This standard concrete slab bridge crosses 320th Street west of Coon Rapids.
Built in 1913, the bridge features a standard design. This standard design is considered to be a concrete slab, although it is commonly considered a box culvert. The bridge rests on concrete substructures.
Single span slab/culvert structures were built at many road crossings during the relocation and reconstruction of this route. The design is extremely common, and is well suited for small spans.
Overall, the bridge appears to be in fair to poor condition. Significant spalling and cracking has occurred on the entire structure.
The author has ranked the bridge as being locally significant, due to the old age and exceedingly common design.
The photo above is an overview.