Risk Assessment for Manhole Entry (UK) – Generate in Minutes
By the Riskora Editorial Team · Reviewed against our editorial standards · Last reviewed
Generate a structured risk assessment for manhole and confined space entry — covering atmospheric testing, rescue plans, ventilation requirements, and permit to enter procedures.
UK (RAMS) example document — Two-Storey Rear Extension — 14 Birchwood Lane, Reading. Client: Mr & Mrs A. Whitfield (Private Client). Site: 14 Birchwood Lane, Reading, RG1 5JT. Scope: Construction of a two-storey rear extension (6.4m × 4.2m) to an existing semi-detached dwelling. Works comprise breaking out of existing rear elevation, trench-fill foundations to 1.0m, traditional cavity blockwork to first floor, pre-stressed concrete lintels, timber roof structure with natural slate finish, plus alterations to existing rear wall to form structural opening with rolled steel joist (RSJ 203×102 UB23). Works programmed over 9 weeks with a peak site team of 6 operatives. Hazards assessed: Manual handling — blocks, lintels, plasterboard, Working at height — independent scaffold & roof structure, Buried services strike during excavation, Collapse of excavation / trench wall, Hand-arm vibration (HAVS) — breaking out, drilling, Silica dust — cutting blocks, brick, concrete, Vehicle/pedestrian segregation — narrow domestic street.
Full version
Takes less than 5 minutes
No card required · 1 free PDF · Upgrade any time (completely free)
What should a manhole entry risk assessment include?
A manhole entry risk assessment must identify the confined space hazards (toxic atmosphere, oxygen depletion, drowning, engulfment), specify atmospheric monitoring requirements (continuous gas testing for O2, CO, H2S, LEL), define the rescue plan and equipment, describe ventilation arrangements, confirm the permit to enter system, list competence requirements for all personnel, and establish emergency procedures including emergency services notification.
Manhole Entry Is Classified as Confined Space Work — and People Die Getting It Wrong
Manholes, chambers, valve pits, and inspection pits are confined spaces under the Confined Spaces Regulations 1997. The atmosphere inside can be immediately dangerous — hydrogen sulphide from sewage, carbon dioxide from decomposition, methane from ground gas, or simple oxygen depletion. Workers have died within seconds of entering manholes with toxic atmospheres. Others have died trying to rescue them without proper equipment. A manhole entry risk assessment isn't optional — it's the document that determines whether entry is safe, what precautions are needed, and what happens if something goes wrong. Many professionals are unsure about the legal requirements for safety documentation.
How Riskora Helps
Riskora generates confined space risk assessments specifically for manhole and chamber entry. The tool covers atmospheric hazard identification, gas testing requirements, ventilation specifications, rescue plan documentation, permit to enter procedures, and competence requirements for entry teams and standby rescue personnel. Select your entry scenario and generate a comprehensive risk assessment. You can also use our standalone risk assessment builder or method statement tool.
Who it's for
- Utilities contractors entering manholes for sewer inspection and repair
- Telecoms teams accessing cable chambers and joint boxes
- Water company engineers entering valve chambers and pump stations
- Drainage contractors inspecting and cleaning manholes
- Construction teams entering newly constructed manholes for commissioning
Understand the Fundamentals
Before you generate your document, these guides cover the knowledge that underpins every good RAMS, risk assessment, and method statement.
UK Legal Requirements for Risk Assessments
What the law requires for risk assessments under MHSWR 1999 and when they must be recorded.
RAMS vs Risk Assessment
When a standalone risk assessment is enough and when you need a full RAMS document.
How to Write a RAMS Document
If your risk assessment needs to be part of a RAMS, this guide covers the full structure.
What Is a RAMS Document?
Learn how risk assessments fit within the RAMS framework used across UK construction.
RAMS vs Risk Assessment — Key Differences
When you need a full RAMS versus a standalone risk assessment, and how the two documents work together.
Construction Safety Documents Explained
An overview of the key safety documents required on UK construction sites and how they relate to each other.
Is a manhole a confined space?
Most manholes meet the definition of a confined space under the Confined Spaces Regulations 1997 — they are substantially enclosed, there is a reasonably foreseeable risk of serious injury from hazardous substances or conditions, and access is restricted. Your risk assessment must treat manhole entry as confined space entry unless you can demonstrate that it does not meet the confined space definition.
What gas testing is required for manhole entry?
Before and during entry, the atmosphere must be tested for oxygen levels (19.5-23.5%), flammable gases (LEL below 10%), hydrogen sulphide (below 5ppm), and carbon monoxide (below 30ppm). Testing must be continuous during the entry, not just a pre-entry check. Your risk assessment must specify the gas detection equipment, alarm set points, and the action to take if readings exceed safe limits.
Key Risks and Considerations
- •Toxic atmosphere — H2S, CO, methane, and other gases in sewers and chambers
- •Oxygen depletion — displacement by inert gases or consumption by biological processes
- •Drowning — sudden water ingress from rainfall, tidal, or upstream release
- •Engulfment — sediment, sludge, or material collapse
- •Falls — entering and exiting manholes via ladders or step irons
- •Manual handling — equipment, pumps, and materials through restricted openings
- •Biological hazards — Weil's disease (leptospirosis) from rat urine in sewers
- •Electrical hazards — cables and equipment in service chambers
- •Rescue failure — inadequate rescue plan leading to multiple casualties
Key Features
- Confined space entry risk assessment templates
- Atmospheric hazard identification for common manhole types
- Gas testing specification and alarm set points
- Rescue plan documentation
- Permit to enter system integration
- Competence requirement checklists
- Download to PDF
Example Structure (UK Standard)
- Confined space identification and classification
- Purpose of entry and scope of work
- Atmospheric hazard assessment
- Gas testing requirements and equipment
- Ventilation arrangements
- Permit to enter system
- Rescue plan and equipment
- Hazard identification with risk ratings
- Control measures
- PPE and RPE requirements
- Communication arrangements
- Competence requirements (confined space entry, rescue, gas testing)
- Emergency procedures
Common Questions Before Getting Started
Will this take long?
Under 5 minutes. Select your trade, pick hazards, download.
Is it complicated?
No training needed. The guided builder walks you through every step.
Do I need experience?
If you know what work you're doing, you can use Riskora.
Is it free to try?
Yes. The Free plan needs no card — generate, review and download one free PDF. Upgrade any time for branding, DOCX, sign-off and higher limits.
Create your RAMS in under 5 minutes
No onboarding or setup needed — start generating documents instantly
Try Riskora FreeNo card required · 1 free PDF · Upgrade any time (completely free)
All documents generated by Riskora should be reviewed by a competent person before use on site. Riskora provides structured templates — professional judgement is always required.
"The most dangerous thing about a manhole is that it looks safe from the top. The atmosphere inside can kill before you take your second breath."
What your RAMS actually contains
Riskora builds a structured, client-facing document — not a generic AI paragraph. Every section is shaped around your job, your site and your team.
Hazards
Task-specific hazards for the job, captured row by row — not a generic list pulled from an old RAMS.
Controls
Control measures mapped to each hazard with residual risk scoring after controls are applied.
PPE
PPE requirements tied to the activity and site, ready to brief to the team.
Method steps
Step-by-step method statement structured around how the work is actually sequenced on site.
Emergency arrangements
First aid, rescue plan, emergency contacts and site-specific escalation routes.
COSHH prompts
Substance prompts when the work involves chemicals, dusts, fumes or sealants — flagged early, not missed at review.
Sign-off
Operative sign-off captured against the document — names, dates and acknowledgement of the brief.
Version history
Every change tracked so you can show what was issued, when, and which version the team signed.
Approval status
Clear approval state on every document — draft, in review, approved, issued — visible across the team.
Audit trail
Who created it, who reviewed it, who signed it. A complete trail you can hand to a principal contractor or auditor.
From copied-and-pasted to site-specific
The reason RAMS get rejected is rarely the format — it's that the document is obviously generic. Riskora rebuilds it around this job, this site and this task.
Generic template copied from an old job.
- • Hazards and controls that don't match this site or task.
- • Method steps written for a different sequence of work.
- • No emergency arrangements specific to the location.
- • Client flags it as generic and asks for a rewrite.
Site-specific document structured around this job, site and task.
- • Hazards captured from the actual scope you pasted in.
- • Method steps sequenced for how the work runs on site.
- • Emergency arrangements and rescue plan tied to the location.
- • Approved internally, briefed to the team, signed off and stored.
From job details to signed-off document
A four-step workflow used by contractors, consultants and safety teams to turn informal job details into client-ready safety paperwork.
- 1Paste job details
Drop in a client email, a WhatsApp from the site manager, a scope of works or a tender note. Anything that describes the job.
- 2Riskora structures the document
Riskora turns your brief into hazards, controls, method steps, PPE, emergency arrangements and COSHH prompts.
- 3Review, edit and download
You stay in control of every section. Tweak anything, then download a clean PDF or share a link.
- 4Brief the team and record sign-off
Brief operatives, capture their sign-off and keep a full audit trail of who signed which version.
Built by people who've written this paperwork on real sites
Riskora is built by a founder with hands-on site and document experience — designed for contractors, consultants and safety teams who need to issue, brief and prove safety paperwork without losing a day to admin.
- Built for contractors, consultants and teams
Solo trades, principal contractors and in-house safety teams all run on the same workflow. - Supports multiple countries
UK, Ireland, Australia, New Zealand, US and Canada — wording and document types match the local standard. - Not just documents
Sign-off, approvals, version history and an audit trail — the management workflow around the paperwork.
Frequently Asked Questions
Ready? It takes less than 5 minutes.
No training. No complex setup. Just select your trade and go.
Start Your RAMS Now — It's FreeNo card required · 1 free PDF · Upgrade for branding, DOCX, sign-off and audit trails (completely free)
References & Further Reading
Primary UK sources covering the legal and practical framework behind RAMS, risk assessments and method statements.
Create your RAMS free — preview before sign-up
Generate a preview first. Sign up only when you want to save, edit or export.
Final RAMS must be reviewed and approved by a competent person before use.
Riskora is an assistive document preparation tool. All documents generated must be reviewed, verified, and approved by a competent person before use on site. Riskora does not replace professional safety judgment, and no output should be treated as a legal compliance guarantee.