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RTW Süd 1 Stabbogenbrücke in Montage
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Bridge engineering · project experience

Bridge engineering

Project register

STRANA / BRIDGES

This overview presents selected projects delivered during earlier roles of our engineers.

The work covers structural design and verification of steel and steel-composite bridges, from concept and detailed calculations to fabrication design, new construction, strengthening and rehabilitation of existing structures.

01

Tied arch · detailed design

RTW South 1 (tied-arch bridge)

The Regionaltangente West is a new tangential rail link in the Rhine-Main region. In section South 1, a prominent tied-arch bridge crosses the densely occupied railway tracks near Frankfurt Stadium without intermediate supports.

The bridge was preassembled near the Gleisdreieck car park and precisely inserted into its final position during a railway possession. The superstructure includes an orthotropic deck and external walkways and cable routes on both sides.

Montage der RTW Süd 1 Stabbogenbrücke
Stahlbau der RTW Süd 1 Brücke

Project data

Location
Frankfurt am Main – near Frankfurt Stadion S-Bahn station / Deutsche Bank Park; the new RTW line crosses existing DB railway tracks, including the Frankfurt–Mannheim line, near the Gleisdreieck car park
Construction / installation (publicly documented)
Preassembly from 2023; bridge launch/lift in 2024
Structural system / material
Single-track steel tied-arch bridge with two arch planes and hangers; orthotropic deck with external walkways and cable routes on both sides
Key data
Maximum span 113.2 m; bridge length approximately 113 m; weight approximately 1,300 t; structural height approximately 18 m
Project period
2020–2021
Service
Execution design (A)
Reference
Project experience and work completed by our engineers before joining STRANA
02

Suspension bridge · existing structure

Saar Bridge Mettlach (L 176) – suspension bridge over the Saar

The Saar Bridge in Mettlach is a distinctive listed steel suspension bridge connecting the centre of Mettlach with the district of Keuchingen.

The 2021 commission comprised a structure-specific damage analysis, including condition survey, assessment and cause analysis, as well as a recalculation of the existing bridge. The results formed the basis for assessing load-bearing capacity and serviceability and for defining preservation and repair measures.

Saarbrücke Mettlach über die Saar
Tragwerk der Hängebrücke Mettlach

Project data

Location
Mettlach, Saarland – connection between central Mettlach and Keuchingen; L 176 crossing of the Saar
Year built
1951/1952 (post-war replacement; existing structure)
Structural system / material
Steel suspension bridge
Key data
Maximum span approximately 107.9 m; total length approximately 108 m
Project period
2021
Service
Expert assessment, structure-specific damage analysis and recalculation
Reference
Project experience and work completed by our engineers before joining STRANA
03

Steel composite · erection

Weser Bridge Fuhlen (L 434), Hessisch Oldendorf / Fuhlen

The Weser Bridge at Fuhlen is a key river crossing connecting Hessisch Oldendorf with Fuhlen. Its importance and the condition of the previous bridge led to a replacement structure.

The river span was delivered as a 109 m tied-arch steel-composite bridge, complemented by a northern flood bridge.

The project work included technical checking of erection aids, temporary structural systems and stability during construction and bridge installation.

Weserbrücke Fuhlen als Stabbogenbrücke

Project data

Location
Lower Saxony, Hameln-Pyrmont district – L 434 crossing of the Weser between Hessisch Oldendorf and Fuhlen
Year built
Replacement constructed in 2017–2018; opened to traffic in 2018; earlier bridge at the site included the 1953 structure
Structural system / material
River span as a tied-arch steel-composite bridge; additional northern prestressed-concrete flood bridge
Key data
River bridge span L = 109.0 m
Project period
2017–2019
Service
Contribution to independent technical checking of erection aids and temporary structures
Reference
Project experience and work completed by our engineers before joining STRANA

Location

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L 434 Weser crossing · Hessisch Oldendorf / Fuhlen

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04

Reinforced concrete · rehabilitation

Trenčín: bridge to Ostrov island

The reinforced-concrete bridge connects Trenčín with the Ostrov leisure island. A comprehensive rehabilitation and strengthening scheme was developed between 2014 and 2016.

The work included strengthening the foundations and abutments, replacing bearings, longitudinal and transverse prestressing and additional shear reinforcement to the main girders.

A new composite deck slab was constructed, side-mounted walkways and cycle paths were added and the carriageway was widened from 5.0 m to 6.0 m.

Brücke zur Insel Ostrov in Trenčín

Project data

Categories
Bridges, pedestrian bridges
Location
Trenčín – bridge to the Ostrov island and leisure area near the municipal swimming facilities
Year built
1953–1956
Structural system / material
Reinforced-concrete bridge
Key data
Maximum span 43 m; total length approximately 114 m
Project period
2014–2016
Service
Rehabilitation measures and execution drawings
Reference
Project experience and work completed by our engineers before joining STRANA

Location

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Bridge to the Ostrov leisure island · Trenčín

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05

Steel bridge · checking

Schloss Bridge Ritterhude (L 151 over the Hamme)

The Schloss Bridge is a key crossing of the Hamme in Ritterhude and an important connection for residents, commuters, freight traffic and agriculture.

The more than 70-year-old bridge has been replaced since July 2024 by a new structure designed to current construction and traffic standards.

Schlossbrücke Ritterhude über die Hamme
© H3 Entwicklungsgesellschaft mbH

Project data

Categories
Bridges
Location
Ritterhude, Osterholz district, Lower Saxony – L 151 crossing of the Hamme
Existing structure built
1952 (reconstruction after destruction in the Second World War; two-span bridge)
Existing structural system / material
Steel bridge
Key data
Maximum span 36.81 m
Project period
2016–2017
Service
Checking (P)
Reference
Project experience and work completed by our engineers before joining STRANA
06

Railway bridge · independent checking

Davenstedter Strasse railway bridge, Hanover – replacement

The Fösse–Grünzug railway bridge forms part of Hanover bridge series 2 and carries DB tracks across the Fösse green corridor.

For the replacement project, structural calculations and execution documents were independently checked to confirm code compliance, safety and serviceability.

Eisenbahnüberführung Davenstedter Straße in Hannover
© Gerd Fahrenhorst / Wikimedia Commons (CC BY 4.0), Quelle: Wikimedia Commons

Project data

Location
Hanover – freight bypass railway over the green corridor at the Fösse, crossing a path and the river; part of DB bridge series 2 on line 1750 Wunstorf–Lehrte
Existing structure built
2018
Existing structural system / material
Steel trough railway bridge
Key data
Maximum span 18.56 m
Project period
2017
Service
Contribution to independent technical checking
Reference
Project experience and work completed by our engineers before joining STRANA

Location

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Freight bypass line over the Fösse · Hanover

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07

Lift bridge · checking

Kattwyk Bridge, Hamburg – former road and rail lift bridge

The Kattwyk Bridge is one of the distinctive movable crossings in the Port of Hamburg. It enables large vessels to access the Harburg seaports while connecting the southern port areas with Wilhelmsburg and Hohe Schaar.

Following commissioning of the new railway lift bridge, the existing Kattwyk Bridge is used primarily for road traffic. The 2021 work comprised bridge inspection services supporting preservation and safe continued operation.

Kattwykbrücke im Hamburger Hafen
© NordNordWest / Wikimedia Commons (CC BY-SA 3.0 DE)

Project data

Location
Port of Hamburg – Southern Elbe; connection between Moorburg and the Kattwyk peninsula / Hohe Schaar, Wilhelmsburg
Year built
1971–1973; inaugurated on 21 March 1973
Structural system / material
Steel truss lift bridge
Key data
Maximum lift-span length 106.1 m; side spans 89.6 m + 89.6 m; total length approximately 290 m
Project period
2021
Service
Checking (P)
Reference
Project experience and work completed by our engineers before joining STRANA

Location

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Süderelbe crossing Moorburg ↔ Hohe Schaar · Port of Hamburg

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Complete reference overview

Project work completed at STRANA and during earlier roles of our engineers.

Services

26 of 26 references

01

Trenčín: bridge to the island „Ostrov“ – Umbau, komplette Sanierung und Ertüchtigung

Location
Trenčín (SK) – bridge to the island-/Freizeitzone „Ostrov“
System / material
reinforced-concrete bridge
Key data
Maximum span 43 m; total length ca. 114 m
Period
2014–2016
Service
Rehabilitation measures and execution drawings
02

Schlossbrücke Ritterhude (L 151 über die Hamme)

Location
Ritterhude (district Osterholz, Lower Saxony) – crossing der Hamme as part of der state road L 151
System / material
Stahlbrücke
Key data
Maximum span 36,81 m
Period
2016–2017
Service
Checking (P)
03

EÜ Wunstorfer Straße (B441), Hannover

Location
Hannover (district Ahlem) – railway bridge der freight bypass railway over the B 441
System / material
railway bridge – steel trough bridge
Key data
Maximum span 17,31 m
Period
2016–2017
Service
Checking (P)
04

EÜ Stresemannstraße – Sternbrücke (Hamburg-Altona)

Location
Hamburg – railway bridge over the road intersection Max-Brauer-Allee / Stresemannstraße (Sternbrücke)
System / material
steel girder bridge
Key data
Maximum span 44,30 m
Period
2016–2017
Service
Checking (P)
05

EÜ Davenstedter Straße (Hannover) – Ersatzneubau

Location
Hannover – railway bridge der freight bypass railway over Davenstedter Strasse
System / material
railway bridge – steel trough bridge
Key data
Maximum span 16,60 m
Period
2017
Service
Contribution to independent technical checking
06

EÜ Fösse – Grünzug (Hannover) – Ersatzneubau

Location
Hannover – railway bridge der freight bypass railway over the green corridor an der Fösse
System / material
railway bridge – steel trough bridge
Key data
Maximum span 18,56 m
Period
2017
Service
Contribution to independent technical checking
07

Weserbrücke Fuhlen (L 434), Hessisch Oldendorf

Location
Lower Saxony, district Hameln-Pyrmont – Weser crossing between Hessisch Oldendorf und dem Ortsteil Fuhlen
System / material
tied-arch steel-composite bridge; northern flood bridge (prestressed concrete)
Key data
span Strombrücke L = 109,0 m
Period
2017–2019
Service
Contribution to the independent technical checking of erection aids and temporary structures
08

AK Bochum (A40/A43)

Location
Bochum (NRW) – motorway interchange Bochum (A40/A43)
System / material
steel-composite bridge
Key data
Maximum span 56,5 m
Period
2017–2018
Service
Recalculation and rehabilitation measures
09

EÜ Wierau (district Osnabrück)

Location
Lower Saxony, district Osnabrück – area Bissendorf/Wissingen; railway bridge over the Wierau stream
System / material
steel trough bridge
Key data
Maximum span ca. 9,85 m
Period
2017
Service
Inspection (condition assessment, documentation and inspection report)
10

bypass Calden (B7/L3214) – bridge structure forming part of the new construction

Location
Hesse, district Kassel – Calden; bypass as part of der B7
System / material
steel-composite bridge
Key data
Maximum span 43 m
Period
2017
Service
Deck slab and execution design
11

Örtzebrücke (B3) Wolthausen

Location
Wolthausen (Gemeinde Winsen (Aller), district Celle, Lower Saxony) – federal road B3, crossing der Örtze
System / material
composite bridge
Key data
Maximum span 32,34 m
Period
2018
Service
Recalculation (existing-structure verification / load-bearing assessment)
12

AK Dortmund-Nordwest (A2/A45) – bridge structure at the motorway interchange

Location
Castrop-Rauxel (NRW) – motorway interchange Dortmund-Nordwest; Verknüpfung A2 (E34) und A45 (E41)
System / material
steel-composite bridge
Key data
Maximum span 31,41 m
Period
2018–2022
Service
Recalculation (existing-structure verification / load-bearing assessment)
13

A45 Erlenkamp (Dortmund)

Location
NRW – federal motorway A45, north of the motorway interchangees Dortmund-Nordwest; crossing over Deutsche Bahn infrastructure
System / material
composite bridge
Key data
Maximum span 40,70 m
Period
2018–2019
Service
Recalculation
14

A45 / Martener Straße (Dortmund)

Location
Dortmund (NRW) – federal motorway A45, overpass in the area of Martener Straße
System / material
composite bridge
Key data
Maximum span 47,40 m
Period
2019
Service
Recalculation
15

Hörsteler Straße (L501) / AS Rheine-Kanalhafen (A30)

Location
Rheine (Kanalhafen/Rodde), NRW – L501 „Hörsteler Straße“ in the area of der junction Rheine-Kanalhafen (A30)
System / material
composite bridge
Key data
Maximum span 46,09 m
Period
2019–2022
Service
Recalculation, rehabilitation, execution drawings and strengthening measures
16

A2-bridge over the Lippe (bei Hamm / Hamm-Uentrop)

Location
North Rhine-Westphalia – area Hamm (Hamm-Uentrop); crossing der Lippe along der federal motorway A2
System / material
composite bridge
Key data
Maximum span 38,40 m
Period
2019
Service
Rehabilitation measures and execution drawings
17

A6 Grumbachtalbrücke (bei Sengscheid / St. Ingbert)

Location
Saarland – federal motorway A6 between den junctionn Saarbrücken-Fechingen und St. Ingbert-West
System / material
composite bridge
Key data
total length ca. 326 m; maximum span 86,00 m
Period
2019
Service
Checking
18

B224 / Lippebrücke (Dorsten, Borkener Straße)

Location
Dorsten (NRW) – B224 (Borkener Straße), crossing der Lippe
System / material
steel-composite bridge
Key data
Maximum span 37,04 m; total length 83,34 m
Period
2019
Service
Recalculation, rehabilitation and strengthening measures, execution drawings
19

RTW Süd 1 – Stabbogenbrücke (Frankfurt am Main)

Location
Frankfurt am Main – in the area of S-Bahn-Station „Frankfurt Stadion“ / Deutsche Bank Park; overpass der RTW-new line over existing DB railway tracks
System / material
single-track steel tied-arch bridge (two arch planes with hangers); orthotrope Fahrbahn
Key data
Maximum span 113,2 m; bridge length ca. 113 m; weight ca. 1.300 t
Period
–
Service
–
20

Talbrücke Kallenbach (A45, bei Herborn)

Location
Hesse – federal motorway A45 (Sauerlandlinie), in the area of Herborn; über dem Herborner Wildgehege / Kallenbachtal
System / material
steel-composite bridge
Key data
Maximum span 73,0 m; total length ca. 173 m
Period
2020
Service
Rehabilitation measures
21

Kattwykbrücke – alte Hubbrücke / Straßenbrücke (Hamburg)

Location
Hamburg (Hafen) – Southern Elbe; connection Moorburg ↔ Kattwyk-Halbinsel/Hohe Schaar (Wilhelmsburg)
System / material
steel truss lift bridge
Key data
Maximum span (Hubteil) 106,1 m; side spans each 89,6 m; total length ca. 290 m
Period
2021
Service
Checking (P)
22

Saarbrücke Mettlach (L176) – suspension bridge over the Saar

Location
Mettlach (Saarland) – connection Ortsmitte Mettlach ↔ Keuchingen; overpass der L176 over the Saar
System / material
steel suspension bridge
Key data
Maximum span ca. 107,9 m; total length ca. 108 m
Period
2021
Service
Expert assessment, structure-specific damage analysis and recalculation
23

Talbrücke Bleche (A45, Drolshagen-Bleche)

Location
North Rhine-Westphalia – A45 (Sauerlandlinie) bei Drolshagen; valley crossing in the area of des Ortsteils Bleche
System / material
steel-composite bridge
Key data
Maximum span 95,0 m; total length ca. 557 m
Period
2021
Service
Preliminary design (VE)
24

RTW EÜ Isenburger Schneise (Frankfurt am Main)

Location
Frankfurt am Main – Isenburger Schneise (Frankfurter Stadtwald), Planfeststellungsabschnitt „Süd 1“ der Regionaltangente West (RTW)
System / material
steel trough bridge
Key data
Maximum span 42,5 m
Period
2021–2022
Service
Execution design (A)
25

pedestrian bridge über die Galvaniho Straße (Bratislava)

Location
Bratislava (SK), Galvaniho ulica (Ružinov) – connection Avion Shopping Park/IKEA ↔ Galvaniho Business Center
System / material
steel bridge – four-span box-girder/trough structure on steel columns
Key data
total length ca. 84 m; maximum span ca. 29 m
Period
2023
Service
Design (E)
26

SO 205 railway bridges over the D55 (Tschechien)

Location
Tschechien (Zlínský kraj), area Napajedla / Spytihněv – crossing der Autobahn D55 durch die double-track railway line
System / material
two separate steel truss bridges (one track each)
Key data
spans per bridge 61,65 m + 61,65 m; bridge length ca. 151 m (je Gleis)
Period
2025
Service
Advance structural calculation and execution design

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