HistoricBridges.org Menu: HistoricBridges.org Menu:

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

HistoricBridges.org: Bridge Browser

East Hope Bridge

East Hope Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: August 22, 2014

View Photos
and Videos
View Maps
and Links

Key Facts

Facility Carried / Feature Intersected
Wellington Place Over Strong Creek
East Hope: Bonner County, Idaho: United States
Structure Type
Concrete T-Beam, Fixed
Construction Date and Builder / Engineer
1924 By Builder/Contractor: Unknown

Technical Facts

Rehabilitation Date
Main Span Length
31 Feet (9.4 Meters)
Structure Length
31 Feet (9.4 Meters)
Roadway Width
28 Feet (8.53 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

This is a little bridge but it has some unusual details. The exact history is not documented, but the design of the bridge helps suggest the most likely story. Essentially, the bridge is a concrete t-beam bridge (reportedly built in 1924) which was widened at some later date on each side by adding two steel beams on each side. The alteration is actually the most interesting part of the bridge. These steel beams are very unusual... they are heavy duty beams spaced very closely together, and they have an unusual riveted curb integrated into them which rises above the roadway. Underneath, the interior beams have what appear to be diaphragms that have been cut, suggesting the beams were reused from some other stringer bridge, and to separate the steel beams into two pairs, the diaphragms had to be cut. These added beams also added a sidewalk to the north side. The sidewalk rests on riveted cantilevers attached to the steel beam. The cantilevers however appear to have been lengthened since welded plate has been added to the ends of the riveted cantilevers. The bridge is skewed, and apparently to accommodate this, the sidewalk is supported at one end with an unusual, lightweight built-up steel beam with v-lacing.

So the question is what explains the unusual beams that were added to the bridge? The most likely scenario seems to be that the beams are salvaged from a railroad stringer (multi-beam) bridge. Railroad origin explains most of the unusual details. Railroad use would explain why the beams are so heavy and spaced closely together. Railroad bridges typically have extremely heavy-duty construction. Railroad origin also may explain the unusual riveted curb. The curb may have been to contain a ballasted deck for a railroad. A ballasted deck is one that is filled with gravel, upon which the tracks are laid. The sidewalk is also explained by railroad origins. A railroad bridge would often have a single, very narrow, sidewalk for workers to get across or access the bridge. The sidewalk would often be narrower than a typical public highway bridge sidewalk, which would explain why when the beams were reused the sidewalk cantilevers had additional plate welded to them to allow for a wider sidewalk. As for the v-laced beam that supports the sidewalk at one end, it is not certain where it came from. However riveted beams like this were common on the railroad, ranging from truss bridge bracing, steel bents, to signal supports, so even this beam might have come from a railroad. The pipe railings which are found on the sidewalk are also the sort of thing that would be common on a railroad access sidewalk, so the railings may have come with the beams when they were salvaged.

The National Bridge Inventory gives a rehabilitation date of 1974 for this bridge. It is possible this refers to when the beams were added.


Photo Galleries and Videos: East Hope 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: East Hope 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