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

GEN.LAFAYETTE BLVD

Poor

Over: RADLEY CREEK

OSBORNE HILL 3693-B4, Chester, PA

Built 1982 Load: 25.4 t ADT: 500

ON TSR 680

Poor

Over: MOSHANNON CREEK

CHESTER HILL BORO, Clearfield, PA

Built 1940 Load: 25.4 t ADT: 2,319

SR 1022

Poor

Over: OLD CHANNEL TO FISH CRK

4 MI E OF ROHRSBURG, Columbia, PA

Built 1947 Load: 25.4 t ADT: 1,650

SR 2034 SPRING ST.

Poor

Over: OVER SR 6 FR.CK.HWY.& RR

CITY OF MEADVILLE, Crawford, PA

Built 1951 Load: 25.4 t ADT: 4,163

T-835 PARKER ROAD

Poor

Over: OVER CONNEAUT CREEK

0.9 MI. W. BEAVER CENTER, Crawford, PA

Built 1975 Load: 25.4 t ADT: 250

SR 0083; I-83

Poor

Over: SUSQ.RIVER;R.R.LOWTHER S

JOHN HARRIS BRIDGE; I-83, Dauphin, PA

Built 1960 Load: 25.4 t ADT: 85,221

STATE ROAD

Poor

Over: DARBY CREEK

EAST TOWNSHIP LINE 26B13, Delaware, PA

Built 1950 Load: 25.4 t ADT: 29,754

WANAMAKER AVENUE

Poor

Over: DARBY CREEK

.4MILES NORTH I-95 35E13, Delaware, PA

Built 1930 Load: 25.4 t ADT: 20,881

CONCORD ROAD

Poor

Over: CHESTER CREEK / 3694-J10

.7MI.S.CONCORDVI. 32E12, Delaware, PA

Built 1898 Load: 25.4 t ADT: 8,391

SR 3022 KINTER HL.

Poor

Over: OVER LT CONNEAUTTEE CK

WASHINGTON TOWNSHIP, Erie, PA

Built 1959 Load: 25.4 t ADT: 577

SR 3023

Poor

Over: NORTH BR. DUNLAP CREEK

GERMAN & MENALLEN TWPS., Fayette, PA

Built 1962 Load: 25.4 t ADT: 1,068

PA 915

Poor

Over: UNT Laurel Fork

2.6 MILE SOUTH OF BED.CO., Fulton, PA

Built 1953 Load: 25.4 t ADT: 603

SR0580

Poor

Over: CUSHION CREEK

MCKEAGES CROSSING, Indiana, PA

Built 1939 Load: 25.4 t ADT: 619

WELLS STREET

Poor

Over: LEGGETTS CREEK

100 NW OF HOLLISTER AVE, Lackawanna, PA

Built 1979 Load: 25.4 t ADT: 1,285

SR 4033

Poor

Over: LITTLE CHIQUES CREEK

3 MI.N. OF MT. JOY, Lancaster, PA

Built 1947 Load: 25.4 t ADT: 1,918

SR 4040

Poor

Over: CHICKIES CREEK

E. SIDE OF MANHEIM, Lancaster, PA

Built 1926 Load: 25.4 t ADT: 6,522

FULTON VIEW ROAD

Poor

Over: TRIB. TO CONOWINGO CREEK

0.7 E OF US 222, Lancaster, PA

Built 1977 Load: 25.4 t ADT: 160

T-892 QUARRY RD

Poor

Over: CONESTOGA RIVER

3/4 MI NW OF SR 897, Lancaster, PA

Built 1916 Load: 25.4 t ADT: 175

REIST RD T-419

Poor

Over: BECK CREEK

1.6SW LEB CITY/BECK CRK., Lebanon, PA

Built 1974 Load: 25.4 t ADT: 400

I-80 WB

Poor

Over: PA 93 TR 93 EXIT 253

SUGARLOAF TWP OVER TR 93, Luzerne, PA

Built 1965 Load: 25.4 t ADT: 15,666

I-80 EB

Poor

Over: PA 309

BUTLER TWP OVER PA 309, Luzerne, PA

Built 1966 Load: 25.4 t ADT: 10,916

I-81 NB

Poor

Over: SR 3007 @ EXIT 155

DORRANCE TWP OVER SR 3007, Luzerne, PA

Built 1965 Load: 25.4 t ADT: 18,137

SR 0081 I-81 NB

Poor

Over: SR 8011

HANOVER TWP OVR TR29 RAMP, Luzerne, PA

Built 1967 Load: 25.4 t ADT: 19,203

SR 1013

Poor

Over: TOBYS CREEK

LUZERNE BO .1 M N TR 309, Luzerne, PA

Built 1939 Load: 25.4 t ADT: 8,846

SR1036 CARVERTONRD

Poor

Over: ABRAHAMS CREEK

KINGSTON TP .1M W SR 1021, Luzerne, PA

Built 1976 Load: 25.4 t ADT: 4,144

SR 3019

Poor

Over: BIG BLACK CREEK

HAZLE TWP .5 M S TR 940, Luzerne, PA

Built 1990 Load: 25.4 t ADT: 3,692

SR 4016

Poor

Over: HUNLOCK CREEK

HUNLOCK TWP @ JCT SR 4003, Luzerne, PA

Built 1925 Load: 25.4 t ADT: 2,858

WATER STREET

Poor

Over: SUSQ RIV / LUZ & SUSQ RR

PITTSTON / WEST PITTSTON, Luzerne, PA

Built 1914 Load: 25.4 t ADT: 8,665

SR 2006 BLACKTOWN

Poor

Over: OVER SR 79 NB/SB

SPRINGFIELD TOWNSHIP, Mercer, PA

Built 1963 Load: 25.4 t ADT: 608

SR 2014 SCRUBGRASS

Poor

Over: OVER WOLF CREEK

WOLF CREEK TOWNSHIP, Mercer, PA

Built 1939 Load: 25.4 t ADT: 472

T499 ORR ROAD

Poor

Over: OVER B.&L.E. RAILROAD

ORR ROAD COOLSPRINGS TWP., Mercer, PA

Built 1928 Load: 25.4 t ADT: 124

PA 435 (LR 254)

Poor

Over: I-380 (LR 1002) SB

OVER I-380-EXIT 13(6), Monroe, PA

Built 1969 Load: 25.4 t ADT: 3,590

WB COUNTY LINE EXP

Poor

Over: NORTH GULPH ROAD

VALLEY FORGE 27J12/3366D5, Montgomery, PA

Built 1966 Load: 25.4 t ADT: 44,235

PERKIOMENVILLE RD.

Poor

Over: GOSHENHOPPEN CREEK

U. FREDERICK 6G12/3028K1, Montgomery, PA

Built 1927 Load: 25.4 t ADT: 1,553

SR 1012

Poor

Over: WILDCAT RUN

2.5 MI.S.W. MILLERSTOWN, Perry, PA

Built 1948 Load: 25.4 t ADT: 368

WOODLAND DR.

Poor

Over: PLUM CREEK

S.MANHEIM TWP. ON T-676, Schuylkill, PA

Built 1970 Load: 25.4 t ADT: 50

SPRING T467

Poor

Over: T467 OVER SWIFT RUN

2 MI.SW OF TROXELVILLE, Snyder, PA

Built 1950 Load: 25.4 t ADT: 100

SR 2020

Poor

Over: POORBAUGH RUN

3 MI.NW.OF FAIRHOPE, Somerset, PA

Built 1937 Load: 25.4 t ADT: 87

SR 3050 TWP RD 601

Poor

Over: ELK LAKE STREAM

RUSH TWP .6 M S SR 3023, Susquehanna, PA

Built 1974 Load: 25.4 t ADT: 59

SR4031 PLSNT VW DR

Poor

Over: JOHNSONS CREEK

MT PLESNT TP .8M N SR4008, Wayne, PA

Built 1947 Load: 25.4 t ADT: 164

T-750 BUSH ROAD

Poor

Over: LITTLE EQUINUNK CREEK

AT SR 1018 INTERSECTION, Wayne, PA

Built 1970 Load: 25.4 t ADT: 30

SR 2050

Poor

Over: MUDDY CREEK

2 MILE EAST OF FELTON, York, PA

Built 1954 Load: 25.4 t ADT: 122

SR 2095

Poor

Over: TRIB OF E BR CODORUS CR

1 MI. S.W. OF WINTERSTOWN, York, PA

Built 1941 Load: 25.4 t ADT: 3,683

T536; MAPLE STREET

Poor

Over: SOUTH BR CODORUS CREEK

0.25S 7VALLEYS/S.BR.CODOR, York, PA

Built 1955 Load: 25.4 t ADT: 236

34TH STREET

Poor

Over: CSX RR TUNNELS

GRAYS FERRY AVE. 3589J10, Philadelphia, PA

Built 1896 Load: 25.4 t ADT: 34,747

RIDGE AVENUE

Poor

Over: WISSAHICKON CREEK

GUSTINE LAKE INTER3479G08, Philadelphia, PA

Built 1888 Load: 25.4 t ADT: 15,917

Riverside Drive

Poor

Over: Bushy Run

300 FT FROM INT W/MAIN ST, Westmoreland, PA

Built 1969 Load: 25.4 t ADT: 50

CIRCLE DRIVE

Poor

Over: PINE RUN

200 FEET EAST OF ZION CHU, York, PA

Built 1970 Load: 25.4 t ADT: 150

SR 8 NB

Poor

Over: RT.28 RAILROAD LOCAL ST.

62nd Street Bridge, Allegheny, PA

Built 1960 Load: 26.3 t ADT: 6,302

SMITHFIELD STREET

Poor

Over: I-376 & SR 8041(RAMP F)

Smithfield St Bridge, Allegheny, PA

Built 1954 Load: 26.3 t ADT: 6,901

Showing 21,701-21,750 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.