Ossenfort Road Bridge Replacement
Juneau was contracted by the City of Wildwood, Missouri, to replace an existing simple span bridge 55 feet long by 16 feet wide. Juneau’s tasks included topographic and property surveying, evaluating various bridge replacement options, and preparing the final construction documents and right-of-way plans. Construction phase services included shop drawing reviews and answering contractor’s RFI’s.
The Ossenfort Road Bridge is 80% Federal funded and administered through East-West Gateway. Plan review is provided by MoDOT.
The proposed option chosen by the City for this project is a single span structure, 78 feet long and 34 feet wide. The roadway alignment was improved to provide for a 40 MPH design and the bridge structure was located on a horizontally curved section of this alignment. The bridge superstructure consisted of precast prestressed concrete girders with a reinforced concrete deck and safety barriers. The substructure consisted of integral bents supported on steel bearing piles keyed into rock. The bridge structure was constructed in a single stage, while the roadway improvement, both north, and south of the bridge were to be staged in order to allow the neighboring property owners access to their property.
The bridge’s superstructure is located such that it is above the 25-year design high water event plus a minimum of 1 foot of freeboard. It is also above the 100-year design high water event and produces less than 1 foot of backwater over the natural or no bridge condition.
