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

TRAFFIC ROUTE 202

Fair

Over: GREEN HILL ROAD

NEAR WEST CHESTER 32D03, Chester, PA

Built 1968 Load: 49.0 t ADT: 23,905

LEWISVILLE-CHESTER

Fair

Over: HODGSON RUN

NEAR LEWISVILLE 53B09, Chester, PA

Built 1985 Load: 49.0 t ADT: 1,189

WAWASET-UNIONVILLE

Fair

Over: WEST BR BRANDYWINE CREEK

SEEDS BRIDGE 40C3, Chester, PA

Built 1987 Load: 49.0 t ADT: 2,478

OLD LANCASTER ROAD

Fair

Over: AMTRAK (PHILA TO PITT)

BERWYN 24E8, Chester, PA

Built 1957 Load: 49.0 t ADT: 6,264

LEWIS MILL ROAD

Fair

Over: EAST BR BRANDYWINE CREEK

NEAR LEWIS MILLS 10H10, Chester, PA

Built 1903 Load: 49.0 t ADT: 387

T-382

Fair

Over: PA TPK (I-76)

NEAR ELVERSON, Chester, PA

Built 1950 Load: 49.0 t ADT: 200

RAMPS C AND D

Fair

Over: BR OF W BR BRANDYWINE CK

DOWNINGTOWN 28J2, Chester, PA

Built 1963 Load: 49.0 t ADT: 7,199

SR0028

Fair

Over: TOWN RUN

HAWTHORN NO.1, Clarion, PA

Built 1993 Load: 49.0 t ADT: 5,276

SR0036

Fair

Over: CLARION RIVER

COOKSBURG, Clarion, PA

Built 1959 Load: 49.0 t ADT: 1,205

SR0080 EB

Fair

Over: SR1009 & BRUSH RUN

LONESOME EB, Clarion, PA

Built 1965 Load: 49.0 t ADT: 11,345

T-430 WAS T-422

Fair

Over: GREEN RUN

500 FT NW OF T427, Clearfield, PA

Built 1920 Load: 49.0 t ADT: 10

SR 42

Fair

Over: TRIB TO ROARING CREEK

4 MILES S OF CATAWISA, Columbia, PA

Built 1959 Load: 49.0 t ADT: 3,451

SR 19 PERRY HWY

Fair

Over: OVER NS RAILROAD

UNION TOWNSHIP, Crawford, PA

Built 1986 Load: 49.0 t ADT: 2,723

SR 27 WASHINGTON

Fair

Over: OVER LITTLE SUGAR CREEK

EAST MEAD TOWNSHIP, Crawford, PA

Built 1985 Load: 49.0 t ADT: 2,559

SR 1001 PARK AVE.

Fair

Over: OVER MILL RUN

CITY OF MEADVILLE, Crawford, PA

Built 1906 Load: 49.0 t ADT: 8,201

SR 2036 HCKRY.CRNR

Fair

Over: OVER WOODCOCK CREEK

RANDOLPH TOWNSHIP, Crawford, PA

Built 1904 Load: 49.0 t ADT: 63

PA 581 E.B.

Fair

Over: CONODOGUINET CREEK

1.1 MILES NORTH OF US11, Cumberland, PA

Built 1995 Load: 49.0 t ADT: 30,378

BERNHEISEL ROAD

Fair

Over: CONODOGUINET CREEK

6.4 NE CARLISLE MIDDLESEX, Cumberland, PA

Built 1959 Load: 49.0 t ADT: 2,000

I-81 NB; SR 0081

Fair

Over: TWP RD 465

2 MI. E. LINGLESTOWN, Dauphin, PA

Built 1969 Load: 49.0 t ADT: 28,014

I-83 SB; SR 0083

Fair

Over: I-83; US 322; SR 0083

EISENHOWER INTERCHANGE, Dauphin, PA

Built 1970 Load: 49.0 t ADT: 24,637

SYCAMORE DRIVE

Fair

Over: ASYLUM RUN

DGS ANNEX, Dauphin, PA

Built 1920 Load: 49.0 t ADT: 50

MADISON STREET(NB)

Fair

Over: CSX & INTERSTATE 95

.7MI.S. RIDLEY CK. 43G03, Delaware, PA

Built 1968 Load: 49.0 t ADT: 2,351

MID-COUNTY EXWY.NB

Fair

Over: ITHAN CREEK

RADNOR TOWNSHIP 25H03, Delaware, PA

Built 1967 Load: 49.0 t ADT: 46,663

MID-COUNTY EXWY.SB

Fair

Over: ITHAN CREEK

RADNOR TOWNSHIP 25H03, Delaware, PA

Built 1967 Load: 49.0 t ADT: 43,234

BRIDGEWATER ROAD

Fair

Over: CHESTER CREEK

ASTON TWP.LINE 43B02, Delaware, PA

Built 1987 Load: 49.0 t ADT: 9,638

CHEYNEY ROAD

Fair

Over: WEST BRANCH CHESTER CRK.

CONCORD TOWNSHIP 32F10, Delaware, PA

Built 1973 Load: 49.0 t ADT: 3,553

GLENOLDEN AVENUE

Fair

Over: MUCKINIPATTIS CREEK

.25MI.SE.OF US-13 28-F2, Delaware, PA

Built 1943 Load: 49.0 t ADT: 4,383

UPLAND STREET

Fair

Over: INTERSTATE 95;CSX R.R.

400FEET N.PA320 3807-C3, Delaware, PA

Built 1963 Load: 49.0 t ADT: 1,323

SR 1009

Fair

Over: EAST BR CLARION RIVER

JOHNSONBURG BORO, Elk, PA

Built 1959 Load: 49.0 t ADT: 3,245

SR 79 NB

Fair

Over: OVER T-515 VAN CAMP ROAD

MCKEAN TOWNSHIP, Erie, PA

Built 1969 Load: 49.0 t ADT: 9,091

SR 1051

Fair

Over: RANKIN RUN

NORTH UNION TOWNSHIP, Fayette, PA

Built 1952 Load: 49.0 t ADT: 1,804

CONNELLSVILLE ST

Fair

Over: DUNBAR CREEK

CONNELLSVILLE ST.IN BORO., Fayette, PA

Built 1991 Load: 49.0 t ADT: 2,407

SR 1003 BLUE JAY R

Fair

Over: OVER BLUE JAY CREEK

HOWE TOWNSHIP, Forest, PA

Built 1938 Load: 49.0 t ADT: 556

T-356

Fair

Over: OVER SALMON CREEK

JENKS TOWNSHIP, Forest, PA

Built 1920 Load: 49.0 t ADT: 55

T-462 PECKMAN DR

Fair

Over: WILSON RUN

0.7 MI NE OF COBBLE RD, Franklin, PA

Built 1985 Load: 49.0 t ADT: 150

STONEHILL ROAD 511

Fair

Over: PURSLEY CREEK

AT THE SR 3013 INTERSECT, Greene, PA

Built 1994 Load: 49.0 t ADT: 50

PA 305

Fair

Over: FRNKSTWN.BR.JUNIATA RIV.

0.4 MILE EAST OF TR 22, Huntingdon, PA

Built 1994 Load: 49.0 t ADT: 2,433

SR 0022 EB&WB

Fair

Over: SR 0217 & NS RR

FLENNIKEN NO.1, Indiana, PA

Built 1951 Load: 49.0 t ADT: 22,899

SR3008

Fair

Over: ROSE RUN

ROSE RUN, Jefferson, PA

Built 1964 Load: 49.0 t ADT: 402

T-450 ODONNELL RD

Fair

Over: SANDY LICK CREEK

2.0 MILES S OF US RTE 322, Jefferson, PA

Built 1992 Load: 49.0 t ADT: 50

S.STATE ST

Fair

Over: PINE RUN

0.1 MILE SOUTH OF SR 3004, Jefferson, PA

Built 1989 Load: 49.0 t ADT: 50

SR 75-PA 75

Fair

Over: HUNTERS CREEK

PORT ROYAL, Juniata, PA

Built 1949 Load: 49.0 t ADT: 3,604

SR 3017

Fair

Over: LACKAWANNA RIVER

OLD FORGE B JCT SR 3019, Lackawanna, PA

Built 1959 Load: 49.0 t ADT: 4,912

SR 3020 LINDEN ST

Fair

Over: NORFOLK SOUTHERN RR

SCRANTON 813 E SR 3013, Lackawanna, PA

Built 1907 Load: 49.0 t ADT: 6,428

Martindale Rd

Fair

Over: Muddy Creek

1.5 mi.W of Martindale, Lancaster, PA

Built 1952 Load: 49.0 t ADT: 4,563

KOSER ROAD

Fair

Over: BACHMAN RUN

1.3 MI NE OF SR 4011, Lancaster, PA

Built 1992 Load: 49.0 t ADT: 520

THOMPSON ROAD

Fair

Over: NORTH FORK LITTLE BEAVER

1040N.OF INTER.W/TR 351, Lawrence, PA

Built 1962 Load: 49.0 t ADT: 54

SR 2014 FURNACE RD

Fair

Over: MILL CREEK

SHERIDAN, Lebanon, PA

Built 1928 Load: 49.0 t ADT: 420

NOBLE STREET

Fair

Over: HAZEL DYKE

NOBLE ST HAZELDYKE, Lebanon, PA

Built 1987 Load: 49.0 t ADT: 200

I-78(LR 1045)

Fair

Over: SR 2007 (LR 39016)

OVER OXFORD DRIVE, Lehigh, PA

Built 1989 Load: 49.0 t ADT: 79,207

Showing 10,401-10,450 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.