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

MIDDLE RD

Fair

Over: Over Middle Creek

1.7 MI WEST BEAVERSPRINGS, Snyder, PA

Built 1932 Load: 58.1 t ADT: 317

DECATUR RD T457

Fair

Over: OVER JACKS CREEK

0.5 MI.S OF BANNERVILLE, Snyder, PA

Built 1981 Load: 58.1 t ADT: 150

SR 0081 I-81 NB

Fair

Over: TOWNSHIP RD 436

LENOX TWP .6 M N TR 374, Susquehanna, PA

Built 1961 Load: 58.1 t ADT: 9,285

SR 0081 I-81 SB

Fair

Over: TOWNSHIP ROAD 436

LENOX TWP .6 M N TR 374, Susquehanna, PA

Built 1961 Load: 58.1 t ADT: 8,939

SR 0006

Fair

Over: OVER COREY CREEK

VILLAGE OF MAINESBURG, Tioga, PA

Built 1988 Load: 58.1 t ADT: 2,800

SR 287

Fair

Over: CROOKED CREEK

VILLAGE OF MIDDLEBURY CTR, Tioga, PA

Built 1986 Load: 58.1 t ADT: 2,620

SR 3007

Fair

Over: OVER STONY FORK CREEK

1 MI S OF DRAPER, Tioga, PA

Built 1953 Load: 58.1 t ADT: 395

SR 666 MAIN STREET

Fair

Over: OVER TWO MILE CREEK

SHEFFIELD TOWNSHIP, Warren, PA

Built 1961 Load: 58.1 t ADT: 2,873

SR 0088

Fair

Over: BRANCH OF PETERS CREEK

UNION TOWNSHIP, Washington, PA

Built 1907 Load: 58.1 t ADT: 10,597

SR 1011

Fair

Over: HENDRICKS CREEK

FAIRFIELD TOWNSHIP, Westmoreland, PA

Built 1984 Load: 58.1 t ADT: 240

T680 SPORTSMEN RD

Fair

Over: WILSON RUN

0.1 MI NORTH OF TR 479, Westmoreland, PA

Built 1940 Load: 58.1 t ADT: 570

T-973; PARK ROAD

Fair

Over: I-83; SR 0083

1 MI N OF EXIT-36 I-83, York, PA

Built 1959 Load: 58.1 t ADT: 600

T-970;PLSNTVIEW RD

Fair

Over: I-83; SR 0083

1 MI S OF EXIT-18 I-83, York, PA

Built 1959 Load: 58.1 t ADT: 2,180

SCHUYLKILL EXWY.EB

Fair

Over: NEILL DRIVE

NR.CITY LINE AVE. 3479J09, Philadelphia, PA

Built 1956 Load: 58.1 t ADT: 57,144

SPRUCE & DOCK STR.

Fair

Over: I-95; RAMP NX; RAMP XN

PENNS LANDING TUN.3590H9, Philadelphia, PA

Built 1976 Load: 58.1 t ADT: 7,376

Welsh Road

Fair

Over: Pennypack Creek

N.of Rowland Ave. 09C13, Philadelphia, PA

Built 1931 Load: 58.1 t ADT: 11,600

SR1034

Fair

Over: NORTH FORK PINE CREEK

MOSGROVE, Armstrong, PA

Built 1938 Load: 58.1 t ADT: 133

T-936 EXECUTIVE DR

Fair

Over: COAL RUN

0.6mi NW of SR3020, Butler, PA

Built 1998 Load: 58.1 t ADT: 2,200

T-375 HEIDELBERG

Fair

Over: SPRING CREEK

NEAR WOOLTOWN ROAD, Berks, PA

Built 2001 Load: 58.1 t ADT: 25

SR1019

Fair

Over: BUFFALO CREEK

CHICORA NO.1, Butler, PA

Built 1908 Load: 58.1 t ADT: 721

T-373 CARDINAL DR

Fair

Over: BR CONOWINGO CREEK

1.8 MI EAST OF SR 272, Lancaster, PA

Built 2005 Load: 58.1 t ADT: 215

SR 51 S.B.

Fair

Over: NSSR Local Rd.

Elizabeth Bridge, Allegheny, PA

Built 1951 Load: 58.1 t ADT: 13,696

PENNSYLVANIA AVE.

Fair

Over: MUDDY RUN

BTWN FL AVE & CARTRIDGE, Franklin, PA

Built 1942 Load: 58.6 t ADT: 50

SR 4008

Fair

Over: OPOSSUM CREEK

2 MI.N.W. OF BENDERSVILLE, Adams, PA

Built 1940 Load: 59.0 t ADT: 525

SR 0019 NB SB

Fair

Over: BEAVER AVE.TURNAROUND

19-65 O/BEAV.AVE.TURNRND, Allegheny, PA

Built 1969 Load: 59.0 t ADT: 20,372

LTL DEER CREEK RD

Fair

Over: LITTLE DEER CREEK

1 MI.NORTH OF SR 1016, Allegheny, PA

Built 1939 Load: 59.0 t ADT: 4,270

PINE CREEK ROAD

Fair

Over: LITTLE PINE CREEK

AT PENVIEW ST., Allegheny, PA

Built 1960 Load: 59.0 t ADT: 2,753

RED MUD HOLLOW RD.

Fair

Over: KILBUCK RUN

@ I-79 OVERPASS, Allegheny, PA

Built 1966 Load: 59.0 t ADT: 1,297

OLD FREEPORT ROAD

Fair

Over: LITTLE SYCAMORE RUN

SQ07 SYCAMORE RUN NO. 7, Allegheny, PA

Built 1991 Load: 59.0 t ADT: 2,925

ENLOW RD

Fair

Over: MONTOUR RUN

MT20 MONTOUR RUN NO. 20, Allegheny, PA

Built 1934 Load: 59.0 t ADT: 550

COLERAIN ST

Fair

Over: SAW MILL RUN STREAM

SW06 SAW MILL RUN NO. 6, Allegheny, PA

Built 1920 Load: 59.0 t ADT: 6,348

LARIMER AV

Fair

Over: ALLEGHENY VALLEY RR

130 Larimer Ave over AVRR, Allegheny, PA

Built 1904 Load: 59.0 t ADT: 8,000

MCELHENY RD

Fair

Over: LICK RUN

440003 AT SNOWDEN ROAD, Allegheny, PA

Built 1970 Load: 59.0 t ADT: 250

SR 1001

Fair

Over: DUNNING CREEK

1 MI.E.OF BEDFORD, Bedford, PA

Built 1941 Load: 59.0 t ADT: 572

PA TPK (I-76)

Fair

Over: SR 3012 LR 05032

WEST OF KEGG, Bedford, PA

Built 1939 Load: 59.0 t ADT: 31,200

RICHLANDTOWN PIKE

Fair

Over: TOHICKON CREEK

1.5MI.LR 09085 08B13, Bucks, PA

Built 1964 Load: 59.0 t ADT: 6,540

SR1004

Fair

Over: SILVER CREEK

WEST OF BRUIN, Butler, PA

Built 1939 Load: 59.0 t ADT: 608

SR3029

Fair

Over: LIT CONNOQUENESSING CR

SOUTH OF PROSPECT, Butler, PA

Built 1967 Load: 59.0 t ADT: 538

US 422

Fair

Over: TRAIL & NBR BLACKLICK CR

0.5 MI EAST OF INDIANA CO, Cambria, PA

Built 1930 Load: 59.0 t ADT: 5,688

SR 1001

Fair

Over: R. J. CORMAN RAILROAD

2 MI.E.OF EBENSBURG, Cambria, PA

Built 1962 Load: 59.0 t ADT: 2,288

SR 3045

Fair

Over: S.BR.BLACKLICK CREEK

VINTONDALE BORO., Cambria, PA

Built 1987 Load: 59.0 t ADT: 651

T-352 Lake Road

Fair

Over: S.FORK LITTLE CONEMAUGH

2 MI.SE.OF SOUTHFORK, Cambria, PA

Built 1989 Load: 59.0 t ADT: 500

LENAPE ROAD

Fair

Over: BRANDYWINE CREEK

LENAPE 40G6, Chester, PA

Built 1902 Load: 59.0 t ADT: 7,254

SR4003

Fair

Over: TURKEY RUN

SALEM ROAD, Clarion, PA

Built 1939 Load: 59.0 t ADT: 285

SR 4012 SHADELAND

Fair

Over: OVER CONNEAUT CREEK BR

BEAVER TOWNSHIP, Crawford, PA

Built 1936 Load: 59.0 t ADT: 139

GARDEN STREET

Fair

Over: OVER MILL RUN

GARDEN STREET MEADVILLE, Crawford, PA

Built 1913 Load: 59.0 t ADT: 1,500

581

Fair

Over: TENTH STREET

LEMOYNE, Cumberland, PA

Built 1960 Load: 59.0 t ADT: 81,787

T-390/FDDLRS ELBOW

Fair

Over: US 322; SR 0322

1 MI W OF HUMMELSTOWN, Dauphin, PA

Built 1953 Load: 59.0 t ADT: 2,337

INTERSTATE 95

Fair

Over: BULLENS LANE (TURNBACK)

2MI.NORTH LR-132 43J02, Delaware, PA

Built 1975 Load: 59.0 t ADT: 196,159

SR 949-PA 949

Fair

Over: BUFFALO & PITTSBURGH RR

CARMAN, Elk, PA

Built 1960 Load: 59.0 t ADT: 397

Showing 11,451-11,500 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.