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Strimples Mill Road Bridge

Hunterdon County, New Jersey
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Photos 

portal view from east end

Photo taken by Andrew Pearce in September 2012

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Map 

Description 

from the county survey: "The single-span pin-connected Pratt thru-truss bridge is supported on random ashlar abutments with U-type wingwalls. The trusses appear to be original with the exception of the floor beams, stringers and deck that have been recently replaced, the addition of welded corner braces to the top laterals, and welded braces extending from the portal struts to the exterior floor beams. The trusses are pin-connected throughout. The portals and top chord consist of two channels, a cover plate and lacing. The intermediate verticals consist of two channels with lacing. The lacing on the verticals parallels the bridge centerline. The bottom chord eyebars and diagonal eyebars have forged eyes. The counters are provided with sleeve nuts for adjustment. The end panel vertical hanger has a fourprong, claw-like ends which engage the pins directly over and in line of the U-bolt floor beam hanger. Such an arrangement, also seen on King Bridge Company spans from the same era, means that the hangers are out of phase or reversed. The expansion bearings consist of nested rollers."

View Uglybridges.com report

Facts 

Overview
Through truss bridge over Lockatong Creek on Strimples Mill Road
Location
Hunterdon County, New Jersey
Status
Open to traffic
History
Built 1897; rehabilitated 2005
Builder
- Wrought Iron Bridge Co. of Canton, Ohio
Design
Pratt through truss
Dimensions
Length of largest span: 93.2 ft.
Total length: 95.1 ft.
Deck width: 14.8 ft.
Vertical clearance above deck: 13.1 ft.
Skew angle
10 degrees
Recognition
Eligible for the National Register of Historic Places
Approximate latitude, longitude
+40.43694, -75.01167   (decimal degrees)
40°26'13" N, 75°00'42" W   (degrees°minutes'seconds")
Approximate UTM coordinates
18/499010/4476255 (zone/easting/northing)
USGS topographic map
Lumberville
Inventory numbers
NJ 10XX481 (New Jersey bridge number)
BH 25320 (Bridgehunter.com ID)
Inspection (as of 08/2011)
Deck condition rating: Very Good (8 out of 9)
Superstructure condition rating: Satisfactory (6 out of 9)
Substructure condition rating: Satisfactory (6 out of 9)
Sufficiency rating: 49.4 (out of 100)
Average daily traffic (as of 2011)
117

Categories 

19th Century (3,816)
Built 1897 (130)
Built during 1890s (1,555)
Corrugated deck (519)
Hunterdon County, New Jersey (125)
NR-eligible (3,749)
New Jersey (749)
One-lane traffic (7,111)
Open (28,293)
Owned by county (16,482)
 Pin-connected (1,519)
Pratt through truss (3,162)
Pratt truss (5,653)
Skewed (4,080)
Span length 75-100 feet (4,718)
Through truss (9,200)
Total length 75-100 feet (4,793)
Truss (23,558)
Wrought Iron Bridge Co. (195)

Update Log 

  • September 14, 2012: Updated by Andrew Pearce: Added category "Pin-connected" and pictures

Sources 

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