Some statistics from our recent trail building sessions.
- 340m built.
- 90m of old trail filled back in.
- 41 hours build time.
- 10 days from start to finish.
- 14 volunteers involved.
- 150 person hours.
- 8m of new trail per hour and just over 2m per person hour.
- Approx 25 tonnes of material dropped using a 250Kg barrow.
- Hence about 100 barrow loads over 4 days, meaning 25 per day. An average of 3 loads per hour.
- Each power barrow load of 250kg covered 3.4m of trail.
- So about 10m per hour on the weekends.
- A normal barrow of 100kg would cover 1.4m of trail.
- That’s about 70kg of material per metre.
- At £13 per tonne (inclusive of VAT and delivery etc) it cost 92p per metre in material.
- Taking a density for crushed stone of 1,400kg/m3, a width of 800mm and 70Kg per metre implies a depth of 62mm. ie: a depth of 2.5″.
- 1.8 tonnes of material per volunteer. That’s equivalent of 18 normal barrow loads per person.
Whichever way you look at it, the power barrow makes a massive difference to the rate at which trail can be surfaced.