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

EAST GAY STREET

Fair

Over: PENN CENTRAL (ABANDONED)

5MI.TO LR-15090 32B10, Chester, PA

Built 1960 Load: 26.3 t ADT: 13,640

US 30 BYPASS

Fair

Over: BONDSVILLE RD (RTE 340)

NEAR DOWNINGTOWN 30A1, Chester, PA

Built 1961 Load: 26.3 t ADT: 42,440

ROUTE 30 BYPASS

Fair

Over: TRIB. OF BEAVER CREEK

NEAR DOWNINGTOWN 30C1, Chester, PA

Built 1961 Load: 26.3 t ADT: 42,440

GAP-NEWPORT PIKE

Fair

Over: US-1 BY-PASS

US-1;PA 41 INTER. 46B05, Chester, PA

Built 1965 Load: 26.3 t ADT: 20,472

LANCASTER PIKE

Fair

Over: US ROUTE 1 BYPASS

OXFORD 51C1, Chester, PA

Built 1968 Load: 26.3 t ADT: 5,947

STREET ROAD

Fair

Over: BRANCH CHESTER CREEK

NR.CONRAIL BRIDGE 41J03, Chester, PA

Built 1911 Load: 26.3 t ADT: 9,765

NORTH VALLEY ROAD

Fair

Over: VALLEY CREEK

NEAR PAOLI 23H04, Chester, PA

Built 1922 Load: 26.3 t ADT: 6,907

EAST STRASBURG RD

Fair

Over: RIDLEY CREEK

.7 MI. EAST PA 352 33D7, Chester, PA

Built 1970 Load: 26.3 t ADT: 2,883

EWING ROAD

Fair

Over: EAST BRANCH BIG ELK CR.

NEAR LONGS FORD 44G04, Chester, PA

Built 1928 Load: 26.3 t ADT: 364

WAGONTOWN ROAD

Fair

Over: WEST BR.BRANDYWINE CREEK

WAGONTOWN 18G12, Chester, PA

Built 1928 Load: 26.3 t ADT: 689

REECEVILLE ROAD

Fair

Over: US-30 BYPASS

E. OF COATESVILLE 29D1, Chester, PA

Built 1962 Load: 26.3 t ADT: 10,549

SR 453-PA 453

Fair

Over: POTTS RUN

BOARDMAN, Clearfield, PA

Built 1934 Load: 26.3 t ADT: 400

SR 3008

Fair

Over: CLEARFIELD CREEK

COALPORT, Clearfield, PA

Built 1971 Load: 26.3 t ADT: 207

SR 4014

Fair

Over: SANDY CREEK

2 MI E OKLAHOMA, Clearfield, PA

Built 1950 Load: 26.3 t ADT: 2,588

SR 44-PA 44

Fair

Over: SR 220-US 220

1 MILE NORTHEAST AVIS, Clinton, PA

Built 1966 Load: 26.3 t ADT: 3,461

SR 0080 EBL

Fair

Over: OVER S.R. 1003

1 MILE W OF EXIT 36, Columbia, PA

Built 1963 Load: 26.3 t ADT: 14,255

SR 0080 WBL

Fair

Over: OVER S.R. 1003

1 MILE W OF EXIT 36, Columbia, PA

Built 1963 Load: 26.3 t ADT: 15,068

BLACK RUN ROAD

Fair

Over: OVER BLACK RUN

1 MI S OF EYERS GROVE, Columbia, PA

Built 1936 Load: 26.3 t ADT: 120

SR 4049

Fair

Over: WEST BRANCH FISHING CRK

0.5 MI N OF CENTRAL, Columbia, PA

Built 1973 Load: 26.3 t ADT: 242

SR 79 SB

Fair

Over: OVER CONNEAUT SWAMP

GREENWOOD TOWNSHIP, Crawford, PA

Built 1969 Load: 26.3 t ADT: 6,469

SR 79 NB

Fair

Over: OVER SR 4011 MOSIERTOWN

CUSSEWAGO TOWNSHIP, Crawford, PA

Built 1968 Load: 26.3 t ADT: 7,485

T-401 HURLBERT RD.

Fair

Over: OVER PYMATUNING TRIB.

SOUTH SHENANGO TOWNSHIP, Crawford, PA

Built 1978 Load: 26.3 t ADT: 250

WATER STREET

Fair

Over: OVER MILL RUN

400 FT NORTH OF CITY HALL, Crawford, PA

Built 1906 Load: 26.3 t ADT: 3,500

I-81 NB; SR 0081

Fair

Over: PA 233; SR 0233

NEWVILLE INTERCHANGE, Cumberland, PA

Built 1963 Load: 26.3 t ADT: 20,565

I-81 NB; SR 0081

Fair

Over: MOOREDALE RD.; T-466

5 MI.S. CARLISLE, Cumberland, PA

Built 1963 Load: 26.3 t ADT: 20,565

SR 3007 BIG SPRG.R

Fair

Over: BIG SPRING CREEK

1 MI.S. OF NEWVILLE, Cumberland, PA

Built 1890 Load: 26.3 t ADT: 219

SR 4007 MOUNTAIN R

Fair

Over: CONODOGUINET CREEK

3 MI E OF NEWBURG, Cumberland, PA

Built 1909 Load: 26.3 t ADT: 313

PA TPK (I-76)

Fair

Over: LETORT SPRING RUN

MIDDLESEX TWP, Cumberland, PA

Built 1950 Load: 26.3 t ADT: 20,357

T606;FIRE HOUSE RD

Fair

Over: I-81; SR 0081

0.5 MI. N. OF GRANTVILLE, Dauphin, PA

Built 1968 Load: 26.3 t ADT: 1,435

T-390- UNION ST.

Fair

Over: PA 283; SR 0300

2 MI.N. MIDDLETOWN, Dauphin, PA

Built 1971 Load: 26.3 t ADT: 8,385

PA 443; SR 0443

Fair

Over: SR 0022; RAMP P;US22-322

1 MI E DAUPHIN, Dauphin, PA

Built 1977 Load: 26.3 t ADT: 3,913

SR 3005

Fair

Over: NORFOLK SOUTHERN

40TH STREET OFF DERRY ST., Dauphin, PA

Built 1989 Load: 26.3 t ADT: 2,661

SR 4009

Fair

Over: LITTLE WICONISCO CREEK

MILLERSBURG, Dauphin, PA

Built 1960 Load: 26.3 t ADT: 1,814

SO.MALTA RD. T-482

Fair

Over: MAHANTANGO CREEK

.1S MALTA/MAHANTANGO CRK., Dauphin, PA

Built 1973 Load: 26.3 t ADT: 100

BACK ROAD T-551

Fair

Over: POWELL CREEK

0.83 MI SE OF SR 4013, Dauphin, PA

Built 1991 Load: 26.3 t ADT: 200

WALNUT ST

Fair

Over: PAXTON CREEK

PAXTON CR/WALNUT ST/HBG, Dauphin, PA

Built 1962 Load: 26.3 t ADT: 500

SMITH BRIDGE ROAD

Fair

Over: WEST BR. CHESTER CREEK

EAST OF US 322 32K12, Delaware, PA

Built 1927 Load: 26.3 t ADT: 4,685

CHAPEL HILL ROAD

Fair

Over: RIDLEY CREEK

RIDLEY CREEK PARK 24H13, Delaware, PA

Built 1927 Load: 26.3 t ADT: 4,643

SR 948-PA 948

Fair

Over: CLARION RIVER

REAR ADMIRAL PAUL H. SPEE, Elk, PA

Built 1975 Load: 26.3 t ADT: 6,743

SR 2008 W HIGH ST

Fair

Over: OVER FRENCH CREEK S.BR.

UNION CITY BOROUGH, Erie, PA

Built 1975 Load: 26.3 t ADT: 632

SR 0040

Fair

Over: SR 8005

SOUTH UNION TOWNSHIP, Fayette, PA

Built 1971 Load: 26.3 t ADT: 18,509

GUTHRIE ROAD

Fair

Over: LITTLE SANDY CREEK

EAST OF ROUTE 381, Fayette, PA

Built 1898 Load: 26.3 t ADT: 100

SR 4002 DAWSON RD.

Fair

Over: OVER WEST HICKORY CREEK

HARMONY TOWNSHIP, Forest, PA

Built 1964 Load: 26.3 t ADT: 32

SR 4018 McClays Ml

Fair

Over: TRIB CONODOGUINET CR

1.5 MI SE OF MOWERSVILLE, Franklin, PA

Built 1827 Load: 26.3 t ADT: 702

CAMPBELLS RUN ROAD

Fair

Over: CAMPBELL RUN

0.3 MI NW OF SR 30, Franklin, PA

Built 1977 Load: 26.3 t ADT: 140

SR 3001

Fair

Over: SOUTH FORK WHEELING CK.

ALEPPO TOWNSHIP, Greene, PA

Built 1938 Load: 26.3 t ADT: 62

TOWNSHIP ROAD 445

Fair

Over: S. FORK OF WHEELING CK.

NORTH OF ALEPPO VILLAGE, Greene, PA

Built 1967 Load: 26.3 t ADT: 25

TOWNSHIP ROAD 604

Fair

Over: WHITELEY CREEK

GREENE TOWNSHIP, Greene, PA

Built 1900 Load: 26.3 t ADT: 20

PA 26

Fair

Over: HERODS RUN

2.2 MILE NORTH OF SR 1019, Huntingdon, PA

Built 1931 Load: 26.3 t ADT: 1,934

SR 2016

Fair

Over: AUGHWICK CREEK

CHARLES PRICE BRIDGE, Huntingdon, PA

Built 1990 Load: 26.3 t ADT: 599

Showing 1,751-1,800 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.