Allegheny County, PA

356 public highway bridges

Allegheny County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Allegheny County, Pennsylvania contains 356 public highway bridges. Roughly 48.9% are rated “Good,” 21.3% “Fair,” and 4.5% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.

Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

356
Total Bridges
48.9%
Good
21.3%
Fair
4.5%
Poor Condition

Condition Distribution

Good
48.9% (174)
Fair
21.3% (76)
Poor
4.5% (16)

All Bridges (356)

REIS RUN ROAD

Fair

Over: LOWRIES RUN

237' W OF SR 4011, Allegheny, PA

Built 1961 Load: 28.1 t ADT: 5,365

SR 0028 SB

Fair

Over: DEER CREEK

NEAR HARMARVILLE INTERCH, Allegheny, PA

Built 1970 Load: 29.0 t ADT: 24,013

Morrow St

Fair

Over: Trib of Chartiers Cr

1 mile north of Glendale, Allegheny, PA

Built 1973 Load: 29.0 t ADT: 150

Barrington Dr.

Fair

Over: Fish Run

226' from Wexford Road, Allegheny, PA

Built 1992 Load: 30.8 t ADT: 100

Old Abers Creek Rd

Fair

Over: Pierson Run

200' S Old Frankstown Rd., Allegheny, PA

Built 1995 Load: 30.8 t ADT: 250

CLAIRTON-GLASSPORT

Fair

Over: MON,NSRC,CSX,URR

CLAIRTON-GLASSPORT BRIDGE, Allegheny, PA

Built 1987 Load: 31.8 t ADT: 6,432

BERAM AVENUE

Fair

Over: WHEELING & LAKE ERIE RR

102001 300' E OF WASH RD, Allegheny, PA

Built 1999 Load: 31.8 t ADT: 1,200

UNION AV

Fair

Over: BR.ROBINSON RUN

@ INTERS.W\SR 3048, Allegheny, PA

Built 1925 Load: 32.7 t ADT: 8,632

BULL CREEK RD

Fair

Over: HOWES RUN

150' S.E. OF SR 1033, Allegheny, PA

Built 1930 Load: 32.7 t ADT: 2,964

ALLEGHENY RIVER BL

Fair

Over: SANDY CREEK

300' NORTHEAST OF SR 0130, Allegheny, PA

Built 1931 Load: 32.7 t ADT: 12,459

MCLAUGHLIN RUN RD

Fair

Over: MCLAUGHLIN RUN

@ INTER.WITH SR 0019, Allegheny, PA

Built 1940 Load: 32.7 t ADT: 15,764

ROCHESTER RD.

Fair

Over: LOWRIES RUN

3000' NORTH OF SR 4022, Allegheny, PA

Built 1941 Load: 32.7 t ADT: 5,431

BABCOCK BL

Fair

Over: NORTH PARK LAKE SPILLWAY

@ N.PARK LAKE SPILLWAY, Allegheny, PA

Built 1936 Load: 32.7 t ADT: 2,562

ALLEGHENY RIVER BL

Fair

Over: ABANDONED RR

1 1/2 MILES E. OF PA 8, Allegheny, PA

Built 1931 Load: 32.7 t ADT: 22,731

ALLEGHENY RIVER BL

Fair

Over: ABANDONED RR

1 1/2 MILES E. OF PA 8, Allegheny, PA

Built 1931 Load: 32.7 t ADT: 22,731

SR0028@MILLVALE

Fair

Over: RAMPB/AND/02400900201211

RT28&4009MILLVALE, Allegheny, PA

Built 1960 Load: 32.7 t ADT: 41,555

South McCully Road

Fair

Over: Thompson Run

300' W OF THOMPSON RUN RD, Allegheny, PA

Built 1950 Load: 32.7 t ADT: 75

Pine Valley Dr.

Fair

Over: Humms Run

300' N SR 286, Allegheny, PA

Built 1995 Load: 32.7 t ADT: 250

T325, WALLACE ROAD

Fair

Over: Catfish Run

BTW T976 & SR3013, Allegheny, PA

Built 2007 Load: 32.7 t ADT: 5,000

BABCOCK BL

Fair

Over: GIRTY'S RUN

520' N.E. OF SR 4009, Allegheny, PA

Built 1926 Load: 33.6 t ADT: 14,237

Blvd Al.Ramp

Fair

Over: 1st Ave, 2nd Ave, Local

Blvd.of Alies to Lib. Br, Allegheny, PA

Built 1928 Load: 33.6 t ADT: 1,259

LAUREL HILL ROAD

Fair

Over: ROBINSON RUN

80' SE OF SR 2246, Allegheny, PA

Built 1956 Load: 34.5 t ADT: 1,628

CO WASTESTA ACC RD

Fair

Over: PINE CREEK

PI35 PINE CREEK NO. 35, Allegheny, PA

Built 1974 Load: 35.4 t ADT: 300

Liberty Br. ramp

Fair

Over: 1st Ave, 2nd Ave, Local

Liberty Br.to Blvd. Alies, Allegheny, PA

Built 1928 Load: 35.4 t ADT: 6,489

DUNCAN AVENUE

Fair

Over: GOURDHEAD RUN

200 FT W OF SR 8, Allegheny, PA

Built 2014 Load: 35.6 t ADT: 4,000

Station St.

Fair

Over: Moon Run

1200 ft North of SR 51, Allegheny, PA

Built 1990 Load: 35.6 t ADT: 100

Veterans Bridge

Fair

Over: ALLEGHENY RIVER

Veterans Bridge, Allegheny, PA

Built 1986 Load: 36.3 t ADT: 59,292

STATE STREET

Fair

Over: LOBBS RUN

440001 AT FLOREFFE VFD, Allegheny, PA

Built 1999 Load: 36.3 t ADT: 500

Becks Run Road

Fair

Over: Flaugherty Run

70' fr Flaugherty Run Rd, Allegheny, PA

Built 1998 Load: 36.3 t ADT: 50

Hickory Grade Rd

Fair

Over: SR 576(Southern Beltway)

MP 17.97 on Rt. 576, Allegheny, PA

Built 2019 Load: 36.6 t ADT: 250

BABCOCK BLVD

Fair

Over: PA TURNPIKE

0.5 MI N SR 910, Allegheny, PA

Built 2007 Load: 37.9 t ADT: 6,640

PANTHER HOLLOW TR

Fair

Over: SCHENLEY PARK STREAM

90 Schenley Prk Hlw Trl 4, Allegheny, PA

Built 1908 Load: 38.1 t ADT: 50

CHARTIERS STREET

Fair

Over: PGH AND OHIO RAILWAY

500 FT SOUTHEAST OF SR 50, Allegheny, PA

Built 1998 Load: 39.0 t ADT: 9,547

PANTHER HOLLOW TR

Fair

Over: SCHENLEY PARK STREAM

087 Schenley Prk Hlw Trl1, Allegheny, PA

Built 1908 Load: 39.9 t ADT: 50

SOUTH HIGHLAND AVE

Fair

Over: ELLSWORTH, E BUSWAY, NSR

100 S Highland Ave Bridge, Allegheny, PA

Built 1925 Load: 39.9 t ADT: 8,242

PA TPK (I-76)

Fair

Over: Trib of Bush Creek

WEST OF WARRENDALE, Allegheny, PA

Built 2021 Load: 40.5 t ADT: 27,341

NORTH AV

Fair

Over: GIRTYS RUN

445001 AT BABCOCK BLVD, Allegheny, PA

Built 1931 Load: 40.8 t ADT: 2,500

Greensburg Pike

Fair

Over: Turtle Creek, NSR

TL06 Turtle Creek #6, Allegheny, PA

Built 2014 Load: 40.8 t ADT: 6,908

Park Manor Blvd

Fair

Over: Montour Run

100' SE of Montour Run Rd, Allegheny, PA

Built 1988 Load: 40.8 t ADT: 2,000

GREENTREE ROAD

Fair

Over: CHARTIERS CREEK

AT INTERSECTION W/PA 50, Allegheny, PA

Built 1960 Load: 41.7 t ADT: 19,293

FORT PITT BL

Fair

Over: MON WHARF PARKING LOT

035 Fort Pitt Blvd, Allegheny, PA

Built 2002 Load: 41.7 t ADT: 15,955

Bell Ave

Fair

Over: Unnamed Tributary

Duncan Way & Bell Ave, Allegheny, PA

Built 1995 Load: 42.6 t ADT: 200

Lindsay Rd

Fair

Over: Unnamed Tributary

Lindsay & Hope Hollow Rd, Allegheny, PA

Built 1995 Load: 42.6 t ADT: 200

CASTLE SHANNON BLV

Fair

Over: SAW MILL RUN

300' NW OF SR 88, Allegheny, PA

Built 1900 Load: 43.5 t ADT: 12,901

Zaenger Drive

Fair

Over: Squaw Run

Off Old Freeport Rd, Allegheny, PA

Built 2004 Load: 43.5 t ADT: 300

Gregg Station Rd

Fair

Over: Robinson Run

Collier Twp, Allegheny, PA

Built 2008 Load: 44.5 t ADT: 500

Grove Rd

Fair

Over: Saw Mill Run

Grove Rd & Rt 88, Allegheny, PA

Built 2010 Load: 44.5 t ADT: 9,131

BOYCE RD

Fair

Over: CHARTIERS CREEK

1/4 MI. EAST OF SR 3005, Allegheny, PA

Built 1996 Load: 47.2 t ADT: 10,193

ROYAL VIEW DR

Fair

Over: CROUSE RUN

207002 ROYAL VIEW DR BRDG, Allegheny, PA

Built 1920 Load: 48.1 t ADT: 300

MONRV-TURTL CRK RD

Fair

Over: TURTLE CREEK BRANCH

TL11 TURTLE CREEK NO 11, Allegheny, PA

Built 1990 Load: 48.1 t ADT: 7,700

Read our methodology - how this data is sourced, computed, and verified.

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Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.