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

HILL ST ELKLAND B

Fair

Over: KIZER CREEK

ELKLAND BORO, Tioga, PA

Built 1982 Load: 21.8 t ADT: 200

SR 1006 HEMLOCK RD

Fair

Over: OVER HEMLOCK RUN

GLADE TOWNSHIP, Warren, PA

Built 1952 Load: 21.8 t ADT: 265

SR 1015

Fair

Over: ABANDONED MONTOUR R/R

PETERS TOWNSHIP, Washington, PA

Built 1969 Load: 21.8 t ADT: 4,518

SR 2020

Fair

Over: MONTGOMERY RUN

AMWELL TOWNSHIP, Washington, PA

Built 1938 Load: 21.8 t ADT: 559

SR 4006

Fair

Over: HARMON CREEK

HANOVER TOWNSHIP, Washington, PA

Built 1950 Load: 21.8 t ADT: 152

CLINT SPROWLS

Fair

Over: WHEELING CREEK TRIB

INTERSECTION WITH TR 414, Washington, PA

Built 1910 Load: 21.8 t ADT: 50

SR 0247 TR 247

Fair

Over: EQUINUNK CREEK

PRESTON TWP 1M SW SR 4024, Wayne, PA

Built 1958 Load: 21.8 t ADT: 645

SR3024 MIDDLE CRK

Fair

Over: COLLINS BROOK

CHERY RDG TP .5M E SR3039, Wayne, PA

Built 1934 Load: 21.8 t ADT: 188

SR 0056

Fair

Over: KISKI NS R/R SR 2054

VANDERGRIFT BRIDGE, Westmoreland, PA

Built 1933 Load: 21.8 t ADT: 8,762

PA 234; SR 0234

Fair

Over: US 30; SR 0030

INTERSECTION OF LR 1070, York, PA

Built 1971 Load: 21.8 t ADT: 7,434

SR 3047

Fair

Over: OIL CREEK

IRON RIDGE, York, PA

Built 1934 Load: 21.8 t ADT: 1,462

SR 4016

Fair

Over: BENNETT RUN

1.3 MI SOUTH OF I83, York, PA

Built 1915 Load: 21.8 t ADT: 313

WOODHAVEN ROAD WB

Fair

Over: POQUESSING CREEK

NEAR ROUTE 13 3373F08, Philadelphia, PA

Built 1964 Load: 21.8 t ADT: 23,214

RAMP D ON

Fair

Over: MARGARET MILNOR ARAMINGO

ARAMINGO AVE.INTER3481H10, Philadelphia, PA

Built 1968 Load: 21.8 t ADT: 14,406

SR2001

Fair

Over: LITTLE PINEY CREEK

LITTLE PINEY, Clarion, PA

Built 1997 Load: 21.8 t ADT: 921

SOUTHPOINTE BLVD.

Fair

Over: MORGANZA RUN

CECILTWP, Washington, PA

Built 1995 Load: 21.8 t ADT: 2,000

T715 Chestnut Ri

Fair

Over: Miller Run

0.3 MI FROM INT W/SR 217, Westmoreland, PA

Built 1973 Load: 21.8 t ADT: 50

T404 QUEENS RUN RD

Fair

Over: WEST BRANCH QUEENS RUN

0.4 MI N SR 1001, Clinton, PA

Built 1973 Load: 21.8 t ADT: 25

SOUTHPOINTE BLVD.

Fair

Over: MORGANZA RUN

600 N OF MORGANZA RESERV, Washington, PA

Built 1995 Load: 21.8 t ADT: 2,000

RAMP B1

Fair

Over: 65 NB-SB RAMP A1 RAMP R

RAMP B1 GLENFIELD, Allegheny, PA

Built 1977 Load: 22.4 t ADT: 2,238

SR 1009

Fair

Over: SR 0015 ; US 15

2 MI. N. OF HEIDLERSBURG, Adams, PA

Built 1968 Load: 22.7 t ADT: 420

SR 65

Fair

Over: ABANDONED ROADWAY

North of McKees Rocks Brg, Allegheny, PA

Built 1930 Load: 22.7 t ADT: 28,590

RAYMOND SHAFER HW

Fair

Over: CHARTIERS CREEK

1016SB OVER CHARTIERS CRK, Allegheny, PA

Built 1965 Load: 22.7 t ADT: 32,056

Mon City Bridge

Fair

Over: SR 837 CSX N&S MON RIV

Mon City Bridge, Allegheny, PA

Built 1988 Load: 22.7 t ADT: 5,348

FORT. DUQ BRG (UP)

Fair

Over: FT DUQ BR SB ALLEG RVR

Fort Duquesne Bridge, Allegheny, PA

Built 1959 Load: 22.7 t ADT: 17,076

WALTER RD

Fair

Over: PINE CREEK NORTH BRANCH

PN03 PINE CREEK N BR #3, Allegheny, PA

Built 1939 Load: 22.7 t ADT: 2,227

MARVIN AV

Fair

Over: GIRTYS RUN

118004 OVER GIRTYS RUN, Allegheny, PA

Built 1936 Load: 22.7 t ADT: 50

MCINTYRE RD

Fair

Over: DEER CREEK

DE13 DEER CREEK NO. 13, Allegheny, PA

Built 1889 Load: 22.7 t ADT: 88

CHARTIERS AV

Fair

Over: PAT AIRPORT BUSWAY

020 Chartiers Ave Bridge, Allegheny, PA

Built 1908 Load: 22.7 t ADT: 12,700

PATTON ST

Fair

Over: NORF SOUTH RR AVE U WALL

TL13 INT E MCKEESPORTRD, Allegheny, PA

Built 1971 Load: 22.7 t ADT: 11,414

MERRIMAN RD

Fair

Over: BIG SEWICKLEY CREEK

SB08 BIG SEWICKLEY CR#8, Allegheny, PA

Built 1916 Load: 22.7 t ADT: 408

RAMP D

Fair

Over: OHIO RIVER BACK CHANNEL

Neville Island Bridge, Allegheny, PA

Built 1975 Load: 22.7 t ADT: 1,895

BEAVER VALLEY EXPY

Fair

Over: SR 3013 RACCOON CREEK

600 N OF ALIQ INTER, Beaver, PA

Built 1969 Load: 22.7 t ADT: 13,339

BEAVER VALLEY EX

Fair

Over: SR 3013 RACCOON CREEK

600N.OF ALIQ.INTERCH., Beaver, PA

Built 1969 Load: 22.7 t ADT: 13,201

SR 2023

Fair

Over: COVE CREEK

1/4 MI E OF OTT TOWN, Bedford, PA

Built 1962 Load: 22.7 t ADT: 62

SR 3004

Fair

Over: WILLS CREEK

HOBLITZEL, Bedford, PA

Built 1965 Load: 22.7 t ADT: 137

T494 Pigeon Hill R

Fair

Over: ADAMS RUN

1 MI.SE.OF FISHERTOWN, Bedford, PA

Built 1982 Load: 22.7 t ADT: 16

PA 10 (LR 274)

Fair

Over: ALLEGHENY CREEK

VILLAGE OF GREEN HILLS, Berks, PA

Built 1939 Load: 22.7 t ADT: 4,507

SR 100(LR 779)

Fair

Over: TWP.RD.666

NEW BERLINVILLE, Berks, PA

Built 1964 Load: 22.7 t ADT: 15,220

BASHORE ST.

Fair

Over: TRIBUTARY OF CROSSKILL

N.OF I78 W.OF SR 501, Berks, PA

Built 1920 Load: 22.7 t ADT: 144

HEMLOCK RD

Fair

Over: TROUT RUN RESERVOIR

SPILLWAY NW OF SR 2049, Berks, PA

Built 1974 Load: 22.7 t ADT: 100

T-597 OLD LANC.PIK

Fair

Over: LITTLE MUDDY CREEK

1 MI.S.OF GOUGLERSVILLE, Berks, PA

Built 1921 Load: 22.7 t ADT: 440

SR 1013

Fair

Over: SINKING RUN

1 MI.NE.OF CULP, Blair, PA

Built 1930 Load: 22.7 t ADT: 530

T500 Hunter Road

Fair

Over: BELLS GAP RUN

.5 MI.NW.OF BELLWOOD, Blair, PA

Built 1968 Load: 22.7 t ADT: 359

T343 Frederick Rd

Fair

Over: PLUM CREEK

1 MI.NW.OF MARTINSBURG, Blair, PA

Built 1963 Load: 22.7 t ADT: 199

T454 Lwr ClvrCrkR

Fair

Over: CLOVER CREEK

2 MI.S.OF WILLIAMSBURG, Blair, PA

Built 1962 Load: 22.7 t ADT: 311

INTERSTATE 295 WB

Fair

Over: MILL CREEK

FAIRLESS JUNCTION 37E13, Bucks, PA

Built 1972 Load: 22.7 t ADT: 25,103

BIG OAK ROAD

Fair

Over: INTERSTATE 295

.4MI.N.OF NEW US1 37J06, Bucks, PA

Built 1967 Load: 22.7 t ADT: 9,206

INTERSTATE 295 WB

Fair

Over: LANGHORNE-YARDLEY ROAD

WEST OF YARDLEY 37H02, Bucks, PA

Built 1972 Load: 22.7 t ADT: 23,585

STREET ROAD

Fair

Over: SOUTHAMPTON CREEK

1.5MI.TO LR-463 35B09, Bucks, PA

Built 1968 Load: 22.7 t ADT: 26,582

Showing 951-1,000 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.