Ave 392 Sand Creek Bridge
This project consists of the replacement of an existing two lane,
four-span reinforced concrete flat slab bridge on reinforced concrete
pier walls and reinforced concrete closed end wall abutments.
The existing structure which has been flagged as functionally obsolete
due to the narrow bridge width, was originally constructed in
1939, therefore making it a difficult candidate for retrofit and widening.
The replacement structure will consist of a three-span reinforced
concrete flat slab bridge of sufficient width to carry two lanes
of traffic and wide farm equipment. The new bridge will be designed
to support all highway legal loads, and the slightly longer
spans in conjunction with rock slope protection along the embankments,
well help to improve the hydraulic capacity at the structure.
The new structure will incorporate Type 80 “open type” concrete
barriers to match other bridges currently being designed by the
County. With low average daily traffic and a short detour distance,
Avenue 392 will be closed to through traffic during construction.
Bridge construction is expected to be complete within a 4-6 month
window depending on weather and creek conditions.