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 2016

Fair

Over: SHAFFERS CREEK

2.0 MILE EAST OF SR 2033, Bedford, PA

Built 1955 Load: 29.0 t ADT: 402

SR 2026

Fair

Over: BRUSH CREEK

1.5 MI.W.JUNIATA CROSSING, Bedford, PA

Built 1961 Load: 29.0 t ADT: 160

SR 4007 (LR 05097)

Fair

Over: PA TPK (I-76)

NEAR MANNS CHOICE, Bedford, PA

Built 1939 Load: 29.0 t ADT: 209

SR 61(LR 160)

Fair

Over: LAUREL RUN

2 MI N OF READING, Berks, PA

Built 1939 Load: 29.0 t ADT: 18,752

PA 183 (LR 06016)

Fair

Over: LITTLE NORTHKILL CREEK

1.2 MI S OF I-78, Berks, PA

Built 1932 Load: 29.0 t ADT: 10,551

SR 422WB(LR 1041)

Fair

Over: SR 2022 EB(LR 146 PAR.)

DOUGLASSVILLE, Berks, PA

Built 1967 Load: 29.0 t ADT: 16,542

SR 422(LR 1041)

Fair

Over: NORFOLK SOUTHERN RR

1 MI.W.OF MONTGOMERY LINE, Berks, PA

Built 1967 Load: 29.0 t ADT: 32,834

PA 562(LR 06110)

Fair

Over: SPRING CREEK

2 MI.E.OF JACKSONWALD, Berks, PA

Built 1926 Load: 29.0 t ADT: 4,169

SR 662(LR 06124)

Fair

Over: WILLOW CREEK

FRANKLIN BRIDGE, Berks, PA

Built 1923 Load: 29.0 t ADT: 4,918

SR 662 (LR 06124)

Fair

Over: PIGEON CREEK

1 MI.E.OF SHOEMAKERSVILLE, Berks, PA

Built 1938 Load: 29.0 t ADT: 4,121

SR 1022(LR 06140)

Fair

Over: TRIB.TO WILLOW CREEK

.5 MI.NE OF FLEETWOOD, Berks, PA

Built 1934 Load: 29.0 t ADT: 2,053

SR 12 (LR 784 WB)

Fair

Over: T-413(SPRING VALLEY RD)

NORTH OF PRICETOWN ROAD, Berks, PA

Built 1978 Load: 29.0 t ADT: 9,758

SR 2059 (LR 06102)

Fair

Over: MANATAWNY CREEK

DOUGLASS DR.@PINEFORGE RD, Berks, PA

Built 1939 Load: 29.0 t ADT: 1,325

IRONSTONE DRIVE

Fair

Over: IRONSTONE CREEK

GABLESVILLE BRIDGE, Berks, PA

Built 1909 Load: 29.0 t ADT: 100

OLD RTE. 22

Fair

Over: MAIDEN CREEK

OLD 22 BRIDGE, Berks, PA

Built 1950 Load: 29.0 t ADT: 3,933

CRISSCROSS ROAD

Fair

Over: WILLOW CREEK

WALNUTTOWN, Berks, PA

Built 1981 Load: 29.0 t ADT: 350

T378 WEST LOOP RD

Fair

Over: OLD TOWN RUN

4 MI.SE.OF HOLLIDAYSBURG, Blair, PA

Built 2001 Load: 29.0 t ADT: 552

T-365 Weitzel Hill

Fair

Over: PLUM CREEK

1 MI.N.OF ROARING SPRING, Blair, PA

Built 1989 Load: 29.0 t ADT: 77

T-508 Babe Road

Fair

Over: LITTLE JUNIATA RIVER

4 MI.SE.OF TYRONE, Blair, PA

Built 1937 Load: 29.0 t ADT: 11

SR 0187

Fair

Over: PANTHERLICK CREEK

VILLAGE OF HOLLENBACK, Bradford, PA

Built 1919 Load: 29.0 t ADT: 735

SR 414

Fair

Over: GULF BROOK

VILLAGE OF LEROY, Bradford, PA

Built 1926 Load: 29.0 t ADT: 1,723

SR 3029

Fair

Over: MUD CREEK

VILLAGE OF EAST TROY, Bradford, PA

Built 1941 Load: 29.0 t ADT: 72

T-608 (BR # 1)

Fair

Over: JOHNSONS CREEK

1.8 MI. SE OF ROME BORO, Bradford, PA

Built 1984 Load: 29.0 t ADT: 200

T-851 (CO.BR#50)

Fair

Over: TRIB. TO SOUTH CREEK

1.5 MI. SW OF GILLETT, Bradford, PA

Built 1961 Load: 29.0 t ADT: 222

INTERSTATE 295 EB

Fair

Over: MILL CREEK

1MI.NORTH PENNDEL 37E13, Bucks, PA

Built 1972 Load: 29.0 t ADT: 23,877

STREET ROAD

Fair

Over: LITTLE NESHAMINY CREEK

.6MILES TO LR-151 34A02, Bucks, PA

Built 1960 Load: 29.0 t ADT: 27,969

QUAKERTOWN ROAD

Fair

Over: COOKS CREEK

300 FT.TO LR-09086 08E04, Bucks, PA

Built 1924 Load: 29.0 t ADT: 2,094

DUBLIN PIKE

Fair

Over: EAST BR.PERKIOMEN CREEK

25TO LR 656 SPUR 15D09, Bucks, PA

Built 1930 Load: 29.0 t ADT: 15,375

BROAD STREET

Fair

Over: BEAVER RUN

.4MI.SOUTH PA 212 14B01, Bucks, PA

Built 1920 Load: 29.0 t ADT: 10,965

DOYLESTWN BYPAS NB

Fair

Over: SAW MILL ROAD(T401)

.4MI.S.LR 156 23A07, Bucks, PA

Built 1973 Load: 29.0 t ADT: 6,427

FERRY ROAD

Fair

Over: EASTON ROAD

DANBORO 22K05, Bucks, PA

Built 1973 Load: 29.0 t ADT: 8,603

NEW FALLS ROAD

Fair

Over: QUEEN ANNE CREEK

1MI.TO HULMEVILLE 42J03, Bucks, PA

Built 1960 Load: 29.0 t ADT: 14,854

TAYLORSVILLE ROAD

Fair

Over: HOUGHS CREEK / 3039-B6

WASHINGTON XING. 32K04, Bucks, PA

Built 1941 Load: 29.0 t ADT: 8,053

SLIFER VALLEY ROAD

Fair

Over: COOKS CREEK

1.3MI.W.RTE-412 02K09, Bucks, PA

Built 1953 Load: 29.0 t ADT: 655

PA TPK (I-276)

Fair

Over: PA TPK RAMPS

DELAWARE VALLEY INTERCHG, Bucks, PA

Built 1954 Load: 29.0 t ADT: 38,184

US 202

Fair

Over: DEL RIV PA & D&R CANALS

1.1MI.N NEW HOPE 25H03, Bucks, PA

Built 1971 Load: 29.0 t ADT: 10,700

SR0068

Fair

Over: TRIB TO BUFFALO CREEK

SW OF CHICORA, Butler, PA

Built 1957 Load: 29.0 t ADT: 4,877

SR0422 EB

Fair

Over: SR3007 & LIT CONNOQ CR

MERIDIAN ROAD EB, Butler, PA

Built 1970 Load: 29.0 t ADT: 8,628

SR4007

Fair

Over: BLACK RUN

SOUTH OF JACKSVILLE, Butler, PA

Built 1964 Load: 29.0 t ADT: 1,247

NORTH SIXTH AVENUE

Fair

Over: SULLIVAN RUN

BTWN PINE & W PENN STS, Butler, PA

Built 1934 Load: 29.0 t ADT: 300

PA 271

Fair

Over: ELK CREEK

1.4 MILE NORTH OF TR 422, Cambria, PA

Built 1963 Load: 29.0 t ADT: 1,153

SR 2015

Fair

Over: NORFOLK BORO.STR CONE.R.

LILLY BOROUGH, Cambria, PA

Built 1983 Load: 29.0 t ADT: 1,455

DELLWOOD STREET

Fair

Over: NORFOLK S RR & PLUM AVE

DELLWOOD ST JOHNSTOWN, Cambria, PA

Built 1984 Load: 29.0 t ADT: 205

SR 2002(APPL.1461)

Fair

Over: NORFOLK/SOUTHERN RR

PALMERTON-DELAWARE AVE., Carbon, PA

Built 1962 Load: 29.0 t ADT: 17,902

SR 2009 (LR 13038)

Fair

Over: AQUASHICOLA CREEK

.5 MI. S. OF LITTLE GAP, Carbon, PA

Built 1930 Load: 29.0 t ADT: 3,780

SR 2010 (LR 164)

Fair

Over: LEHIGH RIVER & LEHIGH DR

LEHIGHTON-WEISPORT BOROS, Carbon, PA

Built 1971 Load: 29.0 t ADT: 8,893

SR 2019(LR 163 RP)

Fair

Over: PA248 (LR 163)

BOWMANSTOWN(BANK ST.), Carbon, PA

Built 1962 Load: 29.0 t ADT: 4,011

T-395 SPRNG HSE RD

Fair

Over: MAHONING CREEK

0.2 M.NORTH OF TR 443, Carbon, PA

Built 1989 Load: 29.0 t ADT: 100

SR 26-PA 26

Fair

Over: SR 322-US 322

LEMONT, Centre, PA

Built 1989 Load: 29.0 t ADT: 16,060

SR 3040

Fair

Over: TRIB. BALD EAGLE CREEK

JULIAN, Centre, PA

Built 1925 Load: 29.0 t ADT: 2,220

Showing 2,551-2,600 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.