This project is located on County Highway 14 (FAS 777/New Douglas Avenue) at its crossing of Dry Fork Creek approximately 1.5 miles south of Sorento, Illinois. The new three-span replacement structure consists of a precast, prestressed concrete deck beam bridge with a hot-mix asphalt wearing surface and waterproofing membrane system. Work involved the removal of the existing three-span continuous steel beam bridge with a cast-in-place concrete deck supported on spill-thru concrete abutments with deep spread footings and solid concrete piers with tapered walls and spread footings, which measured approximately 169’-6” back-to-back of abutments and 27’-8” out-to-out deck. The new structure has 33″ PPC deck beams spanning 54’-9”, 76’-0” and 54’-9” center-to-center of bents with an overall length of 188’-0” back-to-back of abutments with a clear roadway width of 30′-0″ at a zero skew, built on an average grade of approximately 4.5% to accommodate part of a 540’ sag vertical curve over most of the bridge.

The bridge was designed in accordance with the AASHTO LRFD Bridge Design Specifications with the HL-93 loading and is in Seismic Performance Zone 2 with Site Soil Class D. The substructure consists of spill-through pile bent abutments on driven H-piles and pile bent piers with H-piles set-in-rock. The work for this Project included approximately 712 feet of approach roadway work on an improved vertical alignment to better meet the design and operating speeds, including the sag vertical curve over the bridge to minimize approach work. Funding application; topographic and property survey; permitting; geometric design; design reports; legal surveys; easement and right of way plats; bridge hydraulics and design; and preparation of plans, specifications and estimates were performed by HMG. The Awarded Bid was $1,128,888.00 with the majority of project funding from IDOT’s Major Bridge Program under the Federal Surface Transportation Program.