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

US 209; SR 0209

Fair

Over: WICONISCO CREEK

3 MI.E. OF E-VILLE, Dauphin, PA

Built 1941 Load: 35.4 t ADT: 3,491

PA 283 EB; SR 0300

Fair

Over: CONEWAGO CREEK

COUNTY LINE, Dauphin, PA

Built 1971 Load: 35.4 t ADT: 21,988

PA 283 WB; SR 0300

Fair

Over: CONEWAGO CREEK

COUNTY LINE, Dauphin, PA

Built 1971 Load: 35.4 t ADT: 23,485

PA 441; SR 0441

Fair

Over: CONEWAGO CREEK

COUNTY LINE, Dauphin, PA

Built 1934 Load: 35.4 t ADT: 3,837

PA 441; LINDLE RD.

Fair

Over: I-283; SR 0283

2MILES N OF HIGHSPIRE, Dauphin, PA

Built 1969 Load: 35.4 t ADT: 14,178

SR 3017

Fair

Over: I-81; SR 0081

1.5 NORTH OF PROGRESS, Dauphin, PA

Built 1968 Load: 35.4 t ADT: 13,222

SR 4002

Fair

Over: SHIPPENS RUN

.5 MI. N.E. MILLERSBURG, Dauphin, PA

Built 1982 Load: 35.4 t ADT: 135

RED TOP ROAD

Fair

Over: BEAVER CREEK

3 NW HMLT/S.HNV/L.PXT/BVR, Dauphin, PA

Built 1979 Load: 35.4 t ADT: 750

WEST CHESTER PIKE

Fair

Over: MID-COUNTY EXY&RAMP WC

W.CHESTER PK.INTER.25K07, Delaware, PA

Built 1989 Load: 35.4 t ADT: 41,612

INTERSTATE 95(SB)

Fair

Over: CRUM CREEK

JUNCTION W/I-476 43K01, Delaware, PA

Built 1975 Load: 35.4 t ADT: 42,682

DARBY PAOLI ROAD

Fair

Over: SAINT DAVIDS ROAD

2MI.N.W.CHESTER PK.24J02, Delaware, PA

Built 1968 Load: 35.4 t ADT: 19,384

SOUTH AVENUE

Fair

Over: MUCKINIPATTIS CREEK

.1MI.N.US 13 35G09, Delaware, PA

Built 1965 Load: 35.4 t ADT: 9,983

ROSE TREE ROAD

Fair

Over: RIDLEY CREEK

NORTH OF MEDIA 33K04, Delaware, PA

Built 1986 Load: 35.4 t ADT: 4,611

RAMP M3(NB)I-476

Fair

Over: I-95 CSX RR;&CRUM CREEK

JUNCTION I-476 43K01, Delaware, PA

Built 1975 Load: 35.4 t ADT: 24,868

SR 2003

Fair

Over: BRANDY CAMP CREEK

CHALLENGE, Elk, PA

Built 1953 Load: 35.4 t ADT: 2,178

SR 5 WEST LAKE RD

Fair

Over: OVER SR 8011 RAMP G

CITY OF ERIE, Erie, PA

Built 1983 Load: 35.4 t ADT: 14,405

SR 6 COLUMBUS AVE

Fair

Over: OVER HARE CREEK

CITY OF CORRY, Erie, PA

Built 1930 Load: 35.4 t ADT: 8,347

SR 79 NB

Fair

Over: OVER SR 3020 & ELK CK.

MCKEAN TOWNSHIP, Erie, PA

Built 1969 Load: 35.4 t ADT: 9,844

SR 79 SB

Fair

Over: OVER W 16TH CSX & NS RR

CITY OF ERIE, Erie, PA

Built 1983 Load: 35.4 t ADT: 9,771

SR 90 EB

Fair

Over: OVER SR 89 N/SB STATION

NORTH EAST TOWNSHIP, Erie, PA

Built 1959 Load: 35.4 t ADT: 10,184

SR 1001 LOGAN ROAD

Fair

Over: OVER PLEASANT LAKE OUTLT

AMITY TOWNSHIP, Erie, PA

Built 1972 Load: 35.4 t ADT: 1,390

SR 2020 WSHNGTN.ST

Fair

Over: OVER FRENCH CREEK S BR

CONCORD TOWNSHIP, Erie, PA

Built 1962 Load: 35.4 t ADT: 1,224

SR 4012 ZIMMERLY R

Fair

Over: OVER SR 79 NB/SB

MILL CREEK TOWNSHIP, Erie, PA

Built 1965 Load: 35.4 t ADT: 13,607

SR 0040

Fair

Over: SR 0043

SOUTH UNION TOWNSHIP, Fayette, PA

Built 1972 Load: 35.4 t ADT: 5,526

SR 1051

Fair

Over: BRANCH OF MOUNTS CREEK

BULLSKIN TOWNSHIP, Fayette, PA

Built 1938 Load: 35.4 t ADT: 431

SR 1054

Fair

Over: NEWMYER RUN

SALTLICK TOWNSHIP, Fayette, PA

Built 1941 Load: 35.4 t ADT: 560

SR 1058

Fair

Over: CHAMPION CREEK

SALTLICK & DONEGAL TWPS., Fayette, PA

Built 1948 Load: 35.4 t ADT: 1,390

SR 4027

Fair

Over: LITTLE REDSTONE CREEK

JEFFERSON TOWNSHIP, Fayette, PA

Built 1942 Load: 35.4 t ADT: 360

YURAS FARM ROAD

Fair

Over: BROWNS RUN

BETWEEN SR 21 AND SR 166, Fayette, PA

Built 1903 Load: 35.4 t ADT: 60

BRIGHTWELL DRIVE

Fair

Over: DOWNERS RUN

JOHNSON HOLLOW & SR 4044, Fayette, PA

Built 1920 Load: 35.4 t ADT: 100

PA 163;Mason Dixon

Fair

Over: I-81; SR 0081

Mason Dixon Line, Franklin, PA

Built 1960 Load: 35.4 t ADT: 2,621

SR1004;Scotland Av

Fair

Over: Conococheague Creek

Near Scotland, Franklin, PA

Built 1928 Load: 35.4 t ADT: 2,684

SR 2008;Pen-Mar Rd

Fair

Over: Falls Creek

S.E. OF ROUZERVILLE, Franklin, PA

Built 1971 Load: 35.4 t ADT: 2,195

SR 2016 clayhill

Fair

Over: I-81;SR 0081

1.75 ML. S.OF MARION, Franklin, PA

Built 1963 Load: 35.4 t ADT: 769

T-569 SHEARER ROAD

Fair

Over: DRY RUN

0.30 MI. W OF SR 641, Franklin, PA

Built 1974 Load: 35.4 t ADT: 150

US 30

Fair

Over: SINDELDECKER RUN

SALUVIA, Fulton, PA

Built 1987 Load: 35.4 t ADT: 2,968

SR 0018

Fair

Over: SOUTH FORK TENMILE CREEK

FRANKLIN TOWNSHIP, Greene, PA

Built 1927 Load: 35.4 t ADT: 7,555

SR 0021

Fair

Over: LITTLE WHITELEY CREEK

CUMBERLAND & MONONGAHELA, Greene, PA

Built 1950 Load: 35.4 t ADT: 9,297

SR 0079

Fair

Over: SR 2026

FRANKLIN TOWNSHIP, Greene, PA

Built 1971 Load: 35.4 t ADT: 10,245

SR 3013

Fair

Over: TENMILE CREEK

FRANKLIN TOWNSHIP, Greene, PA

Built 1928 Load: 35.4 t ADT: 1,812

TOWNSHIP ROAD 362

Fair

Over: FISH CREEK

FREEPORT TOWNSHIP, Greene, PA

Built 1994 Load: 35.4 t ADT: 20

T-808 L SHANNON RD

Fair

Over: SHANNON RUN

AT SR 2003 INTERSECT, Greene, PA

Built 1942 Load: 35.4 t ADT: 250

US 22

Fair

Over: PRIVATE ROAD

0.6 MILE EAST OF SR 1010, Huntingdon, PA

Built 1948 Load: 35.4 t ADT: 15,442

PA 45

Fair

Over: BR.OF SPRUCE CREEK

0.9 MILE EAST OF SR 4017, Huntingdon, PA

Built 1950 Load: 35.4 t ADT: 1,439

PA 45

Fair

Over: SPRUCE CREEK

3.5 MILE EAST OF TR 350, Huntingdon, PA

Built 1951 Load: 35.4 t ADT: 1,760

SR 3027

Fair

Over: LITTLE TROUGH CREEK

1.5 MI.SW.OF CALVIN, Huntingdon, PA

Built 1950 Load: 35.4 t ADT: 161

SR0119 SB

Fair

Over: SR8001

WAYNE AVE RAMP SB, Indiana, PA

Built 1970 Load: 35.4 t ADT: 4,116

SR0119 NB

Fair

Over: SR1003

LUTZ SCHOOL RD NB, Indiana, PA

Built 1970 Load: 35.4 t ADT: 2,824

SR0119 SB

Fair

Over: SR1003

LUTZ SCHOOL RD SB, Indiana, PA

Built 1970 Load: 35.4 t ADT: 2,693

SR0422

Fair

Over: CURRY RUN

CURRY RUN, Indiana, PA

Built 1922 Load: 35.4 t ADT: 10,990

Showing 6,151-6,200 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.