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 2034

Fair

Over: PIKE RUN

WEST PIKE RUN TOWNSHIP, Washington, PA

Built 1941 Load: 27.2 t ADT: 111

SR 4012

Fair

Over: BURGETTS FORK

SMITH TOWNSHIP, Washington, PA

Built 1947 Load: 27.2 t ADT: 1,633

SR 0084 I-84 WB

Fair

Over: SR 0196 TR 196

STERLING TWP OVER TR 196, Wayne, PA

Built 1969 Load: 27.2 t ADT: 7,268

SR 0371 TR 371

Fair

Over: W BR DYBERRY CREEK

MT PLEASNT TP .3M E TR247, Wayne, PA

Built 1934 Load: 27.2 t ADT: 609

SR 3007 NEVILLE RD

Fair

Over: WILCOX CREEK

SALEM TWP .8 M N SR 3009, Wayne, PA

Built 1958 Load: 27.2 t ADT: 341

SR 0070

Fair

Over: CSXT R/R TWP RD YOUGH

SMITHTON HI-LEVEL BRIDGE, Westmoreland, PA

Built 1956 Load: 27.2 t ADT: 27,698

SR 0982

Fair

Over: JACOBS CREEK

MOUNT PLEASANT TOWNSHIP, Westmoreland, PA

Built 1941 Load: 27.2 t ADT: 2,585

SR 1028

Fair

Over: LITTLE CRABTREE CREEK

UNITY TOWNSHIP, Westmoreland, PA

Built 1950 Load: 27.2 t ADT: 846

SR 4093

Fair

Over: KISKIMINETAS & NS R/R

LEECHBURG BRIDGE, Westmoreland, PA

Built 1935 Load: 27.2 t ADT: 11,497

SR 0029 TR 29

Fair

Over: ROARING RUN CREEK

MONROE TWP 1.7 M S TR 292, Wyoming, PA

Built 1939 Load: 27.2 t ADT: 5,974

BRIDES DRIVE

Fair

Over: BUTTERMILK CREEK

0.5 M. SE MILL CITY, Wyoming, PA

Built 1978 Load: 27.2 t ADT: 50

US 15; SR 0015

Fair

Over: YELLOW BREECHES;RR;T-880

0.5 MI S OF GRANTHAM RD, York, PA

Built 1958 Load: 27.2 t ADT: 31,622

PA 74; SR 0074

Fair

Over: TRIB FOX RUN

DOVER, York, PA

Built 1957 Load: 27.2 t ADT: 10,225

SR 2033; Pr.mis rd

Fair

Over: CABIN CREEK

1 MI SW OF EAST PROSPECT, York, PA

Built 1951 Load: 27.2 t ADT: 2,237

ROCKVILLE RD.

Fair

Over: CENTERVILLE RUN

1 MILE NW OF GLEN ROCK, York, PA

Built 1976 Load: 27.2 t ADT: 280

TRI HILL ROAD

Fair

Over: TYLER RUN

ADJ TO I-83/TYLER RUN, York, PA

Built 1973 Load: 27.2 t ADT: 2,000

BAMBERGER ROAD

Fair

Over: FISHING CREEK

FISHING CRK. I-83 UNDERPA, York, PA

Built 1960 Load: 27.2 t ADT: 50

ROOSEVELT BLVD EXT

Fair

Over: FERNHILL PARK PATH

.5MI.SOUTH T-422 3480C08, Philadelphia, PA

Built 1960 Load: 27.2 t ADT: 93,783

INTERSTATE 95

Fair

Over: CARVER STREET & CONRAIL

NEAR FRALEY STR. 3482A09, Philadelphia, PA

Built 1967 Load: 27.2 t ADT: 251,200

INTERSTATE 95

Fair

Over: VAN KIRK STREET

NEAR CARVER STR. 3482A08, Philadelphia, PA

Built 1967 Load: 27.2 t ADT: 251,200

ACADEMY ROAD

Fair

Over: WALTONS RUN CREEK

NEAR COMLY ROAD 3373C06, Philadelphia, PA

Built 1960 Load: 27.2 t ADT: 11,998

COBBS CREEK PARKWA

Fair

Over: COBBS CREEK

SW.PHILA 3699-C01, Philadelphia, PA

Built 1924 Load: 27.2 t ADT: 25,948

RAMP C ON S.B.

Fair

Over: MIFFLIN STREET

MORRIS STREET INCH3700G03, Philadelphia, PA

Built 1967 Load: 27.2 t ADT: 7,239

T-427

Fair

Over: DENTS RUN

0.5 MI NW OF SR 555 INT, Elk, PA

Built 1997 Load: 27.2 t ADT: 59

T-461 GARRIES ROAD

Fair

Over: WALNUT CREEK

1200 S OF ZIMMERLY RD, Erie, PA

Built 1996 Load: 27.2 t ADT: 1,567

TR 309 NB ON RAMP

Fair

Over: LUZ&SUSQ RR; SUSQ RIVER

PLAINS TWP JCT RIVER ST, Luzerne, PA

Built 1976 Load: 27.2 t ADT: 5,100

SR 322-US 322

Fair

Over: BUFFALO RUN

KRUMRINE, Centre, PA

Built 2001 Load: 27.2 t ADT: 6,075

T-424 FALLS ROAD

Fair

Over: FALK RUN

200 NW OF SR 98, Erie, PA

Built 2007 Load: 27.2 t ADT: 62

PA 164

Fair

Over: LITTLE CONEMAUGH RIVER

0.2 MI NORTH OF PA 53, Cambria, PA

Built 2002 Load: 27.2 t ADT: 2,628

AIRPORT ROAD

Fair

Over: W. BR. PERKIOMEN CREEK

SOUTH OF HUFFS CHURCH, Berks, PA

Built 1979 Load: 27.2 t ADT: 120

I-78 EB

Fair

Over: DELAWARE RIVER

Easton, Northampton, PA

Built 1989 Load: 27.2 t ADT: 31,800

I-78 WB

Fair

Over: DELAWARE RIVER

EASTON, Northampton, PA

Built 1989 Load: 27.2 t ADT: 31,800

SOUTH PARK AVENUE

Fair

Over: SUCKER RUN

S of PA 372 3579-D5, Chester, PA

Built 1970 Load: 27.2 t ADT: 150

OLD ROUTE 22

Fair

Over: Trib to Northkill Ck

Northkill & S. Northkill, Berks, PA

Built 1922 Load: 27.2 t ADT: 1,000

OLD EASTON ROAD

Fair

Over: NORTH BR. NESHAMANY CRK.

0.5 Mi E. PA611 2922-H2, Bucks, PA

Built 1922 Load: 27.2 t ADT: 400

T-891 CHESTERFIELD

Fair

Over: MUDDY RUN

500 FT W OF PA 453, Clearfield, PA

Built 2015 Load: 27.2 t ADT: 25

T-678 (S. BULLOCK)

Fair

Over: NORTH ELK RUN

2.8M E OF WHITNEYVILLE, Tioga, PA

Built 2019 Load: 27.2 t ADT: 50

N HERSHEY AVE

Fair

Over: GROFF CREEK

SOUTH OF FARMERSVILLE RD, Lancaster, PA

Built 1985 Load: 27.2 t ADT: 200

T-414 TWP .BR# 3

Fair

Over: TRIB SO BR TOWANDA CREEK

1 M. W OF LIBERTY CORNERS, Bradford, PA

Built 1976 Load: 27.5 t ADT: 50

WITMER RD

Fair

Over: MILL CREEK

2000 FT NORTH OF SR 30, Lancaster, PA

Built 1964 Load: 27.9 t ADT: 2,300

PA 134; SR 0134

Fair

Over: PLUM RUN

N OF BARLOW, Adams, PA

Built 1929 Load: 28.1 t ADT: 2,924

SR 2015

Fair

Over: SWIFT RUN

N.W. OF NEW OXFORD, Adams, PA

Built 1965 Load: 28.1 t ADT: 685

T-502; SR 4013

Fair

Over: CONEWAGO CREEK

1 MI NE OF TABLE ROCK, Adams, PA

Built 1985 Load: 28.1 t ADT: 184

MCGAUGHLIN ROAD

Fair

Over: MIDDLE CREEK

2 SE FAIRFIELD/MIDDLE CRK, Adams, PA

Built 1904 Load: 28.1 t ADT: 75

SR 22/30

Fair

Over: SR 0376 EB WB

SR 0022/30 OVER SR 0376, Allegheny, PA

Built 1950 Load: 28.1 t ADT: 22,115

SR 0028 NB

Fair

Over: COAL CO RD & BARGE BASIN

BARGE BASIN, Allegheny, PA

Built 1971 Load: 28.1 t ADT: 23,789

SR 0028 NB

Fair

Over: DEER CREEK

NEAR HARMARVILLE INT., Allegheny, PA

Built 1972 Load: 28.1 t ADT: 23,789

CORAOPOLIS BLVD

Fair

Over: TWP 142 & MONTOUR RUN

OVER TWP.RD.142, Allegheny, PA

Built 1929 Load: 28.1 t ADT: 12,052

SR 65

Fair

Over: FREMONT STREET

.5 MI. SE OF SR 4012, Allegheny, PA

Built 1930 Load: 28.1 t ADT: 28,590

GOLDEN MILE HWY

Fair

Over: HUMMS RUN

1 MILE FROM COUNTY LINE, Allegheny, PA

Built 1950 Load: 28.1 t ADT: 16,638

Showing 2,151-2,200 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.