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 27 GRAND STREET

Poor

Over: OVER CALDWELL CREEK

ELDRED TOWNSHIP, Warren, PA

Built 1930 Load: 38.1 t ADT: 1,356

T-589 OLD ST.LINE

Poor

Over: OVER KIANTONE CREEK

FARMINGTON TOWNSHIP, Warren, PA

Built 1979 Load: 38.1 t ADT: 100

SR 4028

Poor

Over: BRANCH OF BURGETTS FORK

BURGETTSTOWN BOROUGH, Washington, PA

Built 1962 Load: 38.1 t ADT: 1,153

THOMPSON AVENUE

Poor

Over: SR 1024 (THIRD STREET)

THOMPSON AVENUE BRIDGE, Washington, PA

Built 1978 Load: 38.1 t ADT: 300

SR 0170 TR 170

Poor

Over: LACKAWAXEN RIVER

CLINTON TWP .4M S SR 4004, Wayne, PA

Built 1937 Load: 38.1 t ADT: 605

SR 4025

Poor

Over: LITTLE CREEK

MT PLESNT TP .2MN SR 4023, Wayne, PA

Built 1955 Load: 38.1 t ADT: 527

RAILROAD STREET

Poor

Over: BUFFALO RUN

400 W SR 31 RUFFSDALE, Westmoreland, PA

Built 1979 Load: 38.1 t ADT: 125

MOWRY ST. (T-316)

Poor

Over: LITTLE MESHOPPEN CREEK

MESHOPPEN ADJ. TO SR 267, Wyoming, PA

Built 1927 Load: 38.1 t ADT: 120

ROOSEVELT BLVD EXT

Poor

Over: ROBERTS AVE;SEPTA;CSX

WAYNE JNC VIA 3480D08, Philadelphia, PA

Built 1960 Load: 38.1 t ADT: 55,005

Lycoming Street

Poor

Over: CONRAIL (Richmond Br)

W of Broad Street, Philadelphia, PA

Built 1929 Load: 38.1 t ADT: 900

SR 645(LR 06004)

Poor

Over: LITTLE SWATARA CREEK

CAMP SWATARA ROAD, Berks, PA

Built 1949 Load: 39.0 t ADT: 2,570

T-547 RAILROAD RD.

Poor

Over: IRISH CREEK

DAUBERVILLE BRIDGE, Berks, PA

Built 1951 Load: 39.0 t ADT: 1,249

BRISTOL PIKE

Poor

Over: MARTINS CREEK

TULLYTOWN BOROUGH 43H02, Bucks, PA

Built 1945 Load: 39.0 t ADT: 2,184

ROCKY DALE ROAD

Poor

Over: RIDGE VALLEY CREEK

0.5 Mi W SR4027 2918-H1, Bucks, PA

Built 1936 Load: 39.0 t ADT: 100

SR0068

Poor

Over: B&LE B&P RRS;CONNOQUE CR

KARNS CROSSING, Butler, PA

Built 1937 Load: 39.0 t ADT: 8,507

T-496 EAGLEVILLE R

Poor

Over: BALD EAGLE CREEK

2300 FT FROM INT SR 1002, Centre, PA

Built 1960 Load: 39.0 t ADT: 400

EDGES MILL ROAD

Poor

Over: BRANCH BEAVER CREEK

NEAR EDGE MILL 30C1, Chester, PA

Built 1974 Load: 39.0 t ADT: 1,841

SR 62

Poor

Over: OVER PRATHER RUN

HICKORY TOWNSHIP, Forest, PA

Built 1926 Load: 39.0 t ADT: 1,581

DICKEYS RD

Poor

Over: BUCK RUN

3 MI N OF MERCERSBURG, Franklin, PA

Built 1925 Load: 39.0 t ADT: 500

SPRAGGS ROAD

Poor

Over: ROBERTS RUN

VILLAGE OF SPRAGGS TR318, Greene, PA

Built 1926 Load: 39.0 t ADT: 100

PA 994

Poor

Over: TATMAN RUN

0.6 MILE WEST OF SR 3001, Huntingdon, PA

Built 1938 Load: 39.0 t ADT: 1,435

T-401 NIPPLE ROAD

Poor

Over: MAHANTANGO CREEK

0.1 MI EAST OF SR 2023, Juniata, PA

Built 1989 Load: 39.0 t ADT: 200

MOHLER CHURCH RD

Poor

Over: COCALICO CREEK

1500 FT SE OF SR 1047, Lancaster, PA

Built 1940 Load: 39.0 t ADT: 825

US 22(LR 771)

Poor

Over: TWP.RD.567* MICKLEY ROAD

0.7 M.E.OF 15TH ST.EXIT, Lehigh, PA

Built 1952 Load: 39.0 t ADT: 76,351

ALLEMAENGEL RD.

Poor

Over: ONTELAUNEE CREEK

WANAMAKERS LYNN TWP., Lehigh, PA

Built 1910 Load: 39.0 t ADT: 200

SR 3020

Poor

Over: BLACK CREEK

BLACK CREEK 2.5M W SR3024, Luzerne, PA

Built 1929 Load: 39.0 t ADT: 1,382

SR3014(45042)T-940

Poor

Over: POHOPOCO CREEK

VALLEY RD.T-940, Monroe, PA

Built 1935 Load: 39.0 t ADT: 356

WASHINGTON LANE

Poor

Over: GLENSIDE AVE; SEPTA; CRK

CHELTENHAM 31K13, Montgomery, PA

Built 1958 Load: 39.0 t ADT: 18,449

SR 890

Poor

Over: LITTLE SHAMOKIN CREEK

1MI S OF AUGUSTAVILLE, Northumberland, PA

Built 1949 Load: 39.0 t ADT: 2,336

SR 1003

Poor

Over: TAYLORTOWN CREEK

LACKAWXN TWP 241N SR1002, Pike, PA

Built 1958 Load: 39.0 t ADT: 592

T440 (TWP. BR. 2)

Poor

Over: TRIB. TO SHOHOLA CREEK

1 MI S OF SR 434, Pike, PA

Built 1956 Load: 39.0 t ADT: 50

PA 443(LR53012)

Poor

Over: PINE CREEK

1.1 MI.NE OF ORWIGSBURG, Schuylkill, PA

Built 1929 Load: 39.0 t ADT: 2,692

SR 4012

Poor

Over: DEEP CREEK

SACRAMENTO, Schuylkill, PA

Built 1929 Load: 39.0 t ADT: 681

T601 (SALT SPRING)

Poor

Over: SILVER LAKE CREEK

1 MI W OF FRANKLIN FORKS, Susquehanna, PA

Built 1971 Load: 39.0 t ADT: 75

SR 1055

Poor

Over: NORTH BR. PIGEON CREEK

SOMERSET TOWNSHIP, Washington, PA

Built 1956 Load: 39.0 t ADT: 9,207

SR 1057

Poor

Over: MINGO CREEK

NOTTINGHAM TOWNSHIP, Washington, PA

Built 1953 Load: 39.0 t ADT: 630

HOPKINS ROAD ("E")

Poor

Over: SUNNY BROOK

3RD BR NW OF ELLISON ROAD, Wayne, PA

Built 1958 Load: 39.0 t ADT: 75

T-822 Welty Road

Poor

Over: Welty Run

BTW T497 & SR 0982, Westmoreland, PA

Built 1936 Load: 39.0 t ADT: 60

T-620 GAMBLE ROAD

Poor

Over: BALD EAGLE CREEK

150 NW OF SR 425, York, PA

Built 1992 Load: 39.0 t ADT: 100

ROOSEVELT BLVD.

Poor

Over: 5TH STREET (OVERPASS)

1MI.NORTH TR 611 3480J07, Philadelphia, PA

Built 1955 Load: 39.0 t ADT: 49,662

COTTMAN AVENUE

Poor

Over: ROOSEVELT BLVD.

@ ROOSEVELT BLVD. 3482B03, Philadelphia, PA

Built 1967 Load: 39.0 t ADT: 27,180

PAINTERS RUN RD

Poor

Over: PAINTERS RUN

PA03 PAINTERS RUN NO. 3, Allegheny, PA

Built 1955 Load: 39.9 t ADT: 15,049

T-377 TERRY TWP.

Poor

Over: SUGAR RUN

0.5 MI. WEST OF NEW ERA, Bradford, PA

Built 1984 Load: 39.9 t ADT: 50

TRAUGERS CROSSING

Poor

Over: GALLOWS RUN

.2 Mi SW Rt 611 2584-A4, Bucks, PA

Built 1940 Load: 39.9 t ADT: 350

PA TPK. RAMP AB

Poor

Over: PA TPK (I-476)

QUAKERTOWN INTERCHANGE, Bucks, PA

Built 1955 Load: 39.9 t ADT: 10,774

T-431 WHITESTOWN

Poor

Over: LITTL CONNOQUENESSING CR

2.0 MI SW OF WHITESTOWN, Butler, PA

Built 1916 Load: 39.9 t ADT: 100

T637 RIVER HILL RD

Poor

Over: DEER CREEK

200 FT NE OF SR 1009, Clearfield, PA

Built 1913 Load: 39.9 t ADT: 30

MIDDLETOWN ROAD

Poor

Over: BALTIMORE PIKE

GRANITE RUN MALL 33H06, Delaware, PA

Built 1935 Load: 39.9 t ADT: 17,613

T-604 MUDDY RUN RD

Poor

Over: MUDDY RUN

0.70 MI. SW OF SR 433, Franklin, PA

Built 1963 Load: 39.9 t ADT: 275

T-382 BEATTY ROAD

Poor

Over: TONOLOWAY CREEK

2.5 MI.N.OF NEEDMORE, Fulton, PA

Built 1911 Load: 39.9 t ADT: 20

Showing 22,851-22,900 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.