OFFICIAL NAME:
OTHER DESIGNATION:
Old Leechburg Rd over Little Plum Creek
murr605-2
LOCATION:
Plum
USGS 7.5" Topo Quad - UTM Coordinates:
Murrysville - Zone 17; 0605 4483
CARRIES:
-- Old Leechburg Rd
BETWEEN:
-- west of intersection at New Texas Rd [Orange Belt]
CROSSES:
-- Little Plum Creek
TYPE OF CONSTRUCTION / DESIGN:
stone arch
locally-quarried sandstone
outer spandrel wall: rock-faced coursed ashlar
upper walls and parapets: dressed coursed ashlar
arch ring: dressed voussoirs in semicircular arch
South arch face and parapet rebuilt with concrete
LENGTH OF MAIN SPAN:
11 ft
TOTAL LENGTH (including longest elevated ramp):
33 ft
19.5 ft wide, between parapets
HEIGHT OF DECK:
YEAR ERECTED / ENGINEER:
1900, Allegheny County
Charles Davis, county engineer
ADDITIONAL INFO:
This bridge exhibits the more common design features of the County's stone bridges -- parapets with rounded top and horizontal curves at the portals.
This bridge shows unusual proportions compared to the many other of its type in the county. The relatively short 11-foot span is countered with tall outer walls -- approximately 30 feet from base to parapet. Typically these bridges are longer than they are tall.
The downstream wall has been rebuilt in concrete.
FIELD CHECKED:
01-Oct-2002
INFO SOURCES:
field check
