Specifications include, but are not limited to: The County of Riverside Transportation Department (COUNTY) is seeking proposals from qualified engineering professionals to provide construction management services for the Hamner Avenue Bridge Project. The project proposes to replace the existing Hamner Avenue Bridge and widen the roadway from Detroit Street to Citrus Street. The new bridge will include three 12-foot lanes and a 4-foot shoulder in each direction (northbound and southbound) that will be separated by a 4-foot curbed median. A 12- foot, barrier-separated multipurpose trail will be constructed on the east side of the bridge. North and south of the bridge, Hamner Avenue will include three 12-foot lanes and a 4- foot shoulder in each direction, along with a 5-foot sidewalk on the east side of the roadway. A trail ramp will be constructed at the southeast end of the bridge that will connect the planned Regional Santa Ana River Trail to the barrier-separated multipurpose trail on the new Hamner Avenue Bridge. This proposed project will also include relocating utilities, either into or outside the new bridge, as needed; constructing retaining walls, installing signage and 2 signal modifications.