HistoricBridges.org Menu: HistoricBridges.org Menu:

We Recommend These Resources:
Bach Steel - Experts at historic truss bridge restoration.

HistoricBridges.org: Bridge Browser

Ganson Street Bridge

Ganson Street Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: May 21, 2009

View Photos
and Videos
View Maps
and Links

Key Facts

Facility Carried / Feature Intersected
Ganson Street Over Grand River
Jackson: Jackson County, Michigan: United States
Construction Date and Builder / Engineer
1956 By Builder/Contractor: Unknown

Technical Facts

Rehabilitation Date
Not Available or Not Applicable
Main Span Length
39 Feet (12 Meters)
Structure Length
39 Feet (12 Meters)
Roadway Width
46 Feet (14.02 Meters)
1 Main Span(s)
NBI Number

Historic Significance Rating (HSR)
View Information About HSR Ratings

Bridge Documentation

View Archived National Bridge Inventory Report - Has Additional Details and Evaluation

The bridge retains original and unaltered R4 style railings. It displays the less common R4 railing design which uses metal posts instead of concrete posts.

This bridge is one of the oldest examples of a pre-stressed concrete bridge in Michigan, with a 1956 construction date. Because of this fact, the bridge was highlighted in the most recent update to Michigan's Historic Bridge Inventory and is considered eligible for the National Register of Historic Places.

Pre-stressed concrete was a material and construction method that would go on to become the most common form of bridge construction in the late 20th Century and to the present day. As such, the material has a rather wicked reputation among historic bridge enthusiasts since this form of bridge is what is used to demolish and replace historic bridges.

Interestingly, the bridge's deck and superstructure is listed in "poor" condition in the National Bridge Inventory and evaluated as structurally deficient. This bridge hardly made it past 50 years before gaining this evaluation. This calls into serious question claims made by some states like Pennsylvania who claim that historic truss bridges should be demolished and replaced with modern bridges because the new bridges require less maintenance and will last 100 years. Pre-stressed concrete is not a miracle material, is not an excuse to demolish historic bridges, and  it deteriorates just like any bridge material especially as long as salt is used to deice roads. The Ganson Street Bridge suggests that pre-stressed concrete is far less long-lived than the steel and concrete found in many historic bridges.


Photo Galleries and Videos: Ganson Street Bridge

View Photo Gallery
Bridge Photo-Documentation
Original / Full Size Photos
A collection of overview and detail photos. This gallery offers photos in the highest available resolution and file size in a touch-friendly popup viewer. Alternatively, Browse Without Using Viewer
View Photo Gallery
Bridge Photo-Documentation
Mobile Optimized Photos
A collection of overview and detail photos. This gallery features data-friendly, fast-loading photos in a touch-friendly popup viewer. Alternatively, Browse Without Using Viewer


Maps and Links: Ganson Street Bridge

Coordinates (Latitude, Longitude):

View Bridge Location In:

Bridgehunter.com: View listed bridges within a half mile of this bridge.

Bridgehunter.com: View listed bridges within 10 miles of this bridge.

Google Maps

Google Streetview (If Available)

Bing Maps


Apple Maps (Via DuckDuckGo Search)

Apple Maps (Apple devices only)


HERE We Go Maps

ACME Mapper

Waze Map

Android: Open Location In Your Map or GPS App

Flickr Gallery (Find Nearby Photos)

Wikimedia Commons (Find Nearby Photos)

Directions Via Sygic For Android

Directions Via Sygic For iOS and Android Dolphin Browser

USGS National Map (United States Only)

Historical USGS Topo Maps (United States Only)

CalTopo Maps (United States Only)

Home Top


About - Contact

© Copyright 2003-2021, HistoricBridges.org. All Rights Reserved. Disclaimer: HistoricBridges.org is a volunteer group of private citizens. HistoricBridges.org is NOT a government agency, does not represent or work with any governmental agencies, nor is it in any way associated with any government agency or any non-profit organization. While we strive for accuracy in our factual content, HistoricBridges.org offers no guarantee of accuracy. Information is provided "as is" without warranty of any kind, either expressed or implied. Information could include technical inaccuracies or errors of omission. Opinions and commentary are the opinions of the respective HistoricBridges.org member who made them and do not necessarily represent the views of anyone else, including any outside photographers whose images may appear on the page in which the commentary appears. HistoricBridges.org does not bear any responsibility for any consequences resulting from the use of this or any other HistoricBridges.org information. Owners and users of bridges have the responsibility of correctly following all applicable laws, rules, and regulations, regardless of any HistoricBridges.org information.

Admin Login