Address: 11 Hockley Court, 2401 Stratford Road, Hockley Heath, Solihull, B94 6NW
Email: info@cpccivils.net Phone: 0121 766 7019
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Design by eSterling
Project Value
£400,000
Client Name
May Gurney
Project Type
Waterway Engineering
Bridge 34 is a public road bridge owned by Canal and River Trust over the North Oxford Canal. The bridge was of a brick arch construction and was in a poor condition with large crack in the brick work wingwalls, pilaster and arch barrel. The road surface was settling, and the parapet was missing many coping stones.
The principle features of the works were;
- Setup of a full road closure of Brinklow Road
- Install access structures to bridges faces.
- Install support systems to services.
- Removal of roadway and fill from abutments.
- Crack stitching with Glass Fibre Reinforced Polymer anchors.
- Drilling and installation of tie-bars and pattress plates right through the bridge structure to tie the wingwalls together.
- Replacement and repointing of poor brickwork on the bridge faces with NHL 5 lime mortar.
- Taking down and rebuilding of the southern parapet.
- Installation of 2.4m sheet piles on the southern offside approach from the canal.
- Installation of new reinforced concrete slab to the roadway, and ducting of the existing services.
- Surfacing of the roadway and installation of road drainage.
- Underpinning of the wingwalls with mass concrete.
- Below water level brickwork repairs.
The bridge had a 10ton weight limit which restricted the size of plant we could use, and the canal needed to be kept open to allow boating traffic to continually navigate the canal.
The four wingwalls had to be tied to each other buy drilling right through the bridge from one side to the other and installing 6 stainless steel tie-bars and pattress plates. The vast majority of the brickwork was then re-pointed with NHL5 lime mortar and new coping stones made and installed on the parapets.
The entire road surface and bridge deck was removed which involved excavating around live Gas and Water services. A new reinforced concrete support slab was then installed followed by new kerb drainage and tarmac road surface.
Using specialist scaffolding, drilling rigs and floating plant the scheme was delivered on time and on budget to the delight and satisfaction of both Canal and River Trust and the County Council.
