Projects

The project entailed the construction of a 104m steel bridge over the River Shannon through Athlone Town Centre, associated ramps and boardwalks, as well as removal and reinstatement of marina berths. It consisted of the construction of approach structures on either river bank with cantilever boardwalks and steel ramps and reinforced concrete retaining structures. The works entailed significant interface with the Radisson Hotel, Luan Gallery and many environmental bodies.

The project involves the design and build of 22 km of Type 2 dual carriageway, tie in junctions and several intermediate junctions from Slievereagh, west of Baile Bhuirne village to Coolcour, east of Macroom town. There are a variety of major & minor junctions, roundabouts and connections to new and existing road networks. There are over 140 structures, including 4 river crossings, 23 access under/over bridges, 13 retaining wall structures and over 50 culverts. The earthworks required cut and fill of over 2.5 million cubic meters of material.

As part of the Junction Works between Seville Place, Guild Street and Sheriff Street Upper the Newly constructed Junction which included cycle lanes was fully resurfaced including sections of full pavement make-up.  The works involved the planning out of the existing wearing course through the signalised junction and the laying of new surface course which was carried out by Kilsaran.

The bridge was constructed circa 1860 using Timber Piles. As part of the new flood relief scheme the river channel had to be lowered by over 1 m, which could endanger stability of the timber piles of the bridge.

The upgrade and widening of 1.3km of the R132 in Fingal, Co. Dublin between the Collinstown Lane Junction and the Dublin Airport Roundabout to a two-way 2 lane plus bus lanes carriageway.

This contract involved the replacement of the rail bridge deck over the River Shannon at Drumsna including the supply and installation of 250 no. piles to support the concrete platform for the Demag 1375T dead wt Crane required to lift the deck sections.

To facilitate the new Galway to Dublin Greenway Cycleway, Jons Civil Engineering Company Ltd. constructed a new underbridge below the Dublin to Galway railway line over the Easter Bank Holiday 2019.

This project comprised of a link road to facilitate the future development of Stephenstown and provide access to 50 acres of development land. It involved the construction of 500m of 10m new carriageway, 360m of 6.5m carriageway, a 40m OD roundabout construction and the realignment and tie-in to the existing Clonard Street Road

The overall project was carried out in an urban environment and had to be constructed with phased possessions involving live traffic, live railway and live canal contiguous with Maynooth University access. The contract involved the widening and realignment of the road, the replacement of the railway overbridge and canal bridge at Bond Road, Maynooth including associated roadworks, drainage and accommodation works.

This complete contract formed a major new traffic lighted interchange to facilitate the new train station and adjacent development on a major route into Dublin.
It comprised of the Realignment of existing dual carriageway to new link roads, linking a residential development to a new train station with a bridge over the existing N3 dual carriageway just along the Phoenix park in Dublin.

This joint venture project, provided for the construction of the N2 Motorway between Ashbourne and M5O Finglas.
The contract comprised of the design, execution and completion of 13.3 km of dual 2 lane carriageway with hard shoulders, 3.5km of dual 3 lane carriageway with hard shoulders,  1.5km of dual carriageway with no hard shoulders, 2 no grade separated interchanges, 4 no grade roundabouts including the upgrading of the existing M50/N2 interchange, 5km of single carriageway roads and 16 no. principle structures.

The N21 Castleisland to Abbeyfeale Road Improvement Scheme forms part of the N21 National Primary Route between Castleisland in Co Kerry and Abbeyfeale in Co Limerick.

The construction of a 2.5km link road, connecting the existing Outer Ring Road and main arterial road in West Dublin which also services an industrial estate and new residential development.

Jons undertook the the design and upgrade of a 1.9km section of the M50 between the N3 Off and On ramps and the Northern end of the Westlink Toll Plaza. The M50 Upgrade Scheme  represented a major enhancement to Dublin’s orbital motorway.

The contract comprised of the design and execution of the widening of the existing road (5.9km) from 2 lane dual carriageway with hard shoulder to 3 lane carriageway with bus lanes. It included a section of split-level carriageway, conversion of the at-grade signalled Newcastle Road Junction to a grade separated junction which included an overbridge and 4 ramps, provision of signal controls on the at grade junctions between the slip road and the realigned Newcastle Road.

This new Clonmore Bridge formed the final link necessary to complete the Mullingar Orbital Road (C-Link).

The works comprised of 540m of reinforced concrete bridge, carrying a two-lane road carriageway with footpaths and cycle-paths along each side. The new bridge has 20 spans; each span contains nine pre-cast reinforced concrete beams, totalling 180 beams which were all pre-cast on site.

The reconstruction of the Glounthaune to Midleton railway involved the refurbishment of 11 km of pre-existing railway. The construction of 5 new over bridges,1 new underbridge and 8 upgrades to existing bridges. Installation of two New Steel Foot bridges (spanning the rail way track) and the construction of 2no. new rail stations.

Echelon Data Centres are developing a high profile location at Crag Avenue, Clondalkin Co. Dublin. The enabling works carried out by JCEL was necessary to divert a 520m section of an existing 1200mm diameter concrete trunk foul sewer. The 9B foul sewer traversed the eastern part of the site and flows in a southerly direction. The foul sewer average flow in dry weather was 250l/s and during wet conditions 400l/s.

This project included the construction of settlement and infiltration lagoons at Rossmore Quarry facility in Co. Cork. The lagoons form part of the mitigation measures to be implemented in line with the development of the adjoining quarry facility, which involves the deepening of the quarry by 20m across an area of 7.6 hectares.

The scheme is 5.6km in length and replaced a section of the N52. The new N52 alignment is a standard single carriageway which incorporates a 7.3m carriageway with 2.5m hard shoulders and 3m grass verges. T-junctions have been provided to accommodate local roads and a right/left staggered ghost island junction has been constructed at Dalystown, providing priority to N52 traffic. An overbridge has been constructed to carry the Dunboden Road over the new N52.

Jons Civil Engineering/John Cradock Ltd JV completed this landmark Public Realm project, including the construction of three new large parks, Tully, Beckett and Ticknick.

The N4 Dromod Roosky Bypass forms part of the Dublin to Sligo National Primary Route (N4).It was a Design and Build Project 10km long, with an additional 3.6km of regional roads and 3.8km of accommodation roads. There were 2 no. at-grade junctions and 9 bridge structures including 1 railway overbridge bridge on the Dublin to Sligo railway line,1 river bridge spanning over the River Eslin plus retaining walls.

The market town of Skibbereen in west County Cork had been the victim of significant flooding over many years, most notably the flood events of November 2009 caused widespread damage and hardship. This flood relief scheme was completed in 2019 by Jons Civil Engineering Company Ltd, reducing flood risk for inhabitants and businesses in line with best practice, facilitate future amenity walks and public spaces along the river banks and enhance the public realm in the town centre.

This contract refers to various construction works which were undertaken to provide much needed flood alleviation works along the River Dargle in the heart of Bray and adjacent to the busy town park and traffic junctions.

A public liaison initiative was in place throughout the project to maintain communication with the local residents and business owners

The project consists of the construction of a new reinforced concrete water reservoir and associated watermain, gravity and surface water pipelines for Fingal County Council.

The works comprised of the design, construct and operation of Irish Water infrastructure including the associated testing and commissioning of all pumping stations.

The contract consisted of the Design, Construct and Operate of Civil, Mechanical & Electrical Works for the new foul water pumping station and storage tank with all associated piping. Along with the Operation & Maintenance of the project for a duration of 12 months post completion.

This scheme involved the rehabilitation of 7 no. bridges located in County Longford including Scry, Kilnsavogue Ballymahon, Sands, Ballyglassin, Cartron, and Ardnaguillon Bridges. Each of the sites was located on either a National Primary or Secondary road.

This contract involves the routine maintenance of 694 bridges over a 4-year period, with each bridge to be visited at least once each year. The North West region covers counties Donegal, Sligo, Leitrim, Mayo, Galway, Monaghan, Cavan and Roscommon. It also includes an element of reactive maintenance over the full performance period to address bridge strikes and other non-planned maintenance works.

TII have engaged Roughan & O’Donovan-AECOM for the deployment of Intelligent Transportation Systems (ITS) equipment on the M50 motorway, including advanced motorway indicators, variable messaging signs (VMS) and roadside equipment. The overall aim of this project is to provide travel time information to drivers, increase safety on the road and to optimise traffic flows.

The contract is for the provision of network maintenance services and remedial works on selected high-speed motorway and dual carriageway sections (including junctions and slip roads) of the national road network in Ireland.

The project was located to the east of the existing R105 Strand Road & adjacent side roads, Ossory Road, Guildford/ Shamrock Place. It involved the construction of 2 steel structural bridges over the existing canal and live railway and changes in the junction of North Strand Road and Ossory Road to Toucan crossing with a re-configuration of the signal layout.

Forming part of the River Dargle Flood Defence Scheme Works, Package H involved public realm works with the installation of new services (ESB, Water main, Drainage) to the existing Lower Dargle Road in Bray, installation of paths and street lighting, resurfacing and construction of new junction to tie into Castle Street.

Jons Civil Engineering/John Cradock Ltd JV were awarded the Cherrywood Infrastructure Phase 1 works by Hines Ireland in October 2016. The project is the first works on site on the 400 hectare Cherrywood Strategic Development Zone, in south Co. Dublin.
It is a multi-disciplinary project with a wide variety of challenges both technical and operational.

Jons Civil Engineering Company Ltd. carried out all civils and remedial works to the superstructure of UBC 391, Monard Viaduct on the Dublin-Cork Line which occurred under a railway possession with no train operations for a period of 10 days.
The works consisted of the installation of an in-situ reinforced concrete slab over the existing masonry structure with weather proofing material and associated drainage. The double track was lifted and the ballast material excavated.

A 3rd party damaged the 1200Ø steel watermain supplying the Stillorgan reservoir, causing a 150mm hole to the top of the watermain. The watermain had been installed in a bored tunnel at a depth of 10m in solid granite. The client, Irish Water inserted an inflatable bung (nitrogen injection) into the pipe to allow continued use of the mains. Our works was for the repair of the pipeline whilst only allowing a minimum shutdown of the pipeline.

An excavation caused a potential road subsidence and then led to the destabilisation of a main road on a very scenic route with residential homes and local schools in close proximity. JCEL were called in to carry out emergency remedial works on the west section of the road and stabilise the embankment.

Following the catastrophic failure of one of its support piers in 2009 JCEL were called by Iarnrod Eireann to undertake the emergency reconstruction and repair of the bridge, which was re-opened to all traffic in just 12 weeks.

This project involved the design, construction and excavation of a twin walled sheet piled cofferdam at the Aghada Power Station to facilitate the construction of a new intake Pump house on behalf of ESBI.
The works were carried out in aggressive tidal marine conditions. The cofferdam comprises over 620 sheet-piles, each 18 metres in length, driven into the seabed and clutched together to form a twin walled dam 8 metres wide around the footprint of the new pumphouse.