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

SWAMP ROAD

Fair

Over: DOYLESTOWN BYPASS

NORTH DOYLESTOWN 22K08, Bucks, PA

Built 1973 Load: 29.9 t ADT: 14,740

WASHINGTON CROSSIN

Fair

Over: NEWTOWN CREEK

.5MILES TO LR 152 31K11, Bucks, PA

Built 1967 Load: 29.9 t ADT: 6,071

DOYLESTOWN BY-PASS

Fair

Over: TURK ROAD (TWP-389)

TURK RD;EASTON BYP.29B03, Bucks, PA

Built 1973 Load: 29.9 t ADT: 25,887

RAILROAD AVENUE

Fair

Over: READING CREEK

WEST OF CHALFONT 27G03, Bucks, PA

Built 1915 Load: 29.9 t ADT: 3,631

SOUTH TAMENEND AVE

Fair

Over: COOKS RUN

NEW BRITAIN BORO. 28D01, Bucks, PA

Built 1933 Load: 29.9 t ADT: 2,916

UPPER MOUNTAIN RD

Fair

Over: MILL CREEK

BUCKINGHAM TWP. 24C12, Bucks, PA

Built 1995 Load: 29.9 t ADT: 400

GREEN LANE T-346

Fair

Over: BLACK DITCH CREEK

1.12MI NW OF US13 3263-C9, Bucks, PA

Built 1937 Load: 29.9 t ADT: 1,400

SR0079 NB

Fair

Over: T302 TOLLGATE SCHOOL RD

SOUTH OF ZELIENOPLE, Butler, PA

Built 1962 Load: 29.9 t ADT: 17,810

SR0079 NB

Fair

Over: PA 68 T-323 B&P RR & CRK

HARMONY NB, Butler, PA

Built 1962 Load: 29.9 t ADT: 15,360

SR0079 SB

Fair

Over: PA 68 T-323 B&P RR & CRK

HARMONY SB, Butler, PA

Built 1962 Load: 29.9 t ADT: 12,423

SR3002

Fair

Over: WEST BUTLER CREEK

BUTLER, Butler, PA

Built 1961 Load: 29.9 t ADT: 8,800

SR3015

Fair

Over: TRIB TO BREAKNECK CREEK

MARS BORO, Butler, PA

Built 1940 Load: 29.9 t ADT: 6,948

T-554 EAGLE MILL

Fair

Over: LITTL CONNOQUENESSING CR

1.3 MI NW OF S.R. 68, Butler, PA

Built 1978 Load: 29.9 t ADT: 750

STORY ROAD

Fair

Over: BEAR CREEK

S. INT. SR1004, Butler, PA

Built 1992 Load: 29.9 t ADT: 100

T-316 PALESTINE RD

Fair

Over: SANDY RUN

.7 MI.W.OF ST.MICHAEL, Cambria, PA

Built 1977 Load: 29.9 t ADT: 250

SR 4004

Fair

Over: LITTLE ELK FORK

ELK RIVER, Cameron, PA

Built 1973 Load: 29.9 t ADT: 36

SR 4004

Fair

Over: DRIFTWOOD BRANCH

1 MI E LEWIS RUN, Cameron, PA

Built 1968 Load: 29.9 t ADT: 310

T-356

Fair

Over: UPPER JERRY RUN

3.0 MILES SE OF SR 2001, Cameron, PA

Built 1965 Load: 29.9 t ADT: 20

PA 534(LR 13040)

Fair

Over: I-80(LR 1009)

KIDDER TWP-E.SIDE BORO, Carbon, PA

Built 1965 Load: 29.9 t ADT: 1,047

PA 902(LR 510)

Fair

Over: MAUCH CHUNK CREEK

SUMMIT HILL-LAUREL DR., Carbon, PA

Built 1926 Load: 29.9 t ADT: 4,023

SR 220-US 220

Fair

Over: VAUGHNS RUN

HANNAH, Centre, PA

Built 1925 Load: 29.9 t ADT: 1,505

T-518 RED MILL RD

Fair

Over: SINKING CREEK

500FT FROM INTER OF SR322, Centre, PA

Built 1950 Load: 29.9 t ADT: 80

BANCROFT RD (T454)

Fair

Over: US-1 BY-PASS

.9 MI. N. SR 3046 46K3, Chester, PA

Built 1965 Load: 29.9 t ADT: 1,402

WALNUT ROAD (T422)

Fair

Over: US-1 BY-PASS

NO. KENNETT SQUARE 47G3, Chester, PA

Built 1965 Load: 29.9 t ADT: 2,548

OLD US-1(BALTIMORE

Fair

Over: SPRING RUN

3MI.N.KENNETT SQ. 41A13, Chester, PA

Built 1938 Load: 29.9 t ADT: 25,346

STRASBURG ROAD

Fair

Over: TAYLORS RUN

1MI.COUNTY LINE 31F10, Chester, PA

Built 1969 Load: 29.9 t ADT: 5,242

PAOLI PIKE

Fair

Over: NORFOLK SOUTHERN

NORTH OF PAOLI 23K07, Chester, PA

Built 1974 Load: 29.9 t ADT: 21,990

CHESTER ROAD

Fair

Over: RIDLEY CREEK

2.0 MI TO FRAZER 32K5, Chester, PA

Built 1966 Load: 29.9 t ADT: 6,431

SWEDESFORD ROAD

Fair

Over: CTY.LN.EXP;RAMP E SB/WB

KING OF PRUSSIA 24K2, Chester, PA

Built 1997 Load: 29.9 t ADT: 22,777

PUGHTOWN ROAD

Fair

Over: FRENCH CREEK

WILSONS CORNER 14A3, Chester, PA

Built 1937 Load: 29.9 t ADT: 2,334

BALTIMORE PIKE

Fair

Over: BR.OF EAST BR.WHITE CLAY

2.5MI.TO LR-15045 46A06, Chester, PA

Built 1937 Load: 29.9 t ADT: 6,208

VALLEY CREEK ROAD

Fair

Over: VALLEY CREEK

NEAR GRUBBS MILL 31B5, Chester, PA

Built 1923 Load: 29.9 t ADT: 1,393

UNIVERSITY ROAD

Fair

Over: US-1 BY-PASS

.9MI.S.PA 896 INT. 44C09, Chester, PA

Built 1968 Load: 29.9 t ADT: 598

TOWNSHIP LINE ROAD

Fair

Over: WEST BR OF RED CLAY CRK.

NEW GARDEN E.MARLB 47C03, Chester, PA

Built 1982 Load: 29.9 t ADT: 1,236

TELEGRAPH RD(T435)

Fair

Over: WEST BR.BRANDYWINE CREEK

W.BRANDYWINE TWP. 18J06, Chester, PA

Built 1983 Load: 29.9 t ADT: 1,498

SR 1012

Fair

Over: SR 80-I 80

1 MI E NEEDFUL, Clearfield, PA

Built 1967 Load: 29.9 t ADT: 408

SR 4017

Fair

Over: SANDY LICK CREEK

OKLAHOMA, Clearfield, PA

Built 1967 Load: 29.9 t ADT: 11,712

T-215 OLANTA RD

Fair

Over: LITTLE CLEARFIELD CREEK

3100 FT SW OF SR 453, Clearfield, PA

Built 1908 Load: 29.9 t ADT: 70

CAMPGROUND RD

Fair

Over: LAUREL RUN

1000 EAST OF MUD RUN RD, Clearfield, PA

Built 1935 Load: 29.9 t ADT: 50

SR 120-PA 120

Fair

Over: YOUNG WOMENS CREEK

NORTH BEND, Clinton, PA

Built 1967 Load: 29.9 t ADT: 2,166

SR 120-PA 120

Fair

Over: WALNUT STREET

CITY OF LOCK HAVEN, Clinton, PA

Built 1980 Load: 29.9 t ADT: 6,523

SR 220-US 220 NB

Fair

Over: BALD EAGLE CREEK

2 MI E MILL HALL, Clinton, PA

Built 1976 Load: 29.9 t ADT: 8,091

ON TSR 342

Fair

Over: FISHING CREEK

2 MILE NE CLINTONDALE, Clinton, PA

Built 1969 Load: 29.9 t ADT: 652

T-558 BUCKTAIL AVE

Fair

Over: NORFOLK SOUTHERN R.R.

2 M. E OF RENOVO @ FARWEL, Clinton, PA

Built 1968 Load: 29.9 t ADT: 700

S.R. 239

Fair

Over: OVER FISHING CREEK

BOROUGH OF BENTON, Columbia, PA

Built 1926 Load: 29.9 t ADT: 4,089

SR 4008

Fair

Over: FISHING CREEK

3 MI N OF BLOOMSBURG, Columbia, PA

Built 1974 Load: 29.9 t ADT: 1,827

SR 4010 WEST ROAD

Fair

Over: OVER CUSSEWAGO CREEK

CUSSEWAGO TOWNSHIP, Crawford, PA

Built 1956 Load: 29.9 t ADT: 330

T-765 DOBBS ROAD

Fair

Over: OVER FEDERAL RUN

1.6 MI. N. LITTLE COOLEY, Crawford, PA

Built 1983 Load: 29.9 t ADT: 50

T-477 JAY ROAD

Fair

Over: OVER SUGAR CREEK E.BR.

6 MI.S.OF TOWNVILLE, Crawford, PA

Built 1935 Load: 29.9 t ADT: 250

I-81 SB; SR 0081

Fair

Over: SR 3005 FIREHOUSE RD.

3.5 MI N SHIPPENSBURG, Cumberland, PA

Built 1963 Load: 29.9 t ADT: 19,387

Showing 2,951-3,000 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.