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

POST ROAD

Fair

Over: MARCUS HOOK CREEK

MARCUS HOOK 42K10, Delaware, PA

Built 1988 Load: 46.3 t ADT: 7,783

MID-COUNTY EXWY.NB

Fair

Over: PAPER MILL ROAD CRUM CK.

SMEDLEY PARK 34G05, Delaware, PA

Built 1990 Load: 46.3 t ADT: 40,282

MID-COUNTY EXWY.SB

Fair

Over: PAPER MILL ROAD;CRUM CK.

SMEDLEY PARK 34G05, Delaware, PA

Built 1990 Load: 46.3 t ADT: 41,753

CALCON HOOK ROAD

Fair

Over: AMTRAK

.4MI.SOUTH US-13 36A07, Delaware, PA

Built 1985 Load: 46.3 t ADT: 10,088

SR 4001

Fair

Over: ALYWORTH RUN

RIDGWAY, Elk, PA

Built 1987 Load: 46.3 t ADT: 748

SR 2219-US 219 TR

Fair

Over: BUFFALO & PITTSBURGH RR

1 MI EAST RIDGWAY, Elk, PA

Built 1987 Load: 46.3 t ADT: 517

SR 5 WEST LAKE RD.

Fair

Over: OVER CROOKED CREEK

SPRINGFIELD TOWNSHIP, Erie, PA

Built 1936 Load: 46.3 t ADT: 1,293

SR 18

Fair

Over: OVER BR TEMPLE CREEK

ELK CREEK TOWNSHIP, Erie, PA

Built 1985 Load: 46.3 t ADT: 616

SR 505 PERRY HWY

Fair

Over: OVER MILL CREEK BRANCH

MILL CREEK TOWNSHIP, Erie, PA

Built 1952 Load: 46.3 t ADT: 7,220

SR 1006 MOOREHEAD

Fair

Over: OVER SR 90 EB/WB

NORTH EAST TOWNSHIP, Erie, PA

Built 1959 Load: 46.3 t ADT: 247

SR 3008 J.WLLMS.AV

Fair

Over: OVER TEMPLE CREEK

CRANESVILLE BOROUGH, Erie, PA

Built 1967 Load: 46.3 t ADT: 2,389

T-515 VAN CAMP RD

Fair

Over: GOODBAN RUN

150 FT NE OF SR 98, Erie, PA

Built 1960 Load: 46.3 t ADT: 307

SR 4028

Fair

Over: COLVIN RUN

REDSTONE TOWNSHIP, Fayette, PA

Built 1969 Load: 46.3 t ADT: 2,418

SR 3004 LT.HICKORY

Fair

Over: OVER LITTLE HICKORY CK

HICKORY TOWNSHIP, Forest, PA

Built 1993 Load: 46.3 t ADT: 143

PA 997; Black Gap

Fair

Over: CONOCOCHEAGUE CREEK

BLACKGAP, Franklin, PA

Built 1969 Load: 46.3 t ADT: 6,148

PA997;Cumberland H

Fair

Over: Trib. Conodoguinet Creek

0.75 mi. N. Pleasanthall, Franklin, PA

Built 1929 Load: 46.3 t ADT: 4,203

SR 2007

Fair

Over: BR. LITTLE ANTIETAM CREE

.5 MI NE OF ROADSIDE, Franklin, PA

Built 1971 Load: 46.3 t ADT: 2,708

T-332 COVALT ROAD

Fair

Over: TONOLOWAY CREEK

0.8 MI.SE.OF COVALT, Fulton, PA

Built 1993 Load: 46.3 t ADT: 85

T-511 McMAHON RD.

Fair

Over: SHAVER CREEK

0.3 MI.S.OF COTTAGE, Huntingdon, PA

Built 1977 Load: 46.3 t ADT: 43

SR1041

Fair

Over: LITTLE MAHONING CREEK

ROCHESTER MILLS, Indiana, PA

Built 1961 Load: 46.3 t ADT: 385

SR0080 WB

Fair

Over: SR0036 NB&SB

ALLEGHENY BLVD WB, Jefferson, PA

Built 1960 Load: 46.3 t ADT: 12,084

SR0322

Fair

Over: MILL CREEK

PORT BARNETT NO.1, Jefferson, PA

Built 1990 Load: 46.3 t ADT: 2,488

SR2007

Fair

Over: SOLDIER RUN

PRESCOTTVILLE NO.5, Jefferson, PA

Built 1962 Load: 46.3 t ADT: 590

SR 1002

Fair

Over: LAUREL RUN

0.7 MI W OAKLAND MILLS, Juniata, PA

Built 1940 Load: 46.3 t ADT: 507

SR 2023

Fair

Over: MAHANTANGO CREEK

4 MI W MEISERVILLE, Juniata, PA

Built 1908 Load: 46.3 t ADT: 903

SR 3017

Fair

Over: TRIB TUSCARORA CREEK

ACADEMIA, Juniata, PA

Built 1920 Load: 46.3 t ADT: 268

SR 3019

Fair

Over: TRIB TUSCARORA CREEK

3 MI SW SPRUCE HILL, Juniata, PA

Built 1922 Load: 46.3 t ADT: 579

T-436 E. SALEM RD

Fair

Over: DELAWARE CREEK

BOROUGH OF EAST SALEM, Juniata, PA

Built 1919 Load: 46.3 t ADT: 400

SR 0081 I-81 SB

Fair

Over: SR 3031

MOOSIC BORO OVER SR 3031, Lackawanna, PA

Built 1963 Load: 46.3 t ADT: 26,216

SR 1013

Fair

Over: DAVISON CREEK

GREENFILD TP .8M N TR 107, Lackawanna, PA

Built 1941 Load: 46.3 t ADT: 411

SR4023 SIMERELL RD

Fair

Over: SR 0081 I-81 NB & SB

S ABINGTON TWP OVER I-81, Lackawanna, PA

Built 1959 Load: 46.3 t ADT: 841

SR 4032

Fair

Over: SUMMIT LAKE CREEK

S ABINGTON TWP .1M W TR 6, Lackawanna, PA

Built 1904 Load: 46.3 t ADT: 5,040

PA 23; SR 0023

Fair

Over: Landis Run

Near Eden;MANHEIM TWP LN, Lancaster, PA

Built 1948 Load: 46.3 t ADT: 16,715

US 222; SR 0222

Fair

Over: Landis Run

1 MI N. OF US 30, Lancaster, PA

Built 1969 Load: 46.3 t ADT: 61,962

Millersville Rd

Fair

Over: Little Conestoga Creek

0.5 mi.N. of Millersville, Lancaster, PA

Built 1967 Load: 46.3 t ADT: 19,404

SR 2015

Fair

Over: LITTLE BEAVER CREEK

1 MI S OF STRASBURG, Lancaster, PA

Built 1938 Load: 46.3 t ADT: 5,306

T557 ROHERSTOWN RD

Fair

Over: SWARR RUN

800 FT NORTH OF SR 4020, Lancaster, PA

Built 1961 Load: 46.3 t ADT: 1,860

N WEAVERTOWN RD

Fair

Over: MUDDY RUN

1 MI NORTH OF SR 340, Lancaster, PA

Built 1940 Load: 46.3 t ADT: 515

Union Street

Fair

Over: CONOY CREEK

500 FT SW OF SR 230, Lancaster, PA

Built 1940 Load: 46.3 t ADT: 2,070

EASTBROOK ROAD

Fair

Over: BEAVER RIVER

1/2 MI.N.E.OF SR 0018, Lawrence, PA

Built 1905 Load: 46.3 t ADT: 2,800

CHERRY ST

Fair

Over: SHENANGO RIVER

1000 N.W. OF SR 0168, Lawrence, PA

Built 1986 Load: 46.3 t ADT: 2,057

MCCONAHY RD

Fair

Over: TAYLOR RUN TRIB

500 EAST OF T-428 INT, Lawrence, PA

Built 1912 Load: 46.3 t ADT: 100

MAIN ST

Fair

Over: ECKLES RUN

408001 .3 MI N INT SR0288, Lawrence, PA

Built 1918 Load: 46.3 t ADT: 1,000

US 22; SR 0022

Fair

Over: EARLAKILL RUN

BETHEL TOWNSHIP, Lebanon, PA

Built 1948 Load: 46.3 t ADT: 8,259

I-81; SR 0081

Fair

Over: BRANCH RACCOON CREEK

0.5 MI.E. OF EXIT 80, Lebanon, PA

Built 1967 Load: 46.3 t ADT: 49,745

I-81; SR 0081

Fair

Over: RACCOON CREEK

1 MI.E. OF COUNTY LINE, Lebanon, PA

Built 1967 Load: 46.3 t ADT: 49,745

PA 934; FISHER AVE

Fair

Over: INDIANTOWN RUN

INDIANTOWN GAP, Lebanon, PA

Built 1941 Load: 46.3 t ADT: 9,969

T-412 (22ND ST)

Fair

Over: QUITTAPAHILLA CREEK

S.W. END OF LEBANON, Lebanon, PA

Built 1936 Load: 46.3 t ADT: 3,924

SR2057(S.HILLVIEW)

Fair

Over: I-78 and PA 309

HILLVIEW RD. OVER I-78, Lehigh, PA

Built 1988 Load: 46.3 t ADT: 1,560

FAIRMOUNT STREET

Fair

Over: TRIB.TO SAUCON CREEK

WEST OF MAIN ST., Lehigh, PA

Built 1977 Load: 46.3 t ADT: 410

Showing 9,751-9,800 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.