Bridge Abutment

Scan0002

With an embankment height of 10 feet, the bridge abutment dimensions were determined as indicated on the drawing provided. Because the abutment is supported by piles, the bearing capacity was not determined for the soil directly beneath the abutment. The wall was checked for sliding and overturning. For sliding, the resistance force was calculated to be approximately 5,000 lb/ft with a driving force of 3,500 lb/ft. The abutment was resistant to sliding along the base. For overturning, the resistance moment was calculated to be 31,000 lb*ft/ft and the overturning moment was 13,500 lb*ft/ft. The abutment was safe from overturning.