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 0081 I-81 NB

Fair

Over: TR 438 & TUNKHANNOCK CK

SCOTT TWP OVER TR 438, Lackawanna, PA

Built 1961 Load: 48.1 t ADT: 10,464

SR 0084 I-84 EB

Fair

Over: SR 0380 I-380 NB

ROARNG BR TP OVER I-380 N, Lackawanna, PA

Built 1975 Load: 48.1 t ADT: 7,028

PA 72; Lebanon rd

Fair

Over: CHICKIES CREEK

0.5 MI.N. OF ELSTONVILLE, Lancaster, PA

Built 1995 Load: 48.1 t ADT: 11,989

MARTINDALE RD

Fair

Over: QUARRY HAUL RD

2 MI EAST OF US 322, Lancaster, PA

Built 1991 Load: 48.1 t ADT: 4,563

SR 3017;Safe Harbr

Fair

Over: Witmer Run

0.6 mi.N.W. Safe Harbor, Lancaster, PA

Built 1984 Load: 48.1 t ADT: 555

T-888

Fair

Over: PA TPK (I-76)

CAERNARVO TWP, Lancaster, PA

Built 1949 Load: 48.1 t ADT: 200

SAWMILL ROAD

Fair

Over: ENOLA LOW GRADE TRAIL

0.8 MI WEST OF SR 222, Lancaster, PA

Built 1991 Load: 48.1 t ADT: 210

PA TPK (I-376)

Fair

Over: SR 0168

NORTH BEAVER BORO, Lawrence, PA

Built 1992 Load: 48.1 t ADT: 9,871

PA TPK (I-376)

Fair

Over: SR 0168

NORTH BEAVER BORO, Lawrence, PA

Built 1992 Load: 48.1 t ADT: 9,871

CUMBERLAND STREET

Fair

Over: QUITTAPAHILLA CREEK

AT 12TH ST INTERSECT, Lebanon, PA

Built 1983 Load: 48.1 t ADT: 4,000

SR 78(LR 1045)

Fair

Over: NORFOLK SOUTHERN RR

NEAR LEHIGH ST.EXIT, Lehigh, PA

Built 1989 Load: 48.1 t ADT: 70,840

PA 987 (LR 39031)

Fair

Over: US 22(LR 771)

AIRPORT RD.INTERCHANGE, Lehigh, PA

Built 1973 Load: 48.1 t ADT: 20,804

OLD MICKLEY ROAD

Fair

Over: HELFRICH SPRING POND

WHITEHALL TOWNSHIP, Lehigh, PA

Built 1920 Load: 48.1 t ADT: 3,000

SPRINGHOUSE ROAD

Fair

Over: LITTLE CEDAR CREEK

WESTWOOD HEIGHTS, Lehigh, PA

Built 1963 Load: 48.1 t ADT: 3,800

LOVERS LANE

Fair

Over: TROUT CREEK

SE OF SLATEDALE, Lehigh, PA

Built 1921 Load: 48.1 t ADT: 50

AUBURN STREET

Fair

Over: TROUT CREEK

NEAR SOUTH FOURTH STREET, Lehigh, PA

Built 1978 Load: 48.1 t ADT: 1,200

SR 0029 TR 29

Fair

Over: SR 2002 SANS SOUCI HWY

HANOVER TWP OVER SR 2002, Luzerne, PA

Built 1969 Load: 48.1 t ADT: 11,765

SR 3007

Fair

Over: LITTLE WAPWALLOPEN CREEK

DORRANCE TWP 1M S SR 2042, Luzerne, PA

Built 1988 Load: 48.1 t ADT: 465

SR 284

Fair

Over: FLICKS RUN

4 MI W OF BUTTONWOOD, Lycoming, PA

Built 1932 Load: 48.1 t ADT: 112

SR 62 FRANKLIN RD.

Fair

Over: OVER YELLOW CREEK

JACKSON TOWNSHIP, Mercer, PA

Built 1966 Load: 48.1 t ADT: 2,413

BRIDGE 909 T-642

Fair

Over: OVER LITTLE SHENANGO R.

LONG HILL OTTER CREEK TWP, Mercer, PA

Built 1984 Load: 48.1 t ADT: 134

HARRISVILLE ROAD

Fair

Over: OVER WOLF CREEK (LOCAL)

HARRISVILLE RD. WORTH TWP, Mercer, PA

Built 1958 Load: 48.1 t ADT: 201

BRIDGE 3104 E.PINE

Fair

Over: OVER WOLF CREEK

EAST PINE ST GROVE CITY, Mercer, PA

Built 1915 Load: 48.1 t ADT: 3,191

SR 22-US 22

Fair

Over: TWP RD 600

LEWISTOWN, Mifflin, PA

Built 1958 Load: 48.1 t ADT: 14,029

SR 3009

Fair

Over: TOWN RUN

1 MILE NW MCVEYTOWN, Mifflin, PA

Built 1952 Load: 48.1 t ADT: 497

SR 1001(LR 45081)

Fair

Over: BULGERS RUN

CHERRY LANE ROAD, Monroe, PA

Built 1956 Load: 48.1 t ADT: 2,014

SR 2010(MANOR DR.)

Fair

Over: MCMICHAEL CREEK

MANOR DRIVE, Monroe, PA

Built 1960 Load: 48.1 t ADT: 621

SR 2012(LR 164SP.)

Fair

Over: MCMICHAELS CREEK

900 FT.N.OF US 209, Monroe, PA

Built 1928 Load: 48.1 t ADT: 4,629

MCILHANEY RD T-434

Fair

Over: MCMICHAEL CREEK

HIAWATHA LAKE, Monroe, PA

Built 1972 Load: 48.1 t ADT: 384

SKIPPACK PIKE

Fair

Over: ZACHARIAS CREEK

E. OF PA 363 3143-F09, Montgomery, PA

Built 1987 Load: 48.1 t ADT: 10,190

SCHUYLKILL EXPWAY.

Fair

Over: NORTH GULPH ROAD

KING OF PRUSSIA 3367-G07, Montgomery, PA

Built 1985 Load: 48.1 t ADT: 91,270

DEKALB STREET

Fair

Over: SCHUYLKILL RIVER

N-TN B-PT. 3367E03, Montgomery, PA

Built 1993 Load: 48.1 t ADT: 17,486

STENTON AVENUE

Fair

Over: WISSAHICKON CR / 3369-D4

W.WISSAHICKON AVE. 30G11, Montgomery, PA

Built 1914 Load: 48.1 t ADT: 7,909

BORO LINE ROAD

Fair

Over: US 202

BRIDGEPORT 28H11/3367D5, Montgomery, PA

Built 1975 Load: 48.1 t ADT: 597

PA TPK (I-276)

Fair

Over: SR 3027 LR46137

SOUTH OF NORRISTOWN, Montgomery, PA

Built 2008 Load: 48.1 t ADT: 65,138

PA TPK RAMP AB

Fair

Over: PA TPK (I-276)

NORRISTOWN INTERCHANGE, Montgomery, PA

Built 1954 Load: 48.1 t ADT: 43,330

PA TPK (RAMP G)

Fair

Over: SR 3053

PART OF MID-COUNTY INTG, Montgomery, PA

Built 1991 Load: 48.1 t ADT: 90,561

I-80 WB

Fair

Over: CHILLISQUAQUE CREEK

6.7 MI. W DANVILLE EXIT, Montour, PA

Built 1962 Load: 48.1 t ADT: 13,173

I-78EB(LR 1045)

Fair

Over: SR 2006(EASTON RD.)

OVER SR2006(EASTON RD), Northampton, PA

Built 1988 Load: 48.1 t ADT: 29,346

SR 1001 (LR 48071)

Fair

Over: BUSHKILL CREEK

JACOBSBURG ROAD, Northampton, PA

Built 1940 Load: 48.1 t ADT: 3,335

CHESTNUT ST

Fair

Over: CARBON RUN

SHAMOKIN CITY, Northumberland, PA

Built 1993 Load: 48.1 t ADT: 5,000

SR 49-PA 49

Fair

Over: LUDINGTON RUN

1 MI SW ULYSSES, Potter, PA

Built 1928 Load: 48.1 t ADT: 1,236

SR 3003

Fair

Over: TRIB YOUGHIOGHENY RIVER

HUSTON, Somerset, PA

Built 1940 Load: 48.1 t ADT: 235

T-675 MAGGIE ROAD

Fair

Over: N.BR.QUEMAHONING CREEK

2 MI.NW.OF SIPESVILLE, Somerset, PA

Built 1930 Load: 48.1 t ADT: 50

SR 2003

Fair

Over: OVER PAINTER RUN

2.25 MI N OF ELKGROVE, Sullivan, PA

Built 1930 Load: 48.1 t ADT: 105

T-378

Fair

Over: BIRCH CREEK

0.6 MI EAST OF MILDRED, Sullivan, PA

Built 1925 Load: 48.1 t ADT: 50

SR 0011 TR 11

Fair

Over: NRFLK STHRN RR

GRT BEND BO .2 M N TR 171, Susquehanna, PA

Built 1955 Load: 48.1 t ADT: 3,092

T330 (COUNTY LINE)

Fair

Over: TUSCARORA CREEK

1 MI. SW. OF WEST AUBURN, Susquehanna, PA

Built 1976 Load: 48.1 t ADT: 50

SR 0014

Fair

Over: OVER DRY RUN

2.5 MI N OF ROARING BR, Tioga, PA

Built 1931 Load: 48.1 t ADT: 2,383

SR 1001

Fair

Over: LAMBS CREEK

3 MI NW OF MANSFIELD BORO, Tioga, PA

Built 1962 Load: 48.1 t ADT: 348

Showing 10,251-10,300 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.