Temporary Access Roads AHA (Activity Hazard Analysis / Job Hazard Analysis)
Updated 2026-06-23
A Temporary Access Roads AHA (Activity Hazard Analysis / Job Hazard Analysis) is the plan that keeps the crew building and using temporary access roads safe from the roadbuilding equipment, from road failure and unstable surfaces, and from the haul traffic. Temporary access roads build and use the temporary roads that provide site access for construction traffic — combining the construction-equipment and roadbuilding hazard, the road-stability-and-surface and failure hazard, and the haul-traffic and struck-by hazard. This guide walks through building a Temporary Access Roads AHA that names the construction-equipment/roadbuilding, road-stability-and-surface/failure, and haul-traffic/struck-by hazards and assigns the equipment, road-stability, and traffic controls that hold up in the field.
Why temporary access roads needs its own AHA
Temporary access roads build, maintain, and use the temporary roads that provide access to and within a construction site for construction traffic — the graded, surfaced (gravel/aggregate) haul and access roads that carry equipment, delivery trucks, and haul trucks to the work areas. The defining features are the roadbuilding (grading and surfacing with equipment) and the road as a haul route (stability, surface, and haul traffic). The hazards combine the construction-equipment and roadbuilding (building the road uses grading and earthmoving equipment (dozers, graders, compactors) — the mobile-equipment/struck-by hazard during roadbuilding), the road-stability-and-surface and failure (the temporary road must be stable and adequate for the haul loads — inadequate roadbed, soft/unstable surfaces, poor drainage, or steep grades create rollover, bogging, and loss-of-control hazards for the haul vehicles), the haul-traffic and struck-by (the road carries haul/equipment traffic — the struck-by hazard from the haul traffic, and the traffic on the narrow temporary road), and the dust/environmental. The road-stability-and-surface/failure and the haul-traffic/struck-by justify a dedicated AHA.
Breaking temporary access roads into steps
The steps for a Temporary Access Roads AHA follow the road:
- Plan the road alignment, grades, and haul loads
- Build the road (grading, roadbed, surfacing)
- Establish adequate stability, surface, and drainage
- Manage the roadbuilding equipment safely
- Establish haul-traffic management
- Manage the equipment, stability, and traffic hazards
- Maintain the road (grading, dust, drainage)
- Complete/restore
Each step carries a hazard, and the construction-equipment/roadbuilding, the road-stability-and-surface/failure, and the haul-traffic/struck-by are where the most significant risks concentrate.
The hazards step by step
Construction-equipment and roadbuilding
Building the road uses grading and earthmoving equipment (dozers, graders, compactors) — the mobile-equipment/ struck-by hazard during roadbuilding. The controls are mobile-equipment safety (spotters, exclusion zones, high-visibility PPE, backing alarms), qualified operators, separation of workers from operating equipment, and the equipment controls. The construction-equipment/roadbuilding is a defining hazard. (These follow the mobile-equipment fundamentals.)
Road-stability-and-surface and failure
The temporary road must be stable and adequate for the haul loads — inadequate roadbed, soft/unstable surfaces, poor drainage, or steep grades create rollover, bogging, and loss-of-control hazards for the haul vehicles. The controls are an adequate roadbed and surface for the haul loads (proper base, compaction, surfacing), safe grades (not too steep for the haul vehicles), proper drainage (preventing soft/washed-out surfaces), adequate road width, and the stability/surface controls. The road-stability-and-surface/failure is a defining hazard — inadequate roads cause rollovers and loss of control. (These follow the haul-road fundamentals.)
Haul-traffic and struck-by
The road carries haul/equipment traffic — the struck-by hazard from the haul traffic, and the traffic on the narrow temporary road. The controls are haul-traffic management (defined routes, speed limits, spacing, right-of-way rules), separating workers/pedestrians from the haul road, high-visibility PPE, spotters where needed, and the haul-traffic controls. The haul-traffic/struck-by is a defining hazard. (These follow the haul-road-traffic fundamentals.)
Dust/environmental
The dust and environmental (road dust, weather affecting the road) carries the dust hazard. The controls are dust control (watering/suppression — dust reduces visibility and is a health hazard), managing weather effects on the road, and the dust controls. (These follow the dust-control fundamentals.)
A simple Temporary Access Roads AHA structure
| Step | Hazard | Control | Standard |
|---|---|---|---|
| Plan | Grades / loads | Plan road alignment, grades, haul loads | project |
| Build | Mobile equipment | Roadbuilding equipment safety, spotters, exclusion zones | OSHA 1926.601 |
| Establish stability | Rollover / bogging | Adequate roadbed, safe grades, drainage, width | project |
| Manage equipment | Struck-by | Separation of workers from equipment, qualified operators | OSHA 1926.602 |
| Haul-traffic management | Struck-by | Defined routes, speed limits, worker separation | OSHA 1926.601 |
| Maintain | Dust / surface | Dust control, maintain surface and drainage | project |
Road-stability safety and haul-traffic management
A Temporary Access Roads AHA centers on road-stability safety and haul-traffic management. The road-stability safety addresses the road as a haul route — controlled by an adequate roadbed and surface for the haul loads (proper base, compaction, surfacing), safe grades (not too steep for the haul vehicles), proper drainage, and adequate road width, since inadequate roads cause rollovers, bogging, and loss of control. The haul-traffic management addresses the traffic on the road — controlled by haul-traffic management (defined routes, speed limits, spacing, right-of-way rules), separating workers from the haul road, high-visibility PPE, and spotters where needed. And the roadbuilding gets mobile-equipment controls. An AHA built on road-stability safety and haul-traffic management, with equipment and dust controls, addresses the hazards that define temporary access roads.
From the field: what actually goes wrong
In fourteen years across federal, heavy civil, and industrial projects, temporary access roads are the haul and access routes that carry construction traffic, so their defining hazards are the road's adequacy for the haul loads and the haul traffic itself. The road-stability-and-surface and failure hazard is a primary concern — a temporary access road must be stable and adequate for the haul loads it carries (loaded haul trucks and heavy equipment are very heavy), and an inadequate road (poor roadbed, soft or unstable surfaces, poor drainage, or steep grades) creates real hazards: haul vehicles rolling over on unstable or over-steep sections, bogging down in soft surfaces, or losing control on poor surfaces. So an adequate roadbed and surface for the haul loads (proper base, compaction, and surfacing), safe grades (not too steep for the loaded haul vehicles), proper drainage (to prevent soft or washed-out surfaces), and adequate road width are the controls. A temporary road that looks fine when built can fail under repeated heavy haul traffic if it was not built for the loads.
The haul-traffic/struck-by and the construction-equipment/roadbuilding are the other defining hazards. On the projects I have run, the temporary access road carries haul and equipment traffic, often on a narrow road, so the struck-by hazard from the haul traffic (to workers near or on the road) and the traffic management on the narrow road are concerns — controlled by haul-traffic management (defined routes, speed limits, spacing, and right-of-way rules), separating workers and pedestrians from the haul road, high-visibility PPE, and spotters where needed. Haul roads with heavy truck traffic are dangerous places for workers on foot. The construction- equipment and roadbuilding hazard is the mobile-equipment struck-by hazard during the roadbuilding itself (grading and earthmoving equipment), controlled by mobile-equipment safety and separating workers from the operating equipment. The dust (which reduces visibility and is a health hazard) and environmental effects round it out. The AHA built on road-stability safety and haul-traffic management is the one that protects the access-road crew and haul operators.
The bottom line
A Temporary Access Roads AHA names the construction-equipment/roadbuilding, the road-stability-and-surface/ failure, and the haul-traffic/struck-by hazards with specific controls — an adequate roadbed with safe grades and drainage for the haul loads (inadequate roads cause rollovers and loss of control), haul-traffic management with worker separation, and mobile-equipment safety during roadbuilding. The road stability and the haul-traffic management are the defining concerns. The AHA that manages both is the one that protects the crew and operators.
Frequently asked questions
Why does road stability matter for temporary access roads?
A temporary access road must be stable and adequate for the heavy haul loads it carries (loaded haul trucks and heavy equipment), and an inadequate road (poor roadbed, soft/unstable surfaces, poor drainage, or steep grades) creates rollover, bogging, and loss-of-control hazards for the haul vehicles. Controls are an adequate roadbed and surface for the haul loads (proper base, compaction, surfacing), safe grades (not too steep for the haul vehicles), proper drainage, adequate road width, and the stability/surface controls.
What haul-traffic hazards apply?
The road carries haul and equipment traffic, often on a narrow road, so there is a struck-by hazard from the haul traffic (to workers near or on the road) and traffic-management concerns on the narrow road. Controls are haul-traffic management (defined routes, speed limits, spacing, right-of-way rules), separating workers/pedestrians from the haul road, high-visibility PPE, spotters where needed, and the haul-traffic controls.
What roadbuilding hazards apply?
Building the road uses grading and earthmoving equipment (dozers, graders, compactors), bringing the mobile-equipment/struck-by hazard during roadbuilding. Controls are mobile-equipment safety (spotters, exclusion zones, high-visibility PPE, backing alarms), qualified operators, separation of workers from operating equipment, and the equipment controls.
What are temporary access roads?
Temporary access roads build, maintain, and use the temporary roads that provide access to and within a construction site — the graded, surfaced (gravel/aggregate) haul and access roads that carry equipment, delivery trucks, and haul trucks to the work areas. Because they are built with equipment and used as haul routes (stability and traffic), the roadbuilding, road-stability, and haul-traffic hazards apply.
Related AHAs and JHAs
- Temporary Roads AHA — the related temporary roads
- Vehicular Access and Parking AHA — the site vehicle access and parking
- Temporary Parking Areas AHA — the related parking areas
- Excavation and Trenching JHA — the earthwork for roadbuilding
Written by Mustafa Tok, CSP, ASP, CHST — OSHA Authorized Outreach Trainer with 14+ years of international construction safety experience across federal, heavy civil, and industrial projects.