APPENDIX 21 ROUTE SELECTION

A21.1 Nodes 1 to 3

Node 1 - 3

Green

Yellow

Segments

Green (Nodes 1 to 3)

Yellow (Nodes 1 to 3)

IMPACT ASSESSMENT (with appropriate mitigation measures)

COMPARISON

Refer to Chapter

Comments

Impact

Comments

Impact

Landscape and aesthetics

Crosses Local Scenic Area and scenic route
Noticeable change to view from few properties.

Major Adverse

Crosses Local Scenic Area and scenic route
Noticeable change to view from few properties

Major Adverse

The Green and Yellow routes are through similar landscape areas and the impact on both would be similar. Both routes would cross a Scenic Area, and would cross the designated scenic route A25. Visual impact would be to a similar number of properties.

Cultural Heritage

Moderate impact on 1 AAP

Moderate Adverse

Major impact on 1 Recorded Monument
Moderate impact on 1 AAP

Major Adverse

Both routes have moderate impact on one area of archaeological potential. Realignment of existing road on approach to junction may have a direct effect on the Holy Well (AH001) in Ballyvourney.

Surface Water Quality and Drainage

No change to flood risk
Crosses one unclassified tributaries

Minor Adverse

No change to flood risk
Crosses one unclassified tributaries

Minor Adverse

There would be no change to flood risk by either route. Both rivers cross one unclassified tributary of the River Sullane.

Geology

Short length of high embankment
Moderate excess of fill

Moderate Adverse

Good cut/fill balance

Moderate Adverse

E+

The yellow route does not include any high embankment, a short length of which is present on the green route. The yellow route also has a very good overall cut and fill balance compared with the green route.

Hydrogeology

Aquifer - Moderately productive locally

Minor Adverse

Aquifer - Moderately productive locally

Minor Adverse

Ecology

Large part of one site of high ecological value (Cascade Wood )
Large part of 1 site of low ecological value

Major Adverse

Large part of one site of high ecological value (Cascade Wood )
Large part of 1 site of low ecological value

Major Adverse

Both routes have a major adverse impact on Site 1b (Cascade Wood), which is of high ecological value and may correspond to the Annex I habitat ‘Old Sessile Oak Woodland’.

Air Quality

7 properties within 200m
No exceedances of Air quality standards

Minor Adverse

7 properties within 200m
No exceedances of Air quality standards

Minor Adverse

With respect to air quality there is no difference between the Yellow and Green routes within this section.

Noise and Vibration

13 residential properties within 300m

Minor Adverse

12 residential properties within 300m
+ 5 properties on existing N22 section to be upgraded

Minor Adverse

With respect to noise and vibration there is no difference between the Yellow and Green routes within this section.

Planning

Crosses Area of Scientific Interest (D25)
Crosses Scenic Area
Crosses Scenic Route A25

Moderate Adverse

Crosses Area of Scientific Interest (D25)
Crosses Scenic Area
Crosses Scenic Route A25

Moderate Adverse

Both routes bisect a designated Scenic Area, and Cascade Wood, which is designated as an area of scientific importance (D25) within the South Cork County Development Plan. They both also cross the Ballyvourney to Mullaganish road, designated in the South Cork Plan as scenic route A25.

Socio-Economics

Increase in distance and journey times
Some residents may be isolated from services.
Decrease in passing trade for Ballyvourney & Ballymakeery

Minor Adverse

Increase in distance and journey times
Decrease in passing trade for Ballyvourney & Ballymakeery

Minor Adverse

The routes will bypass Ballyvourney, which will result in the loss of passing trade to local businesses but the environment within the village will be improved by reduced traffic including reduction in heavy goods vehicles.

Demolition and loss of amenity

Loss of Cascade Wood amenity

Moderate Adverse

Loss of Cascade Wood amenity

Moderate Adverse

The local population uses Cascade Wood as an amenity. Both routes would require landtake through this area and divide the wood.

Agriculture

Total of 9.14ha
Average land rating 1.6

Minor Adverse

Total of 5.3 ha
Average land rating 1.6

Minor Adverse

D+

The affect on agricultural land will be similar for both routes, with both routes passing through similar quality agricultural land consisting of reclaimed grassland and rocky scrub areas. However, the Green route would have a slightly greater landtake.

Mineral Resources

No Impact

Construction Impacts

Traffic disruption on existing N22

Moderate Adverse

Traffic disruption along N22 between tie-in and node 1.

Major Adverse

The construction of the tie-in on the existing N22 will cause some disruption to traffic.

+ indicates greater preference for route section.

OTHER INFORMATION*

Road Alignment

Limited by: tie-in to existing N22, properties around Ballyvourney, Sullane river and St Gobnait's wood to south, and hilly terrain to north.
Relaxations to vertical crests.
No overtaking opportunities.

Scheme Cost Estimate (€/1000)

8,027

9,628

Construction Cost, Contingency, Land Cost and Design & Supervision excl. VAT

(includes €1,798k to upgrade the existing N22 from the tie-in to the improved N22)

Traffic figures

2024 AADT = 10,200

2024 AADT = 10,100

Standard single carriageway. (see chapter 22).

Scheme length (km)

2.0

1.1 + 0.7 to upgrade N22 to Node 1

Demolition:

No. of houses

No. of businesses

No. of properties:

within 0m - 50m

within 50m - 100m

within 100m - 200m

within 200m - 300m

No of Crossings:

river/stream

national roads

regional roads

minor roads

farm accesses

No. of road bridges/underbridges

Earthworks:

Cut m3

58,200

254,900

fill m3

57,900

15,000

* Data taken from feasibility design - subject to amendment at later design stages

A21.2 Nodes 3 to 6

Nodes 3 - 6

Green

Green/Link1/Yellow

Yellow

Segments

Green (Nodes 3 to 6)

Green (Nodes 3 to 4)
Link1 (Nodes 4 to 5)
Yellow (Nodes 5 to 6)

Yellow (Nodes 3 to 6)

IMPACT ASSESSMENT (with appropriate mitigation measures)

COMPARISON

Refer to Chapter

Comment

Impact

Comment

Impact

Comment

Impact

Landscape and aesthetics

Crosses Local Scenic Area and scenic route proposals result in noticeable change to view from Clondrohid and scattered properties

Major Adverse

F++

Landscape mostly moderate, although crosses through local Scenic area
Significant change to views from some properties in Macroom

Major Adverse

F+

Landscape mostly moderate, although crosses through local Scenic area Significant change to views from Ballymakeery and some properties in Macroom
Changes to views from scenic route A26 (N22)

Major Adverse

The Yellow route would affect the views from residential areas in Ballyvourney and Macroom, whereas the Green and Green/Link/Yellow routes would influence the views from only one residential area (Clondrohid and Macroom respectively).

Cultural Heritage

Major impact on 3 recorded Monuments
Major impact on 2 potential sites (AS)
Moderate impact on 6 Rec Monuments
Moderate impact on 1 built heritage site
Moderate impact 2 AAP
Minor impact on 1 Rec Mon
Minor impact on 2 built heritage sites
Minor impact 3 potential site (AS)

Major Adverse

Major impact on 1 recorded Monuments
Moderate impact on 8 Rec Monuments
Minor impact on 1 Recorded Monuments
Moderate impact 2 AAP
Minor impact on 1 potential site (AS)

Major Adverse

F+

Major impact on 4 recorded Monumnts
Moderate impact on 1 potential site (LH)
Moderate impact on 5 Rec Monuments
Moderate impact on 1 built heritage site
Moderate impact 4 AAP
Minor impact on 1 Rec Monuments
Minor impact on 3 potential sites (AS)

Major Adverse

F+

The Green/Link/Yellow route would affect the least sites and monuments. The Green route would affect the greatest number of sites and monuments.

Surface Water Quality

Crosses Class A rivers (x2)
Crosses unclassified rivers (x11)
Local and Ltd flood risk

Major Adverse

F++

Cross Class A River (x4)
Cross unclassified river (x12)
Minor inc in flood risk to agricultural areas

Major Adverse

Cross Class A river (x1)
Cross unclassified river (x9)
Ltd increase in flood risk which may affect a wide area

Major Adverse

F+

The Yellow route exerts the least impact, crossing 1 Class A river only. The Green /Link Yellow route is also considered to represent a localised and limited increase to the flood risk of the Foherish River

Geology

Major Adverse

The Green/Link/Yellow route has the greatest length of high embankment and deep cutting. It also crosses the greatest length of soft ground.

Major Adverse

The Yellow route has shallower cuttings, crosses less soft ground and has a better cut and fill balance than the Green route. The Yellow also has more high embankment compared to the Green route.

Hydrogeology

Moderatively productive locally to west and generally unproductive to the east

Minor Adverse

D+

Moderatively productive locally to west and generally unproductive to the east

Minor Adverse

D++

Moderatively productive locally to west and generally unproductive to the east

Minor Adverse

Ecology

Large part of 1 site high value (Annex)
Small part of 1 site high value (Annex)
Large part of 1 site low value
Small part of 7 sites low value

Major Adverse

Large part of 1 site high value (Annex)
Small part of 1 site high value (Annex)
Large part of 3 site low value
Small part of 7 sites low value

Major Adverse

F+

Small part of 1 site high value (Annex)
Large part of 2 site low value
Small part of 4 sites low value

Moderate Adverse

The Green route and the Green/Link/Yellow route would each pass through a site of high, or potentially high ecological value, which may correspond to Annex 1 habitat “Old Sessile Oak Woodland”.

Air Quality

57 properties within 200m
4 commercial properties within 200m
No exceedances of air quality standards

Moderate Adverse

E++

70 properties within 200m
1 commercial property within 200m
No exceedances of air quality standards

Moderate Adverse

E+

102 properties within 200m
8 commercial properties within 200m
No exceedances of air quality standards

Moderate Adverse

There would be more receptors affected by the Yellow. Green and Green/Link/Yellow have a similar number of properties along each route.

Noise and Vibration

94 residential properties within 300m
6 commercial properties within 300m (including Clondrohid Community Hall - 200m)
Noise levels increase by 23 dB

Moderate Adverse

130 residential properties within 300m
2 commercial properties within 300m
Noise levels increase by 23 dB between nodes 3-4 and decrease by 5 dB between 5-6

Major Adverse

230 residential properties within 300m
22 commercial properties within 300m
Noise levels decrease by 5 dB

Major Beneficial

For the Yellow route, there are high numbers of residential properties within 300m of the route, which are already subject to noise from the existing N22. The noise impact on these properties is likely to decrease due to the noise absorbing capabilities of modern road surfaces.

Planning

Area of Scientific Interest (D8)
Scenic Area
crosses Clondrohid development boundary, and splits an area zoned for housing development.
crosses View at Clondrohid
Provides by-pass for Macroom - preserving housing stock

Moderate Adverse

Areas of Scientific Interest (D25)
Scenic Area
crosses View at Clondrohid
Provides by-pass for Macroom- preserving housing stock

Moderate Adverse

E+

Crosses Scenic Areas
Crosses Area of Scientific Interest D25
may take northern edge of D48
Crosses and runs alongside Scenic route A26
Provides by-pass for Macroom- preserving housing stock

Moderate Adverse

E++

All of the routes provide a by-pass for the town of Macroom, supporting local and county policies.

SocioEconomics / Businesses

Isolation of Ullanes West
Isolate a number of small communities and split the community of Clondrohid.
Decrese in passing trade along N22
Increase in travelling time for some residents

Moderate Adverse

Isolation of Ullanes West
Split Clonfadda Village
Decrease in passing trade along N22
Increase in travelling time for some residents
Sever the 'Curra'

Moderate Adverse

E++

Split Clonfadda Village
Decrease in passing trade along N22
Severance of roads to river

Moderate Adverse

E++

All routes would result in a loss of passing trade to business situated along the existing N22, however, appropriate signage on the Yellow route, which would run close to the existing N22 may mitigate this.

Demolition and Loss Of Amenity

Close proximity to residential property

Minor Adverse

D+

Close proximity to residential property.
The 'Curra' walking route crossed.

Minor Adverse

Close proximity to residential property

Minor Adverse

D+

The ‘Curra’ is a local road used as walking route between Clondrohid and Killaclug.

Agriculture

Landtake = 74.51
Beef, Sucklers and Sheep
Average land rating 2.4

Moderate Adverse

Landtake = 76.72
Beef, Sucklers and sheep. Some tillage
Average Land rating 2.3

Moderate Adverse

E+

Landtake = 78.03
Beef, Sucklers and sheep. Some tillage
Average Landrating = 1.8

Moderate Adverse

E++

The Yellow route would impact on the lowest quality land with the least landtake.

Mineral Resources

No Impact

No effect on quarrying operations

Construction Impacts

Construction of major river crossing and crossings of major and minor existing roads. A 4.75km length between the existing N22 and node 6 would be required to accommodate phasing of the works and construction of standalon Macroom bypass.

Major Adverse

F++

Construction of major river crossing and crossings of major and minor existing roads. A 1.5km length between the existing N22 and Node 5 would be required to accommodation phasing of the works and provide standalone Macroom bypass.
NOTE : Route is close to River Foherish in lower catchment area, therefore greater risk/impact due to possible pollution during construction

Major Adverse

Construction one major river crossing and disruption to traffic on major and minor existing roads, including N22

Major Adverse

F+

It has been assumed that the road project could be constructed in 3 phases. All routes would involve construction of a major river crossing and disruption to existing traffic.

+ indicates greater preference for route section.

OTHER INFORMATION*

Road Alignment

Relaxation to crest curves.
Good overtaking opportunities.
Limited by hilly terrain.

Scheme Cost Estimate (€/1000)

80,435

67,674

56,194

Construction Cost, Contingency, Land Cost and Design & Supervision excl. VAT

(includes €24,597k for the tie-in of the existing N22 to Node 6 for complete Macroom bypass)

(includes €6,819k for the tie-in of the existing N22 to Node 5 for complete Macroom bypass)

Traffic Figures

2024 AADT = NOT MODELLED

2024 AADT = 10,300

2024 AADT = 12,800

Standard single carriageway - Nodes 3 to 4a/5a.
Wide single carriageway - Nodes 4/5a to 6.
(see chapter 22).

Scheme length (km)

14.7

15.2 + 1.6 to complete Macroom bypass to N22

15.6

Demolition

No. of houses

No. of businesses

No. of properties:

within 0m - 50m

within 50m - 100m

within 100m - 200m

within 200m - 300m

138

No. of Crossings:

river/stream

national roads

regional roads

minor roads

farm accesses

No. of road bridges /underbridges

Earthworks:

Cut m3

1,006,300

1,091,500

833,700

fill m3

672,200

560,200

388,200

*Data taken from feasibility design - subject to amendment at later design stages.

A21.3 Nodes 6 to 16 (Northern Routes)

Node 6 - 16

Green

Red

Green/Link3/Red

Segments

Green (Nodes 6 to 16)

Yellow (Nodes 6 to 7)
Red (Nodes 7 to 14)
Green (Nodes 14 to 16)

Green (Nodes 6 to 9)
Link3 (Nodes 9 to 13)
Red (Nodes 13 to 14)
Green (Nodes 14 to 16)

IMPACT ASSESSMENT (with appropriate mitigation measures)

COMPARISON

Chapter Ref.

Comment

Impact

Comment

Impact

Comment

Impact

Landscape and Aesthetics

Passes through designated Lee Valley Area of Scenic Importance

Major Adverse

F+

Passes through scenic Lee Valley.
Although outside the designated Area of Scenic Importance, it would be visible from much of the length of the reservoir shores.
Affects views from long sections of scenic routes A39 and A38.
Affects views from Macroom.
Least affected visible from residential areas.

Major Adverse

Passes through designated Lee Valley Area of Scenic Importance.
Affects views from long sections of scenic route A39.
Visible from long sections of reservoir shores.

Major Adverse

The Green route passes along the reservoir shores for the shortest distance. The route that would take the proposed road closest to residential areas and for the greatest distance along the reservoir shores would have the greatest visual impact. On this basis, the order of preference for the routes would be: Green, Red, Green/Link/Red.

Cultural Heritage

Major impact 3 recorded Monuments
Major impact 1 potential site (AS)
Major impact 2 potential sites (LH)
Moderate impact 4 Rec Monuments
Moderate impact 7 built heritage sites
Moderate impact 2 potential sites (AS)
Minor impact 2 Recorded Monuments
Minor impact 3 built heritage sites
Minor impact 2 potential site (LH)
Moderate impact 4 AAP

Major Adverse

F+

Major impact 9 recorded Monuments
Major impact 2 built heritage sites
Moderate impact 19 Rec Monuments
Moderate impact 5 built heritage sites
Moderate impact 2 potential sites (AS)
Moderate impact 6 AAP
Minor impact 5 Recorded Monuments
Minor impact 3 built heritage sites
Minor impact 2 potential sites (AS)
Minor impact 2 potential sites (LH)

Major Adverse

Major impact 3 recorded Monuments
Major impact 1 potential site (AS)
Moderate impact 14 Rec Monuments
Moderate impact 3 built heritage sites
Moderate impact 4 AAP
Minor impact 1 Recorded Monument
Minor impact 6 built heritage sites
Minor impact 1 potential site (AS)

Major Adverse

F++

The red route has the least number of archaeological sites directly affected, but is the least preferred as it is in an area of high archaeological potential, due to the large number of sites in the area. This suggests a denser archaeological landscape and a greater potential for sub-surface archaeological sites. The Green/Link/Red route would be preferred as it would have a major impact on fewer monuments and sites than the Green route.

Surface Water Quality and Drainage

Crosses Class A Rivers (x2)
Crosses unclassified Rivers (x7)
Crosses Inniscarra Reservoir
Ltd increase in flood risk to agric land adj to Reservoir
Inc flood risk to properties adj to R. Bride

Major Adverse

F++

Crosses Class A Rivers (x2)
Crosses unclassified Rivers (x6)
Crosses Carrigadrohid Reservoir
Increased Flood risk to properties along Kame and Laney Rivers
Increased Flood risk to agric land
Inc flood risk to properties adj to R. Bride

Major Adverse

Crosses Class A Rivers (x1)
Crosses unclassified Rivers (x9)
Crosses Inniscarra Reservoir
Increased Flood risk to agric land
Increased Flood risk to agricultural land along Kame River
Inc flood risk to properties adj to R. Bride

Major Adverse

F+

All routes represent an increased risk of flooding to properties adj. to the River Bride for which suitable mitigation will be required. Both the Red and Green/Link/Red routes cross the Kame River and its floodplain., this represents an increased risk of flooding for properties for the Red route which is therefore least preferred.

Geology

Passes close to the closed landfill site at Shanakill, measures should be adopted to ensure that impact due to construction near the landfill is mitigated.

Moderate Adverse

Short length of high embankment (23.5m maximum).

Major Adverse

Short length of high embankment (23.5m maximum). Passes close to the closed landfill site at Shanakill, measures should be adopted to ensure that impact due to construction near the landfill is mitigated.

Major Adverse

The Green route has a shorter length of high embankment (15m maximum height). This route passes close to the closed landfill site at Shanakill.

Hydrogeology

Generally moderately productive with approx. 20% mod. Productive locally

Minor Adverse

Generally moderately productive. Western section generally unproductive

Minor Adverse

D+

Generally moderately productive with approx. 10% mod. Productive locally

Minor Adverse

Ecology

Large part of 1 site of high ecological value
Large part of 2 sites low ecological value
Small part 9 sites low ecological value

Major Adverse

F++

Large part of 1 site of high ecological value
Small part 2 sites of high ecological value
Large part of 5 sites low ecological value
Small part 5 sites low ecological value

Major Adverse

F+

Large part of 1 site of high ecological value
Small part 2 sites of high ecological value
Large part of 3 sites low ecological value
Small part 8 sites low ecological value

Major Adverse

All the routes must cross the river Bride which is one of the sites proposed for designation as an SAC by the Irish NGOs.

Air Quality

107 residential properties within 200m
4 commercial properties within 200m
Exceeds air quality standards between nodes 6-9 and 6-R618 junction) = 12.95km

Major Adverse

F++

146 residential properties within 200m
3 commercial properties within 200m
Exceeds air quality standards between nodes 7b-16) = 20.74km

Major Adverse

104 residential properties within 200m
3 commercial properties within 200m
Exceeds air quality standards at least between nodes 6-9 and 13-16) = 17.46km

Major Adverse

F+

Quality parameters for NO_x would be exceeded for the least distance on the Green route. The Green and the Green/Link/Red route also have the lowest numbers of properties along their length.

Noise and Vibration

166 residential properties within 300m
6 commercial properties within 300m
Noise levels increase by 24-25 dB

Major Adverse

257 residential properties within 300m
9 commercial properties within 300m (Canovee school within 200m)
Noise levels increase by 20-21 dB

Moderate Adverse

183 residential properties within 300m
6 commercial properties within 300m
Noise levels increase by 25dB nodes 6-9, increase by 21dB 13-16

Major Adverse

The Red route is likely to experience the lowest percentage increase in noise levels (from ambient), followed by the Green/Link/Red route and then Green route.

Planning

Crosses Lee Valley scenic & Rec area
Crosses Scenic Routes A38 & 39 (runs alongside A39)
Crosses Scientific Area D30
May conflict with policies to prevent sterilisation of mineral resources
Provides by-pass for Macroom, preserving the housing stock

Major Adverse

F++

Crosses Area Scientific Importance (D47)
Crosses scenic route A38
Crosses wooded picnic area nr Macroom
Affects Lee Valley shoreline and routes (but doesn't cross designated scenic area)
May conflict with policies to prevent sterilisation of mineral resources
Provides by-pass for Macroom, preserving the housing stock

Major Adverse

Crosses Lee Valley scenic & Rec area
Crosses Scenic Routes A38
Crosses Scientific Area D30
May conflict with policies to prevent sterilisation of mineral resources
Provides by-pass for Macroom, preserving the housing stock

Major Adverse

All the route options cross one or other of the Lee Valley reservoirs contravening Cork CC policies on preserving these shorelines and lakeside routes free from development. In addition to crossing the reservoirs, Red and Green/Link/Red routes run alongside the reservoir for a number of kilometres, such that a longer stretch of road would be visible from the opposite shoreline.

Socio-Economics

Separation of neighbouring communities Isolation of some residents
Reduction in passing trade in Coachford, N22 and Macroom
Increase in distance and journey time
(Major Impact if Aghavrin road is severed)

Major Adverse

Next to Bealick Mill Impact to setting of wooded picnic area (near Ummera) and Farran Woods
Increase in distance and journey time
Isolation of Monallig village
Reduction in passing trade in Macroom and N22

Moderate Adverse

E++

Isolation of some Residents.
Reduction in Macroom passing trade and N22.
Impact to setting of Farran Woods Increase in distance and journey time.

Moderate Adverse

E+

All routes will result in loss of passing trade currently attracted to businesses along the existing N22 and in the town of Macroom. The Green/Link/Red route would have the least effect on separation of communities. The Red route would result in increased visibility of the tourist attraction Bealick Mill from the National road, which may encourage tourists to stop in the area.

Demolition and Loss of Amenity

Close to residential property.
Close to Ambush Monument-may affect annual march.
May affect EMC car park.

Minor Adverse

Crosses southern boundary of Lee Valley Golf Course.
Close proximity to residential and commercial property
May affect EMC car park.

Moderate Adverse

Crosses southern boundary of Lee Valley Golf Course.
Close proximity to residential and commercial property
May affect EMC car park.

Moderate Adverse

All routes would be in close proximity to residential and commercial property and may affect the EMC car park where the scheme ties into the Ballincollig bypass. The Red and Green/Link3/Red routes cross the southern boundary of the Lee Valley Golf Course.

Agriculture

Landtake = 121.22
Average land rating = 4

Major Adverse

Landtake - 118.14
Average Land Rating = 3.3

Major Adverse

F++

Landtake 119.61
Average land rating = 3.9

Major Adverse

F+

The Green route would affect the highest quality land and would also have the greatest land-take. The Red route would affect the lowest quality land, and would have the lowest land-take.

Mineral Resources

Passes through two quarries.
Sterilises potential resources

Severe Adverse

Passes through two quarries

Severe Adverse

Passes through two quarries

Severe Adverse

The Green route would have an affect on Classis West and also sterilise areas of proposed extraction at O’Neil’s quarry near Clashanure.

Construction Impacts

Construction of more than one major river crossings and major disruption to traffic on existing major and minor roads, including N22. A 3km length of road between Nodes 6 and 7a would be required to accommodate phasing of the works and construction of stand-alone Macroom bypass.

Severe Adverse

G++

Construction of more than one major river crossing and major disruption to traffic on existing major and minor roads, including N22.
Highest impact assigned to this route due to the greatest degree of construction required close to the shores and within the immediate catchment of the Reservoir(s)

Severe Adverse

Construction of more than one major river crossing and major disruption to traffic on existing major and minor roads, including N22

Severe Adverse

G+

It has been assumed that the road project could be constructed in 3 phases. Green route is preferred route as there is the least degree of construction required close to the shores of the Reservoir(s)

+ indicates greater preference for route section.

OTHER INFORMATION*

Road Alignment

Relaxations to horizontal & vertical.
Limited by hilly terrain and at tie-in to Ballincollig bypass.
Good overtaking opportunities.

Scheme Cost Estimate (€/1000)

140,971

131,037

125,026

Construction Cost, Contingency, Land Cost and Design & Supervision excl. VAT

(including €16,583k to complete the Macroom Bypass Nodes 6 to 7a)

(including €5,785k to complete the Macroom Bypass Nodes 7 to 7a)

(including €16,583k to complete the Macroom Bypass Nodes 6 to 7a)

Traffic Figures

Macroom to Coachford: 2024 AADT = 15,100
Coachford to Ovens: 2024 AADT = 12,500

Macroom to Coachford: 2024 AADT = 16,300
Coachford to Ovens: 2024 AADT = 13,000

2024 AADT = NOT MODELLED

Wide single carriageway. (see chapter 22).

Scheme length (km)

24.3 + 2.9 to complete the Macroom Bypass Nodes 6 to 7a

23.7 + 0.9 to complete the Macroom Bypass Nodes 7 to 7a

23.9 + 2.9 to complete the Macroom Bypass Nodes 6 to 7a

Demolition:

No. of houses

No. of businesses

No. of properties:

within 0m - 50m

within 50m - 100m

within 100m - 200m

within 200m - 300m

111

No. of Crossings:

river/stream

national roads

regional roads

minor roads

farm accesses

No. of road bridges /underbridges

Earthworks:

Cut m3

1,387,400

515,900

419,100

fill m3

222,000

1,178,400

914,300

*Data taken from feasibility design - subject to amendment at later design stages.

A21.4 Nodes 6 to 11 (Southern Routes)

Node 6 - 11

Yellow

Yellow/Link4/Blue

Blue

Segments

Yellow (Nodes 6 to 11)

Yellow (Nodes 6 to 8)
Link4 (Nodes 8 to 10)
Blue (Nodes 10 to 11)

Yellow (Nodes 6 to 7)
Red (Nodes 7 to 7b)
Blue (Nodes 7b to 11)

IMPACT ASSESSMENT (with appropriate mitigation measures)

COMPARISON

Chapter Reference

Comment

Impact

Comment

Impact

Comment

Impact

Landscape and aesthetics

Affects views from Macroom & Lissardagh
Crosses scenic Lee Valley
Roads already a feature of landscape

Major Adverse

F++

Affects views from Macroom
Crosses scenic Lee Valley

Major Adverse

F+

Affects views from Macroom
Crosses scenic Lee Valley
Affects views from scenic route A39

Major Adverse

All routes cross the Lee Valley in an area, which is not designated but is an important landscape area. The Yellow route would affect views from Macroom and Lissarda, although roads are already a feature of the landscape in this area.

Cultural Heritage

Major impact 3 recorded Monuments
Major impact 1 built heritage sites
Moderate impact 2 Rec Monuments
Moderate impact 5 built heritage sites
Moderate impact 2 potential sites (AS)
Moderate impact 3 AAP
Minor impact 3 Recorded Monuments
Minor impact 3 built heritage sites
Minor impact 1 potential site (AS)

Major Adverse

Major impact 4 recorded Monuments
Major impact 1 built heritage site
Moderate impact3 Rec Mon
Moderate impact 6 built heritage
Moderate impact 3 potential sites (AS)
Moderate impact 3 AAP
Minor impact 5 Recorded Monuments
Minor impact 1 built heritage site

Major Adverse

Major impact 3 recorded Monuments
Major impact 2 built heritage site
Major impact on 4 potential site (AS)
Moderate impact 8 Rec Mon
Moderate impact 2 built heritage
Moderate impact 3 potential sites (AS)
Moderate impact 2 AAP
Minor impact 7 Recorded Monuments
Minor impact 1 built heritage site

Major Adverse

The Blue route through Mashanaglass would impact upon a large area of high archaeological potential along with many sites and monuments. Yellow and Yellow/Link4/Blue routes would affect similar numbers of sites, although the Yellow/Link4/Blue route would affect slightly more.

Surface Water Quality and Drainage

Crosses Class A river (x3).
Crosses unclassified river (x3).
Cross Carrigadrohid Reservoir.
Local & ltd changes to flood risk to agric land.

Major Adverse

F++

Crosses Class A river (x3)
Crosses unclassified river (x6) (Bride tributaries)
Cross Carrigadrohid Reservoir
Potential for flooding of properties
Local & ltd changes to flood risk to agric land

Major Adverse

Crosses Class A river (x1)
Crosses unclassified river (x6) (Bride tribs)
Cross Carrigadrohid Reservoir
Potential for flooding of two properties
Local & ltd changes to flood risk to agric land

Major Adverse

All routes cross the Carrigadrohid reservoir. The Blue and Yellow/Link4/Blue routes have potential to affect flooding to properties, with Yellow/Link4/Blue having the potential to affect the greatest number of properties.

Geology

Has a length of very high embankment and would result in a large fill material import requirement.

Major Adverse

Results in a slight deficit of material and passes though a short length of soft ground.

Major Adverse

F+

Good cut and fill balance and does not go through any soft ground.

Moderate Adverse

Hydrogeology

70% generally mod productive; 10% karst; 20% generally unproductive

Minor Adverse

70% generally mod productive; 10% karst; F0% generally unproductive

Minor Adverse

15% generally unproductive; 85% generally moderately productive

Minor Adverse

D+

Ecology

Small part 2 sites high ecological value
Large part 3 sites low ecological value
small part 5 sites low ecological value

Moderate Adverse

E+

Small part 2 sites high ecological value
Large part 5 sites low ecological value
small part 3 sites low ecological value

Moderate Adverse

Large part 1 site high ecological value
Small part 1 sites high ecological value
Large part 3 sites low ecological value
small part 2 sites low ecological value

Major Adverse

All routes would pass through 2 sites of high or potentially high ecological value. However, whereas the Yellow and Yellow/Link/Blue routes would take small sections of these sites only, the Blue route would impact on a large part of a coniferous and deciduous woodland (Area 55d).

Air Quality

134 residential properties within 200m
11 commercial properties within 200m
Exceeds air quality standards between nodes 7a and 11 = 10.41km

Major Adverse

111 residential properties within 200m
4 commercial properties within 200m
Exceeds air quality standards between at least nodes 7a-8, 10-11 = 6.44km

Major Adverse

F+

55 residential properties within 200m
2 commercial properties within 200m
Exceeds air quality standards between nodes 7b-11 = 10.39km

Major Adverse

F++

All routes would exceed quality standards for NO_xbetween nodes 7a/7b and node 11. The Yellow route has the greatest number of properties along its length.

Noise and Vibration

199 residential properties within 300m
17 commercial properties within 300m (Canovee school within 200m)
Noise levels decrease by 3-4 dB

Major Beneficial

B+

172 residential properties within 300m
10 commercial properties within 300m (Canovee school within 200m)
Noise levels decrease by 3dB nodes 6-8, increase by 25 dB nodes 10-11

Minor Adverse

D+

103 residential properties within 300m
3 commercial properties within 300m
Noise levels increase by 25 dB

Moderate Adverse

Planning

Crosses Area of Scientific Interest (D47)
Crosses Scenic route A38
Provides a by-pass for Macroom, preserving the housing stock
Affects Lee Valley shoreline

Major Adverse

Crosses Area of Scientific Interest (D47)
Crosses Scenic route A38
Provides a by-pass for Macroom, preserving the housing stock
Affects Lee Valley shoreline

Major Adverse

Crosses Area of Scientific Interest (D47)
Crosses Scenic route A38
Provides a by-pass for Macroom, preserving the housing stock
Affects Lee Valley shoreline (shorter than yellows)

Major Adverse

F++

All the routes cross one or other of the Lee Valley reservoirs contravening Cork CC policies on preserving these shorelines and lakeside routes free from development. In addition to crossing the reservoirs, the Yellow route runs alongside the reservoir for a number of kilometres, such that a longer stretch of road would be visible from the opposite shoreline

Socio Economics

Next to Bealick Mill which would increase its visibility to passing tourist traffic.
Isolation of some residents.
Increase in distance and journey time

Moderate Adverse

Next to Bealick Mill which would increase its visibility to passing tourist traffic.
Reduction in trade - Macroom & N22.
Isolate 2 small communities.
Increase in distance and journey time.

Moderate Adverse

F+

Next to Bealick Mill which would increase its visibility to passing tourist traffic.
Isolation of Mashanaglass.
Increase in distance and journey time.

Major Adverse

The Blue route would isolate the greatest number of residents, notably the communities at Mashanaglass. All routes would result in a loss of passing trade to businesses in Lissarda and along the existing N22, appropriate signage along the Yellow route, and to a lesser extent the Yellow/Link4/Blue route, may mitigate this.

Demolition and loss of amenity

Close proximity to residential and commercial property.
Close to Bealick Mill.

Minor Adverse

Close proximity to residential and commercial property.
Close to Bealick Mill.

Minor Adverse

Demolition of one residential property.
Close proximity to residential and commercial property.
Close to Bealick Mill.

Moderate Adverse

All routes would be in close proximity to existing residential and commercial property and pass close to Bealick Mill. The Blue route would also require demolition of one residential property.

Agriculture

Landtake = 79.93
Average land rating =3.2

Moderate Adverse

Landtake =79.11
Average land rating = 2.9

Moderate Adverse

E+

Landtake = 70.24
Average land rating = 2.9

Moderate Adverse

E++

The quality of land affected by the Blue and the Yellow/Link4/Blue route would be similar, and lower than that affected by the Yellow route. The Yellow route would also have the greatest land-take and would be the least preferred.

Mineral Resources

No Impact

No effect on quarrying operations.

Construction Impacts

Construction of more than one major river crossing and disruption to traffic on existing major and minor roads, including N22

Severe Adverse

G+

Construction of more than one major river crossing and disruption to traffic on existing major and minor roads, including N22

Severe Adverse

Construction of more than one major river crossing and disruption to traffic on existing major and minor roads, including N22

Severe Adverse

G++

The Yellow/Link/Blue route requires the greatest degree of construction close to the shores of the Reservoir(s) and the greatest disruption to traffic on the N22 and other existing major roads. The Blue route require the least degree of construction close to these shores and the least disruption to traffic.

+ indicates greater preference for route section.

OTHER INFORMATION*

Road Alignment

Relaxations to horizontal & vertical.
Limited by existing development
Good overtaking opportunities.

Scheme Cost Estimate (€/1000)

89,708

95,357

93,688

Construction Cost, Contingency, Land Cost and Design & Supervision excl. VAT

(includes €5,785 to complete Macroom bypass nodes 7 to 7a)

Traffic Figures

2024 AADT = 16,400

2024 AADT = NOT MODELLED

2024 AADT = 16,400

Wide single carriageway. (see chapter 22).

Scheme length (km)

13.3

13.2

12.2 + 0.9 to complete Macroom bypass nodes 7 to 7a

Demolition

No. of houses

No. of businesses

No. of properties

within 0m - 50m

within 50m - 100m

within 100m - 200m

177

within 200m - 300m

114

No. of Crossings:

river/stream

national roads

regional roads

minor roads crossed

farm accesses

No. of road bridges/underbridges

Earthworks:

Cut m3

1,216,240

858,540

958,900

fill m3

755,800

789,000

450,600

*Data taken from feasibility design - subject to amendment at later design stages

A21.5 Nodes 11 to 16 (Southern Routes)

Node 11 - 16

Yellow

Blue

Yellow/Link6/Blue

Segments

Yellow (Nodes 11 to 16)

Blue (Nodes 11 to 15)
Yellow (Nodes 15 to 16)

Yellow (Nodes 11 to 12)
Link6 (Nodes 12 to 12a)
Blue (Nodes 12a to 15)
Yellow (Nodes 15 to 16)

IMPACT ASSESSMENT (with appropriate mitigation measures)

COMPARISON

Chapter Reference

Comment

Impact

Comment

Impact

Comment

Rank

Landscape and aesthetics

Route passes close to Farnanes
Route crosses part of Bride Valley
Roads already a significant feature of landscape.

Major Adverse

F++

Route passes close to Killumney, Cloughduv and Aherla
Route passes through whole length of Bride Valley

Major Adverse

Route passes close to Killumney
Route crosses through part of Bride Valley

Major Adverse

F+

The Yellow and Yellow/Link/Blue crosses though the Bride Valley between nodes 12 and 15 west of Ovens. The Blue route will affect views from Killumney, Cloughduv and Aherla and is therefore the least preferred.

Cultural Heritage - Archaeology

Moderate impact 2 Rec Monuments
Moderate impact 2 built heritage sites
Moderate impact 2 AAP
Minor impact 1 Recorded Monument
Minor impact 6 built heritage sites
Minor impact 1 potential site (AS)

Moderate Adverse

Major impact 2 rec Monuments (1= Kilcrea)
Major impact 1 potential site (AS)
Moderate impact 4 Rec Monuments
Moderate impact 4 built heritage sites
Moderate impact 5 AAP
Minor impact 2 built heritage site
Minor impact 1 potential site (AS)

Major Adverse

Moderate impact 2 Rec Monuments
Moderate impact 2 built heritage sites
Moderate impact 2 AAP
Minor impact 1 Recorded Monument
Minor impact 5 built heritage sites
Minor impact 1 potential site (AS)

Moderate Adverse

The proximity of the Blue route to Kilcrea Friary and graveyard would seriously compromise/affect the setting of this nationally important site.

Surface Water Quality

Crosses Class A River Bride (x1)
Crosses unclassified rivers (x6)
Widespread inc in flood risk to agric land & no. of properties close to Bride

Major Adverse

F+

Crosses Class A River Bride (x2)
Crosses Class B/C River Bride (x1)
Crosses unclassified rivers (x7)
Inc flood risk in Crookstown and to other properties along the Bride

Major Adverse

Crosses Class A River Bride (x1)
Crosses unclassified rivers (x6)
Widespread inc in flood risk to agric land & no. of properties close to Bride

Major Adverse

F+

All routes represent a widespread increase in flood risk to agricultural land and a number of properties close to the River Bride. It is likely that the effects on flood risk can be more easily mitigated on the Blue route than the Yellow or Yellow/Link/Blue routes.

Geology

Requires importation of additional fill material for embankment construction, required in order to maintain road surfaces above flood levels.

Major Adverse

Crosses over soft ground.

Major Adverse

Requires importation of additional fill material for embankment construction, required in order to maintain road surfaces above flood levels.

Major Adverse

Hydrogeology

Moderately productive locally to the west; karst and fissure flow to the east

Moderate Adverse

karst and fissure flow

Major Adverse

Moderately productive locally to the west; karst and fissure flow to the east

Moderate Adverse

Ecology

Small part of 1 site high ecological value
Large part of 2 sites low ecological value
small part of 5 sites low ecological value
River Bride crossing
Alongside R. Bride

Major Adverse

F**

Large part of 1 site high ecological value
Large part of 2 sites low ecological value
small part of 8 sites low ecological value
River Bride crossing x 3
Alongside R. Bride

Major Adverse

Small part of 1 site high ecological value
small part of 7 sites low ecological value
River Bride crossing
Alongside R. Bride

Major Adverse

Between Nodes 11 and 16, the Yellow route crosses fewer of the Bride tributaries than the Blue route. Similarly, the relative distance between the Yellow route and the River Bride is greater. The Yellow and the Yellow/Link/Blue routes would take only a small part of an area of high or potentially high ecological value, the Blue route would take a large part of a marshy grassland site (Area 73).

Air Quality

150 residential properties within 200m
13 commercial properties within 200m
Exceeds air quality standards between nodes 11-16 = 13.67km

Major Adverse

107 residential properties within 200m
14 commercial properties within 200m
Exceeds air quality standards between nodes 11-16 = 14.01 km

Major Adverse

F++

131 residential properties within 200m
13 commercial properties within 200m
Exceeds air quality standards between at least nodes 11-12 & 12a-16 = 12.49 km

Major Adverse

F++

Both the Yellow and the Blue route would exceed quality standards for NO_x between nodes 11 and 16. The Yellow/Link6/Blue route is assumed to also exceed NO_x quality standards for this section, although no traffic, and hence no air quality data, is available for this section of route. The Yellow route has the greatest number of properties along its length.

Noise and Vibration

199 residential properties within 300m
19 commercial properties within 300m
(Knockanemore School within 200m, Eire Og GAA & St John's Church within 300m)
Noise levels decrease by 3 dB for a short section, increase by 25 dB for remainder

Minor Adverse

183 residential properties within 300m
15 commercial properties within 300m (Cloughduv School & St Joseph's Church within 200m) school within 200m)
Noise levels increase by 25 dB

Moderate Adverse

178 residential properties within 300m
14 commercial properties within 300m (Cloughduv School & St Joseph's Church within 200m) school within 200m)
Noise levels decrease by 3dB nodes 11-12, increase by 25 dB 12a-16

Moderate Adverse

Planning

Crosses area rich in gravel deposits (deep north vein)
Scientific Area D30

Major Adverse

Area rich in gravel deposits
Scientific Area D30

Moderate Adverse

Area rich in gravel deposits (mostly avoid as stick to original alignment -shorter distance)
Scientific Area D30

Major Adverse

All the routes cross notable areas of productive mineral deposits which may be sterilised, conflicting with Cork C.C. policies to protect mineral resources in the county. The Blue route would traverse the significantly shallower southern vein than the Yellow and Yellow/Link6/Blue routes

Socio Economics

Splits village near Kilcrea.
Crosses Carrigane Quarry.
Reduction in N22 passing trade.
Isolation of some residents.
Increase in distance and journey time.

Major Adverse

Severance of roads to Knockanemore and Donovan Pit.
Reduction in N22 passing trade.
Increase in distance and journey time.

Major Adverse

Splits village near Kilcrea.
Severance of roads to Knockanemore and Donovan Pit.
Reduction in N22 passing trade.
Increase in distance and journey time.

Major Adverse

All routes would cause some separation for a number of properties in the Carrigane area east of Ovens.

Demolition and loss of Amenity

Close to residential property.
Crosses car parking and temporary buildings close to EMC.

Moderate Adverse

Close to residential property.
Crosses car parking and temporary buildings close to EMC.

Moderate Adverse

Close to residential property.
Crosses car parking and temporary buildings close to EMC.

Moderate Adverse

Agriculture

Landtake = 82.03
Average land rating =3.5

Major Adverse

Major Adverse Impact
Landtake = 84.03
Average land rating = 3.1

Major Adverse

F++

Landtake = 83.64
Average land rating = 3.3

Major Adverse

F+

The Blue route would affect the lowest quality land, and so despite the fact that it would have a greater land-take than the Yellow route, it would be preferred.

Mineral Resources

Sterilises two potential areas of mineral extraction

Severe Adverse

Sterilises two potential areas of mineral extraction. Possible safety implications from blasting

Severe Adverse

Sterilises an area of potential mineral deposits.

Severe Adverse

The Yellow and the Yellow/Link/Blue routes would potentially have the most impact on mineral resources, as both these routes cross the deeper northern gravel deposits. In contrast, the Blue route traverses the shallower southern deposits. The Yellow route will affect more existing and potential quarrying activity including some deeper gravel deposits close to Knockanemore.

Construction Impacts

Construction of major river crossing and disruption to traffic on existing major and minor roads, including N22

Major Adverse

F+

Construction of more than one major river crossing and major disruption to traffic on existing major and minor roads, including N22

Severe Adverse

Construction of major river crossing and disruption to traffic on existing major and minor roads, including N22. Route is closer to the Bird River than the Yellow route

Major Adverse

+ indicates greater preference for route section.

OTHER INFORMATION*

Engineering Relaxations and Departures

Relaxations to horizontal & vertical.
Limited by existing development and tie-in to Ballincollig bypass
Good overtaking opportunities.

Relaxations to horizontal & vertical.
Limited by existing development and tie-in to Ballincollig bypass
Good overtaking.

Scheme Cost Estimate (€/1000)

55,297

61,763

55,724

Construction Cost, Contingency, Land Cost and Design & Supervision excl. VAT.

Traffic Figures

2024 AADT = 15,000

2024 AADT = 14,800

2024 AADT = NOT MODELLED

Wide single carriageway. (see chapter 22).

Scheme length (km)

13.7

140.0

13.8

Demolition:

No. of houses

No. of businesses

No of properties

within 0m - 50m

within 50m - 100m

within 100m - 200m

within 200m - 300m

No. of Crossings

river/stream

national roads

regional roads

minor roads

farm accesses

No. of road bridges /underbridges

Earthworks:

Cut m3

367,400

201,000

451,100

fill m3

193,900

255,600

221,100

Data taken from feasibility design - subject to amendment at later design stages.

A21.6 Nodes 6 to 16 (Preferred Northern and Southern Routes)

Nodes 6 - 11

Green

Yellow

Segments

Green (Nodes 6 to 16)

Yellow (Nodes 6 to 16)

IMPACT ASSESSMENT (with appropriate mitigation measures)

COMPARISON

Refer to Chapter

Comments

Impact

Comment

Impact

Landscape and Aesthetics

Passes through designated Lee Valley Area of Scenic Importance

Major Adverse

Affects views from Macroom & Lissardagh & Farnanes
Crosses scenic Lee Valley and part of Bride Valley
Roads already a significant feature of landscape.

Major Adverse

F+

The Green route would require a longer reservoir crossing which would dominate the landscape. The Yellow route is preferred as the existing road is already a significant feature of the landscape.

Cultural Heritage

Major Adverse

F+

Major impact 3 recorded Monuments
Major impact 1 built heritage sites
Moderate impact 4 Rec Monuments
Moderate impact 7 built heritage sites
Moderate impact 2 potential sites (AS)
Moderate impact 5 AAP
Minor impact 4 Recorded Monuments
Minor impact 8 built heritage sites
Minor impact 2 potential site (AS)

Major Adverse

Similar comparison, Green assessed as slightly less impact.

Surface Water Quality and Drainage

Crosses Class A Rivers (x2)
Crosses unclassified Rivers (x7)
Crosses Inniscarra Reservoir
Ltd increase in flood risk to agric land adj to Reservoir
Inc flood risk to properties adj to R. Bride

Major Adverse

F++

Crosses Class A river (x4) (including Bride)
Crosses unclassified river (x9)
Widespread inc in flood risk to agric land & no. of properties close to Bride
Cross Carrigadrohid Reservoir

Major Adverse

The Yellow route assessed as slightly more impact due to the greater length of the Bride that could be affected by construction and accidental spillages.

Geology

Passes close to the closed landfill site at Shanakill, measures should be adopted to ensure that impact due to construction near the landfill is mitigated.

Moderate Adverse

Major Adverse Impact

Major Adverse

The Yellow route would require the import of fill material

Hydrogeology

Generally moderately productive with approx. 20% mod. Productive locally

Minor Adverse

Moderately productive flow with some karst.

Moderate Adverse

The Green route is seen as less impact as it does not cross the karst feature

Ecology

Large part of 1 site of high ecological value
Large part of 2 sites low ecological value
Small part 9 sites low ecological value

Major Adverse

F++

Small part 3 sites high ecological value
Large part 5 sites low ecological value
small part 10 sites low ecological value
River Bride Crossing

Moderate Adverse

The routes are similar in effect with the Green route preferred as it would generally avoid the River Bride.

Air Quality

107 residential properties within 200m
4 commercial properties within 200m
Exceeds air quality standards between nodes 6-9 and 6-R618 junction) = 12.95km

Major Adverse

F++

284 residential properties within 200m
24 commercial properties within 200m (Canovee school within 200m)
Exceeds air quality standards between nodes 7a and 16 = 24.08km

Major Adverse

There are a greater number of properties close to the Yellow route which has a detrimental affect.

Noise and Vibration

166 residential properties within 300m
6 commercial properties within 300m
Noise levels increase by 24-25 dB

Major Adverse

398 residential properties within 300m
35 commercial properties within 300m (Canovee school within 200m & Eire Og GAA & St John's Church within 300m)
Noise levels decrease by 3-4 dB

Major Beneficial

B+

As the existing route runs along the edge of the bride valley the noise increase is much less for the Yellow route

Planning

Major Adverse

F++

Crosses Areas of Scientific Interest (D30 & D47)
Crosses Scenic route A38
Provides a by-pass for Macroom, preserving the housing stock
Affects Lee Valley shoreline
Crosses deep north gravel vein & conflicts with policies to prevent sterilisation of mineral resource

Major Adverse

The affect on the reserves in the Bride valley make the Yellow route less preferable than the Green.

Socio-Economics

Major Adverse

Next to Bealick Mill
Crosses Carrigane Quarry
Splits village near Kilcrea
Reduction in N22 passing trade
Isolation of some residents
Increase in distance and journey time

Major Adverse

F+

Major impact on communities on both routes. Seen as slightly more impact on the Green route due its more rural setting.

Demolition and Loss of Amenity

Close to residential property.
Close to Ambush Monument-may affect annual march.
May affect EMC car park.

Minor Adverse

Close to residential property.
Crosses car parking and temporary buildings close to EMC.
Close to Bealick Mill.

Moderate Adverse

Agriculture

Landtake = 121.22
Average land rating = 4

Major Adverse

Landtake = 161.96ha
Average land rating =3.3
(Impact mostly moderate, although major impact over short sections to east)

Moderate Adverse

The land affected by the Yellow route is of lower quality than that affected by the Green route.

Mineral Resources

Passes through two quarries.
Sterilises potential resources

Severe Adverse

Sterilises two potential areas of mineral extraction,

Severe Adverse

Similar impacts from both routes.

Construction Impacts

Construction of more than one major river crossings and major disruption to traffic on existing major and minor roads, including N22
NOTE: Fewer major river crossings and significantly less disruption to traffic using existing major routes, particularly the N22

Severe Adverse

G+

Construction of more than one major river crossings and major disruption to traffic on existing major and minor roads, including N22
NOTE: Construction within Bride Valley presents significant risk of impact on river during construction of crossings, culverts and also earthworks. Close proximity to existing N22 alignment will result in significant disruption to traffic on this and other existing major routes.

Severe Adverse

Similar impacts from both routes.

+ indicates greater preference for route section.

OTHER INFORMATION*

Road Alignment

Relaxations to horizontal & vertical.
Limited by hilly terrain and at tie-in to Ballincollig bypass.
Good overtaking opportunities.

Relaxations to horizontal & vertical.
Limited by existing development and tie-in to Ballincollig bypass
Good overtaking opportunities.

Scheme Cost Estimate (€/1000)

140,971

145,005

Construction Cost, Contingency, Land Cost and Design & Supervision excl. VAT.
The Yellow route is slightly more expensive than the Green due to the greater length. For the same reason Green has better economics.

(including €16,583k to complete the Macroom Bypass Nodes 6 to 7a)

Traffic Figures

Macroom to Coachford: 2024 AADT = 15,100
Coachford to Ovens: 2024 AADT = 12,500

Macroom to Crookstown: 2024 AADT = 16,400
Crookstown to Ovens: 2024 AADT = 15,000

Both wide single carriageway. (see chapter 22).
More traffic on the Yellow route.

Scheme length (km)

24.3 + 2.9 to complete the Macroom Bypass Nodes 6 to 7a

27.1

Demolition:

No. of houses

No. of businesses

No. of properties:

within 0m - 50m

within 50m - 100m

138

within 100m - 200m

267

within 200m - 300m

163

No. of Crossings:

river/stream

national roads

regional roads

minor roads

farm accesses

No. of road bridges /underbridges

Earthworks:

Cut m3

1,387,400

1,583,640

fill m3

222,000

949,700

*Data taken from feasibility design - subject to amendment at later design stages.

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