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

T611 DUNMYER ROAD

Fair

Over: BEAVER DAM CREEK

1.5 MI.SW.OF STOYSTOWN, Somerset, PA

Built 1964 Load: 15.4 t ADT: 60

SR 4008

Fair

Over: LAUREL LAKE CREEK

SILVER LK TP 1.7M E TR167, Susquehanna, PA

Built 1959 Load: 15.4 t ADT: 391

T-603 (BALDWIN RD)

Fair

Over: WYALUSING CREEK

2.5 MI WEST OF RUSH, Susquehanna, PA

Built 1980 Load: 15.4 t ADT: 75

T-616 (CTY BR # 2)

Fair

Over: CROOKED CREEK

VILLAGE OF LITTLE MARSH, Tioga, PA

Built 1900 Load: 15.4 t ADT: 150

T-414

Fair

Over: WHEELING CREEK TRIB

INTERSECTION W/T414, Washington, PA

Built 1887 Load: 15.4 t ADT: 50

SR 0006 TR 6

Fair

Over: LACKAWAXEN RIVER

HAWLEY BORO JCT SR 2004, Wayne, PA

Built 1943 Load: 15.4 t ADT: 6,850

SLOAN SCHOOL ROAD

Fair

Over: HAYMAKER RUN

ENTRANCE TO SLOAN SCHOOL, Westmoreland, PA

Built 1960 Load: 15.4 t ADT: 400

SR 4019

Fair

Over: BEAVER CREEK

.8 MI SOUTH OF PA 74, York, PA

Built 1961 Load: 15.4 t ADT: 2,205

GARRISTON ROAD

Fair

Over: BENNETT RUN

1.5 S.E.LEWBRY/BENNETT RN, York, PA

Built 1972 Load: 15.4 t ADT: 600

PA 394; SR 0394

Fair

Over: US 15; SR 0015

W. OF HUNTERSTOWN, Adams, PA

Built 1963 Load: 16.3 t ADT: 3,688

BULLFROG ROAD

Fair

Over: SPRING RUN

E 1 FAIRFIELD/SPRING RUN, Adams, PA

Built 1940 Load: 16.3 t ADT: 450

SR3023

Fair

Over: BUFFALO CREEK

IRON BRIDGE NO.1, Armstrong, PA

Built 1984 Load: 16.3 t ADT: 297

T-427 YELLOW DOG

Fair

Over: BUFFALO CREEK

1 mile west of sr 3011, Armstrong, PA

Built 1924 Load: 16.3 t ADT: 125

SR 3002

Fair

Over: GLADDENS RUN

1 MI.W.OF PALO ALTO, Bedford, PA

Built 1968 Load: 16.3 t ADT: 263

SR 2013 (LR 06089)

Fair

Over: I-176 (LR1011)

SHILOH ROAD, Berks, PA

Built 1962 Load: 16.3 t ADT: 275

MOUNTAINSIDE ROAD

Fair

Over: LAUREL RUN

TEMPLE, Berks, PA

Built 1976 Load: 16.3 t ADT: 150

SR 2007

Fair

Over: SUGAR RUN

4 MI.EAST OF NEW ERA, Bradford, PA

Built 1961 Load: 16.3 t ADT: 742

CORN CRIB LANE

Fair

Over: US-1 BY-PASS

.5MI.W.OLD LINC.HY.37C11, Bucks, PA

Built 1965 Load: 16.3 t ADT: 865

POINT PLEASANT PK.

Fair

Over: PENNSYLVANIA CANAL

POINT PLEASANT 18A04, Bucks, PA

Built 1877 Load: 16.3 t ADT: 118

SR 1016

Fair

Over: DELAWARE River

RIEGELSVILLE PA 01J12, Bucks, PA

Built 1904 Load: 16.3 t ADT: 3,300

UNION MILL DRIVE

Fair

Over: DELAWARE CANAL

AT SR 32 INTERSECT, Bucks, PA

Built 1832 Load: 16.3 t ADT: 60

SR2018

Fair

Over: LITTLE BUFFALO CREEK

BUFFALO TWP-SARVER, Butler, PA

Built 1983 Load: 16.3 t ADT: 1,287

SR4007

Fair

Over: MUDDY CREEK

WEST PARK RD NO.3, Butler, PA

Built 1969 Load: 16.3 t ADT: 1,637

GREENWOOD DRIVE

Fair

Over: LITTLE CONNOQUEN CR

0.35 MI SW of SR 422, Butler, PA

Built 1980 Load: 16.3 t ADT: 750

L GEORGES VLLY RD

Fair

Over: POTTER RUN

1200 FT NE OF SR 144, Centre, PA

Built 1965 Load: 16.3 t ADT: 350

DUTTON MILL ROAD

Fair

Over: RIDLEY CREEK

E GOSHEN TWP 3584-H4, Chester, PA

Built 1922 Load: 16.3 t ADT: 1,886

T-365 CTY BR#50

Fair

Over: CATAWISSA CREEK

3.4 MI SE OF SHUMANS, Columbia, PA

Built 1930 Load: 16.3 t ADT: 120

SR 79 NB

Fair

Over: OVER CONNEAUT SWAMP

GREENWOOD TOWNSHIP, Crawford, PA

Built 1969 Load: 16.3 t ADT: 6,554

I-81 SB; SR 0081

Fair

Over: PA 34; SR 0034

I-81 OVER PA 34, Cumberland, PA

Built 1962 Load: 16.3 t ADT: 27,946

944 Wertzville Rd

Fair

Over: I-81; SR 0081

MT.ZION, Cumberland, PA

Built 1973 Load: 16.3 t ADT: 11,886

BRIDGE ROAD

Fair

Over: CONODOGUINET CREEK

1.6 W W.FRVW/CONODGUINET, Cumberland, PA

Built 1966 Load: 16.3 t ADT: 678

PA 39; SR 0039

Fair

Over: I-81; SR 0081

3MI E OF LINGLESTOWN, Dauphin, PA

Built 1967 Load: 16.3 t ADT: 9,162

HASKELL HILL T-559

Fair

Over: FRENCH CREEK TRIB

1/2 MI NE OF HOPSON HILL, Erie, PA

Built 1979 Load: 16.3 t ADT: 130

WENGER ROAD

Fair

Over: WILSON RUN

1 MI SW OF SR 4010, Franklin, PA

Built 1962 Load: 16.3 t ADT: 200

US 30

Fair

Over: US 522

OVER TR 522, Fulton, PA

Built 1966 Load: 16.3 t ADT: 2,984

T516 PEACH ORCHARD

Fair

Over: US 30

OVER US 30, Fulton, PA

Built 1966 Load: 16.3 t ADT: 764

T369 MILL LANE

Fair

Over: GREAT TROUGH CREEK

2 MI.SW.OF CASSVILLE, Huntingdon, PA

Built 1988 Load: 16.3 t ADT: 79

SR2010

Fair

Over: TROUT RUN

TROUT RUN NO.3, Jefferson, PA

Built 1961 Load: 16.3 t ADT: 140

TR 307 MOOSIC ST

Fair

Over: SR 0081 I-81 NORTHBOUND

SCRANTON CTY OVER I-81 NB, Lackawanna, PA

Built 1965 Load: 16.3 t ADT: 17,668

US 222 N.B SR 0222

Fair

Over: T-620; CK RD; LITITZ CK

0.5 MI.S. OREGON I-CHANGE, Lancaster, PA

Built 1972 Load: 16.3 t ADT: 25,941

HUNSECKER RD.

Fair

Over: CONESTOGA RIVER

HUNSECKER, Lancaster, PA

Built 1974 Load: 16.3 t ADT: 995

SR 2031

Fair

Over: LITTLE BEAVER CREEK

1 MI.E. OF REFTON, Lancaster, PA

Built 1938 Load: 16.3 t ADT: 590

SR 4004

Fair

Over: CONOY CREEK

STACKTOWN, Lancaster, PA

Built 1974 Load: 16.3 t ADT: 495

T700 POOL FORGE RD

Fair

Over: CONESTOGA RIVER TRIB

1/2 MI SOUTH OF SR 23, Lancaster, PA

Built 1963 Load: 16.3 t ADT: 720

COLEBROOK RD

Fair

Over: CHIQUES CREEK

3/4 MILE NW OF T-711, Lancaster, PA

Built 1970 Load: 16.3 t ADT: 1,140

T-490 HESS RD

Fair

Over: ENOLA LOW GRADE TRAIL

1500 FT SOUTH OF SR 372, Lancaster, PA

Built 1988 Load: 16.3 t ADT: 105

PINKERTON RD

Fair

Over: LITTLE CHIQUES CREEK

1 MILE NW OF SR 4003, Lancaster, PA

Built 1883 Load: 16.3 t ADT: 465

SR 1022; BOHN LN.

Fair

Over: I-81;SR 0081

0.5 MI.N. OF EXIT 90, Lebanon, PA

Built 1967 Load: 16.3 t ADT: 393

WALNUT STREET

Fair

Over: SNITZ CREEK

WALNUT ST. SNITZ CR., Lebanon, PA

Built 1960 Load: 16.3 t ADT: 1,000

REX ROAD

Fair

Over: JORDAN CREEK

JORDAN VALLEY, Lehigh, PA

Built 1940 Load: 16.3 t ADT: 50

Showing 401-450 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.