State profile · Above median Poor share

Pennsylvania bridge safety

According to the Federal Highway Administration's 2024 National Bridge Inventory, condition ratings, load ratings, and Poor-condition shares for every public highway bridge in Pennsylvania.

23,299
Public bridges
34.0%
Good condition
12.6%
Poor condition

Pennsylvania holds 23,299 public highway bridges (#8 of 52 by inventory) with a 12.58% Poor share (#7 of 52 by Poor share).

That is 12.6% of the state's inventory, against an average of 7.5% across the 54 states and territories with Poor-rated bridges on file, which places it 46 of 54 ordered from the lowest Poor share upward. A bridge is rated Poor when its weakest applicable component scores 4 or below on the inspecting agency's 0-9 scale, so the category is a maintenance and funding signal rather than a closure order or a live crossing-safety verdict.

Inventory: FHWA NBI 2024 · last ETL August 2026

Total Bridges

23,299

Public highway bridges in Pennsylvania

Good Condition

34.0%

7,915 bridges rated 7-9

-16.0pp vs 50% benchmark

Poor Condition

12.6%

2,932 bridges whose lowest applicable component is rated 0-4

5.1pp vs national avg 7.5%

Pennsylvania vs national bridge condition

Pennsylvania - Good condition share 34.0%
National avg

Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).

Pennsylvania - Poor-condition share 41.9%
National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.5%.

Pennsylvania in the national condition pattern

Each point is a state or territory in the FHWA NBI; the highlighted point is this profile.

Inventory size and Poor-condition share are different measures: Pennsylvania has 23,299 bridges and a 12.6% Poor-condition share in the 2024 NBI, rank #46 of 54 jurisdictions ordered from the lowest share upward. The dashed comparisons mark the national average state rate and the midpoint of the plotted inventory range; neither is a live safety or closure threshold. Scatter plot of 54 data points. 0%10%20%30%40% 0k20k40k60k Public bridges in inventory (thousands) Poor-condition share (%) PA, Public bridges in inventory (thousands): 23.3k · Poor-condition share (%): 12.58%AL, Public bridges in inventory (thousands): 16.2k · Poor-condition share (%): 3.35%AK, Public bridges in inventory (thousands): 1.7k · Poor-condition share (%): 7.89%AZ, Public bridges in inventory (thousands): 8.6k · Poor-condition share (%): 1.15%AR, Public bridges in inventory (thousands): 13k · Poor-condition share (%): 5.43%CA, Public bridges in inventory (thousands): 25.8k · Poor-condition share (%): 5.91%CO, Public bridges in inventory (thousands): 9k · Poor-condition share (%): 4.82%CT, Public bridges in inventory (thousands): 4.4k · Poor-condition share (%): 4.72%DE, Public bridges in inventory (thousands): 0.9k · Poor-condition share (%): 1.26%DC, Public bridges in inventory (thousands): 0.3k · Poor-condition share (%): 1.95%FL, Public bridges in inventory (thousands): 13k · Poor-condition share (%): 2.79%GA, Public bridges in inventory (thousands): 15.1k · Poor-condition share (%): 1.59%GU, Public bridges in inventory (thousands): 0k · Poor-condition share (%): 12.77%HI, Public bridges in inventory (thousands): 1.2k · Poor-condition share (%): 6.53%ID, Public bridges in inventory (thousands): 4.6k · Poor-condition share (%): 4.9%IL, Public bridges in inventory (thousands): 26.9k · Poor-condition share (%): 9.35%IN, Public bridges in inventory (thousands): 19.5k · Poor-condition share (%): 5.22%IA, Public bridges in inventory (thousands): 23.7k · Poor-condition share (%): 19.16%KS, Public bridges in inventory (thousands): 24.9k · Poor-condition share (%): 5.26%KY, Public bridges in inventory (thousands): 14.5k · Poor-condition share (%): 7.37%LA, Public bridges in inventory (thousands): 12.7k · Poor-condition share (%): 11.48%ME, Public bridges in inventory (thousands): 2.5k · Poor-condition share (%): 15.41%MD, Public bridges in inventory (thousands): 5.5k · Poor-condition share (%): 4.56%MA, Public bridges in inventory (thousands): 5.3k · Poor-condition share (%): 8.88%MI, Public bridges in inventory (thousands): 11.4k · Poor-condition share (%): 11.27%MN, Public bridges in inventory (thousands): 13.5k · Poor-condition share (%): 4.44%MS, Public bridges in inventory (thousands): 16.7k · Poor-condition share (%): 6.03%MO, Public bridges in inventory (thousands): 24.6k · Poor-condition share (%): 8.95%MT, Public bridges in inventory (thousands): 5.2k · Poor-condition share (%): 6.81%NE, Public bridges in inventory (thousands): 15.4k · Poor-condition share (%): 7.9%NV, Public bridges in inventory (thousands): 2.1k · Poor-condition share (%): 1.14%NH, Public bridges in inventory (thousands): 2.5k · Poor-condition share (%): 7.51%NJ, Public bridges in inventory (thousands): 6.8k · Poor-condition share (%): 6.01%NM, Public bridges in inventory (thousands): 4k · Poor-condition share (%): 4.51%NY, Public bridges in inventory (thousands): 17.6k · Poor-condition share (%): 9.43%NC, Public bridges in inventory (thousands): 19.2k · Poor-condition share (%): 6.76%ND, Public bridges in inventory (thousands): 4.3k · Poor-condition share (%): 10.98%OH, Public bridges in inventory (thousands): 26.7k · Poor-condition share (%): 4.74%OK, Public bridges in inventory (thousands): 22.9k · Poor-condition share (%): 7.7%OR, Public bridges in inventory (thousands): 8.3k · Poor-condition share (%): 4.61%PR, Public bridges in inventory (thousands): 2.4k · Poor-condition share (%): 13.92%RI, Public bridges in inventory (thousands): 0.8k · Poor-condition share (%): 15.2%SC, Public bridges in inventory (thousands): 9.5k · Poor-condition share (%): 6.17%SD, Public bridges in inventory (thousands): 5.9k · Poor-condition share (%): 16.36%TN, Public bridges in inventory (thousands): 20.4k · Poor-condition share (%): 4.41%TX, Public bridges in inventory (thousands): 56.7k · Poor-condition share (%): 1.23%UT, Public bridges in inventory (thousands): 3.1k · Poor-condition share (%): 2.91%VT, Public bridges in inventory (thousands): 2.9k · Poor-condition share (%): 2.9%VI, Public bridges in inventory (thousands): 0k · Poor-condition share (%): 29.17%VA, Public bridges in inventory (thousands): 14.1k · Poor-condition share (%): 3.39%WA, Public bridges in inventory (thousands): 8.5k · Poor-condition share (%): 5.45%WV, Public bridges in inventory (thousands): 7.3k · Poor-condition share (%): 18.64%WI, Public bridges in inventory (thousands): 14.4k · Poor-condition share (%): 6.52%WY, Public bridges in inventory (thousands): 3.1k · Poor-condition share (%): 6.51%
Inventory size and Poor-condition share are different measures: Pennsylvania has 23,299 bridges and a 12.6% Poor-condition share in the 2024 NBI, rank #46 of 54 jurisdictions ordered from the lowest share upward. The dashed comparisons mark the national average state rate and the midpoint of the plotted inventory range; neither is a live safety or closure threshold.

Pennsylvania vs all states by public bridge inventory

Where this state's FHWA NBI public-highway bridge count sits among every state and territory on PlainBridges

23,299 8th of 54 higher than 46 of 54 states

States and territories, banded by public bridge inventory size

Each bar is a band; taller bars hold more states. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source FHWA National Bridge Inventory · 2024

Read the rank neighborhood for Pennsylvania

The highlighted point is Pennsylvania: 23,299 bridges and 12.58% in Poor condition, rank #46 of 54 jurisdictions ordered from the lowest share upward. The five jurisdictions immediately above and below Pennsylvania on that same Poor-share ordering:

  • Michigan: 11,371 bridges · 11.27% Poor
  • Louisiana: 12,698 bridges · 11.48% Poor
  • Pennsylvania: 23,299 bridges · 12.58% Poor
  • Guam: 47 bridges · 12.77% Poor
  • Puerto Rico: 2,385 bridges · 13.92% Poor

The full national sortable table lives on the rankings page.

Material families in Pennsylvania

Exclusive FHWA material families across all 23,299 bridges in this state; continuous variants fold into the parent family. Orthogonal to the Poor-share scatter above.

Who maintains Pennsylvania’s inventory

State agency holds 70.3% of the 23,299 public highway bridges filed under Pennsylvania in the 2024 NBI, the agency-of-record split for this state, not a condition verdict.

When Pennsylvania’s bridges were built

Pre-1950 construction accounts for 24.8% of the 23,299 bridges with a recorded original year in Pennsylvania. Era bands are orthogonal to the Poor-share ranking above.

Condition Distribution

Pennsylvania34%53.4%12.6%GoodFairPoor
Bridge inventory deck-condition mix - Pennsylvania (FHWA NBI)

Counties (67)

Adams 254 Allegheny 1294 Armstrong 263 Beaver 299 Bedford 417 Berks 667 Blair 338 Bradford 399 Bucks 699 Butler 378 Cambria 284 Cameron 62 Carbon 134 Centre 367 Chester 680 Clarion 172 Clearfield 292 Clinton 212 Columbia 271 Crawford 399 Cumberland 348 Dauphin 449 Delaware 387 Elk 127 Erie 442 Fayette 422 Forest 71 Franklin 294 Fulton 159 Greene 306 Huntingdon 238 Indiana 301 Jefferson 202 Juniata 169 Lackawanna 363 Lancaster 801 Lawrence 265 Lebanon 228 Lehigh 381 Luzerne 457 Lycoming 482 McKean 226 Mercer 438 Mifflin 196 Monroe 315 Montgomery 828 Montour 108 Northampton 356 Northumberland 299 Perry 183 Philadelphia 585 Pike 158 Potter 207 Schuylkill 368 Snyder 161 Somerset 454 Sullivan 119 Susquehanna 284 Tioga 429 Union 163 Venango 189 Warren 217 Washington 655 Wayne 259 Westmoreland 620 Wyoming 140 York 569

Pennsylvania vs nearby ranks

Adjacent states by Poor-condition share (lower share = better)

States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below Pennsylvania on the same metric.

MI

Michigan

11.27% top marginal rate
Structure
Progressive
Burden @ $100K
$11,371

LA

Louisiana

11.48% top marginal rate
Structure
Progressive
Burden @ $100K
$12,698
Selected

PA

Pennsylvania

12.58% top marginal rate
Structure
Progressive
Burden @ $100K
$23,299

GU

Guam

12.77% top marginal rate
Structure
Progressive
Burden @ $100K
$47

PR

Puerto Rico

13.92% top marginal rate
Structure
Progressive
Burden @ $100K
$2,385

Bridges Needing Most Attention in Pennsylvania

Six lowest-condition bridges in Pennsylvania, ranked by the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.

BLVD OF THE ALLIES

Poor

Over: CSX RR & BIKE TRAIL

005 Charles Anderson Brid, Allegheny, PA

Built 1938 Load: 0.0 t ADT: 21,211

TIMBERLAND AV

Poor

Over: SAW MILL RUN CREEK

113 Timberland Ave, Allegheny, PA

Built 1909 Load: 0.0 t ADT: 30

FREMONT ST

Poor

Over: GIRTYS RUN

FREMONT 25 FROM NORTH AV, Allegheny, PA

Built 1911 Load: 0.0 t ADT: 50

OLD WILLIAMPENN HW

Poor

Over: THOMPSON RUN CREEK

446002 OLD WM PENN HGWY, Allegheny, PA

Built 1900 Load: 0.0 t ADT: 300

FALLSTON BR

Poor

Over: BEAVER RIVER

004026 FALLSTON BRIDGE, Beaver, PA

Built 1884 Load: 0.0 t ADT: 6,523

ELEVENTH AVENUE ET

Poor

Over: BLOCKHOUSE RUN

423005 100 YD /13 ST INT, Beaver, PA

Built 1925 Load: 0.0 t

All Bridges in Pennsylvania

PA 31

Fair

Over: W.BR.COXES CREEK

170 FEET WEST OF SR 4005, Somerset, PA

Built 1963 Load: 25.4 t ADT: 5,636

US 219

Fair

Over: CSX RR & STONYCREEK RIV

SOMERSET/CAMBRIA CO LINE, Somerset, PA

Built 1970 Load: 25.4 t ADT: 15,003

SR 4022

Fair

Over: US 219

2 MI.SE.OF TIRE HILL, Somerset, PA

Built 1969 Load: 25.4 t ADT: 312

T312 COVERED BR RD

Fair

Over: LAUREL HILL CREEK

1.3 MI.NE.OF URSINA, Somerset, PA

Built 1891 Load: 25.4 t ADT: 50

SR 154

Fair

Over: OVER ELK CR.

0.25 MI W OF LINCOLN FALL, Sullivan, PA

Built 1932 Load: 25.4 t ADT: 362

S.R. 2003

Fair

Over: MUNCY CREEK

VILLAGE OF NORDMONT, Sullivan, PA

Built 1956 Load: 25.4 t ADT: 180

SR 1009

Fair

Over: STARRUCCA CREEK

HARMONY TWP .5 M W SR1011, Susquehanna, PA

Built 1936 Load: 25.4 t ADT: 471

SR 2024

Fair

Over: MESHOPPEN CREEK

DIMOCK TWP .1 M E SR 2053, Susquehanna, PA

Built 1942 Load: 25.4 t ADT: 1,197

SR 2024

Fair

Over: HOP BOTTOM CREEK

BROOKLYN TWP 800W TR 167, Susquehanna, PA

Built 1947 Load: 25.4 t ADT: 1,197

PA 249

Fair

Over: CROOKED CREEK

.5 MI W OF LITTLE MARSH, Tioga, PA

Built 1932 Load: 25.4 t ADT: 1,186

SR 287

Fair

Over: TRIB TO CROOKED CREEK

VILLAGE OF MIDDLEBURY CTR, Tioga, PA

Built 1923 Load: 25.4 t ADT: 4,387

S.R. 414

Fair

Over: BABBS CREEK

VILLAGE OF BLACKWELL, Tioga, PA

Built 1974 Load: 25.4 t ADT: 277

SR 2014

Fair

Over: OVER TIOGA RIVER

1 MI SE OF BLOSSBURG BORO, Tioga, PA

Built 1939 Load: 25.4 t ADT: 843

SR 2020

Fair

Over: NORTH ELK RUN

1.25 MI W RICHARDS BRIDGE, Tioga, PA

Built 1947 Load: 25.4 t ADT: 264

SR 1002

Fair

Over: BLACK RUN

VILLAGE OF MAZEPPA, Union, PA

Built 1948 Load: 25.4 t ADT: 2,284

SR 322 13TH STREET

Fair

Over: OVER FRENCH CREEK

CITY OF FRANKLIN, Venango, PA

Built 1969 Load: 25.4 t ADT: 9,830

SR 6 GRAND ARMY HY

Fair

Over: OVER DUTCHMAN RUN

MEAD TOWNSHIP, Warren, PA

Built 1947 Load: 25.4 t ADT: 6,433

TWP RD 346/SR 4069

Fair

Over: SR 0022

HANOVER TOWNSHIP, Washington, PA

Built 1971 Load: 25.4 t ADT: 479

SR 0070

Fair

Over: 0088 0906 2 R/R MON

BELLE VERNON BRIDGE, Washington, PA

Built 1951 Load: 25.4 t ADT: 52,144

SR 2020

Fair

Over: NORTH FORK TENMILE CREEK

AMWELL TOWNSHIP, Washington, PA

Built 1938 Load: 25.4 t ADT: 559

SR 0136

Fair

Over: SR 0030 & ZELLERS RUN

CITY OF GREENSBURG, Westmoreland, PA

Built 1959 Load: 25.4 t ADT: 9,644

SR 3010

Fair

Over: LICK RUN

SOUTH HUNTINGDON TOWNSHIP, Westmoreland, PA

Built 1965 Load: 25.4 t ADT: 1,107

SR 3016

Fair

Over: LITTLE SEWICKLEY CREEK

SEWICKLEY TOWNSHIP, Westmoreland, PA

Built 1972 Load: 25.4 t ADT: 2,251

SR 0267 TR 267

Fair

Over: LITTLE MESHOPPEN CREEK

MESHOPPEN TWP 1.2M N TR 6, Wyoming, PA

Built 1930 Load: 25.4 t ADT: 1,610

PA 238; Church rd.

Fair

Over: I-83; SR 0083

EXIT-11 EMIGSVILLE I-83, York, PA

Built 1957 Load: 25.4 t ADT: 20,589

PA 851; SR 0851

Fair

Over: W BR OF DEER CREEK

1 MI.W. OF STEWWARTSTOWN, York, PA

Built 1961 Load: 25.4 t ADT: 8,550

JUNCTION ROAD

Fair

Over: DOGWOOD RUN

1.5 N DILLSBRG/DOGWOOD RN, York, PA

Built 1940 Load: 25.4 t ADT: 250

W. JACKSON STREET

Fair

Over: TYLER RUN

.25 E GRTLY RD, York, PA

Built 1985 Load: 25.4 t ADT: 5,000

OLD YORK ROAD

Fair

Over: CHELTENHAM AVENUE

CHELTENHAM AVENUE 3480J01, Philadelphia, PA

Built 1963 Load: 25.4 t ADT: 15,390

TORRESDALE AVENUE

Fair

Over: ACADEMY ROAD

ACADEMY RD.EXT. 3482K03, Philadelphia, PA

Built 1964 Load: 25.4 t ADT: 10,645

SPRING GARDEN STR.

Fair

Over: SCHUYLKILL RIVER MLK DR

NEAR ART MUSEUM 3590A06, Philadelphia, PA

Built 1966 Load: 25.4 t ADT: 18,143

58TH STREET

Fair

Over: SEPTA

S.BALTIMORE AVE. 3589 B09, Philadelphia, PA

Built 1908 Load: 25.4 t ADT: 10,110

Poplar Street

Fair

Over: CSX

West of 30th St. 28C08, Philadelphia, PA

Built 1922 Load: 25.4 t ADT: 5,700

Greenland Drive

Fair

Over: Abandoned Park Trolley

W.WEST RIVER DRIVE 28A04, Philadelphia, PA

Built 1876 Load: 25.4 t ADT: 12,500

Wynnefield Avenue

Fair

Over: Parkside Avenue Ext.

W.BELMONT AVE. 27H05, Philadelphia, PA

Built 1876 Load: 25.4 t ADT: 16,000

52nd Street

Fair

Over: Abandoned Park Trolley

52ND STREET 27G07, Philadelphia, PA

Built 1876 Load: 25.4 t ADT: 900

Oak Lane Avenue

Fair

Over: SEPTA (BETH BR)

W of 8th Street 18A06, Philadelphia, PA

Built 1902 Load: 25.4 t ADT: 1,200

SR 99-I 99

Fair

Over: SEDA-COG/NIT&BALD EGL RR

1 MILE WEST PORT MATILDA, Centre, PA

Built 2006 Load: 25.4 t ADT: 6,883

SR 8082 SB

Fair

Over: N/A

Highland Park Bridge, Allegheny, PA

Built 1940 Load: 25.4 t ADT: 3,973

SR 8082

Fair

Over: N/A

Highland Park Bridge, Allegheny, PA

Built 1940 Load: 25.4 t ADT: 23,641

US 15 SB; SR 0015

Fair

Over: ROCK CREEK

S OF GETTYSBURG, Adams, PA

Built 1963 Load: 26.3 t ADT: 9,517

CLAIRTON BLVD

Fair

Over: PETERS CREEK

@ DICK CORPORATION DRIVE, Allegheny, PA

Built 1960 Load: 26.3 t ADT: 21,778

RAYMOND SHAFER HW

Fair

Over: SR 4051 MINGO RD

JUST N OF WEXFORD INTERCH, Allegheny, PA

Built 1972 Load: 26.3 t ADT: 39,249

PARKWAY EAST

Fair

Over: SALINE STREET

SALINE STREET BRIDGE, Allegheny, PA

Built 1951 Load: 26.3 t ADT: 74,684

I-376

Fair

Over: COMMERCIAL ST. & NINE MI

COMMERCIAL STREET BRIDGE, Allegheny, PA

Built 1950 Load: 26.3 t ADT: 75,287

WIlliam Penn Hwy

Fair

Over: LR 744 UNION RR THOMPSON

HALL STATION BRIDGE, Allegheny, PA

Built 1942 Load: 26.3 t ADT: 37,645

WALTON ROAD

Fair

Over: LOBBS RUN

1050 N.W. OF SR 0837, Allegheny, PA

Built 1962 Load: 26.3 t ADT: 567

Sewickley Bridge

Fair

Over: SR 0051;N&SRR;CSX;OHIO R

Sewickley Bridge, Allegheny, PA

Built 1981 Load: 26.3 t ADT: 24,470

HOV

Fair

Over: FOUR CITY STREETS

Fort Duquesne Bridge, Allegheny, PA

Built 1986 Load: 26.3 t ADT: 449

WARENDALE-BAYNE RD

Fair

Over: BIG SEWICKLEY CREEK

SB10 BIG SEWICKLEYCR#10, Allegheny, PA

Built 1929 Load: 26.3 t ADT: 1,341

Showing 1,651-1,700 of 23,299 bridges

Related

All states → | National rankings → | Understanding conditions → | Retired SD term explained →
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges.

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the FHWA National Bridge Inventory (NBI). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.

Understanding Bridge Conditions

How FHWA rates bridge condition on a 0-9 scale.

Check Your Daily Bridges

How to look up bridge condition data for bridges on your route.

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

What to do with this

Use Pennsylvania's inventory picture to drill to a county or a specific span.

  • Browse counties in Pennsylvania and open the highest-Poor shares first. County list
  • See where this state sits among peers on Poor-condition share. State rankings
  • Compare this state with another jurisdiction on the same measures. State compare

NBI condition ratings are inventory snapshots, not live crossing-safety verdicts.

Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Pennsylvania Good/Fair/Poor shares and county rollups on this page are computed from the same NBI extract as the national boards; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.