Pescadero Creek Bridge (35C0018) is a three-span, reinforced-concrete box-girder structure measuring 140 feet in length. The concrete railings consist of wide posts with two horizontal rails. One of the railing end posts has an inset metal plaque with the date of construction and the names of the contractor and county supervisors. The use of two separate box girders on the Pescadero Creek Bridge is unusual, as later designs used a single girder of multiple cells with a continuous bottom soffit. The design illustrates the fact that this was the pioneering period for this type of bridge, which was a variation on the traditional T-beam design.