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

GILMARTIN STREET

Good

Over: LACKAWANNA RIVER

ARCH BORO ADJ TO MAIN ST, Lackawanna, PA

Built 2008 Load: 27.2 t ADT: 8,160

MADISON DRIVE

Good

Over: RIDLEY CREEK

West of Line Road 3474D09, Chester, PA

Built 1990 Load: 27.2 t ADT: 250

MADISON DRIVE

Good

Over: RIDLEY CREEK

1/2 MI. EAST PA352 3474D9, Chester, PA

Built 1990 Load: 27.2 t ADT: 250

HACKMAN RD

Good

Over: HAMMER CREEK

ONLY BRIDGE ON HACKMAN RD, Lancaster, PA

Built 1993 Load: 27.2 t ADT: 100

BOYLE RD; T-313

Good

Over: US 15; SR 0015 BMS3

N OF MARYLAND LINE, Adams, PA

Built 1963 Load: 28.1 t ADT: 1,141

RT 0030 EB WB

Good

Over: SR 2037 NB TRIBORO

RT 30 OVER SR 2037 NB, Allegheny, PA

Built 1970 Load: 28.1 t ADT: 16,855

MIFFLIN RD

Good

Over: SR 8059

AT GLENWOOD INTERCHANGE, Allegheny, PA

Built 1967 Load: 28.1 t ADT: 7,822

RAMP D RD

Good

Over: SR 0376 EB WB

I376 WILKINSBURG RAMP D, Allegheny, PA

Built 1952 Load: 28.1 t ADT: 5,831

T493 RABBIT LANE

Good

Over: DUNNING CREEK

1.46 MILE E. FROM SR 1014, Bedford, PA

Built 1962 Load: 28.1 t ADT: 258

SR 3014

Good

Over: SULPHUR SPRINGS CREEK

1.11 MILE EAST FROM PA 96, Bedford, PA

Built 1984 Load: 28.1 t ADT: 118

PICKERTOWN ROAD

Good

Over: MILL CREEK

WARRINGTON TWP. 28D07, Bucks, PA

Built 2004 Load: 28.1 t ADT: 1,000

PA940 (LR 408)

Good

Over: HAYES CREEK

LEONARDSVILLE, Carbon, PA

Built 1934 Load: 28.1 t ADT: 1,971

PAOLI PIKE

Good

Over: W. BR. RIDLEY CREEK

W. OF RTE. 352 32J5, Chester, PA

Built 1998 Load: 28.1 t ADT: 9,167

SR 53-PA 53

Good

Over: PORTER RUN

GLEN HOPE, Clearfield, PA

Built 1984 Load: 28.1 t ADT: 1,606

T-573

Good

Over: PA TPK (I-76)

SILVER SPRING TWP, Cumberland, PA

Built 1949 Load: 28.1 t ADT: 200

T-571

Good

Over: PA TPK (I-76)

SILVER SPRING TWP, Cumberland, PA

Built 1949 Load: 28.1 t ADT: 200

SR 8001 RAMP G I81

Good

Over: SR 3009

SUSQUEHANNA TWP, Dauphin, PA

Built 1972 Load: 28.1 t ADT: 2,937

BALTIMORE PIKE

Good

Over: DARBY CREEK

LANSDOWNE LINE 35H02, Delaware, PA

Built 1919 Load: 28.1 t ADT: 16,050

SR 899

Good

Over: OVER HUELING RUN

BARNETT TOWNSHIP, Forest, PA

Built 1962 Load: 28.1 t ADT: 1,483

PA 994

Good

Over: RAYSTOWN LAKE COFFEE RUN

1.1 MILE EAST OF SR 3009, Huntingdon, PA

Built 1973 Load: 28.1 t ADT: 1,435

SR 0380 I-380 SB

Good

Over: SR 0690 TR 690

MOSCOW BORO OVER TR 690, Lackawanna, PA

Built 1975 Load: 28.1 t ADT: 9,992

1072;T656 Pool Rd

Good

Over: 222

1 MI.N. OF PA 772 I-CHGE, Lancaster, PA

Built 1970 Load: 28.1 t ADT: 685

1076;T664;Peach Rd

Good

Over: 222NB 222SB

1 MI. S.W. OF US 322, Lancaster, PA

Built 1970 Load: 28.1 t ADT: 1,054

PORTLAND STREET

Good

Over: COPLAY CREEK

WEST OF QUARRY STREET, Lehigh, PA

Built 1991 Load: 28.1 t ADT: 120

SR 0309 TR 309 NB

Good

Over: SR 2022 RAILRDS N.WASHIN

WILKES BARRE OVER SR 2022, Luzerne, PA

Built 1989 Load: 28.1 t ADT: 22,933

SR 0015 SB

Good

Over: OVER BLOCKHOUSE CREEK

VILLAGE OF BUTTONWOOD, Lycoming, PA

Built 1974 Load: 28.1 t ADT: 5,582

BENNETT ST. BR#207

Good

Over: LAUREL RUN

PICTURE ROCKS BOROUGH, Lycoming, PA

Built 1990 Load: 28.1 t ADT: 35

MORRIS ROAD

Good

Over: PROPHECY CREEK / 3257-C6

SOUTH OF AMBLER 30F02, Montgomery, PA

Built 1979 Load: 28.1 t ADT: 8,825

SR 147

Good

Over: SHAMOKIN CR/NS#117-30563

1 MI S OF SUNBURY, Northumberland, PA

Built 1991 Load: 28.1 t ADT: 8,286

SR 0084 I-84 EB

Good

Over: SR 2017

MILFORD TWP OVER SR 2017, Pike, PA

Built 1969 Load: 28.1 t ADT: 9,358

SR 2002

Good

Over: WETMORE RUN

3 MI SW GALETON, Potter, PA

Built 1994 Load: 28.1 t ADT: 476

(SR-104)

Good

Over: OVER PENNS CREEK

3 MI S OF MIFFLINBURG, Union, PA

Built 1943 Load: 28.1 t ADT: 4,856

SR 27 GRANT STREET

Good

Over: OVER BLUE EYE RUN

PITTSFIELD TOWNSHIP, Warren, PA

Built 1983 Load: 28.1 t ADT: 2,285

SR 3009 ELM STREET

Good

Over: OVER TIDIOUTE CREEK

DEERFIELD TOWNSHIP, Warren, PA

Built 1995 Load: 28.1 t ADT: 353

SR 0088

Good

Over: MINGO CREEK

CARROLL & UNION TOWNSHIP, Washington, PA

Built 1985 Load: 28.1 t ADT: 2,269

SR 4077

Good

Over: LITTLE PUCKETA CREEK

UPPER BURRELL TOWNSHIP, Westmoreland, PA

Built 1972 Load: 28.1 t ADT: 2,465

SR 3046

Good

Over: YRKRAIL; MD @ PA RR W BR

HIGHLAND AVE IN WEST YORK, York, PA

Built 1958 Load: 28.1 t ADT: 4,255

SR 4022; TWP AHEAD

Good

Over: PIPPINS RUN

1 MI.N. OF SIDDENSBURG, York, PA

Built 1962 Load: 28.1 t ADT: 1,427

SR15 NORTH BOUND

Good

Over: NB OVER SR 2005

.5 MILE NORTH OF LIBERTY, Tioga, PA

Built 1997 Load: 28.1 t ADT: 4,491

SR15 SOUTH BOUND

Good

Over: SB OVER SR 2005

.5 MILE NORTH OF LIBERTY, Tioga, PA

Built 1997 Load: 28.1 t ADT: 4,449

SR 1017

Good

Over: HANNAS RUN

LIGONIER TWP, Westmoreland, PA

Built 2001 Load: 28.1 t ADT: 566

SR-75 US-75

Good

Over: TUSCARORA CREEK

PORT ROYAL, Juniata, PA

Built 2007 Load: 28.1 t ADT: 5,196

I-80 WB(LR 1009)

Good

Over: TUNKHANNOCK CREEK

AT CARBON CO. LINE, Monroe, PA

Built 2006 Load: 28.1 t ADT: 8,298

I - 80 EB (LR1009)

Good

Over: TUNKHANNOCK CREEK

AT CARBON CTY. LINE, Monroe, PA

Built 2006 Load: 28.1 t ADT: 8,087

WEIMER HOLLOW RD

Good

Over: SARTWELL CREEK

450 FT EAST OF SR 4001, Potter, PA

Built 1980 Load: 28.1 t ADT: 50

T-950

Good

Over: MILL CREEK

0.6 M. EAST OF ROSEVILLE, Tioga, PA

Built 2012 Load: 28.2 t ADT: 2

RAYMOND SHAFER HW

Good

Over: SR 0051 AT GROVETON

GROVETON-I79 NB OVER TR51, Allegheny, PA

Built 1974 Load: 29.0 t ADT: 28,563

NORTHERN PIKE

Good

Over: THOMPSON RUN

500 SW OF INTER./SR 0022, Allegheny, PA

Built 1961 Load: 29.0 t ADT: 12,492

HARMONY FISHER AVE

Good

Over: ZELIENOPLE ROAD

1/4 MI. EAST OF SR 0065, Beaver, PA

Built 1976 Load: 29.0 t ADT: 442

SR 4009

Good

Over: OPPENHEIMER RUN

.5 MI.N.OF CESSNA, Bedford, PA

Built 1930 Load: 29.0 t ADT: 1,287

Showing 12,701-12,750 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.