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Stone Arch Bridges

Architecture standing the test of time

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Category Archives: Maintenance

Improving a Stone Arch Bridge’s Serviceability by Strengthening: Part 1

Wolf Creek Bridge

To determine how to strengthen a stone arch bridge, it helps to understand how it behaves when overloaded in order to understand the forces at play.

Posted byStoneArchBridgesAugust 13, 2021August 23, 2021Posted inMaintenanceTags:Forces

Mortarless Bridge Maintenance: Part 2

Mortarless Stone Bridge

Mortarless stone arch bridges need extra care to ensure they are not overwhelmed by foliage and that friction between stones remains high.

Posted byStoneArchBridgesJuly 16, 2021July 16, 2021Posted inMaintenanceTags:Forces, Stones

Mortarless Bridge Maintenance: Part 1

Drystack Arch

A key concern when maintaining a mortarless stone arch bridges is how stones can be worked loose by vibration. There are ways to prevent this.

Posted byStoneArchBridgesJuly 2, 2021July 2, 2021Posted inMaintenanceTags:Design, Forces, Quality of Construction, Stones

Care of Stone Arch Bridges With Insufficient Waterway

Debris Blocking an Arch

Stone arch bridges with very insufficient waterway often need a little more care and maintenance than a larger bridge to remain useful.

Posted byStoneArchBridgesMay 22, 2021February 4, 2022Posted inMaintenanceTags:waterway

Scour Aprons: Simple and Effective Protection for Stone Bridges

Main Arch Fromm Bridge

Scour aprons remain the most effective way to prevent undermining of a bridge structure by hindering the water from directly eroding the foundations.

Posted byStoneArchBridgesMarch 26, 2021October 14, 2022Posted inMaintenance

Widening a Stone Arch Bridge

Stone Bridge North of Dexter

While many historic stone arch bridges are too narrow by modern traffic standards, there are several viable ways to non-destructively widen them.

Posted byStoneArchBridgesDecember 8, 2020July 29, 2021Posted inMaintenanceTags:Design, Fill

Waterline Deterioration: The Achilles Heel of Limestone Bridges

Waterline Deterioration

The weakest point of a stone arch bridge of limestone is the waterline masonry, for it is prone to disintegrating in water.

Posted byStoneArchBridgesOctober 20, 2020January 26, 2022Posted inMaintenanceTags:Design, Repair, Stones

Wing Walls: Importance and Repair

Black Crook Creek Bridge

Wingwalls can be important to a stone arch bridge’s structural integrity. While easily damaged, numerous ways to repair or replace them exist.

Posted byStoneArchBridgesAugust 25, 2020February 4, 2022Posted inMaintenanceTags:Debris, Foundations, Masonry

Deteriorated Stones in a Bridge

Deteriorated Stonework

Deteriorated stones in a stone arch bridge are almost inevitably a sign of water infiltrating into the structure and needs to be taken seriously.

Posted byStoneArchBridgesJuly 7, 2020July 29, 2021Posted inMaintenanceTags:Mortar, Stones

3 Ways to Prevent Scour

Streambed Pavement

There are several way to prevent scour, which is the worst enemy of stone arch bridges with shallow foundations as is common.

Posted byStoneArchBridgesMarch 10, 2020August 14, 2021Posted inMaintenanceTags:Foundations

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