Rating:
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Chambers Rock Road Bridge

New Castle County, Delaware

Photos 

Chambers Rock Rd. Bridge plaque

Plaque located on truss member on eastern side of bridge

Photo taken by Frank Danberg in August 2008

Enlarge

BH Photo #121238

Map 

Street View 

Description 

Thompson's Station Bridge (State Bridge 216) is one of six intact historic metal highway truss bridges in Delaware. With its Warren pony truss configuration, Thompson's Station Bridge is typical of the small spans built along local roadways in rural areas throughout the country in response to increasing traffic in the late 19th and early 20th century. In addition, structures like Thompson's Station Bridge played a vital role in the economic development of rural areas during the last quarter of the 19th century and well into the 20th century, as local transportation networks underwent initial phases of development.

-- Historic American Engineering Record

Facts 

Overview
Warren pony truss bridge over White Clay Creek on Chambers Rock Road in Newark
Location
New Castle County, Delaware
Status
Open to traffic
History
Built 1928; rehabilitated 1995
Builders
- Belmont Iron Works of Chester, Pennsylvania
- Charles E. Grub (Engineer)
- New Castle County Engineer's Office
Design
Riveted Warren pony truss
Dimensions
Length of largest span: 66.9 ft.
Total length: 68.9 ft.
Deck width: 16.4 ft.
Recognition
Eligible for the National Register of Historic Places
Also called
Thompsons Station Bridge
Thompson's Station Bridge
Approximate latitude, longitude
+39.73280, -75.76002   (decimal degrees)
39°43'58" N, 75°45'36" W   (degrees°minutes'seconds")
Approximate UTM coordinates
18/434872/4398377 (zone/easting/northing)
Quadrangle map:
Newark West
Average daily traffic (as of 2015)
3,354
Inventory number
BH 12286 (Bridgehunter.com ID)
Inspection report (as of April 2017)
Overall condition: Fair
Superstructure condition rating: Fair (5 out of 9)
Substructure condition rating: Satisfactory (6 out of 9)
Deck condition rating: Good (7 out of 9)
Sufficiency rating: 43.7 (out of 100)
View more at BridgeReports.com

Categories 

Belmont Iron Works (4)
Built 1928 (1,230)
Built during 1920s (10,328)
Charles E. Grub (2)
Delaware (164)
Functionally obsolete (5,762)
Have street view (29,901)
NR-eligible (4,125)
New Castle County Engineer's Office (2)
New Castle County, Delaware (113)
 One-lane traffic (7,995)
Open (41,203)
Owned by state (16,651)
Pony truss (17,224)
Span length 50-75 feet (10,549)
Total length 50-75 feet (9,720)
Truss (36,759)
Warren pony truss (3,595)
Warren pony truss with alternating verticals (806)
Warren truss (7,089)

Update Log 

  • December 27, 2014: HAER photos posted by Dave King
  • March 19, 2011: New Street View added by J.P.
  • August 14, 2008: New photos from Frank Danberg

Sources 

  • Frank Danberg
  • J.P. - wildcatjon2000 [at] gmail [dot] com
  • HAER DE-37 - Thompson's Station Bridge, Spanning White Clay Creek on Chambers Rock Road (N329), Newark, New Castle County, DE
  • Delaware DOT
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Comments 

Chambers Rock Road Bridge
Posted November 30, 2011, by Cawwac (cawhitman [at] sbcglobal [dot] net)

Do you know who the architect was or the project engineer for this bridge? Any information would be appreciated. Thank you

Chambers Rock Road Bridge
Posted November 30, 2011, by Cawwac (cawhitman [at] sbcglobal [dot] net)

Do you know who the architect was or the project engineer for this bridge? Any information would be appreciated. Thank you