Irwin Viaduct

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Note: The following information comes from the National Bridge Inventory and has not been verified.

Overview

Steel stringer bridge over Tinkers Run & Main Street on US 30 (Lincoln Highway)

Location

Westmoreland County, Pennsylvania

Status

Open to traffic

History

Built 1939; rehabilitated 1984

Design

Steel stringer

Dimensions

Length of largest span: 75.1 ft.
Total length: 524.0 ft.
Deck width: 49.9 ft.

Approximate latitude, longitude

+40.32662, -79.71292   (decimal degrees)
40°19'36" N, 79°42'47" W   (degrees°minutes'seconds")

Approximate UTM coordinates

17/609341/4464805 (zone/easting/northing)

Quadrangle map:

Irwin

Average daily traffic (as of 2016)

27,619

Inventory numbers

PANBI 35920 (Pennsylvania BRKEY bridge number on the 2011 NBI)
BH 79273 (Bridgehunter.com ID)

Inspection report (as of April 2017)

Overall condition: Fair
Superstructure condition rating: Satisfactory (6 out of 9)
Substructure condition rating: Fair (5 out of 9)
Deck condition rating: Satisfactory (6 out of 9)
Sufficiency rating: 57.7 (out of 100)
View more at BridgeReports.com

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