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 3029

Fair

Over: GEORGE CREEK

GEORGES TOWNSHIP, Fayette, PA

Built 1979 Load: 43.5 t ADT: 5,064

DAHL ROAD

Fair

Over: BACK CREEK

1.5 MI. NE OF INDIAN HEAD, Fayette, PA

Built 1980 Load: 43.5 t ADT: 120

YORK AVE

Fair

Over: MOUNTS CREEK

350 N. OF SR 119, Fayette, PA

Built 1974 Load: 43.5 t ADT: 800

SR 3001 RED BRUSH

Fair

Over: OVER LITTLE TIONESTA CK

TIONESTA TOWNSHIP, Forest, PA

Built 1952 Load: 43.5 t ADT: 72

PA TPK (I-76)

Fair

Over: T-430

NEAR FORT LITTLETON, Fulton, PA

Built 1939 Load: 43.5 t ADT: 21,197

T-363 MARTIN ROAD

Fair

Over: TONOLOWAY CREEK

NEEDMORE, Fulton, PA

Built 1992 Load: 43.5 t ADT: 51

T319 JOHNSON ROAD

Fair

Over: LICKING CREEK

2 MI.E.OF PLUM RUN, Fulton, PA

Built 1878 Load: 43.5 t ADT: 50

TOWNSHIP ROAD 616

Fair

Over: BROWNS RUN

WEST OF MATHER, Greene, PA

Built 1908 Load: 43.5 t ADT: 30

TOWNSHIP ROAD 717

Fair

Over: HOOVERS RUN

N. OF KUHNTOWN, Greene, PA

Built 1912 Load: 43.5 t ADT: 50

US 22

Fair

Over: CROOKED CREEK

.3 MI E SR3035 SMITHFIELD, Huntingdon, PA

Built 1948 Load: 43.5 t ADT: 9,540

PA 26

Fair

Over: STANDING STONE CREEK

756FT N TR 305 ENNISVILLE, Huntingdon, PA

Built 1991 Load: 43.5 t ADT: 2,225

T444 Main Street

Fair

Over: SUGAR GROVE RUN

MILL CREEK OLD RTE 22, Huntingdon, PA

Built 1930 Load: 43.5 t ADT: 316

SR0954

Fair

Over: BUFF & PITT RR

MARTIN ROAD, Indiana, PA

Built 1985 Load: 43.5 t ADT: 1,279

SR1007

Fair

Over: CROOKED CREEK

TANOMA NO.2, Indiana, PA

Built 1939 Load: 43.5 t ADT: 267

SR0036

Fair

Over: REDBANK CREEK

SOUTH WHITE STREET, Jefferson, PA

Built 1996 Load: 43.5 t ADT: 4,070

SR3015

Fair

Over: MAHONING CREEK

FORDHAM, Jefferson, PA

Built 1985 Load: 43.5 t ADT: 128

SR 74-PA 74

Fair

Over: HUNTERS CREEK

2 MI NE SPRUCE HILL, Juniata, PA

Built 1960 Load: 43.5 t ADT: 1,149

SR 0081 I-81 NB

Fair

Over: Delaware-Lackawanna RR

MOOSIC BORO .2M S SR 3016, Lackawanna, PA

Built 1962 Load: 43.5 t ADT: 26,433

SR 0081 I-81 SB

Fair

Over: LUZERNE CO. RR AUTHORITY

MOOSIC BORO .2M S SR 3016, Lackawanna, PA

Built 1962 Load: 43.5 t ADT: 26,216

US 30; SR 0030

Fair

Over: CONESTOGA RIVER

N.E. OF LANCASTER CITY, Lancaster, PA

Built 1953 Load: 43.5 t ADT: 105,303

US 222 NB; SR 0222

Fair

Over: SR 1040; Spur Road

2 mi. E. of Reamstown, Lancaster, PA

Built 1972 Load: 43.5 t ADT: 18,311

PA462 Lancaster Av

Fair

Over: Shawnee Run

Columbia Borough, Lancaster, PA

Built 1933 Load: 43.5 t ADT: 10,806

SR 4040 Doe Run RD

Fair

Over: TRIB CHICKIES CREEK

1.25 MI. E. MANHEIM, Lancaster, PA

Built 1983 Load: 43.5 t ADT: 6,522

T702 PLSNT VLLY RD

Fair

Over: MUDDY CREEK

1/2 MI SE OF SR 897, Lancaster, PA

Built 1934 Load: 43.5 t ADT: 620

T-478 HOLLOW ROAD

Fair

Over: TRIB BIG BEAVER CREEK

100 FT. SOUTH OF T-413, Lancaster, PA

Built 1988 Load: 43.5 t ADT: 320

MILL STREET

Fair

Over: SHAWNEE RUN

800 FT EAST OF FOURTH ST, Lancaster, PA

Built 1981 Load: 43.5 t ADT: 825

BEN FRANKLIN HW

Fair

Over: WILLOW BROOK

300NW OF INT.W/SR 0422, Lawrence, PA

Built 1950 Load: 43.5 t ADT: 7,438

MCKEE RD-BARKLEY#1

Fair

Over: CAMP RUN

207001 NEAR T-353, Lawrence, PA

Built 1913 Load: 43.5 t ADT: 50

S LINCOLN AVE

Fair

Over: HAZEL DYKE

AT E ELM ST INTERSECT, Lebanon, PA

Built 1987 Load: 43.5 t ADT: 1,500

SOUTH 6TH STREET

Fair

Over: HAZEL DYKE

150 NORTH OF ELM ST, Lebanon, PA

Built 1987 Load: 43.5 t ADT: 300

SR 863 (LR 39066)

Fair

Over: KISTLER CREEK

GOLDEN KEY RD., Lehigh, PA

Built 1930 Load: 43.5 t ADT: 277

SR 1017 (LR 39038)

Fair

Over: JORDAN CREEK

INTERSECTION OF SR 1021, Lehigh, PA

Built 1949 Load: 43.5 t ADT: 15,389

SR2038(LR 39076)

Fair

Over: I-78(LR 1045)

OAKHURST DR. OVER I-78, Lehigh, PA

Built 1989 Load: 43.5 t ADT: 1,286

SOUTH FIFTH STREET

Fair

Over: TROUT CREEK

NEAR SUSQUEHANNA STREET, Lehigh, PA

Built 1913 Load: 43.5 t ADT: 100

SR 0873 LR 163

Fair

Over: PA TPK (I-476)

3 MI SOUTH OF SLATINGTON, Lehigh, PA

Built 1955 Load: 43.5 t ADT: 7,116

SR 0081 I-81 NB

Fair

Over: READING BLUEMT& NORTHERN

LAFLIN BORO .5 M S EX#175, Luzerne, PA

Built 1963 Load: 43.5 t ADT: 26,655

TR 309 NB & SB

Fair

Over: WILKES BARRE BOULEVARD

W.BARRE CTY OVER W.B.BLVD, Luzerne, PA

Built 1991 Load: 43.5 t ADT: 46,639

SHADY HLL ROAD

Fair

Over: E. FORK HARVEYS CREEK

CHASE ROAD INTERSECTION, Luzerne, PA

Built 1927 Load: 43.5 t ADT: 72

WEST CHERRY ROAD

Fair

Over: TRIB. OF NESCOPECK CREEK

2000 FT NW OF ZENITH, Luzerne, PA

Built 1909 Load: 43.5 t ADT: 25

PA TPK (I-476)

Fair

Over: SR 0115 LR 169

LLEWELLYNS CORNERS, Luzerne, PA

Built 1957 Load: 43.5 t ADT: 9,523

PA TPK (I-476)

Fair

Over: CENTERPOINTE BLVD

NEAR YATESVILLE, Luzerne, PA

Built 1956 Load: 43.5 t ADT: 6,576

SR 2061

Fair

Over: OVER LITTLE MUNCY CREEK

CLARKSTOWN, Lycoming, PA

Built 1963 Load: 43.5 t ADT: 726

S.R. 3013

Fair

Over: OVER QUENSHUKENY RUN

2 MI N OF LINDEN, Lycoming, PA

Built 1962 Load: 43.5 t ADT: 865

SR 1006

Fair

Over: MCCREA BROOK

BULLIS MILLS, McKean, PA

Built 1959 Load: 43.5 t ADT: 466

SR 79 NB

Fair

Over: OVER ABDND.RR&YELLOW CK

JACKSON TOWNSHIP, Mercer, PA

Built 1966 Load: 43.5 t ADT: 7,292

SR 79 SB

Fair

Over: OVER ABDND.RR&YELLOW CK

JACKSON TOWNSHIP, Mercer, PA

Built 1966 Load: 43.5 t ADT: 7,014

SR 1101 CREEK ROAD

Fair

Over: OVER SR 79 SB

NEW VERNON TOWNSHIP, Mercer, PA

Built 1969 Load: 43.5 t ADT: 162

SR 80 EB

Fair

Over: OVER SR 258 BUTLER PIKE

FINDLEY TOWNSHIP, Mercer, PA

Built 1965 Load: 43.5 t ADT: 12,524

SR 80 WB

Fair

Over: OVER SR 258 BUTLER PIKE

FINDLEY TOWNSHIP, Mercer, PA

Built 1966 Load: 43.5 t ADT: 12,975

SR 80 EB

Fair

Over: OVER BLACK RUN

WOLF CREEK TOWNSHIP, Mercer, PA

Built 1965 Load: 43.5 t ADT: 12,564

Showing 8,901-8,950 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.