a certified arborist to ensure that all mitigation

measures as described above have been met.

TREE REMOVALS

The following trees are recommended to be removed. These recommendations considered the health,

structure, location, liability, and construction impacts which may occur on the existing trees (see Tree

Assessment Codes and Tree Inventory & Assessment Charts T.1 – T.5).

EXECUTIVE SUMMARY

It is the recommendation of this report that a Temporary Tree Protection Fence be installed as per the

attached Tree Preservation Plans TP.1 - TP.5. All excavations in conflict with existing trees to be

retained shall be undertaken using Trenchless and Hydro Vacuum methods to ensure there is little or

no damage to the root systems. The contractor is to make themselves familiar with all excavation

practices (refer to item #8 in Construction Process Requirements for more information regarding

hydro-vacuum use). A certified arborist is to be employed to carry out or supervise all tree related

activities.

1. ID No. 12 – Norway Maple Mun. No. 26 Highway Ave.





6. ID No. 29 – Norway Maple Mun. No. 243 Edward St.





6

11. ID No. 47 – Red Maple Mun. No. 29 Highway Ave.




15. ID No. 64 – Norway Maple Mun. No. 16 Lambeth Ave.















30. ID. No. 102 – Honeylocust Mun. No. 450 Wharncliffe Rd. S.

TREE ASSESSMENT CODES

TREE HEALTH H1 Foliage normal colour H2 Foliage chlorotic (pale colour) H3 Foliage necrotic (dying / dead) H4 Foliage percent live crown ____% H5 Major pests / disease present H6 Growth obstructions (i.e. girdling vines, cables) CROWN / TRUNK DEFECTS C1 Codominant trunks / limbs C2 Included bark in forks C3 Multiple branch attachments (originating from one point on trunk) C4 Cracks / splits in trunk(s) / major limb(s): potential to fail C5 Major trunk wounds C6 Moderate trunk wounds C7 Major scaffold branch defects

7

C8 Moderate scaffold branch defects C9 Major decay C10 Moderate decay C11 Extensive cavity C12 Moderate cavity C13 Bark loose / missing ROOTS R1 Exposed roots R2 Severed roots R3 Major girdling roots R4 Root rot suspected R5 Buttress area wounded / diseased / decayed ECO-SETTING Og Open grown Hr Hedgerow Fe Forest edge Fi Forest interior SIGNIFICANCE OF TREE S1 Very significant; major contribution to landscape; preserve S2 Very significant; major contribution to landscape; cannot preserve S3 Significant; important and would be missed; preserve S4 Significant; important and would be missed; cannot preserve S5 Not significant; not likely to be missed; preserve S6 Not significant; not likely to be missed; not necessary to preserve S7 Detrimental; no contribution; do not preserve PROTECTION P1 Install fence at drip-line P2 Install fence within drip-line (certified arborist to supervise) P3 Install fence beyond drip-line ( ) metres P4 Install protective 100mm (4in.) min. thickness layer of wood chips over root zone P5 Install interlocking 19mm (3/4in.) min. thickness plywood panels over wood chips for a temporary roadway. Alternatives such as interlocking steel plates or plastic ground protection mats may be used P6 Install 60mm (2in.) min. thickness by 2.4m (8ft.) min. height wooden cribbing or planks

around trunk for protection from equipment. Use non-invasive means to secure protection to tree

P7 Prune to allow construction equipment access and prevent damage to crown P8 Monitoring and remedial work by a certified arborist recommended during construction P9 Install permanent retaining wall to prevent disturbance of roots when lowering / raising grade P10 Transplant to holding area and replant after construction P11 Protect boulevard from soil/root disturbance

11

TREE INVENTORY & ASSESSMENT CHART T.1 Highway Ave. & Lambeth Ave. - Contract #12, London, ON

ID No.

MUN. No. SPECIES DBH (mm)

CAN. (M)

HEALTH CROWN / TRUNK

DEFECTS SIG. PROTECTION

COMMENTS & RECOMMENDATIONS

1 418 Wharncliffe Rd. S. Honeylocust 425 10.6 H1 C1 S3 P2

2 418 Wharncliffe Rd. S. Honeylocust 314 7.6 H1 C1 S3 P2

3 418 Wharncliffe Rd. S. Honeylocust 336 7.6 H1 S3 P2

4 418 Wharncliffe Rd. S. Honeylocust 277 6.1 H! C1 S3 P2, P7 Prune for equipment clearance

5 418 Wharncliffe Rd. S. Honeylocust 317 9.4 H1, R5 C1 S3 P2 Fungi in buttress areas

6 418 Wharncliffe Rd. S. Norway Maple 286 8.2 H1 C1, C6 S3 - TPF not required

7 418 Wharncliffe Rd. S. Norway Maple 164 6.4 H1 C1, C8 S3 - TPF not required

8 14 Highway Ave. Norway Maple 389 9.7 H1 C1, C8, R3

S3 P2, P7 Prune for equipment clearance. Hand form curb 4.0m length centered on the tree trunk & plywood soil retainer

9 20 Highway Ave. Hedge Maple 191 6.4 C3 S3 P2, P7 Prune for equipment clearance. Hand form curb 4.0m length centered on the tree trunk & plywood soil retainer

10 22 Highway Ave. Schwedler Maple - 9.1 - - S3 P2 PRIVATE TREE

11 24 Highway Ave. Copper Beech - 7 - - S1 P2 PRIVATE TREE

12 26 Highway Ave. Norway Maple 448 10.6 H1 C1, C3, R3, C8

S4 - Perched high in boulevard. Construction conflict (curb, S/W, curbstop); REMOVE

13 28 Highway Ave. Japanese Maple - 2.7 - - S1 P1 PRIVATE TREE

14 30 Highway Ave. Norway Maple 573 11.8 H1 C1, C3, C7

S4 - Poor structure (defects). Construction conflict (fire hydrant, sanitary PDC, curb, curbstop); REMOVE

15 32 Highway Ave. Crabapple 292 8.2 H1 C3 S3 P2

16 34 Highway Ave. Norway Maple 629 13.6 H1 C1, C3, C8, R1, C9

S4 - Construction conflict; REMOVE

17 36 Highway Ave. Mountain Ash 214 6.4 H1 C3 S4 - REMOVE

18 36 Highway Ave. Norway Spruce - 9.1 - - S3 P1 PRIVATE TREE

18A 38 Highway Ave. Serviceberry 25 0.6 H1 - S3 P1

18B 42 Highway Ave. Sugar Maple 45 0.8 H1 - S3 P1

19 42 Highway Ave. Serviceberry 115 2.7 H1 C3 S3 P2 Hand form curb 4.0m length centered on the tree trunk & plywood soil retainer

20 44 Highway Ave. Sugar Maple 822 16.7 H1 C1, C2, C3, C8

S1 P2 Place curb stop in boulevard

21 52 Highway Ave. Globe Norway Maple 271 10 H1 C3 S3 P2, P7 Prune for equipment clearance

22 54 Highway Ave. Norway Spruce - 9.7 - - S3 P2 PRIVATE TREE

23 56 Highway Ave. Norway Maple 477 12.7 H1 C3, C5, C8, R3, R5

S4 - Several defects, Construction conflicts (curb, sanitary PDC, S/W); REMOVE

24 62 Highway Ave Silver Maple - 15.2 - - S3 P2 PRIVATE TREE

25 62 Highway Ave. Norway Maple 312 7.9 H1, H4 90%

C1, C4, C8


26 243 Edward St. Norway Maple 436 13.6 H1 C3, C8, R3


27 243 Edward St. Silver Maple - 14.2 - - S3 - PRIVATE TREE

12


ID No.


CAN. (M)




28 243 Edward St. Crabapple 309 9.4 H1 - S3 P2, P7 Prune for equipment clearance

29 243 Edward St. Norway Maple 498 12.1 H1 C1, C2, C3, C7, R3

S4 - Defects. Construction conflicts (catch basin, curb, S/W); REMOVE

30 246 Edward St. Honeylocust 232 10.9 H1 C1, R1 S3 P2

31 247 Edward St. Norway Maple 659 16.4 H1 C1, C2, C3

S3 P2

32 247 Edward St. Norway Maple 517 13 H1 C1, C3, C7, R3

S4 - Defects: major girdling roots, major ongoing wounding to large scaffold branch. Construction conflicts (curb, S/W); REMOVE

33 61 Highway Ave. Norway Maple 427 9.7 H1, H4 90%

C1, C2, R3


34 57 Highway Ave. Spruce 229 5.2 H1 - S3 P2

35 57 Highway Ave. Spruce - 5.2 - - S3 - PRIVATE TREE

36 57 Highway Ave. Norway Maple 496 12.7 H1 C1, C3 S3 P2 Hand form curb 4.0m length centered on the tree trunk & plywood soil retainer


S4 - Defects: perched high in boulevard, major root issues. Construction conflicts (curb, S/W); REMOVE

38 53 Highway Ave. Japanese Flowering Cherry

- 3.9 - - S1 P1 PRIVATE TREE

39 51 Highway Ave. Honeylocust 383 14.2 H1 C3 S3 P2, P7 Prune for equipment clearance. Hand form curb 4.0m length centered on the tree trunk & plywood soil retainer

40 49 Highway Ave. Norway Maple 504 12.1 C1, C2, C3, C7, R1, R3

S4 - Tree in slow decline. Construction conflicts (curb, S/W, driveway); REMOVE

41 43 Highway Ave. Honeylocust 329 10.6 H1 C3 S3 P2, P7 Prune for equipment clearance. Hand form curb 4.0m length centered on the tree trunk & plywood soil retainer

42 41 Highway Ave. Red Maple 176 5.5 H1 C1, C2 S3 P2, P7 Prune for equipment clearance. Hand form curb 4.0m length centered on the tree trunk & plywood soil retainer

42A 39 Highway Ave. Soft Maple 50 0.8 H1 - S3 P1

42B 37 Highway Ave. Soft Maple 50 0.8 H1 - S3 P1


S4 Various root issues, perched high in boulevard. Construction conflict (curb, S/W, water and sanitary services); REMOVE

44 35 Highway Ave. Crabapple - 10.9 - - S3 P1 PRIVATE TREE

45 33 Highway Ave. False Cypress 123 3.9 H1 - S3 P2

45A 33 Highway Ave. Soft Maple 60 0.8 H1 - S3 P1

46 31 Highway Ave. Silver Maple 102 6.4 H1 - S3 P2 Hand form curb 4.0m length centered on the tree trunk & plywood soil retainer

47 29 Highway Ave. Red Maple 148 6.1 H2, H4 50%

- S4 - Substantial dieback; REMOVE

48 27 Highway Ave. Crabapple 272 8.2 H1 C1, C3 S3 - REMOVED. SEE TP.1

13


ID No.


CAN. (M)




49 27 Highway Ave. Schwedler Maple 365 9.1 H1 C1 S3 P2, P7 Prune for equipment clearance. Hand form curb 4.0m length centered on the tree trunk & plywood soil retainer

50 25 Highway Ave. Norway Maple 375 7.3 H1 C3, C4, C5, C7, R3

S4 - Serious decline; REMOVE

51 21 Highway Ave. Norway Maple 439 10 H1, H4 85%

C1, C3 S3 P2, P7 Prune or equipment clearance. Hand form curb 4.0m length centered on the tree trunk & plywood soil retainer

52 19 Highway Ave. Norway Maple 264 7.3 H1 C1, C3 S3 P2, P7 Prune for equipment clearance. Hand form curb 4.0m length centered on the tree trunk & plywood soil retainer

53 17 Highway Ave. Norway Maple 373 7.6 H1 C6 S4 - Perched high in boulevard, buttress roots conflict with sidewalk and snow removal equipment. Safety issued; REMOVE

54 15 Highway Ave. Catalpa 453 6.7 H1 C1 S3 P2, P7 Prune for equipment clearance. Relocate SS & ST to south of sidewalk. Hand form curb 4.0m length centered on the tree trunk & plywood soil retainer

55 15 Highway Ave. Norway Maple 239 6.1 H1 - S3 P2 Hand form curb 4.0m length centered on the tree trunk & plywood soil retainer

56 13 Highway Ave. Norway Maple 392 7.9 H1 C1, C4 S4 - Major girdling roots, perched high in boulevard, tree starting to decline; REMOVE

57 13 Highway Ave. Hackberry 108 3.6 H1 - S3 P2

58 13 Highway Ave. Hedge Maple 157 4.8 H1 - S3 P2, P7 Prune for equipment clearance

59 444 Wharncliffe Rd. Scots Pine - 4.5 - - S3 P2 PRIVATE TREE

60 444 Wharncliffe Rd. Scots Pine - 4.5 - - S3 P2 PRIVATE TREE. REMOVED. SEE TP.2




63A 14 Lambeth Ave. Maple 45 0.8 H1 - S3 P1

64 16 Lambeth Ave. Norway Maple 407 11.2 H1 C3, R1 S4 - Construction conflict; REMOVE

65 22 Lambeth Ave. Norway Maple 526 14.2 H1 C1, C3, R1

S4 - Construction conflict (curb, sanitary PDC); REMOVE

66 24 Lambeth Ave. Norway Maple 352 9.4 H1 C6, C8 S4 - Construction conflict; REMOVE

67 24 Lambeth Ave. Norway Spruce - 8.2 - - S3 P2, P7 PRIVATE TREE, prune for equipment clearance

68 28 Lambeth Ave. Norway Maple 416 16.2 H1 C2, R3 S4 - Major root issues, Construction conflict (catch basin, curb, S/W, PDC); REMOVE

69 28 Lambeth Ave. Willow - 3 - - S3 P1 PRIVATE

70 32 Lambeth Ave. Mountain Ash - 1.8 - - S3 P1 PRIVATE TREE

71 36 Lambeth Ave. Honeylocust - 14.8 - - S3 P2 PRIVATE TREE

14


ID No.


CAN. (M)




72 38 Lambeth Ave. Japanese Flowering

Cherry

458 9.1 H1, H4 95%

C3, R1, C8


73 38 Lambeth Ave. Blue Spruce - 5.8 - - S3 P1 PRIVATE

74 42 Lambeth Ave. Norway Maple 667 14.2 H1 C1, C3, C8


75 46 Lambeth Ave. Serviceberry 124 5.2 H1 C3 S3 P2 Hand form curb 4.0m length centered on the tree trunk & plywood soil retainer

76 48 Lambeth Ave. Linden 266 7.9 H1 C1, C2, C3


77 50 Lambeth Ave. Norway Maple 417 10.9 H1 C1, C8, R1, R3

S4 - Major root issues. Construction conflict (curb, S/W); REMOVE

78 50 Lambeth Ave. Norfolk Island Pine - 2.1 - - S3 P1 PRIVATE TREE

79 52 Lambeth Ave. Blue Spruce - 4.8 - - S3 P1 PRIVATE TREE

80 54 Lambeth Ave. Chanticleer Pear 159 3.3 H1, H4 90%

C3 S3 P2 Hand form curb 4.0m length centered on the tree trunk & plywood soil retainer

81 56 Lambeth Ave. Norway Maple 1030 15.5 H1 C1, C2, R1, R5, C5, R4, C8

S4 - Structure defect, major target (house), root defects, decay; REMOVE

82 56 Lambeth Ave. Redbud - 5.2 - - S3 P2, P7 PRIVATE TREE. Prune for equipment clearance

83 58 Lambeth Ave. Norway Maple 453 12.7 H1 C1, C3 S4 - Construction conflict; REMOVE

83A 257 Edward St. Silver Maple 45 0.8 H1 - S3 P1

83B 257 Edward St. Sycamore 40 0.7 H1 - S3 P1

83C 257 Edward St. Silver Maple 40 0.7 H1 - S3 P1

84 257 Edward St. Norway Maple 401 11.2 H1 C3 S4 - Perched high in boulevard, visibility issue for vehicles. Construction conflict (curb, catch basin); REMOVE

85 261 Edward St. Norway Maple 558 10 H1 C1, C6 S4 - Construction conflict; REMOVE

85A 261 Edward St. White Oak 40 0.6 H1 - S3 P1

85B 61 Lambeth Ave. White Oak 30 0.6 H1 - S3 P1

86 61 Lambeth Ave. Magnolia - 8.5 - - S1 P1 PRIVATE TREE

86A 55 Lambeth Ave Silver Maple 40 0.7 H1 - S3 P1

87 55 Lambeth Ave. Norway Maple 518 12.1 H1 C1, C3, C8, R1

S3, P2, P7 Prune for equipment clearance. Hand form curb 4.0m length centered on the tree trunk & plywood soil retainer

87A 53 Lambeth Ave. Linden 40 0.7 H1 - S3 P1

88 51 Lambeth Ave. Norway Maple 427 10.3 H1 C1, R1 S4 - Perched high in boulevard with massive exposed buttress roots. Construction conflict (S/W, curb, driveway, water service); REMOVE

88A 47 Lambeth Ave. Sycamore 30 0.9 H1 - S3 P1

88B 47 Lambeth Ave. English Oak 50 1 H1 - S3 P1

15


ID No.


CAN. (M)




89 45 Lambeth Ave. Norway Maple 512 9.7 H1, H4 95%

C1, C3, R1, R3

S4 - Perched high in boulevard with massive exposed buttress roots and girdling roots. Construction conflict (S/W, curb, driveway, water service); REMOVE

89A 43 Lambeth Ave. Redbud 50 0.9 H1 - S3 P1

90 37 Lambeth Ave. Norway Maple 241 7 H1 C3 S3 P2, P7 Prune for equipment clearance. Relocate PDC to property line. Hand form curb 4.0m length centered on the tree trunk & plywood soil retainer

91 35 Lambeth Ave. Linden 256 6.7 H1 C2, C3 S3 P2, P7 Prune for equipment clearance. Relocate PDC close to property line, Hand form curb 4.0m length centered on the tree trunk & plywood soil retainer

92 31 Lambeth Ave. Norway Maple 513 12.4 H1, H4 70%

C1, C3, C6, C8

S4 Tree in decline. REMOVED. SEE TP.3

92A 31 Lambeth Ave. Redbud 50 0.8 H1 - S3 P1

93 27 Lambeth Ave. Norway Maple 810 16.1 H1 C1, C3, C2, R1,

C8


94 21 Lambeth Ave. Norway Maple 451 12.1 H! C3, C8, R1, R3

S4 Perched high in boulevard with massive exposed buttress roots and girdling roots. Construction conflict (S/W, curb, sanitary PDC, water service); REMOVE

95 19 Lambeth Ave. Linden 477 9.1 H1 C1, C2, C3, C4, R3

S3 P2, P7 Prune for equipment clearance. Relocate PDC close to property line. Hand form curb 4.0m length centered on the tree trunk & plywood soil retainer

96 17 Lambeth Ave. Norway Maple 435 9.7 H1 C1, C3, R1, R3, C5

S4 Perched high in boulevard with massive exposed roots and girdling roots, decay in trunk. Construction conflict (S/W, curb, sanitary PDC); REMOVE

97 17 Lambeth Ave. Catalpa - 6.7 - - S3 P1 PRIVATE TREE

97A 17 Lambeth Ave. Red Oak 30 0.8 H1 - S3 P1

97B 15 Lambeth Ave. Hackberry 45 0.8 H1 - S3 P1

98 15 Lambeth Ave. Emerald Cedar 97,107, 145

3 H1 C1, C2 S3 P1

99 15 Lambeth Ave. Sycamore 44 1 H1 - S3 P1

100 450 Wharncliffe Rd. Schwedler Maple 403 9.1 H1 C3 S3 P2

101 450 Wharncliffe Rd. Schwedler Maple 369 7.6 H1 C3 S3 P2

102 450 Wharncliffe Rd. Honeylocust 51 3.6 H1 C1, C3 S4 Construction conflict (sanitary PDC); REMOVE

103 450 Wharncliffe Rd. Honeylocust 132 6.1 H! C1 S3 P2 Make PDC at the edge of pavement. Hand form curb 4.0m length centered on the tree trunk & plywood soil retainer

104 450 Wharncliffe Rd. Honeylocust 138 6.7 H1 C3 S3 P2 Hand form curb 4.0m length centered on the tree trunk & plywood soil retainer

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TREE INVENTORY PHOTOGRAPHS

Highway Ave. & Lambeth Ave. – Contract #12, London, ON

#1 & #2 Honeylocust – 418 Wharncliffe Rd. S.

#3 & #4 Honeylocust – 418 Wharncliffe Rd. S.

#5 Honeylocust – 418 Wharncliffe Rd. S.

#6 & #7 Norway Maple – 418 Wharncliffe Rd. S.

#8 Norway Maple – 14 Highway Ave.

#9 Hedge Maple – 20 Highway Ave.

#10 Schwedler Maple – 22 Highway Ave. #11 Copper Beech – 24 Highway Ave. #12 Norway Maple – 26 Highway Ave.

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#13 Japanese Maple – 28 Highway Ave.

#14 Norway Maple – 30 Highway Ave. #15 Crabapple – 32 Highway Ave.

#16 Norway Maple– 34 Highway Ave. #17 Mountain Ash– 36 Highway Ave. #18 Norway Spruce – 36 Highway Ave.

#18A Serviceberry – 38 Highway Ave. #18B Sugar Maple – 42 Highway Ave. #19 Serviceberry – 42 Highway Ave.

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#20 Sugar Maple – 44 Highway Ave. #21 Globe Norway Maple –

52 Highway Ave. #22 Norway Spruce – 54 Highway Ave.

#23 Norway Maple – 56 Highway Ave. #24 Silver Maple – 62 Highway Ave.

#25 Norway Maple – 62 Highway Ave

#26 Norway Maple – 243 Edward St. #27 Silver Maple – 243 Edward St.

#28 Crabapple – 243 Edward St.

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#29 Norway Maple – 243 Edward St. #30 Honeylocust – 246 Edward St. #31 Norway Maple – 247 Edward St.

#32 Norway Maple – 247 Edward St. #33 Norway Maple – 61 Highway Ave.

#34 & #35 Spruce – 57 Highway Ave.

#36 Norway Maple– 57 Highway Ave. #37 Norway Maple – 55 Highway Ave.

#38 Japanese Flowering Cherry – 53 Highway Ave.

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#39 Honeylocust – 51 Highway Ave. #40 Norway Maple – 49 Highway Ave. #41 Honeylocust – 43 Highway Ave.

#42 Red Maple – 41 Highway Ave. #42A Soft Maple – 39 Highway Ave. #42B Soft Maple – 37 Highway Ave.


#44 Crabapple – 35 Highway Ave. #45 False Cypress – 33 Highway Ave.

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#45A Soft Maple – 33 Highway Ave. #46 Silver Maple – 31 Highway Ave.

#47 Red Maple – 29 Highway Ave.

#48 Crabapple – 27 Highway Ave. #49 Schwedler Maple –

27 Highway Ave. #50 Norway Maple – 25 Highway Ave.

#51 Norway Maple – 21 Highway Ave. #52 Norway Maple – 19 Highway Ave.


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#54 Catalpa – 15 Highway Ave. #55 Norway Maple – 15 Highway Ave.


#57 Hackberry – 13 Highway Ave. #58 Hedge Maple – 13 Highway Ave. #59, #60, #61, #62 & #63 Scots Pine

– 444 Wharncliffe Rd.

#63A Maple – 14 Lambeth Ave. #64 Norway Maple – 16 Lambeth Ave. #65 Norway Maple – 22 Lambeth Ave.

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#66 Norway Maple – 24 Lambeth Ave. #67 Norway Spruce – 24 Lambeth Ave. #68 Norway Maple – 28 Lambeth Ave.

#69 Willow – 28 Lambeth Ave. #70 Mountain Ash – 32 Lambeth Ave. #71 Honeylocust – 36 Lambeth Ave.

#72 Japanese Flowering Cherry – 38 Lambeth Ave.

#73 Blue Spruce – 38 Lambeth Ave. #74 Norway Maple – 42 Lambeth Ave.

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#75 Serviceberry – 46 Lambeth Ave. #76 Linden – 48 Lambeth Ave. #77 Norway Maple – 50 Lambeth Ave.

#78 Folk Island Pine – 50 Lambeth Ave. #79 Blue Spruce – 52 Lambeth Ave. #80 Chanticleer Pear – 54 Lambeth Ave.

#81 Norway Maple – 56 Lambeth Ave. #82 Redbud – 56 Lambeth Ave. #83 Norway Maple – 58 Lambeth Ave.

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#83A Silver Maple – 257 Edward St. #83B Sycamore – 257 Edward St. #83C Silver Maple – 257 Edward St.

#84 Norway Maple – 257 Edward St. #85 Norway Maple – 261 Edward St. #85A White Oak – 261 Edward St.

#85B White Oak – 61 Lambeth Ave. #86 Magnolia – 61 Lambeth Ave.

#86A Silver Maple – 55 Lambeth Ave.

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#87 Norway Maple – 55 Lambeth Ave. #87A Linden – 53 Lambeth Ave. #88 Norway Maple – 51 Lambeth Ave.

#88A Sycamore – 47 Lambeth Ave. #88B English Oak – 47 Lambeth Ave. #89 Norway Maple – 45 Lambeth Ave.

#89A Redbud – 43 Lambeth Ave. #90 Norway Maple – 37 Lambeth Ave. #91 Linden – 35 Lambeth Ave.

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#92 Norway Maple – 31 Lambeth Ave.

#92A Redbud – 31 Lambeth Ave. #93 Norway Maple – 27 Lambeth Ave..

#94 Norway Maple – 21 Lambeth Ave. #95 Linden – 19 Lambeth Ave.

#96 Norway Maple – 17 Lambeth Ave.

#97 Catalpa – 17 Lambeth Ave. #97A Red Oak – 17 Lambeth Ave. #97B Hackberry – 15 Lambeth Ave.

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#98 Emerald Cedar – 15 Lambeth Ave. #99 Sycamore – 37 15 Lambeth Ave. #100 Schwedler Maple

– 450 Wharncliffe Rd.

#101 Schwedler Maple – 450 Wharncliffe Rd.

#102 Honeylocust – 450 Wharncliffe Rd. #103 Honeylocust – 450 Wharncliffe Rd.

#104 Honeylocust – 450 Wharncliffe Rd.

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