Post on 20-May-2020
transcript
Structure Name: Sulby Bridge (SN 1019)
Location: Sulby
Description:
The Sulby River Bridge carries the A3 main road over the Sulby River. The structure is a steel
beam and concrete jack arch bridge seated on large concrete abutments. The paint system
applied to the steelwork is failing and there are large areas of rust showing on the beams.
Proposed works:
Blast clean steelwork and apply new paint system.
3
Structure Name Kewaigue River Bridge (SN 1049)
Location Kewaigue
Description:
Kewaigue River Bridge is a masonry arch with a concrete box culvert extension and carries
Kewaigue Hill over Middle River. The arched section is suffering from scour in the apron and
there is a large void needing infilling.
Proposed Work:
Repair scour damage to downstream apron within arch and fill void with concrete.
4
Structure Name: Alfred Pier (SN 2367)
Location: Port St Mary Harbour
Description:
The Alfred Pier provides essential protection to Port St Mary harbour including shelter for fishing
boats, leisure craft and the RNLI lifeboat. The outer face requires extensive concrete repairs and
repairs to the wave return. The parapet has numerous areas of missing render and needs
refurbishing. The deck has cracks along its entire surface and needs replacing.
Proposed Works:-
Phase 1 (External face)
Provide a sprayed concrete surface to the entire outer face of the pier to give long term
strengthening and protection to the pier. This will include local repairs to the wave return and
parapet.
Phase 2 (Replacement deck)
Excavate approximately 2600m² of existing deck and replace in bays of reinforced concrete. This
is programmed to be split into four phases.
5
Structure Name: The Groyne (SN 2322)
Location: Peel Harbour
Description:
The Groyne at Peel harbour protects the foreshore from erosion and ensures that beach sand is
not lost through the process of longshore drift. The groyne is a concrete structure in poor repair
with large areas of undermining and some settlement evident and is in need of substantial
refurbishment.
Proposed Works:-
The groyne is to be partially reconstructed. The undermined areas are to be underpinned and
part of the deck is to be re-cast in new concrete.
6
Structure Name: Port Grenaugh River Wall (SN 5644)
Location: Port Grenaugh
The south river wall at Port Grenaugh supports a public right of way and has become badly
undermined by erosion causing part of the wall to collapse. It is intended to reconstruct the stone
wall with precast concrete blocks.
Proposed Works:
Demolish existing wall and reconstruct in pre cast concrete blocks
7
Structure Name: Apostles Bridge & Duck Pond (SN 2399)
Location Castletown Harbour
Description:
Apostles Bridge is a public footbridge above a weir. The weir currently has three timber bungs in
place that can be removed to allow the upstream duck pond to be drained. Access to the bungs
is difficult and the bungs do not provide enough capacity to fully drain the duck pond. A more
suitable method of draining the pond is to be provided to enable dredging works to be easily
undertaken.
Proposed Works:-
Construct three new openings within the weir in more suitable locations with easily accessible
penstocks that are large enough to fully drain the pond. The pond will then be dredged of
unwanted material.
8
Structure Name: Port Erin Boat Park
Location Port Erin Harbour
Description:
The boat park currently has a very uneven surface with poor drainage and the paved walkways
and steps are also in poor condition.
Proposed Works:-
It is intended to improve the boat park by providing a more suitable surface with improved
drainage and better power and water facilities. The work will also include reconstructing the
damaged steps and footpaths and stabilisation works to an adjacent embankment.
9
Structure Name: Ballakillingan Footbridge (SN 2608)
Location: Kirk Maughold
Description:
The footbridge at Ballakillingan is constructed as a tubular steel truss and deck formed in four
sections bolted together. The structure is in need of refurbishment and maintenance work that
will involve replacing all of the bolted connections.
Proposed works:
Remove bridge from site for blasting and painting. Replace all bolted connections
10
Structure Name: Douglas Sea Wall (SN 1526, 1527, 1528, 1529)
Location: Douglas Bay
Description:
Douglas Promenade sea wall is approximately three kilometres long varying in height from 1m –
6m and is in need of major refurbishment.
Proposed works:
Refurbish the entire promenade wall using localised concrete repairs. Reconstruct damaged steps
and slipways. Reconstruct damaged wave returns.
11
Structure Name: Peveril Jetty (SN 2224)
Location: Adjacent Sea Terminal Building, Douglas
Description:
Peveril Jetty is a mass concrete jetty that is now in very poor repair. Although no longer in use it
does provide some protection from wave action to Douglas beach and as such should be
retained. The jetty has now become a dangerous structure and there is concern about children
swimming around it becoming trapped.
Proposed works:
It is proposed to reconstruct some of the steps on the structure and to fill in the large holes
within the deck and sides. An additional set of steps is to be constructed at the top of the
structure. These works are to ensure that anyone on or around the jetty is not harmed by a
collapse and will have an escape access if trapped by the tide.
12
Structure Name Patrick Road Retaining Wall (SN 5583)
Location St Johns
Description:
A Manx stone wall running along the River Neb and supporting the A30 highway. The wall has
recently failed causing the edge of the road to collapse.
Proposed works:
Take down approximately 54m of damaged wall and replace with a new reinforced concrete
retaining wall and Manx stone parapet wall.
13
Structure Name Office Berth (SN 2221)
Location Douglas Harbour
Description:
The Office Berth is a working harbour berth used on a daily basis by the Steam Packet Co. The
surface of the deck has broken up and is in very poor condition and in need of reconstruction.
Proposed works:
Excavate the damaged area and construct a new reinforced concrete deck.
14
Structure Name Saltworks Quay (SN 2286)
Location Ramsey Harbour
Description:
Saltworks Quay is a boat park with poor facilities and bad drainage. The surface of the deck is in
very poor condition with numerous pot holes.
Proposed works:
Excavate the existing fill and construct a new reinforced concrete deck with improved drainage.
Provide new power and water pedestals.
15
Structure Name Ronaldsway Slipway
Location Derbyhaven
Description:
The existing slipway at Derbyhaven is located at the end of the promenade and has shared use
by yacht owners and the airport emergency vehicles. Its orientation and location away from the
emergency vehicles exit at the airport is considered to be too far away and somewhat awkward
for use. It is proposed to construct a new slipway in a more suitable location and orientation
Proposed works:
Construct a new slipway directly opposite the emergency vehicle exit to provide a better beach
access for emergency vehicles.
16
Structure Name: Battery Pier (SN 2212)
Location: Douglas Harbour
Description
The deck of the pier at the root is in very poor condition and needs excavating to allow a new
concrete deck to be provided.
Proposed Works:
Resurface deck area at root of pier with new concrete slab (approx. 1000m2)
17
Structure Name: Mountain Mile Retaining Wall (SN 5669)
Location: TT Course, Mountain Mile
Description
The existing embankment along Mountain Mile has collapsed over a 30m length and requires
reconstructing.
Proposed Works:
Place a new 30m long x 2m high gabion basket wall at the toe of the embankment and re-grade
the fill to a safe angle of repose.
18
Structure Name: Hango Hill Sea Wall (SN 1513)
Location: Castletown Promenade
Description
The existing embankment adjacent to Hango Hill is collapsing and in need of strengthening
Proposed Works:
Remove soil fill from the top of the stone embankment in front of the Manx stone wall and
construct a new stepped concrete wall to stabilise the wall and protect the highway.
19
Structure Name: Patrick Road Bridge (SN 1084)
Location: Patrick
Description
Patrick Road Bridge crosses the River Neb and has suffered from severe scour of its apron and
the side walls. A temporary repair was undertaken at the end of last year to halt further erosion
and now a permanent repair is required.
Proposed Works:
The large voids are to be backfilled with stone and a new reinforced concrete slab constructed to
span between the walls at bed level. The wing walls are to be protected by placing large pre-cast
concrete blocks against both the upstream and downstream embankments.
20
Structure Name: Mullen-E-Quinney Bridge (SN 1075)
Location: Old Castletown Road
Description
Mullen-E-Quinney Bridge is at the bottom of Old Castletown Road and creates a narrowing of the
road to a single carriageway width. The bridge deck is in poor condition and needs to be
replaced.
Proposed Works:
Strengthen the bridge and extend its width to provide two lanes of traffic with a pedestrian
footpath.
21
Structure Name: Grove Mount Retaining Wall (SN 5658)
Location: Grove Mount, Ramsey
Description
Timber stob structure retaining Grove Mount Road. The timber stobs are out of alignment and
the road above is beginning to slump.
Proposed Works
Provide a new retaining structure to support Windsor Mount Road.