Single A-Frame Bridges at the Jamboree

A triumphant success—posing on their Single A-Frame Bridge

A Triumphant Success—posing on their Single A-Frame Bridge

In the Pioneering Area of the 2013 national jamboree, we put together a couple of Single A-Frame Bridge kits, so Scouts and Venturers could build this simple crossing bridge during their visit to Garden Ground Mountain. Each kit included:

  • 2 – pre-constructed walkways
  • 2 – 12′ leg spars (shear legs)
  • 1 – 5′ transom spar
  • 1 – 6′ ledger spar
  • 2 – pre-positioned anchors
  • 4 – pioneering stakes
  • 2 – guy lines
  • 5 – lashing ropes

Whenever a crew wanted to build a bridge, we provided an overview of the design and gave them a quick introduction to tying a rope tackle and the Japanese Mark II square lashingWhat follows are some photo montages of the Single A-Frame bridges built from the kits during the jamboree. For larger and largest views, click on the photos once, and then once again:

Positioning their A-Frame in the ditch while preparing the guy lines, and lashing the walkways to the transom.

Positioning their A-Frame in the ditch while preparing the guy lines, and lashing the walkways to the transom.

Lashing the ledger tightly to the legs and putting tension  on a guy line.

Lashing the transom to the legs and putting tension on a guy line.

Positioning their A-Frame and hammering stakes in the corners of the walkways.

Lashing on the Transom

Lashing on the transom to the legs.

Lashing on the ledger and holding the A-Frame up while adjusting the height of the transom.

Lashing on the ledger and holding the A-Frame up while adjusting the height of the transom.

The shear lashing at the top of the legs, and lashing the ledger at the bottom.

The shear lashing at the top of the legs, and lashing the ledger at the bottom.

Lashing the A-Frame legs with a shear lashing, and lashing on the ledger.

Lashing the A-Frame legs with a shear lashing, and lashing on the transom.

Carrying their A-Frame to the ditch and placing the walkways on the transom.

Carrying their A-Frame to the ditch and placing the walkways on the transom.

Lashing on the transom and attaching the walkways.

Lashing on the transom and attaching the walkways.

Tightly frapping a square lashing for the transom and working together to join the walkways to the A-Frame.

Tightly frapping a square lashing for the transom and working together to join the walkways to the A-Frame.

Strop lashing the walkways to their A-Frame.

Strop lashing the walkways to their A-Frame.

On occasion, a pair of Scouts wanted to build a bridge, and with persistence, and the help of staff or friendly Scouter, they were able to get it done.

Dynamic Duos!

Dynamic Duos!

JAMBOREE PIONEERING AREA: BRIDGES

JAMBOREE PIONEERING AREA: MAIN PAGE

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Categories: Involved Campsite Improvement, Scout Pioneering | Tags: , , , , , , , , , , , , , , , | 4 Comments

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4 thoughts on “Single A-Frame Bridges at the Jamboree

  1. Pingback: Jamboree Pioneering Area: Camp Gadgets, Rope Making & Instruction | SCOUT - PIONEERING

  2. Pingback: 2013 Jamboree, Pioneering Area: Bridgeway | SCOUT - PIONEERING

  3. Pingback: Single A-Frame Bridge Pictorial | SCOUT - PIONEERING

  4. Pingback: Single A-Frame Bridge | SCOUT - PIONEERING

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