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

IRISHTOWN RD

Fair

Over: PINEY FORK CREEK

280 SOUTH OF SR 3004, Allegheny, PA

Built 1961 Load: 37.2 t ADT: 2,743

PA TPK (I-76)

Fair

Over: HULTON RD

WEST OF MILLTOWN, Allegheny, PA

Built 1952 Load: 37.2 t ADT: 38,689

MAIN ST

Fair

Over: CSX RAILROAD

103001 SHOUSETOWN BR-PQ28, Allegheny, PA

Built 1988 Load: 37.2 t ADT: 1,000

OLD BUTLER PLNK RD

Fair

Over: PINE CREEK

PI16 PINE CREEK NO. 16, Allegheny, PA

Built 1915 Load: 37.2 t ADT: 4,130

SIXTEENTHSTREET BR

Fair

Over: SMALLMAN ST ALLEG. RIV.

AL05 16TH ST BRIDGE, Allegheny, PA

Built 1922 Load: 37.2 t ADT: 14,656

RAMP ST

Fair

Over: STREETS RUN

SZ02 STREETS RUN #2, Allegheny, PA

Built 1981 Load: 37.2 t ADT: 4,092

BAJO ST

Fair

Over: BECKS RUN

BC02 BECKS RUN NO. 2, Allegheny, PA

Built 1946 Load: 37.2 t ADT: 400

BROWNSVILLE RD

Fair

Over: W&LE RR

PV01 BROWNSVILLE RD #1, Allegheny, PA

Built 1984 Load: 37.2 t ADT: 15,239

S-PARK ICE-RINK RD

Fair

Over: CATFISH RUN

CT12 CATFISH RUN NO. 12, Allegheny, PA

Built 1960 Load: 37.2 t ADT: 20

SR0028 NB

Fair

Over: SR3023

IRON BRIDGE ROAD NB, Armstrong, PA

Built 1971 Load: 37.2 t ADT: 6,641

SR0028 SB

Fair

Over: SR3023

IRON BRIDGE ROAD SB, Armstrong, PA

Built 1971 Load: 37.2 t ADT: 6,491

SR0066

Fair

Over: CAMPBELL RUN

CAMPBELL RUN NO.1, Armstrong, PA

Built 1947 Load: 37.2 t ADT: 5,548

SR0210

Fair

Over: N BR PLUM CREEK

KEYSTONE NO.2, Armstrong, PA

Built 1965 Load: 37.2 t ADT: 1,410

SR0839

Fair

Over: LITTLE PINE RUN

REDBANK TWP-NR MCWILLIAMS, Armstrong, PA

Built 1958 Load: 37.2 t ADT: 358

T-821 HEFFELFINGER

Fair

Over: NORTH FORK PINE CREEK

1600 feet west of SR 0066, Armstrong, PA

Built 1924 Load: 37.2 t ADT: 50

SR 168

Fair

Over: N/S RR SERVICE RD OHIOR

SHIPPINGPORT BRIDGE, Beaver, PA

Built 1961 Load: 37.2 t ADT: 5,140

CHAPEL RD

Fair

Over: LOGTOWN RUN

0.5 MI N OF SR 3007, Beaver, PA

Built 1950 Load: 37.2 t ADT: 2,676

SR 1010

Fair

Over: RAYSTOWN BR JUNIATA RIV

WOY BRIDGE 1.12 MILE EAST, Bedford, PA

Built 1937 Load: 37.2 t ADT: 200

T555 JACKS CORNER

Fair

Over: MAPLE RUN

1.8 MI.N.OF YELLOW CREEK, Bedford, PA

Built 1948 Load: 37.2 t ADT: 155

SR 2002

Fair

Over: WILSON RUN

MILLERS CORNER, Bedford, PA

Built 1964 Load: 37.2 t ADT: 15

SR 2013

Fair

Over: ELK LICK CREEK

.25 MI.N.OF CHANEYSVILLE, Bedford, PA

Built 1941 Load: 37.2 t ADT: 164

SR 2029

Fair

Over: BRUSH CREEK

1 MI W OF JACKSON MILLS, Bedford, PA

Built 1963 Load: 37.2 t ADT: 97

SR 4019

Fair

Over: OPPENHEIMER RUN

0.75 MI.NW.OF CESSNA, Bedford, PA

Built 1969 Load: 37.2 t ADT: 326

US 30 (LR 39)

Fair

Over: PA TPK (I-76)

EAST OF BREEZEWOOD, Bedford, PA

Built 1969 Load: 37.2 t ADT: 3,059

T-551 MOSQT.HOL.RD

Fair

Over: SIX MILE RUN

DEFIANCE, Bedford, PA

Built 2006 Load: 37.2 t ADT: 474

PA 61 (LR 160)

Fair

Over: SR 4028;RIV;RDG READ/NOR

HAMBURG BOROUGH LINE, Berks, PA

Built 1954 Load: 37.2 t ADT: 20,892

PA 183 (LR 310)

Fair

Over: NORTHKILL CREEK

.5 MI N OF BERNVILLE, Berks, PA

Built 1954 Load: 37.2 t ADT: 12,482

SR 422(LR 146)

Fair

Over: ANTIETAM CREEK

AT SHELBOURNE RD. INTER., Berks, PA

Built 1929 Load: 37.2 t ADT: 32,159

SR 1022 (LR 06140)

Fair

Over: W.BRANCH PERKIOMEN CREEK

HUFF CHURCH, Berks, PA

Built 1962 Load: 37.2 t ADT: 3,224

SR 2031(LR 06087)

Fair

Over: ALLEGHENY CREEK

MIDDLE ALLEGHENY BRIDGE, Berks, PA

Built 1888 Load: 37.2 t ADT: 1,512

SR 3039(LR 06050)

Fair

Over: TRIB.TO TULPEHOCKEN CK.

@ BUNKERHILL RD., Berks, PA

Built 1952 Load: 37.2 t ADT: 194

SR 4020(LR 06037)

Fair

Over: PLUM CREEK

GARFIELD, Berks, PA

Built 1947 Load: 37.2 t ADT: 1,570

LR 412 SR 0023

Fair

Over: PA TPK (I-76)

EAST OF MORGANTOWN, Berks, PA

Built 1950 Load: 37.2 t ADT: 10,955

HOTTENSTEIN ROAD

Fair

Over: MILL CREEK

EAGLE POINT BRIDGE, Berks, PA

Built 1977 Load: 37.2 t ADT: 264

SR 2011

Fair

Over: CLOVER CREEK

2 MI.S.OF WILLIAMSBURG, Blair, PA

Built 1952 Load: 37.2 t ADT: 1,174

SR 3013

Fair

Over: DRY RUN

.25 MI.S.OF DUNCANSVILLE, Blair, PA

Built 1955 Load: 37.2 t ADT: 10,269

SR 4017

Fair

Over: SPRING RUN

JUNIATA GAP, Blair, PA

Built 1961 Load: 37.2 t ADT: 3,294

T333 HALTER CRK RD

Fair

Over: HALTER CREEK

.5 MI.W.OF ROARING SPRING, Blair, PA

Built 1922 Load: 37.2 t ADT: 87

T351 Heuston Road

Fair

Over: Halter Creek

1 MI.SW.OF ROARING SPRING, Blair, PA

Built 1956 Load: 37.2 t ADT: 231

PENNSYLVANIA AVE

Fair

Over: LITTLE JUNIATA RIVER

BOROUGH OF TYRONE, Blair, PA

Built 1898 Load: 37.2 t ADT: 3,406

US 6

Fair

Over: SUGAR CREEK

TROY BOROUGH, Bradford, PA

Built 1940 Load: 37.2 t ADT: 9,033

SR 14

Fair

Over: TRIB. TO SOUTH CREEK

1.5 MI N. SNEDEKERVILLE, Bradford, PA

Built 1957 Load: 37.2 t ADT: 1,523

SR 3019

Fair

Over: NORTH BRANCH TOWANDA CRK

BAILEY CORNERS, Bradford, PA

Built 1955 Load: 37.2 t ADT: 308

SR 3034

Fair

Over: SOUTH FORK SUGAR CREEK

2 MI. S. OF TROY BORO, Bradford, PA

Built 1948 Load: 37.2 t ADT: 480

OLD LINCOLN HIGHWY

Fair

Over: NEW US1 SOUTHBOUND

SNIPES CORNER 39A06, Bucks, PA

Built 1954 Load: 37.2 t ADT: 3,331

SECOND STREET PIKE

Fair

Over: NORFOLK SOUTHERN

SOUTH OF PENNA.TPK.35C13, Bucks, PA

Built 1988 Load: 37.2 t ADT: 14,734

TYBURN ROAD

Fair

Over: BRANCH MARTINS CREEK

.3MI.SOUTH US 1 38F08, Bucks, PA

Built 1954 Load: 37.2 t ADT: 14,412

EAST TRENTON AVE.

Fair

Over: PENNSYLVANIA CANAL

1BLK.DELAWARE RIV. 39C03, Bucks, PA

Built 1938 Load: 37.2 t ADT: 14,449

NEWBOLD ROAD

Fair

Over: ROCK RUN

.2MI.S.OF US-1 38K07, Bucks, PA

Built 1954 Load: 37.2 t ADT: 3,909

BEAVER RUN ROAD

Fair

Over: RAPP CREEK

0.5 MI SE OF SR 0611, Bucks, PA

Built 1902 Load: 37.2 t ADT: 400

Showing 6,751-6,800 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.