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

SR 322-US 322

Fair

Over: SR 3014-US 322 BUS

BOALSBURG, Centre, PA

Built 1971 Load: 55.3 t ADT: 11,372

CREEK ROAD

Fair

Over: INDIAN RUN CREEK

400FT N.LR 15154 19G1, Chester, PA

Built 1932 Load: 55.3 t ADT: 549

OXFORD ROAD

Fair

Over: E.BR.BIG ELK CREEK

4MI.EAST OXFORD 52F1, Chester, PA

Built 1970 Load: 55.3 t ADT: 3,092

FIRST AVENUE

Fair

Over: WEST BR BRANDYWINE CREEK

COATESVILLE 28K8, Chester, PA

Built 1970 Load: 55.3 t ADT: 7,156

PA TPK (I-76)

Fair

Over: Trib. to Marsh Creek

SOUTH OF MARSH, Chester, PA

Built 1950 Load: 55.3 t ADT: 39,934

SR208

Fair

Over: CANOE CREEK

KNOX NO.2, Clarion, PA

Built 1996 Load: 55.3 t ADT: 4,263

T518 WINTERBURN RD

Fair

Over: HEATH RUN

600 FT SOUTH OF SR 255, Clearfield, PA

Built 1930 Load: 55.3 t ADT: 30

SR 1018 TOWNVILLE

Fair

Over: OVER MUDDY CREEK BRANCH

STEUBEN TOWNSHIP, Crawford, PA

Built 1905 Load: 55.3 t ADT: 224

SR 1009 RICH VAL.R

Fair

Over: CONODOGUINET CREEK

JUST NORTH OF SR1012, Cumberland, PA

Built 1964 Load: 55.3 t ADT: 1,132

EASTPOMFRETSTREET

Fair

Over: LETORT SPRING RUN

CARLISLE BORO/LETORT SPRG, Cumberland, PA

Built 1983 Load: 55.3 t ADT: 2,000

KEYSTONE AVENUE

Fair

Over: SWATARA CREEK

SWATARA CR; MIDDLETOWN, Dauphin, PA

Built 1977 Load: 55.3 t ADT: 1,200

2ND STREET

Fair

Over: CHESTER CREEK

CHESTER CREEK 43G06, Delaware, PA

Built 1919 Load: 55.3 t ADT: 312

BISHOP HOLLOW ROAD

Fair

Over: CRUM CREEK;SPRINGTON RES

SPRINGTON RESERV. 24J10, Delaware, PA

Built 1920 Load: 55.3 t ADT: 3,800

GRADYVILLE ROAD

Fair

Over: CRUM CREEK (RESERVOIR)

SPRINGTON RESERV. 24H10, Delaware, PA

Built 1987 Load: 55.3 t ADT: 3,146

PAXON HOLLOW ROAD

Fair

Over: CRUM CREEK

1 MI.NORTH US-1 ADC 20-A2, Delaware, PA

Built 1937 Load: 55.3 t ADT: 1,233

RAMP A COMM BARRY

Fair

Over: SEVENTH ST;FLOWER STREET

RAMP A COM BARRY 43D06, Delaware, PA

Built 1974 Load: 55.3 t ADT: 2,555

SR 4038

Fair

Over: WASHINGTON RUN

PERRY TOWNSHIP, Fayette, PA

Built 1899 Load: 55.3 t ADT: 997

SR 3001

Fair

Over: DUNKARD FORK WHEELING CK

RICHHILL TOWNSHIP, Greene, PA

Built 1960 Load: 55.3 t ADT: 102

SR 4003

Fair

Over: DUNKARD BR WHEELING CK

RICHHILL TOWNSHIP, Greene, PA

Built 1960 Load: 55.3 t ADT: 54

TOWNSHIP ROAD 551

Fair

Over: CRAYNES RUN

WEST OF COSTILE, Greene, PA

Built 1993 Load: 55.3 t ADT: 150

PA 994

Fair

Over: BLACK LOG CREEK

0.1 MILE WEST OF US 522, Huntingdon, PA

Built 1964 Load: 55.3 t ADT: 3,676

SR 3006

Fair

Over: GREAT TROUGH CREEK

1 MI. WEST OF ROBERTSDALE, Huntingdon, PA

Built 1959 Load: 55.3 t ADT: 508

SR3033

Fair

Over: FIVEMILE RUN

SLIMAK, Jefferson, PA

Built 1932 Load: 55.3 t ADT: 232

FAIRVIEW RD T-883

Fair

Over: DELLINGER RUN

.36 M NW OF SR 772, Lancaster, PA

Built 1992 Load: 55.3 t ADT: 310

US 22(LR 771)

Fair

Over: LR 163* ROTH AVE.&19TH S

OVER 19TH ST./ ROTH AVE., Lehigh, PA

Built 1953 Load: 55.3 t ADT: 76,351

I-78(LR 1045)

Fair

Over: PA 100(LR 672)

FOGELSVILLE INTERCHANGE, Lehigh, PA

Built 1958 Load: 55.3 t ADT: 113,637

SR 4027 (LR 39060)

Fair

Over: JORDAN CREEK

GAME PRESERVE ROAD, Lehigh, PA

Built 1961 Load: 55.3 t ADT: 253

SR 87

Fair

Over: OVER BIG BEAR CREEK

.5 MI S OF BARBOURS, Lycoming, PA

Built 1978 Load: 55.3 t ADT: 702

SR 62 SHNGO.VLY.EX

Fair

Over: OVER RIVERSIDE DR/RIVER

CITY OF SHARON, Mercer, PA

Built 1956 Load: 55.3 t ADT: 9,562

SCHUYLKILL EWAY EB

Fair

Over: CITY LINE AVE & RAMP C

CITY LINE INTERCH 3479G09, Montgomery, PA

Built 1953 Load: 55.3 t ADT: 37,404

FITZWATERTOWN ROAD

Fair

Over: BRANCH PENNYPACK CREEK

HEATON BOROUGH 3259-B5, Montgomery, PA

Built 1967 Load: 55.3 t ADT: 14,968

RAMP C & RAMP D

Fair

Over: MATSONFORD RD.EASTBOUND

CONSHOHOCKEN INTER.35D04, Montgomery, PA

Built 1977 Load: 55.3 t ADT: 8,461

SR 2028 (LR 48018)

Fair

Over: US 22 (LR 773)

GREENWOOD AVE.OVER U.S.22, Northampton, PA

Built 1954 Load: 55.3 t ADT: 13,016

SR 3007 (LR 48011)

Fair

Over: NANCY RUN

WILLOW PARK ROAD, Northampton, PA

Built 1960 Load: 55.3 t ADT: 5,377

MIDDLE VILLAGE RD

Fair

Over: JACOBY CREEK

NW OF PA 611, Northampton, PA

Built 1995 Load: 55.3 t ADT: 150

LEHIGH STREET

Fair

Over: MONOCACY CREEK

0.2 MILE EAST OF PA 378, Northampton, PA

Built 1967 Load: 55.3 t ADT: 4,000

SR 61

Fair

Over: OVER LT. SHAMOKIN CR.

VILLAGE OF HAMILTON, Northumberland, PA

Built 1988 Load: 55.3 t ADT: 6,259

SR 4002

Fair

Over: OVER WILSON RUN

RIVERSIDE BORO, Northumberland, PA

Built 1961 Load: 55.3 t ADT: 66

PA 850; SR 0850

Fair

Over: TRIB TO FISHING CR

E. 2 MI. OF SHERMANSDALE, Perry, PA

Built 1962 Load: 55.3 t ADT: 1,548

SR 0590 TR 590

Fair

Over: LACKAWAXEN RIVER

LACKAWAXEN TWP JCT SR1014, Pike, PA

Built 1964 Load: 55.3 t ADT: 1,065

SR 2004

Fair

Over: OUTLET MARCEL LAKE

DELAWARE TWP 3 M W SR2001, Pike, PA

Built 1940 Load: 55.3 t ADT: 2,205

SR 4014(L.R.53078)

Fair

Over: MAHANTANGO CREEK

VISTA ROAD, Schuylkill, PA

Built 1931 Load: 55.3 t ADT: 61

SR 2005

Fair

Over: TR.ELK LICK CREEK

.5 MI.W.OF SUMMIT MILLS, Somerset, PA

Built 1937 Load: 55.3 t ADT: 333

T-606

Fair

Over: DIXIE RUN

2.5 MI. EAST OF BLACKWELL, Tioga, PA

Built 1934 Load: 55.3 t ADT: 20

PAINTER-LEETONIA R

Fair

Over: SLIDE ISLAND DRAFT

1 MI N. OF LEETONIA, Tioga, PA

Built 2000 Load: 55.3 t ADT: 25

T-316 ELDRED CTR

Fair

Over: OVER CALDWELL CREEK

ELDRED TOWNSHIP, Warren, PA

Built 1940 Load: 55.3 t ADT: 100

SR 0079

Fair

Over: SR 1009

SOUTH STRABANE TWP, Washington, PA

Built 1964 Load: 55.3 t ADT: 24,878

SR 0079

Fair

Over: SR 0519

NORTH STRABANE TOWNSHIP, Washington, PA

Built 1993 Load: 55.3 t ADT: 26,115

SR 2081

Fair

Over: PIKE RUN

WEST PIKE RUN TOWNSHIP, Washington, PA

Built 1913 Load: 55.3 t ADT: 589

SR 4009

Fair

Over: RACCOON CREEK

ROBINSON TOWNSHIP, Washington, PA

Built 1929 Load: 55.3 t ADT: 1,152

Showing 11,201-11,250 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.