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Mission Springs News: Current Capital Projects: New Entrance Bridge
Current Capital Projects

Chronicles of a Bridge

Make site ready.  Remove house.

The site for the new bridge was selected based upon its location within Mission Springs as well as the traffic line-of-sight on Lockhart Gulch Road.

The site was cleared in October of 2007.

demolish cabin to make way for bridge

site is ready for more work grading site.

Construction on the foundations began in June of 2008.


drilling piers on Lockhart Gulch

The foundations for the steel and concrete bridge structure consists of two abutments, one on each side of the creek. Each abutment is supported and held in place by piers. Each pier is approximately 30 inches in diameter and 30 feet deep. The piers were constructed of steel-reinforced baskets that were set in place with a special mix of concrete.

Drilling 30 foot abutment piers

Steel placed in the groundPier steel basket

Under the Mission Springs side abutment there are 10 piers and on the Lockhart Gulch Road side there are 15 piers.

Drilling for piers

Filling abutment with concrete

Piers completed

abutment completed

Setting the middle steel beams

Placing the side rails

Cross members bolted

The deck of the bridge is supported by five custom manufactured steel beams that are bolted to the abutments.

Setting the middle steel beams

All steel in place

It took two full days for the cranes to move the steel beams into place. Once the beams were in place, they were all connected.


steel trays for the concrete

Steel trays were attached to the beams and two layers of steel reinforcement bars will support and strengthen the deck of concrete as it hardens.

complete installing the steel trays

The deck of the bridge is made of TEN INCHES of concrete!

preparing to pump concrete

concrete on the bridge

Once the concrete was poured and in place, it needed 28 days to cure and reach its required strength.

finishing the concrete


Asphalting the road

 

The last project was to repair and asphalt the roads leading up to the bridge and to add the appropriate striping and traffic signs.

The bridge was completed and opened for use on December 16, 2008.

a view from under the bridge

The final product is very attractive,

and has little or no impact

on its beautiful location.

Mission Springs is grateful

for the quality of workmanship

that went into this bridge,

and to everyone who made

a financial contribution,

making this project a reality.




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