Tony Dempsey Profile Photo with Grey Background

Tony Dempsey

Chief Bridge Engineer
Autoridad del Canal de Panama
JV Partner


Roughan & O’Donovan provided the preliminary bridge design and environmental engineering services for a new, fourth bridge over the Panama canal, including approach viaducts and access roads on the Pacific side.


Through close co-operation with our client and joint venture partners, we succeeded in delivering a cost effective, structurally efficient and elegant bridge design.

  • 1.12km

    Total cable-stay span length
  • 6

    No. of lanes for transit vehicles
  • 190m

    Height of inverted Y-shaped towers


The 3km long, cable-stayed bridge was designed to connect west Panama with Panama city, increase traffic and freight transport capacity and improve vessel navigability through the canal.

It has a main span of 540m and a clearance of some 80m over the navigation channel of the canal.

It features two inverted Y-shaped towers, three lanes of 3.65 meters in each direction for transit vehicles and two monorail lanes dedicated to a metro line service.


Our challenge lay in co-ordinating a multidisciplinary team responsible for:

  • Technical analysis of road design
  • Environmental design
  • Bridge design
  • Geotechnical design
  • Cost surveying
  • Construction programme modelling

Services provided:

  • Bridge engineering design
  • Road engineering design
  • Environmental engineering consultancy

Learn more about our long-span bridges work