Bridge design & assessment
Design for new bridges and assessment of existing assets. Analysis that establishes what a structure can carry — and what should happen next.
Bridge & structural engineering
Nottingham, UK
Clarity in thought.
Confidence
in structure.
We take complex structures from first principles
to practical delivery. Design, assessment, temporary
works and independent checks.
Structural thinking / from the ground up
01 / Our approach
Sound judgement.
Built into every decision.
Every structure presents a different challenge. We bring straight thinking, technical rigour and a practical understanding of how things get built.
Semantica is a UK bridge and structural engineering consultancy. Chartered engineer led, we focus on the decisions that matter: safety, buildability and commercial sense.
01
First principles
Understand how the structure actually works. Let the analysis set the direction.
02
Practical thinking
Engineering grounded in the realities of delivery.
03
Straight answers
Advice in plain terms. Decisions you can act on.
02 / Our expertise
Complex challenges.
Dependable answers.
Specialist input at the points where
structural understanding matters most.
Infrastructure & bridges
Special & engineering structures design
Design of non-standard and special structures where geometry, loading or detailing sit outside routine building work. Worked through from first principles.
Inspection & structural assessment
Understand condition. Assess structural implications. Focused inspection and assessment that helps asset owners decide where maintenance and intervention are worth it.
Independent design checks (including Category III)
An independent view of structural design. Rigorous checks that examine assumptions, analysis and details, with findings reported so they can be resolved.
Construction & temporary works
Temporary works & lifting / erection engineering
Engineering for the stages between design and completion. Temporary works, lifting and erection brought together with the construction sequence in mind.
Steel & concrete structures
Design and analysis of steel and concrete structures. Material understanding and careful detailing, with a focus on efficient, buildable solutions.
Gas & energy
G17/G35 approver & appraisal services (gas industry)
Approver and appraisal services against IGEM G17/G35 for structural and civil works in the gas industry. Review that keeps schemes moving.
Design for explosion effects (deflagration / dust explosions)
Structural design for explosion effects, including dust deflagration scenarios on industrial plant. Resistance assessed alongside the structure that carries it.
Industrial process plant
Industrial filtration design
Design of dust hoppers, plenums, ducts and related filtration plant structures. Plant-side detailing with the supporting structure thought through.
03 / Spans in practice
Every span has a right form.
Bridge design starts with a judgement: which structural form the crossing demands. Set a span and watch the answer change.
60m span
15 m1500 m
Composite plate girder
Typical range 40–90 m
Steel plate girders acting compositely with a concrete deck: the workhorse of UK highway crossings, fast to erect and straightforward to maintain.
Indicative ranges. Ground conditions, clearances, aesthetics and economics all move the boundaries — weighing them is the job.
04 / Who we work with
The right input.
At every stage.
Asset owners
Understand your structures and plan their next chapter with informed engineering advice.
Contractors
Resolve structural challenges with practical input that supports construction and delivery.
Designers
Bring specialist capability and an independent perspective to your design process.
05 / Start a conversation
Good engineering
starts with an
honest conversation.
Tell us what you’re working on, where you need
support and what matters to your project.
Nottingham, UK