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 2068 Hess Farm

Fair

Over: LAKE REDMAN

1 MILE EAST OF JACOBUS, York, PA

Built 1967 Load: 49.0 t ADT: 2,506

SR 8013 RAMP M

Fair

Over: MILL CREEK

PA462 & I83 INTER, York, PA

Built 1959 Load: 49.0 t ADT: 8,669

GIRARD AVENUE

Fair

Over: AMTRAK

GIRARD;BELMONT AV 3589F05, Philadelphia, PA

Built 1908 Load: 49.0 t ADT: 19,023

WISSAHICKON AVENUE

Fair

Over: CSX TRENTON LINE

.1MI.NW.HUNTING PK.3480D9, Philadelphia, PA

Built 1957 Load: 49.0 t ADT: 16,655

Fox Street

Fair

Over: Roosevelt Blvd Ext (US1)

East of Henry Ave 3480-B8, Philadelphia, PA

Built 1960 Load: 49.0 t ADT: 10,000

Scotts Lane

Fair

Over: Roosevelt Bvd Ext (US-1)

SCOTTS LANE 28C01, Philadelphia, PA

Built 1960 Load: 49.0 t ADT: 1,300

RAMP F & J(NB. ON)

Fair

Over: PENROSE AVE. & RAMP

N.PHILA.AIRPORT 3699B09, Philadelphia, PA

Built 1984 Load: 49.0 t ADT: 22,222

PA 36

Fair

Over: YELLOW CREEK

0.25 MI.E.OF LOYSBURG, Bedford, PA

Built 1997 Load: 49.0 t ADT: 4,027

SR 0079

Fair

Over: SR 1025

NORTH STRABANE TOWNSHIP, Washington, PA

Built 1997 Load: 49.0 t ADT: 20,874

US 219 SBL

Fair

Over: PETENB RD SR 2047 & CSX

1.5 MI. N OF MEYERSDALE, Somerset, PA

Built 1998 Load: 49.0 t ADT: 1,896

SR 4014

Fair

Over: BALLS CREEK

SCOTT TWP 2.5 M E SR 4037, Wayne, PA

Built 1999 Load: 49.0 t ADT: 148

PA 31

Fair

Over: LAUREL HILL CREEK

BAKERSVILLE, Somerset, PA

Built 2000 Load: 49.0 t ADT: 4,094

DEVON PARK DRIVE

Fair

Over: RAMPS L AND Q

SW WARNER RD 34A2/3366F8, Montgomery, PA

Built 2001 Load: 49.0 t ADT: 3,245

SR 0079

Fair

Over: SR 0019

AMWELL TOWNSHIP, Washington, PA

Built 2000 Load: 49.0 t ADT: 12,743

RAMP NB

Fair

Over: RAMPS G AND LL

AIRPORT INTERCHAGE3699A09, Philadelphia, PA

Built 2002 Load: 49.0 t ADT: 5,003

SCHOENERSVILLE RD.

Fair

Over: MONOCACY CREEK

AT PAINT MILL, Lehigh, PA

Built 2005 Load: 49.0 t ADT: 16,191

T-527 SNARE DRIVE

Fair

Over: SINKING RUN

2.0 MI NE of CULP, Blair, PA

Built 2008 Load: 49.0 t ADT: 100

PA 653

Fair

Over: BUFFALO CREEK

GARRETT BOROUGH, Somerset, PA

Built 2008 Load: 49.0 t ADT: 4,267

MAIN ENTRANCE ROAD

Fair

Over: CONOCOCHEAGUE CREEK

CALEDONIA STATE PARK, Franklin, PA

Built 2008 Load: 49.0 t ADT: 375

CLEAVER SCHOOL RD

Fair

Over: IRONSTONE CREEK

NORTH OF BOYERTOWN, Berks, PA

Built 1980 Load: 49.0 t ADT: 101

Hemlock Road

Fair

Over: Cush Cushion Creek

1000 N of T-926, Indiana, PA

Built 2000 Load: 49.0 t ADT: 200

Lyndhurst Circuit

Fair

Over: Unnamed Tributary

340 N of Wexford RdSR910, Allegheny, PA

Built 1988 Load: 49.0 t ADT: 50

Ferris Rd.

Fair

Over: Unnamed Tributary

0.1 mile from Means Rd, Lawrence, PA

Built 2010 Load: 49.0 t ADT: 100

N Five Points Road

Fair

Over: E Br of Chester Creek

S of Ward Ave. 3583-F2, Chester, PA

Built 1990 Load: 49.0 t ADT: 800

WEST FIRST AVENUE

Fair

Over: DONNY BROOK

N OF CLAHOR AVE 3141-E10, Montgomery, PA

Built 1996 Load: 49.0 t ADT: 500

FOX CHAPEL RD

Fair

Over: SYCAMORE RUN

SQ02 SYCAMORE RUN NO. 2, Allegheny, PA

Built 1926 Load: 49.2 t ADT: 15,217

T-484 L BEAVER RD

Fair

Over: LITTLE BEAVER CREEK

AT SR 2015 INTERSECT, Lancaster, PA

Built 1974 Load: 49.6 t ADT: 120

BROUGH ROAD

Fair

Over: LATIMORE CREEK

2.6 N YRKSPRG/LATIMORE CR, Adams, PA

Built 1975 Load: 49.9 t ADT: 50

SR 0051 SB

Fair

Over: SR 0376 EB-WB

400S.W.OF FT.PITT TUNNEL, Allegheny, PA

Built 1953 Load: 49.9 t ADT: 20,453

RAYMOND SHAFER HW

Fair

Over: RAMP B TO 79 SB

I-79 NB OVER RAMP B, Allegheny, PA

Built 1973 Load: 49.9 t ADT: 24,205

5TH AVE

Fair

Over: CROOKED RUN

150 FT N OF SR2037, Allegheny, PA

Built 1937 Load: 49.9 t ADT: 18,145

ALLEGHENY RIVER BL

Fair

Over: PLUM CREEK

500 SOUTH OF SR 2080, Allegheny, PA

Built 1937 Load: 49.9 t ADT: 12,460

FORSYTHE RD

Fair

Over: WHEELING & LE RR

2300SOUTH OF SR 3058, Allegheny, PA

Built 1992 Load: 49.9 t ADT: 12,212

LR02176 SR 2054

Fair

Over: PA TPK (I-76)

NEAR PITTSBURGH INTERCHG, Allegheny, PA

Built 1952 Load: 49.9 t ADT: 12,492

ENLOW ROAD

Fair

Over: MONTOUR RUN NORTH BRANCH

MX01 0.2 Mi N of McClaren, Allegheny, PA

Built 1934 Load: 49.9 t ADT: 520

CRYSTAL DR

Fair

Over: BIG PUCKETA CREEK

PO06 PUCKETA CREEK NO 6, Allegheny, PA

Built 1916 Load: 49.9 t ADT: 440

SR3128

Fair

Over: TRIB TO ALLEGHENY RIVER

CADOGAN NO.2, Armstrong, PA

Built 1959 Load: 49.9 t ADT: 621

SR 73 LAKE SHORE D

Fair

Over: NORFOLK SOUTHERN

MAIDENCREEK, Berks, PA

Built 1935 Load: 49.9 t ADT: 8,878

SR 12(LR 784)

Fair

Over: SR 61(LR 160)

PA61 INTERCHANGE, Berks, PA

Built 1957 Load: 49.9 t ADT: 46,325

SR 2020 (LR 916)

Fair

Over: MONOCACY CREEK

LIMEKILN-OLEY TPK.RD., Berks, PA

Built 1963 Load: 49.9 t ADT: 2,098

LR06089 SR 0010

Fair

Over: PA TPK (I-76)

NEAR MORGANTOWN INTERCHG, Berks, PA

Built 1950 Load: 49.9 t ADT: 8,701

DRIES ROAD

Fair

Over: WILLOW CREEK

NORTH OF US 222, Berks, PA

Built 1917 Load: 49.9 t ADT: 472

I-99 / US 220 NBL

Fair

Over: T349

1 MI.S.OF EAST FREEDOM, Blair, PA

Built 1988 Load: 49.9 t ADT: 5,394

SR 1022

Fair

Over: BULLARDS CREEK

.5 MI N. OF ROME BORO, Bradford, PA

Built 1958 Load: 49.9 t ADT: 1,370

SR 2002

Fair

Over: SUGAR RUN CREEK

.5 MI.WEST OF SUGAR RUN, Bradford, PA

Built 1965 Load: 49.9 t ADT: 424

SR 3029

Fair

Over: GULF CREEK

GRANVILLE CENTER, Bradford, PA

Built 1967 Load: 49.9 t ADT: 72

SR0058

Fair

Over: FOWLER RUN

FOWLER RUN NO.2, Butler, PA

Built 1993 Load: 49.9 t ADT: 333

SR3040 (T-751)

Fair

Over: SR0079 NB&SB

EVANS RD, Butler, PA

Built 1962 Load: 49.9 t ADT: 1,013

SR 3044

Fair

Over: STONYCREEK RIVER

JOHNSTOWN WASHINGTON ST., Cambria, PA

Built 1930 Load: 49.9 t ADT: 3,957

CONEMAUGH AVENUE

Fair

Over: TROUT RUN

PORTAGE CONEMAUGH AVENUE, Cambria, PA

Built 1995 Load: 49.9 t ADT: 256

Showing 10,501-10,550 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.