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Mulberry Street Ramp Bridge

Photos 

Looking west (and a little to the north)

Ramp enters/exits onto Cameron St.

Photo taken by Jodi Christman Nov. 11, 2010

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BH Photo #185747

Map 

Street Views 

Description 

FROM THE 1996-2001 PENNSYLVANIA HISTORIC BRIDGE SURVEY: The bridge carries a 2 lane on/off ramp of the Mulberry Street viaduct (22 3012 0080 0233) over a 2-lane city street and creek in an area of late 19th and early 20th century industrial development east of downtown Harrisburg. The ramp serves to connect the viaduct to Cameron Street (SR 230). The ramp is located on the north side of the main viaduct. South of the ramp is a parking lot and an early 20th century industrial building. The setting does not have the cohesiveness or integrity of a historic district.

The 5 span, 584'-long, four-ribbed, closed spandrel arch bridge is an integral part of the larger Mulberry Street viaduct, constructed from 1907 to 1909. The ramp's 5 arch spans are nearly identical to the viaduct's 20 main spans. The distinctive piers are ornamented in the Classical style with pilasters and entablature. In 1957, the deck was replaced with removal of the original three-rail high concrete railings and replacement with tubular metal railings.The viaduct including ramp is historically and technologically noteworthy as an early and innovative application of its type/design. It ranks as one of the two oldest of nine ribbed, closed spandrel arch bridges identified in the survey. The viaduct is considered the first major reinforced concrete highway bridge in Harrisburg and was built to replace a previous steel truss viaduct over the Pennsylvania RR's yard.

Facts 

Overview
Concrete arch bridge over Paxton Creek on Mulberry Street Ramp in Harrisburg
Location
Harrisburg, Dauphin County, Pennsylvania
Status
Open to traffic
History
Built 1907-09; rehabilitated 1957
Builders
- James M. Fuertes
- McCormick & Co.
Design
Ribbed closed-spandrel arch
Dimensions
Length of largest span: 94.2 ft.
Total length: 584.0 ft.
Deck width: 22.3 ft.
Recognition
Eligible for the National Register of Historic Places
Approximate latitude, longitude
+40.26176, -76.87308   (decimal degrees)
40°15'42" N, 76°52'23" W   (degrees°minutes'seconds")
Approximate UTM coordinates
18/340722/4458493 (zone/easting/northing)
Quadrangle map:
Harrisburg East
Inventory numbers
PA 22 7301 4000 4021 (Pennsylvania Bridge Management System number)
PANBI 14743 (Pennsylvania BRKEY bridge number on the 2011 NBI)
BH 30837 (Bridgehunter.com ID)
Inspection (as of 09/2009)
Deck condition rating: Good (7 out of 9)
Superstructure condition rating: Good (7 out of 9)
Substructure condition rating: Satisfactory (6 out of 9)
Appraisal: Functionally obsolete
Sufficiency rating: 80.9 (out of 100)
Average daily traffic (as of 1997)
2,000

Update Log 

  • January 17, 2017: New photos from Dana and Kay Klein
  • January 7, 2012: Updated by Jodi Christman: Added builders and description
  • November 13, 2010: New photos from Jodi Christman
  • November 12, 2010: New photo from Jodi Christman

Sources