County Bridge No. 256, Gearhard’s Mill Bridge)
- Year Built: 1891
- Type: Pratt Thru Truss
- Number of Spans: 1
- Length: 119'
- Width: 17'0"
- Builder: Nelson and Buchanan of Chambersburg and Pittsburgh, Pennsylvania
- Location: Milford Township, Bucks County
- Carries: Nursery Road (T-334) over Unami Creek
- Preservation Assistance: Unknown
- BRKey: 7496
The Nursery Road bridge is a pin connected Pratt thru truss built in 1891 by Nelson and Buchanan of Chambersburg, PA, an important Pennsylvania bridge builder. This single-span bridge is 119' long and 17' wide. It carries Nursery Road (T-334) over Unami Creek in Milford Township in Bucks County and is eligible for listing in the National Register of Historic Places.
The character-defining features of this bridge include the truss form (Pratt thru), method of truss connection (pinned), and structural members to include the top and bottom chords, vertical and diagonal members, sway bracing and features of the portal. An unusual feature of this bridge is the lower panel point connection detail where the vertical is bolted to the top flange of the floorbeam, and the pin joining the lower chord and diagonals/counters is at a cut out in the floorbeam. A strap pin plate that extends around the end of the floorbeam connects the pin to the floor beam.
To preserve this historic structure, ownership of the bridge in its entirety will be transferred to an interested party for removal to a new location. The new owner will be responsible for costs associated with removal, rehabilitation and long-term maintenance of the structure. If you or your organization is interested in assuming ownership of this historic bridge, please contact Tyra Guyton of the Pennsylvania State Historic Preservation Office at email@example.com or at (717) 346-0617 or Monica Harrower of PennDOT District 6 at firstname.lastname@example.org or at (610) 205-6709.