Madison Bridge

(Kiem Street Bridge)

NBI Information

Location

State: Pennsylvania

County: Montgomery County

Feature Carried: Keim Street

Feature Crossed: Schuylkill River

Latitude, Longitude: 40.2343,-75.6345

Toll: On free road

Maintenance Responsibility: County Highway Agency

Structure Open, Posted, or Closed to Traffic: Bridge closed to all traffic

History

Year Built: 1935

Historical Significance: Bridge is eligible for the National Register of Historic Places.

Year Reconstructed: None

Date Closed: October 2010

Picture Date: December 11, 2022

Geometry

Lanes on Structure: 2

Lanes under Structure: 0

Skew: 0 degrees

Number of Main Spans: 8

Main Structure Type: Thru Truss

Main Structure Material: Steel

Number of Approach Spans: 0

Approach Structure Type: None

Approach Structure Material: None

Condition

Inspection Date: August 2021

Deck Condition: Poor

Superstructure Condition: Imminent Failure

Substructure Condition: Poor

Channel Condition: Poor

Culvert: Not Applicable

NBI Year: 2023

Bridge Information

The Madison Bridge, also called the Kiem Street Bridge, is an eight span rivet connected Warren Pony Truss Bridge, composed of rolled sections. The substructure is constructed from stone piers and abutments with concrete caps. The bridge was built in 1935, and is the longest surviving multi-span Warren Pony Truss in Pennsylvania.

This bridge retains excellent historic integrity with no major alterations to the truss and it still has the original cantilevered sidewalk with the original railing. However, the bridge was closed to traffic in October of 2010 due to a structurally deficient rating during a routine inspection.

There have been plans to replace this bridge, both with and without preserving the original structure. There was originally a plan to replace the bridge with a five-span concrete beam structure which would include two 11-foot traffic lanes, two 4-foot shoulders and a 6-foot-wide sidewalk. However, the discussion of funding the design has dragged for years, which has delayed the project. The most recent plans show design starting in 2023 and construction finishing in 2027.

References

  • Historic Bridges: https://historicbridges.org/bridges/browser/?bridgebrowser=pennsylvania/keim/

  • DVRPC: https://www.dvrpc.org/tip/pa/map/83742?lat=40.06391944331955&lng=-75.26315615398758&z=8.443930786668721

  • Daily Local News: https://www.dailylocal.com/2019/05/24/17m-keim-street-bridge-plans-unveiled/

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