HistoricBridges.org Menu: HistoricBridges.org Menu:


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

HistoricBridges.org: Bridge Browser

Robert McAfee Bridge

Robert McAfee Bridge

Primary Photographer(s): Nathan Holth and Rick McOmber

Bridge Documented: August 2, 2007

View Photos
and Videos
View Maps
and Links

Key Facts

Facility Carried / Feature Intersected
California Avenue Over Woods Run, McClure Avenue, and Eckert Street
Location
Pittsburgh: Allegheny County, Pennsylvania: United States
Structure Type
Metal One-Hinged Solid Ribbed Spandrel Braced Deck Arch, Fixed and Approach Spans: Metal Stringer (Multi-Beam), Fixed
Construction Date and Builder / Engineer
1928 By Builder/Contractor: Fort Pitt Bridge Works of Pittsburgh, Pennsylvania and Engineer/Design: Pittsburgh Department of Public Works

Technical Facts

Rehabilitation Date
1981
Main Span Length
375 Feet (114.3 Meters)
Structure Length
642 Feet (195.7 Meters)
Roadway Width
38 Feet (11.58 Meters)
Spans
1 Main Span(s) and 7 Approach Span(s)
NBI Number
27301000030520

Historic Significance Rating (HSR)
View Information About HSR Ratings

Bridge Documentation

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

This stunning bridge is an example of the bold bridge engineering that Pittsburgh was known for in the early 20th Century. It is a rare example of a steel deck arch bridge that features a single-hinge design. The hinge can be seen as a giant pin at the center of the arch. Because of this rare design, this bridge enjoys a high level of historic significance, and thus its maintenance and preservation is important.

 This bridge was altered in 1981 when stone arch approach spans and original railings were replaced with modern structures. This was a serious blow to the aesthetic qualities of the deck, however the superstructure remains intact and attractive looking.

This bridge is next to the Ohio River Boulevard Bridge.

Information and Findings From Pennsylvania's Historic Bridge Inventory

Discussion of Bridge

The 8-span, 642'-long bridge has a 380'-long, 1-hinge, steel deck arch main span with two, built-up arch ribs, and Pratt trussing to carry the deck. Built in 1928, the bridge was originally flanked by stone arch approach spans but these were replaced by steel stringer spans in 1981. As part of the project to widen the bridge, a cantilevered deck section with safety-shape concrete parapets was placed on the steel arch. Although the bridge has lost its approach spans and original railing treatment, the 1-hinge steel arch span is complete and still functioning as originally designed. The 1-hinge design is very uncommon and makes the arch statically determinate, an advantage for calculating stresses and proportioning members to achieve an economical design. In the United States, a very limited number of 1-hinge steel arch bridges were built between 1920 and 1940. This 1928 example dates from Pittsburgh's golden age of bridge building when city and county engineers used a variety of long-span bridge types, and demonstrated a willingness to apply some very unusual designs, to improve major ravine and river crossings. The bridge is historically and technologically significant.

Discussion of Surrounding Area

The bridge carries a 2 lane street with sidewalks over a ravine and two city streets. The area is a mix of late-19th to late-20th-century residential, commercial, and light industrial development. The setting does not have the cohesiveness or integrity of a potential historic district.

Bridge Considered Historic By Survey: Yes

Divider

Photo Galleries and Videos: Robert McAfee Bridge

 
View Photo Gallery
Bridge Photo-Documentation
A collection of overview and detail photos. This photo gallery contains a combination of Original Size photos and Mobile Optimized photos in a touch-friendly popup viewer. Alternatively, Browse Without Using Viewer

Divider

Maps and Links: Robert McAfee 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

OpenStreetMap

Apple Maps (Via DuckDuckGo Search)

Apple Maps (Apple devices only)

MapQuest

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)


Divider
 
Home Top

Divider

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

Divider