This county also has the historic Stanon Stastion Bridge.
 |
| Street View, Aug 2016 |
 |
| Metrotrails posted Crossing the Rockefellow's Mills truss bridge over the South Branch of the Raritan River east of Flemington NJ, built in 1900 by the bridge company of Canton Ohio. Luis Sánchez: Any idea whether the decorative elements—such as plaques, portal cresting, and finials—are original or replicas added during the 2010 rehabilitation? Beautiful bridge. Thanks for posting. Ray Vernon: Luis Sánchez yes it has been replaced after the mass restoration. I lived at the other end of the road. |
This one gets my vote for the best looking non-Phoenix column Pratt in the county. It is simply a beautiful bridge, and a nice surprise; it's only about 3 minutes from downtown super-suburban Flemington NJ, after a short drive out the industrial end of River Road. Turn the corner and this bridge suddenly appears from under the trees as if you've jumped back 100 years in time.The 2010 rehabilitation is covered at http://www.historicbridges.org/bridges/browser/?bridgebrowse...along with numerous "before" pictures. While the renovated bridge is no longer 100% original (new railings and floor beams) it is 5 times stronger than before, going from a 3 ton rating to a 15 ton rating.This bridge is also a bit atypical for the area, with a single span of nearly 140 feet [42.6m]. Most other old bridges in the county are two span ponies for that width. The A-frame portal bracing is the only sway bracing on the bridge. There is none where the verticals meet the top laterals, although such bracing is not at all uncommon on through trusses in the area.This bridge is almost exactly the same as the Fryer's Ford bridge that collapsed. Same builder, same age. Much better cared for. http://bridgehunter.com/ar/conway/fry/[ArchivedBridgeHunter]
A comment noted the stainless steel pins.
 |
| 2012 photo by Andrew Pearce via BridgeHunter |
The rehabilitation work of the bridge itself deserves brief discussion. The bridge had a posted three ton weight limit prior to rehabilitation and following rehabilitation the bridge's condition was improved allowing for a higher posted weight limit of 15 tons. The bridge was dismantled with its parts being cleaned, restored, and repainted in a shop setting. This method of rehabilitation for pin-connected truss bridges is the best method because it fully eliminates all pack rust and allows the fabricator to address all areas of section loss and pack rust in the bridge members. What is unusual is the method in which the bridge was dismantled and reassembled. A temporary Bailey truss was installed inside the truss to hold the bridge together while it was being dismantled and also during reassembly. This method varies from the typical method of simply moving the entire bridge off and on its abutments by picking the truss with a crane, with dismantling and reassembling taking place on nearby land. The Bailey truss method employed here is continuing evidence that numerous methods are available to restore historic metal truss bridges, even bridges where traditional methods are not feasible. The Bailey truss method is useful for situations where nearby land for disassembly and reassembly on land is not available, or in situations where space limitations make the use of a large crane to lift the entire truss difficult.[HistoricBridges]
Three Hunterdon County photos via HistoricBridges
 |
| 1 |
 |
| 2 |
 |
| 3 |
No comments:
Post a Comment