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

LANCASTER AVENUE

Poor

Over: EAST BR. BRANDYWINE CK.

DOWNINGTOWN 30G2, Chester, PA

Built 1921 Load: 30.8 t ADT: 16,688

CONESTOGA ROAD

Poor

Over: PINE CREEK

2MI.NORTH PA TPK. 21J3, Chester, PA

Built 1960 Load: 30.8 t ADT: 10,086

WEST BRIDGE STREET

Poor

Over: STONEY RUN CREEK

1 MI NE PA 23 7D10, Chester, PA

Built 1950 Load: 30.8 t ADT: 4,418

WAGONTOWN ROAD

Poor

Over: WEST BR OF BRANDYWINE CR

TO LR 1004 28H03/ 3579-H2, Chester, PA

Built 1918 Load: 30.8 t ADT: 964

MILL ROAD

Poor

Over: VALLEY CREEK

TREDYFFRIN TWP 3365-E9, Chester, PA

Built 1912 Load: 30.8 t ADT: 2,897

SR 2012

Poor

Over: LITTLE CLEARFIELD CREEK

NEW MILLPORT, Clearfield, PA

Built 1937 Load: 30.8 t ADT: 136

T-519 FLEGAL RD

Poor

Over: MOOSE CREEK

400 FT SOUTH OF SR 322, Clearfield, PA

Built 1930 Load: 30.8 t ADT: 400

SR 285 BROOKS XING

Poor

Over: ROCK CREEK

GREENWOOD TOWNSHIP, Crawford, PA

Built 1937 Load: 30.8 t ADT: 2,071

T-721 LESTER ROAD

Poor

Over: OVER PADEN CREEK

STEAMBURG CONNEAUT TWP., Crawford, PA

Built 1940 Load: 30.8 t ADT: 250

SR 3007

Poor

Over: NORFOLK SOUTHERN

19TH STREET 3007C09, Dauphin, PA

Built 1965 Load: 30.8 t ADT: 8,494

MULBERRY STREET

Poor

Over: PAXTON CREEK

PAXTON CR/MULBERRY ST/HBG, Dauphin, PA

Built 1940 Load: 30.8 t ADT: 900

MULBERRY ST HARRI

Poor

Over: PAXTON CREEK

N SIDE STATE ST/PAXTON CR, Dauphin, PA

Built 1960 Load: 30.8 t ADT: 1,500

E. LANCASTER AVE

Poor

Over: BRANCH BROWNS RUN

W.I-476 INTERCHANG 14G09, Delaware, PA

Built 1960 Load: 30.8 t ADT: 29,090

HIBBS AVENUE

Poor

Over: MUCKINIPATTIS CREEK

.8 Mi. N US-13 3698-C6, Delaware, PA

Built 1950 Load: 30.8 t ADT: 140

SR 0381

Poor

Over: MEADOW RUN

WHARTON TOWNSHIP, Fayette, PA

Built 1961 Load: 30.8 t ADT: 1,147

SR 1039

Poor

Over: BRANCH OF DICKERSON RUN

DUNBAR TOWNSHIP, Fayette, PA

Built 1938 Load: 30.8 t ADT: 1,368

SR 4003

Poor

Over: DUNLAP CREEK

BROWNSVILLE BOROUGH, Fayette, PA

Built 1839 Load: 30.8 t ADT: 6,197

KENNEDY STREET

Poor

Over: FALLING SPRING CREEK

1000 FT SE OF US 11, Franklin, PA

Built 1930 Load: 30.8 t ADT: 3,750

SR 3017

Poor

Over: SOUTH BRUSH CREEK

EMMAVILLE, Fulton, PA

Built 1931 Load: 30.8 t ADT: 284

SR8006(I 70 0FFRP)

Poor

Over: MCKEES RUN

AMARANTH EXIT I-70, Fulton, PA

Built 1932 Load: 30.8 t ADT: 80

SR0119 NB&SB

Poor

Over: TWO LICK CREEK

119 / TWO LICK, Indiana, PA

Built 1960 Load: 30.8 t ADT: 15,630

SR0403

Poor

Over: YELLOW CREEK

HEILWOOD, Indiana, PA

Built 1934 Load: 30.8 t ADT: 736

SR3008

Poor

Over: MUDDY RUN

MUDDY RUN NO.1, Indiana, PA

Built 1941 Load: 30.8 t ADT: 149

SR4001

Poor

Over: MUDLICK RUN

MUDLICK RUN NO.1, Indiana, PA

Built 1934 Load: 30.8 t ADT: 439

SR4021

Poor

Over: CONDRON RUN

SMICKSBURG NO.2, Indiana, PA

Built 1960 Load: 30.8 t ADT: 274

ANDERSON ROAD

Poor

Over: RUNAWAY RUN

0.15 MILES SW OF SR 28, Jefferson, PA

Built 1911 Load: 30.8 t ADT: 50

SR 8001

Poor

Over: SR 0011 TR 11 NB

MOOSIC BORO OVER TR 11 NB, Lackawanna, PA

Built 1955 Load: 30.8 t ADT: 2,580

SR 4033

Poor

Over: BACK RUN

2 MI NE OF MT. JOY, Lancaster, PA

Built 1934 Load: 30.8 t ADT: 2,193

T-503 HOLLINGER RD

Poor

Over: MILL CREEK

250 FT SW OF US 222, Lancaster, PA

Built 1917 Load: 30.8 t ADT: 150

EASTBROOK RD

Poor

Over: HOTTENBAUGH RUN

0.2 MI. W.OF TWP. RD. 533, Lawrence, PA

Built 1930 Load: 30.8 t ADT: 3,153

SR 4024 (LR 39056)

Poor

Over: ONTELAUNEE CREEK

MOSSERVILLE ROAD, Lehigh, PA

Built 1933 Load: 30.8 t ADT: 876

SR 0011 TR 11

Poor

Over: HUNLOCK CREEK

HUNLOCK TWP JCT SR 4016, Luzerne, PA

Built 1940 Load: 30.8 t ADT: 5,912

I-81 NB

Poor

Over: W. FOOTHILLS DRIVE

BUTLER TWP 2 M N TR 93, Luzerne, PA

Built 1965 Load: 30.8 t ADT: 13,126

I-81 SB

Poor

Over: SR 3007 (BLUE RIDGE TR)

DORRANCE TWP OVER SR 3007, Luzerne, PA

Built 1965 Load: 30.8 t ADT: 17,836

SR 0081 I-81 SB

Poor

Over: SR 8011 RAMP A

HANVR TP OVR SR8011 RMP A, Luzerne, PA

Built 1967 Load: 30.8 t ADT: 26,444

T- 464

Poor

Over: WHITE DEER HOLE CREEK

2.2 MI E OF ELIMSPORT, Lycoming, PA

Built 1954 Load: 30.8 t ADT: 108

T-374 CLARK STREET

Poor

Over: S BR KNAPP CREEK

300 FT NORTH OF SR 246, McKean, PA

Built 1955 Load: 30.8 t ADT: 20

BRIDGE 1512 T-623

Poor

Over: OVER COOL SPRINGS CREEK

RUNKLE LANE FAIRVIEW TWP., Mercer, PA

Built 1954 Load: 30.8 t ADT: 61

T-439

Poor

Over: TEA CREEK

400FT W INTER T439-LR29, Mifflin, PA

Built 1930 Load: 30.8 t ADT: 628

I-80 EB (LR 1002)

Poor

Over: SR 2005 (LR 45019)

OVER SCHAEFER SCHOOLHOUSE, Monroe, PA

Built 1963 Load: 30.8 t ADT: 18,547

LUMBER STREET

Poor

Over: MACOBY CREEK

GREEN LANE 2917E6, Montgomery, PA

Built 1931 Load: 30.8 t ADT: 680

ARMAND HAMMER BLVD

Poor

Over: NORFOLK SOUTHERN RR

E POTTSTOWN 3139B03, Montgomery, PA

Built 1942 Load: 30.8 t ADT: 16,320

RIDGE PIKE

Poor

Over: NORFOLK SOUTHERN

300 SE I-276 ADC 3367-K4, Montgomery, PA

Built 1937 Load: 30.8 t ADT: 36,517

422 - RAMPS K & L

Poor

Over: 422-COUNTY LINE EXPRESS

U. MER. TWP. 3366D05, Montgomery, PA

Built 1965 Load: 30.8 t ADT: 6,174

SR 3011; TWP RD

Poor

Over: LAUREL RUN

2 MI W OF LANDISBURG, Perry, PA

Built 1949 Load: 30.8 t ADT: 1,222

MIDDLE RIDGE RD

Poor

Over: BIG BUFFALO CREEK

1 MI W OF ESHCOL, Perry, PA

Built 1949 Load: 30.8 t ADT: 785

SR 0006 TR 6

Poor

Over: PP&L FLUME

PALMYRA TWP .1 M E TR 590, Pike, PA

Built 1959 Load: 30.8 t ADT: 9,766

SR 4007 (LR 53086)

Poor

Over: LITTLE MAHANOY CREEK

MCKNIGHT STREET, Schuylkill, PA

Built 1940 Load: 30.8 t ADT: 2,728

Lincoln Lane T-413

Poor

Over: MAHANOY CREEK

2100 FT NORTH OF T390, Schuylkill, PA

Built 1955 Load: 30.8 t ADT: 20

T682 BLUEBIRD SP R

Poor

Over: QUEMAHONING CREEK

.5 MI.E.OF SIPESVILLE, Somerset, PA

Built 1914 Load: 30.8 t ADT: 34

Showing 22,151-22,200 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.