Instant bridges in Hammarsdale

2018-09-05 06:00
A new bridge was erected at the Hammarsdale interchange within four days.PHOTO: supplied

A new bridge was erected at the Hammarsdale interchange within four days.PHOTO: supplied

Multimedia   ·   User Galleries   ·   News in Pictures Send us your pictures  ·  Send us your stories

MODERN engineering has made it possible for a bridge to be erected across both carriageways over a busy highway in four days.

Recently, traffic on the N3 from Durban to Pietermaritzburg was diverted for two consecutive weekends to make it possible for a new bridge to be erected at Hammarsdale.

The development of the Keystone Park Light Industrial, Warehousing and Logistics Precinct at Hammarsdale has increased the volume of traffic, especially heavy vehicles, using the intersection of the N3 and MR 385.

The South African National Roads Agency SOC Ltd (Sanral) decided that the interchange must be upgraded from a simple diamond interchange, to a new semi-parclo (partial clover leaf) free-flow interchange to prevent a back-up of trucks onto the busy N3.

Ian Jackson, resident engineer at Hatch consulting engineers, said in order to minimise delays, precast beams were used.

The beams were cast in a specialised casting yard approximately five kilometres away from the construction site and were transported from the casting yard to site with special low-bed vehicles.

As each beam weights 37 tons, a large substantial crane was used to lift and place each beam in position.

It took two days to position 23 beams per deck. Owing to the positioning of the crane to lift the beams and the potential danger to traffic, each carriageway was closed during the lifting and placing operation. — Supplied.

Join the conversation!

24.com encourages commentary submitted via MyNews24. Contributions of 200 words or more will be considered for publication.

We reserve editorial discretion to decide what will be published.
Read our comments policy for guidelines on contributions.
NEXT ON NEWS24X

Inside News24

 
/News
Traffic Alerts
There are new stories on the homepage. Click here to see them.
 
English
Afrikaans
isiZulu

Hello 

Create Profile

Creating your profile will enable you to submit photos and stories to get published on News24.


Please provide a username for your profile page:

This username must be unique, cannot be edited and will be used in the URL to your profile page across the entire 24.com network.

Settings

Location Settings

News24 allows you to edit the display of certain components based on a location. If you wish to personalise the page based on your preferences, please select a location for each component and click "Submit" in order for the changes to take affect.




Facebook Sign-In

Hi News addict,

Join the News24 Community to be involved in breaking the news.

Log in with Facebook to comment and personalise news, weather and listings.