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

CROSSTOWN BL

Fair

Over: FIFTH AVE

I579 NB.OVER 5TH AVENUE, Allegheny, PA

Built 1962 Load: 68.0 t ADT: 31,778

PA TPK (I-76)

Fair

Over: T-746

NEAR PENN HILLS, Allegheny, PA

Built 1952 Load: 68.0 t ADT: 38,689

OLD-BUTLER-PLNK RD

Fair

Over: PINE CREEK

PI15 PINE CREEK NO. 15, Allegheny, PA

Built 1915 Load: 68.0 t ADT: 4,660

SR 3007

Fair

Over: LITTLE BEECH FLATS CREEK

.25 MI N. 0F BEECH FLATS, Bradford, PA

Built 1900 Load: 68.0 t ADT: 328

T-677 FIR ROAD

Fair

Over: HAYS RUN

300 FT S OF SR 0101, Butler, PA

Built 1920 Load: 68.0 t ADT: 100

T-365 TROUT ROAD

Fair

Over: SPRING CREEK

60 FT SE OF T-376, Centre, PA

Built 1987 Load: 68.0 t ADT: 375

SR0066

Fair

Over: LITTLE PINEY CREEK

MCGREGOR ROAD, Clarion, PA

Built 1998 Load: 68.0 t ADT: 4,285

SR 453-PA 453

Fair

Over: W BR SUSQUEHANNA RIVER

CURWENSVILLE, Clearfield, PA

Built 1949 Load: 68.0 t ADT: 1,939

SR 27 STATE ST.

Fair

Over: OVER MILL RUN

CITY OF MEADVILLE, Crawford, PA

Built 1981 Load: 68.0 t ADT: 7,609

I-81 SB; SR 0081

Fair

Over: NORFOLK SOUTHERN

0.25 MI.S. OF SR 2002, Cumberland, PA

Built 1963 Load: 68.0 t ADT: 26,923

US 11 & 15 SR 0011

Fair

Over: US 22 & 322 SR 0022

2 MI N OF CLARKS FERRY, Dauphin, PA

Built 1959 Load: 68.0 t ADT: 14,715

PA 441; SR 0441

Fair

Over: SWATARA CREEK

ROYALTON BORO, Dauphin, PA

Built 1959 Load: 68.0 t ADT: 3,793

SMEDLEY PARK ENT.

Fair

Over: CRUM CREEK

.3 Mi N of Balt Pk 20-D7, Delaware, PA

Built 1991 Load: 68.0 t ADT: 80

SR 0119

Fair

Over: GEORGES CREEK

SPRINGHILL TOWNSHIP, Fayette, PA

Built 1987 Load: 68.0 t ADT: 2,738

SR0119 NB&SB

Fair

Over: STONEY RUN

STONEY RUN NO.1, Indiana, PA

Built 1960 Load: 68.0 t ADT: 15,630

SR1011

Fair

Over: MILL CREEK

MILL CREEK NO.1, Jefferson, PA

Built 1936 Load: 68.0 t ADT: 301

SR 0081 I-81

Fair

Over: BOULEVARD AVENUE

SCRANTON CTY OVER BLD AVE, Lackawanna, PA

Built 1958 Load: 68.0 t ADT: 49,634

SR 4009 (LR 39057)

Fair

Over: JORDAN CREEK

MILL CK.&GAME PRESERVE RD, Lehigh, PA

Built 1876 Load: 68.0 t ADT: 667

SR 0502 TR 502

Fair

Over: TROUT CREEK

PITTSTON TWP 2M E SR 3031, Luzerne, PA

Built 1987 Load: 68.0 t ADT: 2,326

SR 2026

Fair

Over: GARDNERS CREEK

LAFLIN BO .1 M E SR 2015, Luzerne, PA

Built 1946 Load: 68.0 t ADT: 2,285

US 22 (LR 773)

Fair

Over: SPRING BROOK

1 MI.E.OF 25TH ST EXIT, Northampton, PA

Built 1954 Load: 68.0 t ADT: 35,152

SR 4018

Fair

Over: UNT to Susq. River

1 MILE SOUTH OF SUNBURY, Northumberland, PA

Built 1922 Load: 68.0 t ADT: 2,891

BROADWAY GAS WATER

Fair

Over: SCHUYLKILL RIVER

BROADWAY STREET IN SCHUL., Schuylkill, PA

Built 1929 Load: 68.0 t ADT: 400

SR 349 Long Run Rd

Fair

Over: TRIBUTARY TO MILL CREEK

VILLAGE OF SABINSVILLE, Tioga, PA

Built 1932 Load: 68.0 t ADT: 966

SR 192

Fair

Over: OVER RAPID RUN

R B WINTER STATE PARK, Union, PA

Built 1939 Load: 68.0 t ADT: 870

SR 0917

Fair

Over: NORTH BRANCH PIGEON CK.

BENTLEYVILLE BOROUGH, Washington, PA

Built 1986 Load: 68.0 t ADT: 3,817

SR 0030

Fair

Over: LOYALHANNA CREEK

DERRY TOWNSHIP, Westmoreland, PA

Built 1954 Load: 68.0 t ADT: 8,105

SR 2031 windsor rd

Fair

Over: KREUTZ CREEK

2 MI NW OF FREYSVILLE, York, PA

Built 1958 Load: 68.0 t ADT: 7,573

HUNTING PARK AVE

Fair

Over: CONRAIL:RICHMOND BRANCH

GERMANTOWN AVENUE 3480F08, Philadelphia, PA

Built 1905 Load: 68.0 t ADT: 14,991

Morrell Avenue

Fair

Over: Byberry Creek

E of Ashfield Lane 20B03, Philadelphia, PA

Built 1958 Load: 68.0 t ADT: 7,800

Northwestern Ave

Fair

Over: Wissahickon Creek

W of Stenton Ave 06G13, Philadelphia, PA

Built 1888 Load: 68.0 t ADT: 3,400

SR 2031

Fair

Over: PA TURNPIKE;I76;MP 92.31

DONEGAL TWP, Westmoreland, PA

Built 2001 Load: 68.0 t ADT: 198

T-393 OLD FRITZTN

Fair

Over: US 222

OLD FRITZTOWN RD, Berks, PA

Built 2004 Load: 68.0 t ADT: 5,642

SR 0028 NB

Fair

Over: FOX CHAPEL ROAD

AT ASPINWL.MAINT.SHED, Allegheny, PA

Built 1965 Load: 68.9 t ADT: 31,110

NORTH AV

Fair

Over: GIRTYS RUN

445002 AT FRANKLIN ST, Allegheny, PA

Built 1982 Load: 68.9 t ADT: 2,500

SR1003

Fair

Over: MAHONING CREEK

MAHONING, Armstrong, PA

Built 1992 Load: 68.9 t ADT: 450

SCHOOL HOUSE ROAD

Fair

Over: WEST BR. NESHAMINY CREEK

1.3 MI NE SR309 3033-B5, Bucks, PA

Built 1982 Load: 68.9 t ADT: 1,800

SR0422 EB&WB

Fair

Over: B&P RR & BONNIE BROOK

BONNIE BROOK, Butler, PA

Built 1960 Load: 68.9 t ADT: 21,181

SR1019

Fair

Over: N BR OF ROUGH RUN

CLEARFIELD ROAD, Butler, PA

Built 1936 Load: 68.9 t ADT: 640

INDUSTRIAL ROAD

Fair

Over: NESQUEHONING CREEK

700 FT N OF SR 54, Carbon, PA

Built 1993 Load: 68.9 t ADT: 100

SR 3040

Fair

Over: ARDERY RUN

MARTHA FURNACE, Centre, PA

Built 1952 Load: 68.9 t ADT: 2,220

SR1011

Fair

Over: STRATTAN RUN

STRATTAN, Clarion, PA

Built 1954 Load: 68.9 t ADT: 219

SR 0042

Fair

Over: OVER I-80

BUCKHORN INTERCHANGE, Columbia, PA

Built 1965 Load: 68.9 t ADT: 7,048

SR 1019

Fair

Over: TRIB EAST BR BRIAR CRK

2.5 MI NW OF BERWICK, Columbia, PA

Built 1987 Load: 68.9 t ADT: 1,759

SR 1055

Fair

Over: COVE RUN

NORTH UNION TOWNSHIP, Fayette, PA

Built 1970 Load: 68.9 t ADT: 1,362

T381 BLAIRS HILL R

Fair

Over: LITTLE TONOLOWAY CREEK

1.5 MI.E.OF SIPES MILL, Fulton, PA

Built 1937 Load: 68.9 t ADT: 69

SR0286

Fair

Over: TWO LICK CREEK

CLYMER NO.1, Indiana, PA

Built 1953 Load: 68.9 t ADT: 6,235

SR3033 PICKERING

Fair

Over: REDBANK CREEK

PICKERING STREET, Jefferson, PA

Built 1986 Load: 68.9 t ADT: 1,765

PA 283; SR 0300

Fair

Over: CHICKIES CREEK

E HEMPFLD-RAPHO TWP LIN, Lancaster, PA

Built 1949 Load: 68.9 t ADT: 51,789

T-375

Fair

Over: QUENSHUKENY RUN

2.2 MI. NORTH OF LINDEN, Lycoming, PA

Built 1961 Load: 68.9 t ADT: 150

Showing 11,901-11,950 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.