HistoricBridges.org Menu: HistoricBridges.org Menu:


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

HistoricBridges.org: Bridge Browser

Greentree Road Bridge

Greentree Road Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: July 3, 2014

View Photos
and Videos
View Maps
and Links

Location
Green Tree: Allegheny County, Pennsylvania: United States
Construction Date and Builder / Engineer
1950 By Builder/Contractor: Unknown
Rehabilitation Date
1977
Main Span Length
85.0 Feet (25.9 Meters)
Structure Length
142.0 Feet (43.3 Meters)
Roadway Width
54 Feet (16.46 Meters)
Spans
3 Main Span(s)
Inventory Number
933

Historic Significance Rating (HSR)
View Information About HSR Ratings

Bridge Documentation

This overpass is noted for its riveted, arched, built-up beam design.

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

Information and Findings From Pennsylvania's Historic Bridge Inventory

Discussion of Bridge

The 3 span, 142'-long, steel stringer bridge built in 1950 is supported on concrete abutments and concrete bents. The center span has haunched built up stringers, and the approach spans have rolled section stringers. The bridge has a longitudinal joint due to its width. The deck and safety shape parapets were placed in 1977. The bridge is an example of a common bridge type with no individually distinctive or noteworthy details. Its significance is in historic association and physical connection with the Penn Lincoln Parkway, a nationally outstanding post-WW II urban expressway project. The parkway and its associated structures are historically and technologically significant.

Discussion of Surrounding Area

The bridge carries 4 lanes of traffic and 2 sidewalks over 4 lanes of traffic in an area of post-WW II commercial strip development. The Penn Lincoln Parkway (1946-1960) is an important engineering achievement that is an outstanding example of post-WW II urban expressway planning and design. It required innovative engineering solutions, including the construction of more than 60 bridges, 2 major tunnels, complex interchanges, and the relocation of existing streets and rail lines. It was the largest single project directed by the state highway department up to that time stretching over 19.5 miles in a general east-west direction from US 22 in Churchill to downtown and then west to SR 60 in Robinson Twp. The parkway was built in stages over a period of 14 years, mainly to spread out the huge expense.

Bridge Considered Historic By Survey: Yes


This bridge is tagged with the following special condition(s): Unorganized Photos

Divider

Photo Galleries and Videos: Greentree Road Bridge

 

View Photo Gallery

Unorganized Photos

Original / Full Size Photos
A collection of overview and detail photos, presented as an unorganized and unlabeled collage and gallery. This gallery offers photos in the highest available resolution and file size in a touch-friendly popup viewer.
Alternatively, Browse Without Using Viewer

Divider

View Photo Gallery

Unorganized Photos

Mobile Optimized Photos
A collection of overview and detail photos, presented as an unorganized and unlabeled collage and gallery. This gallery features data-friendly, fast-loading photos in a touch-friendly popup viewer.
Alternatively, Browse Without Using Viewer

Divider

Maps and Links: Greentree Road Bridge

Coordinates (Latitude, Longitude):

Search For Additional Bridge Listings:

Bridgehunter.com: View listed bridges within 0.5 miles (0.8 kilometers) of this bridge.

Bridgehunter.com: View listed bridges within 10 miles (16 kilometers) of this bridge.

HistoricBridges.org Bridge Browser: View listed bridges within 0.5 miles (0.8 kilometers) of this bridge.

HistoricBridges.org Bridge Browser: View listed bridges within 10 miles (16 kilometers) of this bridge.

2021 National Bridge Inventory: View listed bridges within 0.5 miles (0.8 kilometers) of this bridge.

Additional Maps:

Google Maps

Google Streetview (If Available)

Bing Maps

OpenStreetMap

GeoHack (Additional Links and Coordinates)

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)

Historic Aerials (United States Only)

CalTopo Maps (United States Only)


Divider
 
Home Top

Divider

About - Contact

© Copyright 2003-2022, 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