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picture of bridge

View south (downstream right)

Elevation drawing looking downstream

Elevation drawing looking downstream

OFFICIAL NAME:
Glenwood Bridge

OTHER DESIGNATION:
pghe590-12

LOCATION:
Pittsburgh

USGS 7.5" Topo Quad - UTM Coordinates:
Pittsburgh East - Zone 17; 0590 4472
CARRIES:
motor vehicles, 4 lanes divided
PA885

BETWEEN:
-- Second Av (Glenwood) on right descending bank of Monongahela River
-- Interchange with East Carson St [PA837 - Blue Belt], Eighth Av [PA837 - Blue Belt], Mifflin Rd [PA885], Streets Run Rd, Glass Run Rd (Hays) on left descending bank of Monongahela River

CROSSES:
-- (RBD to LDB) CSX RR Pittsburgh-Cumberland, CSX RR Glenwood Yard, Monongahela River at mile 5.9, Union RR, PLE RR, East Carson St [PA837 - Blue Belt], NS RR [Conrail]
TYPE OF CONSTRUCTION / DESIGN:
steel, cantilever, through warren truss

LENGTH OF MAIN SPAN:
557 ft

TOTAL LENGTH (including longest elevated ramp):
2280 ft

HEIGHT OF DECK:
50 ft, vertical clearance, channel span
Emsworth Dam normal pool level 710 ft

YEAR ERECTED / ENGINEER:
1966, County of Allegheny
ADDITIONAL INFO:
Major rehabilitation, including deck replacement, Spring 2000.

Its form is unusual hybrid: primarily a deck-type truss, but the panels are enlarged as they meet the piers. The top chord curves above the deck, but the side trusses are connected only at the vertical support above the piers. This upper cross-brace appears to be mostly cosmetic as the bracing below the deck is much more substantial.

Squared stones, possibly from the substructure of the previous bridge, are found in large piles along the north bank upstream from the present bridge. The 1894 bridge was a Pittsburgh Railways street car bridge which had a wooden floor to allow motor vehicles to cross also. It was a pin-connected Pennsylvania through truss.

FIELD CHECKED:
25-May-2000

INFO SOURCES:
USACE Monongahela River Nav. Charts


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Introduction -- Nearby Structures


Page created:
Last modified: 05-Dec-2000

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