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

GOOD INTENT ROAD

Fair

Over: ROCK CREEK

2.5 N.GETTSBRG/ROCK CREEK, Adams, PA

Built 1963 Load: 30.8 t ADT: 100

MT. HOPE ROAD

Fair

Over: SWAMP CREEK

1 E.MT.HOPE/SWAMP CREEK, Adams, PA

Built 1939 Load: 30.8 t ADT: 100

SR 0028 SH

Fair

Over: GAMMA DRIVE (TWP RD 505)

RIDC INTERCHANGE, Allegheny, PA

Built 1970 Load: 30.8 t ADT: 24,013

SR 0028 SB

Fair

Over: SR 1017-YUTES RUN RD

RT 0028 SB OVER 1017, Allegheny, PA

Built 1970 Load: 30.8 t ADT: 20,245

Westinghouse Brg

Fair

Over: LR1074 TURTLE CR N&S RR

Westinghouse Bridge, Allegheny, PA

Built 1931 Load: 30.8 t ADT: 16,855

PARKWAY WEST

Fair

Over: CLIFFMINE RD MONTOUR RN

MONTOUR RUN INTERCHANGE, Allegheny, PA

Built 1949 Load: 30.8 t ADT: 58,356

RAYMOND SHAFER HW

Fair

Over: SR 0060

I-79 NB OVER SR 0060, Allegheny, PA

Built 1971 Load: 30.8 t ADT: 22,672

RAYMOND SHAFER HW

Fair

Over: PA TURNPIKE

I-79 NB OVER TURNPIKE, Allegheny, PA

Built 1976 Load: 30.8 t ADT: 33,038

TRI BORO EXPY

Fair

Over: THOMPSON RUN

TURTLE CREEK, Allegheny, PA

Built 1965 Load: 30.8 t ADT: 10,645

MONONGAHELA ROAD

Fair

Over: BECKETS RUN

300FT SW OF SR 2013, Allegheny, PA

Built 1930 Load: 30.8 t ADT: 4,283

Fort Pitt Bridge

Fair

Over: MON R NS RR SR 0837 0376

Fort Pitt Bridge, Allegheny, PA

Built 1960 Load: 30.8 t ADT: 38,461

Fort Pitt Bridge

Fair

Over: MON R NS RR SR 0837

Fort Pitt Bridge, Allegheny, PA

Built 1959 Load: 30.8 t ADT: 40,589

PARKWAY EAST

Fair

Over: BEULAH ROAD

CHURCHILL INTERCHANGE, Allegheny, PA

Built 1950 Load: 30.8 t ADT: 69,636

I-579 SB

Fair

Over: 279 28 HOV N&S RR E.OHIO

Veterans Bridge, Allegheny, PA

Built 1988 Load: 30.8 t ADT: 27,514

BLVD ALLIES WB

Fair

Over: FORBES BIRM E&F BRADY

Birmingham Bridge, Allegheny, PA

Built 1928 Load: 30.8 t ADT: 15,565

40th Street Bridge

Fair

Over: NSRC CSX AVR

40th Street Bridge, Allegheny, PA

Built 1924 Load: 30.8 t ADT: 24,109

PRESTLEY RD.

Fair

Over: SR 0079 NB SB

4400 N.W. OF SR 0050, Allegheny, PA

Built 1967 Load: 30.8 t ADT: 7,824

BABCOCK BL

Fair

Over: GIRTYS RUN

738 SOUTHEAST OF SR 4011, Allegheny, PA

Built 1929 Load: 30.8 t ADT: 12,681

PEOPLES RD

Fair

Over: BR.GIRTYS RUN

750 WEST OF SR 4011, Allegheny, PA

Built 1963 Load: 30.8 t ADT: 10,104

WEXFORD RUN RD

Fair

Over: SR 0079 NB SB

WEXFORD RUN ROAD, Allegheny, PA

Built 1974 Load: 30.8 t ADT: 2,283

SLOOP RD

Fair

Over: LOWRIES RUN

INT ROCH RD ON SLOOP RD, Allegheny, PA

Built 1950 Load: 30.8 t ADT: 2,883

FLEMING PARK BR

Fair

Over: OHIO RIVER BC & CSXT RR

OB04 FLEMING PARK BRDG, Allegheny, PA

Built 1955 Load: 30.8 t ADT: 5,888

CLINTON-ENLOW RD

Fair

Over: MONTOUR RUN NORTH BRANCH

MX04 2 MI E OF CLINTON RD, Allegheny, PA

Built 1960 Load: 30.8 t ADT: 500

SIXTH STREET BR

Fair

Over: 10TH ST BYPASS ALLEGH RV

AL02 6 ST TO NORTH SIDE, Allegheny, PA

Built 1928 Load: 30.8 t ADT: 12,824

ALEXANDER ST

Fair

Over: SAW MILL RUN

001 Alexander St Bridge, Allegheny, PA

Built 1924 Load: 30.8 t ADT: 20

HOMESTD HIGHLVL BR

Fair

Over: MON CSX N&S WF DR 5&7

MA12 HOMESTEAD HIGH LEV, Allegheny, PA

Built 1936 Load: 30.8 t ADT: 35,235

EAST WATERFRONT DR

Fair

Over: NORFOLK AND SOUTHERN RR

EAST END FLY-OVER, Allegheny, PA

Built 1995 Load: 30.8 t ADT: 8,000

RAMP V

Fair

Over: BRADY ST AND RAMP T

Birmingham Bridge, Allegheny, PA

Built 1956 Load: 30.8 t ADT: 4,852

RAMP T

Fair

Over: OVER I376 SR2085 RAMPS

Birmingham Bridge, Allegheny, PA

Built 1956 Load: 30.8 t ADT: 12,196

RAMP A_D

Fair

Over: SR 0376 EB WB

SQUIRREL HILL INTERCHANGE, Allegheny, PA

Built 1952 Load: 30.8 t ADT: 15,055

T-338 PONCIC ROAD

Fair

Over: SUGAR CREEK

250 feet s. of SR0268, Armstrong, PA

Built 1964 Load: 30.8 t ADT: 100

MONACA & EAST ROCH

Fair

Over: TR65SB OHIORV NS RR

MONACA & EAST ROCHESTER, Beaver, PA

Built 1959 Load: 30.8 t ADT: 11,187

BVR V EXPWY I-376

Fair

Over: RELOCATED RACCOON CREEK

1 MI N OF ALIQUIPPA INT, Beaver, PA

Built 1969 Load: 30.8 t ADT: 13,339

Vanport Bridge

Fair

Over: OHIO RIV N&S RR HAUL RD

Vanport Bridge, Beaver, PA

Built 1970 Load: 30.8 t ADT: 30,370

SR 0376 WB

Fair

Over: T.R. 535 CHAPEL RD.

I-376 NB O/T.R. 535, Beaver, PA

Built 1973 Load: 30.8 t ADT: 10,890

I-376 EB

Fair

Over: SR 4012 BRADYS RUN PK.

Bradys Run Park Bridge, Beaver, PA

Built 1971 Load: 30.8 t ADT: 10,784

BENNETT RUN RD

Fair

Over: BENNETT RUN

0.3 MI. NE OF TWP.RD.607, Beaver, PA

Built 1954 Load: 30.8 t ADT: 3,820

PARK RD

Fair

Over: BR.LITTLE TRAVERSE CREEK

50 WEST OF TWP. RD. 480, Beaver, PA

Built 1934 Load: 30.8 t ADT: 435

SR 4042

Fair

Over: N & S RR BEAVER RIVER

OLD ROCHESTER-BRIDGEWATER, Beaver, PA

Built 1933 Load: 30.8 t ADT: 3,165

I-70 EBL

Fair

Over: TURNPIKE EXIT 161 RAMPS

OVER PA TURNPIKE EXIT 161, Bedford, PA

Built 1963 Load: 30.8 t ADT: 4,916

I-70 WBL

Fair

Over: SR 2035

OVER SR 2035 AT EXIT 149, Bedford, PA

Built 1963 Load: 30.8 t ADT: 4,739

SR 1007

Fair

Over: US 30

NEAR EVERETT BORO., Bedford, PA

Built 1979 Load: 30.8 t ADT: 4,210

T-478

Fair

Over: PA TPK (I-76)

NEAR BEDFORD, Bedford, PA

Built 1939 Load: 30.8 t ADT: 200

SR 2029 (LR 05021)

Fair

Over: PA TPK (I-76)

NEAR BREEZEWOOD INTERCHGE, Bedford, PA

Built 1969 Load: 30.8 t ADT: 390

SR 61 (LR 160)

Fair

Over: READING/NORTHERN RR

HAMBURG BOROUGH, Berks, PA

Built 1954 Load: 30.8 t ADT: 20,892

PA 73 (LR 197)

Fair

Over: MANATAWNY CREEK

@ HAAS RD.(T-585), Berks, PA

Built 1951 Load: 30.8 t ADT: 8,413

SR 100(LR 284)

Fair

Over: PERKIOMEN CREEK

HEREFORD, Berks, PA

Built 1951 Load: 30.8 t ADT: 11,693

US 422(LR 149)

Fair

Over: FURNACE CREEK

ROBESONIA BOROUGH, Berks, PA

Built 1947 Load: 30.8 t ADT: 15,323

SR 3023(LR 06038)

Fair

Over: CACOOSING CREEK

STATE HILL ROAD, Berks, PA

Built 1927 Load: 30.8 t ADT: 11,555

SR 3037 (LR 06050)

Fair

Over: TULPEHOCKEN CREEK

CHARMING FORGE, Berks, PA

Built 1938 Load: 30.8 t ADT: 108

Showing 3,201-3,250 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.