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

SR4007

Fair

Over: SR0079 NB&SB

WEST PARK RD NO.5, Butler, PA

Built 1965 Load: 42.6 t ADT: 657

PA TPK (I-76)

Fair

Over: SR 3022 LR10002

ROCHESTER ROAD, Butler, PA

Built 1952 Load: 42.6 t ADT: 22,663

T-505 HICKS ROAD

Fair

Over: THORN CREEK

INTERSECTION W SR 3006, Butler, PA

Built 1998 Load: 42.6 t ADT: 500

SR 322-US 322

Fair

Over: GALBRAITH GAP RUN

BOALSBURG, Centre, PA

Built 1925 Load: 42.6 t ADT: 13,783

SR 3029

Fair

Over: MOSHANNON CREEK

PHILIPSBURG, Centre, PA

Built 1986 Load: 42.6 t ADT: 3,549

T-330 DEIBLER ROAD

Fair

Over: SPRUCE CREEK

0.4 MI E. OF BAILEYVILLE, Centre, PA

Built 1935 Load: 42.6 t ADT: 200

US-1 BYPASS (NB)

Fair

Over: BR. E.BR. WHITE CLAY CR.

NEAR WEST GROVE; 45K06, Chester, PA

Built 1967 Load: 42.6 t ADT: 14,587

US-1 BYPASS (SB)

Fair

Over: BR. E.BR. WHITE CLAY CR.

NEAR WEST GROVE; 45K06, Chester, PA

Built 1967 Load: 42.6 t ADT: 14,180

US 1 BY-PASS

Fair

Over: W.BRANCH RED CLAY CREEK

Near Mi Mark 20.4 47C4, Chester, PA

Built 1965 Load: 42.6 t ADT: 29,130

EXTON BYPASS(WB)

Fair

Over: CLOVER MILL ROAD

CLOVER BUS PARK 31D01, Chester, PA

Built 1995 Load: 42.6 t ADT: 29,961

EMBREEVILLE ROAD

Fair

Over: W. BR. BRANDYWINE CREEK

EMBREEVILLE 39C3, Chester, PA

Built 1923 Load: 42.6 t ADT: 2,237

PENN GREEN ROAD

Fair

Over: WHITE CLAY CREEK

NEW GARDEN 54F2, Chester, PA

Built 1974 Load: 42.6 t ADT: 2,522

STREET ROAD

Fair

Over: OCTORARO CREEK

NEAR HOMEVILLE 42K3, Chester, PA

Built 1880 Load: 42.6 t ADT: 384

WAGONTOWN ROAD

Fair

Over: WEST BR BRANDYWINE CREEK

NEAR CEDAR KNOLL 18F11, Chester, PA

Built 1966 Load: 42.6 t ADT: 689

PA TPK (I-76)

Fair

Over: VALLEY CREEK

WEST OF VALLEY FORGE PARK, Chester, PA

Built 1950 Load: 42.6 t ADT: 47,120

DOWLIN FORGE ROAD

Fair

Over: SHAMONA CREEK

NEAR DOWLIN 3471-J3, Chester, PA

Built 1965 Load: 42.6 t ADT: 2,800

SR 477-PA 477

Fair

Over: FISHING CREEK

SALONA, Clinton, PA

Built 1984 Load: 42.6 t ADT: 2,519

SR 0080 EBL

Fair

Over: OVER SR 1001

2.5 MILE E OF LIGHTSTREET, Columbia, PA

Built 1963 Load: 42.6 t ADT: 14,255

SR 0080 WBL

Fair

Over: OVER S.R. 1001

2.5 MILE E OF LIGHTSTREET, Columbia, PA

Built 1963 Load: 42.6 t ADT: 15,068

SR 1025

Fair

Over: OVER HUNTINGTON CREEK

VILLAGE OF JONESTOWN, Columbia, PA

Built 1959 Load: 42.6 t ADT: 985

SR 2001

Fair

Over: OVER ROARING CREEK

VILLAGE OF MILL GROVE, Columbia, PA

Built 1956 Load: 42.6 t ADT: 267

SR 3016 HARMONSBG

Fair

Over: OVER WATSON RUN

VERNON TOWNSHIP, Crawford, PA

Built 1952 Load: 42.6 t ADT: 2,865

SR 3016 HARMONSBG

Fair

Over: OVER SR 79 NB/SB RP SHAF

VERNON TOWNSHIP, Crawford, PA

Built 1969 Load: 42.6 t ADT: 4,708

I-81 NB; SR 0081

Fair

Over: T-432; KUTZ RD

0.5 MI.N. OF EXIT #11, Cumberland, PA

Built 1963 Load: 42.6 t ADT: 20,565

I-81 SB; SR 0081

Fair

Over: T-432; KUTZ RD

0.5 MI.N. EXIT-11; I-8I, Cumberland, PA

Built 1963 Load: 42.6 t ADT: 20,276

I-81 NB; SR 0081

Fair

Over: PETERSBURG RD.; SR 2001

.25 MI.S. OF EXIT 47, Cumberland, PA

Built 1963 Load: 42.6 t ADT: 27,794

I-81; SR 0081

Fair

Over: SIMMONS RUN

0.8 MI.E. OF L.R. 21001, Cumberland, PA

Built 1973 Load: 42.6 t ADT: 69,866

PA-944;Enola Rd.

Fair

Over: Locust Creek

Bloserville, Cumberland, PA

Built 1957 Load: 42.6 t ADT: 923

1002 Creekview Rd

Fair

Over: PA 581; SR 0581

1.2 MI S OF I-81 & PA 581, Cumberland, PA

Built 1995 Load: 42.6 t ADT: 10,322

2035 3rd St

Fair

Over: I-83; SR 0083

LEMOYNE, Cumberland, PA

Built 1982 Load: 42.6 t ADT: 16,836

SR 3006 PINE RD.

Fair

Over: SPRUCE RUN

2.5 MI W OF MNT HOLLYSPR, Cumberland, PA

Built 1956 Load: 42.6 t ADT: 934

4007-Mountain Rd

Fair

Over: THREE SQUARE HOLLOW CK

2 MI N OF HEBERLIG, Cumberland, PA

Built 1937 Load: 42.6 t ADT: 313

PA 25; SR 0025

Fair

Over: LITTLE WICONISCO CREEK

2.5 MI N.E. KILLINGER, Dauphin, PA

Built 1930 Load: 42.6 t ADT: 2,464

PA 39; SR 0039

Fair

Over: SPRING CREEK

HERSHEY, Dauphin, PA

Built 1954 Load: 42.6 t ADT: 20,628

T-499; LOCK WILLOW

Fair

Over: I-81; SR 0081

1.5 MI. S.W. LINGLESTOWN, Dauphin, PA

Built 1969 Load: 42.6 t ADT: 6,025

I-83; SR 0083

Fair

Over: TWP RD 369 & SPRNG CRK.R

0.7 MI N OF EXIT-28;I-83, Dauphin, PA

Built 1953 Load: 42.6 t ADT: 80,822

SR 3010

Fair

Over: SPRING CREEK

SWATARA TWP, Dauphin, PA

Built 1936 Load: 42.6 t ADT: 20,007

MILL RD T-464

Fair

Over: WICONISCO CREEK

2.8 W E-VILLE/WICONISCO, Dauphin, PA

Built 1990 Load: 42.6 t ADT: 150

EDGMONT AVENUE

Fair

Over: INTERSTATE 95;CSX RAILRO

.8MI.S.RIDLEY CK. 43G03, Delaware, PA

Built 1967 Load: 42.6 t ADT: 7,299

BETHEL ROAD

Fair

Over: E BR.NAAMANS CR/ 3805-J7

.5MI.NW BOOTHWYN 42D07, Delaware, PA

Built 1996 Load: 42.6 t ADT: 3,044

STONEY BANK ROAD

Fair

Over: BR OF CHESTER CR/3695-C5

.8M. NORTH TR 1 32J07, Delaware, PA

Built 1990 Load: 42.6 t ADT: 4,126

CHEYNEY ROAD

Fair

Over: CHESTER CREEK

1MI.S.CHEYNEY COL. 32C03, Delaware, PA

Built 1991 Load: 42.6 t ADT: 3,481

CHEYNEY ROAD

Fair

Over: BR.CHESTER CK.(FLD.PLN.)

1MI.S.CHEYNEY COL. 32C03, Delaware, PA

Built 1991 Load: 42.6 t ADT: 3,481

PLEASANT AVENUE

Fair

Over: MARCUS HOOK CREEK

0.3Mi N CHICHESTER 3806B8, Delaware, PA

Built 1966 Load: 42.6 t ADT: 280

CRUM CREEK ROAD

Fair

Over: TROUT RUN

1.4 Mi SW PA-320 3587-A10, Delaware, PA

Built 1970 Load: 42.6 t ADT: 1,800

SR 86 E.B.

Fair

Over: OVER SR 89 BEAVER DAM RD

GREENFIELD TOWNSHIP, Erie, PA

Built 1987 Load: 42.6 t ADT: 3,686

SR 20 W.26TH ST.WB

Fair

Over: OVER 4017 PITTSBURG AVE

CITY OF ERIE, Erie, PA

Built 1972 Load: 42.6 t ADT: 7,733

SR 79 NB

Fair

Over: OVER WEST 21ST STREET

CITY OF ERIE, Erie, PA

Built 1982 Load: 42.6 t ADT: 9,007

SR 89

Fair

Over: OVER FRENCH CREEK BRANCH

CONCORD TOWNSHIP, Erie, PA

Built 1977 Load: 42.6 t ADT: 571

SR 90 WB

Fair

Over: OVER SR 8 WATTSBURG ROAD

MILL CREEK TOWNSHIP, Erie, PA

Built 1959 Load: 42.6 t ADT: 17,319

Showing 8,551-8,600 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.