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 4019 METHODIST

Fair

Over: OVER LITTLE SHENANGO R

SUGAR GROVE TOWNSHIP, Mercer, PA

Built 1933 Load: 68.9 t ADT: 1,054

SR 3002(LR 45052)

Fair

Over: AQUASHICOLA CREEK

UPPER SMITH GAP ROAD, Monroe, PA

Built 1933 Load: 68.9 t ADT: 340

SR 1003

Fair

Over: OVER DRY RUN

1 MI N OF WATSONTOWN, Northumberland, PA

Built 1950 Load: 68.9 t ADT: 634

SR 49

Fair

Over: OVER COWANESQUE RIVER

1.5 MI W OF WESTFIELD, Tioga, PA

Built 1986 Load: 68.9 t ADT: 1,802

SR 0287

Fair

Over: OVER HARRISON RUN

VILLAGE OF MORRIS, Tioga, PA

Built 1954 Load: 68.9 t ADT: 1,199

PA TPK (PA-66)

Fair

Over: T-699

HEMPFIELD TWP, Westmoreland, PA

Built 1991 Load: 68.9 t ADT: 3,763

RAMP D

Fair

Over: RAMP B; NSRC RR

1MI.S.CITY LINE 3479J10, Philadelphia, PA

Built 1960 Load: 68.9 t ADT: 28,503

BAKERSTOWN RD

Fair

Over: CSX RAILROAD

1/4 MI. EAST OF SR 4076, Allegheny, PA

Built 1977 Load: 69.9 t ADT: 5,506

CRAFTON BL

Fair

Over: PAT WEST BUSWAY

421001 BLACKS BRIDGE, Allegheny, PA

Built 1968 Load: 69.9 t ADT: 1,434

PA 96

Fair

Over: BETHEL HOLLOW RUN

0.8 MI.S.OF NEW PARIS, Bedford, PA

Built 1956 Load: 69.9 t ADT: 1,639

SR 504-PA 504

Fair

Over: DEWITT RUN

UNIONVILLE, Centre, PA

Built 1934 Load: 69.9 t ADT: 238

SR 729-PA 729

Fair

Over: WATTS CREEK

KERRMOOR, Clearfield, PA

Built 1993 Load: 69.9 t ADT: 1,089

BALTIMORE PIKE

Fair

Over: COBBS CREEK

PHILADELPHIA LIMIT 36D01, Delaware, PA

Built 1927 Load: 69.9 t ADT: 13,856

MID-COUNTY EXWY.SB

Fair

Over: RAMP 3 TO I-95 (NB)

MC DADE BLVD.INTC. 43J01, Delaware, PA

Built 1987 Load: 69.9 t ADT: 28,908

SR0422

Fair

Over: YELLOW CREEK

YELLOW CREEK NO.3, Indiana, PA

Built 1957 Load: 69.9 t ADT: 6,909

SR4005

Fair

Over: PEKIN RUN

NEAR RICHARDSVILLE, Jefferson, PA

Built 1952 Load: 69.9 t ADT: 324

MAIN STREET

Fair

Over: WILDCAT CREEK

BLAKELY ADJ RIVERSIDE DR, Lackawanna, PA

Built 1991 Load: 69.9 t ADT: 11,408

PA.472; Kirkwood

Fair

Over: Octoraro Crk (Reservior)

At Chester Co. Line, Lancaster, PA

Built 1950 Load: 69.9 t ADT: 6,440

SR 2033

Fair

Over: LACKAWANNA RIVER

DURYEA BO 400 N SR 2006, Luzerne, PA

Built 1983 Load: 69.9 t ADT: 1,245

BRIDGE 2812 HAYWD

Fair

Over: OVER HOGBACK RUN

HAYWOOD ST.WEST MIDDLESEX, Mercer, PA

Built 1928 Load: 69.9 t ADT: 41

BRIDGE 1310 T-587

Fair

Over: OVER CHESTNUT RUN

W.LAKE RD PYMATUNING TWP., Mercer, PA

Built 1965 Load: 69.9 t ADT: 585

SCHUYLKILL EXPWAY.

Fair

Over: HOLLOW ROAD & CREEK

GLADWYNE EXIT 3478-K04, Montgomery, PA

Built 1951 Load: 69.9 t ADT: 85,964

ANDERS ROAD

Fair

Over: TOWAMENCIN CREEK

.3 Mi NW PA-363 3143-H5, Montgomery, PA

Built 1971 Load: 69.9 t ADT: 560

RAMP M WAS MCB-102

Fair

Over: SR 3007

MID-COUNTY INTERCHANGE, Montgomery, PA

Built 1992 Load: 69.9 t ADT: 32,775

SR 2005

Fair

Over: OVER LOGAN RUN

5 MI S.OF RIVERSIDE BORO., Northumberland, PA

Built 1930 Load: 69.9 t ADT: 172

SR 1013

Fair

Over: OVER HAMMOND CREEK

VILLAGE OF JACKSON CENTER, Tioga, PA

Built 1955 Load: 69.9 t ADT: 237

SR0015

Fair

Over: BUFFALO CREEK

BORO OF LEWISBURG, Union, PA

Built 1930 Load: 69.9 t ADT: 21,561

T-364 E.WAYNE ROAD

Fair

Over: OVER LAKE CREEK

JACKSON TOWNSHIP, Venango, PA

Built 1900 Load: 69.9 t ADT: 100

T-568 EGYPT HOLLOW

Fair

Over: OVER WIDDELFIELD RUN

PINE GROVE TOWNSHIP, Warren, PA

Built 1955 Load: 69.9 t ADT: 100

AVENUE B

Fair

Over: JACKS RUN

AVE B IN BUNCHER PARK, Westmoreland, PA

Built 1984 Load: 69.9 t ADT: 800

11TH STREET

Fair

Over: VINE STREET EXPRESSWAY

VINE STREET EXWY 3590E07, Philadelphia, PA

Built 1990 Load: 69.9 t ADT: 6,096

WISSAHICKON AVENUE

Fair

Over: SEPTA (CHESTNUT HILL W)

NEAR QUEEN LANE 3480B07, Philadelphia, PA

Built 1916 Load: 69.9 t ADT: 12,244

SR 3007 COBHAM STA

Fair

Over: OVER PERRY MCGEE RUN

DEERFIELD TOWNSHIP, Warren, PA

Built 2003 Load: 69.9 t ADT: 557

SR 0356 WAYNE ST.

Fair

Over: B&P B&LE RRS; CONNOQ CR

WAYNE STREET VIADUCT, Butler, PA

Built 2009 Load: 69.9 t ADT: 7,709

CLAIRTON BLVD

Fair

Over: TR. 51 OVER LEWIS RUN

AT INT SR 2032, Allegheny, PA

Built 1958 Load: 70.8 t ADT: 26,691

TUSCARAWAS RD

Fair

Over: N.FORK LITTLE BEAVER CK.

1000 NORTH OF SR 4013, Beaver, PA

Built 1985 Load: 70.8 t ADT: 4,056

PA TPK (I-76)

Fair

Over: PA TPK RAMP A

BEAVER VALLEY INTERCHANGE, Beaver, PA

Built 1952 Load: 70.8 t ADT: 21,390

SR 3017

Fair

Over: BUFFALO RUN

BUFFALO MILLS, Bedford, PA

Built 1959 Load: 70.8 t ADT: 64

CREEK ROAD

Fair

Over: NORTH BR NESHAMINY CREEK

NEW BRITAIN TWP. 21J13, Bucks, PA

Built 1985 Load: 70.8 t ADT: 500

US 219

Fair

Over: SANDY RUN

0.7 MILE SOUTH OF TR 869, Cambria, PA

Built 1965 Load: 70.8 t ADT: 16,501

SR 27 NORTH STREET

Fair

Over: OVER MILL RUN

CITY OF MEADVILLE, Crawford, PA

Built 1896 Load: 70.8 t ADT: 8,153

INTERSTATE 95

Fair

Over: DARBY CREEK

TINICUM 44D01, Delaware, PA

Built 1975 Load: 70.8 t ADT: 144,952

PA 456; lit.cove r

Fair

Over: LITTLE COVE CREEK

5 MI SW OF FOLTZ, Franklin, PA

Built 1937 Load: 70.8 t ADT: 465

SEVENTH STREET

Fair

Over: MARSH RUN

BTW WILLOW & VIRGINIA AVE, Indiana, PA

Built 1961 Load: 70.8 t ADT: 1,900

PA TPK (I-76)

Fair

Over: LR 36129 SR 1055

DENVER BORO, Lancaster, PA

Built 1949 Load: 70.8 t ADT: 24,971

SR 3009

Fair

Over: OVER MAUSES RUN

2 MI N DANVILLE BORO, Montour, PA

Built 1987 Load: 70.8 t ADT: 1,144

T858 BRADDOCKS RN

Fair

Over: BRADDOCKS RUN

2.5 MI.W.OF ADDISON, Somerset, PA

Built 1959 Load: 70.8 t ADT: 50

SR 2012

Fair

Over: TINKER BROOK

CLIFFORD TWP 125E SR2027, Susquehanna, PA

Built 1941 Load: 70.8 t ADT: 83

T-540 Day Hill Rd

Fair

Over: Crafts Creek

250 SOUTH OF SR 3035, Washington, PA

Built 1936 Load: 70.8 t ADT: 40

SR 0030

Fair

Over: NINE MILE RUN

UNITY TOWNSHIP, Westmoreland, PA

Built 1931 Load: 70.8 t ADT: 22,679

Showing 11,951-12,000 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.