TREE SURVEY SCHEDULE (BS5837: 2012)tree survey schedule (bs5837: 2012) site: former denbigh education & technology centre, middle rd, denbigh surveyor: a. henderson client: grwp cynefin

TREE SURVEY SCHEDULE (BS5837: 2012) SITE: FORMER DENBIGH EDUCATION & TECHNOLOGY CENTRE, MIDDLE RD, DENBIGH SURVEYOR: A. HENDERSON

CLIENT: GRWP CYNEFIN ASSESSMENT DATE: 18 JULY 2016 PAGE 1 OF 4

BRIEF: ARBORICULTURAL IMPACT ASSESSMENT VIEWING CONDITIONS: GOOD

JOB REFERENCE: 16/AIA/DEN/22

TREE NO.

T - Tree G - Group H- Hedge

SPECIES

(COMMON NAME)

AGE

HEIGHT (m) + CROWN CLEARANCE/DIRECTION OF GROWTH (N.S.E.W)

RADIAL CROWN SPREAD

(m)

N S E W

ST

EM

/

MU

LT

I-ST

EM

* D

IA.(m

m)

VITALITY

COMMENTS

MANAGEMENT

CATEGORY

& SUB-CATEGORY GRADING BS 5837

BS 5837 RADIUS

(m)

RPA (m2)

T1

Pine

M

16

4E

5

6

7

7

600 G

Prominent tree to Middle Road

Small retaining wall to south - roots likely to spread beneath

Tree appears in good health & vigour

Heavily Ivy encrusted around base of stem impeding inspection

E.R.C. 20+

Sever Ivy around base & re-inspect in 12 months

A2

7.2

163m²

T2

Beech

(Purple)

M

16

1N

5 4 4.5 4.5 720 G Significantly restricted rooting environment

Main access road over primary roots to east - boundary wall to west

E.R.C. ≤20

Could be considered for removal

B2

8.6

235m²

T3

Beech

(Purple)

M

MD In advanced decline with significant dieback in crown

Ganoderma butt & root decay fungi bracket at base to west

E.R.C. 0

Remove U

N/A

HEADINGS & ABBREVIATIONS TREE NO. REFERENCE NUMBER. REFER TO PLAN OR NUMBERED TAGS WHERE APPLICABLE (T = TREE, G = GROUP, H = HEDGE) SPECIES: COMMON NAME (LATIN NAMES AVAILABLE ON REQUEST) AGE RANGE/LIFE STAGE: Y = YOUNG, SM = SEMI MATURE, EM = EARLY MATURE, M = MATURE, PM = POST MATURE HEIGHT: ESTIMATED AND RECORDED IN METRES. APPROXIMATELY 1 IN 10 TREES ARE MEASURED USING A CLINOMETER AND THE REMAINDER ESTIMATED AGAINST THE MEASURED TREES CROWN SPREAD: MAXIMUM CROWN RADIUS MEASURED TO THE FOUR CARDINAL COMPASS POINTS FOR SINGLE SPECIMENS ONLY (MEASUREMENT FOR TREE GROUPS - MAXIMUM RADIUS OF THE GROUP) CROWN CLEARANCE & DIRECTION OF GROWTH: STEM DIA/MULTI-STEM DIA:

HEIGHT IN METERS OF CROWN CLEARANCE ABOVE ADJACENT GROUND LEVEL (TO INFORM ON GROUND CLEARANCE, CROWN/STEM RATIO AND SHADING) STEM DIAMETER - MEASURED AT APPROXIMATELY 1.5 METRES ABOVE GROUND LEVEL OR A COMBINATION OF STEMS FOR MULTI-STEMMED TREES

VITALITY: E.R.C. = ESTIMATED REMAINING CONTRIBUTION: BS 5837CATEGORY & SUB-CATEGORY GRADING: BS 5837 RADIUS & BS 5837 RPA:

A MEASURE OF PHYSIOLOGICAL CONDITION. D = DEAD, MD = MORIBUND, P = POOR, M = MODERATE, G = GOOD RELATIVE USEFUL LIFE EXPECTANCY (YEARS) A = HIGH QUALITY AND VALUE, B = MODERATE QUALITY AND VALUE, C = LOW QUALITY AND VALUE, U = UNSUITABLE FOR RETENTION (SUB-CATEGORY REFERS TO ARBORICULTURAL., LANDSCAPE AND CULTURAL/CONSERVATION VALUES) PROTECTIVE DISTANCE - RADIUS FROM THE CENTRE OF THE STEM TO THE LINE OF TREE PROTECTION (CONSTRUCTION EXCLUSION ZONE - CEZ) AND PROTECTIVE BARRIER ROOT PROTECTION AREA - BS 5837 (2012) ANNEX D (THE RECOMMENDATIONS STATE THAT THE RPA SHOULD BE CAPPED AT 707 M2) NOTE – ALL CALCULATIONS ROUNDED TO NEAREST DECIMAL





TREE NO.


SPECIES

(COMMON NAME)

AGE


RADIAL CROWN SPREAD

(m)

N S E W

ST

EM

/

MU

LT

I-ST

EM

* D

IA.(m

m)

VITALITY

COMMENTS

MANAGEMENT

CATEGORY


BS 5837 RADIUS

(m)

RPA (m2)

T4

Beech

(Purple)

M

10

1N

5

5.5

4

4

930 M

Small stunted tree due to inhospitable rooting environment

Tarmac hard standing over all primary roots

Large canker on stem to SE

Poor quality tree of no long-term viability

E.R.C. 0

Remove C1

11.2

391m²

T5

Hawthorn

M

9

1E

4 2 3 3 200 G Located outside western boundary beyond retaining wall with no access to survey

Stem appears decayed

E.R.C. <10

3rd party tree - N/A

C2

2.4

18m²

T6

Beech

(Purple)

FM

18

1E

8

6

7

7

1300 G

Prominent tree to locale

Located at top of downward sloping embankment with high retaining wall to north restricting root growth

Building and hard standing areas to south

Stem bifurcates to 4 main leaders from 2.5m -

Ivy clad stem impeding inspection

E.R.C. 20+

Sever Ivy at base A1

15

707m²

T7

Pine

M

19

16W

4

3

3

2

450 M

Poor structural form

Ivy clad stem impeding inspection

Insignificant tree of low value

E.R.C. 0

Remove & replace with better quality specimen tree

C1

5.4

92m²





TREE NO.


SPECIES

(COMMON NAME)

AGE


RADIAL CROWN SPREAD

(m)

N S E W

ST

EM

/

MU

LT

I-ST

EM

* D

IA.(m

m)

VITALITY

COMMENTS

MANAGEMENT

CATEGORY


BS 5837 RADIUS

(m)

RPA (m2)

T8

Pine

M

15

1S

1

3

1

2.5

260 M

Small insignificant tree

E.R.C. 10

Remove for development

C1

3.1

31m²

T9

Pine

M

18

4N

4

4

4

4

500 G

Prominent tree

Abuts boundary retaining wall

No visual defects

E.R.C. 20

Remove to accommodate new access

B2

6

113m²

T10

Beech

(Purple)

M

16

0.5E

5

7

7

7.5

720

G

Crown lifted in past leaving multiple pruning wounds - many have failed to callus

Prominent tree with no significant defects

E.R.C. 40+

Remove to accommodate new access

A1

8.6

235m²

T11

Cypress

M

11

0

2

2

2

2

350 G

No significant defects

Not a visually prominent or attractive specimen to locale - no loss in amenity if removed

E.R.C. 10


C1

4.2

55m²

T12

Beech

(Purple)

FM

16

1W

7

8

8

8

1180 M

Appears stressed with tip dieback in upper crown

Crown overhanging building to west

Reaching the end of its natural life

E.R.C. 40

Could be considered for removal & replacement with a better quality specimen tree

B2

14.2

630m²





TREE NO.


SPECIES

(COMMON NAME)

AGE


RADIAL CROWN SPREAD

(m)

N S E W

ST

EM

/

MU

LT

I-ST

EM

* D

IA.(m

m)

VITALITY

COMMENTS

MANAGEMENT

CATEGORY


BS 5837 RADIUS

(m)

RPA (m2)

G1

Holly

M

≤4

0

2

2

2

2

200

G

Small insignificant trees easily replaced by new planting

E.R.C. 10

N/A C2

2.4

18m²

G2

Damson Pear Apple

Cotoneaster

M

≤11 4

4

4

4

≤300 M

Unattractive, unmanaged scrub and damaged trees of no value

E.R.C. 0

Remove C2

3.6

41m²

G3

Birch Cherry

Mountain Ash Willow

EM

≤10 ≤250 M

Located in central courtyard with no access to survey

Trees are not visually prominent being screening on all boundaries by the building

E.R.C. 0


C2

3

28m²

H1

Beech

M

1.8

20 G

Good quality boundary hedge offering screening to site

E.R.C. 20

N/A B2

0.3

Table 1 Cascade chart for tree quality assessment

Category and definition Criteria (including subcategories where appropriate) Identificationon plan

Trees unsuitable for retention (see Note)Category U

Those in such a conditionthat they cannot realisticallybe retained as living trees inthe context of the currentland use for longer than10 years

• Trees that have a serious, irremediable, structural defect, such that their early loss is expected due to collapse,including those that will become unviable after removal of other category U trees (e.g. where, for whateverreason, the loss of companion shelter cannot be mitigated by pruning)

• Trees that are dead or are showing signs of significant, immediate, and irreversible overall decline

• Trees infected with pathogens of significance to the health and/or safety of other trees nearby, or very lowquality trees suppressing adjacent trees of better quality

NOTE Category U trees can have existing or potential conservation value which it might be desirable to preserve;see 4.5.7.

See Table 2

1 Mainly arboricultural qualities 2 Mainly landscape qualities 3 Mainly cultural values,including conservation

Trees to be considered for retentionCategory A

Trees of high quality with anestimated remaining lifeexpectancy of at least40 years

Trees that are particularly goodexamples of their species, especially ifrare or unusual; or those that areessential components of groups orformal or semi-formal arboriculturalfeatures (e.g. the dominant and/orprincipal trees within an avenue)

Trees, groups or woodlands of particularvisual importance as arboricultural and/orlandscape features

Trees, groups or woodlandsof significant conservation,historical, commemorative orother value (e.g. veterantrees or wood-pasture)

See Table 2

Category B

Trees of moderate qualitywith an estimated remaininglife expectancy of at least20 years

Trees that might be included incategory A, but are downgradedbecause of impaired condition (e.g.presence of significant thoughremediable defects, includingunsympathetic past management andstorm damage), such that they areunlikely to be suitable for retention forbeyond 40 years; or trees lacking thespecial quality necessary to merit thecategory A designation

Trees present in numbers, usually growingas groups or woodlands, such that theyattract a higher collective rating than theymight as individuals; or trees occurring ascollectives but situated so as to make littlevisual contribution to the wider locality

Trees with materialconservation or othercultural value

See Table 2

Category C

Trees of low quality with anestimated remaining lifeexpectancy of at least10 years, or young trees witha stem diameter below150 mm

Unremarkable trees of very limitedmerit or such impaired condition thatthey do not qualify in higher categories

Trees present in groups or woodlands, butwithout this conferring on themsignificantly greater collective landscapevalue; and/or trees offering low or onlytemporary/transient landscape benefits

Trees with no materialconservation or othercultural value

See Table 2

BR

ITISHSTA

ND

AR

DB

S5837:2012

©Th

eB

ritishStan

dard

sIn

stitutio

n2012

•9

Alistair

Highlight

Alistair

Highlight

Alistair

Highlight

Alistair

Highlight

5m 10m

1

2

3

4

5*#

6

7

8

9

10

11

12

G1

G2*

G3*

H1

Sm Holly

Crown

Spread

Tree

Number

Category

Root

Protection

Area

13

Category A

(High Quality)

Category B

(Moderate Quality)

Do not scale from this drawing all dimensions to be

checked on site.

The copyright of this document resides with Tree

Solutions unless assigned in writing by the company

Job Ref:

Drawn By:

Scale: Date:

Revision:

AM

1-250@A1 July 2016

-

Title:

Preliminary Tree Constraints Plan

Project:

Former Denbigh Education & Technology Centre,

Middle Rd, Denbigh, LL16 3UT

Client:

Grwp Cynefin

Root Protection Area

Modified to Account for

Site Features

Legend

16/AIA/DEN/22 01

Drawing No:

E: [email protected]

W: www.tree-solutions.co.uk

T: 01244 389114

M: 07766 774508

Category C

(Low Quality)

Category U

(Dead/Dying/In Decline)

NOTES: Tree/group numbers marked with an * have

approximate locations. Trees marked with # have

approximate measurements as outside site boundary

with no access.

N

W E

S

Documents

TREE SURVEY SCHEDULE (BS5837: 2012)tree survey schedule (bs5837: 2012) site: former denbigh education & technology centre, middle rd, denbigh surveyor: a. henderson client: grwp cynefin