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 198 DICKSON ST.

Fair

Over: OVER LAKE CREEK

RANDOLPH TOWNSHIP, Crawford, PA

Built 1984 Load: 29.0 t ADT: 485

SR 322 28TH DIV HW

Fair

Over: OVER SUGAR RUN

WEST SHENANGO TOWNSHIP, Crawford, PA

Built 1933 Load: 29.0 t ADT: 1,902

T-883 JOINER ROAD

Fair

Over: OVER CONNEAUT CK.MID.BR.

4 MI. N.W. BEAVER CENTER, Crawford, PA

Built 1983 Load: 29.0 t ADT: 250

US 11 SB; SR 0011

Fair

Over: HOGESTOWN RUN

HOGESTOWN, Cumberland, PA

Built 1936 Load: 29.0 t ADT: 11,286

1039 BELLE VISTA

Fair

Over: US 11&15; SR 0011 RAMP C

SUMMERDALE, Cumberland, PA

Built 1972 Load: 29.0 t ADT: 604

I-81 SB; SR 0081

Fair

Over: MOOREDALE RD.; T-466

5 MI.S. OF CARLISLE, Cumberland, PA

Built 1963 Load: 29.0 t ADT: 20,276

ALEX.SPRG RD T469

Fair

Over: ALEXANDERS SPRING CREEK

1.1 SW I 81/PA465/ALEX.SP, Cumberland, PA

Built 1984 Load: 29.0 t ADT: 100

HOT POINT AVE T303

Fair

Over: MIDDLE SPRING CREEK

.7NNW US11 & 696/MIDSPRIN, Cumberland, PA

Built 1973 Load: 29.0 t ADT: 200

I-83; SR 0083

Fair

Over: SR 3001

.5 MI.E. OF LAWNTON, Dauphin, PA

Built 1970 Load: 29.0 t ADT: 53,381

PA 230; H-BURG PK.

Fair

Over: MILL RACE

MIDDLETOWN BORO, Dauphin, PA

Built 1931 Load: 29.0 t ADT: 6,614

I-283 SB; SR 0283

Fair

Over: SR 8027 RAMP A

EISENHOWER, Dauphin, PA

Built 1970 Load: 29.0 t ADT: 25,249

PA 283 EB (SR0300)

Fair

Over: Lumber St. (T-380)

1.5 MI. N. HIGHSPIRE, Dauphin, PA

Built 1971 Load: 29.0 t ADT: 26,238

PA 341; COLEBROOK

Fair

Over: HOFFER CREEK

.5 MI. E. DEODATE, Dauphin, PA

Built 1928 Load: 29.0 t ADT: 1,439

PA 441; SR 0441

Fair

Over: PA 283; SR 0300

2MILE N E OF HIGHSPIRE, Dauphin, PA

Built 1971 Load: 29.0 t ADT: 4,370

SR 0341 LR 624

Fair

Over: PA TPK (I-76)

LONDONDERRY TOWNSHIP, Dauphin, PA

Built 1950 Load: 29.0 t ADT: 2,462

PA TPK (I-76)

Fair

Over: LR22007 PA 743

CONEWAGO TWP, Dauphin, PA

Built 1949 Load: 29.0 t ADT: 26,550

DANNER ROAD T-544

Fair

Over: ARMSTRONG CREEK

1.2NE ENDERS/ARMSTRONG CR, Dauphin, PA

Built 1974 Load: 29.0 t ADT: 75

HERTZLER RD T-303

Fair

Over: LYNCH RUN

0.6 MI SW OF SR 0230, Dauphin, PA

Built 1982 Load: 29.0 t ADT: 300

MEDIA BY-PASS RAMP

Fair

Over: BALTIMORE PIKE

.5MI.EAST PA 352 33J06, Delaware, PA

Built 1960 Load: 29.0 t ADT: 17,622

WEST CHESTER PIKE

Fair

Over: COBBS CR;SEPTA/ 3589-A6

63RD MARKET STR. 27D10, Delaware, PA

Built 1900 Load: 29.0 t ADT: 21,070

INTERSTATE 95(NB)

Fair

Over: RELOC.BARTRAM AV;CONRAIL

NR.SCOTTS PAPER 36B13, Delaware, PA

Built 1983 Load: 29.0 t ADT: 53,141

VALLEY BROOK ROAD

Fair

Over: WEST BR.CHESTER CREEK

3MI.SOUTH US-1 33A13, Delaware, PA

Built 1931 Load: 29.0 t ADT: 8,345

DARLINGTON ROAD

Fair

Over: CHESTER CREEK

DARLINGTON ROAD 33A08, Delaware, PA

Built 1930 Load: 29.0 t ADT: 1,176

MATTSON ROAD

Fair

Over: WEST BRANCH CHESTER CRK.

1.5 Mi N SR322 ADC D5, Delaware, PA

Built 1930 Load: 29.0 t ADT: 1,265

RAMP M1 TO 95 SB

Fair

Over: RELOC.CRUM CREEK

AT 795 INTERCHANGE 43J01, Delaware, PA

Built 1975 Load: 29.0 t ADT: 28,908

SR 321-PA 321

Fair

Over: WEST BRANCH CLARION R

WILCOX, Elk, PA

Built 1975 Load: 29.0 t ADT: 2,168

SR 5 EAST LAKE RD.

Fair

Over: OVER TWELVE MILE CREEK

HARBOR CREEK TOWNSHIP, Erie, PA

Built 1930 Load: 29.0 t ADT: 1,529

SR 20 RIDGE RD

Fair

Over: OVER KELLI RUN

GIRARD TOWNSHIP, Erie, PA

Built 1952 Load: 29.0 t ADT: 3,905

SR 1004 WILDMAN RD

Fair

Over: OVER TOWNLEY RUN

GREENFIELD TOWNSHIP, Erie, PA

Built 1942 Load: 29.0 t ADT: 297

SR 2019 BOW HILL R

Fair

Over: OVER BEAVER RUN

CONCORD TOWNSHIP, Erie, PA

Built 1965 Load: 29.0 t ADT: 369

T-305 TURNER RD

Fair

Over: E BR LEBOEUF CREEK

500 W OF MAY ROAD, Erie, PA

Built 1966 Load: 29.0 t ADT: 370

SHADY AVENUE

Fair

Over: HARE CREEK

1/2 MI SOUTH OF US 6, Erie, PA

Built 1989 Load: 29.0 t ADT: 1,711

SR 1005

Fair

Over: BACK CREEK

SALTLICK TOWNSHIP, Fayette, PA

Built 1940 Load: 29.0 t ADT: 305

SR 2019

Fair

Over: JONATHAN RUN

STEWART TOWNSHIP, Fayette, PA

Built 1938 Load: 29.0 t ADT: 207

SR 2031

Fair

Over: SR 0040

SOUTH UNION TOWNSHIP, Fayette, PA

Built 1971 Load: 29.0 t ADT: 4,475

SR 4003

Fair

Over: REDSTONE CREEK

BROWNSVILLE & JEFFERSON T, Fayette, PA

Built 1962 Load: 29.0 t ADT: 2,079

SR 4036

Fair

Over: LITTLE REDSTONE CREEK

JEFFERSON TOWNSHIP, Fayette, PA

Built 1938 Load: 29.0 t ADT: 569

NEW BEAVER CRK RD

Fair

Over: BEAVER CREEK

NE OF FLAT ROCK, Fayette, PA

Built 1940 Load: 29.0 t ADT: 150

STANTON ROAD

Fair

Over: BACK CREEK

AT THE SR 1005 INTERSECT, Fayette, PA

Built 1950 Load: 29.0 t ADT: 150

I-81 SB; SR 0081

Fair

Over: PA 316; SR 0316

WAYNE AVE. S.CHAMBERSBURG, Franklin, PA

Built 1963 Load: 29.0 t ADT: 20,054

I-81 NB; SR 0081

Fair

Over: US 30; SR 0030

U.S.30 CHAMBERSBURG, Franklin, PA

Built 1963 Load: 29.0 t ADT: 23,122

I-81 SB; SR 0081

Fair

Over: US 30; SR 0030

U.S. 30 CHAMBURSBURG, Franklin, PA

Built 1963 Load: 29.0 t ADT: 22,277

PA 696; Olde scotl

Fair

Over: I-81; SR 0081

2.25 M S SHIPPENSBURG, Franklin, PA

Built 1963 Load: 29.0 t ADT: 9,289

NEW BRIDGE ROAD

Fair

Over: CONOCOCHEAGUE CREEK W.BR

0.19 MI. NW OF SR 4006, Franklin, PA

Built 1964 Load: 29.0 t ADT: 100

T-603 LIMEKILN RD

Fair

Over: MUDDY RUN

0.55 MI. SE OF SR 533, Franklin, PA

Built 1967 Load: 29.0 t ADT: 275

PUNCH BOWL RD

Fair

Over: LICKING CREEK

0.5 MI WEST OF SR 3009, Franklin, PA

Built 1966 Load: 29.0 t ADT: 200

US 522

Fair

Over: S. BR. LT AUGHWICK CREEK

0.2 MI. SOUTH OF HUNT.CO., Fulton, PA

Built 1926 Load: 29.0 t ADT: 2,713

SR 0021

Fair

Over: BRANCH OF MUDDY CREEK

JEFFERSON & CUMBERLAND, Greene, PA

Built 1933 Load: 29.0 t ADT: 8,878

SR 3020

Fair

Over: BRANCH OF HOUSE RUN

JACKSON TOWNSHIP, Greene, PA

Built 1960 Load: 29.0 t ADT: 140

SR0286

Fair

Over: TWO LICK CR & RJ CORM RR

CLYMER NO.2, Indiana, PA

Built 1987 Load: 29.0 t ADT: 4,076

Showing 2,651-2,700 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.